面向控制的一维非等温两相流燃料电池模型研究
作者:
作者单位:

1.武汉理工大学 现代汽车零部件技术湖北省重点实验室,湖北武汉 430070;2.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

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基金项目:

国家留学基金资助项目(201606955054);新能源汽车科学与关键技术学科创新引智基地资助项目(B17034);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)开放基金资助项目(XHD2020-003)。


Control-Oriented One-Dimensional Model Investigation for Non-Isothermal Two-Phase Transport in Fuel cell
Author:
Affiliation:

1.Wuhan University of Technology, Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070,China;2.Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528200, China

Fund Project:

Supported by Chinese Scholarship Council(CSC201606955054);the 111 Project(B17034) and the Open Fundation of Guangdong Provincial Laboratory of advanced energy science and Technology (Foshan Xianhu laboratory) (xhd2020-003) .

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    摘要:

    经验模型不能反映电池内部复杂物理化学耦合过程及其导致的响应迟滞,这给燃料电池系统的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、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。

    Abstract:

    The empirical model cannot reflect the complex physical and chemical coupling process inside the battery and the resulting response hysteresis, which brings certain difficulties to the development of precise control strategies for fuel cell systems. Aiming at this problem, a control-oriented one-dimensional non-isothermal two-phase flow model was established. The transient effect of gas in the flow channel and the phase transition of water in the battery were considered, and the influence of current density on gas concentration and water-heat distribution characteristics was studied. The influence of operating conditions and model parameters on the output voltage of the battery was investigated, and the advantages of the model compared with the lumped parameter model in terms of output performance under the current step were explored. The results show that the model has better applicability and can provide a reliable basis for model optimization and control strategy design at the fuel cell system level.

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  • 收稿日期:2022-01-10
  • 最后修改日期:2022-02-19
  • 录用日期:2022-03-03
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