基于MATLAB_SIMULINK的异步电动机软起动控制系统的仿真.pdf

第 30 卷第 6 期辽宁工业大学学报(自然科学版) ,
2010 年 12 月 Journal of Liaoning University of Technology(Natural Science Edition) Dec. 2010


基于 MATLAB/SIMULINK 的
异步电动机软起动
控制系统的仿真

朱延枫,耿大勇,王春霞,赵凤贤
(辽宁工业大学电气工程学院,辽宁锦州 121001)

摘要:针对异步电动机直接起动会产生很大起动电流的特性,提出了一种基于 PID 控制原理的异步电动机
软起动控制方法。利用 MATLAB/SIMULINK 对此闭环控制系统建立了仿真模型并进行了仿真实验。仿真结果表
明采用 PID 控制的软起动控制方法可以有效地限制异步电动机的起动电流,因此该控制方法是正确有效的。
关键词:异步电动机;软起动;PID 控制;仿真
中图分类号:TM343 文献标识码:A 文章编号:1674-3261(2010)06-0356-04

Simulation of Soft-Starting Control System for Asynchronous Motor
Based on MATLAB/SIMULINK

ZHU Yan-feng, GENG Da-yong, WANG Chun-xia, ZHAO Feng-xian
(Electric Engineering College, Liaoning University of Technology, Jinzhou 121001, China)

Key words: asynchronous motor; soft-starting; PID control; simulation
Abstract: Considering the very large starting current brought by the asynchronous motors when
being started, a soft-starting control method for asynchronous motors based on PID control theory was
presented. The simulation model of the closed loop control was built based on MATLAB/ SIMULINK
and simulation was carried out. The simulation results expatiate that starting current of the asynchronous
motor is limited in valid by using the soft-starting method based on PID control, so the PID control
method is correct and valid.

三相异步电动机因具有结构简单、运行可靠、 MATLAB 是一种功能强