A Decentralized Learning Control Scheme for Constrained Nonlinear Interconnected Systems Based on Dynamic Event-Triggered Mechanism

This article presents a decentralized learning control method for a class of partially unknown nonlinear systems with asymmetric control input constraints and mismatched interconnections via a novel dynamic event-triggering condition. By employing an integral reinforcement learning strategy, the system drift dynamics can be avoided in the learning process. Meanwhile, a critic neural network is designed to obtain the approximated value function and tuned by using the gradient descent approach. Furthermore, a novel dynamic event-triggering condition is designed to determine the occurrence of an event by introducing a dynamic variable. By using the Lyapunov theory, all signals in the closed-loop system are proved to be uniformly ultimately bounded. Finally, we present a nonlinear interconnected system and an interconnected power system to verify the effectiveness of the proposed method.

Automated summary

This article presents a decentralized learning control method for partially unknown nonlinear systems with asymmetric control input constraints and mismatched interconnections. The method utilizes integral reinforcement learning to avoid system drift dynamics and uses a critic neural network to obtain the approximated value function. A novel dynamic event-triggering condition is also introduced to determine the occurrence of an event. The effectiveness of the proposed method is verified through experiments on nonlinear interconnected and power systems.