耐久性
汽车工程
电池(电)
燃料效率
功率(物理)
质子交换膜燃料电池
氢燃料
能源管理
计算机科学
工程类
燃料电池
能量(信号处理)
数学
物理
统计
数据库
量子力学
化学工程
作者
Ke Song,Xiaodi Wang,Feiqiang Li,Marco Sorrentino,Bailin Zheng
出处
期刊:Energy
[Elsevier]
日期:2020-08-01
卷期号:205: 118064-118064
被引量:143
标识
DOI:10.1016/j.energy.2020.118064
摘要
This paper presents a real-time and approximately optimal energy management strategy (EMS) based on Pontryagin’s minimum principle (PMP), considering both fuel economy and power source durability. To develop the target strategy, performance degradation models are built for two power sources: a proton exchange membrane fuel cell and a lithium ion battery. This study provides an online co-state updating method for uncertain driving cycles. The method allows the battery’s state of charge to be controlled within a certain range and determines the nearly optimal hydrogen consumption. Furthermore, by incorporating a fuel cell power variation limiting factor with a weight coefficient into the PMP to suppress power changes, the durability of the fuel cell can be improved. The average daily operating cost (calculated based on the fuel consumption and power source degradation) is used to evaluate the trade-off between fuel economy and power source durability. Simulation results show that the fuel cell durability is improved with a slight increase in fuel consumption and battery degradation, and that the average daily operating cost is effectively reduced. A comparison with the results obtained by adopting a rule-based EMS and a dynamic programming-based EMS indicate the superiority of the proposed EMS.
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