Research of Power Cable Fault Location Based on Wavelet Transform
[1]LIAO Xiao-hui,LIANC Heng-na,DING Qian.Research of Power Cable Fault Location Based on Wavelet Transform[J].Journal of Zhengzhou University (Engineering Science),2013,34(03):94-97,120.[doi:10.3969/j.issn.1671-6833.2013.03.023]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 03
Page number:
94-97,120
Column:
Public date:
2013-05-31
- Title:
- Research of Power Cable Fault Location Based on Wavelet Transform
- CLC:
- TM743
- Abstract:
- With wide application of power cable in transmission and distribution systems, the demand for cablefault location accuracy is improved. In order to locate cable fault accurately,the wavelet transform is applied indetecting the traveling wave signal of power cable. According to the prineiple of singularity detection of sig-nals,the traveling wave starting pulse and reflection pulse time point is determined by searching modulus max-imum,and then locating by single terminal traveling wave method for the online fault location.The experimen-tal results show that the traveling wave singularity point can be detected by using localized time - frequencycharacteristic of wavelet transform,thereby the accurate time of pulse arrival is obtained. This method is notaffected by fault type and the range error is small,which can achieve a higher fault location accuracy.
- References:
- -
- Similar References:
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Last Update:
1900-01-01