Skocz do pozycji: 1.

Tytuł:

Filtered integral sliding mode control in a two-mass drive system

Autorzy:

Dróżdż, P.
Szabat, K.

Powiązania:

https://bibliotekanauki.pl/articles/1193310.pdf

Data publikacji:

2017

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

filtered integral sliding mode control
integral sliding mode control
two-mass system
chattering alleviation

Opis:

The paper presents issues related to the application of filtered integral sliding mode control to a two-mass drive system. A classical control structure has been presented and its design procedure is shown in detail. The properties of the classical structure, in which the chattering phenomenon seems to be a big drawback, have been summarized. In order to eliminate this phenomenon, an output low-pass filter has been proposed and the performance of this system has been tested. In order to improve its characteristics, an adaptive low-pass filter has been proposed. The bandwidth of the filter was changed on-line by the fuzzy system according to the current state of the plant. During the steady-states, the bandwidth is low to eliminate chattering effect, and during transients higher in order to ensure the fast dynamics of the plant.

Źródło:

Power Electronics and Drives; 2017, 2, 37/1; 121-134
2451-0262
2543-4292

Pojawia się w:

Power Electronics and Drives

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 2.

Tytuł:

An itae optimal sliding mode controller for systems with control signal and velocity limitations

Autorzy:

Pietrala, Mateusz
Leśniewski, Piotr
Bartoszewicz, Andrzej

Powiązania:

https://bibliotekanauki.pl/articles/2204689.pdf

Data publikacji:

2023

Wydawca:

Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej

Tematy:

sliding mode control
optimal control
state constraints

Opis:

In this paper, a sliding mode controller, which can be applied for second-order systems, is designed. Robustness to external disturbances, finite regulation time and a good system’s behaviour are required for a sliding mode controller. In order to achieve the first two of these three goals, a non-linear, time-varying switching curve is introduced. The representative point (state vector) belongs to this line from the very beginning of the control process, which results in elimination of the reaching phase. The stable sliding motion along the switching curve is provided. Natural limitations such as control signal and system’s velocity constraints will be taken into account. In order to satisfy them, the sliding line parameters will be properly selected. However, a good dynamical behaviour of the system has to be provided. In order to achieve that, the integral time absolute error (ITAE) quality index will be introduced and minimised. The simulation example will verify theoretical considerations.

Źródło:

Acta Mechanica et Automatica; 2023, 17, 2; 230--238
1898-4088
2300-5319

Pojawia się w:

Acta Mechanica et Automatica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 3.

Tytuł:

Dead-Beat and reaching law based sliding mode control laws for perishable inventories with transportation losses

Autorzy:

Bartoszewicz, A.
Maciejewski, M.

Powiązania:

https://bibliotekanauki.pl/articles/229507.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

sliding mode control
perishable inventories
inventory control

Opis:

This paper describes discrete sliding mode (SM) supply management strategies for inventory systems with perishable goods and transportation losses. In the considered systems, the stock used to satisfy the unknown, bounded and time-varying demand is replenished with some delay from a distant supply source. The on-hand stock deterioration during lead-time delay, as well as commodity losses in supply process are explicitly taken into account. Two supply management strategies are proposed. The first one ensures fast reaction to the imposed demand variations, but may result in excessive control signal magnitude at the beginning of the inventory management process. Therefore, in order to conform to supplier limitations we also develop an alternative control strategy based on the concept of the reaching law. That strategy helps reduce the initial supply rate and satisfy the supplier limitations. A number of desirable properties of both proposed strategies are formulated and formally proved. These properties include full customer demand satisfaction and elimination of the risk of exceeding the warehouse capacity.

Źródło:

Archives of Control Sciences; 2012, 22, 3; 255-272
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 4.

Tytuł:

Continuous and discrete sliding mode control of an active car suspension system

Autorzy:

Łuczko, J.
Ferdek, U.

Powiązania:

https://bibliotekanauki.pl/articles/280694.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

sliding mode control
active damping
car suspension

Opis:

In this paper, sliding mode control (SMC) algorithms are tested for their use in an active car suspension system. Using the quarter model of the car as an example, the comparison of the efficiency of the algorithms is made. A continuous and two discrete versions of the sliding mode control are taken into consideration. The study is limited to finding the relation between the control parameters and the comfort factor. This is done by analyzing the response of the model to the harmonic and impulse excitation.

Źródło:

Journal of Theoretical and Applied Mechanics; 2016, 54, 1; 3-11
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 5.

Tytuł:

Control of an Induction Motor Using Sliding Mode Linearization

Autorzy:

Etien, E.
Cauet, E.
Rambault, L.
Champenois, G.

Powiązania:

https://bibliotekanauki.pl/articles/908504.pdf

Data publikacji:

2002

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

automatyka
induction motor
sliding mode control
linearization

Opis:

Nonlinear control of the squirrel induction motor is designed using sliding mode theory. The developed approach leads to the design of a sliding mode controller in order to linearize the behaviour of an induction motor. The second problem described in the paper is decoupling between two physical outputs: the rotor speed and the rotor flux modulus. The sliding mode tools allow us to separate the control from these two outputs. To take account of parametric variations, a model-based approach is used to improve the robustness of the control law despite these perturbations. Experimental results obtained with a laboratory setup illustrate the good performance of this technique.

Źródło:

International Journal of Applied Mathematics and Computer Science; 2002, 12, 4; 523-531
1641-876X
2083-8492

Pojawia się w:

International Journal of Applied Mathematics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 6.

Tytuł:

Sliding mode control of periodic review perishable inventories with multiple suppliers and transportation losses

Autorzy:

Bartoszewicz, A.
Maciejewski, M.

Powiązania:

https://bibliotekanauki.pl/articles/200764.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

discrete time sliding mode control
sliding surface design
inventory control

Opis:

The purpose of this paper is to develop robust and computationally efficient supply chain management strategy ensuring fast reaction to the demand variations for periodic review perishable inventory systems. For that purpose, we apply a sliding mode approach and we propose a new discrete time warehouse management strategy. The strategy employs the sliding hyperplane appropriately designed to ensure a dead-beat performance of the closed loop system. Our strategy not only explicitly takes into account decay of goods stored in the warehouse (perishing inventories) but it also accounts for transportation losses which take place on the way from suppliers to the warehouse. The proposed strategy ensures full customers’ demand satisfaction, minimizes the on-hand inventory volume and prevents from exceeding the warehouse capacity. This reflects the need of simultaneous minimization of the lost sales costs and inventory holding costs. Furthermore, the strategy ensures that the ordered quantities of goods are always non-negative and upper bounded. These favourable properties of the proposed strategy are formally stated as a lemma and three theorems and proved in the paper.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 4; 885-892
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 7.

Tytuł:

Hierarchical sliding mode control for a class of SIMO under-actuated systems

Autorzy:

Qian, D.
Yi, J.
Zhao, D.

Powiązania:

https://bibliotekanauki.pl/articles/971008.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

control approaches
control applications
sliding mode control
underactuated systems

Opis:

A hierarchical sliding mode control approach is proposed for a class of SIMO under-actuated systems. This class of under-actuated systems is made up of several subsystems. Based on this physical structure, the hierarchical structure of the sliding surfaces is designed as follows. At first, the sliding surface of every subsystem is defined. Then the sliding surface of one subsystem is defined as the first layer sliding surface. The first layer sliding surface is used to construct the second layer sliding surface with the sliding surface of another subsystem. This process continues till the sliding surfaces of the entire subsystems are included. According to the hierarchical structure, the total control law is deduced by the Lyapunov theorem. In theory, the asymptotic stability of the entire system of sliding surfaces is proven and the parameter boundaries of the subsystem sliding surfaces are given. Simulation results show the feasibility of this control method through two typical SIMO under-actuated systems.

Źródło:

Control and Cybernetics; 2008, 37, 1; 159-175
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 8.

Tytuł:

ANFIS-based PID continuous sliding mode controller for robot manipulators in joint space

Autorzy:

Elawady, Wael M.
Asar, Mohammed F.
Sarhan, Amany M.

