随着大功率可控硅元件和整流元件的迅速发展,以及由于电子控制技术的完善和推广,铁路运输所使用的电传动机车就有可能用他激电动机去代替传统的串激电动机。作为电传动机车的牵引电动机,必须满足以下几个基本要求: 1、对不同的负荷要求能自动调节牵引力和速度; 2、输出牵引力和运行速度是可以控制的; With the rapid development of high-power thyristor components and rectifier components, as well as the improvement and popularization of electronic control technology, the electric locomotive used in railway transport may use the exciter instead of the traditional series motor. As the electric drive locomotive traction motor, must meet the following basic requirements: 1, for different load requirements can automatically adjust the traction and speed; 2, the output traction and speed can be controlled;