| 1. |
- Stankovic, Srdjan S., et al.
(författare)
-
Consensus Based Overlapping Decentralized Fault Detection and Isolation
- 2010
-
Ingår i: Proc. Conference on Control and Fault-Tolerant Systems (SysTol). ; , s. 570-575
-
Konferensbidrag (refereegranskat)abstract
- In this paper a new distributed fault detection and isolation (FDI) methodology is proposed in the form of a multi-agent network representing a combination of a consensus based FDI observer for residual generation and a consensus based decision making strategy for change detection, applicable in real time. The proposed observer is based on overlapping system decomposition and a combination between the local optimal stochastic FDI observers and a dynamic consensus strategy. It is shown how the proposed algorithm can generate residuals which provide, under general conditions concerning local models and the network topology, high efficiency, scalability and robustness. The proposed decision making strategy provides solutions for two particular cases: a) local detection for non-overlapping parts of the identified subsystems; b) a consensus based strategy for FDI in the overlapping parts.One selected example illustrates the applicability of the proposed methodology in practice.
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
- Stanković, S., et al.
(författare)
-
Consensus based fault detection and isolation for systems of systems
- 2010
-
Ingår i: 2010 World Automation Congress, WAC 2010. - 9781424496730 ; , s. 1-6
-
Konferensbidrag (refereegranskat)abstract
- In this paper a new algorithm is proposed for distributed fault detection and isolation (FDI), applicable to systems of systems. The algorithm is composed of two stages. The first stage is proposed in the form of a consensus based network of interconnected optimal stochastic FDI observers connected to the constituent systems. At this stage residuals are generated, which provide high efficiency, scalability and robustness under general conditions concerning locally available models and the topology of the overall system. The second stage is aimed at fault detection based on the generated residuals. A new distributed detection algorithm based on consensus is proposed, enabling overall decision at the constituent system level, without fusion center. Simulation results illustrate the efficiency of the proposed algorithm.
|
|
