利用电机磁化电流无功功率实现转速的在线辨识

On-line Speed Recognizing with the Reactive Power of Magnetizing Current for Asynchronous Motor

文章介绍了一种采用电机磁化电流无功功率作为参考模型的异步电机模型参考自适应转速辨识法 ,并结合直接转矩控制进行了仿真和实验研究。其结果表明采用上述控制策略的转速辨识系统具有良好的稳态性能 。

This paper introduces a sensorless speed recognizing method with model reference adaptive control. In this scheme the reactive power of induction motor magnetizing current is taken as the reference model. Simulation works and experimental works are done to study this means. The results indicate that with this control algorithm the speed recognizing system get good static performance, and the dynamic performance will be improved if faster DSP is used.