西南交通大学学报Issue(4)：559-568,10.DOI:10.3969/j.issn.0258-2724.2014.04.001
论新一代牵引供电系统及其关键技术
On New Generation Traction Power Supply System and Its Key Technologies for Electrification Railway
摘要
Abstract
Unlike the traditional traction power supply system which enables the electrified railway traction substation to be connected to power grid in a way of phase rotation,a new generation traction power supply system without phase splits in power grid was proposed. Three key technologies of this system were discussed. First,the combined cophase traction power supply system was used for traction substation to realize negative sequence current control and eliminate phase split at the exit of substation. Second,new bilateral power supply technology was applied to eliminate the phase split at section post and reduce the influence of balance current on power grid. Meanwhile,power factor should be adjusted to ensure the voltage level of traction network. Third,the segment power supply and measurement control technology was used to divide the supply section into several segments and apply synchronous measurement technology to quickly and accurately diagnose fault and its location. Thus,the effects of faults can be limited to a minimum degree. Also,the economy and reliability of new generation traction power supply system were analyzed.关键词
新一代牵引供电系统/组合式同相供电/新型双边供电/牵引网分段供电与测控Key words
new generation traction power supply system/combined cophase power supply/new bilateral power supply/segments power supply and measure control technology分类
交通工程引用本文复制引用
李群湛..论新一代牵引供电系统及其关键技术[J].西南交通大学学报,2014,(4):559-568,10.基金项目
国家自然科学基金资助项目（51307143，51307142）；中国铁路总公司科技研究开发计划课题 （）
