三相异步电动机起动动态过程分析

摘要

On the basis of the three - phase original dynamic mathematical model of asynchronous motor, this article builds simulation mode by using SIMULINK, simulates direct starting, string resistance starting and reduced voltage starting of the asynchronous motor, and proves the advantage of reduced voltage starting. Meanwhile, it conducts numerical calculation by using MatLab software M language, and analysing the mechanical properties of three - phase induction motor, which results are intuitive, accurate and realistic.%在异步电动机三相原始动态数学模型的基础上，应用SIMULINK建立了仿真模型，对异步电机直接起动、串电阻起动和降压起动进行了仿真分析，证实了降压起动的优势。同时运用MatLab软件M语言进行了数值计算，分析了三相异步电动机的机械特性，其结果直观准确符合实际。