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Dynamic event-triggered resilient state estimation for time-varying complex networks with Markovian switching
Xianye Bu1, Jinbo Song1, Fengcai Huo2
1School of Electrical Engineering and Information, Northeast Petroleum University, Daqing 163318, China; Artificial Intelligence Energy Research Institute of Northeast Petroleum University, Daqing 163318, China; Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control, Daqing 163318, China; SANYA Offshore Oil & Gas Research Institute, Northeast Petroleum University, Sanya 572024, China.
This study introduces a dynamic event-triggered mechanism (ETM) for resilient state estimation in nonlinear complex networks. This approach optimizes data delivery while ensuring performance guarantees for switching network topologies.
Area of Science:
- Control Systems Engineering
- Network Science
- Information Theory
Background:
- Complex networks with switching topologies present challenges for state estimation.
- Event-triggered mechanisms (ETM) reduce data transmission load.
- Resilient state estimation is crucial for reliable network operation.
Purpose of the Study:
- To develop a resilient state estimation method for nonlinear complex networks with switching topologies.
- To implement a dynamic event-triggered mechanism (ETM) for efficient data scheduling.
- To guarantee H-infinity performance for the state estimation error.
Main Methods:
- Modeling switched complex networks using Markov chains.
- Designing novel estimators utilizing Kronecker product properties and Lyapunov-Krasovskii method.
- Deriving conditions for H-infinity performance using convex optimization.
Main Results:
- A dynamic ETM effectively reduces data delivery in switched complex networks.
- Novel resilient state estimators guarantee prescribed H-infinity performance.
- Parameters for the estimators are obtainable via convex optimization problems.
Conclusions:
- The proposed dynamic ETM and resilient state estimators are effective for nonlinear complex networks with switching topologies.
- The theoretical results are validated through a simulation example.
- This work contributes to robust and efficient state estimation in complex systems.
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