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

作者：Hieu Manh Tran; Hieu Trinh^*

来源：IEEE Systems Journal, 2019, 13(1): 940-951.

DOI：10.1109/JSYST.2017.2759257

• Actuator faults
• fault detection (FD)
• functional observers
• interconnected systems
• residual generators
• time-delay systems
• unknown inputs

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-alonereduced-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.

• 出版日期2019-3
• 单位迪肯大学