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    Wyświetlanie 1-14 z 14
    Tytuł:
    Comparison of higher harmonic contents in salient pole synchronous generator with different rotor construction
    Autorzy:
    Ludwinek, K.
    Nadolski, R.
    Staszak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/140521.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    salient pole synchronous generator
    higher harmonics
    solid rotor
    rotor with radial incisions
    laminated rotor
    Opis:
    The paper presents a comparison of higher harmonics in induced phase voltages of a stator winding in the no-load state of a three-phase 5.5 kVA salient pole synchronous generator. The comparison is carried out for the synchronous generator with different salient pole rotor constructions: a non-skewed solid rotor, a non-skewed solid rotor with radial incisions, and a laminated electrotechnical steel rotor with skewed slots and damping bars. The calculations of higher harmonics are based on the magnetic field distributions in the air gap, which are carried out in a 2D model in a FEMM program and on the induced voltage waveforms in the stator windings registered during experimental investigations of the 5.5 kVA salient pole synchronous generator in the no-load state.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 1; 121-139
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of best rotor length in solid-rotor induction motor with axial slitting
    Autorzy:
    Jagiela, M.
    Garbiec, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/140492.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    prądy wirowe
    silnik indukcyjny
    solid-rotor
    induction motor
    rotor-end factor
    eddy currents
    Opis:
    The efficiency of the solid-rotor induction machines depends on axial length of rotor (including the end-regions). Determination of the best axial length is problematic because of current density distribution in the end-regions and also because of absence of dedicated methods and models. This work proposes a method that circumvents this difficulty. It is based on the numerical determination of a dimensionless rotor-end factor using a combination of three- and two-dimensional finite element models restricted to the motor rotor. Such the end factor can be used in both analytical and numerical model of the machine in order to determine the typical performance characteristics. In this work, using this method, we determined an optimal length of the slitted solid rotor of a motor operating at 12 000 rpm, that maximizes the motor efficiency. The results of computations and measurements, carried out on the laboratory test-stand, are presented.
    Źródło:
    Archives of Electrical Engineering; 2012, 61, 2; 267-276
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Main inductances of induction motor for diagnostically specialized mathematical models
    Autorzy:
    Węgiel, T.
    Weinreb, K.
    Sułowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/141392.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    silnik indukcyjny
    uszkodzenie wirnika
    diagnostyka
    ekscentryczność wirnika
    wirnik
    induction motors
    rotor fault diagnosis
    rotor eccentricity
    Opis:
    In the paper modeling of main inductances for mathematical models of induction motors is applied to study the effects caused by a rotor eccentricity and saturation effects. All three possible types of eccentricity: static, dynamic and mixed are modeled. The most important parameters describing rotor eccentricity include self and mutual inductances of the windings. The structural changes of the permeance function as a result of eccentricity appearance and the Fourier spectra of inductances in occurrence of saturation for each case are determined in the paper. The presented algorithm can be used for the diagnostically specialized models of induction motors.
    Źródło:
    Archives of Electrical Engineering; 2010, 59, 1-2; 51-66
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model of the double-rotor induction motor in terms of electromagnetic differential
    Autorzy:
    Adamczyk, D.
    Wilk, A.
    Michna, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/140805.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    double rotor
    electromagnetic differential
    induction machine
    Opis:
    The paper presents a concept, a construction, a circuit model and experimental results of the double-rotor induction motor. This type of a motor is to be implemented in the concept of the electromagnetic differential. At the same time it should fulfill the function of differential mechanism and the vehicle drive. One of the motor shafts is coupled to the direction changing mechanical transmission. The windings of the external rotor are powered by slip rings and brushes. The inner rotor has the squirrel-cage windings. The circuit model parameters were calculated based on the 7.5 kW real single-rotor induction motor (2p = 4). Experimental verification of the model was based on comparison between the mentioned single-rotor motor and double-rotor model with the outer rotor blocked. The presented results showed relatively good compliance between the model and real motor.
    Źródło:
    Archives of Electrical Engineering; 2016, 65, 4; 761-772
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of a two-phase transverse flux switched reluctance motor with an outer rotor
    Autorzy:
    Łukaniszyn, M.
    Kowol, M.
    Kołodziej, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/140820.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    transverse flux switched reluctance motor
    outer rotor
    optimization
    Opis:
    This paper presents optimization results for a two-phase, modular transverse flux switched reluctance motor (TFSRM) with an outer rotor. In particular, the main disadvantage of the considered motor structure, that is the zero starting torque in some rotor positions, is eliminated by construction optimization. A numerical model of the motor developed in the Flux3D program is coupled with a Matlab-based evolutionary algorithm for optimization of construction parameters of the magnetic circuit. The elaboratem algorithm is also connected with a database to limit the computation costs. Three objective functions are taken into account for the motor integral parameter improvement. The fundamental role of a type of an optimization criterion function is comparatively analyzed and a new effective criterion function is introduced.
