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Control Systems Engineering, 3rd Edition

Book Description

The book has been designed to cover the complete syllabi of Control Systems taught during various engineering courses at the undergraduate level. It would also help students appearing for competitive examinations like GATE, IAS, IES, NTPC and NHPC. The topics are explained in a simple and lucid manner, with the help of extended derivations accompanied by an exhaustive number of new figures, illustrations and solved examples. Practical applications along with the explanation of key concepts are included.

Table of Contents

  1. Cover
  2. Title Page
  3. Contents
  4. Dedication
  5. Preface to the Third Edition
  6. Preface to the First Edition
  7. Chapter 1: Introductory Concepts
    1. 1.1 Concepts of Plant, System and Control System
    2. 1.2 Basic Components of a Control System
    3. 1.3 Classification of Control Systems
    4. 1.4 Servomechanism, Regulator, Process Control and Disturbance Signal
    5. 1.5 Illustrative Examples of Control Systems
    6. 1.6 Feedback in Control System and Effect of Feedback
    7. Review Questions
  8. Chapter 2: Modelling a Control System–Transfer Function Approach
    1. 2.1 Introduction
    2. 2.2 Transfer Function
    3. 2.3 Procedure for Determining the Transfer Function of a Control System
    4. 2.4 Formulation of Equations of Physical Systems and Their Transfer Functions
    5. Review Questions
  9. Chapter 3: Modelling a Control System–Block Diagram Representation
    1. 3.1 Introduction
    2. 3.2 Advantages of Block Diagram Representation
    3. 3.3 Block Diagram Representation of an Error Detector
    4. 3.4 Block Diagram of a Closed-Loop System and Its Transfer Function
    5. 3.5 Characteristic Equation of a Control System
    6. 3.6 Rules of Block Diagram Simplification
    7. 3.7 Block Diagram Representation of an Electrical Network
    8. 3.8 Block Diagram Representation of Components of a Servomechanism
    9. Review Questions
  10. Chapter 4: Modelling a Control System–Signal Flow Graph
    1. 4.1 Introduction
    2. 4.2 Construction of Signal Flow Graph
    3. 4.3 SFG for Solution of Differential Equations
    4. Review Questions
  11. Chapter 5: Feedback Control System and Effect of Feedback on System Performance
    1. 5.1 Open-Loop and Closed-Loop Control System
    2. 5.2 Feedback Control Systems
    3. 5.3 Effect of Feedback
    4. 5.4 The Cost of Feedback
    5. Review Questions
  12. Chapter 6: Error Analysis
    1. 6.1 Introduction
    2. 6.2 Types of Input Signals
    3. 6.3 Classification of Control Systems
    4. 6.4 Steady-State Error
    5. 6.5 Dynamic Error Coefficients
    6. 6.6 Integral Square Error (ISE) and Its Minimisation
    7. Review Questions
  13. Chapter 7: Time Response Analysis
    1. 7.1 Introduction
    2. 7.2 Time Response of First Order System to Step Input
    3. 7.3 Response of First Order System to Ramp Input
    4. 7.4 Response of First Order System to Impulse Input
    5. 7.5 Time Response of Second Order Systems
    6. 7.6 Dominant Closed-Loop Poles of Higher Order Systems
    7. 7.7 Sensitivity of a Control System
    8. 7.8 Control Actions for Desired Output
    9. 7.9 Transient Response Analysis Using MATLAB
    10. Review Questions
  14. Chapter 8: Concept of Stability and Routh-Hurwitz Criterion
    1. 8.1 Concept of Stability
    2. 8.2 Pole-Zero Location and Conditions for Stability
    3. 8.3 Routh’s Stability Criterion and Its Application
    4. Review Questions
  15. Chapter 9: The Root Locus Technique
    1. 9.1 Introduction
    2. 9.2 The Root Locus Concept
    3. 9.3 Root Locus Construction Procedure
    4. 9.4 Root Locus Construction Rules
    5. 9.5 Root Locus Construction Rules–Illustrated Through Examples
    6. 9.6 Effects of Adding Poles and Zeros to G(S) H(S)
