Modern and intuitive way of teaching space vector calculus and PWM in an undergraduate course

Abstract

In the field of power electronics and electrical machines space vector theory is of paramount importance for a detailed understanding of three-phase systems. However, students frequently do have problems with getting a clear picture of all advantages of the space vector concept and, therefore, often do consider space vector calculus to be of limited practical applicability. A part of the new web-based educational software iPES (Interactive Power Electronics Seminar) focusing on space vector calculus could provide a solution to this problem. Four representative Java applets dealing with the main aspects of space vector calculus are described in detail in this paper. The applets do allow the student to explore the basic rules of space vector transformation in an interactive and animated way. Furthermore, the student does get experience with the application of space vector calculus for analysing a three-phase PWM converter, and finally has to manage space-vector-based current control of a three-phase PWM converter system. All applets are easy to use and do provide a smooth introduction into the topic for beginners.