Powiązania:

https://bibliotekanauki.pl/articles/1839129.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

PID
continuous sliding mode control
ANFIS
uncertainties
robot

Opis:

This paper presents a feasible design for a con- trol algorithm to synthesize an adaptive neuro-fuzzy inference system-based PID continuous sliding mode control system (ANFIS- PIDCSMC) for adaptive trajectory tracking control of the rigid robot manipulators (RRMs) in the joint space. First, a PID sliding mode control algorithm with sliding surface dynamics-based continuous proportional-integral (PI) control action (PIDSMC-SSDCPI) is presented. The global stability conditions are formulated in terms of Lyapunov full quadratic form such that the robot system output can track the desired reference output. Second, to increase the control system robustness, the PI control action in the PIDSMC- SSDCPI controller is supplanted by an ANFIS control signal to provide a control approach that can be termed adaptive neuro-fuzzy inference system-based PID continuous sliding mode control system (ANFIS-PIDCSMC). For the proposed control algorithm, numerical simulations using the dynamic model of RRM with uncertainties and external disturbances show high quality and effectiveness of the adopted control approach in high-speed trajectory tracking control problems. The simulation results that are compared with the results, obtained for the traditional controllers (standalone PID and traditional sliding mode controller (TSMC)), illustrate the fact that the tracking control behavior of the robot system achieves acceptable tracking performance.

Źródło:

Control and Cybernetics; 2019, 48, 4; 525-555
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 9.

Tytuł:

Neural Network based control of Robot Manipulator

Autorzy:

Ohri, Arnav
Salim, Salim

Powiązania:

https://bibliotekanauki.pl/articles/1075537.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

RBF Neural Network
Robotic Manipulator
Sliding Mode Control

Opis:

This article proposes an RBFNN (Radial Basis Function Neural Network) and sliding mode based controller to manipulate the robot manipulator. The technique used has been based on a sliding mode control approach that can drive the system towards a sliding surface by Gaussian radial basis function neural network based tuned-controller.

Źródło:

World Scientific News; 2019, 121; 9-16
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 10.

Tytuł:

Design and implementation of improved sliding mode controller on 6R manipulator

Autorzy:

Korayem, M. H.
Nekoo, S. R.
Khademi, A.
Abdollahi, F.

Powiązania:

https://bibliotekanauki.pl/articles/280702.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

improved sliding mode control
chattering
DLCC
hardware implementation

Opis:

In this work, we present an improved sliding mode control (ISMC) technique designed and implemented for control of 6R manipulator. Sliding mode control (SMC) is a well-known nonlinear robust method for controlling systems in the presence of uncertainties and disturbances and systems with complex dynamics as in manipulators. Despite this good property, it is difficult to implement this method for the manipulator with a complex structure and more than three degree-of-freedom because of the complicated and massive equation and chattering phenomenon as a property of SMC in control inputs. Here, the chattering phenomenon is eliminated by using an effective algorithm called ISMC and implemented to 6R manipulator by using a low-cost control board based on an ARM microcontroller with high accuracy and memory. The carrying load is considered as the uncertainty for the manipulator, while the dynamic load carrying capacity (DLCC) is considered as a robot performance criterion showing robustness of the controller. The results of simulations and experiments show that the proposed approach has a good performance and is suitable and practical to be applied for manipulators.

Źródło:

Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 265-280
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 11.

Tytuł:

Ship trajectory tracking control system design based on sliding mode control algorithm

Autorzy:

Liu, Y.
Bu, R.
Gao, X.

Powiązania:

https://bibliotekanauki.pl/articles/259621.pdf

Data publikacji:

2018

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

LOS
ship trajectory
tracking control system
sliding mode control

Opis:

The paper reports the design and tests of the planar autopilot navigation system in the three-degree-of-freedom (3-DOF) plane (surge, sway and yaw) for a ship. The aim of the tests was to check the improved maneuverability of the ship in open waters using the improved nonlinear control algorithm, developed based on the sliding mode control theory for the ship-trajectory tracking problem of under-actuated ships with static constraints, actuator saturation, and parametric uncertainties. With the integration of the simple increment feedback control law, the dynamic control strategy was developed to fulfill the under-actuated tracking and stabilization objectives. In addition, the LOS (line of sight) guidance system was applied to control the motion path, whereas the sliding mode controller was used to emulate the rudder angle and propeller rotational speed control. Firstly, simulation tests were performed to verify the validity of the basic model and the tracking control algorithm. Subsequently, full scale maneuverability tests were done with a novel container ship, equipped with trajectory tracking control and sliding mode controller algorithm, to check the dynamic stability performance of the ship. The results of the theoretical and numerical simulation on a training ship verify the invariability and excellent robustness of the proposed controller, which: effectively eliminates system chattering, solves the problem of lateral drift of the ship, and maintains the following of the trajectory while simultaneously achieving global stability and robustness.

Źródło:

Polish Maritime Research; 2018, 3; 26-34
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 12.

Tytuł:

Stability analysis of sliding-mode feedback control

Autorzy:

Clarke, F. H.
Vinter, R. B.

Powiązania:

https://bibliotekanauki.pl/articles/970887.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

sliding-mode control
discontinuous control
Lyapunov functions
stabilization
robustness

Opis:

This paper provides new analytic tools leading to the first rigorous stability and robustness analysis of sliding-mode feedback controllers. Unrestrictive conditions are given, under which these controllers are stabilizing in the presence of large disturbances, conditions invoke the existence of two Lyapunov-type functions, the first associated with passage to the sliding set in finite time, and the second with convergence to the desired state. In this approach, account is taken, from the outset, of implementational constraints. We provide a framework for establishing stability and robustness of the closed-loop system, for a variety of implementation schemes. We illustrate our results by means of two examples of the type frequently encountered in the sliding-mode literature.

Źródło:

Control and Cybernetics; 2009, 38, 4A; 1169-1192
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 13.

Tytuł:

Quasi-Sliding Mode Control of Discrete-Time Systems

Autorzy:

Bartoszewicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/908266.pdf

Data publikacji:

1999

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

sterowanie
system dyskretny
sliding-mode control
discrete-time systems

Opis:

A reaching law approach to the design of discrete-time quasi-sliding mode control systems is considered. First the required position of the system representative point with reference to the sliding plane is specified, and then novel control strategies, which drive the system in such a way that the position actually changes according to the specification, are proposed. The strategies are linear and consequently the undesirable chattering and high-frequency switching between different values of the control signal are avoided. Furthermore, the state of the controlled system is driven to the narrowest possible band around the sliding plane. The strategies, when compared with previously published results, are simpler and they guarantee favourable performance of the controlled systems while using essentially reduced control effort.

Źródło:

International Journal of Applied Mathematics and Computer Science; 1999, 9, 4; 801-810
1641-876X
2083-8492

Pojawia się w:

International Journal of Applied Mathematics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 14.

Tytuł:

Research on beam supply control strategy based on sliding mode control

Autorzy:

Zhang, Hao
Dong, Haiying
Zhang, Baoping
Wu, Tong
Chen, Changwen

Powiązania:

https://bibliotekanauki.pl/articles/141014.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

beam supply
DC/DC converter
robustness
sliding mode control

Opis:

In the hybrid multiple H-bridge topology of beam supply, the load change of a DC/DC full-bridge converter can greatly affect the output voltage during onsite operation. An improved sliding mode control (SMC) strategy is thus proposed in this paper, where the rate of switching control is added to the law of system equivalent control to create a law that can realize a complete sliding mode control. Considering the special operating conditions of the load can have an influence on the performance of the controller, the impact of uncertainty existing in onsite conditions is suppressed with the proposed strategy utilized. The validity of the proposed strategy, finally, is verified by simulation, which proves the outperformance of the system in both robustness and dynamics.

Źródło:

Archives of Electrical Engineering; 2020, 69, 2; 349-364
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 15.

