| Title |
Development of Fault Location Method Using SWT and Travelling Wave on Underground Power Cable Systems |
| Authors |
정채균(Jung, Chae-Kyun) ; 이종범(Lee, Jong-Beom) |
| Keywords |
Fault location ; Noise cancellation method ; SWT ; Travelling wave ; Underground power cable systems |
| Abstract |
The fault location algorithm based on stationary wavelet transform was developed to locate the fault point more accurately. 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. In previous paper, noise cancellation technique based on the correlation of wavelet coefficients at multi-scales was introduced, and the efficiency was also proved in full. In this paper, fault section discrimination and fault location algorithm using noise cancellation technique were tested by ATP simulation on real power cable systems. From these results, the fault can be located even in very difficult and complicated situations such as different inception angle and fault resistance. |