A new approach for measuring RMS value and phase angle of fundamental harmonic based on Wavelet Packet Transform |
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Authors: | F Vatansever A Ozdemir |
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Affiliation: | 1. Technical Education Faculty of Sakarya University, 54187 Esentepe, Sakarya, Turkey;2. Electrical–Electronics Department of Sakarya University, 54187 Esentepe, Sakarya, Turkey |
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Abstract: | Traditional ways of calculating/measuring harmonics in power systems have been based on Fourier Transform and algorithms, such as Fast Fourier Transform and Goertzel that implements it. In this study, a novel approach based on Wavelet Packet Transform is presented to measure Root-Mean-Square (RMS) value and phase angle of the fundamental harmonic. To this end, analytical expressions were derived and using a Graphical User Interface (GUI) designed and experimental works the validity of analytical expressions was demonstrated. |
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Keywords: | Fundamental harmonic Root-Mean-Square value Phase angle of harmonics Discrete Wavelet Packet Transform Hilbert transform |
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