Expert diagnosis of polymer electrolyte fuel cells

Expert diagnosis of polymer electrolyte fuel cells
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聚合物电解质燃料电池专家诊断

DOI:
10.1016/j.ijhydene.2017.02.121
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发表时间:
2017
影响因子:
7.2
通讯作者:
Davies B
Davies B
中科院分区:
工程技术2区
文献类型:
--
作者:
Davies B

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诊断工程系统的故障状况是控制结构内非常期望的过程,使得控制系统可以有效地操作并且可以减轻降级的操作状态。本文的目标是增强生命周期性能并扩展系统可用性。在开发一个数学模型,可以描述所有的工作和故障模式的复杂系统的困难。然而,专家的知识的正确和错误的操作是强大的检测退化,这种知识可以通过模糊逻辑表示。本文提出了一种基于模糊逻辑和专家知识的诊断系统,从专家和实验结果。该诊断特别适用于聚合物电解质燃料电池中的劣化模式。为模糊逻辑模型产生的定义规则将观察到的操作模式和症状与部件退化相连接。然后针对常见的汽车应力条件对诊断进行测试,以评估功能。
Diagnosing faulty conditions of engineering systems is a highly desirable process within control structures, such that control systems may operate effectively and degrading operational states may be mitigated. The goal herein is to enhance lifetime performance and extend system availability. Difficulty arises in developing a mathematical model which can describe all working and failure modes of complex systems. However the expert's knowledge of correct and faulty operation is powerful for detecting degradation, and such knowledge can be represented through fuzzy logic. This paper presents a diagnostic system based on fuzzy logic and expert knowledge, attained from experts and experimental findings. The diagnosis is applied specifically to degradation modes in a polymer electrolyte fuel cell. The defined rules produced for the fuzzy logic model connect observed operational modes and symptoms to component degradation. The diagnosis is then tested against common automotive stress conditions to assess functionality.
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