Brief paper: reliable control for networked control systems with probabilistic sensors and actuators faults
Brief paper: reliable control for networked control systems with probabilistic sensors and actuators faults
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DOI：
10.1049/iet-cta.2009.0441
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发表时间：
2010-08
影响因子：
2.6
通讯作者：
E. Tian;Yue Dong;Chen Peng
中科院分区：
文献类型：
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作者：
E. Tian;Yue Dong;Chen Peng
研究了网络控制系统在传感器和执行器同时发生概率故障时的可靠控制器设计问题。每个传感器或执行器的故障是随机发生的，其故障率由两组不相关的满足一定概率分布的随机变量决定。根据每个传感器或执行器的概率故障，提出了一种新型的分布式NCS故障模型。基于新建立的模型，设计了可靠控制器，并利用李雅普诺夫泛函方法得到了网络控制系统指数均方稳定的充分条件。该故障模型和方法的主要贡献在于其实用性和通用性，它包含了网络控制系统中的许多实际问题，如传感器或执行器的概率故障、部分退化、数据失真、数据包丢失、网络诱导延迟等，并且，一些公开文献中的现有模型被视为该故障模型的特例。以垂直起降飞机系统为例，说明了该方法的有效性和应用性。
This study is concerned with the reliable controller design for networked control systems (NCS) against both probabilistic sensors faults and actuators faults. The faults of each sensor or actuator occur randomly and their failure rates are governed by two sets of unrelated random variables satisfying certain probabilistic distribution. In terms of the probabilistic failures of every sensor or actuator, new type of distribution-based NCS fault model is proposed. Based on the new built model, reliable controller is designed and sufficient conditions for the exponentially mean square stability (EMSS) of NCS are obtained by using Lyapunov functional method. The main contribution of the proposed fault model and methods lies with its practicality and generalisation, which contains many realistic problems in the NCS, such as probabilistic sensors or actuators failures, partial degradation, data distortion, packet dropout, network-induced delay and so on. Moreover, some existing models in the open literatures are deemed as special cases of the proposed fault model. To illustrate the implementation procedure, a vertical take-off and landing (VTOL) aircraft system is given to show the effectiveness and application of the proposed method.