Accurate Modeling of CCS Combo Type 1 Cable and Its Communication Performance Analysis for High-Speed EV-EVSE Charging System

This paper addresses the issue of electromagnetic interference (EMI) in electric vehicle supply equipment (EVSE) charging cables, which can disrupt the communication signal for the real-time monitoring of the charging status, leading to the termination of charging. We propose a dedicated measurement...

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Bibliographic Details
Published in:Energies (Basel) 2023-08, Vol.16 (16), p.5947
Main Authors: Park, Sanghwa, Lee, Euibum, Noh, Yeong-Hoon, Choi, Dong-Hoon, Yook, Jong-gwan
Format: Article
Language:English
Subjects:
Cables
combined charging system
Communication
Design
Electric properties
Electric vehicles
Electricity distribution
Electromagnetism
Measurement techniques
multiconductor transmission line
Simulation
time domain reflectometry
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Summary:This paper addresses the issue of electromagnetic interference (EMI) in electric vehicle supply equipment (EVSE) charging cables, which can disrupt the communication signal for the real-time monitoring of the charging status, leading to the termination of charging. We propose a dedicated measurement jig for the Combined Charging System Combo Type 1 (CCS-CT1) cable structure and models its electrical characteristics of the jig using the impedance peeling technique for de-embedding. The obtained pure S-parameters of CCS-CT1 are then used to conduct a simulation of the signal integrity problem caused by Gaussian noise, which is the worst-case scenario that can occur in a typical charging system. This paper suggests that the root cause of this problem may be related to the high-power AC/DC conversion device included in the EVSE, which uses a switch-mode power conversion (SMPC) method that involves nonlinear operation and can result in increased harmonic noise and a more complex signal protocol for precise control. Finally, this study provides insights into the challenges of implementing high-speed charging systems and offers a solution for obtaining the accurate electromagnetic characteristics of charging cables.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16165947