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Decentralized output feedback control of large-scale nonlinear systems interconnected by unmeasurable states

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3 Author(s)
Frye, M.T. ; Dept. of Electr. Eng., Texas Univ., San Antonio, TX, USA ; Yuanlin Lu ; Chunjiang Qian

This paper studies the problem of global decentralized control by output feedback for large-scale uncertain systems whose subsystems are interconnected not only by their outputs but also by their immeasurable states. We show that under a linear growth condition, there is a decentralized output feedback controller rendering the closed-loop systems globally exponentially stable. This is accomplished by extending the output feedback domination design (C. Qian and W. Lin, 2002) that only needs little information of the nonlinear systems. A time-varying output feedback controller is also constructed for the large-scale systems with unknown parameters.

Published in:

American Control Conference, 2004. Proceedings of the 2004  (Volume:5 )

Date of Conference:

June 30 2004-July 2 2004