Particle swarm optimization of the multioscillatory LQR for a three-phase grid-tie converter

• Autorzy: Gałecki A. , Michalczuk M. , Kaszewski A. , Ufnalski B. , Grzesiak L.

Identyfikatory

DOI

10.15199/48.2018.06.08

Warianty tytułu

PL

Optymalizacja rojem cząstek regulatora liniowo-kwadratowego z członami oscylacyjnymi dla trójfazowego przekształtnika sieciowego

• Języki publikacji: EN

Abstrakty

EN

This paper presents an evolutionary optimization of the linear-quadratic (LQ) current controller for a three-phase grid-tie voltage source converter with an L-type input filter. The current control system is equipped with multi-oscillatory terms, which enable the converter to obtain nearly sinusoidal shape and balanced input currents under unbalanced and distorted grid voltage conditions. The augmentation of the state vector to include additional states which describe dynamics of disturbances increases the number of weights to be selected for a cost function in the LQR procedure design. Therefore, it is proposed that optimal weighting factors are sought using particle-swarm-based method. Finally, the simulational tuning based on the linear model and the numerical verification based on a non-linear model of the system with a pulse width modulator are addressed.

PL

Artykuł prezentuje optymalizację ewolucyjną liniowo-kwadratowego regulatora prądu dla trójfazowego przekształtnika sieciowego z filtrem wejściowym typu L. Układ regulacji prądu jest wypozażony w człony oscylacyjne co pozwala na kształtowanie niemal sinusoidalnych i symetrycznych prądów wejściowych w warunkach występowania wyższych harmonicznych i asymetrii napięć sieci. Rozszerzenie wektora stanu o dodatkowe stany opisujące dynamikę zakłóceń zwiększa liczbę wag, które należy dobrać dla funkcji celu ujętej w procedurze projektowania LQR. Dlatego zaproponowano dobór optymalnych wsółczynników wagowych przy użyciu optymalizacji metodą roju cząstek. Finalnie zostały omówione strojenie symulacyjne na modelu liniowym oraz weryfikacja numeryczna na modelu nieliniowym z modulatorem szerokości impulsów.

Słowa kluczowe

EN

grid side converter; linear-quadratic regulator; current controller; particle swarm optimization (PSO); power quality

PL

przekształtnik sieciowy; regulator liniowo-kwadratowy; regulator prądu; optymalizacja rojem cząstek; jakość energii

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2018
• Tom: R. 94, nr 6
• Strony: 43--48
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Gałecki A.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Michalczuk M.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Kaszewski A.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Ufnalski B.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Grzesiak L.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).