摘要
为了解决氢燃料电池客车动力性不足,燃料消耗过高和氢燃料电池工作效率过低等问题。首先在AVL-Cruise和MATLABSimulink软件搭建氢燃料电池客车整车模型和能量管理控制策略。其次根据CCBC和CHTC-B行驶工况确定整车功率需求,匹配氢燃料电池复合电源并且满足整车动力性要求。然后提出一种高效率功率跟随能量管理策略,根据超级电容当前SOC、整车需求功率等条件来判断氢燃料电池开关状态和限制氢燃料电池输出功率以提高工作效率。将设计高效率功率跟随控制策略在CCBC和CHTC-B行驶工况下对整车经济性和动力性进行仿真。仿真结果表明:在高效率功率跟随能量管理控制策略条件下,氢燃料电池客车在CCBC和CHTC-B工况下氢气消耗量和高效工作区间占比分别为24.45 kg/100 km、54.86%和21.97 kg/100 km、55.46%,最终解决了氢燃料电池工作效率过低的问题。
In order to solve the problems of insufficient power,high fuel consumption and low efficiency of hydrogen fuel cell buses.Firstly,the vehicle model and energy management control strategy of hydrogen fuel cell bus were built in AVL-Cruise and MATLAB-Simulink software.Secondly,the power requirements of the vehicle were determined according to the driving conditions of CCBC and CHTC-B,and the hydrogen fuel cell composite power supply was matched to meet the vehicle power requirements.Then,a high-efficiency power following energy management strategy was proposed to judge the switching state of hydrogen fuel cell and limit the output power of hydrogen fuel cell to improve work efficiency according to the current SOC of super capacitor and the required power of vehicle.A high efficiency power following control strategy was design to simulate the vehicle economy and dynamic performance under CCBC and CHTC-B driving conditions.The simulation results show that under the control strategy of high efficiency power following energy management control strategy,the hydrogen consumption and the proportion of high-efficiency working range of hydrogen fuel cell buses under CCBC and CHTC-B conditions are 24.45 kg/100 km,54.86% and 21.97 kg/100 km,55.46%,respectively,which ultimately solves the problem of low efficiency of hydrogen fuel cell.
作者
周嫣
Zhou Yan(Wuxi Nanyang Vocational and Technical College,Wuxi,Jiangsu 214000,China)
出处
《机电工程技术》
2023年第5期117-121,共5页
Mechanical & Electrical Engineering Technology
关键词
氢燃料电池
复合电源
能量管理
高效率功率跟随
hydrogen fuel cell
composite power supply
energy management
high efficiency power following
