Web Based Teaching of Pulse Width Modulation Methods for Three-Phase Two-Level Converters

In the paper a Web based teaching of Pulse Width Modulaiton (PWM) methods for three-phase bridge converters is presented. In the first part the basic methods of PWM: carrier based sinusoidal (CB-SPWM), carrier based PWM with zero sequence signal (CB-ZSS-PWM), and space vector modulation (SVM) are discussed. Special emphasis is given to relations between CB-ZSS-PWM and SVM. In the second part selected applets which are developed in the Institute of Control and Industrial Electronics, Warsaw University of Technology for individual teaching of PWM methods are briefly described www.isep.pw.edu.pl/icg/vlab).