Tytuł:

Gaussian process dynamic modeling and backstepping sliding mode control for magnetic levitation system of maglev train

Autorzy:

Sun, Yougang
Wang, Sumei
Lu, Yang
Xu, Junqi

Powiązania:

https://bibliotekanauki.pl/articles/2086959.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

maglev train
Gaussian process
sliding mode control
parameter perturbations

Opis:

The maglev trains are strongly nonlinear and open-loop unstable systems with external disturbances and parameters uncertainty. In this paper, the Gaussian process method is utilized to get the dynamic parameters, and a backstepping sliding mode controller is proposed for magnetic levitation systems (MLS) of maglev trains. That is, for a MLS of a maglev train, a nonlinear dynamic model with accurate parameters is obtained by the Gaussian process regression method, based on which a novel robust control algorithm is designed. Specifically, the MLS is divided into two sub-systems by a backstepping method. The inter virtual control inputs and the Lyapunov function are constructed in the first sub-system. For the second sub-system, the sliding mode surface is constructed to fulfil the design of the whole controller to asymptotically regulate the airgap to a desired trajectory. The stability of the proposed control method is analyzed by the Lyapunov method. Both simulation and experimental results are included to illustrate the superior performance of the presented method to cope with parameters perturbations and external disturbance.

Źródło:

Journal of Theoretical and Applied Mechanics; 2022, 60, 1; 49--62
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 16.

Tytuł:

Linear Speed Control for Multi-Machine system Using Fuzzy-Sliding Mode

Autorzy:

Bouchiba, B.
Hazzab, A.
Glaoui, H.
Med-Karim, F.
Bousserhane, I. K.
Sicard, P.

Powiązania:

https://bibliotekanauki.pl/articles/384749.pdf

Data publikacji:

2012

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

multi-motors system
fuzzy logic
sliding mode control
MIMO

Opis:

In this contribution, a control scheme based on multi input multi output Fuzzy Sliding Mode control (MIMOFSMC) for linear speed regulation of multi-motors system is proposed. Once the decoupled model of the multi- motors system is obtained, a smooth control function with a threshold was chosen to indicate how far the state from to the sliding surface is. However, the magnitude of this control function depends closely on the upper bound of uncertainties, and this generates chattering. So, this magnitude has to be chosen with great care to obtain high performances. Usually the upper bound of uncertainties is difficult to known before motor operation, so, a Fuzzy Sliding Mode controller is investigated to solve this difficulty; a simple Fuzzy inference mechanism is used to reduce the chattering phenomenon by simple adjustments. A simulation study is carried out and shows that the proposed controller has great potential for use as an alternative to the conventional sliding mode contro.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 1; 3-7
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 17.

Tytuł:

Two cascaded and extended kalman filters combined with sliding mode control for sustainable management of marine fish stocks

Autorzy:

Benz, Katharina
Rech, Claus
Mercorelli, Paolo
Sergiyenko, Oleg

Powiązania:

https://bibliotekanauki.pl/articles/1837383.pdf

Data publikacji:

2020

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

Lotka‐Volterra model
sliding mode control
Extended Kalman Filter

Opis:

This paper deals with a possible approach to controlling marine fish stocks using the prey‐predator model described by the Lotka‐Volterra equations. The control strategy is conceived using the sliding mode control (SMC) approach which, based on the Lyapunov theorem, offers the possibility to track desired functions, thus guaranteeing the stability of the controlled system. One of the most important aspects of this model is the identification of some parameters which characterizes the model. In this work two cascaded and Extended Kalman Filters (EKFs) are proposed to estimate them in order to be utilized in SMC. This approach can be used for sustainable management of marine fish stocks: through the developed algorithm, the appropriate number of active fishermen and the suitable period for fishing can be determined. Computer simulations validate the proposed approach.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 3; 28-35
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 18.

Tytuł:

Effects of sliding surface on the performances of adaptive sliding mode slip ratio controller for a HEV

Autorzy:

Dash, B. K.
Subudhi, B.

Powiązania:

https://bibliotekanauki.pl/articles/229381.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

sliding mode control
slip ratio control
hybrid electric vehicle
sliding surface
ABS

Opis:

Slip ratio control of a ground vehicle is an important concern for the development of antilock braking system (ABS) to avoid skidding when there is a transition of road surfaces. In the past, the slip ratio models of such vehicles were derived to implement ABS. It is found that the dynamics of the hybrid electric vehicle (HEV) is nonlinear, time varying and uncertain as the tire-road dynamics is a nonlinear function of road adhesion coefficient and wheel slip. Sliding mode control (SMC) is a robust control paradigm which has been extensively used successfully in the development of ABS of a HEV. But the SMC performance is influenced by the choice of sliding surface. This is due to the discontinuous switching of control force arising in the vicinity of the sliding surface that produces chattering. This paper presents a detailed study on the effects of different sliding surfaces on the performances of sliding mode based adaptive slip ratio control applied to a HEV.

Źródło:

Archives of Control Sciences; 2013, 23, 2; 187-203
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 19.

Tytuł:

Dead-beat and reaching-law-based sliding-mode control of perishable inventory systems

Autorzy:

Ignaciuk, P.
Bartoszewicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/202382.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

sliding-mode control
inventory control
perishable inventories
discrete-time control systems

Opis:

In this paper we consider the problem of efficient control of inventory systems with perishable goods. In the analyzed setting the deteriorating stock at a distribution center used to fulfill unknown, time-varying demand is replenished with delay from a supply source. The challenging issue is to achieve the high service level with minimum costs when the replenishment orders are procured with lead-time delay spanning multiple review periods. On the contrary to the typical heuristic approaches, we apply formal methodology based on discrete-time sliding-mode (SM) control. The proposed SM controller with the sliding plane selected for a dead-beat scheme ensures that the maximum service level is obtained in the system with arbitrary delay and any bounded demand pattern. In order to account for the supplier capacity limitations in the systems with input constraints, we also develop an alternative control strategy based on reaching law. Both controllers achieve a given service level with smaller holding costs and reduced order-to-demand variance ratio as compared to the classical order-up-to policy.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 1; 39-49
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 20.

Tytuł:

Adaptive fuzzy-sliding mode controller for trajectory tracking control of quad-rotor

Autorzy:

Simoud, Lahcen
Kadri, Boufeldja
Bousserhane, Ismail Khalil

Powiązania:

https://bibliotekanauki.pl/articles/384825.pdf

Data publikacji:

2020

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

quadrotor UAV
sliding mode control
adaptive PD-Slidng mode controller
fuzzy PD-sliding mode

Opis:

This paper deals with the design of an adaptive-fuzzy-PD-Sliding mode controller to achieve stabilization of a quadrotor aircraft in the presence of wind disturbance. Firstly, the dynamic system modeling is carried out using Euler-Lagrange formalism. Then, an adaptive PD-sliding mode control system with an integral-operation switching surface is investigated for quadrotor desired trajectory tracking. Finally, an adaptive fuzzy-PD-sliding mode controller is proposed to achieve control objectives and system stabilization where the fuzzy logic system used to dynamically control parameters settings of the PD-sliding mode equivalent control law. Effectiveness and robustness of the proposed control scheme is verified through simulation results taking into account external disturbances. The simulation results of a quadrotor aircraft control with the proposed controller demonstrate the high performance during flight such as null tracking error and robustness in the presence of external disturbances.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 2; 15-24
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 21.

Tytuł:

Robust Flow Controllers for a Single Virtual Circuit in Data Transmission Networks with Lossy Links

Autorzy:

Bartoszewicz, A.
Leśniewski, P.

Powiązania:

https://bibliotekanauki.pl/articles/108780.pdf

Data publikacji:

2012

Wydawca:

Społeczna Akademia Nauk w Łodzi

Tematy:

data transmission networks
congestion control
sliding-mode control
discrete-time systems

Opis:

The paper concerns an application of regulation theory methods to modeling and effective control of connection-oriented data transmission networks. In particular the problem of congestion control in a single virtual circuit of such a network is considered and new discrete-time sliding mode data flow rate controllers are proposed. The controllers are designed in such a way that packet losses are explicitly accounted for. The closed-loop system stability and finitetime error convergence are proved. Moreover, a number of favorable properties of the proposed controllers are stated as theorems, formally proved and verified in a simulation example. It is demonstrated that the proposed controllers guarantee full utilization of the available bandwidth and eliminates the risk of bottleneck node buffer overflow. Application of time-varying sliding hyperplanes helps avoid excessive transmission rates at the beginning of the control process.

