摘要
为分析高速动车组车载真空断路器分、合时车体操作过电压特性,基于某型动车组电气结构,构建仿真模型,介绍现场试验并给出试验结果。仿真结果表明:2车过电压值最大,达到5.12?k V;2—6车依次减小,各车过电压高频振荡周期都约为0.6?μs,过电压在7?μs后衰减到几百伏。仿真与试验结果误差率为3%~26%,仿真与试验中各车过电压高频振荡周期、衰减时间、分布特性具有较好的一致性。
In order to analyze the switching overvoltage characteristics of high-speed EMU car bodies when the vacuum circuit breaker is on and off, this paper builds a simulation model based on the electrical structure of EMU train of a certain type, and introduces a field test and its results. The simulation results show that the overvoltage value is at its maximum （5.12 kV） in Car 2, and is on the decline from Car 2 to 6. The overvoltage high-frequency oscillation periods of each car is about 0.6 p.s, and the overvoltage decays to several hundred volts after 7 μs. The error rate of simulation and test results ranges between 3% and 26%. There is a consistency among the overvoltage high-frequency oscillation periods of all cars in the simulation and test, and it is the same with decay times and distribution characteristics.
作者
丁勇
DING Yong(CRRC Changchun Railway Vehicles Co Ltd, Changchun Jilin 130062, China)
出处
《中国铁路》
2017年第9期68-72,78,共6页
China Railway
