A tuning algorithm for multivariable restricted structure control systems using subspace identification

A. Sanchez, M.R. Katebi, M.A. Johnson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper presents a new method to design a restricted structure controller driving a multivariable plant using subspace identification methods. The algorithm employs data collected from closed-loop operation to identify an open-loop model of the plant using subspace identification. The method also requires knowledge of the first N impulse responses from the controller. The multivariable controller parameters are calculated by minimising a finite horizon LQG criterion subject to nonlinear constraints. Three simulation case studies are presented.
Original languageEnglish
Pages (from-to)745-770
Number of pages25
JournalInternational Journal of Adaptive Control and Signal Processing
Volume18
Issue number9
DOIs
Publication statusPublished - 2004

Keywords

  • subspace identification
  • multivariable system
  • restricted-structure
  • tuning
  • adaptive control
  • control systems

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