摘要
高速电气化铁路发展迅速,接触网作为担负机车供电的重要设备,位于高铁线路的最上方,极易遭受雷击引起损坏。根据国内外接触网防雷现状和避雷线的保护原理,分析并计算了是否采用架设架空避雷线,接触网遭受雷击的过电压情况及耐雷水平,在PSCAD仿真软件中搭建了接触网遭受雷击的模型,仿真验证了接触网架设避雷线的效果,为高速铁路接触网全线架设架空避雷线的防雷方案提供了依据。
The contact system of locomotive power catenary at the top of the high-speed electrified railway supplies electric power to the locomotive,but it is highly vulnerable to lightning.Based on the principle of lightning protection line and the current situation of the protection at home and abroad,the study analyzes and calculates the over-voltage and lightning withstand level before and after the overhead lightning protection line,and also builds a model of the catenary being struck by lightning in PSCAD simulation software.The simulation verifies the effectiveness of the overhead lightning protection line and provides the basis for installing the overhead lightning protection line on the whole locomotive power catenary.
出处
《电网与清洁能源》
2012年第7期39-45,共7页
Power System and Clean Energy
基金
2010年西安市科技创新支撑计划(CXY1016)~~
关键词
接触网
雷击
架空避雷线
耐雷水平
高铁
contact system
lightning strike
overhead lightning protection line
lightning withstand level
high-speed electrified railway
