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| 小波变换在超高压输电线路双端故障测距中的应用 | |
| 引用本文： | 廖利荣,董臣,俞凯,廖玄.小波变换在超高压输电线路双端故障测距中的应用[J].广东电力,2010,23(11):10-13. |
| 作者姓名： | 廖利荣 董臣 俞凯 廖玄 |
| 作者单位： | 1. 三峡大学,湖北,宜昌,443002 2. 湖北超高压输变电公司,湖北,宜昌,443000 3. 宜昌电力勘测设计院,湖北,宜昌,443000 |
| 摘 要： | 研究了基于小波分解的故障测距,对故障行波电流信号进行相模变换,通过小波分解提取出故障分量发生奇异性的时间点,针对以往利用单端行波故障测距存在故障距离检测不准确的问题,采用双端故障测距将行波到达两端的时间相减,可以更准确地定位故障点。实例分析表明该方法有很高的测距精度。 |
| 关 键 词： | 行波 小波分解 波头检测 双端故障测距 |
Application of Wavelet Transformation in Double-end Fault Location in EHV Transmission Lines |
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| LIAO Li-rong,DONG Chen,YU Kai,LIAO Xuan.Application of Wavelet Transformation in Double-end Fault Location in EHV Transmission Lines[J].Guangdong Electric Power,2010,23(11):10-13. | |
| Authors: | LIAO Li-rong DONG Chen YU Kai LIAO Xuan |
| Affiliation: | LIAO Li-rong1,DONG Chen2,YU Kai3,LIAO Xuan1(1.China Three Gorges Univ.,Yichang,Hubei 443002,China,2.Hubei EHV Power Transmission Co.,Hubei 443000,3.Yichang Electric Power Survey Design Inst.,China) |
| Abstract: | This paper makes a research of fault location based on the wavelet decomposition,analyzing the fault traveling-wave current signal by phase-mode transformation,and then extracting the time spot of singular signal of fault component by wavelet decomposition.In view of the inaccurate fault location by conventional single-terminal traveling-wave method,double-terminal method that subtracts the time of traveling wave's arrival at both ends enables more accurate fault location.The simulation results show that th... |
| Keywords: | traveling wave wavelet decomposition wave head detection double-terminal fault location |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |