전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제57권8호
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  • Pages.1470-1477
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  • 2008
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

웨이블렛 변환을 이용한 비선형 부하 전원선에서의 직렬 아크고장 신호 분석

Analysis of Series Arc-Fault Signals Using Wavelet Transform From Non-linear Loads

  • 발행 : 2008.08.01
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초록

In this paper, a new detection method of series arc-fault signals occurring at the wiring of home appliances is proposed. The discrete wavelet transform was used for the numerical analysis of the variation rate in peak, RMS, noise energy, shoulder of the arc-fault current wave. As a results, the arc distinction threshold value of these variation rates was about 0.1 in most cases. The arc-fault current of the loads with the active PFC circuit showed a high rate of variation in noise energy and shoulder, but arc-fault current of the loads without the active PFC circuit showed a high rate of variation in peak and RMS. The arc fault current in resistive loads showed a high rate of variation in shoulder.

키워드

참고문헌

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