    7. 9.7 Root-Locus Plot with MATLAB
    8. Review Questions
  16. Chapter 10: Frequency Response Analysis
    1. 10.1 Introduction
    2. 10.2 Frequency Response Specifications
    3. 10.3 Correlation Between Time Response and Frequency Response
    4. 10.4 Presentation of Frequency Response in Graphical Form
    5. 10.5 Bode Plot
    6. 10.6 Polar Plot and Nyquist Criterion
    7. 10.7 Summary of Nyquist Stability Criterion and More Examples
    8. 10.8 Drawing Nyquist Plots with MATLAB
    9. 10.9 Relative Stability
    10. 10.10 Frequency Response of a Closed-Loop System Using M-Circle and N-Circle
    11. Review Questions
  17. Chapter 11: Design and Compensation
    1. 11.1 Necessity of Compensation
    2. 11.2 Effect of Adjustment of Gain
    3. 11.3 Compensation by Inserting a Network
    4. 11.4 Lead Compensator
    5. 11.5 Lag Compensator
    6. 11.6 Lag-Lead Compensator
    7. 11.7 Design Procedure
    8. 11.8 PID Controllers
    9. Review Questions
  18. Chapter 12: Concept of State Variable Modelling
    1. 12.1 Introduction
    2. 12.2 Concepts of State, State Variables and State Model
    3. 12.3 State Models of Linear Continuous Time Systems
    4. 12.4 Correlation Between State Model and Transfer Function
    5. 12.5 Diagonalisation of State Matrix
    6. 12.6 Solution of State Equation
    7. 12.7 Concept of Controllability and Observability
    8. Review Questions
  19. Chapter 13: Control Components
    1. 13.1 Introduction
    2. 13.2 Error Detectors–Potentiometers and Synchros
    3. 13.3 Tachogenerators
    4. 13.4 Servo Motors and Gear Trains
    5. 13.5 Transducers
    6. 13.6 Stepper Motors
    7. 13.7 Miscellaneous Control Components
    8. Review Questions
  20. Chapter 14: Matlab Based Problems and Their Solutions
    1. 14.1 MATLAB Functions for Control System
    2. 14.2 Assorted MATLAB-Based Problems
  21. Chapter 15: Introduction to Digital Control Systems
    1. 15.1 Introduction
    2. 15.2 Configuration of Sampled Data Control System
    3. 15.3 Sampling Process
    4. 15.4 Z-Transform
    5. 15.5 Conversion of Laplace Transform to Z-Transform
    6. 15.6 Inverse Z-Transform
    7. 15.7 Properties of Z-Transform
    8. 15.8 Hold Circuits
    9. 15.9 Open Loop Sampled Data Control System
    10. 15.10 Closed Loop Sampled Data Control System
    11. 15.11 State Space Representation of Discrete Time Systems
    12. 15.12 Stability Analysis
    13. Review Questions
  22. Appendix
    1. 1. Laplace Transform
      1. A1.1 Introduction
      2. A1.2 Definition of Laplace Transform
      3. A1.3 Laplace Transform of Some Basic Functions
      4. A1.4 Standard Test Signals
      5. A1.5 Translated Functions
      6. A1.6 Some Laplace Transforms
      7. A1.7 Theorems of Laplace Transform
    2. 2. MATLAB Fundamentals
      1. A2.1 Introduction
      2. A2.2 Statements and Variables
      3. A2.3 Matrices
      4. A2.4 Graphics
      5. A2.5 Scripts
    3. 3. Fuzzy Logic
      1. A3.1 Concept of Fuzzy Logic
      2. A3.2 Basic Notions of Fuzzy Logic
      3. A3.3 Linguistic Variables
      4. A3.4 Fuzzy Control
      5. A3.5 Comparison of Design Methodologies
      6. A3.6 Examples of Fuzzy Controllers
    4. 4. Objective Type Questions
      1. A4.1 Introduction
      2. A4.2 Modelling a Control System–Transfer Function Approach and Block Diagram Approach
      3. A4.3 Modelling a Control System–Signal Flow Graphs
      4. A4.4 Feedback Control System–Characteristics and Performance
      5. A4.5 Error Analysis
      6. A4.6 Time Response Analysis
      7. A4.7 Concept of Stability and Routh–Hurwitz Criteria
      8. A4.8 Root Locus Technique
      9. A4.9 Frequency Response Analysis
      10. A4.10 Design and Compensation
      11. A4.11 Concept of State-Variable Modelling
      12. A4.12 Control Components
    5. 5. Key Terms
  23. Copyright
  24. Back Cover