电动汽车ChaoJi充电连接器温升仿真方法
Temperature Rise Simulation Method for ChaoJi Charging Connector of Electric Vehicles
李奕杰 1吕晓荣 1吴丹 2雷珽 2张开宇2
作者信息
- 1. 国电南瑞科技股份有限公司,江苏南京 211106
- 2. 国网上海市电力公司,上海 201700
- 折叠
摘要
高功率充电桩在工作过程中,长时间大电流充电使其连接器温升明显.针对此电动汽车大功率充电的发展需求,对ChaoJi充电连接器的温升仿真建模及软件仿真开展研究.首先,简化连接器的结构为圆筒状,结合接触件的结构类型以及接触电阻的影响因素,研究连接器接触点的热效应模型;其次,研究ChaoJi充电连接器的温升仿真方法;最后,对ChaoJi连接器进行软件热仿真,由此验证ChaoJi充电接口温升模型,得出温升值与通电电流约为二次方关系的结论.所研究的ChaoJi充电连接器温升模型及软件热仿真在一定程度上弥补了充电接口温升研究的空白.
Abstract
During the operation of high-power charging piles,prolonged high current charging causes significant temperature rise in the connectors.This paper focuses on the development needs of high-power charging for electric vehicles and conducts research on the temperature rise simulation modeling and software simulation of ChaoJi charging connectors.Firstly,it simplifies the structure of the connector to be cylindrical,and studies the thermal effect model of the connector contact point based on the type of contact structure and the influencing factors of contact resistance.Secondly,it studies the temperature rise simulation method of ChaoJi charging connector.Finally,the paper carries out software thermal simulation on the ChaoJi connector and verifies the temperature rise model of the ChaoJi charging interface.It draws a conclusion that the temperature rise is related to the square of the energized current.The ChaoJi charging connector temperature rise model and software thermal simulation studied in this paper fill the gap in the research of charging interface temperature rise,and have important research significance to a certain extent.
关键词
电动汽车/ChaoJi充电接口/温升/热效应/连接器Key words
electric vehicle/ChaoJi charging interface/temperature rise/thermal effect/connector引用本文复制引用
基金项目
国家电网科技项目(5400-202240429A-2-0-ZN)
出版年
2024
国家科技期刊平台
NSTL
万方数据