Źródło:

Journal of Applied Computer Science Methods; 2012, 4 No. 1; 5-20
1689-9636

Pojawia się w:

Journal of Applied Computer Science Methods

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 22.

Tytuł:

Sliding mode speed control for multi-motors system

Autorzy:

Bouchiba, B.
Hazzab, A.
Glaoui, H.
Med-Karim, F.
Bousserhane, I. K.

Powiązania:

https://bibliotekanauki.pl/articles/384373.pdf

Data publikacji:

2010

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

Multi-Motors systems
sliding mode control
proportional-integral (P1) control

Opis:

Continuous processes in the plastics, textile paper and other industries, require several drives working in synchronism. The aim of this paper is to control speed of the multi motors system, and to maintain a constant mechanical tension between the rollers of the system. Several controllers are considerer, including Proportional-Integral (PI) and sliding-mode control (SMC). Since the PI control method can be applied easily and is widely known, it has an important place in control applications. But this method is insensitive to parameter changes. The advantage of an SMC is its robustness and ability to handle the non-linear behaviour of the system, and is indicated in comparison with traditional proportional-integral (P1) control scheme. Theoretical analysis and simulation results are provided to evaluate the consistency and performances of this control technique (SMC).

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 3; 50-54
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 23.

Tytuł:

Adaptive sliding mode control for ship autopilot with speed keeping

Autorzy:

Liu, Z.

Powiązania:

https://bibliotekanauki.pl/articles/259349.pdf

Data publikacji:

2018

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

surface vessel
speed loss
adaptive control
course keeping
sliding mode control

Opis:

The paper addresses an important issue in surface vessel motion control practice that the ship dynamics and sailing performance can be affected by speed loss. The vessel speed is significantly decreased by the added resistance generated by waves. An adaptive sliding mode course keeping control design is proposed which takes into account uncertain ship dynamics caused by forward speed variations, while avoiding performance compromises under changing operating and environmental conditions. The sliding mode control provides robust performance for time-varying wave disturbances and time-varying changes in ship parameters and actuator dynamics. After combining the unknown but bounded system uncertainties, the design of the adaptation law is obtained which is based on the Lyapunov’s direct method. Simulations on a ship with two rudders illustrate the effectiveness of the proposed solution.

Źródło:

Polish Maritime Research; 2018, 4; 21-29
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 24.

Tytuł:

Improved direct torque control of induction motors using adaptive observer and sliding mode control

Autorzy:

Kouchih, D
Tadjine, M.
Boucherit, M. S.

Powiązania:

https://bibliotekanauki.pl/articles/229910.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

adaptive observer
direct torque control
induction motor
sensorless
sliding mode control

Opis:

This paper presents the synthesis of an adaptive observer which is used for the improvement of the direct torque control of induction motor drives. The observer detects stator flux components in two-phase stationary reference frame, rotor speed and stator resistance by measure of the stator terminal voltages and currents. The observer is adapted using a simple algorithm which does not imply a high computational load. Stability analysis based on Lyapunov theory is performed in order to guarantee the closed loop stability. Simulation tests under load disturbance and stator resistance variation are provided to evaluate the consistency and performance of the proposed control technique in the low and high speeds.

Źródło:

Archives of Control Sciences; 2013, 23, 3; 361-376
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 25.

Tytuł:

Zmiana położenia układu odwróconego wahadła przy użyciu sterowania ślizgowego
Position changing of inverted pendulum system using a sliding mode control

Autorzy:

Tomera, M.

Powiązania:

https://bibliotekanauki.pl/articles/268605.pdf

Data publikacji:

2014

Wydawca:

Politechnika Gdańska. Wydział Elektrotechniki i Automatyki

Tematy:

sterowanie ślizgowe
LQR
odwrócone wahadło
sliding mode control
inverted pendulum

Opis:

W referacie przedstawione zostało sterowanie ślizgowe zastosowane do zmiany położenia wózka w układzie odwróconego wahadła. Obiekt sterowania jest nieliniowy, o dwóch stopniach swobody (kąt ustawienia wahadła i pozycja wózka) i jednym wejściu (siła przyłożona do wózka). Zadanie sterowania polega na takim przemieszczaniu położenia wózka, aby wraz z jego zmianami, pręt wahadła balansował w położeniu pionowym i nie przewrócił się. Model matematyczny obiektu składa się z czterech nieliniowych równań stanu. Sterowanie ślizgowe zazwyczaj stosowane jest do obiektów drugiego rzędu, zapisywanych w postaci zmiennych fazowych. Dlatego też w przypadku układu odwróconego wahadła konieczna była dekompozycja problemu i zastosowane zostało dwuwarstwowe sterowanie ślizgowe. W części równoważnej sterowania rozważone zostały regulatory: liniowo-kwadratowy (LQR) i proporcjonalno-całkującoróżniczkujący (PID), które są powszechnie stosowane do sterowania procesami dynamicznymi. Uzyskane układy sterowania ślizgowego są odporne na wpływ działających zakłóceń. Wyniki badań symulacyjnych pokazują efektywność pracy zaproponowanych struktur układów sterowania.
The paper presents sliding mode control, which was used to change the position of the cart in the inverted pendulum system. The plant of control is non-linear, with two degrees of freedom (the angle of the pendulum and the position of the cart) and one input (force applied to the cart). The task is to control the movement of the cart position to get along with his changes, balancing the pendulum rod in the upright position. The mathematical model of the object consists of four nonlinear equations of state. Sliding mode control is normally applied to the second-order systems, presented in the canonical form. Therefore, in the case of an inverted pendulum system, the decomposition of the problem was necessary and two-layer sliding mode control was applied. In the equivalent part of the control, two controllers were considered: linear quadratic regulator (LQR) and Proportional-Integral-Derivative (PID), which are commonly used to control dynamic processes. The resulting sliding mode control systems are robust to the influence of disturbance input. The results of simulation studies show the effectiveness of the work of the proposed structures of control systems.

Źródło:

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2014, 40; 119-126
1425-5766
2353-1290

Pojawia się w:

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 26.

Tytuł:

Quadrotor UAV control for transportation of cable suspended payload

Autorzy:

Kusznir, Tom
Smoczek, Jarosław

Powiązania:

https://bibliotekanauki.pl/articles/246855.pdf

Data publikacji:

2019

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

transport
UAV
quadrotor
under actuated
cable suspended payload
sliding mode control

Opis:

Payload transportation with UAV’s (Unmanned Aerial Vehicles) has become a topic of interest in research with possibilities for a wide range of applications such as transporting emergency equipment to otherwise inaccessible areas. In general, the problem of transporting cable suspended loads lies in the under actuation, which causes oscillations during horizontal transport of the payload. Excessive oscillations increase both the time required to accurately position the payload and may be detrimental to the objects in the workspace or the payload itself. In this article, we present a method to control a quadrotor with a cable suspended payload. While the quadrotor itself is a nonlinear system, the problem of payload transportation with a quadrotor adds additional complexities due to both input coupling and additional under actuation of the system. For simplicity, we fix the quadrotor to a planar motion, giving it a total of 4 degrees of freedom. The quadrotor with the cable suspended payload is modelled using the Euler-Lagrange equations of motion and then partitioned into translation and attitude dynamics. The design methodology is based on simplifying the system by using a variable transformation to decouple the inputs, after which sliding mode control is used for the translational and pendulum dynamics while a feedback linearizing controller is used for the rotational dynamics of the quadrotor. The sliding mode parameters are chosen so stability is guaranteed within a certain region of attraction. Lastly, the results of the numerical simulations created in MATLAB/Simulink are presented to verify the effectiveness of the proposed control strategy.

Źródło:

Journal of KONES; 2019, 26, 2; 77-84
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 27.

