Event-based fault-tolerant control for networked control systems applied to aircraft engine system
Event-based fault-tolerant control for networked control systems applied to aircraft engine system
复制标题
应用于飞机发动机系统的网络控制系统的基于事件的容错控制
DOI:
10.1016/j.ins.2019.10.039
复制
发表时间:
2020-02
影响因子:
8.1
通讯作者:
李涛
中科院分区:
文献类型:
--
作者:
李涛
This paper studies the observer-based fault-tolerant control (FTC) for a class of networked control systems (NCSs) subject to system fault and external disturbance. Firstly, in order to reduce the number of sampled data transmissions, an improved adaptive event-triggered mechanism (AETM) is proposed, which can not only reflect the whole real-time information of the addressed NCSs, but also help to enlarge the application areas. Then based on the triggered output signals, a combined observer is proposed to estimate the state and system fault, and the estimations are further utilized to design the fault-tolerant controller. By choosing an augmented Lyapunov–Kroasovskii functional (LKF), two sufficient conditions on co-designing the AETM, observer, and controller are presented in terms of linear matrix inequalities (LMIs). Moreover, we adopt the derived methods to tackle the robust FTC for networked aircraft engine model. Finally, two numerical examples are provided to demonstrate the effectiveness of our obtained results by some simulations and comparisons.
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