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NPTEL

Pulse Width Modulation for Power Electronic Converters

NPTEL and Indian Institute of Science Bangalore via YouTube

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Overview

Instructor: Prof. G. Narayanan, Department of Electrical Engineering, IISc Bangalore.

This course deals with topics in pulse width modulated converters and applications: Converter topologies for AC/DC and DC/AC power conversion, an overview of applications of voltage source converters; pulsewidth modulation techniques for 1-phase and 3-phase bridge converters, sine-triangle PWM, bus clamping PWM, space vector based PWM, advanced PWM techniques; calculation of switching and conduction losses; compensation for dead time and DC voltage regulation; estimation of current ripple and torque ripple in inverter fed drives; overmodulation; extension of modulation methods to multilevel inverters.

Syllabus

Mod-01 Lec-01 Electronic switches.
Mod-01 Lec-02 DC -- DC converters.
Mod-01 Lec-03 DC -- AC converters.
Mod-01 Lec-04 Multilevel converters - I.
Mod-01 Lec-05 Multilevel converters - II.
Mod-02 Lec-06 Applications of voltage source converter -- I.
Mod-02 Lec-07 Applications of voltage source converter -- II.
Mod-02 Lec-08 Applications of voltage source converter -- III.
Mod-03 Lec-09 Purpose of PWM-I.
Mod-03 Lec-10 Purpose of PWM-II.
Mod-04 Lec-11 Low switching frequency PWM - I.
Mod-04 Lec-12 Low switching frequency PWM -- II.
Mod-04 Lec-13 Selective harmonic elimination.
Mod-04 Lec-14 Off-line optimized pulsewidth modulation.
Mod-05 Lec-15 Sine-triangle pulsewidth modulation.
Mod-05 Lec-16 Harmonic injection pulsewidth modulation.
Mod-05 Lec-17 Bus-clamping pulsewidth modulation.
Mod-05 Lec-18 Triangle-comparison based PWM for three-phase inverter.
Mod-06 Lec-19 Concept of space vector.
Mod-06 Lec-20 Conventional space vector PWM.
Mod-06 Lec-21 Space vector based bus-clamping PWM.
Mod-06 Lec-22 Space vector based advanced bus-clamping PWM.
Mod-07 Lec-23 Harmonic analysis of PWM techniques.
Mod-07 Lec-24 Analysis of RMS line current ripple using the notion of stator flux ripple.
Mod-07 Lec-25 Evaluation of RMS line current ripple using the notion of stator flux ripple.
Mod-07 Lec-26 Analysis and design of PWM techniques from line current ripple perspective.
Mod-08 Lec-27 Instantaneous and average dc link current in a voltage source inverter.
Mod-08 Lec-28 DC link current and DC capacitor current in a voltage source inverter.
Mod-09 Lec-29 Analysis of torque ripple in induction motor drives - I.
Mod-09 Lec-30 Analysis of torque ripple in induction motor drives - II.
Mod-10 Lec-31 Evaluation of conduction loss in three-phase inverter.
Mod-10 Lec-32 Evaluation of switching loss in three-phase inverter.
Mod-10 Lec-33 Design of PWM for reduced switching loss in three-phase inverter.
Mod-11 Lec-34 Effect of dead-time on inverter output voltage for continuous PWM schemes.
Mod-11 Lec-35 Effect of dead-time on inverter output voltage for bus-clamping PWM schemes.
Mod-12 Lec-36 Analysis of overmodulation in sine-triangle PWM from space vector perspective.
Mod-12 Lec-37 Overmodulation in space vector modulated inverter.
Mod-13 Lec-38 PWM for three-level neutral-point-clamped inverter -- I.
Mod-13 Lec-39 PWM for three-level neutral-point-clamped inverter - II.
Mod-13 Lec-40 PWM for three-level neutral-point-clamped inverter - III.

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