|Dual-side Event-triggered Output Feedback H∞ Control for NCS with Communication Delays
Fuqiang Li*, Lisai Gao, Gensheng Dou and Baozhou Zheng
International Journal of Control, Automation, and Systems, vol. 16, no. 1, pp.108-119, 2018
Abstract : "This paper studies the dual-side event-triggered output feedback H∞ control for networked control system
with network-induced delays. Unlike continuous-time event-triggered mechanism (ETM) or state-dependent ETM,
the discrete dual-side ETMs are firstly proposed by using plant output and controller output, respectively, which
effectively reduce transmission rate of sampled data in both sensor-to-controller and controller-to-actuator channels.
Then, the closed-loop system is modelled as a time-delay system, which characterizes effects of the dual-side
ETMs and networked-induced delays in a unified framework. Based on the system model, asymptotic stability
criterion satisfying H∞ performance is derived, and conservatism is reduced by the delay decomposition method
and reciprocally convex approach. Moreover, a co-design scheme is presented to design the dual-side ETMs and
controller simultaneously, which is more convenient than two-step design method requiring controllers to be given
a priori. Finally, examples confirm effectiveness of the proposed method."
"Co-design, dynamic output feedback control, event-triggered mechanism, H∞ control, networked control system."