ELL302
| ELL302 | |
|---|---|
| power Electronics | |
| Credits | 3 |
| Structure | 3-0-0 |
| Pre-requisites | ELL231 (EE3) / ELL211 (EE1) |
| Overlaps | |
ELL302 : power Electronics
[edit]Introduction to Power Electronics devices and protection: Thyristor family devices, principle of operation, IGBT operation, principles and ratings. Snubber designs, selection and protection, Firing circuits. AC-DC converters: uncontrolled, semi-controlled, fully controlled and dual converters in single-phase and three-phase configurations, design, phase control, harmonic analysis, firing circuits and their designs. Improved power quality AC-DC converters. Choppers: Introduction to dc-dc conversion, various topologies, buck, boost, buck-boost converters, High frequency isolated dc-dc converters: design problems, PWM control and operation. Inverters: Basics of dc to ac conversion, inverter circuit configurations and principle of operation, VSI and CSI, single and three-phase configurations, Square wave and sinusoidal PWM control methods and harmonic control. Design problems. AC voltage controllers: Introduction to ac to ac conversion, single- phase and three-phase ac voltage controller circuit configurations, applications, advantages, harmonic analysis, control, design problems. Cyclo-converters: single-phase to single-phase, three-phase to single- phase, three-phase to three-phase and single-phase to three-phase circuit configurations thyristors and triacs.