    Źródło:
    Archives of Electrical Engineering; 2012, 61, 4; 567-578
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design methods for limiting rotor losses in a fractional slot PMSM motor with high power density
    Autorzy:
    Wolnik, Tomasz
    Opach, Szczepan
    Cyganik, Łukasz
    Jarek, Tomasz
    Szekeres, Vojtech
    Powiązania:
    https://bibliotekanauki.pl/articles/2172802.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fractional slot motors
    high power density motor
    rotor losses
    Opis:
    Fractional slot PMSM motors enable high power density factors to be obtained provided that their electromagnetic circuit, appropriate mechanical structure and cooling system are properly designed, as well as when operating at a high frequency of power supply voltage (400–800 Hz) with high magnetic saturation and high current loads (approx. 12–15 A/mm2). Such operating conditions, especially in the case of fractional slot motors, may be the reason for excessive rotor losses, mainly in the rotor yoke and permanent magnets. One of the conditions for obtaining high values of continuous power of the motor is the reduction of these losses. This paper presents selected design methods for limiting the value of rotor losses with simultaneous consideration of their influence on other motor parameters. The analysiswas carried out for a PMSM motor with an external rotor weighting approx. 10 kg and a maximum power of 50 kW at a rotational speed of 4 800 rpm.
    Źródło:
    Archives of Electrical Engineering; 2022, 71, 4; 963--979
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and simulation of disk stepper motor with permanent magnets
    Autorzy:
    Kaňuch, J.
    Ferková, Ž.
    Powiązania:
    https://bibliotekanauki.pl/articles/141673.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Stepper motor
    disk rotor
    permanent magnet
    magneto-static field simulation
    Opis:
    In this paper the design and the magneto-static simulation of axial-flux permanent- magnet stepper motor with the disc type rotor is presented. Disk motors are particularly suitable for electrical vehicles, robots, valve control, pumps, centrifuges, fans, machine tools and manufacturing. The brushless machine with axial flux and permanent magnets, also called the disc-type machine, is an interesting alternative to its cylindrical radial flux counterpart due to the disk shape, compact construction and high torque density. This paper describes a design of four phase microstepping motor with the disc type rotor. The FEM modeling and the 3D magneto-static simulation of the disk stepper motor with permanent magnets is being subject of the article, too. Disc rotor type permanent magnet stepper motor for high torque to inertia ratio is ideal for robotics and CNC machines.
    Źródło:
    Archives of Electrical Engineering; 2013, 62, 2; 281-288
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Asynchronous slip-ring motor synchronized with permanent magnets
    Autorzy:
    Glinka, T.
    Bernatt, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/140518.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    motor with permanent magnets
    slip-ring rotor winding
    asynchronous start
    Opis:
    The electric LSPMSM motor presented in the paper differs from standard induction motor by rotor design. The insulated start-up winding is located in slots along the rotor circumference. The winding ends are connected to the slip-rings. The rotor core contains permanent magnets. The electromechanical characteristics for synchronous operation were calculated, as were the start-up characteristics for operation with a shortcircuited rotor winding. Two model motors were used for the calculations, the V-shaped Permanent Magnet (VPM) – Fig. 3, and the Linear Permanent Magnet (IPM) – Fig. 4, both rated at 14.5 kW. The advantages of the investigated motor are demonstrated in the conclusions.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 1; 199-206
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel rotor design for a hybrid excited synchronous machine
    Autorzy:
    Paplicki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/141651.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    experimental result
    field-weakening
    finite element analysis
    hybrid excitation
    PM machine
    rotor design
    Opis:
    The paper presents three novel rotor design concepts for a three-phase electric controlled permanent magnet synchronous machine (ECPMS-machine) with hybrid excitation. The influence of magnets and flux-barriers arrangement on the magnetic field distribution and field-weakening characteristics of the machine is examined, based on a three-dimensional finite element analysis (3D-FEA). Moreover, a prototype rotor design based on a new rotor concept with a good field-weakening capability is presented in detail. Finally, the experimental results of no-load back electromotive force (back-EMF) waveforms and field-weakening characteristics versus a control coil current of the machine are reported.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 1; 29-40
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rotor optimization of axial-radial flux type synchronous machine based on magnetic flux leakage
    Autorzy:
    Qiu, Hongbo
    Zhang, Shubo
    Powiązania:
    https://bibliotekanauki.pl/articles/1841116.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ARFTPMSM
    rotor structure
    three-dimensional model
    magnetic leakage
    konstrukcja wirnika
    model trójwymiarowy
    wyciek magnetyczny
    Opis:
    The axial-radial flux type permanent magnet synchronous machine (ARFTPMSM) can adjust the main magnetic field by controlling the axial flux, so it can overcome the problem that the flux of the permanent magnet synchronous motor (PMSM) is difficult to adjust. Due to the existence of the axial device in the ARFTPMSM, the finite element method (FEM) is used to establish a three-dimensional model for analysis. By analyzing the magnetic density distribution of the rotor, it is found that there is a serious magnetic leakage phenomenon at both ends of the tangential permanent magnet. The rotor material at the end of the tangent permanent magnet is replaced by non-ferromagnetic material to reduce the magnetic leakage. On this basis, the influence of the width of the non-ferromagnetic material on the performance of the motor is compared. By Fourier decomposition of the back-EMF waveform, the total harmonic distortion (THD) rate of the back-EMF under different axial magnetomotive force (MMF) was calculated. Finally, the eddy current distribution and the eddy current loss of the rotor are analyzed, and the variation law of the eddy current loss is summarized. The conclusion can provide reference for the optimal design of the ARFTPMSM.
