基于脉冲衰减规律的电缆故障定位方法  

Cable Breakdown Locating Method Based on a Pulse Attenuation Discipline

作　　者：彭杰[1] 周力行[1] 陈钊[2] 周涛[3] 黄知明[1] 邓慧都 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410114 [2]国网河北省电力公司检修公司,石家庄050000 [3]国网湖南省电力公司娄底分公司,湖南娄底417000

出　　处：《电力学报》2013年第6期468-472,共5页Journal of Electric Power

摘　　要：针对故障点反射波形难以辨识的问题,提出了一种基于脉冲衰减规律的反射波辨识方法。该方法的实质是将小波方法与脉冲衰减距离规律结合,利用小波寻找反射波头对应的时间,利用脉冲衰减距离规律剔除反射波中不相干波形,实现故障定位。该方法有效解决了小波定位方法的局限性,具有一定的研究意义。Aiming at the difficulty in identifying the reflec- tion waveform of the fault point, this paper proposes a reflected wave identification method based on the pulse attenuation law. The essence of this method is to combine wavelet method with pulse attenuation distance rule, use wavelet to look for the corre- sponding time of reflection wave-head, use the pulse attenuation distance rule to remove the irrelevant waveform in the reflected wave to realize fault location. This method effectively solves the limitation problem of wavelet positioning and has certain re- search significance.

关 键 词：电力电缆 外加脉冲 衰减规律 故障定位 

分 类 号：TM247[一般工业技术—材料科学与工程]