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Event-triggered adaptive predefined-time consensus for multi-agent systems under switching topologies
Zhiheng Dong1, Shuang Shi1, Quan Ouyang1
1College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing, 211106, Jiangsu Province, People's Republic of China.
Abstract:
This paper investigates event-triggered predefined-time (PT) consensus control for leader-follower multi-agent systems subject to input saturation and prescribed performance constraints in the presence of unknown disturbances. Under switching topologies, the proposed protocol guarantees consensus of all agents within a user-defined time while ensuring the tracking error satisfies prescribed-performance constraints. A PT auxiliary signal is incorporated to mitigate input saturation, enabling adaptive compensation for saturation errors. Besides, a distributed estimator is developed for robust coordination, reconstructing the required tracking errors for each agent even under incomplete leader-follower communication. Furthermore, adaptive control is developed to approximate the unknown disturbance and a dynamic event-triggered mechanism is deployed to reduce controller updates. Finally, simulations are conducted to validate the feasibility and superiority of the proposed method.
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