2nd Edition

# Control Engineering

266 Pages
by CRC Press

266 Pages
by CRC Press

266 Pages
by Routledge

Also available as eBook on:

Since its inception, the Tutorial Guides in Electronic Engineering series has met with great success among both instructors and students. Designed for first- and second-year undergraduate courses, each text provides a concise list of objectives at the beginning of every chapter, key definitions and formulas highlighted in margin notes, and references to other texts in the series.

With emphasis on the fundamental ideas and applications of modelling and design, Control Engineering imparts a thorough understanding of the principles of feedback control. Simple but detailed design examples used throughout the book illustrate how various classical feedback control techniques can be employed for single-input, single-output systems. Noting the interdisciplinary nature of control engineering, the author makes the text equally relevant to students whose interests lie outside of electronics by concentrating on general systems characteristics rather than on specific implementations.

The author assumes students are familiar with complex numbers, phasors, and elementary calculus, and while a knowledge of simple linear differential equations would be useful, this treatment has few other mathematical requirements. With its clear explanations, copious illustrations, well-chosen examples, and end-of-chapter exercises, Control Engineering forms an outstanding first-course textbook.

SYSTEMS, OBJECTIVES, AND STRATEGIES
Introduction
Control Strategies
GENERAL CHARACTERISTICS OF FEEDBACK
Modeling a Feedback Loop
Sensitivity of Closed-Loop Gain to Changes in Parameters
Disturbance Rejection
MODELLING DYNAMIC SYSTEMS
The Modelling Approach
A First-Order Differential Equation Model
An Alternative Description of System Behaviour: Frequency Response
An Integrator Model
A Second-Order Lag Model
Higher-Order Models
Time Delays
System Analysis and System Identiication
THE FREQUENCY RESPONSE APPROACH TO CONTROL SYSTEM DESIGN
Closing the Loop
The Nichols Chart
Stability
Integrating Action
The Proportional + Integral Controller
A Design Example
Non-Unity Feedback Systems
A Note of Caution
THE s-PLANE AND TRANSIENT RESPONSE
The Laplace Transform Approach
Poles and Zeros
Calculating System Response
Standard Models and the s-Plane
Higher-Order Systems and Dominance
THE ROOT-LOCUS TECHNIQUE
First-and Second-Order Root Loci
An Alternative Approach
Sketching Simple Root Loci
Root Locus in Analysis and Design
An Intuitive Approach
The Transform Approach
CONTROLLERS AND COMPENSATORS
Three-Term Controllers
Compensators
Disturbance Rejection
DIGITAL CONTROL I: DISCRETE SYSTEM MODELS
Introduction
Sampling and Digitization
The z-Transform
Transfer Function Models
The Unit Sample Response Sequence
Difference Equation Models
The z-Plane
Transient Response and the z-Plane
Stability of Discrete Linear Systems
DIGITAL CONTROL II: SAMPLED DATA SYSTEMS
The Pulse Transfer Function
The Closed Loop Transfer Function
Root Locus in the z-Plane
Varying the Sampling Rate
Simulating Complete System Response
The Relationship between the s-Plane and z-Plane
DIGITAL CONTROL III: INTRODUCTION TO DIGITAL DESIGN
The Digital PID Controller
Digitizing other Continuous Designs
Discretization in the Frequency Domain
Direct Discrete Design
Design Example
COMPUTERS AND CONTROL
Tools for System Modelling and Design
Computers in Controller
A Final Reminder: Know Your Plant!
APPENDICES
Polar Plots
The Routh-Hurwitz Criterion
Frequency Response of Discrete Linear Systems