A composite fuzzy energy management strategy was proposed with the goal of improving the lifespan of auxiliary energy source power batteries. The improved pigeon swarm optimization algorithm (IPIO) was used to update the fuzzy membership function, while ensuring that the power battery operates in a suitable range for a long time and reducing equivalent hydrogen consumption. The existing ADVISOR model was developed to establish a simulation model for the FCEV hybrid power system, and was conducted simulation experiments under two operating conditions: NEDC and CLTC-P. The results show that the charging speed of the IPIO-enhanced energy management strategy is more than twice as fast as the power-following strategy when the initial State of Charge (SoC) is low, enabling a faster transition to the optimal SoC range and prolonging battery lifespan. When the initial SoC is high, the equivalent hydrogen consumption of the IPIO-enhanced composite fuzzy energy management strategy is reduced by 11.8% and 9.09% compared with before under two driving cycles, significantly reducing hydrogen consumption and enhancing the economy of hydrogen fuel cell vehicles.
循环工况选择NEDC(New european driving cycle,新标欧洲驾驶周期)和CLTC-P(China light-duty vehicle test cycle-passenger,中国轻型乘用车测试工况)作为仿真测试工况,设置动力电池初始SoC在较低(0.4)和适宜区间(0.7)的两种状态下进行仿真,基于功率跟随策略、复合模糊能量管理策略和本文提出的模糊能量管理策略分别进行仿真。在得到最终的仿真结果后,对比分析不同初始SoC状态下3种不同EMS的功率分配变化、SoC变化和等效氢耗量。
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