Fuzzy-based Active and Reactive Control for Brushless Doubly-fed Wind Power Generation System

Using rotor d-q model as a start point, this paper analyses the mathematical model for BDFM based on synchronous reference frame. And, based on characteristics of BDFM, a new type of power control system is designed by using the gap flux oriented vector transformation control technology. Meanwhile, because the generator structure is complex and the generator parameters are variable, fuzzy control is used for the power loop of the outer loop to further enhance the robustness of the system. Thus high efficiency energy generation is achieved through maximal wind energy capturing. Simulation results verify the correctness and effectiveness of this control strategy.