使用机器学习对聚合物电解质燃料电池的通用故障诊断
Greg D'Silva1, Eashaal Mahmood1, Rhodri Jervis1
1Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, WC1E 7JE London, UK.
iScience
|September 22, 2025
概括
这项研究引入了用于聚合物电解质燃料电池 (PEFCs) 的新诊断方法,使用多频信号来检测水管理和饥饿等故障. 1D-CNN模型被证明是最有效的准确和可扩展的PEFC诊断.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 能源系统 能源系统
背景情况:
- 聚合物电解质燃料电池 (PEFC) 对移动和固定发电都有很大的潜力.
- 然而,由于运行寿命有限,容易发生故障,特别是水资源管理和饥饿问题,阻碍了它们的广泛商业应用.
- 有效的诊断工具对于提高PEFC可靠性和寿命至关重要.
研究的目的:
- 开发和评估一个黑子诊断方法,用于识别PEFC中的水资源管理和饥饿缺陷.
- 评估不同机器学习模型 (DNN,1D-CNN,SVM) 在分类PEFC操作状态中的性能.
- 调查数据集多样性对模型通用化的影响,以进行可靠的故障检测.
主要方法:
- 实施使用多频沃尔什功能的扰动信号的黑盒诊断方法.
- 分析电压响应数据以检测指示特定故障的异常.
- 对深度神经网络 (DNN),1D卷积神经网络 (1D-CNN) 和支持矢量机器 (SVM) 的比较评估,用于故障分类.
- 在单个和多个PEFC数据集上测试模型性能,以评估概括能力.
主要成果:
- 所有测试的模型 (DNNs,1D-CNNs,SVM) 在单个PEFC中对正常,干燥和饥饿条件进行分类时都表现出很高的准确性,1D-CNN和SVM实现了100%的准确性.
- 对于未见的PEFCs的初始模型概括在从单个细胞的数据上训练时是有限的.
- 结合来自多个PEFC的数据显著提高了模型性能和概括性.
- 1D-CNN模型表现出卓越的概括能力,即使从未见过的来源获得有限的训练数据.
结论:
- 多频沃什功能的扰动信号为诊断PEFC故障提供了一种有效的,非侵入性的方法.
- 1D-CNN模型在各种操作条件和硬件变异中展示了强大的和可扩展的PEFC诊断的最大潜力.
- 数据集的多样性对于开发可靠的诊断模型至关重要,这些模型可以在不同的PEFC单元中进行概括.
更多相关视频
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
2.1K
12:12On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
Published on: March 16, 2018
22.8K
相关概念视频
Batteries and Fuel Cells
30.7K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
30.7K
Gas Chromatography: Types of Detectors-II
1.1K
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
1.1K
