Authors:
H. M. Tran
and
H. Trinh
Affiliation:
Faculty of Science, Engineering and Built Environment and Deakin University, Australia
Keyword(s):
Time-delay Systems, Fault Detection, Reduced-order Functional Observers, Residual Generators.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Intelligent Control Systems and Optimization
;
Intelligent Fault Detection and Identification
;
Robotics and Automation
;
Surveillance
Abstract:
This paper presents a method for designing residual generators using minimum-order functional observers to
detect actuator and component faults in time-delay systems. Existence conditions of the residual generators
and functional observers are first derived, and then based on a parametric approach to the solution of a generalized
Sylvester matrix equation, we develop systematic procedures for designing minimum-order functional
observers to detect faults in the system. The advantages of having minimum-order observers are obvious from
the economical and practical points of view as cost saving and simplicity can be achieved, particularly when
dealing with high-order complex systems. Extensive numerical examples are given to illustrate the proposed
fault detection scheme. In all the numerical examples, we design minimum-order residual generators and
functional observers to detect faults in the system.