대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2006년도 제37회 하계학술대회 논문집 A
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- Pages.440-441
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- 2006
노이지 제거기법을 이용한 지중송전계통 고장점 추정
Fault Location Using Noise Cancellation Technique on Underground Power Cable Systems
- Jung, Chae-Kyun (Wonkwang University) ;
- Lee, Jong-Beom (Wonkwang University)
- 발행 : 2006.07.12
초록
The fault location algorithm based on wavelet transform was developed to locate the fault more accuracy after the operation of relay. The stationary wavelet transform(SWT) was introduced instead of conventional discrete wavelet transform(DWT) because SWT has redundancy properties which is more useful in noise signal processing. The algorithm was based on the correlation of wavelet coefficients at multi-scales. Fault location algorithm was tested by simulation on real power cable system. From these results, the fault can be located even in very difficult situations, such as at different inception angle and fault resistance.
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