Multi-resolution wavelet analysis for chopped impulse voltage measurements

Emel Onal*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıbilirkişi

Özet

In this study, an application of the wavelet transform based on the multi-resolution analysis (MRA) is aimed for evaluation of amplitude and time parameters of the chopped impulse voltage. In terms of the getting data set, chopped lightning impulse voltages with different chopping times are considered and MRA is applied to these data as different case studies. Hence, some characteristic properties are extracted from the impulse waveforms at some special frequency values. In this sense, frequency component of 33 MHz is found with a maximum peak value for each case before the chopping time and their appearing times for two cases are determined using the time-frequency analysis. Hence difference between the chopping time and occurring time of the maximum peak values at 33 MHz is calculated easily. Also, some physical interpretations of the frequency component of 33 MHz are defined through the circuit parameters of the measurement system. In usual application, the MRA can be presented as a powerful technique to extract the noise effects, which come from the different sources, in the high voltage measurements.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıProceedings of the 9th WSEAS International Conference on Signal Processing, Computational Geometry and Artificial Vision, ISCGAV '09
Sayfalar73-77
Sayfa sayısı5
Yayın durumuYayınlandı - 2009
Etkinlik9th WSEAS International Conference on Signal Processing, Computational Geometry and Artificial Vision, ISCGAV '09 - Moscow, Russian Federation
Süre: 20 Ağu 200922 Ağu 2009

Yayın serisi

AdıProceedings of the 9th WSEAS International Conference on Signal Processing, Computational Geometry and Artificial Vision, ISCGAV '09

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???event.eventtypes.event.conference???9th WSEAS International Conference on Signal Processing, Computational Geometry and Artificial Vision, ISCGAV '09
Ülke/BölgeRussian Federation
ŞehirMoscow
Periyot20/08/0922/08/09

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