一种有效的异步电机参数辨识方法及运用

An Effective Parameter Identification Method for Asynchronous Motor and Application

异步电机的准确控制需要依赖准确的电机参数,而电机参数受温度变化影响较大,因此需要对电机参数进行辨识。电机参数的初始值可由离线参数辨识方法获取,受温度变化影响的参数可由在线参数辨识方法获取,如定子电阻值和转子时间常数等。通过仿真验证在线辨识参数的准确性,为实验验证提供准确的理论依据。

The accurate control of asynchronous motor depends on the accurate motor parameters,which are greatly affected by the temperature change.Therefore,it is necessary to identify the motor parameters.The initial value of motor parameters can be obtained by offline identification method,and the parameters affected by temperature change can be obtained by on-line identification method,such as stator resistance value and rotor time constant.The accuracy of online parameter calculation was verified by simulation,which provides accurate theoretical basis for the experiment.