Study on the influence of operation parameters on the performance of proton exchange membrane fuel cell system

doi:10.3969/j.issn.1674-8484.2021.02.014

Abstract

Abstract:

A Mark V proton exchange membrane fuel cell (PEMFC) analysis model was established to find out the influence of operating parameters on the output performance of PEMFC based on Simulink platform and Thermolib toolkit. The key operating parameters’ influence on the single cell voltage were studied, such as the stack temperature, air humidity, hydrogen pressure, air temperature, hydrogen pressure, air pressure, air excess coefficient and so on. The results show that the stack performance can be improved by increasing H₂ pressure, air pressure and air humidity; the influence of stack temperature, air temperature and excess air coefficient on the performance of fuel cell is limited. When the fuel cell reaches the optimal state, increasing the parameters will not improve the performance of fuel cell. These analysis results are helpful to understand the influence of key operating parameters on the performance of fuel cell, and have certain guiding significance for the development of fuel cell control strategy.

Key words: proton exchange membrane fuel cell(PEMFC), operating parameters, performance analysis, simulation analysis

CLC Number:

TM911.42

JI Shaobo, MA Rongze, ZHAO Tongjun, LI Yang, HUANG Hai, ZHANG Shiqiang, CHENG Yong. Study on the influence of operation parameters on the performance of proton exchange membrane fuel cell system[J]. Journal of Automotive Safety and Energy, 2021, 12(2): 251-256.

Figures/Tables 8

References 12

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	开路状态		I_out = 20 A
	U_out / V	θ / ℃	U_out / V	θ / ℃
试验数据	39.2	25.0	30.3	39.6
计算数据	38.0	25.0	29.0	40.0
最大误差	3%	0%	4%	1%

	开路状态		I_out = 20 A
	U_out / V	θ / ℃	U_out / V	θ / ℃
试验数据	39.2	25.0	30.3	39.6
计算数据	38.0	25.0	29.0	40.0
最大误差	3%	0%	4%	1%