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Original Articles

Decentralised adaptive control of switched interconnected high-order nonlinear systems with unknown control direction and time-delay

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Pages 875-885 | Received 23 Dec 2015, Accepted 21 Aug 2017, Published online: 06 Sep 2017
 

ABSTRACT

This paper studies the dynamic state feedback control problem for a class of interconnected large-scale switched high-order nonlinear systems with unknown control direction and time-varying time-delay. The adaptive laws are designed to estimate the bounds of switched parameters under arbitrary switching for subsystems. The Nussbaum function is used to deal with the unknown control direction problem. By combining the backstepping and homogeneous domination technique, the decentralised adaptive control strategies are developed and the resulting closed-loop system is asymptotically stable. Finally, a simulation example is given and the results show the effectiveness of the proposed control design method.

Acknowledgments

This work was supported in part by the National Natural Science Foundation of China under Grant 61290322, Grant 61673335, Grant 61603329,Grant 61603330, and Grant 61503323, in part by the Basic Research Program of Hebei Province under Grant F2016203467, in part by the Hebei Province Applied Basis Research Project under Grant 15967629D, and in part by the Top Talents Project of Hebei Province and Yanshan University Project under Grant 13LGA020.

Disclosure statement

No potential conflict of interest was reported by the authors.

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