蓄电池车辆直流电动机起动特性分析

Starting Characteristic Analysis of Traction Motors for Storage Battery Cars

本文应用状态变量分析法对蓄电池车辆直流电动机的三种起动方式的动态起动特性进行了研究.计算了满载时三种起动状态下电机的电流特性、转速特性和转矩特性;计算了各种起动过程的起动损耗和起动时间,同时进行了对比分析.在计及磁饱和效应影响时,本文提出了利用电机磁化曲线,使电机参数随机变化的处理方法.

This paper analyses the traction mortor's starting characteristic of three starting states eurrent, speed, torque characteristic starting loss, and starting time are calculated in case of the rated load, and comparative analiysis is made. How to calculate the saturation effect, is a key problem because it requires a higher precision in the calculation. This paper provides a simple and useful method for calcalating motor parameters by means of the no-load characteristic.