04545nam a2200241Ia 4500 569 569 0002158 OSt 20190318133620.0 170602s9999 xx 000 0 und d 9788126529339 2016 Allied Informatics, Jaipur English BSDU BSDU 621.310 42 ELH El-Haware, Mohamed E Principles of Electric Machines : with Power electronic Applications 2nd Wiley India Pvt. Ltd. India New Delhi 2014,c2002 483 All machines have power requirements, and finding the right balance of economy and performance can be a challenge to engineers. Principles of Electric Machines with Power Electronic Applications provides a thorough grounding in the principles of electric machines and the closely related area of power electronics and adjustable speed drives. Designed for both students and professionals seeking a foundation in the fundamental structure of modern-day electric power systems from a technical perspective, this lucid, succinct guide has been completely revised and updated. Contents Chapter 1: Introduction. · Electric Machines. · Roots in Observation. · Beginnings. · Foundations of Electromagnetism. · The Dawn of Electrodynamics. · Early Electric Generators. · Early Electric Motors. · Alternating Current. · Power Electronics: Scope and A Brief History. · Structure of the Power System. · Outline of the Text. Chapter 2: Principles of Electromagnetism and Electromechanical Energy Conversion. · Magnetic-Field Laws. · Permeability and Magnetic-Field Intensity. · Magnetic Circuits. · Flux Linkages, Induced Voltages, Inductance, and Energy. · Hysteresis Loop. · Eddy-Current and Core Losses. · Energy Flow Approach. · Field Energy. · Multiply Excited Systems. · Reluctance Motors. · Doubly Excited Systems. · Salient-Pole Machines. · Round or Smooth Air-Gap Machines. · Machine-Type Classification. · P-Pole Machines. Chapter 3: Power Electronic Devices and Systems. · Power Semiconductor Devices. · Control Characteristics of Power Devices. · Power Transistors. · The Thyristors. · Power Electronic Systems. · Power Integrated Circuits and Smart Power. Chapter 4: Direct-Current Motors. • Construction Features. • Circuit Model of dc Generator. • Circuit Model of dc Motors. • dc Series Motors. • dc Shunt Motors. • Motor and Load Matching. • Conventional Speed Control of dc Motors. • Reversal of Direction of Rotation. • Starting dc Motors. • Adjustable Speed dc Motor Drives. • ac-dc Drives for dc Motors. • dc-dc Drives for dc Motors. Chapter 5: Transformers. • Ideal Transformers. • Transformer Models. • Transformer Performance Measures. • Single-Phase Connections. • Three-Winding Transformers. • Three-Phase Systems and Transformer Connections. • Autotransformers. Chapter 6: Induction Motors and Their Control. • MMF Waves and the Rotating Magnetic Field. • Slip. • Equivalent Circuits. • Simplified Equivalent Circuits. • Torque Characteristics. • Some Useful Relations. • Internal Mechanical Power. • Effects of Rotor Impedance. • Classification of Induction Motors. • Starting Induction Motors. • Conventional Speed Control of Induction Motors. • Adjustable Speed Drives: General Considerations. • Variable-Voltage - Constant-Frequency Drives. • Variable-Voltage - Variable-Frequency Drives. • dc-Link-Converter Drives. • Voltage-Fed Inverter Drives. • Current-Fed Inverter Drives. • Cycloconverter Drives. • Regulation of Slip Power. Chapter 7: Synchronous Machines. • Round-Rotor Machines: Equivalent Circuit. • Armature Reaction. • Principal Steady-State Characteristics. • Power Angle Characteristics and the Infinite-Bus Concept. • Synchronous-Motor Operation. • Salient-Pole Machines. Chapter 8: Fractional-Horsepower Alternating Current Motors. • Rotating Magnetic Fields in Single-Phase Induction Motors. • Equivalent Circuits for Single-Phase Induction Motors. • Power and Torque Relations. • Starting Single-Phase Induction Motors. Bibliography. Index. Electrical ddc BK 0 0 ddc 0 0 BSDU BSDU 2016-12-11 679.00 1 621.310 42 ELH 002158 2022-09-08 00:00:00 2022-08-24 679.00 2017-06-02 BK 0 0 ddc 0 0 BSDU BSDU 2016-12-11 679.00 0 621.310 42 ELH 002159 2020-02-12 00:00:00 679.00 2017-06-02 BK 0 0 ddc 0 1 RB BSDU BSDU 2016-12-11 679.00 0 621.310 42 ELH 002160 2020-02-12 00:00:00 679.00 2017-06-02 BK 0 0 ddc 0 0 BSDU BSDU 2016-12-11 679.00 0 621.310 42 ELH 002161 2020-02-12 00:00:00 679.00 2017-06-02 BK 0 0 ddc 0 0 BSDU BSDU 2016-12-11 679.00 0 621.310 42 ELH 002162 2020-02-12 00:00:00 679.00 2017-06-02 BK