南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2014年
3期
47-51,99
,共6页
林力辉%闫航瑞%岳鑫桂%胡枫
林力輝%閆航瑞%嶽鑫桂%鬍楓
림력휘%염항서%악흠계%호풍
树闪故障%高频干扰%特征分析%特征信息
樹閃故障%高頻榦擾%特徵分析%特徵信息
수섬고장%고빈간우%특정분석%특정신식
vegetation-related failures%high-frequency interference%characteristic analysis%characteristic information
采用小波分析结合常用信号处理的方法进行输电线路树闪故障行波信号分析，剔除硬件噪声及线路本身高频干扰信号，实现树闪故障的特征信号的正确有效提取。结果表明：基于输电线路行波分析获得的树闪故障特征信号较之行波信号，能更好地凸显故障特征，改善故障定位效果。
採用小波分析結閤常用信號處理的方法進行輸電線路樹閃故障行波信號分析，剔除硬件譟聲及線路本身高頻榦擾信號，實現樹閃故障的特徵信號的正確有效提取。結果錶明：基于輸電線路行波分析穫得的樹閃故障特徵信號較之行波信號，能更好地凸顯故障特徵，改善故障定位效果。
채용소파분석결합상용신호처리적방법진행수전선로수섬고장행파신호분석，척제경건조성급선로본신고빈간우신호，실현수섬고장적특정신호적정학유효제취。결과표명：기우수전선로행파분석획득적수섬고장특정신호교지행파신호，능경호지철현고장특정，개선고장정위효과。
Traveling-wave signal analysis of transmission lines vegetation-related faults adopts the methods of wavelet analysis and common signal processing, eliminates high frequency interference signals from the transmission lines itself and hardware noise sig-nals, achieves the goals of extracting vegetation flashover fault characteristic signal accurately and efficiently. Results indicates that the characteristic signal of vegetation flashover failure acquired from the transmission line traveling wave analysis can better highlight the fault characteristic and improve fault location result than that from the traveling wave signal.
