350 km/h中国标准动车组辅助变流器并网控制研究
|
摘要
350 km/h中国标准动车组辅助变流器采用无互联线并网技术,提升辅助供电冗余能力。辅助变流器采用PQ下垂控制,以三相同步坐标变换的方式实现对供电母线电压的锁相,以有功功率实现对辅助变流器输出频率控制、无功功率实现对辅助变流器输出电压幅值控制的方式实现并网均流控制。该控制策略在350 km/h中国标准动车组上进行了实车试验,试验结果表明:350 km/h中国标准动车组辅助变流器并网控制效果良好,在动车组辅助变流器启动、投切、负载变化过程中,动态响应快,均流效果好,满足动车组运行的要求。
The auxiliary converter of the 350 km/h CEMUs adopts wireless parallel technology,which improves the power supply redundancy.The auxiliary converter was controlled with PQ droop control.The phase-locking of supply bus voltage was realized with three-phase synchronous coordinate transformation mode,grid-connected flow control was realized by means of active power controlling frequency of auxiliary converter and reactive power controlling output voltage amplitude of auxiliary converter.A realvehicle test had been conducted.The test results show that the 350 km/h CEMUs auxiliary converter has a good grid-connected control effect with fast dynamic response and nice current sharing effect in the process of starting,switching,and load fluctuation,which meets the requirements of the EMUS operation.
The auxiliary converter of the 350 km/h CEMUs adopts wireless parallel technology,which improves the power supply redundancy.The auxiliary converter was controlled with PQ droop control.The phase-locking of supply bus voltage was realized with three-phase synchronous coordinate transformation mode,grid-connected flow control was realized by means of active power controlling frequency of auxiliary converter and reactive power controlling output voltage amplitude of auxiliary converter.A realvehicle test had been conducted.The test results show that the 350 km/h CEMUs auxiliary converter has a good grid-connected control effect with fast dynamic response and nice current sharing effect in the process of starting,switching,and load fluctuation,which meets the requirements of the EMUS operation.
引文
[1]张尧,马皓,雷彪,等.基于下垂特性控制的无互联线逆变器并联动态性能分析[J].中国电机工程学报,2009,29(3):42-48.
[2]张丹红,李乐,刘开培.无互联线逆变器并联控制的一种改进下垂算法[J].武汉大学学报(工学版),2006,39(5):97-101.
[3]中国铁路总公司.关于印发《时速350公里中国标准动车组暂行技术条件》的通知:铁总科技[2014]50号[S].北京:中国铁路总公司,2014.
[4]陈杰.城轨列车辅助供电系统高品质波形控制及无互联线并联关键技术研究[D].北京:北京交通大学,2014.
[5]FUKUDA S,MATSUSHITA K.A control method for parallelconnected multiple inverter systems[C]//IET.1998 Seventh International Conference on Power Electronics and Variable Speed Drives(IEE Conf.Publ.No.456).London:IET,1998:175-180.
[6]洪小圆,吕征宇.基于同步参考坐标系的三相数字锁相环[J].电工技术学报,2012,27(11):203-210.
[7]龚锦霞,解大,张延迟.三相数字锁相环的原理及性能[J].电工技术学报,2009,24(10):94-99.
[2]张丹红,李乐,刘开培.无互联线逆变器并联控制的一种改进下垂算法[J].武汉大学学报(工学版),2006,39(5):97-101.
[3]中国铁路总公司.关于印发《时速350公里中国标准动车组暂行技术条件》的通知:铁总科技[2014]50号[S].北京:中国铁路总公司,2014.
[4]陈杰.城轨列车辅助供电系统高品质波形控制及无互联线并联关键技术研究[D].北京:北京交通大学,2014.
[5]FUKUDA S,MATSUSHITA K.A control method for parallelconnected multiple inverter systems[C]//IET.1998 Seventh International Conference on Power Electronics and Variable Speed Drives(IEE Conf.Publ.No.456).London:IET,1998:175-180.
[6]洪小圆,吕征宇.基于同步参考坐标系的三相数字锁相环[J].电工技术学报,2012,27(11):203-210.
[7]龚锦霞,解大,张延迟.三相数字锁相环的原理及性能[J].电工技术学报,2009,24(10):94-99.