感应电动机锁相调速控制装置

A Control Device of Phase Locking and Speed Adjusting for Induction Motor

应用锁相环原理、计算机技术及变频技术对三相感应电动机进行锁相调速控制，能使感应电动机在转动角上与参考信号频率的相位严格保持一致。此技术适用于同步传动和调速精度要求很高的方面。

This paper describes a method to control a three phase induction motor by phase locking and speed adjusting with the principle of phase locked loop, technique of computer and frequency conversion. The method makes the rotation angle of a induction motor exactly keep with the phase of referencesignal frequency. This technique is available for the synchro drive and those which need high precision of speed adjusting.