Tytuł:

A new 4-D hyperchaotic system with no equilibrium, its multistability, offset boosting and circuit simulation

Autorzy:

Vaidyanathan, Sundarapandian
Moroz, Irene M.
Sambas, Aceng

Powiązania:

https://bibliotekanauki.pl/articles/229944.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

chaos
chaotic systems
hidden attractors
sliding mode control
circuit design
synchronization

Opis:

A new 4-D dynamical system with hyperchaos is reported in this work. It is shown that the proposed nonlinear dynamical system with hyperchaos has no equilibrium point. Hence, the new dynamical system exhibits hidden hyperchaotic attractor. An in-depth dynamic analysis of the new hyperchaotic system is carried out with bifurcation transition diagrams, multistability analysis, period-doubling bubbles and offset boosting analysis. Using Integral Sliding Mode Control (ISMC), global hyperchaos synchronization results of the new hyperchaotic system are described in detail. Furthermore, an electronic circuit realization of the new hyperchaotic system has been simulated in MultiSim software version 13.0 and the results of which are in good agreement with the numerical simulations using MATLAB.

Źródło:

Archives of Control Sciences; 2020, 30, 3; 575-597
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 28.

Tytuł:

A new multistable double-scroll 4-D hyperchaotic system with no equilibrium point, its bifurcation analysis, synchronization and circuit design

Autorzy:

Vaidyanathan, Sundarapandian
He, Shaobo
Simbas, Aceng

Powiązania:

https://bibliotekanauki.pl/articles/1409110.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

hyperchaos
hyperchaotic systems
hidden attractors
multistability
sliding mode control
circuit design

Opis:

In this work, we have developed a new 4-D dynamical system with hyperchaos and hidden attractor. First, by introducing a feedback input control into the 3-D Ma chaos system (2004), we obtain a new 4-D hyperchaos system with no equilibrium point. Thus, we derive a new hyperchaos system with hidden attractor. We carry out an extensive bifurcation analysis of the new hyperchaos model with respect to the three parameters. We also carry out probability density distribution analysis of the new hyperchaotic system. Interestingly, the new nonlinear hyperchaos system exhibits multistability with coexisting attractors. Next, we discuss global hyperchaos self-synchronization for the new hyperchaos system via Integral Sliding Mode Control (ISMC). As an engineering application, we realize the new 4-D hyperchaos system with an electronic circuit via MultiSim. The outputs of the MultiSim hyperchaos circuit show good match with the numerical MATLAB plots of the hyperchaos model. We also analyze the power spectral density (PSD) of the hyperchaos of the state variables using MultiSim.

Źródło:

Archives of Control Sciences; 2021, 31, 1; 99-128
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 29.

Tytuł:

Performance analysis of the sensorless adaptive sliding-mode neuro-fuzzy control of the induction motor drive with MRAS-type speed estimator

Autorzy:

Orłowska-Kowalska, T.
Dybkowski, M.

Powiązania:

https://bibliotekanauki.pl/articles/201110.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

electrical drive
induction motor
adaptive control
sliding mode control
neuro-fuzzy control
sensorless control

Opis:

This paper discusses a model reference adaptive sliding-mode control of the sensorless vector controlled induction motor drive in a wide speed range. The adaptive speed controller uses on-line trained fuzzy neural network, which enables very fast tracking of the changing speed reference signal. This adaptive sliding-mode neuro-fuzzy controller (ASNFC) is used as a speed controller in the direct rotor-field oriented control (DRFOC) of the induction motor (IM) drive structure. Connective weights of the controller are trained on-line according to the error between the actual speed of the drive and the reference model output signal. The rotor flux and speed of the vector controlled induction motor are estimated using the model reference adaptive system (MRAS) – type estimator. Presented simulation results are verified by experimental tests performed on the laboratory-rig with DSP controller.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 1; 61-70
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 30.

Tytuł:

Sliding mode speed control of an induction motor drive using time-varying switching line

Autorzy:

Tarchała, G.

Powiązania:

https://bibliotekanauki.pl/articles/1193307.pdf

Data publikacji:

2017

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

sliding mode control
equivalent control
induction motor
speed controller
time-varying switching line

Opis:

An equivalent sliding mode control method of an induction motor speed has been discussed. The control signal consists of two parts: a continuous and discontinuous one. Very good dynamical response of the drive system has been obtained, which however changes influenced by external and parametric disturbances occurring under various operation conditions. In order to ensure identical dynamic performance of the speed transients and system robustness during the switching line reaching phase, regardless of external and parametric disturbances, the time-varying switching line is proposed. The simulation results have been validated by experimental tests of the induction motor drive system.

Źródło:

Power Electronics and Drives; 2017, 2, 37/1; 105-120
2451-0262
2543-4292

Pojawia się w:

Power Electronics and Drives

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 31.

Tytuł:

Sliding mode tracking control for unmanned helicopter using extended disturbance observer

Autorzy:

Ullah, Ihsan
Pei, Hai-Long

Powiązania:

https://bibliotekanauki.pl/articles/229728.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

unmanned helicopter
external disturbances
sliding mode control
extended disturbance observer
mismatched uncertainty

Opis:

This paper presents a robust control technique for small-scale unmanned helicopters to track predefined trajectories (velocities and heading) in the presence of bounded external disturbances. The controller design is based on the linearized state-space model of the helicopter. The multivariable dynamics of the helicopter is divided into two subsystems, longitudinallateral and heading-heave dynamics respectively. There is no strong coupling between these two subsystems and independent controllers are designed for each subsystem. The external disturbances and model mismatch in the longitudinal-lateral subsystem are present in all (matched and mismatched) channels. This model mismatch and external disturbances are estimated as lumped disturbances using extended disturbance observer and an extended disturbance observer based sliding mode controller is designed for it to counter the effect of these disturbances. In the case of heading-heave subsystem, external disturbances and model mismatch only occur in matched channels so a second order sliding mode controller is designed for it as it is insensitive to matched uncertainties. The control performance is successfully tested in Simulink.

Źródło:

Archives of Control Sciences; 2019, 29, 1; 169-199
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 32.

Tytuł:

An elbow planar manipulator driven by induction motors using sliding mode control for current loop

Autorzy:

Diniz, E. C. de
Júnior, A. B. S.
Honório, D. A.
Barreto, L. H. S. C.
Reis, L. L. N. dos

Powiązania:

https://bibliotekanauki.pl/articles/206213.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

sliding mode control
induction motor drives
manipulators
digital signal processor
PI controllers

Opis:

The control of a planar elbow manipulator driven by a squirrel-cage induction motor using sliding mode control (SMC) is presented in this paper. The modeling of the manipulator mechanical coupling as a load applied to the induction motor shaft is developed. This has direct influence on both dq currents, which are chosen as the sliding manifold instead of controlling both mechanical and electrical parts as individual processes like most industrial manipulators do. Conventional proportional-integral (PI) controllers are used for each loop, implying easy design procedure and implementation with low computational effort. The system can then be implemented by using a digital signal processor (DSP) and applied in industrial environments. Simulation and experimental results on a real manipulator are shown to validate the proposed control scheme. The results show that there is low steady-state error for the manipulator position.

Źródło:

Control and Cybernetics; 2012, 41, 2; 395-413
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 33.

Tytuł:

Observer design estimating the propofol concentration in PKPD model with feedback control of anesthesia administration

Autorzy:

Ilyas, Muhammad
Khan, Awais
Khan, Muhammad Abbas
Xie, Wei
Riaz, Raja Ali
Khan, Yousaf

Powiązania:

https://bibliotekanauki.pl/articles/2106507.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

pharmacokinetic models
pharmacodynamic model
bispectral index monitor
observer design
sliding mode control

Opis:

Propofol infusion in anesthesia administration requires continual adjustment in the manual infusion system to regulate the hypnosis level. Hypnotic level is based on Bispectral Index Monitor (BIS) showing the cortical activity of the brain scaled between 0 to 100. The new challenging aspect of automation in anaesthesia is to estimate the concentration of hypnotic drugs in different compartments of the body including primary, rapid peripheral (muscle), slow peripheral (bones, fat) and effect site (brain) compartment based on Pharmacokinetics (PK) and Pharmacodynamics (PD) model. This paper aimed to regulate the hypnosis level with estimating the Propofol concentrations using a linear observer in feedback control strategy based on Integral Super-Twisting Sliding Mode Controller (ISTSMC). The drug concentration in plasma of the silico patients accurately estimated in nominal transient. The results show that tracking errors between the actual output in form of BIS level and linearized output nearly approaches to zero in the maintenance phase of anesthesia to ensure the controller response on sliding phase with optimum performances by achieving desired hypnotic level 50 on BIS. The robustness of control strategy is further ensured by adding measurement noise of electromagnetic environment of operation theatre distracting signal quality index of the output BIS level.

