Structure, and operating characteristics of Power Diode, SCR, power BJT, MOSFET and IGBT, Switching characteristics, firing and protection circuits
AC-DC Converters: 2 pulse, 3 pulse and 6 pulse converters – performance parameters – effect of source impedance DC to DC converters: step down chopper – step up chopper – control strategies – classification – switched mode regulators – buck, boost, buck boost converter – Introduction to SMPS
DC to AC converters: Single phase and three phase voltage source inverters (120ᵒ &180ᵒ mode) –PWM techniques – Current source inverters – harmonic control – Introduction to UPS AC to AC Converters: Single phase AC voltage controllers, multistage control – single phasecyclo converters – Introduction to matrix converters
Introduction to Drives: Fundamentals of Drive dynamics – Basic Elements- Modes of operation –Characteristics of electrical and mechanical loads-Classes of duty DC Motor drives: Single phase and three phase converter fed D.C motor drive. Chopper fed drives, input filter design. Braking and speed reversal of DC motor drives using choppers
induction Motor Drives: V/f control, rotor resistance control-slip power recovery schemes – voltage source and current source inverter fed induction motor drives Synchronous Motor drives: Synchronous motor control – analysis with electronic commutation –concept of self-control – stator current control and marginal angle control
Reference Book:
Ion Boldea, Syed A. Nasar, “Electric Drivesâ€, CRC Press, New Delhi 2016 (Unit IV- V).
Text Book:
Bimbra, P.S., “Power Electronics†Khanna Publishers, New Delhi, 7 RevisedEdition, 2022 (Unit I-III). th
