摘要
动车组牵引变流器的性能是评估动车组安全高效运行的重要指标之一。以CRH1A和CRH2A型动车组牵引变流器为对象,基于Matlab/Simulink仿真软件对两种变流器的性能及其优化进行了研究。根据两种变流器主电路实际设计参数分别建立了各自的仿真模型,比较和分析了相应主电路结构及其对应的控制策略对系统输入输出性能的影响。在此基础上,探究了空间矢量脉宽调制SVPWM控制策略应用在CRH2A型动车组变流器中对改善变流器输入输出特性及动态性能的效果,通过仿真建模初步验证了该结论。仿真结果和数据基本符合预期目标。
The performance of EMU traction converter is one of the most important factors for evaluating EMU＇s operation safety and efficiency. This paper takes CRHIA and CRH2A EMU converters as research objects, and carries out research on two converters＇ performance analysis and optimization based on Matlab/Simulink software. This paper accords to actual design parameter of two converters＇ main circuits and builds up simulation models separately, then makes a comparison and analysis of the effects on system＇ s in-out performance imposed by main circuits＇ structures and their control methods. Based on this, this paper researches into SVPWM control method＇ s effect on improving converter in-out characteristics and dynamic performance applied to CRH2A EMU converter. The conclusion is preliminarily verified by simulation modeling. The results and data are basically consistent with expecting objectives.
出处
《计算机工程与应用》
CSCD
2013年第21期255-261,共7页
Computer Engineering and Applications
