Brief paper: Optimality of decentralized control for large-scale systems

Authors:
M. Ikeda;D. D. iljak;K. Yasuda
Affiliations:
Department of Systems Engineering, Kobe University, Nada, Kobe 657, Japan;Department of Electrical Engineering and Computer Science, University of Santa Clara, Santa Clara, CA 95053, U.S.A.;Department of Systems Engineering, Kobe University, Nada, Kobe 657, Japan
Venue:
Automatica (Journal of IFAC)
Year:
1983

Citing 4
Cited 0

Paper: Decentralized control of linear multivariable systems

Automatica (Journal of IFAC)
Brief paper: On decentrally stabilizable large-scale systems

Automatica (Journal of IFAC)
Technical communique: On decentralized stabilization and structure of linear large scale systems

Automatica (Journal of IFAC)
Brief paper: The decentralized stabilization and control of a class of unknown non-linear time-varying systems

Automatica (Journal of IFAC)

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Abstract

A decentralized control scheme is given for the stabilization of large-scale linear systems composed of a number of controllable subsystems. A class of interconnection structures among subsystems is defined for which the overall system can always be stabilized by local state feedback which is optimal for a quadratic performance index. The resulting closed-loop system has robust stability properties against a wide range of variations in open-loop dynamics. Optimality of the decentralized control law is preserved for a modified performance index under perturbations in interconnections such that the strength of coupling does not increase. The class of decentrally stabilizable large-scale systems presented in this paper is the largest such class hitherto described by the structure of interconnections.