Candidates can get Best Power Electronics Devices and Circuits Books 2018 also a Top List of Main Study Materials for 2017-2018 entrance exam in India.
- Power Electronics: Devices and Circuits
by Jagannathan V
INTRODUCTION TO THYRISTER FAMILY:
Construction, operation and characteristics of SCR, Diac, Triac, SUS, SBS, RCT, LASCR, SITS, SITH, GTOs, IGBT , MCT etc. Two transistor analogy of SCR. Turn On and Commutation methods of SCR. Triggering circuits of SCR. UJT relaxation oscillator and PUT. Series and parallel operation of Thyristor. Thyristor protection.
PHASE CONTROLLED RECTIFIERS:
Single phase, half wave, Full wave, half controlled bridge and Full controlled bridge rectifiers with resistive and inductive loads. Effect of freewheeling diodes. Three phase controlled rectifiers.
Thyristor inverter classification, Voltage and current source inverters, Series, Parallel and Bridge Inverters. The McMurray and McMurrayBedford inverters. PWM inverters, Three phase inverters.
Principle of chopper operation, control strategies, Step-Up, Stepdown and Step-Up/Down chopper. Type-A, Type-B, Type-C, Type-D and Type-E chopper. Voltage and current commutated chopper. Jones, Morgan and AC choppers.
Basic principle of operation. Single phase to single phase, Three phase to single phase Cycloconverter. Three phase to three phase cycloconverter.
CONTROL OF DC DRIVES:
Introduction, Basic machine equations. Braking modes. Single phase separately excited drives. Single phase series DC motor drives. DC chopper drives. Closed loop control of DC drives. PLL control of DC drives. Microcomputer control of DC drives.
CONTROL OF AC DRIVES:
Basic principle of operation. Torque-speed characteristic of induction motor. Speed control of induction motor. Stator voltage control. Variable frequency control. Rotor resistance control. Slip power recovery scheme.
APPLICATION OF THYRISTOR:
Over voltage protection, Zero voltage switch. SMPS, Online and Off line UPS, Induction heating, Dielectric heating, Switch mode welding, Battery charger, Static circuit breakers.