电铁牵引变压器容量与电网供电能力分析-中国电机工程学会.PDF

2007 中国电机工程学会年会论文集·广东东莞 电铁牵引变压器容量与电网供电能力分析 1 1 2 2 1 段晓波 ，赵琛珑 ，冯喜春 ，刘勇 ，王颖 （1.河北省电力研究院，河北石家庄 0500211，2.华北电力大学，河北保定 071003） Electrified Railway’s Traction Transformer Capability And System Current Supply Ability Analysis 1 1 2 2 1 DUAN Xiao-bo ,ZHAO Chen-long , FENG Xi-chun , LIU Yong ,WANG Ying (1. Hebei Electric Power Research Institute, Shijiazhuang 050021,Hebei Province, China; 2. North China Electric Power University, Baoding 071003, Hebei Province, China) ABSTRACT: This article discusses the aspects 引言 about electrified railway’s current supply 在我国，电气化铁路由于具有运输能力 characteristic, current supply demand, traction’s load 大、能源消耗少、运营成本低、行驶速度快、 magnitude, system current supply ability, power 环境维护和工作条件好等优势，近年来得到了 quality qualification etc, introduce how to define the 快速发展。由于我国的电气化铁路采用的是单 relationship between traction’s load and system 相工频供电，电铁牵引负荷具有非线性、冲击 current supply capability in planning traction 性和波动性，对为其供电的电力系统变电站母 accessed power system, in order to satisfy traction 线除造成谐波和负序污染外，还造成系统母线 operate normally and guarantee other loads’ voltage 运行电压较大的波动和偏移。 quality when traction’s load wave. 目前，我国电铁牵引变电所接入电网的电 DECLARATION: This article is part research contents of 压等级为 110kV 和 220kV 两级,且多数接入 State Grid Corp of China (SGCC) graveness scientific 110kV 电压。随着我国高速电气化铁路的快速 originality innovation subject “improve system current 发展,将会有更多的电铁牵引变电所接入电 supply credibility key technology -electrified railway’s 网。对于电铁牵引变电所来说，保障可靠供电 current supply key technology-electrified railway’s current 是首要条件；而对于电网来说，怎样从供电能 supply planning method research”. Subject number: 力、供电电能质量和供电可靠性等方面，满足 SGKJ[2007]102. 电气化牵引负荷的需求，是电网规