摘要
该文对三相笼型异步电动机定子串不对称电阻的起动过程进行仿真分析。为了得到起动特性,根据三相异步电动机在相坐标系下的瞬态数学模型,编写计算机仿真程序,通过实例对三相笼型异步电动机的定子电路一相串联电阻以及两相串联电阻时的起动过程进行仿真计算,对仿真结果进行比较分析;用对称分量法分析定子电路一相串联电阻以及两相串联电阻时的不对称系统,初步计算起动电阻的数值,然后通过计算机仿真的调整来较准确地加以确定。仿真结果表明,三相异步电动机定子一相或两相串联电阻起动,可以有效地限制起动电流和起动转矩,延长起动时间,适合于某些生产机械对起动的要求。
This paper deals with the transient analysis of three - phase cage - type induction motors during series asymmetrical resistance stating in the stator circuit. MATLAB language is used to develop the computer simulation program by means of the dynamic mathematical model of three - phase induction motors in phase quantities, The program is applied to series asymmetrical resistance starting operation process of three - phase cage - type induction motors in one phases or two phases of the stator circuit. Symmetrical components method is employed in the analysis of the asymmetrical circuit system, the value of the starting resistance is calculated preliminarily, and then, well and truly determined by computer simulation. Emulation results are also comparatively studied here.
出处
《计算机仿真》
CSCD
2005年第9期265-268,共4页
Computer Simulation
关键词
笼型异步电动机
定子串不对称电阻起动
瞬态分析
Three- phase cage- type induction motors
Stator series asymmetrical resistance starting
Transient analysis
