Memory-event-triggering H∞ reliable control for networked jacket platforms against earthquakes and stochastic actuator faults

En-Zhi Cao, Bao-Lin Zhang, Zhihui Cai, Binrui Wang and Qing Li

International Journal of Systems Science, 2021, vol. 52, issue 6, 1171-1191

Abstract: This paper deals with the problems of networked modelling and memory-event-triggering $ H_{\infty } $ H∞ reliable control for steel jacket-type platforms in network environments. First, a networked model of the jacket platform against earthquakes and probabilistic actuator faults is established. Based on this model, a memory-based event-triggering communication scheme is introduced to account for the constrained communication resources. A distinct feature of the proposed triggering scheme is that it has great potential to identify and trigger the significantly changed data than the existing ones without ‘memory’. Then, by formulating the network-based closed-loop platform system as a stochastic delay system, some sufficient conditions are derived for co-designing the desired controller and the triggering scheme. Finally, comparative simulation results are provided to demonstrate the effectiveness and merits of the proposed triggering and control co-design method. It is shown that compared with some existing event-triggering control methods, the proposed memory-event-triggering $ H_{\infty } $ H∞ reliable controller is effective to mitigate vibrations of the jacket platform and is potentially advantageous to save more network bandwidth and control cost.

Date: 2021
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DOI: 10.1080/00207721.2021.1883765

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