Three-Phase Distortion Analysis based on Space-Vector Locus Diagrams-Reference-Cited by-同舟云学术

Three-Phase Distortion Analysis based on Space-Vector Locus Diagrams

Published:2023-12-31 Issue: Volume:18 Page:467-473
ISSN:2224-350X
Container-title:WSEAS TRANSACTIONS ON POWER SYSTEMS
language:en
Short-container-title:

Author:

Bellan Diego¹

Affiliation:

1. Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, ITALY

Abstract

This work deals with the use of the space vector concept to characterize the harmonic content of a three-phase voltage/current. It is shown that the shape of the trajectory of the space vector on the complex plane (i.e., the locus diagram) provides information about its harmonic content. In particular, it is shown that each harmonic contributes to the locus diagram with a number of lobes depending on the relative angular frequency between the harmonic and the fundamental component. To this aim, the different contributions of positive-sequence and negative-sequence harmonics is explained and put into evidence with specific examples. The expressions for the magnitude and phase of the space vector as functions of the harmonics are derived analytically. Numerical examples are provided to show how the locus diagram can represent a three-phase quantity with positive-sequence and negative-sequence harmonics.

Publisher

World Scientific and Engineering Academy and Society (WSEAS)

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