Simulation Analysis of Vehicle Body Overvoltage Caused by EMU Operating Main Circuit Breaker based on 3D Vehicle Body Modeling

An Zhang, Qingpeng Feng, Jianqiong Zhang, Zhongkang Yuan, Qingfeng Wang

2020

Abstract

At present, China's high-speed railway is in the process of rapid development, followed by the safety of emu has attracted increasing attention. In the course of emu running, the main circuit breaker will be frequently operated in the process of excessive phase, lifting bow and so on, thus causing transient overvoltage. However, the shielding layer of the high-voltage cable is connected to the vehicle body, which will make the over-voltage coupling to the vehicle body, forming the over-voltage of the vehicle body and endangering the driving safety. In this paper, based on the three-dimensional vehicle body model and based on the analysis of the overvoltage generation principle of the vehicle body, the electromagnetic interference coupling path is obtained. Considering the actual working conditions of the standard emu, the interference signal caused by the disconnection of VCB is taken as the interference source to analyze the over-voltage distribution of the vehicle body caused by the disconnection of VCB. The actual three-dimensional model of the vehicle body and the high-voltage cable is built and embedded into the circuit module, which breaks the traditional equivalent method of equating the vehicle body with the four-side impedance, and the over-voltage characteristics of the vehicle body at a specific position can be obtained. The simulation results show that the generated overvoltage is about 2.9kv, the oscillation time is about 25us, and the frequency spectrum is mainly 1.62MHz, which conforms to the basic characteristics of overvoltage.

Paper Citation

in Harvard Style

Zhang A., Feng Q., Zhang J., Yuan Z. and Wang Q. (2020). Simulation Analysis of Vehicle Body Overvoltage Caused by EMU Operating Main Circuit Breaker based on 3D Vehicle Body Modeling.In Proceedings of the International Symposium on Frontiers of Intelligent Transport System - Volume 1: FITS, ISBN 978-989-758-465-7, pages 57-63. DOI: 10.5220/0010057400570063

in Bibtex Style

@conference{fits20,
author={An Zhang and Qingpeng Feng and Jianqiong Zhang and Zhongkang Yuan and Qingfeng Wang},
title={Simulation Analysis of Vehicle Body Overvoltage Caused by EMU Operating Main Circuit Breaker based on 3D Vehicle Body Modeling},
booktitle={Proceedings of the International Symposium on Frontiers of Intelligent Transport System - Volume 1: FITS,},
year={2020},
pages={57-63},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010057400570063},
isbn={978-989-758-465-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Symposium on Frontiers of Intelligent Transport System - Volume 1: FITS,
TI - Simulation Analysis of Vehicle Body Overvoltage Caused by EMU Operating Main Circuit Breaker based on 3D Vehicle Body Modeling
SN - 978-989-758-465-7
AU - Zhang A.
AU - Feng Q.
AU - Zhang J.
AU - Yuan Z.
AU - Wang Q.
PY - 2020
SP - 57
EP - 63
DO - 10.5220/0010057400570063