CAJ | 학술논문

针对燃料电池电压电流输出特性及动态响应滞后的特点,提出燃料电池加辅助电源的中巴车电电混合动力系统方案.采用燃料电池加镍氢电池加超级电容的三能源结构作为整车的驱动电源,设计了整个动力系统的基本结构.通过分析动力系统的驱动模式,引入智能协调和预测控制思想,设计了燃料电池中巴车混合动力协调控制系统.采用三层前馈神经网络建立系统的非线性预测模型,对燃料电池发动机功率预测控制系统进行了研究和优化,给出了具体的预测控制算法步骤.仿真实验结果表明该控制策略具有良好的控制效果,减少了燃料电池发动机输出功率的频繁波动,整车动力性及经济性都得到了加强.
침대연료전지전압전류수출특성급동태향응체후적특점,제출연료전지가보조전원적중파차전전혼합동력계통방안.채용연료전지가얼경전지가초급전용적삼능원결구작위정차적구동전원,설계료정개동력계통적기본결구.통과분석동력계통적구동모식,인입지능협조화예측공제사상,설계료연료전지중파차혼합동력협조공제계통.채용삼층전궤신경망락건립계통적비선성예측모형,대연료전지발동궤공솔예측공제계통진행료연구화우화,급출료구체적예측공제산법보취.방진실험결과표명해공제책략구유량호적공제효과,감소료연료전지발동궤수출공솔적빈번파동,정차동력성급경제성도득도료가강.
In view of the characteristic of V/I output and dynamic response lag of fuel cell,hybrid power system project of middle size bus included Fuel cell and auxiliary electrical sources is brought forward.The system adopts three energy sources as power sources,which is composed of fuel cell,NIH battery and supercapacitor,and the whole system structure is designed.Based on the analysis of drive mode about power system,the hybrid power coordinated control system of fuel cell middle size bus is built by applying intelligent coordinated and predictive contr01.Non-linear predictive model of system is established by applying three forward feed neural network,and besides,power predictive control system of fuel cell engine is designed and optimized,finally,the concrete predictive control algorithm step is given.The simulation results are presented,which show the effectiveness of the control strategy,for it Can reduce frequent fluctuation of fuel cell engine output power and improve dynamic performance and fuel economyof the vehicle.