无刷双馈电机统一坐标系模型的仿真研究

Brushless doubly-fed machine has high reliability, small maintenance workload, which is especially used as a generator for the variable speed constant frequency wind power generation system by virtue of the absence of a brush gear. Due to brushless doubly-fed machine's complex electromagnetic structures, its mathematical model characterized by diversified and complicated characteristics. The unified reference frame model are studied in this paper, two general equivalent circuits corresponding to power winding and control windings general formula of unified reference frame model are derived, respectively, unified reference frame model is simulation studied, and the simulation results are consistent with theoretical analysis, which validate the correctness of the mathematical model.