Event-based nonlinear control: From centralized to decentralized systems

This paper develops a new decentralized event-triggered control strategy for large-scale nonlinear systems. The control systems are assumed to be transformable into an interconnection of input-to-state stable (ISS) subsystems with the sampling errors as the inputs. For the subsystems, the events of data sampling are triggered by appropriately choosing threshold signals, which are independent with each other for the decentralized implementation. Through an ISS small-gain design, infinitely fast sampling can be avoided for each subsystem and asymptotic regulation is achievable for the large-scale system.