Event-Triggered Predefined-Time Output Feedback Control for Fractional-Order Nonlinear Systems With Input Saturation

被引:13
作者
Cui, Mengyuan [1 ]
Tong, Shaocheng [1 ]
机构
[1] Liaoning Univ Technol, Coll Sci, Jinzhou 121001, Peoples R China
基金
中国国家自然科学基金;
关键词
Event-triggered mechanism; fractional-order nonlinear systems (FONSs); fuzzy state observer; input saturation; predefined-time control; ADAPTIVE BACKSTEPPING CONTROL; TRACKING;
D O I
10.1109/TFUZZ.2023.3283783
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The event-triggered predefined-time output feedback control problem is considered for fractional-order nonlinear systems (FONSs) with input saturation. The controlled plant contains unknown nonlinear dynamics and unmeasured states. The unknown nonlinear dynamics are handled by using fuzzy approximation technique; a fuzzy state observer is established to estimate unmeasured states and an event-triggered mechanism is given to improve the efficiency of communication resource utilization. The predefined-time stable criterion of FONSs is first developed. Then, an event-triggered predefined-time output feedback control is proposed by using the dynamic surface control technique. Based on the proposed predefined-time stable criterion and Lyapunov function, it is proved that the controlled system is semiglobal practically predefined-time stable and all the signals are bounded in predefined-time interval. Finally, the simulation results are given to confirm the effectiveness of the presented predefined-time control method.
引用
收藏
页码:4397 / 4409
页数:13
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