基于全局优化策略的某燃料电池车动力经济性验证  

Energy management strategy for fuel cell commercial vehicle based on dynamic programming

作　　者：辛伟伟 韦尚军 郑伟光[1,2] 张平 XIN Weiwei;WEI Shangjun;ZHENG Weiguang;ZHANG Ping(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,China;Commercial Vehicle Technology Center,Dongfeng Liuzhou Automobile Co.,Ltd,Liuzhou 545005,China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004 [2]东风柳州汽车有限公司商用车技术中心,广西柳州541005

出　　处：《桂林电子科技大学学报》2022年第6期508-513,共6页Journal of Guilin University of Electronic Technology

基　　金：广西创新驱动项目(桂科AA18242033);柳州科技计划项目(2020GAAA0403,2019AD10203)。

摘　　要：为验证某款燃料电池商用车动力系统选型的合理性,以该款车型动力系统的关键参数为基础,在MATLAB仿真平台上搭建包含复合能量源(包含燃料电池和蓄电池包)、电机系统(包含驱动电机和电机控制器)及车辆传动系统(包含主减速器和车轮)的模型。采用基于动态规划算法的全局优化能量管理策略,设定空载、半载和满载3种载重模式,以欧洲典型行驶工况EUDC_LOW为仿真工况,分析车辆在不同载重模式下的动力经济性。仿真结果显示,在3种载重模式下,车辆配置的复合能量源均能满足车辆在指定行驶工况下的功率要求,但随着车辆载重的增大,蓄电池包终端SOC逐渐偏离初始值,考虑到商用车需要在大载重的模式下工作较长时间,较低的SOC不利于车辆保持最佳的动力性。针对该车型的验证结果表明,在后续的研究和实车验证中,应考虑配置功率更大的车载燃料电池。To test the rationality of the power system for a fuel cell commercial vehicle,the models of energy source(including fuel cell stack and battery pack),electric motor system(including electric motor and its controller)and driveline are built in Matlab.A global optimization energy management strategy based on dynamic programing is adopt to analysis the vehicle′s fuel economy with the European typical drive cycle under three load modes(including no-load,half-load and full-load).Simulation results show that the energy source employed satisfy the vehicle′s power requirements at the selected drive cycle,while with the increase of on-board load,the terminal SOC of battery gradually deviates from the initial value,which will limit the commercial vehicle′s dynamic performance in the long term cycles with a large on-board load.Verification results for the vehicle point that great power on-board fuel cell stack should be considered in the following research and vehicle verification.

关 键 词：燃料电池汽车 商用车 能量管理策略 动态规划 载重模式 

分 类 号：U462[机械工程—车辆工程]