面向PEMFC系统的多输入单输出ELM-Hammerstein建模与参数辨识

doi:doi:10.19912/j.0254-0096.tynxb.2024-1924

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面向PEMFC系统的多输入单输出ELM-Hammerstein建模与参数辨识

更新时间：2025-10-22

- 面向PEMFC系统的多输入单输出ELM-Hammerstein建模与参数辨识
- Vol. 46, Issue 9, Pages: 426-436(2025)
- 作者机构：
- 作者简介：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1924
  CLC： TM911
- Published Online：14 October 2025，
  
  Published：2025
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[J]. 2025, 46(9): 426-436.
DOI：

[J]. 2025, 46(9): 426-436. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1924.

摘要

针对质子交换膜燃料电池（PEMFC）系统建模过程中存在的动态响应复杂、非线性关系难以准确表征等问题

提出一种基于多输入单输出Hammerstein结构的PEMFC整体系统建模与参数辨识新方法。首先

利用极限学习机（ELM）网络描述Hammerstein模型的输入非线性环节

构造能准确反映PEMFC系统动静态特性的模型框架。其次

利用关键项分离技术构造辨识模型

结合辅助模型思想推导辅助模型递推最小二乘（AM-RLS）算法和辅助模型遗忘梯度（AM-FG）算法对模型进行参数辨识。最后

将弹性网络（ElasticNet）与互信息分析（MIA）结合筛选与输出电能质量具有强关联性的可控变量

降低建模复杂度的同时提升计算效率。通过动态和稳态电流工况下的实测数据进行仿真验证

结果表明所建模型能够精准预测PEMFC的输出电压变化趋势

准确反映输出电能的质量波动情况。

Abstract

In response to the challenges associated with complex dynamic responses and inaccurate description of nonlinear relationships in proton exchange membrane fuel cell （PEMFC） modeling

this paper proposes a novel method for PEMFC modeling and parameter identification based on a multi-input single-output Hammerstein structure. Initially

an extreme learning machine （ELM） network is employed to capture the input nonlinearity within the Hammerstein model

thereby constructing a framework that precisely reflects both the dynamic and static characteristics of the PEMFC system. Subsequently

the key term separation technique is utilized to construct the identification model

from which the auxiliary model recursive least squares （AM-RLS） algorithm and the auxiliary model forgetting gradient （AM-FG） algorithm are derived for parameter identification by integrating the auxiliary model idea. Finally

by combining ElasticNet with mutual information analysis （MIA）

controllable variables strongly correlated with the output power quality are screened

thereby reducing modeling complexity and improving computational efficiency. Through simulation verification using the measured data under dynamic and steady current conditions

the results indicate that the established model can accurately predict the variation trend of output voltage and exactly reflect the quality fluctuation of output power.

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references

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