三相异步电动机的软起动

Research on three-phase AC asynchronous motor soft starters

对三相异步电动机软起动方法进行研究.采用AT89C2051微处理芯片为核心的电子电路,实现三相异步电动机平稳软起动,降低起动电流,限制起动转矩;并对电动机的欠流、过载等进行监测报警.延长了电动机的使用寿命.

There are many ways to start the three-phase AC asynchronous motor.Based on the soft start theory,this article introducea a soft starter motor system based on the AT89C2051 microcomputer.This system limited the start current and the torque of the motor,and well protected the motor,and can apply to many industry situation.