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Adaptive decoupling of MIMO systems with constrained inputs. / Mohamed Bennamoun

Public ISBD Titre : Adaptive decoupling of MIMO systems with constrained inputs. Type de document : texte imprimé Auteurs : Mohamed Bennamoun, Auteur Année de publication : 1988 Importance : 137 p. Langues : Anglais (eng) Catégories : Electrotechnique Mots-clés : Adaptive decoupling  MIMO systems  self-tuning controller  SISO  RLS algorithm  square root algorithm  algorithm  interactor matrix  multivariable dynamic systems. Résumé : Control of systems with different input-output time delays is a growing area in the control literature. The interactor matrix is used for purpose. Many control schemes have been suggested assuming knowledge of the interactor matrix. In others it was presumed that the interactor can be decomposed into the product of a lower triangular unimodular matrix and a diagonal matrix. But they also assumed knowledge of the diagonal part which, is not straightforward. The computation of the interactor matrix on-line has been ignored, and very few algorithms have been suggested in this regard. In addition, most of these algorithms require extensive computation. One objective of this thesis is to present two new algorithms. The first, relates to the computation of the interactor matrix for nonsquare systems. The second is designed for square systems, (both algorithms assume knowledge of the system transfer function). Examples are provided to illustrate the effectiveness of the algorithms. The subject of decoupling multivariable systems has also been an active area of research in recent years. Tade et al. (1986) proposed an algorithm to adaptively decouple unknown multivariable systems. The proposed algorithm was characterized by the specification of the decoupling to be achieved in terms of a “reference model” and the minimization of the partial decoupling error introduced in the closed loop system to facilitate on-line estimation of the controller parameters. However, in the minimization process, the control effort was not given due attention. Therefore, a similar algorithm taking this into account is proposed in this thesis. Simulation examples are also given to demonstrate the effectiveness of the algorithm in decoupling and controlling multivariable systems. Directeur de thèse : NSERC Bayoumi’s Adaptive decoupling of MIMO systems with constrained inputs. [texte imprimé] / Mohamed Bennamoun, Auteur . - 1988 . - 137 p. Langues : Anglais (eng) Catégories : Electrotechnique Mots-clés : Adaptive decoupling  MIMO systems  self-tuning controller  SISO  RLS algorithm  square root algorithm  algorithm  interactor matrix  multivariable dynamic systems. Résumé : Control of systems with different input-output time delays is a growing area in the control literature. The interactor matrix is used for purpose. Many control schemes have been suggested assuming knowledge of the interactor matrix. In others it was presumed that the interactor can be decomposed into the product of a lower triangular unimodular matrix and a diagonal matrix. But they also assumed knowledge of the diagonal part which, is not straightforward. The computation of the interactor matrix on-line has been ignored, and very few algorithms have been suggested in this regard. In addition, most of these algorithms require extensive computation. One objective of this thesis is to present two new algorithms. The first, relates to the computation of the interactor matrix for nonsquare systems. The second is designed for square systems, (both algorithms assume knowledge of the system transfer function). Examples are provided to illustrate the effectiveness of the algorithms. The subject of decoupling multivariable systems has also been an active area of research in recent years. Tade et al. (1986) proposed an algorithm to adaptively decouple unknown multivariable systems. The proposed algorithm was characterized by the specification of the decoupling to be achieved in terms of a “reference model” and the minimization of the partial decoupling error introduced in the closed loop system to facilitate on-line estimation of the controller parameters. However, in the minimization process, the control effort was not given due attention. Therefore, a similar algorithm taking this into account is proposed in this thesis. Simulation examples are also given to demonstrate the effectiveness of the algorithm in decoupling and controlling multivariable systems. Directeur de thèse : NSERC Bayoumi’s

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