摘要
针对风冷型质子交换膜燃料电池与锂电池组成的小型车用混合动力系统,提出一种根据SOC(state of charge)动态调节功率跟随系数的能量管理方法,完成混合动力观光车样车研制.对构成样车的混合动力系统、氢气储存供给系统、信号控制系统3部分进行了详细阐述,并对不同工况下功率跟随算法调节系数对控制效果的影响进行了分析;采用动态改变调节系数降低功率跟随算法控制引起的锂电池SOC及燃料电池输出功率波动,延长电堆使用寿命;通过样车实际运行测试,验证混合动力控制方法的有效性.测试结果表明:运行过程中燃料电池平均工作效率达到48.15%,并推算理论最大续航里程为94 km,与实际运行结果吻合.
An SOC(state of charge)-based energy management method is proposed to dynamically adjust the power following coefficient for the small-vehicle hybrid system that consists of an air-cooled proton exchange membrane fuel cell and a lithium battery.Moreover,a hybrid sightseeing car prototype is developed.Three parts of the prototype vehicle are illustrated,i.e.,the hybrid power system,hydrogen storage supply system,and signal control system.How the coefficient of the power following algorithm affects the control under different operating conditions is analyzed.By dynamically adjusting the coefficient,the SOC deviation of the lithium battery and output power fluctuation of the fuel cell in the operation of the power following algorithm is alleviated and the service life of the stack is prolonged.Through the actual running tests on the prototype vehicle,the control method was verified.The average operating efficiency of the fuel cell in operation reached 48.15%,and the theoretical maximum cruising range was 94 km,which is consistent with the practice.
作者
陈维荣
李锦程
李奇
CHEN Weirong;LI Jincheng;LI Qi(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)
出处
《西南交通大学学报》
EI
CSCD
北大核心
2021年第1期197-205,共9页
Journal of Southwest Jiaotong University
基金
国家自然科学基金(51977181)
霍英东教育基金会高等院校青年教师基金(171104)
国家重点研发计划(2017YFB1201003-019)
四川省科技计划(19YYJC0698)。
关键词
质子交换膜燃料电池
混合动力系统
能量管理方法
车辆系统结构
Proton exchange membrane fuel cell
hybrid power system
energy management method
vehicle system structure
