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http://dx.doi.org/10.5391/JKIIS.2002.12.6.503

Neural Networks-based Statistical Approach for Fault Diagnosis in Nonlinear Systems  

Lee, In-Soo (상주대학교 전자전기공학부)
Cho, Won-Chul (경상북도 도립 경도대학 컴퓨터전자과)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.12, no.6, 2002 , pp. 503-510 More about this Journal
Abstract
This paper presents a fault diagnosis method using neural network-based multi-fault models and statistical method to detect and isolate faults in nonlinear systems. In the proposed method, faults are detected when the errors between the system output and the neural network nominal system output cross a predetermined threshold. Once a fault in the system is detected, the fault classifier statistically isolates the fault by using the error between each neural network-based fault model output and the system output. From the computer simulation results, it is verified that the proposed fault diagonal method can be performed successfully to detect and isolate faults in a nonlinear system.
Keywords
Fault detection; fault isolation; nonlinear system; neural network; multi-fault models statistical method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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