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Stability analysis of decentralized adaptive backstepping control systems with actuator failures
Authors:Wei Wang  Changyun Wen  Guanghong Yang
Institution:(1) School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang, 639798, Singapore;(2) College of Information Science and Engineering, Northeastern University, Shenyang, 110004, China
Abstract:In this paper, the authors analyze the stability of a class of interconnected systems with subsystem unmodeled dynamics and dynamic interactions employing decentralized adaptive controllers designed by Wen, Zhou, and Wang (2008) in the presence of actuator failures. It will be shown that the global stability of the remaining closed-loop system is still ensured and the outputs are also regulated to zero when some subsystems break down.
Keywords:Actuator failure  adaptive control  backstepping  decentralized control  stability analysis
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