PARAMETER IDENTIFICATION METHOD FOR PEMFC VOLTAGE MODEL BASED ON LLIMA

Zhao Lei; Wen Sufang; Liu Guangchen; Zhang Shaojie

doi:10.19912/j.0254-0096.tynxb.2024-0448

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (7) : 541-549. DOI: 10.19912/j.0254-0096.tynxb.2024-0448

Special Topics of Academic Papers at the 84th Annual Meeting of the China Association for Science and Technology

PARAMETER IDENTIFICATION METHOD FOR PEMFC VOLTAGE MODEL BASED ON LLIMA

Zhao Lei¹, Wen Sufang^1,2, Liu Guangchen^1,2, Zhang Shaojie¹

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Abstract

To address the issue that most heuristic algorithms are prone to converge prematurely when facing the voltage model parameter identification problem of proton exchange membrane fuel cell （PEMFC）, resulting in low parameter identification accuracy, this paper proposes an improved mayfly algorithm based on chaos mapping and adaptive Levy flight （LLIMA）. Firstly, the logistic equation is introduced to generate chaotic sequences, which are then mapped to the problem space to enhance the exploration capability of population initialization. Secondly, the adaptive Levy flight algorithm is added to the velocity update of the mayfly, which helps the algorithm escape from the local optimum by utilizing the property of Levy flight of large probability with small step size and small probability with large step size. Additionally, the inclusion of an adaptive strategy dynamically adjusts the mayfly velocities, further shortening the optimization time of the algorithm. Finally, the effectiveness of the algorithm is verified by the optimization results of four test functions in two different dimensions. Applying the LLIMA algorithm to parameter identification of the SR-12 fuel cell voltage model demonstrates that compared to the mayfly algorithm, improved mayfly algorithm, and particle swarm algorithm, the proposed LLIMA algorithm achieves higher identification accuracy, faster convergence speed, and stronger robustness for experimental data both with and without added white noise.

Key words

proton exchange membrane fuel cell （PEMFC） / heuristic algorithms / identification / Levy flight / chaotic map

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Zhao Lei, Wen Sufang, Liu Guangchen, Zhang Shaojie. PARAMETER IDENTIFICATION METHOD FOR PEMFC VOLTAGE MODEL BASED ON LLIMA[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 541-549 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0448

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