Event-triggered predictive control for networked control systems with network-induced delays and packet dropouts
Event-triggered predictive control for networked control systems with network-induced delays and packet dropouts
复制标题
具有网络引起的延迟和数据包丢失的网络控制系统的事件触发预测控制
DOI：
10.1002/rnc.3958
复制
发表时间：
2018
影响因子：
3.9
通讯作者：
Xia Yuanqing
中科院分区：
文献类型：
--
作者：
Yang Hongjiu;Guo Xiaodong;Dai Li;Xia Yuanqing
本文提出了一种事件触发的预测控制方法来稳定网络控制系统的网络诱导延迟和数据包丢失，其中状态是不可测量的。首先根据当前时刻的状态估计值与上一次触发时刻的状态估计值之间的偏差设计了一个基于观测器的事件发生器。然后提出了一种带有选择器的预测控制方案来补偿网络引起的延迟和数据包丢失的影响。通过求解线性矩阵不等式，得到了网络控制系统稳定的充分条件，并得到了相应的控制器和观测器增益。结果表明，事件触发实现能够实现减少通信和节省反馈信道网络的带宽资源。一个倒立摆模型的仿真例子说明了所提出的方案的有效性。
This paper presents an event‐triggered predictive control approach to stabilize a networked control system subject to network‐induced delays and packet dropouts, for which the states are not measurable. An observer‐based event generator is first designed according to the deviation between the state estimation at the current time and the one at the last trigger time. A predictive control scheme with a selector is then proposed to compensate the effect of network‐induced delays and packet dropouts. Sufficient conditions for stabilization of the networked control system are derived by solving linear matrix inequalities and the corresponding gains of the controller and the observer are obtained. It is shown that the event‐triggered implementation is able to realize reduction in communication and save bandwidth resources of feedback channel networks. A simulation example of an inverted pendulum model illustrates the efficacy of the proposed scheme.