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    Tytuł:
    Comparative analysis of chosen field weakening methods for the space vector modulated - direct torque controlled drive system
    Autorzy:
    Nguyen Thac, K.
    Orłowska-Kowalska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807724.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    induction motor
    direct torque control
    field weakening
    optimal control
    Opis:
    This paper presents a new simple field weakening (FW) strategy for the Direct Torque Control (DTC) of the induction motor (IM). Based on the Space Vector Modulated - Direct Torque Control (SVM- DTC) scheme, an analysis and comparison of conventional (1/ωm) and proposed method are presented for a whole speed range including FW regions. The proposed strategy is verified through simulation with a 1.5 kW induction motor drive.
    Źródło:
    Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2011, 65, 31; 267-280
    1733-0718
    Pojawia się w:
    Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
    Artykuł
    Tytuł:
    Synchronous reluctance machine drive control with fast prototyping card implementation
    Autorzy:
    Burlikowski, Wojciech
    Kielan, Paweł
    Kowalik, Zygmunt
    Powiązania:
    https://bibliotekanauki.pl/articles/949906.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    direct torque control
    fast prototyping card
    Hamiltonian machine model
    synchronous reluctance motor
    Opis:
    The Synchronous Reluctance Machine (SynRM) is an electrical machine in which the useful electromagnetic torque is produced due to rotor saliency. Its high powerand torque-to-mass ratio and very good efficiency make it a cheap and simple alternative for permanent magnet or induction motors, e.g. in electromobility applications. However, because of magnetic nonlinearities, the rotational speed and torque control of a SynRM is a nontrivial task. In the paper, a control algorithm based on a Hamiltonian mathematical model is presented. The model is formulated using measurement results, obtained by the drive controller. An algorithm is tested in the drive system consisting of a SynRM with the classical rotor and a fast prototyping card. The drive dynamic response in transient states is very good, but the proposed algorithm does not ensure the best efficiency after steady state angular velocity is achieved.
    Źródło:
    Archives of Electrical Engineering; 2020, 69, 4; 757-769
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maximum Torque Control of 3-phase induction motor drives
    Autorzy:
    Wach, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/141618.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    induction motor control
    angular velocity control
    direct torque control
    field oriented control
    DC-AC power converters
    Maximum Torque Control
    Opis:
    Maximum Torque Control (MTC) is a new method applied for control of induction motor drives. The drive is controlled by dc voltage supplying a converter in the range below nominal speed and by a field that weakens for a speed range above the nominal speed. As a consequence, the control is quite similar to the control of a classical separately excited dc motor. This control method could be explained as a kind of simplification of Direct Torque Control (DTC), because the switching scheme is the same as for the DTC, but the variable responsible for a torque control is constantly set for “torque increase”. This kind of control of induction motor drive is simpler than DTC because torque values need not be estimated. The proposed control method offers very good performance for 3-phase induction motors and requires smaller switching frequency in comparison to DTC and Field Oriented Control (FOC). The application of the control is widely demonstrated for a 3-phase 315 kW, 6 kV motor drive by use of computer simulation.
    Źródło:
    Archives of Electrical Engineering; 2018, 67, 2; 433--445
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Control of the DTC-FSVM based induction motor drive in a wide speed range
    Autorzy:
    Nguyen Thac, K.
    Orlowska-Kowalska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1817721.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    induction motor
    direct torque control
    Flux-Space-Vector Modulation
    field weakening control
    Opis:
    In this paper the direct flux and torque control structure based on Flux-error Space Vector Modulation (DTC-FSVM) has been analyzed and compared to a classical DTC-SVM system. The control structures have been tested in a wide speed range including field weakening algorithm based on the voltage and current limits of the voltage inverter and the induction motor. The proposed control strategies are verified through simulation with a 3 kW induction motor drive.
    Źródło:
    Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały; 2014, 70, 34; 3--15
    1733-0718
    Pojawia się w:
    Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sensorless DTC of induction motor using improved neural network switching state selector controller
    Autorzy:
    Messaif, I.
    Berkouk, E. M.
    Saadia, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/229864.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    direct torque control
    NPC three-level inverter
    switching table
    neural point potential
    neural networks
    induction motor
    Opis:
    The paper deals with development of sensorless Direct Torque Control (DTC) system based on neural network. This network is built to solve the task of proper switching states selection based on information about electromagnetic torque and stator flux (position and magnitude) of induction motor. In fact, this technique which uses conventional switching table is not convenient for one-line and real time control for its high computation time. In order to avoid this problem a solution based on neural network is proposed. Well trained Artificial Neural Network structure can replace successfully the switching table. However, in the Neutral-Point-Clamped topology, it has an inherent problem of Neutral Point Potential (NPP) variation. In this way, a Neural Network-Direct Torque Control technique has been applied and the estimated value of the Neutral Point Potential is used, which is calculated by motor currents. This control strategy offers the possibility of selecting appropriate switching state to achieve the control of Neutral Point Potential. Simulation results verify the validity of the proposed method.
