| Citation: | SONG Pengtao, YANG Qingyu, WEN Guangrui, et al. State feedback periodic event-triggered control for aero-engine distributed systems[J]. Journal of Aerospace Power, 2023, 38（8）：2015-2023 doi: 10.13224/j.cnki.jasp.20210640
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A co-design strategy of periodic event-triggered mechanism and guaranteed cost controller based on linear matrix inequality theory was proposed to balance the contradiction between quality of service and quality of performance in aero-engine distributed control systems. Based on input-to-state stability (ISS) theory, a sufficient condition for the asymptotic stability of closed-loop systems under periodic event-triggered control was presented. The solution method of the controller and the upper bound of cost function were given. Considering the effect of communication delay, the stability criterion of closed-loop systems with delay was established by using piecewise Lyapunov functional method, and the delay margin of closed-loop system under periodic event-triggered control was solved and verified. Simulation results showed that the closed-loop system could achieve better control performance under the combined action of the solved event-triggered mechanism and controller. Moreover, when the trigger parameter setting value was 0.4, it could have a delay stability margin of 0.454 s, and the communication resource saving rate could reach 83%, thus effectively improving the quality of network service.
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