摘  要：很多电气传动类教材对异步电机等效电路缺乏简明推导。该文通过异步电机化理想变压器和异步电机电压方程等效变换，推导了常用的异步电机稳态等效电路和动态等效电路。分析了矢量控制不对称T型动态等效电路和直接转矩控制г型动态等效电路特定的物理意义。该方法易于理解，给设计矢量控制和直接转矩控制提供更直观的数学模型。
关键词：异步电机；等效电路；推导；分析

Abstract: Many electric transmission teaching materials are on the lack of simple inference of equivalent circuit of asynchronous motor. By transforming the ideal transformer and the equivalent transformation of voltage equation, the commonly used stable equivalent circuit and dynamic equivalent circuit of asynchronous motor were inferred in this paper. Unsymmetrical T type dynamic equivalent circuit for vector andгtype dynamic equivalent circuit for direct torque were analyzed and specific physical meaning was presented. This method is easy to understand, providing a more intuitive model to the design of vector control and direct torque control.
Key words: asynchronous motor; equivalent circuit; inference; analysis