On-line fault detection and isolation using unbalanced residuals

Document Type

Conference Proceeding

Publication Date

12-1-1999

Publication Title

Proceedings of the IEEE Conference on Decision and Control

Volume

5

First Page

4480

Last Page

4485

Abstract

This paper presents a FDI method based on standardized unbalanced residuals which are generated from the nodal imbalances of a process modeled using balance equations. The fault detection task is performed using a statistical test. The fault isolation decision maker proposed here is based on fault signatures and has the goal to reduce the rate of false alarms without increasing the rate of non-detections. The method is appropriate for on-line FDI because it is simple to implement, requires no special computations, no estimations of true values, and implies no iterations. The performance of the method was evaluated by computer simulation. The algorithm and an example are given at the end of the paper.

ISSN

01912216

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