Input-Output Linearization and Predictive Current Controller for Offshore Wind Farm VSC-HVDC
نویسندگان
چکیده
In this paper, a nonlinear controller for VSC-HVDC transmission system is proposed. The feedback linearization based nonlinear differential-geometric techniques is used to cancel nonlinearities and decouple the input control variables. A predictive current control (PCC) method is also proposed. It can predict the current reference for the next sampling instant rapidly and accurately. Comprehensive time-domain computer simulations within MATLAB/Simulink have been carried out and the results show the feasibility and effectiveness of the proposed control scheme. Streszczenie. W artykule przedstawiono algorytm sterowania nieliniowego dla system przesyłu energii VSC-HVDC. W celu odprzężenia sterowanych zmiennych i eliminacji nieliniowości, zastosowano technikę nieliniowej geometrii-różniczkowej do linearyzacji sprzężenia zwrotnego. Zaproponowano także sterowanie predykcyjne prądu. Wykonane badania symulacyjne w programie Matlab/Simulink potwierdziły skuteczność algorytmu sterowania. (System sterowania dla farm wiatrowych w układzie VSC-HVDC – linearyzacja wejścia/wyjścia, sterowanie predykcyjne prądu).
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