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Encouraged by the response to the first edition and to keep pace with recent developments, Fundamentals of Electrical Drives, Second Edition incorporates greater details on semi-conductor controlled drives, includes coverage of permanent magnet AC motor drives and switched reluctance motor drives, and highlights new trends in drive technology.
Contents were chosen to satisfy the changing needs of the industry and provide the appropriate coverage of modern and conventional drives. With the large number of examples, problems, and solutions provided, Fundamentals of Electrical Drives, Second Edition will continue to be a useful reference for practicing engineers and for those preparing for Engineering Service Examinations.
ELECTRICAL DRIVES-AN INTRODUCTION Electrical Drives Advantages of Electrical Drives Parts of Electrical Drives Choice of Electrical Drives Status of dc and ac Drives
DYNAMICS OF ELECTRICAL DRIVE Fundamental Torque Equations Speed Torque Conventions and Multiquadrant Operation Equivalent Values of Drive Parameters Components of Load Torques Nature and Classification of Load Torques Calculation of Time and Energy-Loss in Transient Operations Steady State Stability Load Equalisation
CONTROL OF ELECTRICAL DRIVES Modes of Operation Speed Control and Drive Classifications Closed-Loop Control of Drives
SELECTION OF MOTOR POWER RATING Thermal Model of Motor for Heating and Cooling Classes of Motor Duty Determination of Motor Rating
dc MOTOR DRIVES dc Motors and their Performance Starting Braking Transient Analysis Speed Control Methods of Armature Voltage Control Ward Leonard Drives Transformer and Uncontrolled Rectifier Control Controlled Rectifier Fed dc Drives Single-Phase Fully-Controlled Rectifier Control of dc Separately Excited Motor Three-Phase Fully-Controlled Rectifier Control of dc Separately Excited Motor Three-Phase Half-Controlled Rectifier Control of dc Separately Excited Motor Multiquadrant Operation of dc Separately Excited Motor Fed from Fully-Controlled Rectifier Rectifier Control of dc Series Motor Control of Fractional hp Motors Supply Harmonics, Power Factor, and Ripple in Motor Current Chopper-Controlled dc Drives Chopper Control of Separately Excited dc Motors Chopper Control of Series Motor Source Current Harmonics in Choppers Converter Ratings and Closed-Loop Control
INDUCTION MOTOR DRIVES Three-Phase Induction Motors Operation with Unbalanced Source Voltages and Single Phasing Operation with Unbalanced Rotor Impedances Analysis of Induction Motor Fed from Non-Sinusoidal Voltage Supply Starting Braking Transient Analysis Speed Control Pole Changing Pole Amplitude Modulation Stator Voltage Control Variable Frequency Control from Voltage Sources Voltage Source Inverter (VSI) Control Cycloconverter Control Closed-Loop Speed Control and Converter Rating for VSI and Cycloconverter Induction Motor Drives Variable Frequency Control from a Current Source Current Source Inverter Control Current Regulated Voltage Source Inverter Control Eddy Current Drives Rotor Resistance Control Slip Power Recovery Variable Speed Constant Frequency Generation Single-Phase Induction Motors Starting Methods and Types of Single-Phase Induction Motors Braking of Single-Phase Induction Motors Speed Control of Single-Phase Induction Motors Linear Induction Motor and its Control
SYNCHRONOUS MOTOR AND BRUSHLESS dc MOTOR DRIVES Synchronous Motors Operation from Fixed Frequency Supply Synchronous Motor Variable Speed Drives Variable Frequency Control of Multiple Synchronous Motors Self-Controlled Synchronous Motor Drive Employing Load Commutated Thyristor Inverter Starting Large Synchronous Motor Drive Employing a Cycloconverter Permanent Magnet ac Motor Drives Sinusoidal PMAC Motor Drives Brushless dc (or Trapezoidal PMAC) Motor Drives
STEPPER MOTOR AND SWITCHED RELUCTANCE MOTOR DRIVES Stepper Switched (or Variable) Reluctance Motor
SOLAR AND BATTERY POWERED DRIVES Solar (or Photovoltaic) Panels Motors Suitable for Pump Drives Solar Powered Pump Drives Battery Powered Vehicles Solar-Powered Electrical Vehicles and Boats
TRACTION DRIVES Electric Traction Services Nature of Traction Load Main Line and Suburban Train Configuration Braking Power Factor and Harmonics Calculations of Traction Drive Rating and Energy Consumption Important Features of Traction Drives Traction Motors Traction Drives Conventional dc and ac Traction Drives Semiconductor Converter Controlled Drives The 25 k V ac Traction Using Semiconductor Converter Controlled dc Motors The dc Traction Using Semiconductor Converter Controlled dc Motors Polyphase ac Motors for Traction Drives The dc Traction Employing Polyphase ac Motors The ac Traction Employing Polyphase ac Motors Diesel Electric Traction
ENERGY CONSERVATION IN ELECTRICAL DRIVES Losses in Electrical Drive System Measures for Energy Conservation in Electrical Drives Use of Efficient Semiconductor Converters Use of Efficient Motors Use of Variable Speed Drives Energy Efficient Operation of Drives Improvement of Quality Supply Use of Single- to Three-Phase Semiconductor Converters in Rural Applications Regular and Preventive Maintenance of Motors, Transformers, and Coupled Equipment
ELECTRICAL DRIVE SYSTEMS AND COMPONENTS Electrical Drive Systems Components Used for Obtaining Signals for Interlocking and Sequencing Operations, and Protection
Bibliography and References Answers to Numerical Problems Index