Abstract
The decentralized event triggered control problem is investigated for nonlinear interconnected systems in strict-feedback form subjected to parametric uncertainty. For each subsystem in the interconnected systems, the decentralized adaptive backstepping controller is designed to guarantee that the tracking error is semi-globally ultimately bounded. The control update and parameter estimate action are aperiodical executed only when the desired control specifications cannot be ensured, drastically reducing the computational burden and the transmission cost. It can be proved that zeno phenomenon is avoided as a positive lower bound on the minimal inter-sample time exists. The impulsive dynamical systems tools and Lyapunov analysis are introduced to prove the stability property for closed-loop system. Finally, a numerical simulation example is included to validate the effectiveness of the control scheme.
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Recommended by Associate Editor Guangdeng Zong under the direction of Editor Hamid Reza Karimi. This study was funded by National Natural Science Foundation of China (Grant No. 61603274), Research Project of Tianjin Municipal Education Commission(Grant No.2017KJ249), National Natural Science Foundation of China (Grant No. 61673294), and Natural Science Foundation of Tianjin City (Grant No. 18JCQNJC74600).
Yuehui Ji received her B.S. and Ph.D. degrees from School of Electrical Engineering and Automation at Tianjin University, China, in 2009 and 2012, respectively. She is currently working as a lecturer in School of Electrical and Electronic Engineering, Tianjin University of Technology, China. Her research interests include nonlinear adaptive control, decentralized control for interconnected systems.
Hailiang Zhou received his B.S. and Ph.D. degrees from School of Electrical Engineering and Automation at Tianjin University, China, in 2009 and 2012, respectively. He is currently working as a Senior Engineer in Tianjin Institute of Metrological Supervision and Testing(TIMST), China. His research interests include nonlinear control, tracking control for quadrotor.
Qun Zong received his B.S. and Ph.D. degrees from School of Electrical Engineering and Automation at Tianjin University, China, in 1988 and 2003, respectively. He is currently working as a Professor in School of Electrical and Information Engineering, Tianjin University, China. His research interests include guidance control and simulation for aircraft, formation and coordination control for multi-agent systems, fault diagnosis and fault-tolerant control.
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Ji, Y., Zhou, H. & Zong, Q. Decentralized Adaptive Event-triggered Control for Nonlinear Interconnected Systems in Strict-feedback Form. Int. J. Control Autom. Syst. 18, 980–990 (2020). https://doi.org/10.1007/s12555-019-0461-2
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DOI: https://doi.org/10.1007/s12555-019-0461-2