CRH_3型高速动车组整流器预测电流控制仿真研究

Simulation Research on Predictive Current Control Strategy for 4-quadrant PWM Rectifier of CRH_3 High-speed EMUs

对CRH3型高速动车组牵引传动系统采用的四象限整流器,在分析了其基本原理及其控制策略的基础上,利用Matlab/Simulink建立了一种基于预测电流控制方法的四象限脉冲整流器的仿真模型。仿真结果表明,预测电流控制方法可以保持中间直流环节电压的稳定输出,实现调压稳压的功能,并且网侧功率因数近似等于1,谐波含量较小。

Aim to 4-quadrant PWM rectifier of CRH3 high-speed EMUs traction system,a predictive current control method based 4-quadrant PWM rectifier simulation model with Matlab/Simulink was established based on principle and control scheme analysis.The results indicated that this model could output steady DC-link voltage and achieve close to unity power factor and a small quantity THD.