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    Wyświetlanie 1-12 z 12
    Tytuł:
    The effect of space vector modulation algorithm on characteristics of three-phase voltage inverter for drives of optical telescopes
    Autorzy:
    Tomasov, V.
    Usoltsev, A.
    Zolov, P.
    Gribanov, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/200303.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multilevel inverter
    space vector modulation
    modulation algorithm
    current ripple
    precision AC drive
    inwerter
    modulacja
    napęd AC
    Opis:
    The effect of space vector modulation algorithm on magnitude of current vector ripples was considered on the mathematical model of a three-level three-phase voltage inverter with symmetric active inductive load. Limitations on the use of such inverters as a power supply for precision drive of optical telescopes were specified.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 629-637
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An improved space vector modulation strategy for common-mode voltage reduction in matrix rectifier
    Autorzy:
    Liu, X.
    Zhang, Q.
    Hou, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/950664.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    matrix converter
    space vector modulation
    common-mode voltage
    Opis:
    The matrix rectifier modulated by the classical space vector modulation (SVM) strategy generates common-mode voltage (CMV). The high magnitude and high du/dt of the CMV causes serious problems such as motor damage, electromagnetic noise and many others. In this paper, an improved SVM strategy is proposed by replacing the zero vectors with suitable couple of active ones that substantially eliminate the CMV. Theoretical analysis proves that the proposed strategy can reduce the amplitude of the CMV to half of the original value. In addition, the quality of the input and output waveforms is not affected by extra active vectors. Simulation and experimental results demonstrate the feasibility and effectiveness of the proposed strategy are shown.
    Źródło:
    Archives of Electrical Engineering; 2014, 63, 1; 93-106
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new closed loop speed control strategy for a vector controlled three-phase induction motor drive
    Autorzy:
    Tripathi, A.
    Dey, A.
    Dwivedi, B.
    Singh, B.
    Chandra, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/262777.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    space vector modulation
    VSI
    induction motor model
    transients
    steady state value
    Opis:
    This paper presents a completely mathematical equations based model on control of torque and speed of a three-phase indirect vector controlled VSI fed cage induction motor drive that is controlled through the space vector modulated method. This enables a wide range of acceptability of the model for various values of load and for various types and ratings of induction motors. The uniqueness of the model lies in the fact that the deviations in the torque and speed on sudden application of reference step change in speed values are minimum i.e. when any sudden change in the speed reference is desired, the speed and torque waveforms reveal that the time taken in coming back to their final steady state values is very less and the motor overcomes the perturbation with negligible transients. The same is verified through the simulated results.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2008, 14, 1; 67-72
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A method of reducing switch count in three-level NPC inverter – analysis in steady states
    Autorzy:
    Beniak, R.
    Rogowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193464.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    reduction of switch count
    three-level NPC inverter
    space vector modulation
    Opis:
    The proof of a concept for a new method of modulation has been presented which reduce switch count in a three-level neutral point clamped (3L-NPC) inverter. The method is an implementation of space vector modulation (SVM) by means of a prediction algorithm and sequences of transistors, which are not common in use. Those sequences make active use of clamping diodes of the inverter. The prediction algorithm analyzes possible sequences of transistors’ states and choose those which offers smaller switch count. Measurements of steady states were taken on prototype 3L-NPC.
    Źródło:
    Power Electronics and Drives; 2017, 2, 37/2; 117-126
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A method of reducing switching losses in three-level NPC inverter
    Autorzy:
    Beniak, R.
    Rogowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193262.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    reduction of switching losses
    three-level NPC inverter
    space vector modulation
    Opis:
    The aim of the paper is to present a concept of implementation of a space vector modulation (SVM) algorithm, which is used to create alternating current waveforms of changing amplitude and frequency in power inverters. The main goal of the method is to decrease the number of state changes in power transistors. It is realized by utilizing a prediction algorithm and sequences of transistors, which are not common in use. The method requires measurement of inverter output current flow. The prediction algorithm analyzes possible sequences of transistors’ states and choose those which offers smaller switch count. A decrease of about 20% was obtained for the cases tested. This paper presents simulation result for selected driving scenario. The described method decreases the number of state changes in power transistors and therefore it is a potentially good method to considerably decrease energy losses of multilevel inverter-powered drive.
    Źródło:
    Power Electronics and Drives; 2016, 1, 36/2; 55-63
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Predictive-SVM control method dedicated to an AC/DC converter with an LCL grid filter
    Autorzy:
    Dmitruk, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/200760.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    three-phase voltage converter
    model predictive control
    space vector modulation
    infinite control set
    Opis:
    This paper presents simulation and laboratory test results of an implementation of an infinite control set model predictive control into a three-phase AC/DC converter. The connection between the converter and electric grid is made through an LCL filter, which is characterized by a better reduction of grid current distortions and smaller (cheaper) components in comparison to an L-type filter. On the other hand, this type of filter can cause strong resonance at specific current harmonics, which is efficiently suppressed by the control strategy focusing on the strict control input filter capacitors voltage vector. The presented method links the benefits of using linear control methods based on a space vector modulator and the nonlinear ones, which result in excellent control performance in a steady state as well as in a transient state.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 5; 1049-1056
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Backstepping/DTC control of a double star synchronous machine drive
    Autorzy:
    Boudana, D.
    Nezli, L.
    Tlemcani, A.
    Mahmoudi, M. O.
    Djemai, M.
