基于矩阵变换器的动车组辅助供电系统
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摘要
动车组电源系统是运行基础,保障电源持续工作,优选基于矩阵变换器的交流—直流—交流结构,设计一种新型的辅助供电系统。应用整流侧采用PWM控制技术,逆变侧采用SVPWM调制的策略;以CRH2型车为例,结合MATLAB/Simulink建模和仿真技术,对供电系统进行验证。结果表明:优化后的系统结构更加紧凑;三相电压、电流输出波形稳定,功率因数更接近于1;以额定功率运行时,波形无明显失真或畸变。基于矩阵变换器的动车组辅助系统具有可行性,能够保障列车更为安全、可靠、舒适运行。
A new type of auxiliary power supply system is designed for EMUs. The matrix converter based AC-DC-AC structure is optimized. The PWM control technology and the SVPWM modulation strategy are adopted on the inverter side and the rectifier side, respectively. By taking CRH2 vehicle as an example and combined with MATLAB/Simulink modeling and simulation, it shows that the optimized system structure is more compact. The three-phase voltage and current output waveform is stable, and the power factor is closer to 1. When operated on the rated power, the waveform has no obvious distortion. The auxiliary system of EMU based on the matrix converter is feasible, ensuring that the train is operated on a safer, more reliable and more comfortable status.
A new type of auxiliary power supply system is designed for EMUs. The matrix converter based AC-DC-AC structure is optimized. The PWM control technology and the SVPWM modulation strategy are adopted on the inverter side and the rectifier side, respectively. By taking CRH2 vehicle as an example and combined with MATLAB/Simulink modeling and simulation, it shows that the optimized system structure is more compact. The three-phase voltage and current output waveform is stable, and the power factor is closer to 1. When operated on the rated power, the waveform has no obvious distortion. The auxiliary system of EMU based on the matrix converter is feasible, ensuring that the train is operated on a safer, more reliable and more comfortable status.
引文
[1]刘建强,郭怀龙,杜会谦,等.CRH3型动车组辅助供电系统可靠性研究[J].铁道学报,2015(11):44-51.
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[3]王红红.基于双桥矩阵变换器异步电动机矢量控制系统的研究[D].兰州:兰州交通大学,2014.
[4]Podlesak T F,Katsis D C,Wheeler P W,et al.A 150-k VA vectorcontrolled matrix converter induction motor drive[J].IEEE Transactions on Industry Applications,2005,41(3):841-847.
[5]Andreu J,De Alegria I M,Kortabarria I,et al.Switching Frequency Behaviour for a Practical Matrix Converter[C].IEEE Industrial Electronics,IECON,Conference on IEEE,2006:1667-1672.
[6]蔡灏,林桦,尹迎春.矩阵变换器输入滤波器和箝位电路设计[J].电力电子技术,2007,41(1):23-25.
[2]付翔.高速动车组辅助供电系统研究[D].成都:西南交通大学,2010.
[3]王红红.基于双桥矩阵变换器异步电动机矢量控制系统的研究[D].兰州:兰州交通大学,2014.
[4]Podlesak T F,Katsis D C,Wheeler P W,et al.A 150-k VA vectorcontrolled matrix converter induction motor drive[J].IEEE Transactions on Industry Applications,2005,41(3):841-847.
[5]Andreu J,De Alegria I M,Kortabarria I,et al.Switching Frequency Behaviour for a Practical Matrix Converter[C].IEEE Industrial Electronics,IECON,Conference on IEEE,2006:1667-1672.
[6]蔡灏,林桦,尹迎春.矩阵变换器输入滤波器和箝位电路设计[J].电力电子技术,2007,41(1):23-25.