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    Wyświetlanie 1-9 z 9
    Tytuł:
    A control strategy of a permanent magnet synchronous motor for an electric vehicle
    Autorzy:
    Xie, Jianxin
    Liu, Zimeng
    Powiązania:
    https://bibliotekanauki.pl/articles/2200826.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    PMSM
    SVPWM method
    argument
    voltage difference
    Opis:
    The traditional modulation method of the inverter in a permanent magnet synchronous mo- tor (PMSM) is lengthy and computationally intensive. Based on this, a simplified sinusoidal pulse width modulation method is proposed. In this method, voltage space vectors in each sector are synthesized, and the sector in which the synthesized vector is located is determined by the rotation angle of the resultant vector, and then the acting time of the basic vector is calculated by the voltage difference of the phase voltage. The problem of trigonometric functions and coordinate conversion is not involved in the whole calculation process, the calculation model is simple, and it is easy to realize digitization. Mathematical modeling is carried out by using the simulation software Matlab, and the correctness of the calculation method after optimization is verified, which provides an idea for the later research of the inverter modulation method.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2022, 60, 4; 673--685
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and implementation of a universal inverter for supplying AC and DC electric motors
    Autorzy:
    Ludowicz, Wojciech
    Danielczyk, Dawid
    Wojciechowski, Rafał M.
    Powiązania:
    https://bibliotekanauki.pl/articles/377738.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    inverters
    universal motor driver
    SVPWM
    SPWM
    PWM
    Opis:
    In the paper the novel universal motor driver using three different modulation method of output waveform has been presented and discussed. It should be noted that in today’s world, most of driver of electrical motors are consist of four or six transistors forming appropriate bridges. Appling specified modulation methods enable to drive both single- and three-phase induction and synchronous motors of any kind. The construction of typical transistor bridge that consists of six transistors can be also used to control the direct current motors by switching off one of the pairs of transistors. In this paper the process of construction of universal motor driver has been presented, in which has been implement the modified method of Sinusoidal Pulse Width Modulation (SPWM), Space Vector Pulse Width Modulation (SVPWM) and also the basic Pulse Width Modulation (PWM) for DC motors. The fundamentals of applied modulation algorithms have been discussed and basic equations have been shown. The developed motor controller has been used to power three different types of motors, single-phase induction motor, threephase induction motor and magnetoelectric DC motor. The results of the conducted research have been reported in this work.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2019, 99; 97-107
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model trakcyjnego falownika napięciowego
    The model of the voltage traction inverter
    Autorzy:
    Dominikowski, B.
    Pacholski, K.
    Woźniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/312485.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    falownik napięciowy
    SVPWM
    sieć trakcyjna
    voltage inverter
    traction line
    Opis:
    W artykule przedstawiono model falownika napięciowego typu DC/AC wykorzystywany w zmodernizowanych elektrycznych zespołach trakcyjnych (EZT). W przekształtniku tym wykorzystano metodę sterowania typu SVPWM (ang. Space Vector Pulse Width Modulation), która pozwala w sposób dokładny odwzorować na jego zaciskach wyjściowych przebiegi napięcia sinusoidalnie zmiennego. Obwód tego typu pracujący w sieci trakcyjnej generuje tętnienia wartości wejściowego prądu o częstotliwości sześciokrotnie wyższej niż częstotliwość jego napięcia wyjściowego. Na wejściu DC obwodu pośredniczącego falownika w elektrycznej trakcji szynowej monitoruje się wartość prądu obciążenia sieci jezdnej m.in. do wyznaczenia pobieranej energii elektrycznej pobranej przez zespół trakcyjny.
    In the paper presented the model of the voltage inverter type DC/AC used in modernized electrical traction. In this inverter, the SVPWM (Space Vector Pulse Width Modulation) control method was used which allow to the accurately imitate the voltage sinusoidal variable waveforms on its output connectors. The circuit of this type working in overhead contact line generates pulsations of input-current at a frequency six times higher than the frequency of its output voltage. At the DC input of the inverter circuit in the electric traction rail, the load current of the mains network is monitored. to determine the electricity consumed by the traction unit.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 12; 815-818, CD
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fractional Order Sliding Mode Speed Control of Feedback Linearized Induction Motor
    Autorzy:
    Fetene, Yeshiwas
    Shibeshi, Dereje
    Powiązania:
    https://bibliotekanauki.pl/articles/1193868.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    induction motor
    input-output feedback
    linearization
    fractional-order sliding mode controller
    SVPWM
    load torque observer
    Opis:
    Induction machines have of late become the most popular workhorses in the industry replacing DC machines because of their advantages, such as reduced cost, reliability and the absence of commutators, which make them adapt to unfavourable conditions with lower maintenance requirement. However, higher-order models of AC machines, nonlinearities in model equations, uncertainties in parameters and load disturbances make induction motors difficult to control than that of DC motors. In this paper, a robust control strategy considering the recent advances in technology is proposed employing input-output feedback linearization for the exact decoupling of electromagnetic torque and rotor flux using fractional-order sliding mode controller (SMC) for the outer speed loop. The sliding mode observer is also designed to extract the rotor flux from the DC input voltage of the inverter and stator current measurements. Finally, a comparison between the commonly used proportional integral and derivative (PID) controller and the proposed fractional-order SMCs is made and the conclusion is reached.
