多台感应电机叠加起动引起的电压暂降分析  

Voltage Sag Caused by Superimposed Starting of Multiple Induction Motors

作　　者：刘雅洁[1] 肖先勇[1] 张文海[1] 陈礼频[1] 李浩[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《华东电力》2012年第12期2164-2168,共5页East China Electric Power

基　　金：国家自然科学基金项目(50877049);四川省科技支撑计划项目(2010GZ0256)~~

摘　　要：在对电机起动动态过程进行详细理论分析的基础上,比较了不同容量组合的多台电机叠加起动与单台同容量电机起动造成的电压暂降特征的差异,并对不同时间间隔、不同负载情况下以及不同容量电机叠加起动的情况进行了对比研究,证明不同条件下的感应电机启动,对电压暂降严重程度有不同的影响,为避免严重电压暂降提供了理论依据。采用PSCAD/EMTDC建立仿真模型对分析结果进行了验证说明。Based on the detailed theoretical analysis of the dynamic process of motor starting,this paper compares the voltage sag caused by the superimposed starting of multiple induction motors with different capacity with the voltage sag caused by a single induction motor with the same capacity.Then through the comparative study on the superimposed starting at different time interval,with different load and with different capacity,it is concluded that the induction motor starting in different conditions produces different impacts on the seriousness of voltage sag,providing the theoretical basis for avoiding serious voltage sag.The analysis results are verified and explained by PSCAD/EMTDC-based simulation model.

关 键 词：感应电机 电压暂降 起动 评价指标 PSCAD EMTDC 

分 类 号：TM712[电气工程—电力系统及自动化]