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Adaptive Control of Uncertain Nonlinear Systems via Event-Triggered Communication and NN Learning

Liu, X., Xu, B., Cheng, Y., Wang, H.ORCID: 0000-0003-2789-9530 and Chen, W. (2021) Adaptive Control of Uncertain Nonlinear Systems via Event-Triggered Communication and NN Learning. IEEE Transactions on Cybernetics . Early Access.

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This article concentrates on adaptive tracking control of strict-feedback uncertain nonlinear systems with an event-based learning scheme. A novel neural network (NN) learning law is proposed to design the adaptive control scheme. The NN weights information driven by the prediction-error-based control process is intermittently transmitted in the event-triggered context to the NN learning law mainly for signal tracking. The online stored sampled data of NN driven by the tracking error are utilized in the event context to update the learning law. With the adaptive control and NN learning law updated via the event-triggered communication, the improvements of NN learning capability, tracking performance, and system computing resource saving are guaranteed. In addition, it is proved that the minimum time interval for triggering errors of the two types of events is bounded and the Zeno behavior is strictly excluded. Finally, simulation results illustrate the effectiveness and good performance of the proposed control method.

Item Type: Journal Article
Murdoch Affiliation(s): Engineering and Energy
Centre for Water, Energy and Waste
Publisher: IEEE
Copyright: © 2022 IEEE.
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