Zero Sequence Modulation for Three Phase Motors

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

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Course Overview (Show All)

Introduction

Three-Phase Pulse-Width Modulation, Space Vector Modulation, Zero-Sequence Voltage, and That Darned Hexagon

Pulse Width Modulation (PWM)

Space Vector Modulation

Zero Sequence Modulation

Visualizing Different Alternatives for ZSM

Types of Zero-Sequence Modulation

Top Clamp (also called "flat-top")

Bottom Clamp (also called "flat-bottom")

Top and Bottom Clamp

ZSM Viewer

Which type of ZSM is the best?