    Źródło:
    Power Electronics and Drives; 2020, 5, 40; 109-122
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model matematyczny napędu z silnikiem indukcyjnym - metoda DTC-SVM
    Mathematical model of induction motor - DTC-SVM method
    Autorzy:
    Sieklucki, G.
    Orzechowski, T.
    Sykulski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/320332.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    silnik indukcyjny klatkowy
    model matematyczny
    bezpośrednie sterowanie momentem (DTC)
    metoda wektora przestrzennego w modulacji szerokości impulsu (SVM lub SVPWM)
    squirrel cage induction motor
    mathematical model
    direct torque control (DTC)
    space vector pulse with modulation method (SVM or SVPWM)
    Opis:
    W artykule omówiono strukturę i zasadę pracy układu DTC-SYM. W pracy przedstawiono nieliniowy model matematyczny silnika indukcyjnego w wirującym układzie współrzędnych. Wektor strumienia stojana przyjęto jako oś odniesienia (d). W rozważaniach pominięto dynamikę przemiennika częstotliwości. Celem analizy było uproszczenie (linearyzacja) modelu obwodu strumienia stojan oraz wytwarzania momentu elektrycznego. Zostały przedstawione wyniki badań symulacyjnych, które pozwalają określić błędy linearyzacji modeli. Zamieszczono transmitancje, które mogą zostać wykorzystane w procesie optymalizacji parametrycznej regulatorów.
    Structure and the principle of the work of the DTC-SYM system are talked over in the article. The nonlinear mathematical model of the induction motor in a revolving reference frame is introduced in the work. The stator flux vector is taken as the axis of the reference frame (d). The dynamics of the power electronics frequency converter are neglected in considerations. The simplification (linearization) of the stator flux circuit model and the production of the motor torque is the aim of the analysis. There are presented the results of the simulating researches which let qualify the models linearization errors. The transfer-functions which can be used in the parametric optimization process of regulators was inserted.
    Źródło:
    Elektrotechnika i Elektronika; 2010, 29, 1--2; 33-40
    1640-7202
    Pojawia się w:
    Elektrotechnika i Elektronika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Generalized space vector control for current source inverters and rectifiers
    Autorzy:
    Anitha Roseline, J.
    Senthil Kumaran, M.
    Rajini, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/140525.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    current source rectifiers (CSR)
    current source inverters (CSI)
    current source multilevel inverter (CSMLI)
    space vector pulse width modulation (SVPWM)
    Opis:
    Current source inverters (CSI) is one of the widely used converter topology in medium voltage drive applications due to its simplicity, motor friendly waveforms and reliable short circuit protection. The current source inverters are usually fed by controlled current source rectifiers (CSR) with a large inductor to provide a constant supply current. A generalized control applicable for both CSI and CSR and their extension namely current source multilevel inverters (CSMLI) are dealt in this paper. As space vector pulse width modulation (SVPWM) features the advantages of flexible control, faster dynamic response, better DC utilization and easy digital implementation it is considered for this work. This paper generalizes SVPWM that could be applied for CSI, CSR and CSMLI. The intense computation involved in framing a generalized space vector control are discussed in detail. The algorithm includes determination of band, region, subregions and vectors. The algorithm is validated by simulation using MATLAB /SIMULINK for CSR 5, 7, 13 level CSMLI and for CSR fed CSI.
    Źródło:
    Archives of Electrical Engineering; 2016, 65, 2; 235-248
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of space vector modulation strategy on hybrid (Si-SiC) inverter losses
    Autorzy:
    Bonisławski, M.
