Research of Power Cable Fault Location Based on Wavelet TransfeIrm
[1]LIAOXiao-hui,LIANGHengna,DING Qian.Research of Power Cable Fault Location Based on Wavelet TransfeIrm[J].Journal of Zhengzhou University (Engineering Science),2013,34(03):6-9.[doi:10.3969/j.issn.1671-6833.2013.03.002]
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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:
6-9
Column:
Public date:
2013-05-31
- Title:
- Research of Power Cable Fault Location Based on Wavelet TransfeIrm
- CLC:
- TM743
- Abstract:
- Withwide application ofpower cable in transmission anddistribution systems，the demandforcable fault location accuracy is improved．In orderto locate cable fault accurately，thewavelet transform is appliedin detectingthe travelingwave signal of power cable．According to the principle of singularity detection of signals，the travelingwave starting pulse andreflection pulse time point is determined bysearchingmodulusmax— imum，andthen locatingbysingle terminal travelingwavemethodforthe online fault location．The experimental results show that the traveling wave singularity point can be detected by using localized time——frequency characteristic of wavelet transform，thereby the accurate time of pulse arrival is obtained．This method is not affected by fault type andthe range error is small，which can achieve ahigher fault location accuracy．
- References:
-
[1]徐丙垠，李胜祥，陈宗军．电力电缆故障探测技术[M]．北京：机械工业出版社，1999．[2]刘嫣，汪梅．一种新的电缆单端故障测距方法研究[J]．仪器仪表学报，2006，27(6)：44—45．
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Last Update:
1900-01-01