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| 基于小波变换的超高压输电线路故障选相新原理 | |
| 引用本文： | 胡巨,杨明玉,陈茂英. 基于小波变换的超高压输电线路故障选相新原理[J]. 广东电力, 2005, 18(1): 1-4 |
| 作者姓名： | 胡巨 杨明玉 陈茂英 |
| 作者单位： | 华北电力大学,电力工程系,河北,保定071003;华北电力大学,电力工程系,河北,保定071003;华北电力大学,电力工程系,河北,保定071003 |
| 基金项目： | 国家自然科学基金;广东省自然科学基金 |
| 摘 要： | 介绍了连续小波变换定义、基于多分辨分析的Mallat快速小波分解算法。根据超高压(EHV)输电线路故障暂态电流的特点。提出了基于小波变换能量特征的故障选相新原理和算法。借助MATLAB/SIMULINK仿真分析软件，研究了一实际电网EHV输电线路在区内不同故障条件下选相原理的有效性。结果表明，该方案是可行的。 |
| 关 键 词： | 超高压输电线路 故障选相 小波变换 暂态电流 |
| 文章编号： | 1007-290X(2005)01-0001-04 |
| 修稿时间： | 2004-04-27 |
A new theory for fault phase determination of EHV transmission lines based on wavelet transformation |
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| HU Ju,YANG Ming-yu,CHEN Mao-ying. A new theory for fault phase determination of EHV transmission lines based on wavelet transformation[J]. Guangdong Electric Power, 2005, 18(1): 1-4 | |
| Authors: | HU Ju YANG Ming-yu CHEN Mao-ying |
| Abstract: | The definition of continuous wavelet transformation and Mallat fast wavelet decomposition algorithm based on multiresolution analysis are described in this paper.According to the characteristics of fault transient current of extra-high voltage(EHV)transmission lines,a new theory for fault phase determination based on the features of wavelet transformation energy is presented.By the aid of MATLAB/SIMULINK simulation and analysis software,the validity of the theory applying to a real EHV system under different fault conditions is researched,and the result shows the feasibility of the theory. |
| Keywords: | EHV transmission line fault phase determination wavelet transformation transient current |
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