基于PSCAD/EMTDC软件的城轨交通单车电气特性建模与仿真

基于PSCAD/EMTDC仿真软件,首先采用面向对象的建模方法对城市轨道交通车辆进行了电气建模,所建模型包括主牵引系统、制动电阻、滤波电路、辅助系统、阻力计算、行驶控制等诸多单元;然后基于该模型利用上海轨道交通某车辆参数进行了仿真和校验,仿真结果表明所建立的仿真模型具有较高的仿真精度,仿真数据与实测数据一致,能够准确地模拟出车辆在不同状态的电气特性与行使特性.

PSCAD/EMTDCBased Modeling and Simulation of Urban Rail Transit Train Electrical Characteristics

The paper was concerned with the modeling and simulation of urban rail transit system, using computer simulation software PSCAD/EMTDC. Based on the electric structure of drive system, train model which includes traction motors inverter and its control system, braking resistor, filter unit, energy storage system and auxiliary system can actually show the electrical characteristics and running characteristics. With the characteristic curves at particular pantograph voltage and particular train load, it can create scientific train control method and get a given acceleration so that it can ensure the train to work normally even when pantograph voltage is low and train load is heavy. Last, the paper completed the dynamic simulation of rail transit and power supply system, with one train at different working conditions.