Zero Sequence Modulation (ZSM) Tutorial

Last modified by Microchip on 2024/01/16 19:34

Vector diagram for motor control


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
  5. References on Three-Phase PWM and Space Vector Modulation for Further Reading