Development and Simulation of Real-Time Early Warning Protection System for Electric Vehicle Charging Based on a Two-Layer Protection Model

With the increase of fire problems of new energy vehicles (EVs), more and more attention has been paid to charging safety. Firstly, the charging safety problems and protection strategies in the power grid are summarized from the grid side, the charging equipment side, the vehicle side, and the opera...

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Bibliographic Details
Published inWorld electric vehicle journal Vol. 13; no. 5; p. 73
Main Authors Jiang, Linru, Li, Taoyong, Li, Bowen, Diao, Xiaohong, Zhang, Jing
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2022
Subjects
Access control
Battery chargers
Big Data
charging protection technology
charging safety
Communication
Computer architecture
Control algorithms
Data analysis
early warning system
Early warning systems
Electric power
Electric power grids
Electric utilities
Electric vehicle charging
Electric vehicles
electric vehicles (EVs)
Failure
Fault diagnosis
Infrastructure
Manufacturers
Physical simulation
protection model
Protection systems
Real time
Safety
Simulation
Statistical analysis
China
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Summary:With the increase of fire problems of new energy vehicles (EVs), more and more attention has been paid to charging safety. Firstly, the charging safety problems and protection strategies in the power grid are summarized from the grid side, the charging equipment side, the vehicle side, and the operation platform side, and a solution for the vehicle side charging safety protection is proposed. Secondly, with regards to building a charging early warning protection system architecture, a real-time protection strategy for EV charging is proposed; a battery temperature difference, battery voltage ramp rate, and current ramp rate are proposed; and a double-layer protection model of an active protection layer and a big data protection layer is established based on the real-time monitoring of 27 parameters. Finally, by building a physical simulation platform of the early warning system, the simulation and verification are carried out based on the BYD Han model. The system was demonstrated in the State Grid Tianjin Electric Power Company of China. The results show that the system can realize the charging real-time early warning and deal with it in time when the battery charging is abnormal, which has practical application value for the popularization and development of EVs.
ISSN:2032-6653
2032-6653
DOI:10.3390/wevj13050073