锂电池和超级电容混合电动汽车的能量管理  

Research on Energy Management for Ultracapacitor/Lithium Battery Hybrid Electric Vehicles

作　　者：宋绍剑[1] 魏泽 刘延扬 林庆芳[1] 林小峰[1] SONG Shao-jian;WEI Ze;Liu Yan-yang;LIN Qing-fang;LIN Xiao-feng(School of Electrical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学电气工程学院

出　　处：《控制工程》2019年第12期2272-2277,共6页Control Engineering of China

基　　金：国家自然科学基金(61863003);广西自然科学基金(2016GXNSFAA380327)

摘　　要：锂电池+超级电容混合供电方案是解决纯电动汽车(Electric Vehicle, EV)动力性、经济性不足的有效方法,但混合电源纯电动车的能量分配策略与整车的能量效率及电池安全性等性能密切相关,为此以磷酸铁锂电池组(B)+超级电容器组(C)混合双电源电动汽车测试平台为研究对象,首先在ADVISOR中上搭建出测试平台的模型,然后提出一种基于模糊逻辑的能量分配策略,并与基于逻辑门限的能量分配策略在电池组的放电电流和功率、能量回收及能耗等方面进行了对比。仿真与测试结果比较表明,采用模糊逻辑能量分配策略的混合电源电动汽车在整车动力性、经济性和电池安全性等方面可以获得更好的性能。The scheme of ultracapacitor/lithium battery hybrid power supply for pure electric vehicle is an effective method to solve the problem of its dynamic performance and economy, but the energy dispatching strategy of the dual energy electric vehicle is close related to its performances, such as energy efficiency of the entire vehicle and the safety of the battery. Therefore, a hybrid electric vehicle testbed with LiFePO4 battery packs(B) and ultracapacitors(C) was studied in this paper. Firstly, the model of the testbed was developed in ADVISOR. Then, an energy dispatching strategy was proposed based on fuzzy logic, and compared with the strategy based on logic threshold in the discharge current, power of battery, energy recovery and energy consumption etc. The simulation and test results show that the hybrid electric vehicle with fuzzy logic energy dispatching strategies can get better performances in the vehicle’s dynamic performance, economy and battery’s safety so on.

关 键 词：电动汽车 能量分配 锂电池 超级电容 模糊逻辑 

分 类 号：U473.4[机械工程—车辆工程]