Sampled-Data-Based Event-Triggered Synchronization Strategy for Fractional and Impulsive Complex Networks With Switching Topologies and Time-Varying Delay

2021 ◽  
pp. 1-13
Author(s):  
Taotao Hu ◽  
Ju H. Park ◽  
Xinzhi Liu ◽  
Zheng He ◽  
Shouming Zhong
Keyword(s):  
Complex Networks ◽  
Time Varying ◽  
Sampled Data ◽  
Time Varying Delay ◽  
Switching Topologies ◽  
Varying Delay ◽  
Event Triggered

scholarly journals Event-Based Nonfragile H∞ Filter Design for Networked Control Systems with Interval Time-Varying Delay

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Zhongda Lu ◽  
Guangtao Ran ◽  
Guoliang Zhang ◽  
Fengxia Xu
Keyword(s):  
Networked Control Systems ◽  
Filter Design ◽  
Linear Matrix ◽  
Time Varying ◽  
Sampled Data ◽  
Interval Time ◽  
Time Varying Delay ◽  
Error System ◽  
Varying Delay ◽  
Event Triggered

This paper first investigates the event-triggered nonfragile H∞ filter design for a class of nonlinear NCSs with interval time-varying delay. An event-triggered scheme is addressed to determine sampled data to be transmitted so that network communication resource can be saved significantly. The nonfragile filter design is assumed to include multiplicative gain variations according to the filter’s implement. Under the event-triggered scheme, the filtering error system is modeled as a system with interval time-varying delay. By constructing a new Lyapunov-Krasovskii functional and employing Wirtinger inequality, a sufficient condition is derived, which guarantees that the filtering error system is asymptotically stable with the prescribed H∞ performance. The nonfragile filter parameters are obtained by solving a set of linear matrix inequalities. Two numerical examples are given to show the usefulness and the effectiveness of the proposed method.

Event-triggered uniform ultimate bound control for linear systems with time-varying delay

2019 ◽  
Vol 41 (15) ◽  
pp. 4263-4273
Author(s):  
Yanliang Cui ◽  
Lanlan Xu
Keyword(s):  
Linear Systems ◽  
Design Method ◽  
Time Interval ◽  
Time Varying ◽  
Sampled Data ◽  
Convergence Region ◽  
Time Varying Delay ◽  
Event Trigger ◽  
Varying Delay ◽  
Event Triggered

This paper investigates an effective event-triggered control for linear systems with time-varying delay. For reducing the sampled data transmission amount, a novel event-trigger is proposed wherein a state-independent threshold is involved. For guaranteeing uniformly ultimately bounded stability, an event-triggered feedback control law is proposed. By aid of a new free-weight matrix technique, the event-trigger and control co-design method is conveniently obtained. By pre-specifying the threshold of the event-trigger, the event-triggered frequency and the ultimate state convergence region can be simultaneously regulated. In addition, the convergence rate of closed-loop system is pre-specifiable as well. More significantly, the minimal event-triggering time interval is given. During that time interval, the event-trigger can not be violated, thus the Zeno phenomena is excluded naturally. Numerical examples are provided to demonstrate the effectiveness of the proposed method.

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