Adaptive decentralized control of interconnected systems

Date

2004-08-01

Author

Sezer, ME
Altunel, H

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This paper presents a decentralized adaptive stabilization scheme for a class of interconnected systems using high-gain adaptive controllers. The nominal subsystems are assumed to satisfy some mild conditions required by standard adaptive control schemes, and the interconnections certain structural conditions. The decentralized controllers are high-gain dynamic systems operating on local outputs to generate local control inputs. Both continuous-time and sampled-data controllers are considered. The idea behind the design of continuous-time controllers is the small-gain theorem. The sampled-data controllers are discrete versions of the continuous-time controllers. where local sampling frequencies of the controllers also serve as their gains. The controllers are synchronized by a careful choice of their sampling frequencies. In order to guarantee closed-loop stability when the interconnection bounds are unknown, controller gains are increased, using Simple centralized adaptation rule. to sufficiently high values as required by the strength of interconnections. The results are illustrated by a practical example.

Subject Keywords

Interconnected system, Decentralized control, High-gain feedback, Adaptive control, Sampled-data control

URI

https://hdl.handle.net/11511/66035

Journal

DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

M. Sezer and H. Altunel, “Adaptive decentralized control of interconnected systems,” DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, pp. 521–536, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66035.