VSCF wind turbine control strategy for maximum power generation

Variable-speed constant-frequent (VSCF) wind turbine with doubly-fed induction generator (DFIG) has super ability for wind energy tracking under rated wind velocity. Aimed at improving turbine dynamic control performance and power generation, a novel wind energy tracking control strategy is proposed, in which, wind velocity, rotating-speed and power signals are all adopted in fuzzy logical system for DFIG optimal rotating-speed control. Meanwhile, reactive power control strategy is also discussed to reduce generator loss. Finally, the whole wind generation system model is established, and simulating results indicate the effectiveness of the proposed methods.