Title :
Optimal sensor location in closed-loop control systems for fault detection and isolation
Author :
Xu, Yonghui ; Jiang, Jin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
A problem as to where to pick-up the best signal to generate the residual for the purpose of fault detection and isolation (FDI) arises from implementing an observer-based FDI scheme in a closed-loop control system. This paper addresses and proposes a systematic analysis for this issue based on the system sensitivity theory. The results from this study provide a guideline in choosing the optimal location to pick-up signals for residual generation in a closed-loop control system for FDI. The results have been verified by both computer simulation and a real-time implementation on a laboratory-scale electric machine system
Keywords :
closed loop systems; fault diagnosis; machine control; sensitivity analysis; sensors; closed-loop systems; electric machine; fault detection; fault isolation; observer; optimal sensor location; system sensitivity; Computer simulation; Control systems; Electric machines; Fault detection; Guidelines; Laboratories; Optimal control; Real time systems; Sensor systems; Signal generators;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876689
