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Observer-based dynamic event-triggered control for distributed parameter systems over mobile sensor-plus-actuator networks
Chinese Physics B ( IF 1.7 ) Pub Date : 2024-04-01 , DOI: 10.1088/1674-1056/ad1a8c
Wenying Mu , Bo Zhuang , Fang Qiu

We develop a policy of observer-based dynamic event-triggered state feedback control for distributed parameter systems over a mobile sensor-plus-actuator network. It is assumed that the mobile sensing devices that provide spatially averaged state measurements can be used to improve state estimation in the network. For the purpose of decreasing the update frequency of controller and unnecessary sampled data transmission, an efficient dynamic event-triggered control policy is constructed. In an event-triggered system, when an error signal exceeds a specified time-varying threshold, it indicates the occurrence of a typical event. The global asymptotic stability of the event-triggered closed-loop system and the boundedness of the minimum inter-event time can be guaranteed. Based on the linear quadratic optimal regulator, the actuator selects the optimal displacement only when an event occurs. A simulation example is finally used to verify that the effectiveness of such a control strategy can enhance the system performance.

中文翻译:

移动传感器加执行器网络上分布式参数系统的基于观察者的动态事件触发控制

我们为移动传感器加执行器网络上的分布式参数系统开发了一种基于观察者的动态事件触发状态反馈控制策略。假设提供空间平均状态测量的移动传感设备可用于改进网络中的状态估计。为了减少控制器的更新频率和不必要的采样数据传输,构建了一种高效的动态事件触发控制策略。在事件触发系统中,当误差信号超过指定的时变阈值时,表明典型事件的发生。可以保证事件触发闭环系统的全局渐近稳定性和最小事件间时间的有界性。基于线性二次最优调节器,执行器仅在事件发生时选择最优位移。最后通过仿真算例验证了该控制策略能够有效提升系统性能。
更新日期:2024-04-01
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