考虑过渡函数的电气化铁路弓网离线电弧建模与验证分析  

Modeling and Verification Analysis of Pantograph-catenary Arc of Electrified Railway Considering Transition Function

作　　者：陆颖 王英 陈小强[1] LU Ying;WANG Ying;CHEN Xiaoqiang(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070

出　　处：《高压电器》2023年第2期97-103,共7页High Voltage Apparatus

基　　金：国家自然科学基金地区项目(51767013);甘肃省科技厅自然科学基金项目(18JR3RA111);兰州铁路局科技研究开发课题(LTKY2020-068)。

摘　　要：随着列车速度的提高,弓网离线电弧现象频繁发生,对列车的安全运行产生影响。因此有必要研究弓网电弧模型,分析其电气特性。在计及横向吹弧的Habedank电弧模型基础上,以电弧电流作为变量构建了过渡函数,较合理地实现了串联电弧模型的动态电阻分配。在MATLAB/Simulink仿真软件中,通过S-函数的编写实现了电弧模型的仿真,并将对得出的仿真波形与实验波形进行对比分析,验证了所搭建模型合理性。结果表明:列车速度增大,电弧电流不会随之增大,而是基本保持不变,但电弧电压却会随之增大,其中燃弧电压增大程度最大。With the increase of train speed,the pantograph-catenary arc occurs frequently,which affects safe operation of high-speed trains. It is therefore necessary to study the pantograph-catenary arc model and analyze its electrical characteristics. On the basis of the Habedank arc model which takes into account the transverse arc blowing,a transition function is constructed with the arc current as a variable,which reasonably achieves the dynamic resistance distribution of series arc model. The simulation of arc model is achieved by writing S-functions in MATLAB/Simulink simulation software,and the rationality of the set up model is verified by way of comparing and analyzing the obtained simulation and experimental waveform. The result shows that the arc current will not increase with the increase of train speed,but basically remains unchanged. However,the arc voltage will increase accordingly,in which the arcing voltage increases the most.

关 键 词：弓网离线电弧 电气特性 横向吹弧 过渡函数 动态电阻 S-函数 

分 类 号：U225[交通运输工程—道路与铁道工程] U264.34[机械工程—车辆工程]