三相异步电动机在变频调速中有关问题的探讨

Investigation into Some Questions about Three -Phase Asynchronous Motor in the Frequency Conversion and Adjustable Speed

对三相异步电动机在变频调速中的电流、转矩特性、发热原因及解决方法和变频变压调速对电机结构的影响做了探讨,目的是使变频电机与变频器合理匹配,使系统获得最佳的控制效果。

This article studies the current,the characteristic of torque,and the cause of heat generation and its solutions of the three - phase asynchronous motor in the frequency conversion and adjustable speed and the influence of the frequency and voltage conversion and adjustable speed on the structure of the ' motor. The purpose is to make the frequency conversion motor rationally match the frequency conversion instrument,and to make the system obtain the best control effect.