无刷双馈电机的效率分析

Analysis of Efficiency for Brushless Doubly-fed Machine

无刷双馈电机是一种新型的感应电机,可以降低调速系统的容量,对电网的谐波污染小,因而具有很好的发展前景.从无刷双馈电机的原理出发,分析了定子和转子的损耗,进一步对定子绕组极数的选择、定子绕组的设计形式、转子绕组极数的选择以及转子绕组的设计等方面进行了详尽的说明和分析,总结出提高该类电机效率的方法和途径。

The brushless doubly-fed machine（BDFM） is a new type of induction machine, which reduces the capacity of adjustable speed drive systems and decreases harmonic pollution. It has a bright developing prospect. Starting from the principle of brushless doubly-fed machine, analyzed the loss of stator and rotor, explaind elaborately the poles number selection, design style of stator and rotor winding, and summrized the method and approach of improving efficiency of BDFM.