    Źródło:
    Archives of Electrical Engineering; 2021, 70, 3; 551-566
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-domain analytical rotor model with buried permanent magnets in V-arrangement for high-speed applications
    Autorzy:
    Lauerburg, Maximilian
    Toraktrakul, Polkrit
    Hameyer, Kay
    Powiązania:
    https://bibliotekanauki.pl/articles/27309935.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    analytical calculation method
    arrangement of buried permanent magnets
    high-speed rotor morphology
    multi-domain design process
    Opis:
    Different buried permanent magnet arrangements in rotors are compared based on electrical machines found in literature regarding high-speed capability. An analytical approach is presented to analytically calculate mechanical stresses in the bilateral and central bridge of V arrangements in order to determine the achievable circumferential velocity of a rotor geometry. The mechanical model is coupled to an analytical model which can determine the flux density in the main air gap under consideration of flux leakage within the rotor. The multi-domain model enables the analytical design of high-speed rotors with buried permanent magnets in V-arrangement.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 3; 629--641
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Augmented speed control scheme of dual induction motors with mutual flux angle control loop
    Autorzy:
    Kondratenko, Dmytro
    Lewicki, Arkadiusz
    Łuksza, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/27309952.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    dual-motor drive
    induction motors
    IMs
    five-leg voltage source inverter
    FLVSI
    rotor angle control
    sensorless control
    Opis:
    This paper proposes an augmented speed control scheme of dual induction motors fed by a five-leg voltage source inverter (VSI) with a common/shared-leg. An additional control loop is proposed here and based on the mutual flux angle – the difference between flux angular positions of the IMs. The main purpose of this research is to minimize the energy losses in the common inverter leg by controlling the mutual flux angle, at equal angular speeds of both motors. Simulation and experimental studies were carried out and the effectiveness of the proposed control method was proven. The PLECS software package was used for the simulation tests. The laboratory prototypewas prepared for the experimental validation. All results were provided and discussed in this paper.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 4; 915--930
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparative study based on proportional integral and backstepping controllers for doubly fed induction generator used in wind energy conversion system
    Autorzy:
    Moumani, Youssef
    Laafou, Abdeslam Jabal
    Madi, Abdessalam Ait
    Powiązania:
    https://bibliotekanauki.pl/articles/2202553.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    backstepping control
    control
    Doubly FedInduction
    Grid Side Converter
    MPPT
    Maximum Power Point Tracking
    PI
    Rotor Side Converter
    wind turbine
    Opis:
    This paper presents a comparative study between the conventional PI (Proportional Integral) and backstepping controllers applied to the DFIG (Doubly Fed Induction Generator) used in WECS (Wind Energy Conversion System). These two different control strategies proposed in this work are developed to control the active and reactive power of the DFIG on the one hand, and to maintain the DC-link voltage constant for the inverting function on the other hand. This is ensured by generating control signals for two power electronic converters, RSC (Rotor Side Converter) and GSC (Grid Side Converter). In order to optimise the power production in the WT (Wind Turbine), an MPPT (Maximum Power Point Tracking) algorithm is applied along with each control technique. To simulate the effectiveness of the proposed controllers, MATLAB/Simulink Software is used, and the obtained results are analysed and discussed to compare PI and backstepping controllers in terms of robustness against wind speed variations and tracking performance in dynamic and steady states.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 1; 211--228
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of closed loop control on diagnostic indices in different faults of squirrel cage induction motor
    Autorzy:
    Bouabid, Nourelhouda
    Moussa, Mohamed-Amine
    Maouche, Yassine
    Khezzar, Abdelmalek
    Powiązania:
    https://bibliotekanauki.pl/articles/1955204.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    closed loop control
    discrete Fourier transformation
    fault diagnostic
    indirect filed control
    rotor mechanical faults
    squirrel cage induction motor
    sterowanie w pętli zamkniętej
    dyskretna transformacja Fouriera
    diagnostyka błędów
    sterowanie pośrednie złożone
    usterki mechaniczne wirnika
    silnik indukcyjny klatkowy
    Opis:
    The aim of this work is to study the influence of closed loop control on diagnostic indices of both broken bar and mixed air-gap eccentricity fault indices of the squirrel cage induction motor drive. The present work is focused on the direct stator current isd signal analysis, which is independent of torque load when the induction motor is controlled by an indirect control field. The fault signatures are on the line extracted from the direct stator current signal using the discrete Fourier transformation (DFT). The formula of the measured direct stator current at both conditions is determined by the transfer function of the current loop. The obtained results show that the current loop corresponds to a low pass filter and can reduce the magnitude of diagnostic indicators which lead to wrong evaluation of the fault. Simulation and experiments were carried out in order to confirm the theoretical analysis.
    Źródło:
    Archives of Electrical Engineering; 2021, 70, 4; 943-958
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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