Źródło:

Archives of Control Sciences; 2022, 32, 1; 85--103
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 34.

Tytuł:

Strategie sterowania ślizgowego z ruchomą hiperpowierzchnią przełączeń - krótki przegląd
Sliding Mode Control Strategies with a Time-Varying Switching Hypersurface - a Brief Survey

Autorzy:

Latosiński, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/275701.pdf

Data publikacji:

2020

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

teoria sterowania
sterowanie ślizgowe
ruchome hiperpowierzchnie przełączeń
control theory
sliding mode control
time-varying sliding hypersurface

Opis:

Strategie sterowania ślizgowego są cenione za swoją całkowitą niewrażliwość na klasę zakłóceń i niepewności modelu. Uzyskanie tej właściwości jest możliwe przez sprowadzenie punktu opisującego dynamikę układu na pewną hiperpowierzchnię przełączeń zdefiniowaną w przestrzeni stanów. W początkowym etapie sterowania, w którym punkt opisujący zbliża się do tej hiperpowierzchni, układ pozostaje wrażliwy na zakłócenia, co utrudnia projektowanie skutecznych strategii sterowania ślizgowego. Aby zapewnić odporność układu na zakłócenia i niepewności modelu na wszystkich etapach procesu sterowania liczni autorzy zaproponowali zastosowanie ruchomych hiperpowierzchni przełączeń. Celem niniejszego artykułu przeglądowego jest przedstawienie najważniejszych osiągnięć z zakresu sterowania ślizgowego z wykorzystaniem takich hiperpowierzchni. Omówione są pionierskie prace proponujące zastosowanie ruchomych hiperpowierzchni przełączeń oraz przedstawione są metody ich projektowania. Następnie podkreślone są najważniejsze osiągnięcia z zakresu sterowania ślizgowego wykorzystującego ruchome hiperpowierzchnie przełączań zarówno dla układów ciągłych jak i dyskretnych.
Sliding mode control strategies are valued for their total insensitivity to the class of disturbances and uncertainty of the model. Obtaining this property is possible by bringing a point describing the dynamics of the system to a certain switching hypersurface defined in the state space. At the initial stage of control, where the description point approaches this hypersurface, the system remains sensitive to interferences, which hinders the design of effective sliding mode control strategies. To ensure the system’s resistance to interference and model uncertainty at all stages of the control process, many authors proposed the use of mobile switching hypersurfaces. The purpose of this review article is to present the most important achievements in the area of sliding mode control using such hypersurfaces. Discussed are pioneering works proposing the use of mobile switching hypersurfaces and methods of their design are presented. Next, the most important achievements in the area of sliding mode control using movable switching hypersurfaces for both continuous and discrete systems are highlighted.

Źródło:

Pomiary Automatyka Robotyka; 2020, 24, 1; 41-47
1427-9126

Pojawia się w:

Pomiary Automatyka Robotyka

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 35.

Tytuł:

Application of fractional calculus in iterative sliding mode synchronization control

Autorzy:

Zhang, Xin
Wen-Ru, Lu
Zhang, Liang
Xu, Wen-Bo

Powiązania:

https://bibliotekanauki.pl/articles/141629.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

cross-coupling control
fractional calculus
iterative learning control
PD control
robot arm
sliding mode control

Opis:

In order to control joints of manipulators with high precision, a position tracking control strategy combining fractional calculus with iterative learning control and sliding mode control is proposed for the control of a single joint of manipulators. Considering the coupling between joints of manipulators, a fractional-order iterative sliding mode crosscoupling control strategy is proposed and the theoretical proof of its progressive stability is given. The paper takes a two-joint manipulator as the research object to verify the control strategy of a single-joint manipulator. The results show that the control strategy proposed in this paper makes the two-joint mechanical arm chatter less and the tracking more accurate. The synchronous control of the manipulator is verified by a three-joint manipulator. The results show that the angular displacement adjustment times of the threejoint manipulator are 0.11 s, 0.31 s and 0.24 s, respectively. 3.25 s > 5 s, 3.15 s of a PD cross-coupling control strategy; 2.85 s, 2.32 s, 4.22 s of a PD iterative cross-coupling control strategy; 0.14 s, 0.33 s, 0.28 s of a fractional-order sliding mode cross-coupling control strategy. The root mean square error of the position error of the designed control strategy is 6.47 × 10−6 rad, 3.69 × 10−4 rad, 6.91 × 10−3 rad, respectively. The root mean square error of the synchronization error is 3.96×10−4 rad, 1.36×10−3 rad, 7.81×10−3 rad, superior to the other three control strategies. The results illustrate the effectiveness of the proposed control method.

Źródło:

Archives of Electrical Engineering; 2020, 69, 3; 499-519
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 36.

Tytuł:

Model Predictive Super-twisting sliding mode control for an autonomous surface vehicle

Autorzy:

Esfahani, Hossein Nejatbakhsh
Szlapczynski, Rafal

Powiązania:

https://bibliotekanauki.pl/articles/260526.pdf

Data publikacji:

2019

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

utonomous Surface Vehicle
Model Predictive Control
Sliding Mode Control
Super-Twisting Algorithm
Chattering Attenuation

Opis:

This paper presents a new robust Model Predictive Control (MPC) algorithm for trajectory tracking of an Autonomous Surface Vehicle (ASV) in presence of the time-varying external disturbances including winds, waves and ocean currents as well as dynamical uncertainties. For fulfilling the robustness property, a sliding mode control-based procedure for designing of MPC and a super-twisting term are adopted. The MPC algorithm has been known as an effective approach for the implementation simplicity and its fast dynamic response. The proposed hybrid controller has been implemented in MATLAB / Simulink environment. The results for the combined Model Predictive Super-Twisting Sliding Mode Control (MP-STSMC) algorithm have shown that it significantly outperforms conventional MPC algorithm in terms of the transient response, robustness and steady state response and presents an effective chattering attenuation in comparison with the Super-Twisting Sliding Mode Control (STSMC) algorithm.

Źródło:

Polish Maritime Research; 2019, 3; 163-171
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 37.

Tytuł:

Chattering attenuation in sliding mode control systems

Autorzy:

Bartoszewicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/206731.pdf

Data publikacji:

2000

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

nieliniowy system sterowania
nonlinear control system
compensation
control nonlinearities
sliding mode control
variable structure systems

Opis:

In this paper sliding mode control systems are considered and a new technique to attenuate chattering is proposed. The technique employs simple, first-order dynamical devices, i.e. an integrator or a low-pass filter, to compensate in part for unknown and changing disturbance. As a result of this compensation, the magnitude of the discontinuous control term is essentially reduced. The term does not depend on the admissible disturbance or its change rate, but only on the uncertainty of the disturbance at the initial time t = t[sub o]. The technique proposed in this paper attenuates the undesirable chattering without any deterioration of the system performance.

Źródło:

Control and Cybernetics; 2000, 29, 2; 585-584
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 38.

Tytuł:

Adaptive robust PID sliding control of a liquid level system based on multi-objective genetic algorithm optimization

Autorzy:

Mahmoodabadi, M. J.
Taherkhorsandi, M.
Talebipour, M.

Powiązania:

https://bibliotekanauki.pl/articles/206697.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

sliding mode control
PID control
adaptive control
genetic algorithm
multi-objective optimization
liquid level system

Opis:

Adaptive robust PID sliding mode control optimized by means of multi-objective genetic algorithm is presented in this paper to control a three-tank liquid level system with external disturbances. While PID constitutes a reliable and stable controller, when compared to sliding mode control (SMC); robustness and tracking performance of SMC are higher than those of the PID control. To use the unique features of both controllers, optimal sliding mode control is executed in terms of a supervisory controller to enhance the performance of optimal adaptive PID control and to provide the necessary control inputs. After the design of the control law, control coefficients of all four involved controllers are optimized by using the multi-objective genetic algorithm so as to minimize errors and the input of the controller. Simulations illustrate that the adaptive robust PID sliding controller based on multi-objective genetic algorithm optimization provides a superior response in comparison to the results obtained separately by PID control, sliding mode control, and adaptive PID control, respectively.

