Boris J. Lurie - Classical Feedback Control with Nonlinear Multi-Loop Systems: With MATLAB® and Simulink®

Classical Feedback Control with Nonlinear Multi-Loop Systems

With MATLAB and Simulink Third Edition

Automation and Control Engineering

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Classical Feedback Control with Nonlinear Multi-Loop Systems

With MATLAB and Simulink
Third Edition

Boris J. Lurie and Paul J. Enright

MATLAB and Simulink are trademarks of the MathWorks, Inc. and are used with permission. The MathWorks does not warrant the accuracy of the text or exercises in this book. This books use or discussion of MATLAB and Simulink software or related products does not constitute endorsement or sponsorship by the MathWorks of a particular pedagogical approach or particular use of the MATLAB and Simulink software.

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Library of Congress CataloginginPublication Data

Names: Lurie, B. J., author. | Enright, Paul J., author.
Title: Classical feedback control with nonlinear multi-loop systems : with
MATLAB and Simulink / Boris J. Lurie and Paul J. Enright.
Other titles: Classical feedback control with MATLAB
Description: Third edition. | Boca Raton : Taylor & Francis, CRC Press,
[2020] | Series: Automation and control engineering | Original edition
publised under title: Classical feedback control with MATLAB. | Includes
bibliographical references and index.
Identifiers: LCCN 2019016601| ISBN 9781138541146 (hardback : alk. paper) |
ISBN 9781351011853 (e-book)
Subjects: LCSH: Feedback control systems. | Nonlinear systems. | MATLAB. |
SIMULINK.
Classification: LCC TJ216 .L865 2020 | DDC 629.8/3028553--dc23
LC record available at https://lccn.loc.gov/2019016601

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Contents

Classical Feedback Control describes the design and implementation of high-performance feedback controllers for engineering systems. The book emphasizes the frequency-domain approach, which is widely used in practical engineering. It presents design methods for linear and nonlinear high-order controllers for single-input, single-output and multi-input, multi-output analog and digital feedback systems. Although the title word classical refers to the frequency-domain approach, this book goes well beyond the over-simplified classical designs that are typically included in contemporary texts on automatic control.

Modern technology allows very efficient design and implementation of high-performance controllers at a very low cost. Conversely, several analysis tools that were previously considered an inherent part of control system courses limit the design to low-order (and therefore low-performance) compensators. Among these are the root-locus method, the detection of right half-plane polynomial roots using the RouthHurwitz criterion, and extensive algebraic calculations using the Laplace transform. These methods are obsolete and are granted only a brief treatment in this book, making room for loop-shaping, Bode integrals, structural simulation of complex systems, multi-loop systems, and nonlinear controllers, all of which are essential for good design practice.

In the design philosophy adopted in Classical Feedback Control , Bode integral relations play a key role. These integrals are employed to estimate the available system performance and to determine the ideal frequency responses that maximize the disturbance rejection and the feedback bandwidth. This ability to quickly analyze the attainable performance, before detailed synthesis and simulation, is critical for efficient system-level trades in the design of complex engineering systems, of which the controller is one of many subsystems. Only at the final design stage do the compensators need to be designed in detail, using high-order approximations of the ideal frequency responses. Nonlinear dynamic compensators are used to provide global stability and to improve transient responses. The controllers are then economically implemented using analog and digital technology.