地铁弹簧受电弓与高压电路的匹配优化措施  

Matching and optimization measures of metro spring pantograph and high voltage circuit

作　　者：郝晓武 卢俊 Hao Xiaowu;Lu Jun

机构地区：[1]铁科院(北京)工程咨询有限公司,北京100081 [2]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《现代城市轨道交通》2023年第10期55-59,共5页Modern Urban Transit

摘　　要：国内地铁线路大多采用接触网-受电弓受流形式,弹簧受电弓因其结构简单、成本低、维护工作量小等优点逐渐普及。但弹簧受电弓在升弓过程中,会存在较大幅度弹跳,且正线运行过程中,弹跳频率相对较高,在大电流大电压工作环境下,弓网瞬间通断及震荡容易导致高压设备产生过电压,损坏设备。通过不同工况下升弓对比测试,确认升弓阶段导致电压冲击的来源。因此文章基于弹簧受电弓特点,提出列车高压电路匹配设计思路,结合实际线路中出现的故障问题进行分析与优化验证,确保列车供电稳定性,为后续应用提供借鉴。The majority of metro lines in China use the catenary-pantograph current collection method,and spring pantographs are gradually becoming popular due to their simple structures,low costs,and small maintenance workloads.However,during the raising process of spring pantographs,there is significant bouncing,and the bouncing frequency is relatively high during the running of main lines.Under large current and high-voltage working environments,the instantaneous disconnection and oscillation of pantographs and catenaries can easily cause overvoltages in high-voltage equipment,thereby damaging equipment.Through comparative testing under different working conditions,the source of the voltage surges in the pantograph raising stage is confirmed.Therefore,based on the characteristics of spring pantographs,this article proposes the idea of matching the design of high-voltage circuits for trains,carries out analyses,and optimizes and verifies in combination with the fault issues within actual railway lines to ensure the stability of train power supplies.In doing so,it provides a reference for subsequent applications.

关 键 词：地铁 弹簧受电弓 高压电路 过电压 匹配分析 

分 类 号：U231[交通运输工程—道路与铁道工程]