摘要
弓网电弧对受电弓滑板、接触网导线、供电质量、通讯信号和无线电信号的影响严重威胁列车的运行安全。因此,研究弓网电弧模型,分析弓网电弧的电气特性,对降低弓网电弧造成的危害很有必要。笔者运用MATLAB/Simulink仿真软件,考虑到列车在运行时高速气流场对弓网电弧模型参数变化的影响,建立了弓网电弧模型;通过弓网电弧仿真波形与实验波形的对比分析,验证了弓网电弧模型搭建的合理性。为了对比分析弓网静态燃弧和动态燃弧的差别,利用搭建的弓网电弧模型进行了列车在进行升、降弓操作过程和高速列车运行速度为200 km/h时3种工况下的弓网电弧仿真,最后通过弓网静态燃弧过程中和动态燃弧过程中电弧电气特性的对比分析,得到了相关结论。从而为研究弓网电弧的电气特性提供了理论基础。
The influence of the pantograph-catenary arc on pantograph sliding board, catenary wire, power quality, communication signals and radio signals seriously threatens safe running of high speed trains.Therefore,it is necessary to establish the model of pantograph-catenary arc for analyzing its electrical characteristics and hence reducing the harm of pantograph-catenary arc.In this paper, the simulation software MATLAB/Simulink is employed to establish a pantograph-eatenary arc model considering the influence of high-speed airflow on the model parameters.The simulated waveforms of the model are compared with the experimental ones to verify the rationality of the model.To analyze the difference between static arcing and dynamic arcing,the pantograph-catenary arc is simulated with the model in respective rising and falling processes of pantograph as well as at the train speed of 200 km/h.Finally,conclusions are drawn through comparing the electrical characteristics of arc in both static and dynamic arcing processes.This study may provide theoretical basis for investigating the characteristics of pantograph-catenary arc.
出处
《高压电器》
CAS
CSCD
北大核心
2017年第11期39-45,共7页
High Voltage Apparatus
基金
国家自然科学基金(U1234202
51325704
51107104)
国家973计划(2011CB11105-4)~~
关键词
弓网电弧
MATLAB
电气特性
静态燃弧
动态燃弧
pantograph-catenary arc
MATLAB
electrical characteristics
static arcing
dynamic arcing
