Relay control systems are widely employed in a variety of technological domains because they are simpler and, in many cases, have better dynamic properties than other types of control system. The aim of this book is to present a theory of relay control systems that is based on the concepts of transfer functions and frequency and time characteristics. While giving an account of the general properties of relay control systems, the author devotes ample space to the analysis and computation of concrete examples. Although the reader is assumed to be acquainted with Fourier series and operational calculus, the appendices contain some background mathematics to make the book as self-contained as possible.
This book provides new insight on the problem of closed-loop performance and oscillations in discontinuous control systems, covering the class of systems that do not necessarily have low-pass filtering properties. The author provides a practical, yet rigorous and exact approach to analysis and design of discontinuous control systems via application of a novel frequency-domain tool: the locus of a perturbed relay system. Presented are a number of practical examples applying the theory to analysis and design of discontinuous control systems from various branches of engineering, including electro-mechanical systems, process control, and electronics. Discontinuous Control Systems is intended for readers who have knowledge of linear control theory and will be of interest to graduate students, researchers, and practicing engineers involved in systems analysis and design.
Designed as a textbook for undergraduate students pursuing courses in Electrical Engineering, Electrical and Electronics Engineering, Instrumentation and Control Engineering, and Electronics and Communication Engineering, this book explains the fundamental concepts and design principles of advanced control systems in an understandable manner. The book deals with the various types of state space modelling, characteristic equations, eigenvalues and eigenvectors including the design of the linear systems applying the pole placement technique. It provides step-by-step solutions to state equations and discusses the stability analysis and design of nonlinear control systems applying the phase plane technique, Routh’s criteria, Bode plot, Nyquist plot, Lyapunov’s and function methods. Furthermore, it also introduces the sampled-data control systems explaining the z-transforms and inverse z-transforms. The text is supported with a large number of illustrative examples and review questions to reinforce the student’s understanding of the concepts.
Mathematics in Science and Engineering, Volume 39: Statistical Decision Theory in Adaptive Control Systems focuses on the combination of control theory with statistical decision theory. This volume is divided into nine chapters. Chapter 1 reviews the history of control theory and introduces statistical decision theory. The mathematical description of random processes is covered in Chapter 2. In Chapter 3, the basic concept of statistical decision theory is treated, while in Chapter 4, the method of solving statistical decision problems is described. The application of statistical decision concepts to control problems is explained in Chapter 5. Chapter 6 elaborates a method of designing an adaptive control system. An application of the sequential decision procedure to the design of decision adaptive control systems is illustrated in Chapter 7. Chapter 8 is devoted to the description of a method of the adaptive adjustment of parameters contained in nonlinear control systems, followed by a discussion of the future problems in applications of statistical decision theory to control processes in the last chapter. This book is recommended for students and researchers concerned with statistical decision theory in adaptive control systems.
This comprehensive collection brings together current information on CAD for control systems including present and future trends in computer-aided design exploring the areas of modeling, simulation, simulation languages, environments, and design techniques. Presenting a systems approach to control d
In this book, we study theoretical and practical aspects of computing methods for mathematical modelling of nonlinear systems. A number of computing techniques are considered, such as methods of operator approximation with any given accuracy; operator interpolation techniques including a non-Lagrange interpolation; methods of system representation subject to constraints associated with concepts of causality, memory and stationarity; methods of system representation with an accuracy that is the best within a given class of models; methods of covariance matrix estimation;methods for low-rank matrix approximations; hybrid methods based on a combination of iterative procedures and best operator approximation; andmethods for information compression and filtering under condition that a filter model should satisfy restrictions associated with causality and different types of memory.As a result, the book represents a blend of new methods in general computational analysis,and specific, but also generic, techniques for study of systems theory ant its particularbranches, such as optimal filtering and information compression.- Best operator approximation,- Non-Lagrange interpolation,- Generic Karhunen-Loeve transform- Generalised low-rank matrix approximation- Optimal data compression- Optimal nonlinear filtering
This unique book is the only recent summary presenting a comprehensive, up-to-date and detailed treatment of relay feedback theory, the use of relay feedback for process identification and the use of identified models for general control design in a single volume.
Programmable Logic Controllers – the Complete Guide to the Technology, by C.T. Jones A Great Learning Tool for PLC Beginners! Programmable Logic Controllers includes 15 in-depth chapters that covers the basics, as well as every important aspect of PLCs. Each topic is written in a modular style that allows that each subject be covered thoroughly and in one place. Chapters on specialized topics such as Programming and Documenting the Control System, Introduction to Local Area Networks, and Intelligent I/O provide a plain English and thorough introduction to important related topics. These latter chapters are like books in themselves. This book provides the most comprehensive, practical, and easy to understand source on the subject of PLCs. The answers to the many questions readers have regarding system design, programming, Implementation, startup, and maintenance will be made crystal clear! Book Highlights § 470 pages with Appendix § Extensive Glossary & Index § Over 300 Detailed Illustrations § Modular Presentation of Topics § A Completely Generic Discussion § Both a Training and Reference Tool § Presented in Concise and Easily Read Language § Comprehensive Coverage of Every Important PLC Topic Book Chapters Chapter 1: Introduction to Programmable Controllers Chapter 2: Number Systems, Data Formats, and Binary Codes Chapter 3: The Central Processing Unit and Power Supply Chapter 4: The PLC’s Application Memory Chapter 5: Input/Output System Overview Chapter 6: Discrete Input/Output Modules Chapter 7: Analog Input/Output Modules Chapter 8: Intelligent Input/Output Modules Chapter 9: Programming and Documentation Systems Chapter 10: Introduction to Local Area Networks Chapter 11: The Ladder Programming Language Chapter 12: Alternative Programming Languages Chapter 13: Control System Configuration and Hardware Selection Chapter 14: Programming and Documenting the Control System Chapter 15: Installation, Startup, and Maintenance
This Encyclopedia of Control Systems, Robotics, and Automation is a component of the global Encyclopedia of Life Support Systems EOLSS, which is an integrated compendium of twenty one Encyclopedias. This 22-volume set contains 240 chapters, each of size 5000-30000 words, with perspectives, applications and extensive illustrations. It is the only publication of its kind carrying state-of-the-art knowledge in the fields of Control Systems, Robotics, and Automation and is aimed, by virtue of the several applications, at the following five major target audiences: University and College Students, Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers and NGOs.
