考虑电池热管理的复合电源电动汽车功率分配控制策略  

Research on Improvement of Battery Thermal Management Performance Using Composite Power Supply for Electric Vehicles

作　　者：朱波[1,2] 张何 姚明尧 邓谊柏 ZHU Bo;ZHANG He;YAO Mingyao;DENG Yibo(Hefei University of Technology,Hefei 230009,China;Intelligent Manufacturing Institute of HUFT,Hefei 230009,China;Ningbo CRRC New Energy Technology Co.,Ltd.,Ningbo 315112,Zhejiang,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]合肥工业大学,合肥230009 [2]合肥工业大学智能制造技术研究院,合肥230009 [3]宁波中车新能源科技有限公司,浙江宁波315112 [4]浙江大学电气工程学院,杭州310027

出　　处：《汽车工程学报》2022年第2期147-153,共7页Chinese Journal of Automotive Engineering

基　　金：安徽省重点研究与开发计划(202004b11020002):增程式电动汽车集成热管理系统研发和应用。

摘　　要：为提升高温环境下电源系统的综合效率,通过分析电动汽车热管理和能耗模型,提出一种考虑电池热管理的复合电源电动汽车功率分配控制策略,并在CATC、NEDC工况下分别与单一电源电动汽车和采用常规策略的复合电源电动汽车进行对比仿真。结果表明,相对于单一电源,采用复合电源方案的电动汽车电源系统能量回馈提升3.6%以上,综合能耗降低3.3%以上,电池最终温度下降3.51℃以上;相对于采用常规策略的复合电源电动汽车,考虑电池热管理的复合电源功率分配控制策略提升超级电容参与度,使复合电源系统能量回馈提升1.8%左右,综合能耗降低1.2%左右,电池最终温度降低1.25℃左右,从而验证了该策略的有效性。To improve comprehensive efficiency of the power system in high-temperature environments, a power distribution strategy for hybrid electric vehicles was proposed considering battery thermal management. The thermal management in an electric vehicle and the EV energy consumption model were analyzed.The simulation was conducted, taking into consideration the single power supply, the composite power supply and the power distribution strategy under CATC and NEDC conditions. The results show that compared with the single power supply, the energy recovery of the composite power supply is increased by more than3.6%, the energy consumption is reduced by more than 3.3% and the final battery temperature is decreased by more than 3.51℃. Compared with the conventional strategy, the power distribution strategy considering the battery thermal management increases the energy recovery of the power system by about 1.8% by improving the ultra-capacitor performance, reduces the energy consumption by about 1.2% and reduces the final temperature of the battery by about 1.25℃. The proposed strategy has been proved an effective way to improve the battery thermal management performance in high temperature environments and to enhance the efficiency of composite power supply.

关 键 词：电动汽车 超级电容 电池热管理 逻辑门限控制 

分 类 号：U469.72[机械工程—车辆工程]