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Abstract:
频域故障测距方法在正确提取故障行波固有频率主成分的前提下可精确地测出故障距离.而对于架空线-电缆混合输电线路,由于波阻抗不连续,会形成混叠的固有频率频谱,给正确识别和提取故障行波固有频率主成分带来困难.为此,提出一种基于聚类经验模型分解(EEMD)的故障测距方法.EEMD分解克服了传统分解造成的频谱混叠问题,EEMD分解得到的IMF分量经过频谱分析后提取固有频率主成分,从而实现故障测距.最后的仿真分析表明,该方法可较好地解决混合线路故障测距时存在的频谱混叠问题,实现较高精度的故障定位.
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电气开关
ISSN: 1004-289X
CN: 21-1279/TM
Year: 2015
Issue: 6
Volume: 53
Page: 83-86
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 4
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