Źródło:

Control and Cybernetics; 2017, 46, 3; 227-246
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 39.

Tytuł:

Design of passive fault-tolerant controllers of a quadrotor based on sliding mode theory

Autorzy:

Merheb, A. R.
Noura, H.
Bateman, F.

Powiązania:

https://bibliotekanauki.pl/articles/331358.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

quadrotor UAV control
fault tolerant control
sliding mode control
cascaded SMC
bio inspired gain tuning

Opis:

In this paper, sliding mode control is used to develop two passive fault tolerant controllers for an AscTec Pelican UAV quadrotor. In the first approach, a regular sliding mode controller (SMC) augmented with an integrator uses the robustness property of variable structure control to tolerate partial actuator faults. The second approach is a cascaded sliding mode controller with an inner and outer SMC loops. In this configuration, faults are tolerated in the fast inner loop controlling the velocity system. Tuning the controllers to find the optimal values of the sliding mode controller gains is made using the ecological systems algorithm (ESA), a biologically inspired stochastic search algorithm based on the natural equilibrium of animal species. The controllers are tested using SIMULINK in the presence of two different types of actuator faults, partial loss of motor power affecting all the motors at once, and partial loss of motor speed. Results of the quadrotor following a continuous path demonstrated the effectiveness of the controllers, which are able to tolerate a significant number of actuator faults despite the lack of hardware redundancy in the quadrotor system. Tuning the controller using a faulty system improves further its ability to afford more severe faults. Simulation results show that passive schemes reserve their important role in fault tolerant control and are complementary to active techniques.

Źródło:

International Journal of Applied Mathematics and Computer Science; 2015, 25, 3; 561-576
1641-876X
2083-8492

Pojawia się w:

International Journal of Applied Mathematics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 40.

Tytuł:

Bifurcation analysis, circuit design and sliding mode control of a new multistable chaotic population model with one prey and two predators

Autorzy:

Vaidyanathan, Sundarapandian
Benkouider, Khaled
Sambas, Aceng
Darwin, P.

Powiązania:

https://bibliotekanauki.pl/articles/27312005.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Tematy:

population biology system
chaos
chaotic systems
synchronization
sliding mode control
Multisim
circuit simulation

Opis:

In this work, we report a new chaotic population biology system with one prey and two predators. Our new chaotic population model is derived by introducing two nonlinear interaction terms between the prey and predator-2 to the Samardzija-Greller population biology system (1988). We show that the new chaotic population biology system has a greater value of Maximal Lyapunov Exponent (MLE) than the Maximal Lyapunov Exponent (MLE) of the Samardzija-Greller population biology system (1988). We carry out a detailed bifurcation analysis of the new chaotic population biology system with one prey and two predators. We also show that the new chaotic population biology model exhibits multistability with coexisting chaotic attractors. Next, we use the integral sliding mode control (ISMC) for the complete synchronization of the new chaotic population biology system with itself, taken as the master and slave chaotic population biology systems. Finally, for practical use of the new chaotic population biology system, we design an electronic circuit design using Multisim (Version 14.0).

Źródło:

Archives of Control Sciences; 2023, 33, 1; 127--153
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 41.

Tytuł:

Research on disturbance rejection control strategy of vehicle drive axle loading test bench

Autorzy:

Yu, Hui
Wang, Hui
Li, Nanqi
Zhao, Guochao

Powiązania:

https://bibliotekanauki.pl/articles/2086968.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

loading test-bed
disturbance
adaptive backstepping sliding mode control
overshoot
sinusoidal tracking error

Opis:

Aiming at the problems of parameter disturbance and coupling disturbance in a vehicle drive axle loading test-bed, this paper used the adaptive backstepping sliding mode control (ABSMC) strategy to design the controller for the speed and torque system. The effectiveness of the controller has been verified by simulation and an experiment. The results show that the equivalent moment of inertia is increased by 5 times, and the step response overshoot of the speed system is 4.1%. By adding a random disturbance, the sinusoidal tracking errors of the speed and torque systems are 0.05 r/min and 0.09Nm, respectively.

Źródło:

Journal of Theoretical and Applied Mechanics; 2022, 60, 2; 227--238
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 42.

Tytuł:

Przegląd reguł osiągania trybu ślizgowego w układach dyskretnych
Review of Discrete Time Sliding Mode Reaching Laws

Autorzy:

Leśniewski, Piotr

Powiązania:

https://bibliotekanauki.pl/articles/275580.pdf

Data publikacji:

2019

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

dyskretne sterowanie ślizgowe
reguły osiągania trybu ślizgowego
discrete sliding mode control
reaching laws

Opis:

Stosując znane reguły osiągania trybu ślizgowego, rozpoczyna się działanie od określenia pożądanego przebiegu zmiennej ślizgowej. Następnie projektowany jest regulator gwarantujący, że zmienna ślizgowa układu będzie podążać za wybranym przebiegiem. Przewagą tej metody nad „klasycznym” sterowaniem ślizgowym jest zapewnienie lepszej kontroli nad dynamiką układu i spełnienie ograniczeń zmiennych stanu już podczas fazy osiągania trybu ślizgowego. W artykule przedstawiony zostanie przegląd prac naukowych dotyczących reguł osiągania trybu ślizgowego dla układów czasu dyskretnego. Wskazane i omówione zostaną różnice i podobieństwa między przebiegami stosowanymi przez badaczy.
In the reaching law approach one first specifies the desired evolution of the sliding variable. Then, a sliding mode controller that ensures this evolution is derived. The main advantage of this method with respect to “classical” sliding mode control is better control of the system dynamics and state constraints during the reaching phase. In this paper, a review of recent results on discrete time reaching laws is presented. The differences and similarities between them are discussed.

Źródło:

Pomiary Automatyka Robotyka; 2019, 23, 3; 17-25
1427-9126

Pojawia się w:

Pomiary Automatyka Robotyka

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 43.

Tytuł:

A new 4-D hyperchaotic four-wing system, its bifurcation analysis, complete synchronization and circuit simulation

Autorzy:

Vaidyanathan, Sundarapandian
Benkouider, Khaled
Sambas, Aceng
Safaan, Samy Abdelwahab

Powiązania:

https://bibliotekanauki.pl/articles/2175110.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

multistability
Hyperchaos
four-wing systems
hyperchaotic systems
synchronization
sliding mode control
circuit design

Opis:

In this work, we modify the dynamics of 3-D four-wing Li chaotic system (Li et al. 2015) by introducing a feedback controller and obtain a new 4-D hyperchaotic four-wing system with complex properties. We show that the new hyperchaotic four-wing system have three saddle-foci balance points, which are unstable. We carry out a detailed bifurcation analysis for the new hyperchaotic four-wing system and show that the hyperchaotic four-wing system has multistability and coexisting attractors. Using integral sliding mode control, we derive new results for the master-slave synchronization of hyperchaotic four-wing systems. Finally, we design an electronic circuit using MultiSim for real implementation of the new hyperchaotic four-wing system.

Źródło:

Archives of Control Sciences; 2022, 32, 3; 507--534
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 44.

Tytuł:

The optimal design of fractional sliding mode control based on multi-objective genetic algorithms for a two-link flexible manipulator

Autorzy:

Pouya, M.
Pashaki, P. V.

Powiązania:

https://bibliotekanauki.pl/articles/102531.pdf

Data publikacji:

2017

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

fractional calculations
sliding mode control
two-link flexible manipulator
Pareto optimal
genetic algorithm

Opis:

In this paper a novel optimal approach of control strategy is introduced by applying fractional calculus in the structure of sliding mode control for a range of dynamics system liable to ambiguity. So, a fractional sliding mode control was designed for dynamics of the two-link rigid-flexible manipulator. Furthermore, a multi-objective genetic algorithm was proposed in order to find the ideal variable structure of the sliding mode control. Optimal variables were achieved by the optimization of the conventional sliding mode control. Then the performance of both the conventional and the fractional sliding mode control were compared with respect to optimal variables. Results indicated that by applying the optimized fractional sliding mode control, the system’s error was significantly reduced consequently tracking the desired value was done with a higher degree of accuracy and a smoother control action was achieved.

