Morphological Filter to Remove Harmonics of Electrical Signal

PINOS, BRIAN; LARREA, RAFAEL; MORALES, JOHN

Conferencia; 2017 IEEE Second Ecuador Technical Chapters Meeting (ETCM); 2017

Currently mathematical morphology is used in theanalysis of electric signals due to the clear understanding of itsprocesses and results. Traditional filters use elements based onelectronic power to eliminate harmonics. The aim of this paper isto describe the use of this method for filtering harmonic signalsusing four basic operations of mathematical morphology such as:dilatation, erosion, opening and closing, including necessarysimulations and analysis to confirm its correct functioning. Thepresented work is applied to real signals measured in thelaboratory of electric machines at Universidad PolitécnicaSalesiana Cuenca. Results show the effectiveness of the algorithmin removing harmonics from the input signal in order to get asignal as similar as possible to the fundamental component