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Digital Control

Kannan Moudgalya

ISBN: 978-0-470-03144-5 June 2008 568 Pages


Digital control systems are becoming increasingly prevalent and important within industry. In recent years significant progress has been made in their analysis and design – particularly within the areas of microprocessors and digital signal processors. The traditional approach to teaching digital control assumes an understanding of analog control theory; Digital Control, however, teaches the fundamentals of the topics, assuming no prior knowledge of control engineering. Organised into five sections, it discusses modelling, signal processing and identification of plants from measurements, as well as the transfer function approach to, and state space techniques for, control design.
  • Teaches the fundamentals of digital control, enabling the student to exploit the complete potential of digital systems.
  • Presents a number of control techniques including proportional-integral-derivative (PID), pole placement, internal model, minimum variance, model predictive and linear quadratic Gaussian control and their extensions.
  • Provides an extensive introduction to digital signal processing, an essential component to the understanding and implementation of digital controllers; and to the identification of plant models, an important topic in this information era.
  • Includes examples, problems and solutions as well as accompanying MatLAB code.

Digital Control offers an advanced and self-contained textbook to senior undergraduates and postgraduates in chemical, electrical and mechanical engineering and computer science. It will also appeal to practicing systems engineers who need to learn digital control.



List of Matlab Code.

List of Acronyms.

1. Introduction.

2. Modelling of Sampled Data Systems.

I: Digital Signal Processing.

3. Linear System.

4. Z-Transform.

5. Frequency Domain Analysis.

II: Identification.

6. Identification.

III: Transfer Function Approach to Controller Design.

7. Structures and Specifications.

8. Proportional, Integral, Derivative Controllers.

9. Pole Placement Controllers.

10. Special Cases of Pole Placement Control.

11. Minimum Variance Control.

12. Model Predictive Control.

13. Linear Quadratic Gaussian Control.

IV: State Space Approach to controller Design.

14. State Space Techniques in Controller Design.

Appendix A. Supplementary Material.



Index of Matlab Code.

  • Presents digital control from scratch
  • Includes numerous examples, problems, solutions and Matlab code.
  • Developed from three existing lecture courses in digital control, systems identification and intermediate process control.
  • Concludes each chapter with a ‘problems’ section.
  • Highlights the advantages of the polynomial approach.
  • Assumes little or no prior knowledge of analogue control.
  • Offers a very thorough treatment of the z-transform and frequency-domain analysis.
  • Includes a thorough treatment of identification.
  • Attempts the tuning of PID controllers using model-based control techniques.
  • Author is a chemical engineer giving this book a unique, but not exclusive chemical engineering angle.