摘要：感应电机转子时间常数的准确获取，对基于电流模型的间接转子磁场定向控制系统至关重要。针对电机运行过程中转子时间常数易发生变化的问题，本文以磁场定向准确时转子磁链t轴分量为0作参考，用构造的稳态转子磁链与之比较，提出了一种在线校正转子时间常数的方法。并在Matlab/Simulink平台对该方法进行仿真研究，结果证明了该方法的有效性。
关键词：感应电机；转子时间常数；转子磁链；在线；校正

Abstract: It is important for indirect rotor fieldoriented control system based on the current model to get accurate rotor time constant of induction motor.   Rotor time constant changes easily when the motor is running. Therefore, in this paper, the author used the conclusion that when the magnetic field orientation is accurate, the rotor flux taxis component is 0 as the reference , proposed a method of online correction for the rotor time constant using steady rotor flux . Besides,the method was proved effective by simulation on matlab/simulink platform.
Key words:induction motor；rotor time constant；online；correction