弓网离线电弧电磁干扰仿真的研究进展

Research Progress of Electromagnetic Interference Simulation of Pantograph-catenary Arc

为研究弓网离线引起的电磁干扰对列车的影响,从弓网离线电弧建模方法和电磁干扰仿真两方面归纳总结了国内外研究现状。阐述了弓网电弧的形成机理、现有的基础电弧模型和考虑了速度和空气气流等条件的多种弓网离线电弧模型。弓网离线电弧的电磁干扰仿真表明,弓网电弧产生电磁干扰的根源在于弓网间剧烈变化的瞬态恢复电压,弓网多次燃弧是造成电力系统谐波污染的重要原因。弓网离线电弧电磁干扰的研究成果可用于指导列车车载设备的布置,提升列车的电磁兼容性。

In order to investigate the influence of electromagnetic interference on train caused by pantograph-catenary arc,the research status at home and abroad is summarized from two aspects of pantograph-catenary arc modeling method and electromagnetic interference simulation.The formation mechanism of pantograph arc,the existing basic arc model,and various pantograph-catenary arc models related to speed and air flow are described.The electromagnetic interference simulation of pantograph-catenary arc shows that the source of electromagnetic interference is the dramatic change of transient recovery voltage between pantograph and grid.The multiple arcing of pantograph and grid is an important cause of harmonic pollution in the power system.The research results of electromagnetic interference of pantograph-catenary arc can be used to guide the layout of train on-board equipment and improve the electromagnetic compatibility of train.