Control Strategy for Time-Delay Systems

Part I: Concepts and Theories

1st Edition - November 21, 2020
Imprint: Academic Press
Editors: Mohammad-Hassan Khooban, Tomislav Dragicevic
Language: English
Paperback ISBN:
9 7 8 - 0 - 1 2 - 8 2 0 5 9 9 - 0
eBook ISBN:
9 7 8 - 0 - 1 2 - 8 2 0 6 1 4 - 0

Control Strategy for Time-Delay Systems Part I: Concepts and Theories covers all the important features of real-world practical applications which will be valuable to practicin… Read more

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Control Strategy for Time-Delay Systems Part I: Concepts and Theories covers all the important features of real-world practical applications which will be valuable to practicing engineers and specialists, especially given that delays are present in 99% of industrial processes. The book presents the views of the editors on promising research directions and future industrial applications in this area. Although the fundamentals of time-delay systems are discussed, the book focuses on the advanced modeling and control of such systems and will provide the analysis and test (or simulation) results of nearly every technique described.

For this purpose, highly complex models are introduced to ‎describe the mentioned new applications, which are characterized by ‎time-varying delays with intermittent and stochastic nature, several types of nonlinearities, and the presence ‎of different time-scales. Researchers, practitioners, and PhD students will gain insights into the prevailing trends in design and operation of real-time control systems, reviewing the shortcomings and future developments concerning practical system issues, such as standardization, protection, and design.

Cover image
Title page
Table of Contents
Copyright
List of contributors
Preface
Chapter One: An overview of time-delay control systems
Abstract
Acknowledgement
1.1. Introduction
1.2. Sources of time-delays
1.3. Models and solutions
1.4. Stability notion
1.5. Stability theorems
1.6. Stability results for linear delay systems
1.7. Model transformations
1.8. Delay-dependent stabilization
1.9. Resilient delay-dependent control
1.10. The cart-pole system
1.11. Kalman filtering
1.12. Networked control systems
1.13. Interconnected systems
1.14. Conclusions and future work
References
Chapter Two: Stabilization techniques for large input-delay systems with uncertainty
Abstract
2.1. Introduction
2.2. Problem statement
2.3. Asymptotical predictors
2.4. Sequential subpredictors
2.5. Robust controller synthesis using SSP
2.6. MCCL method
2.7. Conclusion and future works
References
Chapter Three: Discrete-time adaptive control of time-delayed linear systems
Abstract
3.1. Introduction
3.2. Problem definition
3.3. Control law design and stability analysis
3.4. Control law design for uncertain time delay
3.5. Simulation example
3.6. Conclusion
References
Chapter Four: On a quasioptimal spectrum assignment for delayed systems
Abstract
Acknowledgements
4.1. Introduction
4.2. Preliminaries
4.3. The use of RQM ring to controller design
4.4. Spectral abscissa minimization
4.5. Quasioptimal zeros-poles assignment algorithm
4.6. Future research possibilities
4.7. Conclusions
References
Chapter Five: Fuzzy model predictive control of discrete nonlinear systems with time-varying delay
Abstract
5.1. Introduction
5.2. Problem formulation
5.3. MPC approach
5.4. Example: time-delay CSTR system
5.5. Discussions
5.6. Conclusions
References
Chapter Six: Observability and observer design of time-delay linear systems with unknown inputs
Abstract
6.1. Introduction
6.2. Observability notions
6.3. Some concepts related to the polynomial ring R[δ]
6.4. Observability matrix
6.5. Sufficient conditions for UI observability
6.6. Observer design
6.7. Observer normal form
6.8. Unknown input observer design
6.9. Illustrative example
6.10. Conclusions
Appendix 6.A. Pseudocode for the observability observer design
References
Chapter Seven: Adaptive-robust controller for a class of systems with time-varying input delay and state-dependent uncertainty
Abstract
7.1. Introduction
7.2. System dynamics and problem formulation
7.3. Adaptive-robust time delay controller (ARTDC): design and analysis
7.4. Simulation results
7.5. Application: nonholonomic WMR
7.6. Conclusion and future work
Appendix 7.A. Simulation code
References
Chapter Eight: Adaptive control of large-scale systems with long input and state delays and time-varying delays in the uncertain nonlinear interconnections
Abstract
8.1. Introduction
8.2. Input delay compensation
8.3. Problem formulation and assumptions
8.4. Design controller
8.5. Simulation results
8.6. Conclusions
References
Chapter Nine: Lambert W function approach to analysis and stabilization of time-delay systems
Abstract
9.1. Introduction
9.2. Preliminaries
9.3. Utilization of the Lambert W function for multidimensional time delay systems
9.4. Stabilization of time-delay systems
9.5. Conclusions
References
Chapter Ten: Control of constrained discrete-time systems with time-varying state delay
Abstract
10.1. Introduction
10.2. State-delayed systems and stabilization problems
10.3. Mathematical preliminaries
10.4. Stabilization conditions
10.5. Numerical examples
10.6. Future directions
10.7. Concluding remarks
References
Chapter Eleven: Robust output feedback control of linear state-delayed systems using dynamic IQCs
Abstract
11.1. Introduction
11.2. Problem statement and preliminaries
11.3. Main results
11.4. Examples
11.5. Conclusions
Appendix 11.A. The mfile to solve the IQC-based robust output-feedback control synthesis
References
Index

Mohammad-Hassan Khooban

Dr. Mohammad-Hassan Khooban is an Assistant Professor in the Department of Engineering and the Director of the Power Circuits and Systems Research Group at Aarhus University in Denmark. He has authored or co-authored more than 220 publications in peer-reviewed journals (mostly IEEE) and international conferences, written three book chapters, and holds one patent. He has been involved in six national and international projects. He was identified in 2019, 2020, and 2021 by Stanford University as one of the world’s top 2% researchers in engineering. He was also ranked 16th in the list of top 30 Electronics and Electrical Engineering Scientists in Denmark in 2022. His research interests include the application of advanced control, and optimization of artificial intelligence-inspired techniques in power electronics and systems.

Affiliations and expertise

Department of Engineering - Cyper-Physical Systems, Aarhus University, Aarhus N, Denmark

Tomislav Dragicevic

Tomislav Dragičević received the M.Sc. and the industrial Ph.D. degrees in Electrical Engineering from the Faculty of Electrical Engineering, Zagreb, Croatia, in 2009 and 2013, respectively. From 2013 until 2016 he has been a Postdoctoral research associate at Aalborg University, Denmark. From March 2016 he is an Associate Professor at Aalborg University, where he leads an Advanced Control Lab. His principal field of interest is design and control of microgrids, and application of advanced modeling and control concepts to power electronic systems. He has authored and co-authored more than 155 technical papers in his domain of interest, 8 book chapters and a book in the field. He serves as Associate Editor in the IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. He is a recipient of the Končar prize for the best industrial PhD thesis in Croatia, and a Robert Mayer Energy Conservation award.

Affiliations and expertise

Associate Professor, The Faculty of Engineering and Science, Department of Energy Technology Power Electronic Systems Aalborg University, Aalborg, Denmark

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