Research on temperature control performance of battery thermal management system composited with multi-channel parallel liquid cooling and air cooling

被引:22
作者
Li, Meng [1 ]
Liu, Fei [1 ]
Han, Bing [1 ]
Guo, Jiale [1 ]
Xu, Yalong [1 ]
机构
[1] Shanghai Univ Engn Sci, Sch Mech & Automot Engn, 333 Long Teng Rd, Shanghai 201620, Peoples R China
关键词
Thermal management system; Multi-channel liquid cooling; Air cooling; Performance optimization; PHASE-CHANGE MATERIALS; PREDICTION; MODULE;
D O I
10.1007/s11581-021-04033-w
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Power battery is the core parts of electric vehicle, which directly affects the safety and usability of electric vehicle. Aiming at the problems of heat dissipation and temperature uniformity of battery module, a battery thermal management system composited with multi-channel parallel liquid cooling and air cooling is proposed. Firstly, the simulation model of composite system is established from the system level, and the corresponding thermal performance is analyzed under different ambient temperature and charge/discharge rate. Then, the thermal management system is optimized from the aspect of coolant flow direction and control strategy. The results show that changing the coolant flow direction can reduce the temperature difference of the battery module to within 3 degrees C, but it is not conducive to controlling the maximum temperature of the battery. With the intelligent PID control strategy, the temperature of the battery fluctuates smoothly and stays between 41 and 42 degrees C, and the temperature of the battery module is more evenly distributed with the temperature difference within 2 degrees C.
引用
收藏
页码:2685 / 2695
页数:11
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