This paper proposes two identifiers. One is used to identify stator flux, by which the electromagnetic torque can be calculated. The other discusses dynamical identification of rotor speed under the conditions that the parameters of induction motor are unchanged or partially changed. Then simulation results are given.%首先提出一种基于感应电动机直接转矩控制系统的定子磁通自适应辨识方案,在此基础上,提出电磁转矩的计算方法.最后给出一种转速实时自适应辨识方案,并分别讨论了感应电动机参数不变和部分参数变化时转子转速的动态辨识.仿真试验证明所提出方案是比较先进的.
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