Amirkabir University of Technology AUT Journal of Electrical Engineering 2588-2910 54 2 2022 12 01 Neighborhood-Based Event-Triggered Distributed Fault Estimation Observer for Multi-Agent Systems 281 294 4854 10.22060/eej.2022.21368.5470 EN Farshad Rahimi Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran. 0000-0003-0484-6444 Hero Shahi Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran. Journal Article 2022 05 03 This study addresses the distributed Fault Estimation control problem for linear multi-agent systems with an event-triggered communication mechanism. In multi-agent systems, a substantial challenge is to find out the size and shape of the occurred faults and how to reduce the wastage of communication bandwidth and unnecessary executions. In order to address these concerns, we proposed a distributed Fault Estimation observer, where each agent employs an augmented system based on a predefined communication graph, and with consideration of its neighbors, to estimate the fault and states both in itself as well as its neighbors, simultaneously. In addition, an event-triggering scheme was implemented in this approach in order to effectively reduce unnecessary signal transmission between the agents and attain a reasonable allocation of resources. Sufficient conditions are presented to guarantee that the closed-loop system is asymptotically stable with prescribed disturbance attenuation, and the parameter matrices of the event-triggered mechanism and observer can be obtained simultaneously by solving a set of Linear Matrix Inequities (LMIs). Eventually, some simulations are included to demonstrate the performance of the introduced Fault Estimation and effectively of the event-triggered mechanism. https://eej.aut.ac.ir/article_4854_0c6b6f19684ed9b6ff07575fcf81c98d.pdf