Pulse Width Modulation in Power Electronics

✍ Scribed by Isaak Mayergoyz, Siddharth Tyagi

• Publisher: World Scientific Publishing Co
• Year: 2021
• Tongue: English
• Leaves: 419
• Category: Library

✦ Synopsis

This book provides a theoretical discussion of pulse width modulation (PWM) in power electronic inverters. Pulse width modulation is widely used for the frequency control of speed of ac motors, the design of uninterruptible power supplies (UPS) as well as the integration of renewable energy sources into existing power grid systems. PWM technique is based on approximation of sinusoidal waveforms by sequences (trains) of rectangular pulses whose widths are properly modulated. This width-modulation results in the suppression of low order harmonics at the expense of amplification of high order harmonics which are suppressed by energy-storage elements in load circuits. The discussion covers various PWM techniques with a focus on the optimal time-domain PWM techniques proposed by the authors.

✦ Table of Contents

Contents
Preface
1. Review of Some Basic Facts of Electric Circuit Theory
1.1 Review of Electric Circuit Theory
1.2 Phasor Analysis
1.3 Three-Phase Circuits
1.4 Fourier Series
1.5 Frequency-Domain Technique
1.6 Time-Domain Technique
2. Pulse Width Modulation in Single-Phase Inverters
2.1 Single-Phase Bridge Inverter
2.2 Sinusoidal Pulse Width Modulation and Its Fourier Analysis
2.3 Selective Harmonic Elimination and Chudnovsky Technique
2.4 Time Domain Analysis of Pulse Width Modulation in Single-Phase Inverters
2.5 Optimal Pulse Width Modulation
2.6 Optimal Pulse Width Modulation for L-RC circuit
3. Pulse Width Modulation in Three-Phase Inverters
3.1 Three-Phase Bridge Inverter
3.2 Fourier Analysis of Three-Phase Sinusoidal PWM
3.3 Per-phase Time-Domain Analysis of Three-Phase Inverters
3.4 Optimal Pulse Width Modulation in Three-Phase Inverters
3.5 AC-to-AC Converters
4. Magnetic Aspects
4.1 Hysteresis and Eddy Current Losses
4.2 Advanced Analysis of Eddy Current Losses for Circular Polarizations of Magnetic Fields
4.3 Perturbation Technique for Non-circular Polarization of Magnetic Fields
4.4 Eddy Currents in the Case of Linear Polarization of Magnetic Fields
4.5 On the Promising Use of Spintronics in Nanoscale Power Electronics
Bibliography
Index