基于matlab三相交流异步电动机软起动性能分析  

The Analysis of Three-phase Asynchronous Motor Soft-start Based on MATLAB

作　　者：郑春香[1] ZHENG Chun-xiang （School of Computer ＆ Information, AnQing Normal University; AnQing 246011, China）

机构地区：[1]安庆师范学院计算机与信息学院,安徽安庆246011

出　　处：《电脑知识与技术》2014年第11期7507-7511,共5页Computer Knowledge and Technology

摘　　要：分析了三相异步电动机的起动特性,基于matlab仿真软件对三相异步电动机直接起动和软起动的起动性能进行仿真。系统采用晶闸管交流调压电路作为软起动的主电路,控制回路由电流负反馈组成,构建了软起动仿真模型。仿真结果表明,限流部分采用电流反馈的闭环控制方法可以达到预期的控制效果,使电动机平稳可靠地起动。Starting characteristics of the three-phase asynchronous motor is analyzed based on the Matlab. The main circuit of thyristor AC voltage regulation circuit is used as the soft start, the current negative feedback control and soft start simulation model is built.Simulation results show that the limiting part adopts closed loop control method of current feedback can achieve the expected control effect, which makes the motor smoothly and reliably start.

关 键 词：三相异步电动机 软起动 仿真分析 

分 类 号：TM343[电气工程—电机]