    Tadjine, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/229805.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    double star synchronous machine
    direct torque control
    backstepping/DTC
    space vector modulation
    robustness
    Opis:
    Direct torque control (DTC) allows for very high quality torque control without a need for current controllers tuning or using coordinate transformation. However, barge torque ripples arise as well as inconstant inverter switching frequency due to the hysteresis of comparators. This paper present a backstepping/DTC control based on the space vector modulation (SVPWM) for double star synchronous machine (DSSM) to reduce the torque, flux, current and speed pulsations during steady state. By the coordinate transformation the DSSM models are presented in view of control. Then a conventional DTC is developed to get a decoupled system and a PI controller is designed to control the speed. To improve the static and dynamic control performance of the DSSM, the speed controller is designed using a backstepping/DTC procedure in conjunction with SVPWM. Simulation results with the conventional DTC and proposed backstepping/DTC are presented and compared. Results show the effectiveness and the robustness of the approach proposed.
    Źródło:
    Archives of Control Sciences; 2010, 20, 2; 227-247
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Space-vector pulsewidth modulation for a seven-level cascaded H-bridge inverter with the control of DC-link voltages
    Autorzy:
    Lewicki, A.
    Morawiec, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/200099.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cascade H-bridge inverter
    DC-link voltage control
    space vector modulation
    mostek H
    sterowanie napięciem
    modulacja
    Opis:
    A control strategy of DC-link voltages for a seven-level cascaded H-bridge inverter is proposed in this paper. The DC-link voltage balancing is accomplished by an appropriate selection of H-bridges and control of their duty cycles in space-vector modulation (SVM) algorithm. The proposed SVM method allows to maintain the same voltage level on all inverter capacitors. Regardless of the balancing function, the SVM strategy makes it possible to generate the output voltage vector properly also in the case where the DC-link voltages are not balanced. The results of simulation and experimental investigations are presented in the paper.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 619-628
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    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:
    Multi-input multi-output fuzzy logic controller for utility electric vehicle
    Autorzy:
    Gasbaoui, B.
    Abdelkader, Ch.
    Adellah, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/141051.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    pojazd elektryczny
    modulacja wektora przestrzennego
    sterowanie rozmyte
    electric vehicle
    electronic differential
    space vector modulation
    fuzzy logic control
    multi-input multi-output fuzzy logic control
    Opis:
    Currently commercialization of electric vehicle (EV) is based to minimize the time of starting and acceleration. To undergo this problem multi-input multi-output fuzzy logic controller (MIMO-FLC) affect on propelled traction system forming MMS process was proposed. This paper introduces a MIMO-FLC applied on speeds of electric vehicle, the electric drive consists of two directing wheels and two rear propulsion wheels equipped with two light weight induction motors. The EV is powered by two motors of 37 kilowatts each one, delivering a 476 Nm total torque. Its high torque (476Nm) is instantly available to ensure responsive acceleration performance in built-up areas. Acceleration and steering are ensured by an electronic differential system which maintains robust control for all cases of vehicle behavior on the road. It also allows controlling independently every driving wheel to turn at different speeds in any curve. Direct torque control based on space vector modulation (DTC-SVM) is proposed to achieve the tow rear driving wheel control. The MIMO-FLC control technique is simulated in MATLAB SIMULINK environment. The simulation results have proved that the MIMO-FLC method decreases the transient oscillations and assure efficiency comportment in all type of road constraints, straight, slope, descent and curved road compared to the single input single output fuzzy controller (SISO-FLC).
    Źródło:
    Archives of Electrical Engineering; 2011, 60, 3; 239-256
    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:
    Direct Torque Control of multi-phase induction motor with fuzzy logic speed controller
    Bezpośrednie sterowanie momentem wielofazowego silnika indukcyjnego z rozmytym regulatorem prędkości
    Autorzy:
    Listwan, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/408418.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
    Tematy:
    seven-phase induction motor
    Direct Torque Control
    space vector modulation
    fuzzy logic control
    silnik indukcyjny 7-fazowy
    bezpośrednie sterowanie momentem
    metoda modulacji wektorowej
    sterowanie rozmyte
    Opis:
    The paper presents the Direct Torque Control with Space Vector Modulation (DTC-SVM) of seven-phase induction motor with Fuzzy Logic Speed Controller. The mathematical model of the seven-phase squirrel-cage induction motor and chosen methods of Space Vector Modulation have been presented. Simulation studies of the DTC-SVM with Fuzzy Logic speed controller have been carried out and the results of simulation studies have been presented and discussed. The author original contribution includes analysis and studies of considered control method of seven-phase induction motor.
    W artykule przedstawiono metodę bezpośredniego sterowania momentem siedmiofazowego silnika indukcyjnego z zastosowaniem metod modulacji wektorowej i rozmytego regulatora prędkości. Przedstawiono model matematyczny siedmiofazowego silnika indukcyjnego klatkowego oraz wybrane metody modulacji wektorowej. Przeprowadzono badania symulacyjne sterowania silnikiem z zastosowaniem metody DTC-SVM i rozmytego regulatora prędkości. Przedstawiono i omówiono wyniki badań symulacyjnych. Oryginalny wkład autora dotyczy analizy i badań przedstawionej metody sterowania silnikiem siedmiofazowym.
    Źródło:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2017, 7, 4; 38-43
    2083-0157
    2391-6761
    Pojawia się w:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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