三相异步电动机软启动器设计*

作者：孙驷洲，孟樱，王冠凌 日期：2009-02-23/span> 浏览：4563 查看PDF文档

三相异步电动机软启动器设计*

孙驷洲，孟樱，王冠凌
(安徽工程科技学院 安徽省电气传动与控制重点实验室，安徽 芜湖 241000)

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。
关键词：单片机；异步电动机；软启动器
中图分类号：TM343+.2；TP368.2文献标识码：A文章编号：1001-4551(2009)02-0028-03

Design of softstarter in threephase asynchronous motor
SUN Sizhou, MENG Ying, WANG Guanling
 (Anhui Provincial Key Laboratory of Electric and Control, Anhui University of Technology and Science, Wuhu 241000, China)
Abstract: Aiming at reducing the starting current in the threephase asynchronous motor, using 80C196KC and thyristors as core parts, the threephase 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.
Key words: single chip microcomputer (SCM); asynchronous motor; soft starter
参考文献(References):
［1］刘红樱，姜婷，周汉义.异步电动机软启动器设计［J］.机电工程,2007,24（3）:74-76.
［2］ZENGINOBUZ G, CADIRCI I, ERMIS M, et al. Performance optimization of induction motors during voltagecontrolled soft starting［J］. IEEE Transactions on Energy Conversion,2004,19(2):278-288.
［3］许宏纲，徐方逸.软起动器原理及其应用［J］.能源技术，2002，23(3)：132-135.
［4］王毅，赵凯岐.基于DSP的三相异步电机软起动控制器［J］.中小型电机，2001，28(6)：34-36.
［5］刘复华.8XC196KX单片机及其应用系统设计［M］.北京：清华大学出版社，2001.
［6］卢凯，孙国凯,张广军.软启动器的开发与设计［J］.沈阳农业大学学报，2005，36（1）：113-11.