| 双正交小波在行波故障测距中的应用 |
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| 引用本文： | 胡海安. 双正交小波在行波故障测距中的应用[J]. 江苏电机工程, 2005, 24(5): 15-18 |
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| 作者姓名： | 胡海安 |
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| 作者单位： | 苏州供电公司,江苏,苏州,215004 |
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| 摘 要： | 首先从理论上简单阐述了一种关于广义线性相位的紧支撑的双正交小波的构造.然后针对电力系统高压输电线行波故障测距的特点,避免在运用多尺度小波变换检测行波波头时出现相移,将该小波用于对故障信号进行分析.分别对单相接地短路、两相短路、两相短路接地和三相短路等几种情况进行仿真实验,得出具有广义线性相位的紧支撑的双正交小波在输电线行波故障测距中有很高的实用性和优越性.
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| 关 键 词： | 双正交小波 行波故障测距 仿真 |
| 文章编号： | 1009-0665（2005）05-0015-04 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-05-23 |
Application of Traveling Wave Fault Location by Bi-orthogonality Wavelet |
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| HU Hai-an. Application of Traveling Wave Fault Location by Bi-orthogonality Wavelet[J]. Jiangsu Electrical Engineering, 2005, 24(5): 15-18 |
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| Authors: | HU Hai-an |
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| Affiliation: | Suzhou Power Supply Company, Suzhou 215004, China |
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| Abstract: | In this article, a construction method of the compactly supported bi-orthogonality wavelet with linear phase is demonstrated on theory first. Then considering the characteristic of power system traveling wave fault location and avoiding phase-moving when measuring the head of traveling wave using multi-scales wavelet transform ,this kind of wavelet is used to assay the fault signal. In this paper, some emulation experimentations have been done. The experiment has simulated four typical faults of power system transmission line. Through the analysis of experiment result, we may have a conclusion that using the compactly supported bi-orthogonality wavelet with linear phase to analyze fault signal of transmission line is more effective and superior. |
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| Keywords: | bi-orthogonality wavelet traveling wave fault location simulation |
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