双馈风力发电机有限元计算与分析

FEM Calculation and Analysis on Doubly-Fed Wind Generator

为了精确地计算双馈风力发电机内部电磁场和瞬态性能,利用电磁场理论和变分法建立了双馈风力发电机的数值计算模型,详细论述了基于有限元分析软件Maxwell 2D的双馈风力发电机的仿真计算方法,并把仿真计算结果与实验结果进行对比分析,结果表明了采用有限元计算方法的正确性和可行性,同时也为双馈风力发电机的优化设计提供参考依据。

In order to accurately calculate inner electromagnetic field and transient per- formance of double-fed wind generator, this paper established numerical calculation model of double-fed wind generator by electromagnetic field theory and calculus of variations, then simu- lation calculation method of the double-fed wind generator is presented based on FEM software Maxwell 2D, simulation calculation and experimental result are comparatively analyzed, the an- alyzed conclusion indicates validity and feasibility by adopting FEM calculation, it also supplies references for optimal design of double-fed wind generator.