4.7 Article

Hierarchical thermal management for PEM fuel cell with machine learning approach

Journal

APPLIED THERMAL ENGINEERING
Volume 236, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2023.121544

Keywords

Thermal management; Water-cooled system control; Deep deterministic policy gradient; Optimal temperature tracking

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This paper proposes a hierarchical thermal management strategy for proton exchange membrane fuel cell (PEMFC) based on an energy management strategy and a hydrogen consumption minimization strategy. The strategies are combined using deep reinforcement learning algorithm to deal with the complex cooling system.
Thermal management is crucial for the mass transport and water balance of proton exchange membrane fuel cell (PEMFC). Inspired by this, a hierarchical thermal management strategy (TMS) is proposed for fuel cell hybrid electric vehicle (FCHEV). In particular, the transient TMS demands are determined by a well-designed energy management strategy (EMS) taking health and thermal safety into consideration. Furthermore, along with the high-efficiency heat dissipation, a hydrogen consumption minimization strategy (HCMS) is proposed via optimal temperature tracking, which investigates the desirable trace offline. These parallel strategies are incorporated through the deep reinforcement learning (DRL)-based deep deterministic policy gradient (DDPG) algorithm. With the help of its self-adaptive ability, DDPG deals with the complicated TRS problem in multidimensional coupled cooling system, through a mutually updated actor-critic framework. Results suggest the superiority and reliability of proposed TMS with respect to the stack efficiency, fuel economy and tracking performance.

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