摘要
近年来国内相继出现多起高速铁路车网电气耦合系统电气量低频振荡,振荡严重时甚至导致动车组发生牵引封锁。针对这一问题,对产生低频振荡的高速铁路多CRH5动车组接入牵引供电网络耦合系统进行稳定性研究。首先,对我国AT牵引供电网和CRH5动车组四象限脉冲整流器进行了数学建模,并获得了该级联系统的回比矩阵;其次,提出了一种针对该系统稳定性分析的改进的sum-范数判据;然后,深入分析了提出判据的保守性;最后,通过与不同的范数判据比较,进行了高速铁路多CRH5动车组接入牵引供电网络耦合系统的稳定性分析,结果验证了提出的改进sum-范数判据分析的准确性和可靠性。
There have been some low frequency oscillations (LFO) at electric multiple units (EMUs) and traction network coupling system of high-speed railway and the LFO can lead to traction blockade.This paper aims at studying the stability of multi-CRH5 EMUs and traction power-supply network coupled system (M-CETPNCS) which happens LFO.Firstly,modeling of all-parallel auto- transforms (AT) traction power-supply network and dual four quadrant pulse rectifier of CRH5 EMUs,the M-CETPNCS model is correspondingly derived.Secondly,an improved sum-norm criterion is proposed.Furthermore,bring up the improved sum-norm criterion to study the conservatism and stability of this system.Finally,compare different sum criterions with each other to analyze the stability of CRH5 EMUs.The results in this paper verify that the improved criterion is fitful for the stability and reliability of M-CETPNCS.
作者
母秀清
王英
陈思彤
王迎晨
何正友
Mu Xiuqing;Wang Ying;Chen Sitong;Wang Yingchen;He Zhengyou(School of Electrical Engineering,Southwest Jiaotong University,Chengdu,610031,China;School of Automation & Electrical Engineering,Rail Transit Electrical Automation Engineering Laboratory of Gansu Province,Lanzhou Jiaotong University,Lanzhou,730070,China)
出处
《电工技术学报》
EI
CSCD
北大核心
2019年第15期3253-3264,共12页
Transactions of China Electrotechnical Society
基金
国家杰出青年科学基金(VP21ZR1104Y16001)
国家自然科学基金(51767013)
国家科技部重点研发计划(2017YFB1200802)
中国铁路总公司科技研究开发计划重点课题(2017J012-A)
甘肃省教育厅自然科学基金(2017A-020)
甘肃省科技厅自然科学基金(18JR3RA111)资助
