氢燃料电池汽车能量管理方法研究

Research on Energy Management Method of Hydrogen Fuel Cell Vehicle

随着石油资源的不断消耗,氢燃料电池汽车一直以来被视为终极环保汽车。为了改善系统的供电灵活性,延长燃料电池的使用寿命,目前氢燃料电池汽车大都采用以燃料电池为主,以储能电源为辅助动力源的混合发电系统。其中,整车能量管理控制策略作为其核心部分,如何进行主动力源与辅助动力源能量的分配是需要解决的重点问题之一。本文首先通过文献调查,针对4种基本控制策略进行原理分析,即峰值动力源策略、操作模式控制策略、模糊逻辑控制策略、等效氢耗最小策略。基于此,分析了氢燃料电池汽车整车能量管理策略的改进方法。通过节省氢燃料控制策略和节省生命周期控制策略达到延长氢燃料电池汽车系统部件寿命的目的,并基于自适应滤波的能量管理策略以实现各动力源之间能量的最优分配。

With the continuous consumption of petroleum resources,hydrogen fuel cell vehicle has always been regarded as the ultimate environmentally friendly vehicle.In order to improve the flexibility of the power supply system and prolong the life of the fuel cell,most of the hydrogen fuel cell vehicles adopt a hybrid power system,which is mainly composed of the fuel cell and other energy storage power source as the auxiliary power source.The energy management control strategy as its core part,how to distribute the energy of the main power source and the auxiliary power source is one of the key issues to be solved.The paper analyzes,via literature survey,the principles of four basic control strategies,namely,Peaking Power Source Strategy(PPSS),Operating Mode Control Strategy(OMCS),Fuzzy Logic Control Strategy(FLCS)and Equivalent Consumption Minimization Strategy(ECMS).Based on the above strategies,the improved method of energy management strategy for hydrogen fuel cell vehicles is analyzed.The goal of extending the life of system components of hydrogen fuel cell vehicle is achieved by the Hydrogen Fuel Saving Control Strategy(HFS-CS)and the Life Cycle Saving Control Strategy(LCS-CS).Furthermore,the adaptive filtering energy management strategy is introduced to achieve an optimal distribution of energy between the various power sources.