铁道标准设计2018，Vol.62Issue(1)：119-123,5.DOI:10.13238/j.issn.1004-2954.201705110003
三相电流平衡控制装置在铁路动车所中的应用
Application of Three-phase Current Balance Control Device in Railway EMU Depot
摘要
Abstract
In order to improve the overhaul efficiency of the bullet train,a new ground power supply unit based on three-phase current dynamic balance control is proposed to provide power supply for ground maintenance of high speed emus,instead of the conventional AC DC AC power supply.Through the analysis of the shortcomings of the existing traditional AC-DC-AC EMU ground power,and the causes of these defects,the dynamic balance using the three-phase load current regulation technology is put forward to reach the equilibrium state,avoid the single-phase load impact on power transformer and power distribution upper system.As a result,the negative sequence current can not enter the high voltage network,and the three-phase load current of the power transformer is balanced dynamically.The use of this technology can simplify the design of low voltage power distribution,reduce the construction investment,and unify the design of power supply for different power systems.The design scheme of the power system based on three-phase dynamic balancing device is discussed.The test of the prototype proves that the technology can completely eliminate the negative sequence current generated by the single-phase EMU.关键词
动车组/动车运用所/地面电源/三相电流动态平衡Key words
EMU/EMU service depot/Ground power/Dynamic balance of three-phase current分类
交通工程引用本文复制引用
刘卓辉..三相电流平衡控制装置在铁路动车所中的应用[J].铁道标准设计,2018,62(1):119-123,5.基金项目
中国铁路设计集团有限公司科技开发课题(721732) （721732）
