摘要
为了解决由于三相异步电动机启动电流大,对电机造成损坏的问题,采用了80C196KC单片机及功率器件晶闸管为核心,完成了三相异步电动机软启动器的系统设计。采用模块化设计思想,利用16位单片机80C196KC实现了电压斜坡启动、限流启动、软停车等算法,通过改变晶闸管的触发角来实现对电机定子两端的电压调节,解决了电动机启动时对电网和机械设备的冲击,延长了供电设备的寿命,同时能够实现软停车、故障保护、节能等功能。
Aiming at reducing the starting current in the three-phase asynchronous motor, using 80C196KC and thyristors as core parts, the three-phase asynchronous motor soft starter was designed. The algorithm of the voltage slope start, current limit start, soft parking and so on was programmed in modularization. The motor stator voltage was changed by the trigger angles of the thyristors to reduce impact of the starting current on equipments and grid. The soft starter can extend the life of the power supply equipment, and has the function of soft parking, protection, energy conservation and so on.
出处
《机电工程》
CAS
2009年第2期28-30,共3页
Journal of Mechanical & Electrical Engineering
基金
安徽省教育厅资助项目(KJ2007B079)
关键词
单片机
异步电动机
软启动器
single chip microcomputer （SCM）
asynchronous motor
soft starter
