Detecting faults in information poor systems using neurofuzzy models

N. Maruyama, A. Dexter
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引用次数: 0

Abstract

Considers the problem of detecting faults in information poor systems where an accurate mathematical model is difficult to produce, the data available for training a black-box model are incomplete, and measurements are sparse and of poor quality. The problem of detecting faults in the cooling coil of an air-conditioning system is used as an illustrative example. Results are presented which demonstrate the advantages of using a neurofuzzy model-based detection scheme with a variable threshold. The performance is compared to that of an ideal model-based fault detector and that of detectors with fixed thresholds. The sensitivity of the diagnosis to the type and magnitude of the fault is also examined. Experimental data collected from a full-scale air-conditioning system are used to design and test a fault detector.
基于神经模糊模型的信息贫乏系统故障检测
考虑在信息贫乏的系统中检测故障的问题,其中难以产生精确的数学模型,可用于训练黑盒模型的数据不完整,测量稀疏且质量差。以某空调系统冷却盘管的故障检测问题为例进行说明。结果表明,使用基于神经模糊模型的检测方案具有可变阈值的优点。将其性能与基于理想模型的故障检测器和固定阈值检测器的性能进行了比较。对故障类型和大小的诊断敏感性也进行了检验。本文利用某大型空调系统的实验数据,设计并测试了一种故障检测器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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