三相异步电动机三种起动方式的比较研究  

The Comparative Study of Three Kinds of Starting Way for Three-Phase Asynchronous Motor

作　　者：荣军[1,2] 李一鸣[3,2] 万军华[1,2] 张敏[1,2] 陈曦[1,2] 

机构地区：[1]湖南理工学院信息与通信工程学院,湖南岳阳414006 [2]工程车辆轻量化与可靠性技术湖南省高校重点实验室,长沙410014 [3]湖南理工学院计算机学院,湖南岳阳414006

出　　处：《湖南理工学院学报（自然科学版）》2015年第1期50-54,共5页Journal of Hunan Institute of Science and Technology(Natural Sciences)

基　　金：工程车辆轻量化与可靠性技术湖南省高校重点实验室基金资助(2014kfjj01)

摘　　要：研究了三相异步电动机直接起动、定子串电阻起动以及软起动三种起动方式的工作原理,从理论上分析了它们各自起动电流和转速的工作特性,接着在MATLAB/SIMULINK中对这三种起动方式进行了建模与仿真.最后通过对仿真结果的比较分析可知,相比较直接起动和定子串电阻起动方式,软起动能够明显减小起动电流,而且在转速方面,软起动使转速变化更加平缓.The paper studies the working principle of direct starting, series resistance starting of stator and soft starting for three-phase asynchronous motor, and analyzes the working characteristic of starting current and starting speed theoretically , then the paper makes modeling and simulation for three methods for starting based on MATLAB/SIMULINK. Finally, the paper makes the comparing analysis for the simulation results, and compared with direct starting and series resistance starting of stator, soft starting can significantly reduce the starting current, and in terms of speed, soft starting can make the speed change more smoothly.

关 键 词：异步电动机 直接起动 串电阻起动 软起动 

分 类 号：TM46[电气工程—电器]