EEC601 POWER ELECTRONICS
Module I: Power Semiconductor Devices (9 Lectures)
Diode, Thyristor, MOSFET, IGBT, GTO: constructional features, I-V Characteristics; Firing
circuit for thyristor; protection of thyristor and gate drive circuit, Turn on techniques, Voltage
and current commutation of a thyristor.
Module II: AC-DC Converters (9 Lectures)
Single-phase half-wave and full-wave rectifiers, Single-phase full-bridge thyristor rectifier
with R, R-L and R-L-E load; effect of source inductance, Three-phase full-bridge thyristor
rectifier with R, R-L and R-L-E load; freewheeling effect, power factor improvement.
Module III: DC-DC Buck and Boost Converter (9 Lectures)
Elementary chopper with an active switch and diode, concepts of duty ratio and average
voltage, power circuit of a buck converter, analysis and waveforms at steady state, duty ratio
control of output voltage.
Power circuit of a boost converter, analysis and waveforms at steady state, relation between
duty ratio and average output voltage.
Module IV: Single-Phase Voltage Source Inverter (9 Lectures)
Power circuit of single-phase voltage source inverter, switch states and instantaneous output
voltage, square wave operation of the inverter, concept of average voltage over a switching
cycle, sinusoidal pulse width modulation, modulation index and output voltage.
Module V: Three-Phase Voltage Source Inverter (9 Lectures)
Power circuit of a three-phase voltage source inverter, switch states, instantaneous output
voltages, average output voltages over a sub-cycle, 120- degree conduction, 180-degree
conduction, three-phase sinusoidal pulse width modulation
Text/References Books:
[1].M. H. Rashid, “Power electronics: circuits, devices, and applications”, Pearson Education
India, 2009.
[2].N. Mohan and T. M. Undeland, “Power Electronics: Converters, Applications and
Design”,
John Wiley & Sons, 2007.
[3].R. W. Erickson and D. Maksimovic, “Fundamentals of Power Electronics”, Springer
Science
&Business Media, 2007.
[4].L. Umanand, “Power Electronics: Essentials and Applications”, Wiley India, 2009.