Luo, Yiping; Xiao, Xing; Cao, Jinde; Li, Anping; Lin, Guohan Event-triggered guaranteed cost consensus control for second-order multi-agent systems based on observers. (English) Zbl 1478.93411 Inf. Sci. 546, 283-297 (2021). Summary: In this paper, the event-triggered guaranteed cost consensus problem is considered for second-order multi-agent systems whose system states are unmeasurable. First, an observer-based distributed event-triggered condition is presented. The triggering time series for each agent is different, and the controller with a time-varying delay is updated only at the triggered times, which can reduce the communication time effectively. Second, using the event-triggered condition and the Lyapunov method, several sufficient conditions are obtained to achieve the guaranteed cost output feedback consensus. Moreover, for each event-triggered interval, a positive lower bound can be calculated, leading to the avoidance of Zeno behaviors. Third, appropriate controller and observer gains can be designed using the linear matrix inequality technique, which is verified through numerical simulations. Cited in 13 Documents MSC: 93C65 Discrete event control/observation systems 93A16 Multi-agent systems 93B52 Feedback control 93D50 Consensus 93B53 Observers Keywords:second-order multi-agent systems; observer; event-triggered scheme; guaranteed cost control; consensus; time-varying delay Software:CEASE PDFBibTeX XMLCite \textit{Y. Luo} et al., Inf. Sci. 546, 283--297 (2021; Zbl 1478.93411) Full Text: DOI References: [1] Amini, A.; Asif, A.; Mohammadi, A., CEASE: A collaborative event-Triggered average-consensus sampled-data framework with performance guarantees for multi-agent systems, IEEE Trans. Signal Process., 66, 23, 6096-6109 (2018) · Zbl 1414.93007 [2] Amini, A.; Asif, A.; Mohammadi, A., A performance guaranteed sampled-data event-triggered consensus approach for linear multi-agent systems, Inf. 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