Control system of the grid-connected converter based on a state current regulator with oscillatory terms

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

Warianty tytułu

PL

Układ sterowania przekształtnikiem sieciowym wykorzystujący regulator stanu ze sprzężeniem od prądów i sygnałów z członów oscylacyjnych

• Języki publikacji: EN

Abstrakty

EN

This paper presents a state-feedback current controller with oscillatory terms for three-phase grid-connected PWM converters. Use of the oscillatory terms allows for shaping the sinusoidal input currents of the converter under distorted grid voltage conditions. Linear-quadratic optimization method is used to calculate the current controller gains. In the converter control structure the state current controller and PI DC-link voltage controller are used. Mathematical analysis and simulation results of the proposed control system are presented and discussed.

W artykule przedstawiono regulator prądu ze sprzężeniem od wektora stanu z rozszerzeniem o człony oscylacyjne opracowany dla trójfazowych przekształtników sieciowych PWM.Wykorzystanie członów oscylacyjnych pozwala na kształtowanie sinusoidalnego prądu wejściowego prostownika przy odkształconym napięciu sieci. Współczynniki wzmocnień regulatora prądu obliczono z wykorzystaniem optymalizacji liniowo-kwadratowej. W strukturze sterowania przekształtnikiem zastosowano opracowany regulator prądu oraz regulator PI napięcia DC-linku. Przedstawiono analizę matematyczną i omówiono wyniki badań symulacyjnych.

Słowa kluczowe

EN

grid-connected converter; linear quadratic regulator; current controller; harmonic distortion

PL

przekształtnik sieciowy; regulator liniowo-kwadratowy; regulator prądu; odkształcenie wyższymi harmonicznymi

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2015
• Tom: R. 91, nr 1
• Strony: 65--69
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Gałecki A.

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

autor

Kaszewski A.

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

autor

Grzesiak L.M.

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

autor

Ufnalski B.

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

Bibliografia

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