Accurate emulation of steady-state and dynamic performances of PEM fuel cells using simplified models

Hossam Ashraf; Mahmoud M Elkholy; Sameh O Abdellatif; Attia A El-Fergany

doi:10.1038/s41598-023-46847-w

Accurate emulation of steady-state and dynamic performances of PEM fuel cells using simplified models

Sci Rep. 2023 Nov 9;13(1):19532. doi: 10.1038/s41598-023-46847-w.

Authors

Hossam Ashraf¹, Mahmoud M Elkholy², Sameh O Abdellatif³, Attia A El-Fergany²

Affiliations

¹ Electrical Engineering Department, Faculty of Engineering and FabLab in the Centre for Emerging Learning Technologies (CELT), The British University in Egypt (BUE), Cairo, Egypt.
² Electrical Power and Machines Department, Faculty of Engineering, Zagazig University, Zagazig, 44519, Egypt.
³ Electrical Engineering Department, Faculty of Engineering and FabLab in the Centre for Emerging Learning Technologies (CELT), The British University in Egypt (BUE), Cairo, Egypt. Sameh.Osama@bue.edu.eg.

Abstract

The current effort addresses a novel attempt to extract the seven ungiven parameters of PEMFCs stack. The sum of squared deviations (SSDs) among the measured and the relevant model-based calculated datasets is adopted to define the cost function. A Kepler Optimization Algorithm (KOA) is employed to decide the best values of these parameters within viable ranges. Initially, the KOA-based methodology is applied to assess the steady-state performance for four practical study cases under several operating conditions. The results of the KOA are appraised against four newly challenging algorithms and the other recently reported optimizers in the literature under fair comparisons, to prove its superiority. Particularly, the minimum values of the SSDs for Ballard Mark, BCS 0.5 kW, NedStack PS6, and Temasek 1 kW PEMFCs stacks are 0.810578 V², 0.0116952 V², 2.10847 V², and 0.590467 V², respectively. Furthermore, the performance measures are evaluated on various metrics. Lastly, a simplified trial to upgrade Amphlett's model to include the PEMFCs' electrical dynamic response is introduced. The KOA appears to be viable and may be extended in real-time conditions according to the presented scenarios (steady-state and transient conditions).