Zero Sequence Modulation (ZSM) Tutorial

Abstract

This tutorial discusses three-phase modulation methods for driving motors. It covers some basic background on Pulse Width Modulation (PWM) and Space Vector Modulation (SVM) before moving on to the topic of Zero Sequence Modulation (ZSM). The tutorial is filled with visual aids including an interactive animation showing how zero sequence modulation works.

Tutorial Contents

1. Three-Phase Pulse-Width Modulation, Space Vector Modulation, Zero-Sequence Voltage, and That Darned Hexagon
2. What is Pulse-Width Modulation (PWM), anyway?
3. Space Vector Modulation
4. Zero Sequence Modulation
   • Visualizing Different Alternatives for ZSM
   • ZSM Viewer
   • Which Type of ZSM is the Best?
5. References on Three-Phase PWM and Space Vector Modulation for Further Reading