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.
作者
黄小红
李群湛
吴萍
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)
出处
《铁道学报》
EI
CAS
CSCD
北大核心
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)
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
high speed railway
co-phase traction power supply system
modular multilevel cascaded H bridge compensator(M M C H C )
V v transformer
direct-connected power flow controller
topology
