异步电动机稳态T-I型等值电路分析和应用

Theory and Applications of Steady State Equivalent Circuit of T- I Model of an Induction Motor

在介绍异步电动机稳态Ｔ－Ｉ型等值电路理论和应用的基础上。讨论了Ｔ－Ｉ型与其他４种等值电路的相互关系。推导了电磁转矩参数表达式。给出了等值电路参数实验求取方法。最后介绍了应用Ｔ－Ｉ模型理论实时检测考虑饱和效应和温升时的电磁转矩和转子时间常数。

: This paper introduces the theory and applications of steady state equivalent circuit of T-I model of an induction motor. All the relations between T- I model and other four models are discussed. An electromagnetic torque expression with T- I model parameters was derived. All the parameters in T- I model can be determined by the experiments, which is introduced in detail. Finally the applications of the theory of T- I model in determining electromagnetic torque and rotor time constant considring saturation effect and temperatare rise in real time are introduced.