高压电器2017，Vol.53Issue(10)：44-49,6.DOI:10.13296/j.1001-1609.hva.2017.10.008
雷击接触网高速列车车体过电压仿真分析
Simulation and Analysis of Overvoltage on the Body of High Speed Train Caused by Lightning Catenaries
摘要
Abstract
High-speed train contact network is set up along the line,because the higher distance from the ground and vulnerable to lightning,EMU may lead to accidents,and threaten the safe operation of the car body electrical equipment,so it is necessary to carry out the overvoltage analysis for the train when lightning strikes the contact network.In this paper,based on the test of high-speed train circuit diagram,lightning process model of high-speed EMU is built by Pspice when lightning strikes a contact network,and it is analyzed quantitatively that the influence of the length of the grounding cable,grounding resistor parallel with capacitance and reduce the grounding resistance on the body overvoltage.The results of simulation show that:arrester action,the lightning current shunt mainly through the car body,the main transformer overvoltage be effectively suppressed,while the car body potential increased substantially,and the maximum car body potential amplitude where the pantograph is,that is 3,6 car body,is about 3,6 5.07 kV,4.90 kV when parallel capacitor greater than 1.5 mF,grounding mode that resistor paralleled capacitor and directly grounding can effectively inhibit the overvoltage of each car body,and inhibition of the same,either way the overvoltage t maximum car is 3,6 car,and they are reduced to 1.90 kV,compares to the original grounding mode re duces 62.23％,61.4％,but in the way of parallel capacitor,and waveform is flatter.The conclusions provide theoretical basis for further researching lighting overvoltage of high-speed train.关键词
高速列车/雷击/接触网/过电压/接地系统Key words
high-speed train/lightning strike/contact network/overvoltage/grounding system引用本文复制引用
郑玥,刘耀银,万玉苏,高国强,曹保江..雷击接触网高速列车车体过电压仿真分析[J].高压电器,2017,53(10):44-49,6.基金项目
国家自然科学基金(U1234202) （U1234202）
国家自然科学基金(51325704).Project supported by National Natural Science Foundation of China (U1234202),National Natural Science Foundation of China (51325704). （51325704）
