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Modeling and optimal control of fast filling process of hydrogen to fuel cell vehicle

Abstract : Due to the rapid compression of hydrogen and the Joule-Thompson effect specific to hydrogen during the fast filling process, the internal temperature of the cylinder rises sharply which may lead to hidden safety hazards. In this study, a high-pressure hydrogen filling process is considered, and a simple mathematical model of a cascade storage system of a hydrogen refilling station is developed to analyze the temperature rise in hydrogen cylinders under different working conditions. The results show the pressure switching coefficient has a great impact on the filling time, and the pre-cooling of hydrogen has a significant impact on the temperature rise and the states of charge (SOC) within cylinder. Herein, a multi-objective iterative optimization algorithm is proposed to calculate the above two controllable variables (pressure switching coefficient, pre-cooling temperature of hydrogen) with the objectives of faster refueling, lower energy consumption and higher SOC within cylinders in cascade hydrogen refueling. Besides, this method could significantly decrease energy consumption, improve SOC and allow acceptable refueling time.
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Submitted on : Monday, January 25, 2021 - 4:14:49 PM
Last modification on : Tuesday, July 13, 2021 - 8:20:04 AM
Long-term archiving on: : Monday, April 26, 2021 - 7:19:08 PM

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Yunfeng Bai, Caizhi Zhang, Hao Duan, Shangfeng Jiang, Zhiming Zhou, et al.. Modeling and optimal control of fast filling process of hydrogen to fuel cell vehicle. Journal of Energy Storage, Elsevier, 2021, 35, pp.1-10/102306. ⟨10.1016/j.est.2021.102306⟩. ⟨hal-03120106⟩

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