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 phase cycloconverters – 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:
1.Ned Mohan, Tore. Undel, M., William. P. Robbins, “Power Electronics: Converters, Applications and Design” John Wiley & Sons, 3rd Edition, 2007. 2.Theodore Wildi, “Electrical Machines, Drives and Power Systems”, Pearson India, New Delhi, 6th Edition, 2013. 3.Krishnan, R., “Electric Motor Drives – Modeling, Analysis and Control”, PrenticeHall of India, 2015. 4.Bose, B.K., “Modern Power Electronics and A.C. Drives”, Academic Press, 2006
Text Book:
Bimbra, P.S., “Power Electronics” Khanna Publishers, New Delhi, 7 th Revised Edition, 2022 (Unit I-III). Ion Boldea, Syed A. Nasar, “Electric Drives”, CRC Press, New Delhi 2016 (Unit IVV).