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Design of a structurally constrained suboptimal controller using an LMI method

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4 Author(s)
Seog-Joo Kim ; I&C Group, Korea Electrotechnology Research Institute (KERI), 28-1, Sung Joo Dong, Changwon, Kyungnam 641-120 Korea (e-mail: sjkim@keri.re.kr). ; Young-Hyun Moon ; Soonman Kwon ; Kook-Hun Kim

This paper is concerned with an iterative linear matrix inequality (LMI) approach to the design of a structurally constrained output feedback controller such as decentralized control. The structured synthesis is formulated as a novel rank-constrained LMI optimization problem, where the controller parameters are explicitly described so as to impose structural constraints on the parameter matrices. An iterative penalty method is discussed to solve the rank-constrained LMI problem. Numerical experiments and comparisons with previous works are performed to illustrate the practicality of the proposed method.

Published in:

Decision and Control, 2005 and 2005 European Control Conference. CDC-ECC '05. 44th IEEE Conference on

Date of Conference:

12-15 Dec. 2005