The invention belongs to the field of fuel cell systems, and particularly relates to a hybrid power system energy management method considering platinum degradation, which comprises the following steps of: constructing an energy management optimization model by taking SOC of a lithium battery as a state variable of the system, taking output power of a fuel cell as a control variable of the system and taking minimum fuel consumption and service life attenuation as optimization targets; the optimization problem is solved by adopting a minimum value principle, a loss function comprises hydrogen consumption and platinum degradation, the platinum degradation is decomposed into degradation caused by working voltage change and degradation caused by high potential, and the degradation caused by the working voltage change is estimated by using the variable quantity of the current voltage and the voltage at the previous moment; the latter carries out estimation in an index form; the weight coefficient of each part is adjusted according to the actual management tendency, so that the energy management method has certain tendency, and the method is improved to comprehensively consider two targets of minimum fuel and minimum service life attenuation of the fuel cell on the basis that only fuel optimization is considered in a traditional strategy, so that the performance degradation of a power source is delayed.

    本发明属于燃料电池系统领域,具体涉及一种考虑铂退化的混合动力系统能量管理方法,其以锂电池的SOC为系统的状态变量,以燃料电池的输出功率为系统的控制变量,以燃料消耗和寿命衰减最小为优化目标,构建能量管理优化模型,采用极小值原理求解该优化问题,损失函数包括氢气消耗和铂退化两部分,铂退化又分解为工作电压变化引起的退化和高电势引起的退化,前者退化使用当前电压与前一时刻电压的变化量进行估算;后者采用指数的形式进行估算;根据实际管理倾向调整各部分的权重系数,使得能量管理方法具有一定的倾向性,本发明在传统策略仅考虑燃料最优的基础上改进为综合考虑燃料最少和燃料电池寿命衰减最小两个目标,延缓动力源的性能退化。


    Access

    Download


    Export, share and cite



    Title :

    Hybrid power system energy management method considering platinum degradation


    Additional title:

    一种考虑铂退化的混合动力系统能量管理方法


    Contributors:
    LI XI (author) / SHENG CHUANG (author) / GUO ZI'ANG (author) / LI BEIJIA (author) / SHAN XINKAI (author) / DENG ZHONGHUA (author)

    Publication date :

    2023-09-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Ship hybrid power energy management method and system considering battery aging

    ZHANG XINGMING / YE HUA / GUO XI et al. | European Patent Office | 2024

    Free access

    Hybrid electric vehicle energy management method considering thermal characteristics

    SONG DAFENG / WANG SHIYUAN / LI ZHANJIANG et al. | European Patent Office | 2021

    Free access



    Hybrid electric vehicle prediction energy management method considering SOC track

    ZENG XIAOHUA / WANG YUNYE / SONG DAFENG et al. | European Patent Office | 2023

    Free access