Multivariable Control

New Concepts and Tools

  • Spyros G. Tzafestas

Table of contents

  1. Front Matter
    Pages i-xxii
  2. General Topics

  3. Uncertain Systems and Robust Control

  4. Algebraic and Optimal Controller Design

  5. Multidimensional Systems

    1. Front Matter
      Pages 381-381
    2. N. J. Theodorou, S. G. Tzafestas
      Pages 383-407
    3. T. Kaczorek
      Pages 409-427
    4. S. G. Tzafestas, N. J. Theodorou
      Pages 429-452
    5. S. Tzafestas, T. Pimenides, P. Stavroulakis
      Pages 453-477
  6. Back Matter
    Pages 501-502

About this book


The foundation of linear systems theory goes back to Newton and has been followed over the years by many improvements such as linear operator theory, Laplace Transformation etc. After the World War II, feedback control theory has shown a rapid development, and standard elegant analysis and synthesis techniques have been discovered by control system workers, such as root-locus (Evans) and frequency response methods (Nyquist, Bode). These permitted a fast and efficient analysis of simple-loop control systems, but in their original "paper-and-pencil" form were not appropriate for multiple­ loop high-order systems. The advent of fast digital computers, together with the development of multivariable multi-loop system techniques, have eliminated these difficulties. Multivariable control theory has followed two main avenues; the optimal control approach, and the algebraic and frequency-domain control approach. An important key concept in the whole multivariable system theory is "ob­ servability and controllability" which revealed the exact relationships between transfer functions and the state variable representations. This has given new insight into the phenomenon of "hidden oscillations" and to the transfer function modelling of dynamic systems. The basic tool in optimal control theory is the celebrated matrix Riccati differential equation which provides the time-varying feedback gains in a linear-quadratic control system cell. Much theory presently exists for the characteristic properties and solution of this Riccati equation.


Generator algebra design development model optimal control system

Editors and affiliations

  • Spyros G. Tzafestas
    • 1
  1. 1.Electrical Engineering DepartmentUniversity of PatrasPatrasGreece

Bibliographic information

  • DOI
  • Copyright Information Springer Science+Business Media B.V. 1984
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-009-6480-8
  • Online ISBN 978-94-009-6478-5
  • Buy this book on publisher's site
Industry Sectors
Materials & Steel
Chemical Manufacturing
Finance, Business & Banking
Consumer Packaged Goods
Energy, Utilities & Environment
Oil, Gas & Geosciences