Distributed Functional Observer Based Fault Detection for Interconnected Time-Delay Systems

Autor: H. M. Tran, Hieu Trinh
Rok vydání: 2019
Předmět:
Zdroj: IEEE Systems Journal. 13:940-951
ISSN: 2373-7816
1932-8184
DOI: 10.1109/jsyst.2017.2759257
Popis: This paper presents a novel distributed functional observer based fault detection (FD) scheme for interconnected time-delay systems with unknown inputs. The scheme employs a set of stand-alone residual generators, one at each subsystem, to detect actuator faults in the system. At each subsystem, depending on the strength of the interactions amongst the subsystems, a residual generator is designed by utilizing either a reduced-order distributed or decentralized functional observer. Our FD scheme offers several advantages in terms of simplicity due to the deployment of stand-alone reduced-order functional observers, and reliability owing to the independence of the operation of each residual generator. Two numerical examples are given to illustrate the effectiveness of our proposed FD scheme.
Databáze: OpenAIRE