无刷双馈电机电动状态下的能量分析

Power flow in brushless doubly-fed machine under motor operation

无刷双馈电机作为一种新颖电机，无论是电机结构还是运行特性都有其特殊性。从电视稳态模型出发，分析了无刷双馈电机作为调速电动机在各种不同转速范围内定、转子间的能量传递关系，为无刷双馈电机的绕组容量设计以及变频器容量的选择方面提供依据。

As a new type motor, Brushless Double--Fed Machine(BDFM) has shown specialties in its structure and operational characteristic. Based on the steady--state model of the BDFM, this paper discusses the power flow in the two stator windings and the rotor circuit under different speed ranges. The results obtained offer the theoretical basis for machine's design and selecting the capacity of converter.