基于双向可变电阻模块的杂散电流与轨道电位动态模拟系统  

Stray Current and Rail Potential Dynamic Simulation System Based on Bidirectional Variable Resistance Module

作　　者：杨晓峰[1] 薛皓 郑琼林[1] Yang Xiaofeng;Xue Hao;Trillion Q. Zheng(School of Electrical Engineering Beijing Jiaotong University ,Beijing ,100044 ,China)

机构地区：[1]北京交通大学电气工程学院

出　　处：《电工技术学报》2019年第13期2793-2805,共13页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金重点项目(51737001);中央高校基本科研业务费(2019JBM058)资助

摘　　要：现代城市轨道交通中,杂散电流与轨道电位带来的安全问题日益凸显,上述问题的防治措施在现场验证协调难度大,因此杂散电流与轨道电位模拟系统受到广泛关注。现有模拟系统缺乏对列车运行工况和牵引变电站接地方式的考虑,应用范围受限。为此,提出一种双向可变电阻模块,用以模拟列车的不同运行工况;在此基础上,结合牵引变电站接地方式,进一步提出了三种动态模拟系统,详细研究了其应用场合、演化规律、参数选择和控制策略。仿真和实验结果表明三种模拟系统不仅可用于研究杂散电流与轨道电位的动态分布规律,还可对相应的防治措施开展实验评估,因此具有良好的应用前景。With the rapid development of urban rail transit, the safety problems caused by stray current and rail potential are increasingly serious. However, the stray current and rail potential solutions are difficult to verify in actual metro system. In recent years, the corresponding simulation systems have been extensively studied by researchers around the world. But the existing simulation systems lack the consideration of the train operation conditions and grounding schemes. Therefore, the applications of the simulation systems are limited. For these reasons, a novel bidirectional variable resistance module is firstly proposed to simulate the train movement under different operation conditions. Then three new dynamic simulation systems are further proposed in combination with the grounding schemes of the traction substation. The application scenarios, evolution laws, parameter selection and control strategies are analyzed in detail. The simulation and experimental results show that the above mentioned simulation systems can be employed not only to analyze the effects of stray current and rail potential, but also to hardware evaluations. It shows good application prospect in urban rail transit study.

关 键 词：城市轨道交通 杂散电流 轨道电位 动态模拟系统 双向可变电阻模块 

分 类 号：TM922[电气工程—电力电子与电力传动]