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Book Description

Electric Motors and Drives: Fundamentals, Types and Applications, Fifth Edition is intended primarily for non-specialist users or students of electric motors and drives, but many researchers and specialist industrialists have also acknowledged its value in providing a clear understanding of the fundamentals. It bridges the gap between specialist textbooks (too analytical for the average user) and handbooks (full of detail but with little insight) providing an understanding of how each motor and drive system works.

The fifth edition has been completely revised, updated and expanded. All of the most important types of motor and drive are covered, including d.c., induction, synchronous (including synchronous reluctance and salient Permanent Magnet), switched reluctance, and stepping. There has been significant innovation in this area since the fourth edition, particularly in the automotive, aircraft and industrial sectors, with novel motor topologies emerging, including hybrid designs that combine permanent magnet and reluctance effects. We now include a physical basis for understanding and quantifying torque production in these machines, and this leads to simple pictures that illuminate the control conditions required to optimise torque. The key converter topologies have been brought together, and the treatment of inverter switching strategies expanded.

A new chapter is devoted to the treatment of Field Oriented control, reflecting its increasing importance for all a.c. motor drives. A unique physically-based approach is adopted which builds naturally on the understanding of motor behaviour developed earlier in the book: the largely non-mathematical treatment dispels much of the mystique surrounding what is often regarded as a difficult topic.

  • Helps users acquire knowledge and understanding of the capabilities and limitations of motors and drives without struggling through unnecessary math and theory
  • Presents updated material on the latest and most widely-used motors and drives, including brushless servo motors
  • Includes additional diagrams and worked examples throughout this updated edition
  • Includes a physical basis for the understanding and quantifying torque production

Table of Contents

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. Preface
  6. Chapter 1: Electric motors—The basics
    1. Abstract
    2. 1.1 Introduction
    3. 1.2 Producing rotation
    4. 1.3 Magnetic circuits
    5. 1.4 Torque production
    6. 1.5 Torque and motor volume
    7. 1.6 Energy conversion—Motional e.m.f
    8. 1.7 Equivalent circuit
    9. 1.8 Constant voltage operation
    10. 1.9 General properties of electric motors
    11. 1.10 Review questions
  7. Chapter 2: Power electronic converters for motor drives
    1. Abstract
    2. 2.1 Introduction
    3. 2.2 Voltage control—D.C. output from d.c. supply
    4. 2.3 D.C. from a.c.—Controlled rectification
    5. 2.4 A.C. from d.c.—Inversion
    6. 2.5 A.C. from a.c.
    7. 2.6 Inverter switching devices
    8. 2.7 Converter waveforms, acoustic noise, and cooling
    9. 2.8 Review questions
  8. Chapter 3: D.C. motors
    1. Abstract
    2. 3.1 Introduction
    3. 3.2 Torque production
    4. 3.3 Motional e.m.f.
    5. 3.4 D.C. motor—steady-state characteristics
    6. 3.5 Transient behaviour
    7. 3.6 Four quadrant operation and regenerative braking
    8. 3.7 Shunt and series motors
    9. 3.8 Self-excited d.c. machine
    10. 3.9 Toy motors
    11. 3.10 Review questions
  9. Chapter 4: D.C. motor drives
    1. Abstract
    2. 4.1 Introduction
    3. 4.2 Thyristor d.c. drives—general
    4. 4.3 Control arrangements for d.c. drives
    5. 4.4 Chopper-fed d.c. motor drives
    6. 4.5 D.C. servo drives
    7. 4.6 Digitally-controlled drives
    8. 4.7 Review questions
  10. Chapter 5: Induction motors—Rotating field, slip and torque
    1. Abstract
    2. 5.1 Introduction
    3. 5.2 The rotating magnetic field
    4. 5.3 Torque production
    5. 5.4 Influence of rotor current on flux
    6. 5.5 Stator current-speed characteristics
    7. 5.6 Review questions
  11. Chapter 6: Induction motor—Operation from 50/60 Hz supply
    1. Abstract
    2. 6.1 Introduction
    3. 6.2 Methods of starting cage motors
    4. 6.3 Run-up and stable operating regions
    5. 6.4 Torque-speed curves—Influence of rotor parameters
    6. 6.5 Influence of supply voltage on torque-speed curve
    7. 6.6 Generating
    8. 6.7 Braking
    9. 6.8 Speed control (without varying the stator supply frequency)
    10. 6.9 Power-factor control and energy optimisation
    11. 6.10 Single-phase induction motors
    12. 6.11 Power range
    13. 6.12 Review questions
  12. Chapter 7: Variable frequency operation of induction motors
    1. Abstract
    2. 7.1 Introduction
    3. 7.2 Variable frequency operation
    4. 7.3 Practical aspects of inverter-fed drives
    5. 7.4 Effect of inverter on the induction motor
    6. 7.5 Utility supply effects
    7. 7.6 Inverter and motor protection
    8. 7.7 Review questions
  13. Chapter 8: Field oriented control of induction motors
    1. Abstract
    2. 8.1 Introduction
    3. 8.2 Essential preliminaries
    4. 8.3 Circuit modelling of the induction motor
    5. 8.4 Steady-state torque under current-fed conditions
    6. 8.5 Dynamic torque control
    7. 8.6 Implementation of field-oriented control
    8. 8.7 Direct torque control
    9. 8.8 Review questions
  14. Chapter 9: Synchronous, permanent magnet and reluctance motors and drives
    1. Abstract
    2. 9.1 Introduction
    3. 9.2 Synchronous motor types
    4. 9.3 Torque production
    5. 9.4 Utility-fed synchronous motors
    6. 9.5 Variable frequency operation of synchronous motors
    7. 9.6 Synchronous motor drives
    8. 9.7 Performance of permanent magnet motors
    9. 9.8 Emerging developments in permanent magnet motors
    10. 9.9 Review questions
  15. Chapter 10: Stepping and switched reluctance motors
    1. Abstract
    2. 10.1 Introduction
    3. 10.2 Stepping motors
    4. 10.3 Principle of motor operation
    5. 10.4 Motor characteristics
    6. 10.5 Steady-state characteristics—Ideal (constant-current) drive
    7. 10.6 Drive circuits and pull-out torque–speed curves
    8. 10.7 Transient performance
    9. 10.8 Switched reluctance motor drives
    10. 10.9 Review questions
  16. Chapter 11: Motor/drive selection
    1. Abstract
    2. 11.1 Introduction
    3. 11.2 Power ratings and capabilities
    4. 11.3 Drive characteristics
    5. 11.4 Load requirements—torque-speed characteristics
    6. 11.5 General application considerations
    7. 11.6 Review questions
  17. Appendix: Solutions to review questions
    1. Chapter 1
    2. Chapter 2
    3. Chapter 3
    4. Chapter 4
    5. Chapter 5
    6. Chapter 6
    7. Chapter 7
    8. Chapter 8
    9. Chapter 9
    10. Chapter 10
    11. Chapter 11
  18. Further reading
    1. A General motors and drives books – Delving a little deeper
    2. B Control and modelling
    3. C Practical aspects of design and application of motors and drives
    4. D Reliability
    5. E Synchronous reluctance and permanent magnet motors
    6. F Energy efficient electric motors
    7. G Power semiconductor devices
  19. Index
44.200.77.92