基于模块化H桥和Vv接线变压器的高速铁路同相牵引供电系统  

Co-phase Traction Power Supply Systems of High Speed Railway Based on Modular Multilevel Cascaded H Bridge and Vv-connected Transformer

作　　者：黄小红[1] 李群湛[1] 吴萍[2] HUANG Xiaohong;LI Qunzhan;WU Ping(School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;China Railway Eryuan. Engineering Group CO. 佲 L td .丆 Chengdu 610031佲 China)

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]中国中铁二院工程集团有限责任公司,四川成都610031

出　　处：《铁道学报》2016年第6期38-44,共7页Journal of the China Railway Society

基　　金：国家自然科学基金(51177139);高速铁路基础研究联合基金(U1134205);中国铁路总公司科技研究开发计划(2015J005-A)

摘　　要：为解决高速电气化铁路负序和更高次谐波等电能质量问题,提出基于模块化级联H桥与V/V接线变压器相结合的有源补偿同相牵引供电系统。设计了基于模块化级联H桥的"Γ"型直挂型有源补偿装置(MMCHC)拓扑结构,分析补偿特性及工作原理,并给出子模块参数确定方法。与传统同相牵引供电系统相比,本方案有效解决电压等级和功率要求,节省了匹配变压器,并具备更好的过载能力。通过稳态和动态仿真分析验证了本文所提方案的有效性与正确性。To address the power quality problems of high speed railway such as negative sequence and higher or-der harmonic,an active compensation co-phase traction power supply system based on modular multilevel cas-caded H bridge and V/V connection transformer was proposed.The 'Г'type active power compensation to-pology based on modular multilevel cascaded H bridge was designed,to analyze the characteristics and working principle of the compensation,and to give the method of determining the parameters of the submodule.Com-pared with the traditional co-phase traction power supply system,the proposed method,combined with the modular multilevel cascaded H Bridge compensator(MMCHC)with the Vv transformer,effectively met volt-age rating and power requirements,saved the matching transformer,and had better overload capacity.The steady state and dynamic simulation analysis proved the effectiveness and correctness of the proposed method.

关 键 词：高速铁路 同相供电系统 模块化级联H桥 Vv变压器 直挂型 拓扑结构 

分 类 号：U223[交通运输工程—道路与铁道工程]