基于EMMD局域波分解的网络行波测距方法研究  

Research on network traveling wave fault location based on the decomposition of EMMD

作　　者：杜向楠 杨飞 郭宁明 闻福岳 许勇 DU Xiangnan;YANG Fei;GUO Ningming;WEN Fuyue;XU Yong(C-EPRI Electric Power Engineering Co.,Ltd.,Beijing 102200,China;State Grid Liaoning Electric Power Supply Co.Ltd.,Shenyang 110006,China)

机构地区：[1]中电普瑞电力工程有限公司,北京102200 [2]国网辽宁省电力有限公司,辽宁沈阳110006

出　　处：《电力系统保护与控制》2018年第21期175-181,共7页Power System Protection and Control

基　　金：国网新疆电力公司科技项目资助(5230BD1501GK)~~

摘　　要：目前,随着能源互联网的不断发展,行波测距装置省级互联为实现网络化测距提供了良好的数据平台。在重点分析网络行波的特征上,提出一种基于极值域均值模式分解(EMMD)的局域波自适应行波故障定位方法。该方法有效抑制了EMD分解过程中产生的过冲和欠冲现象。在模式混叠方面,在EEMD方法基础上提出了一种加入互补噪声的方法(CEEMD)。最后通过一组现场实际故障数据进行算例分析,验证了该方法的有效性。At present,with the continuous development of the energy of the Internet,traveling wave location device upgraded to the provincial Internet,the provincial Internet provides a good data platform to realize the network fault location.Focusing on the analysis of the network characteristics in traveling wave,this paper puts forward a method of local wave adaptive traveling wave fault location based on Extremum Field Mean Mode Decomposition(EMMD).This method effectively restrains the Empirical Mode Decomposition(EMD)overshoot and undershoot phenomenon in the process of decomposition and proposes a method of adding Complementary Noise based on EEMD(CEEMD)for mode aliasing.Finally,the effectiveness of the proposed method is verified by a set of field fault recorder data.

关 键 词：网络行波测距 EMMD分解 局域波 互补噪声 

分 类 号：TM75[电气工程—电力系统及自动化]