    Hołub, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/140592.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    przekształtnik hybrydowy
    elektronika energetyczna
    urządzenie z szeroką przerwą energetyczną
    SVPWM
    DPWM
    power electronic inverter
    SiC diodes
    hybrid inverter
    wide band gap devices
    Opis:
    This work summarizes efficiency measurement results of a full bridge, 3 phase inverter composed of state-of-the-art Si IGBT transistors and Si or SiC diodes. Different (symmetrical and discontinuous) space vector modulation strategies were chosen in order to examine their influence (together with modulation frequency) on inverter losses. Induction machine was used as load, different load points were examined. Results clearly show, that proper modulation strategy, minimizing the switching losses of semiconductor switches, can increase the overall output efficiency at about 1% in case of both silicon and hybrid constructions. The drawback of DPWM approach is connected with the decreased quality of inverter output current. Hybrid technology can also improve the output efficiency at about 1% when compared to traditional constructions, but only in case of elevated switching frequencies. At low frequencies (below 10 kHz) modern semiconductor offer comparable results at much lower device costs.
    Źródło:
    Archives of Electrical Engineering; 2012, 61, 1; 69-75
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integer factor based SVPWM approach for multilevel inverters with continuous and discontinuous switching sequences
    Autorzy:
    Suresh, Kumar Anisetty
    Sri, Gowri Kolli
    Nagaraja, Rao Sulake
    Manjunatha, Budagavi Matam
    Sesi, Kiran Ponnapati
    Niteesh, Kumar K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1955193.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    integer factor approach
    inverters
    multilevel inverters
    optimum switching sequence
    space vector modulation
    SVPWM
    metoda współczynnika całkowego
    inwertery
    inwertery wielopoziomowe
    optymalna sekwencja przełączania
    modulacja wektora przestrzeni
    Opis:
    The most extensively employed strategy to control the AC output of power electronic inverters is the pulse width modulation (PWM) strategy. Since three decades modulation hypothesis continues to draw considerable attention and interest of researchers with the aim to reduce harmonic distortion and increased output magnitude for a given switching frequency. Among different PWM techniques space vector modulation (SVM) is very popular. However, as the number of output levels of the multilevel inverter (MLI) increases, the implementation of SVM becomes more difficult, because as the number of levels increases the total number of switches in the inverter increases which will increase the total number of switching states, which will result in increased computational complexity and increased storage requirements of switching states and switching pulse durations. The present work aims at reducing the complexity of implementing the space vector pulse width modulation (SVPWM) technique in multilevel inverters by using a generalized integer factor approach (IFA). The performance of the IFA is tested on a three-level inverter-fed induction motor for conventional PWM (CPWM) which is a continuous SVPWM method employing a 0127 sequence and discontinuous PWM (DPWM) methods viz, DPWMMIN using 012 sequences and DPWMMAX using a 721 sequence.
    Źródło:
    Archives of Electrical Engineering; 2021, 70, 4; 859-872
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Armature MMF and electromagnetic performance analysis of dual three-phase 10-pole/24-slot permanent magnet synchronous machine
    Autorzy:
    Chen, Zhenfei
    Xing, Ning
    Ma, Hongzhong
    Li, Zhixin
    Li, Jiayu
    Fan, Chenyang
    Powiązania:
    https://bibliotekanauki.pl/articles/2202550.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dual three-phase winding
    fractional-slot
    concentrated winding
    permanent magnet synchronous machines (SCW-PMSMs)
    MMF harmonic analysis
    space harmonics
    magnet eddy-current loss (ECL)
    SVPWM voltage supply
    Opis:
    Fractional-slot concentrated-winding permanent magnet synchronous machines (FSCW-PMSMs) have a good prospect of application in the drive system of electric and hybrid electric vehicles. However, the armature magnetomotive force (MMF) of FSCWPMSM contains a large number of space harmonics, which induce large magnet eddycurrent loss (ECL). To solve this problem, a dual three-phase 10-pole and 24-slot winding layout is proposed.MMFharmonic analysis shows that the 1st, 7th and 17th space-harmonic winding factors of the proposed winding can be reduced by 100%, 87% and 87% respectively, compared with a dual three-phase 10-pole and 12-slot winding. Electromagnetic performances of the proposed machine under rated sinusoidal current supply and space vector pulse-width-modulated (SVPWM) voltage supply are investigated based on 2D finite-element analysis. It is shown that the proposed machine can meet the requirement of torque and efficiency in the full speed range. Especially, magnet ECL can be reduced greatly due to the reduction of the 7th and 17th space harmonics.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 1; 189--210
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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