基于Matlab的某型动车组再生制动发电工况分析与仿真

Matlab软件包含的SimPowerSystem模块库是电力电子与电气传动领域仿真的一种优秀工具软件。对于普通发电机而言,可以直接通过电机轴输入转速,这时的转子转速就和发电机的机械部分无关而只与拖动电机运行的原动机转速有关。也可以从电机轴输入转矩,这时发电机转速由转子自身转动惯量、机械摩擦以及电磁转矩等因素共同决定。由于动车组再生制动过程需要输入包含了一定速度下最大的转矩与随时间变化的转速,故建立了可同时输入转速和转矩的牵引电机制动发电工况数学模型,分析再生制动中的发电过程。

Discuss and Analysis on Regenerative Braking of EMU Based on Matlab

For ordinany generators,we can enter the speed directly through the shaft,thus the rotor speed is independent of the mechanical parts of generators and is only related with the speed of dragging motor;and also enter the torque through the shaft,thus the rotor speed is determined by the rotorinertia,mechanical friction,electromagnetic torque and other factors.The regenerative braking process of EMU should contain the above two situations,so this paper establishes the traction motor's regenerative condition m...