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Modeling and Analysis of PEMFC Power Generation Efficiency Based on Internal Resistance Characteristics
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Weiyi ZHOU1, Wanjun ZHENG2, Dong WEI2, Yudong XU1
Journal of Power Supply | 2026, 24(1) : 190 - 198
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Journal of Power Supply | 2026, 24(1): 190-198
• Renewable Energy Generation and Energy Storage •
Modeling and Analysis of PEMFC Power Generation Efficiency Based on Internal Resistance Characteristics
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Weiyi ZHOU1, Wanjun ZHENG2, Dong WEI2, Yudong XU1
Affiliations
  • 1.Yueqing Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Wenzhou 325600, China
  • 2.College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, China
Published: 2026-01-30 doi: 10.13234/j.issn.2095-2805.2026.1.190
Outline
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Based on the equivalent circuit model of proton exchange membrane fuel cell (PEMFC) and the electrochemical reaction theory, a fuel cell power generation efficiency calculation model is established to study the influences of operating conditions (e.g., working temperature and working humidity) on the internal resistance characteristics, output characteristics and power generation efficiency of the fuel cell stack. The principle of minimizing the total DC internal resistance inside the stack is adopted to obtain the optimum operating conditions under the output of different current densities. Experiments on AC impedance characteristics and U-I output characteristics are designed to verify the accuracy and effectiveness of the model. Simulation and experimental results indicate that the internal resistance characteristics and output current density are important factors affecting the variation in fuel cell power generation efficiency. The operating conditions corresponding to the minimum DC total internal resistance inside the stack can optimize the output performance of the stack and improve the power generation efficiency. The fuel cell power generation efficiency model established can accurately reflect the internal characteristics of the fuel cell stack, and the calculation results are effective and reliable.

Proton exchange membrane fuel cell (PEMFC)  /  power generation efficiency  /  operation condition  /  internal resistance characteristic  /  current density
周唯逸, 郑万俊, 卫东, 徐钰栋. 基于内阻特性的PEMFC发电效率建模与分析. 电源学报, 2026 , 24 (1) : 190 -198 . DOI: 10.13234/j.issn.2095-2805.2026.1.190
Weiyi ZHOU, Wanjun ZHENG, Dong WEI, Yudong XU. Modeling and Analysis of PEMFC Power Generation Efficiency Based on Internal Resistance Characteristics[J]. Journal of Power Supply, 2026 , 24 (1) : 190 -198 . DOI: 10.13234/j.issn.2095-2805.2026.1.190
Funding
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  • Zhejiang Provincial Basic Public Welfare Research Program(LGG22E070003)
Appendix
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Year 2026 volume 24 Issue 1
49
7
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.1.190
  • Receive Date：2024-09-23
  • Online Date：2026-10-26
  • Published：2026-01-30
Article Data
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History
  • Received：2024-09-23
  • Revised：2025-01-18
  • Accepted：2025-02-03
Funding
Zhejiang Provincial Basic Public Welfare Research Program(LGG22E070003)
Affiliations
    1.Yueqing Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Wenzhou 325600, China
    2.College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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