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Distance protection using a wavelet-based filtering algorithm
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DOI：10.1016/j.epsr.2009.08.012.png)
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This paper presents a novel filter design technique based on the maximal overlap discrete wavelet transform (MODWT). Time and frequency response of the designed filters are compared to the ones of traditional discrete Fourier transform (DFT) based filters. The obtained results show improvements on response speed when comparing to full cycle traditional filters and improvements on frequency response when compared to half cycle traditional filters. According to these characteristics, the designed filter may be used in secure high-speed distance protection, since it provides fast relay operating times, without compromising their frequency response. (C) 2009 Elsevier B.V. All rights reserved.
Keyword:
High-speed distance protection
Wavelet transform
Phasor estimation
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4.2
论文数:
1.2W
被引数:
2.2W
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