    Źródło:
    Archives of Control Sciences; 2010, 20, 4; 435-456
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Investigation of Direct Torque Control and Hysteresis Current Vector Control for Motion Control Synchronous Reluctance Motor Applications
    Autorzy:
    Vajsz, Tibor
    Számel, László
    Handler, Árpád
    Powiązania:
    https://bibliotekanauki.pl/articles/1193685.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    synchronous reluctance motor
    electric drive
    direct torque control
    current vector control
    frequency converter
    motion control
    industrial drives
    Opis:
    Synchronous reluctance motor drives are one of the most attractive alternatives of permanent magnet synchronous motor drives and induction motor drives in the field of conventional industrial and household applications. This tendency is expected to be continued in the case of motion control applications as well. This article investigates two torque-control algorithms that are possible candidates for motion control synchronous reluctance motor applications. The examined torque-control algorithms are direct torque control (DTC) and hysteresis current vector control (HCVC).
    Źródło:
    Power Electronics and Drives; 2019, 4, 39; 115-124
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative study of pi and fuzzy logic based speed controllers of an ev with four in-wheel induction motors drive
    Autorzy:
    Ghezouani, A.
    Gasbaoui, B.
    Nair, N.
    Abdelkhalek, O.
    Ghouili, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/384433.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    electric vehicle
    induction motor
    PI controller
    fuzzy logic controller
    FLC
    direct torque control
    DTC
    four in-wheel induction motors
    Opis:
    This paper presents the modeling, control and simulation of an electric vehicle with four in-wheel 15 kw induction motors drive 4WDEV controlled by a direct torque control DTC strategy, where two control techniques are presented and compared for controlling the electric vehicle speed: the first one is based on a classical PI controller while the second one is based on a fuzzy logic controller (FLC). The aim is to evaluate the impact of the proposed FLC controller on the efficiency of the 4WDEV taking into account vehicle dynamics performances, autonomy and battery power consumption. When the classical controller can’t ensure the electric vehicle stability in several road topology situations. To show the efficiency of the proposed new control technique on the traction system by 4WDEV. The vehicle has been tested in different road constraints: straight road, sloping road and curved road to the right and left using the Matlab / Simulink environment. The analysis and comparison of the simulation results of FLC and PI controllers clearly show that the FLC ensures better performances and gives a good response without overshoot, zero steady state error and high load robustness rejection, compared to the PI controller which is present an overshoot equal 7.3980% and a rise time quite important (0.2157 s with PI controller and 0.1153 s with FLC). As well as the vehicle range has been increased by about 10.82 m throughout the driving cycle and that the energy consumption of the battery has been reduced by about 1.17% with FLC.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2018, 12, 3; 43-54
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Direct Torque Control with Space Vector Modulation for Synchronous Reluctance Motor Motion Control Applications and a Comparison with Other Torque-Control Algorithms
    Autorzy:
    Vajsz, Tibor
    Számel, László
    Handler, Árpád
    Powiązania:
    https://bibliotekanauki.pl/articles/1193683.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    synchronous reluctance motor
    electric drive
    direct torque control
    space vector modulation
    frequency converter
    motion control
    current vector control
    industrial drives
    Opis:
    Motion control is facing an increasing popularity in the present research activities. Owing to the expected wide spreading of motion control applications, it can be predicted that the advancements in the field of electric motor drives will have a high level of influence on the new results in the field of motion control. The synchronous reluctance motor drives mean an excellent and yet cost-effective solution for actuators in motion control applications. In this article, the direct torque control with space vector modulation is analysed as a possible candidate for synchronous reluctance motor motion control applications. Its torque-control performance is investigated as a function of torque-control sample time, and a comparison of the torque ripples is made with other torque-control algorithms by an FFT analysis.
    Źródło:
    Power Electronics and Drives; 2019, 4, 39; 103-113
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of the stator current reconstruction method on direct torque control of induction motor drive in current sensor postfault operation
    Autorzy:
    Adamczyk, Michal
    Orlowska-Kowalska, Teresa
    Powiązania:
    https://bibliotekanauki.pl/articles/2173546.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    current sensor fault
    induction motor drive
    direct torque control
    DTC
    current estimator
    fault-tolerant control
    usterka czujnika
    napęd silnika indukcyjnego
    bezpośrednia kontrola momentu obrotowego
    estymator
    kontrola odporna na awarie
    Opis:
    Modern induction motor (IM) drives with a higher degree of safety should be equipped with fault-tolerant control (FTC) solutions. Current sensor (CS) failures constitute a serious problem in systems using vector control strategies for IMs because these methods require state variable reconstruction, which is usually based on the IM mathematical model and stator current measurement. This article presents an analysis of the operation of the direct torque control (DTC) for IM drive with stator current reconstruction after CSs damage. These reconstructed currents are used for the stator flux and electromagnetic torque estimation in the DTC with space-vector-modulation (SVM) drive. In this research complete damage to both stator CSs is assumed, and the stator current vector components in the postfault mode are reconstructed based on the DC link voltage of the voltage source inverter (VSI) and angular rotor speed measurements using the so-called virtual current sensor (VCS), based on the IM mathematical model. Numerous simulation and experimental tests results illustrate the behavior of the drive system in different operating conditions. The correctness of the stator current reconstruction is also analyzed taking into account motor parameter uncertainties, especially stator and rotor resistances, which usually are the main parameters that determine the proper operation of the stator flux and torque estimation in the DTC control structure.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 1; e140099, 1--11
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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