Harmonic component estimation through DFSWT for active power filter applications

Nowadays, power quality monitoring is a very important subject. The growing utilization of nonlinear loads such as rectifiers considerably distorts the shape of current and voltage signals affecting the power quality of the grid. Therefore, harmonic estimation and compensation are important tasks fo...

Full description

Saved in:
Bibliographic Details
Published inIECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society pp. 810 - 815
Main Authors Cabal-Yepez, E., Miranda-Vidales, H., Garcia-Perez, A., Lozano-Garcia, J. M., Alvarez-Salas, R., Martinez-Herrera, A. L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2013
Subjects
Active filters
Basic arithmetic operations
DFSWT
Estimation
Frequency estimation
Harmonic analysis
Harmonic distortion
Nonlinear loads
Power harmonic filters
Rectifiers
Online AccessGet full text

Cover

More Information
Summary:Nowadays, power quality monitoring is a very important subject. The growing utilization of nonlinear loads such as rectifiers considerably distorts the shape of current and voltage signals affecting the power quality of the grid. Therefore, harmonic estimation and compensation are important tasks for improving power quality indexes in electric systems. In this work, the feasibility of using the discrete Fourier square-wave transform (DFSWT) as a fast processing engine, with low power consumption, for online harmonic component estimation is assessed. From obtained results, the current harmonic components demanded by the nonlinear loads were properly identified through DFSWT and compensated utilizing a shunt active power filter (S-APF) in all treated cases, obtaining a well-shaped sinusoidal current signal in the grid front-end.
ISSN:1553-572X
DOI:10.1109/IECON.2013.6699238