Thesis (M. Soc. Sc.)--University of Hong Kong, 1989.

Thesis (M. Phil.)--University of Hong Kong, 1989.

published_or_final_version / Mechanical Engineering / Master / Master of Philosophy

Thesis (Ph. D.)--University of Adelaide, Dept. of Electrical and Electronic Engineering, 1987. / Includes bibliographical references (leaves 329-348).

Thesis (M.Soc.Sc.)--University of Hong Kong, 1989. / Also available in print.

published_or_final_version / Statistics / Master / Master of Social Sciences

Bibliography: leaves 329-348 / xxi, 348 leaves : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Electrical and Electronic Engineering, 1987

Prompted by the desire to increase the industrial applicability range of self-tuning control, the objective of this work has been to extend the standard linear self-tuning framework to facilitate the design of self-tuning controllers for bilinear systems. Bilinear systems form a well structured class of non-linear systems within which linear systems coexist as a special subclass. They are, therefore, appropriate for modelling a wider range of processes and plant than the restrictive, yet convenient, linear model structures since such models are valid both within the linear subregion and beyond. In addition to extending the self-tuning framework for bilinear systems another significant contribution of the Thesis is the introduction of a cautious least squares estimation procedure which also enhances the existing linear self-tuning schemes.

Over the last decade, considerable effort has been devoted to the implementation and analysis of self-tuning controllers on systems which are assumed to be represented exactly by linear dynamical models. In this thesis we examine the robustness of the self-tuning controller, when applied to systems consisting of a nominal linear plant which may have linear or nonlinear perturbations. Robust stability is the primary criterion and most of the results are for the Clarke-Gawthrop version of the self-tuning controller. Conditions are derived for the robust stability of the adaptively controlled system in terms of the design choices available to the engineer setting up the self-tuning controller. These are strong stability results in that they are in terms of both 1₂ and 1_∞ stability. The results are shown to be applicable to the general delay case and in the presence of non-zero mean disturbances. Preliminary results are also obtained for the robust stability of the explicit self-tuning controller.

Thesis (Ph.D.) -- McMaster University, 2002. / Includes bibliographical references (leaves 246-253). Also available via World Wide Web.