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| Preface | |
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| Introduction to Electric Drive Systems | |
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| History | |
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| What Is an Electric-Motor Drive? | |
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| Factors Responsible for the Growth of Electric Drives | |
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| Typical Applications of Electric Drives | |
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| The Multi-Disciplinary Nature of Drive Systems | |
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| Structure of the Textbook | |
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| References | |
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| Problems | |
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| Understanding Mechanical System Requirements for Electric Drives | |
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| Introduction | |
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| Systems with Linear Motion | |
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| Rotating Systems | |
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| Friction | |
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| Torsional Resonances | |
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| Electrical Analogy | |
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| Coupling Mechanisms | |
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| Types of Loads | |
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| Four-Quadrant Operation | |
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| Steady State and Dynamic Operations | |
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| References | |
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| Problems | |
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| Review of Basic Electric Circuits | |
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| Introduction | |
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| Phasor Representation in Sinusoidal Steady State | |
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| Three-Phase Circuits | |
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| Reference | |
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| Problems | |
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| Basic Understanding of Switch-Mode Power Electronic Converters in Electric Drives | |
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| Introduction | |
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| Overview of Power Processing Units (PPUs) | |
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| Converters for DC Motor Drives �2Vd , vo , Vd� | |
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| Synthesis of Low-Frequency AC | |
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| Three-Phase Inverters | |
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| Power Semiconductor Devices | |
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| References | |
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| Problems | |
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| Magnetic Circuits | |
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| Introduction | |
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| Magnetic Field Produced by Current-Carrying Conductors | |
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| Flux Density B and the Flux f | |
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| Magnetic Structures with Air Gaps | |
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| Inductances | |
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| Faraday�s Law: Induced Voltage in a Coil due to Time-Rate of Change of Flux Linkage | |
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| Leakage and Magnetizing Inductances | |
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| Transformers | |
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| Permanent Magnets | |
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| Basic Principles of Electromechanical Energy Conversion | |
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| Introduction | |
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| Basic Structure | |
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| Production of Magnetic Field | |
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| Basic Principles of Operation | |
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| Application of the Basic Principles | |
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| Energy Conversion | |
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| Power Losses and Energy Efficiency | |
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| Machine Ratings | |
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| DC-Motor Drives and Electronicallycommutated Motor (ECM) Drives | |
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| Introduction | |
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| The Structure of DC Machines | |
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| Operating Principles of DC Machines | |
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| DC-Machine Equivalent Circuit | |
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| Various Operating Modes in DC-Motor Drives | |
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| Flux Weakening in Wound-Field Machines | |
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| Power-Processing Units in DC Drives | |
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| Electronically-Commutated Motor (ECM) Drives | |
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| Designing Feedback Controllers for Motor Drives | |
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| Introduction | |
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| Control Objectives | |
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| Cascade Control Structure | |
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| Steps in Designing the Feedback Controller | |
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| System Representation for Small-Signal Analysis | |
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| Controller Design | |
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| Example of a Controller Design | |
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| The Role of Feed-Forward | |
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| Effects of Limits | |
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| Anti-Windup (Non-Windup) Integration | |
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| Introduction to AC Machines and Space Vectors | |
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| Introduction | |
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| Sinusoidally-Distributed Stator Windings | |
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| The Use of Space Vectors to Represent Sinusoidal Field Distributions in the Air Gap | |
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| Space-Vector Representation of Combined Terminal Currents and Voltages | |
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| Balanced Sinusoidal Steady-State Excitation (Rotor Open-Circuited) | |
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| Sinusoidal Permanent Magnet AC (PMAC) Drives, LCI-Synchronous Motor Drives, and Synchronous Generators | |
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| Introduction | |
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| The Basic Structure of Permanent-Magnet AC (PMAC) Machines | |
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| Principle of Operation | |
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| The Controller and the Power-Processing Unit (PPU) | |
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| Load-Commutated-Inverter (LCI) Supplied Synchronous Motor Drives | |
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| Synchronous Generators | |
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| Induction Motors: Balanced, Sinusoidal Steady State Operation | |
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| Introduction | |
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| The Structure of Three-Phase, Squirrel-Cage Induction Motors | |
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| The Principles of Induction Motor Operation | |
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| Tests to Obtain the Parameters of the Per-Phase Equivalent Circuit | |
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| Induction Motor Characteristics at Rated Voltages in Magnitude and Frequency | |
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| Induction Motors of Nema Design A, B, C, and D | |
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| Line Start | |
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| Reduced Voltage Starting (�soft start�) of Induction Motors | |
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| Energy-Savings in Lightly-Loaded Machines | |
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| Doubly-Fed Induction Generators (DFIG) in Wind Turbines | |
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| Induction-Motor Drives: Speed Control | |
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| Introduction | |
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| Conditions for Efficient Speed Control Over a Wide Range | |
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| Applied Voltage Amplitudes to Keep ^ Bms 5 ^ Bms;rated | |
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| Starting Considerations in Drives | |
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| Capability to Operate below and above the Rated Speed | |
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| Induction-Generator Drives | |
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| Speed Control of Induction-Motor Drives | |
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| Pulse-Width-Modulated Power-Processing Unit | |
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| Reduction of ^ Bms at Light Loads | |
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| Reluctance Drives: Stepper-Motor and Switched-Reluctance Drives | |
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| Introduction | |
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| The Operating Principle of Reluctance Motors | |
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| Stepper-Motor Drives | |
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| Switched-Reluctance Motor Drives | |
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| Energy Efficiency of Electric Drives and Inverter-Motor Interactions | |
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| Introduction | |
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| The Definition of Energy Efficiency in Electric Drives | |
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| The Energy Efficiency of Induction Motors with Sinusoidal Excitation | |
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| The Effects of Switching-Frequency Harmonics on Motor Losses | |
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| The Energy Efficiencies of Power-Processing Units | |
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| Energy Efficiencies of Electric Drives | |
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| The Economics of Energy Savings by Premium-Efficiency Electric Motors and Electric Drives | |
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| The Deleterious Effects of The PWM-Inverter Voltage Waveform on Motor Life | |
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| Benefits of Using Variable-Speed Drives | |