466 Pages 146 B/W Illustrations
    by CRC Press

    The two major broad applications of electrical energy are information processing and energy processing. Hence, it is no wonder that electric machines have occupied a large and revered space in the field of electrical engineering. Such an important topic requires a careful approach, and Charles A. Gross' Electric Machines offers the most balanced, application-oriented, and modern perspective on electromagnetic machines available.

    Written in a style that is both accessible and authoritative, this book explores all aspects of electromagnetic-mechanical (EM) machines. Rather than viewing the EM machine in isolation, the author treats the machine as part of an integrated system of source, controller, motor, and load. The discussion progresses systematically through basic machine physics and principles of operation to real-world applications and relevant control issues for each type of machine presented. Coverage ranges from DC, induction, and synchronous machines to specialized machines such as transformers, translational machines, and microelectromechanical systems (MEMS). Stimulating example applications include electric vehicles, wind energy, and vertical transportation. Numerous example problems illustrate and reinforce the concepts discussed.

    Along with appendices filled with unit conversions and background material, Electric Machines is a succinct, in-depth, and complete guide to understanding electric machines for novel applications.

    BASIC ELECTROMAGNETIC CONCEPTS
    Basic Magnetic Concepts
    Magnetically Linear Systems: Magnetic Circuits
    Voltage, Current, and Magnetic Field Interactions
    Magnetic Properties of Materials
    Nonlinear Magnetic Circuit Analysis
    Permanent Magnets
    Superconducting Magnets
    The Fundamental Translational EM Machine
    The Fundamental Rotational EM Machine
    Multiwinding EM Systems
    Leakage Flux
    The Concept of Ratings in EM Systems
    Summary
    Problems
    TRANSFORMERS
    The Ideal n-Winding Transformer
    Transformer Ratings and Per-Unit Scaling
    The Nonideal Three-Winding Transformer
    The Nonideal Two-Winding Transformer
    Transformer Efficiency and Voltage Regulation
    Practical Considerations
    The Autotransformer
    Operation of Transformers in Three-Phase Environments
    Sequence Circuit Models for Three-Phase Transformer Analysis
    Harmonics in Transformers
    Summary
    Problems
    BASIC MECHANICAL CONSIDERATIONS
    Some General Perspectives
    Efficiency
    Load Torque-Speed Characteristics
    Mass Polar Moment of Inertia
    Gearing
    Operating Modes
    Translational Systems
    A Comprehensive Example: The Elevator
    Prime Movers
    Summary
    Problems
    THE POLYPHASE INDUCTION MACHINE: BALANCED OPERATION
    Machine Construction
    Stator Winding Layout
    The Rotating Magnetic Field
    Stator-Rotor Interactions
    Performance Analysis using the Equivalent Circuit
    Equivalent Circuit Constants from Tests
    Operating Modes: Motor, Generator, and Braking
    Dynamic Performance
    Cage Rotor Machines
    Thermal Considerations
    Summary
    Problems
    CONTROL OF AC MOTORS
    Control of the Load Torque-Speed Characteristic
    Control of the Motor Torque-speed Characteristic
    Controlling Voltage and Frequency
    Power Semiconductor Switching Components
    The Single-Phase Inverter
    The Three-Phase Inverter
    AC to DC Conversion: Rectifiers
    Three-Phase Rectifiers
    Controlled Rectifiers
    AC Motor Drives
    AC Motor Drives: Dynamic Performance
    Four-Quadrant Performance
    The Cycloconverter
    Summary
    Problems
    THE POLYPHASE INDUCTION MACHINE: UNBALANCED OPERATION
    Unbalanced Operation
    Single Phasing
    Operation on Nonsinusoidal Voltage
    The Two-Phase Induction Motor
    The Single-Phase Induction Motor
    The Single-Phase Induction Motor Operating on One Winding
    Equivalent Circuit Constants from Tests
    Dynamic Performance
    Summary
    Problems
    THE POLYPHASE SYNCHRONOUS MACHINE: BALANCED OPERATION
    Machine Construction
    Evolution of the Machine Model from the Induction Machine
    Interaction of the Rotor and Stator Circuits: The Magnetization Characteristic
    The Nonsalient Pole Synchronous Machine: Generator Operation
    The Nonsalient Pole Synchronous Machine: Motor Operation
    The Salient Pole Synchronous Machine
    Synchronous Machine Constants from Tests
    The Synchronous Generator Operating in a Utility Environment
    Permanent Magnetic Synchronous Machines
    The Polyphase Synchronous-Reluctance Machine
    The Brushless DC Motor
    Summary
    Problems
    THE POLYPHASE SYNCHRONOUS MACHINE: THE GENERAL COUPLED CIRCUIT MODEL
    The General Coupled Circuit Model of the Synchronous Machine
    The 0dq Transformation
    Powers and Torques in the 0dqFDQ Model
    The 0dqFDQ Model Using Generator Sign Conventions
    Balanced Three-Phase Constant Speed Generator Performance
    Per-Unit Scaling as applied to Synchronous Machines
    The Tee Equivalent Circuits
    0dqFDQU Constants Derived from Manufacturer's Data
    0dqFDQU Model Performance
    Summary
    Problems
    THE DC MACHINE
    Machine Construction
    Generation of DC Voltage
    The DC Machine Model: Generator Operation
    The DC Machine Model: Motor Operation
    Speed Control of DC Motors
    DC Machine Constants from Tests
    DC Motor Drives: Half-Wave Converters
    DC Motor Drives: Full-Wave Converters
    Four-Quadrant Performance
    DC Motor Dynamic Performance
    An Elevator Application
    A More General DC Machine Model
    Summary
    Problems
    TRANSLATIONAL ELECTROMECHANICAL MACHINES
    Linear Induction Machine Construction
    Linear Induction Machine Modeling: The Equivalent Circuit
    The High-Speed Rail Application
    Linear Synchronous Machine Construction
    Linear Synchronous Machine Nonsalient Pole Model
    Linear Electromechanical Machine Applications in Elevators
    Summary
    Problems
    SPECIAL PURPOSE MACHINES AND SENSORS
    The Universal Motor
    The Shaded Pole Motor
    The Hysteresis Motor
    The Stepper Motor
    Encoders
    Resolvers
    Microelectromechanical Systems
    Summary
    Problems
    EPILOGUE
    REFERENCES IN ELECTRIC MACHINES AND TRANSFORMERS
    APPENDIX A: UNITS AND CONVERSION FACTORS
    APPENDIX B: A REVIEW OF ELECTRICAL CIRCUIT CONCEPTS
    DC Circuit Concepts
    AC Circuit Concepts
    Balanced Three-Phase AC Circuit Concepts
    Symmetrical Components
    APPENDIX C: HARMONIC CONCEPTS
    Basic Concepts
    Coefficient Calculations
    Rms (Effective) Values
    Symmetries
    Spectral Plots
    Response of Linear Circuits to Nonsinusoidal Excitation
    INDEX

    Biography

    Charles A. Gross

    "Excellent bibliography . . . Summing Up: Recommended."

    – P. L. Enrici, University of Minnesota- Duluth, in Choice: Current Reviews for Academic Libraries, Jan 2008, Vol. 45, No. 5