Control Engineering (Paperback, 2 ed)

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
Linearization about an Operating Point
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
STEADY-STATE PERFORMANCE
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
Answers to Numerical Problems
Further Reading
INDEX