异步电机参数辨识方法的研究

A Research for Parameter Estimation of Induction Motor

在无速度传感器矢量控制系统中,转速估算的精度在很大程度上依赖于电机参数.文章从电机的数学模型出发,提出了一种利用变频器自身的资源来对电机参数进行辨识的方案,仿真结果证明了这种方法简单易行,能够为无速度传感器矢量控制系统提供较高精度的电机参数,具有实用性.

In a speed sensorless vector control system,the precision of speed estimation is relied on the precision of motor parameter.According to the mathematical model of the induction model,a new method to estimate parameter of motor has been achieved,which use own resource of the transducer. The emulational results indicates that this method can offer quite accurate electrical parameter for speed sensorless vector control system.