Finite frequency domain H∞ consensus control of neutral multi-agent systems with input delay

Ao Dun, Qianjiao Xu and Fei Lei

International Journal of Systems Science, 2023, vol. 54, issue 1, 136-152

Abstract: The finite frequency domain $ H_{\infty } $ H∞ consensus control problem of neutral multi-agent systems with the input delay is investigated in this paper for the first time. According to the linear transformation, the problem of $ H_{\infty } $ H∞ consensus is converted into a set of $ H_{\infty } $ H∞ stability problems. Through the Lyapunov theory, combined with the time-delay interval decomposition method, a less conservative controller design method for the state feedback controller is presented. And the obtained controller can ensure closed-loop multi-agent systems to fulfil the consensus. Utilizing the generalised Kalman-Yakubovich-Popov (GKYP) lemma, the sufficient condition is derived for multi-agent systems achieving the $ H_{\infty } $ H∞ performance in the finite frequency domain (FFD). Then, via the orthogonal spatial information of the input matrix, the conservativeness of obtained design approach is further declined. Moreover, the design method with less conservativeness is proposed for the dynamic output feedback controller. Finally, a numerical case and a multi-pendulum system controlled by the multi-motor system are presented in this paper to demonstrate the availability and applicability of the proposed methods.

Date: 2023
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DOI: 10.1080/00207721.2022.2111234

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