Źródło:

Advances in Science and Technology. Research Journal; 2017, 11, 3; 56-65
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 45.

Tytuł:

High-performance induction motor drive based on adaptive super-twisting sliding mode control approach

Autorzy:

Farhi, Salah Eddine
Sakri, Djamel
Goléa, Noureddine

Powiązania:

https://bibliotekanauki.pl/articles/2042783.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

barrier function
chattering
gains adaptation
induction motor drive
sliding mode control
super twisting

Opis:

This paper proposes two high-order sliding mode algorithms to achieve highperformance control of induction motor drive. In the first approach, the super-twisting algorithm (STA) is used to reduce the chattering effect and to improve control accuracy. The second approach combines the super-twisting algorithm with a quasi-barrier function technique. While the super-twisting algorithm (STA) aims at the chattering reduction, the Barrier super-twisting algorithm (BSTA) aims to eliminate this phenomenon by providing continuous output control signals. The BSTA is designed to prevent the STA gain from being over-estimated by making these gains to decrease and increase according to system’s uncertainties. Stability and finite-time convergence are guaranteed using Lyapunov’s theory. In addition, the two controlled variables, rotor speed, and rotor flux modulus are estimated based on the second-order sliding mode (SOSM) observer. Finally, simulations are carried out to compare the performance and robustness of two control algorithms without adding the equivalent control. Tests are achieved under external load torque, varying reference speed, and parameter variations.

Źródło:

Archives of Electrical Engineering; 2022, 71, 1; 245-263
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 46.

Tytuł:

Control of Unmanned Surface Vehicle along the desired trajectory using improved Line of Sight and estimated sideslip angle

Autorzy:

Li, Ligang
Pei, Zhiyuan
Jin, Jiucai
Dai, Yongshou

Powiązania:

https://bibliotekanauki.pl/articles/1551827.pdf

Data publikacji:

2021

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

curve path following control
surge velocity guidance law
extended state observer
sliding mode control
USV

Opis:

In order to improve the accuracy and robustness of path following control for an Unmanned Surface Vehicle (USV) suffering from unknown and complex disturbances, a variable speed curve path following a control method based on an extended state observer was proposed. Firstly, the effect of the environmental disturbances on the USV is equivalent to an unknown and time-varying sideslip angle, and the sideslip angle is estimated by using the extended state observer (ESO) and compensated in the Line of Sight (LOS) guidance law. Secondly, based on the traditional LOS guidance law, the design of the surge velocity guidance law is added to enable the USV to self-adjust the surge velocity according to the curvature of the curve path, thus further improving the tracking accuracy. Finally, the heading and speed controller of the USV is designed by using a sliding mode control to track the desired heading and speed accurately, and then the path following control of the USV’s curve path is realised. Simulation results verify the effectiveness of the proposed method.

Źródło:

Polish Maritime Research; 2021, 2; 18-26
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 47.

Tytuł:

Pitch and yaw motion control of 2 DoF helicopter subjected to faults using sliding-mode control

Autorzy:

Raghappriya, M.
Kanthalakshmi, S.

Powiązania:

https://bibliotekanauki.pl/articles/2134893.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

fault tolerant control
sliding mode control
reaching law
super-twisting
sensor
actuator faults
component faults

Opis:

This paper presents a fault-tolerant control scheme for a 2 DOF helicopter. The 2 DOF helicopter is a higher-order multi-input multi-output system featuring non-linearity, cross-coupling, and unstable behaviour. The impact of sensor, actuator, and component faults on such highly complex systems is enormous. This work employs sliding mode control, which is based on reaching and super-twisting laws, to handle the problem of fault control. Simulation tests are carried out to show the effectiveness of the algorithms. Various performance metrics are analyzed and the results show SMC based on super-twisting law provides better control with less chattering. The stability of the closed-loop system is mathematically assured, in the presence of faults, which is a key contribution of this research.

Źródło:

Archives of Control Sciences; 2022, 32, 2; 359--381
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 48.

Tytuł:

Sterowanie ślizgowe w zastosowaniu do serwonapędu elektrohydraulicznego
Sliding Mode Control for the Electro-hydraulic Servo System

Autorzy:

Winnicki, A.
Olszewski, M.

Powiązania:

https://bibliotekanauki.pl/articles/274946.pdf

Data publikacji:

2010

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

serwonapęd elektrohydrauliczny
sterowanie ślizgowe
sterowanie odporne
electro-hydraulic servo system
sliding mode control
robust control

Opis:

W artykule przedstawiono model sterowania ślizgowego SMC (ang. Sliding Mode Control) w zastosowaniu do elektrohydraulicznego układu serwonapędu. Algorytm ślizgowy bardzo dobrze nadaje się do sterowania obiektami nieliniowymi oraz charakteryzuje się dużą odpornością na zakłócenia. Dużą niedogodnością sterowania ślizgowego są efekty częstych przełączeń sygnału sterowania (ang. Chattering Phenomena), co może prowadzić do powstawania drgań elementów wykonawczych i wpływać niekorzystnie na trwałość napędzanego urządzenia. W artykule zaprezentowano alternatywne podejście, które w znacznym stopniu eliminuje efekt częstych przełączeń.
This paper presents the design a variable structure controller by Sliding Mode Control techniques for the electro-hydraulic servo systems. This approach enables to compensate the inherent non-linearities of the actuator and to reject external constant disturbances. An unfavorable effects of SMC are frequent switches of the control signal. Sigmoidal functions are used in lieu of signum functions to reduce chattering phenomena. Simulation results verify the validity of the proposed technique to compensate the frequent switches in servo system.

Źródło:

Pomiary Automatyka Robotyka; 2010, 14, 11; 116-119
1427-9126

Pojawia się w:

Pomiary Automatyka Robotyka

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 49.

Tytuł:

Comparative Study of Optimised Artificial Intelligence Based First Order Sliding Mode Controllers for Position Control of a DC Motor Actuator

Autorzy:

Nyong-Bassey, B. E.
Akinloye, B.

Powiązania:

https://bibliotekanauki.pl/articles/385114.pdf

Data publikacji:

2016

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

adaptive fuzzy control
DC motor position control
genetic algorithm
particle swarm optimization (PSO)
sliding mode control

Opis:

This paper aims at critically reviewing various sliding mode control measures applied to Permanent Magnet DC Motor actuator for position control. At first, a hybrid sliding mode controller was examined with its advantages and disadvantages. Then, the smooth sliding mode controller in the same manner. The shortcomings of the two methods were overcome by proper switch design and also using tanh-sinh hyperbolic function. The sliding mode controller switches on when either disturbance or noise is detected. Genetic Algorithm Computational tuning technique is employed to optimize the gains of the controllers for optimal response.The performance of the proposed controller architecture, as well as the reviewed controllers, have been compared for performance evaluation with respect to several operating conditions. This includes load torque disturbance injection, noise injection in a feedback loop, motor nonlinearity exhibited by parameters variation, and a step change in reference input demand.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2016, 10, 3; 58-71
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 50.

Tytuł:

Robust trajectory tracking control of underactuated surface vehicles with prescribed performance

Autorzy:

Wang, Shasha
Tuo, Yulong

Powiązania:

https://bibliotekanauki.pl/articles/1573775.pdf

Data publikacji:

2020

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

robust sliding mode control
prescribed performance
guaranteed transient performance
trajectory tracking
underactuated surface vehicle

Opis:

In this paper, a robust sliding mode tracking controller with prescribed performance is developed for an underactuated surface vehicle (USV) with time-varying external disturbances. Firstly, to guarantee the transient and steadystate performance of the closed-loop system, the error transformation technique is presented. Further, the design of the prescribed performance function implements predefined tracking performance constraints, which eliminate the requirement for prior knowledge about the initial errors. Then, a Lyapunov stability synthesis shows that all closed-loop signals remain bounded and the tracking errors remain strictly within the predefined bounds. Finally, simulations and a comparative study are performed to illustrate the robustness and effectiveness of the proposed robust sliding mode control scheme.

Źródło:

Polish Maritime Research; 2020, 4; 148-156
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce