首页|面向控制的一维非等温两相流燃料电池模型研究

面向控制的一维非等温两相流燃料电池模型研究

Control-oriented one-dimensional model for non-isothermal two-phase transport in fuel cells

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经验模型不能反映电池内部复杂的物理化学耦合过程及其导致的响应迟滞,这给燃料电池系统精确控制策略的开发带来了一定困难.针对此问题,建立了面向控制的一维非等温两相流模型,考虑了流道内气体瞬态效应、电池内部水相变,研究了电流密度对气体浓度以及水热分布特性的影响,分析了运行条件和模型参数对电池输出电压的影响,探究了电流阶跃下该模型相比于集总参数模型在输出性能方面的优势.结果表明,该模型具有更好的适用性,可为燃料电池系统层面的模型优化及控制策略设计提供可靠依据.
The empirical model fails to capture the complex physical and chemical coupling processes occurring within the battery and the resulting response hysteresis, posing challenges for the development of precise control strategies for fuel cell systems. To address this issue, a control-oriented one-dimensional non-isothermal two-phase flow model was developed, with the transient effects of gas in the flow channel and the phase transition of water in the battery taken into account. The effects of current density on gas concentration and water-heat distribution characteristics were investigated. The impacts of operating conditions and model parameters on the output voltage of the battery were studied, and the advantages of the proposed model compared to the lumped parameter model in terms of output performance under current steps were analyzed. The results show that the model exhibits better applicability, providing a reliable foundation for model optimization and the design of control strategies at the fuel cell system level.

proton exchange membrane fuel cell (PEMFC)non-isothermaltwo-phase transportone-dimensional modelSimulink

刘佳奇、卢炽华、刘志恩、周辉

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武汉理工大学现代汽车零部件技术湖北省重点实验室,武汉 430070

先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室),广东佛山 528200

质子交换膜燃料电池 非等温 两相流 一维模型 Simulink

国家留学基金资助项目新能源汽车科学与关键技术学科创新引智基地资助项目先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室)开放基金

CSC201606955054B17034XHD2020-003

2024

10.11835/j.issn.1000-582X.2022.005

重庆大学学报
重庆大学

重庆大学学报

CSTPCD北大核心
影响因子：0.601
ISSN：1000-582X
年,卷(期)：2024.47(3)
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