A novel event-triggered mechanism for networked cascade control system with stochastic nonlinearities and actuator failures
A novel event-triggered mechanism for networked cascade control system with stochastic nonlinearities and actuator failures
复制标题
具有随机非线性和执行器故障的网络串级控制系统的新型事件触发机制
DOI：
10.1016/j.jfranklin.2019.01.021
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发表时间：
2019-03
期刊：
影响因子：
--
通讯作者：
Mouquan Shen
中科院分区：
文献类型：
--
作者：
Zhou Gu;Tao Zhang;Huan Zhao;Mouquan Shen
研究网络化串级控制系统的事件触发控制。与传统的事件触发机制预先设定一个固定的阈值来降低数据发布速率不同，本文提出了一种自适应的事件触发机制（ETM）。该ETM具有以下优点：（1）数据释放速率保持在较低水平，节省了有限的网络带宽;（2）ETM的阈值随着时间的推移逐渐增大，直到下一个事件产生，从而提高了控制系统的可靠性。建立了考虑随机非线性、执行器故障和ETM的网络化串级控制系统综合模型。给出了网络化串级控制系统均方稳定和镇定的充分条件。最后，两个例子被用来说明所提出的方法的有效性。
This paper deals with the event-triggered control for networked cascade control systems. Unlike conventional event-triggered schemes that predetermine a fixed threshold to reduce the data-releasing rate, this paper proposes a novel event-triggered mechanism (ETM) in an adaptive way. Under this ETM, it has the following merits: (1) the data-releasing rate remains at a lower level so as to save limited network bandwidth; (2) the reliability of control systems can be improved since the threshold of ETM is increased gradually with the elapse of time till the next event is generated. An integrated model of networked cascade control systems with consideration of stochastic nonlinearity, actuator failures and ETM is established. Sufficient conditions are obtained to ensure the mean-square stability and stabilization of networked cascade control systems. Finally, two examples are exploited to show the effectiveness of the proposed method.
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影响因子：
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DOI：
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