Simulation Analysis of Crosstalk of Complex Cable Beams in High Speed EMUs

Abstract

Based on the cable transmission line simulation method, crosstalk simulation analysis is performed on complex cable harnesses commonly used in high-speed EMUs such as power cables, DC power cables, communication cables and signal cables. Through the simulation operation, the waveform and amplitude of the crosstalk signal on the victim cable under different types of interference cables are analyzed. It is concluded that the crosstalk of the power cable to other types of cables is particularly obvious. By changing the parameters of interference signal frequency, cable spacing and cable length, the influence of the above parameters on the crosstalk of complex cable bundles is studied. The research results of cable crosstalk are analyzed and summarized, which can be used for wiring and design of complex cables in practical engineering. Introduction With the increasing application of high-speed EMUs, in order to ensure the safe operation of high-speed EMUs, the electromagnetic compatibility of EMU equipment systems has become more and more prominent. For high-speed EMUs, a large number of different types of complex cable bundles, such as power cables, control cables, and signal communication cables, are distributed in a limited space. The crosstalk analysis between cables has become an important part of the electromagnetic compatibility analysis of high-speed EMUs. Research Status At present, some scholars have studied the crosstalk of single-source and dual-source injected into one end of the cable, and obtained the waveform of the induced current [1]. Some scholars have analyzed and optimized the crosstalk of EMU cables and harnesses [2]. Some scholars have studied the electromagnetic interference problem of idle EMUs caused by crosstalk between lines, and optimized the wiring of high-speed EMUs [3, 4]. Some scholars have extended the basic theory of transmission lines for the coupling problem of EMU high-voltage cables and sensor cables, and established a crosstalk theoretical model for two commonly used shielded cables [5]. On the basis of the cable layout design of the EMU traction converter and the electrical component arrangement of the main circuit, some scholars analyzed the influence of the internal electromagnetic compatibility of the traction converter due to the components and the wiring harness, especially the problem of the electromagnetic compatibility of the cable [6]. In summary, at home and abroad, the research on cable crosstalk of EMUs mainly involves crosstalk between power cables, and less research on other types of cable crosstalk. In this paper, the crosstalk of complex cables of EMUs is studied in detail and in-depth. The research results can be used to guide the wiring and laying of complex cable bundles in practical engineering. Cable Transmission Line Simulation Method The cable simulation software performs electromagnetic simulation calculation on the cable based on the transmission line theory. The simulation steps are as follows: 2nd International Conference on Electrical and Electronic Engineering (EEE 2019) Copyright © 2019, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Advances in Engineering Research, volume 185