牵引变流器优化控制仿真研究
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摘要
在电力机车牵引变流器优化控制的研究中,动车组牵引变流器是动车组完成电能转换和传递的关键部件,性能好坏直接关系到动车组能否安全可靠运行。针对CRH2A型牵引变流器输出电压变化率大、谐波含量高等问题,对多电平技术在牵引变流器中的应用进行了研究。首先分析了二极管箝位型五电平变流器(DCMLC)和模块化五电平变流器(M2LC)的工作原理及控制策略,分别构建了牵引变流器的优化模型;并根据CRH2A型牵引变流器主电路实际设计参数应用Matlab仿真软件对五电平DCMLC和M2LC分别进行了建模和仿真,比较和分析了牵引变流器中不同逆变器电路拓扑结构及其对应的控制策略对系统输入输出性能的影响。仿真结果初步验证了两种优化模型对CRH2A型牵引变流器性能的改善效果。
A traction converter is a critical component to implement electrical energy conversion and transmission for EMU. Its performance is directly related to the EMU's operation safety and reliability. Considering the large output voltage change rate and the high harmonic content,research on multilevel technology applied to traction converter was conducted. Firstly,the working principle and control strategy of the diode clamped five- level converter( DCMLC) and modular five- level converter( M2LC) were analyzed. The optimization models of traction converter were built based on the above topologies. Based on the actual design parameters of the traction converter's main circuits of CRH2 A,the modeling and simulation of the five- level DCMLC and M2 LC were separately conducted on Matlab platform. Comparison and analysis of the effects on system's input / output performance imposed by different traction inverter circuits' structures and the corresponding control methods were conducted. The simulation results preliminary verify the effect of the improvements of the two optimization models.
A traction converter is a critical component to implement electrical energy conversion and transmission for EMU. Its performance is directly related to the EMU's operation safety and reliability. Considering the large output voltage change rate and the high harmonic content,research on multilevel technology applied to traction converter was conducted. Firstly,the working principle and control strategy of the diode clamped five- level converter( DCMLC) and modular five- level converter( M2LC) were analyzed. The optimization models of traction converter were built based on the above topologies. Based on the actual design parameters of the traction converter's main circuits of CRH2 A,the modeling and simulation of the five- level DCMLC and M2 LC were separately conducted on Matlab platform. Comparison and analysis of the effects on system's input / output performance imposed by different traction inverter circuits' structures and the corresponding control methods were conducted. The simulation results preliminary verify the effect of the improvements of the two optimization models.
引文
[1]J Rodriguez,J S Lai,F Z Peng.Multilevel inverters:a survey of topologies,controls,and applications[J].Industrial Electronics,IEEE Transactions on,2002,49(4):724-738.
[2]高跃,李永东.二极管钳位型五电平逆变器电容电压平衡域研究[J].电工技术学报,2008,23(1):77-78.
[3]陶生桂,等.二极管钳位式多电平逆变器的拓扑结构分析[J].同济大学学报:自然科学版,2003,31(10):1217-1222.
[4]王琛琛,李永东.多电平变换器拓扑研究及其最新进展[J].电力电子,2008,(4):5-11.
[5]A Nabae,I Takahashi,H Akagi.A new neutral-point-clamped PWM inverter[J].Industry Applications,IEEE Transactions on,1981,(5):518-523.
[6]辛想,张庆苑.二极管箝位型多电平逆变器载波PWM控制方法的研究[J].变频器世界,2007,(1):56-57.
[7]M Glinka,R Marquardt.A new AC/AC multilevel converter family[J].Industrial Electronics,IEEE Transactions on,2005,52(3):662-669.
[8]刘玉洁,等.CRH2型动车组谐波电流分析及仿真[J].电力电子,2009,(4):38-41.
[9]杨超,陶生桂,谢维达.二极管箝位式多电平逆变器拓扑结构分析与控制策略研究[J].中国科技信息,2009,(3):136-137.
[10]佘致延,曹达,彭永进.二极管箝位五电平变换器控制方法[J].电力自动化设备,2011,31(4):47-49.
[11]J Dorn,H Huang,D Retzmann.A new multilevel voltagesourced converter topology for HVDC applications[J].CIGRE Session.Paris,France:CIGRE,2008,10.
[12]谭玉茹,苏建徽.基于移相载波的模块化多电平换流器控制方法研究[J].高压电器,2012,48(8):56-60.
[13]孙浩,杨晓峰.CPS-SPWM在模块组合多电平变换器中的应用[J].北京交通大学学报,2011,35(5):132-135.
[14]赵昕,等.采用载波移相技术的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2011,31(21):48-55.
[15]M Hagiwara,H Akagi.PWM control and experiment of modular multilevel converters[C].Power Electronics Specialists Conference,2008.PESC 2008.IEEE,2008:154-161.
[16]M Hagiwara,H Akagi.Control and experiment of pulse-widthmodulated modular multilevel converters[J].Power electronics,IEEE Transactions on,2009,24(7):1737-1746.
[17]M Hagiwara,K Nishimura,H Akagi.A medium-voltage motor drive with a modular multilevel PWM inverter[J].Power Electronics,IEEE Transactions on,2010,25(7):1786-1799.
[2]高跃,李永东.二极管钳位型五电平逆变器电容电压平衡域研究[J].电工技术学报,2008,23(1):77-78.
[3]陶生桂,等.二极管钳位式多电平逆变器的拓扑结构分析[J].同济大学学报:自然科学版,2003,31(10):1217-1222.
[4]王琛琛,李永东.多电平变换器拓扑研究及其最新进展[J].电力电子,2008,(4):5-11.
[5]A Nabae,I Takahashi,H Akagi.A new neutral-point-clamped PWM inverter[J].Industry Applications,IEEE Transactions on,1981,(5):518-523.
[6]辛想,张庆苑.二极管箝位型多电平逆变器载波PWM控制方法的研究[J].变频器世界,2007,(1):56-57.
[7]M Glinka,R Marquardt.A new AC/AC multilevel converter family[J].Industrial Electronics,IEEE Transactions on,2005,52(3):662-669.
[8]刘玉洁,等.CRH2型动车组谐波电流分析及仿真[J].电力电子,2009,(4):38-41.
[9]杨超,陶生桂,谢维达.二极管箝位式多电平逆变器拓扑结构分析与控制策略研究[J].中国科技信息,2009,(3):136-137.
[10]佘致延,曹达,彭永进.二极管箝位五电平变换器控制方法[J].电力自动化设备,2011,31(4):47-49.
[11]J Dorn,H Huang,D Retzmann.A new multilevel voltagesourced converter topology for HVDC applications[J].CIGRE Session.Paris,France:CIGRE,2008,10.
[12]谭玉茹,苏建徽.基于移相载波的模块化多电平换流器控制方法研究[J].高压电器,2012,48(8):56-60.
[13]孙浩,杨晓峰.CPS-SPWM在模块组合多电平变换器中的应用[J].北京交通大学学报,2011,35(5):132-135.
[14]赵昕,等.采用载波移相技术的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2011,31(21):48-55.
[15]M Hagiwara,H Akagi.PWM control and experiment of modular multilevel converters[C].Power Electronics Specialists Conference,2008.PESC 2008.IEEE,2008:154-161.
[16]M Hagiwara,H Akagi.Control and experiment of pulse-widthmodulated modular multilevel converters[J].Power electronics,IEEE Transactions on,2009,24(7):1737-1746.
[17]M Hagiwara,K Nishimura,H Akagi.A medium-voltage motor drive with a modular multilevel PWM inverter[J].Power Electronics,IEEE Transactions on,2010,25(7):1786-1799.