大型异步电动机的软起动控制  

Control of soft starting of large asynchronous motor

作　　者：颜伟中[1] 丁宝[1] 杨春蕾 

机构地区：[1]哈尔滨建筑大学机电工程系,黑龙江哈尔滨150006

出　　处：《哈尔滨建筑大学学报》2000年第1期77-79,共3页Journal of Harbin University of Civil Engineering and Architecture

摘　　要：大型异步电动机在轻载运行时 ,效率都较低。利用大功率晶闸管来取代传统的交流接触器 ,用单片机对异步电动机的功率因数角A和触发角Q ,进行两段式控制 ,达到计算机仿真效果[1]。控制调节异步电动机的软起动 ,能有效地降低起动电流 ,使其平滑起动运行 ,达到节约电能与延长异步电动机使用寿命的目的 。Large asynchronous motor has lower working efficiency when it works at light load Using large power controlled silicon tube to replace conventional AC contactor , computer simulation effect is achieved by using monolithic processor to control the power factor A and trigger angle Q of asynchronous motor The control and regulation of the starting of asynchronous motor can effectively reduce the starting of asynchronous motor with a monolithic processor , which effectively reduces the starting current and makes the motor start and work smoothly , thus saving the electric energy and prolonging the life of motor can be reached

关 键 词：单片机 软起动 异步电动机 控制电路 改造 

分 类 号：TM343.06[电气工程—电机] TM343.012