变速恒频双馈风力发电系统最大风能捕获控制

Maximum Wind Energy Capturing Control for Variable-speed Constant-frequency Doubly-fed Wind Power Generation System

为实现双馈风力发电系统的变速恒频运行和最大风能捕获,首先探讨了最大风能捕获的办法,其次通过对双馈发电机动态数学模型的研究,分析了基于定子磁场定向的有功、无功功率解耦控制策略。最后通过风速变化下的系统仿真验证了理论的正确性和可行性。

In order to implement the control of variable speed constant frequency（VSCF） and maximum wind energy capturing,the method of maximum energy capturing was put forward,then the decoupled control strategy of active power and reactive power based on stator flux oriented was presented by analyzing the mathematical model of the doubly fed induction generator（DFIG）.Finally the simulation under different wind conditions testified the validity and correctness of the theory.