上海大学学报（英文版）
上海大學學報（英文版）
상해대학학보（영문판）
JOURNAL OF SHANGHAI UNIVERSITY (ENGLISH EDITION)
2006年
4期
339-345
,共7页
尤富强%田作华%施颂椒
尤富彊%田作華%施頌椒
우부강%전작화%시송초
fault detection and diagnosis%robust observer%linear systems%time delay%uncertainty
This paper deals with the problem of fault diagnosis problem for a class of linear systems with delayed state and uncertainty.The systems are transformed into two different subsystems. One is not affected by actuator faults so that a robust observer can be designed under certain conditions. The other whose states can be measured is affected by the faults. The proposed observer is utilized in an analytical-redundancy-based approach for actuator and sensor fault detection and diagnosis in time-delay systems. Finally, the applicability and effectiveness of the proposed method is illustrated through numerical examples.
