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The Wavelet-Based Filtering Method as an Alternative to k-Factor Filtering for High-Voltage Impulse Signals

  • Research Article - Electrical Engineering
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Abstract

This paper deals with a new method of evaluating lightning impulse voltage parameters. For this purpose, three different types of impulse signals were used for analysis. The main point of the study focuses on the k-factor and wavelet transform methods to attenuate oscillations and overshoots that occur in impulse voltages. In this manner, as an alternative method to the k-factor approach, which is proposed in the IEC Standard 60060-1, the wavelet-based filtering approach is presented and its last approximation sub-band is described as de-noised data. Under the comparisons of the calculated signal parameters, the wavelet application was found to be a powerful method as much as the k-factor filtering in terms of a mathematical solution to the related problem.

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Authors and Affiliations

  1. Department of Electrical Engineering, Istanbul Technical University, 34469, Istanbul, Turkey

    Emel Onal, Kahraman Yumak & Serhat Seker

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  1. Emel Onal
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  2. Kahraman Yumak
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  3. Serhat Seker
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Correspondence to Kahraman Yumak.

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Onal, E., Yumak, K. & Seker, S. The Wavelet-Based Filtering Method as an Alternative to k-Factor Filtering for High-Voltage Impulse Signals. Arab J Sci Eng 43, 2843–2852 (2018). https://doi.org/10.1007/s13369-017-2853-z

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  • DOI: https://doi.org/10.1007/s13369-017-2853-z

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