Optimal selection range of FCV power battery capacity considering the synergistic decay of dual power source lifespan

Dagang Lu, Donghai Hu, Fengyan Yi, Jianwei Li, Qingqing Yang

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

To explore a new method for the selection of power battery capacity range considering the synergistic decay of dual power source lifespan under the operating lifespan cycle of fuel cell vehicle (FCV). Based on the dual power source decay model and the proposed power-following energy management strategy (EMS) based on low-pass filtering, this paper analyses the influence of control parameters (proton exchange membrane fuel cell (PEMFC) response speed, filter order) and design parameters (fuel cell rated power, power battery capacity) on the dual power source. The governing law is the power source decay rate, and based on this law, the synergy point of dual power source decay under variable control parameters and different power battery capacities is fitted, and the power battery capacity allowing dual power sources to synergistically decay under variable control parameters is summarized. The results show that under this strategy, when the capacity range of the power battery is 20–143 Ah, changing the control parameters in real time can make the dual power sources synergistically attenuate. Based on this capacity range, the PEMFC response speed and filter order corresponding to the dual power source decay synergy point obtained under the power battery capacity matching selection method can enable the dual power source synergistic decay to be verified by hardware-in-the-loop (HIL) simulation. The results show that at the end of the simulation, the dual power source decay rates can be synergistic.
Original languageEnglish
Pages (from-to)13578-13590
Number of pages13
JournalInternational Journal of Hydrogen Energy
Volume48
Issue number36
Early online date9 Jan 2023
DOIs
Publication statusPublished - 29 Apr 2023

Bibliographical note

Funding Information:
This research is Supported by Foundation of State Key Laboratory of Automotive Simulation and Control (Grant No. 20191103 ).

Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC

Keywords

  • Fuel cell vehicle (FCV)
  • Dual power source
  • Synergistic decay
  • Power battery capacity

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