| 超高压输电线路故障暂态行波的奇异性仿真分析研究 |
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| 引用本文： | 郭培青,颜平丽.超高压输电线路故障暂态行波的奇异性仿真分析研究[J].电气开关,2008,46(5):44-47. |
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| 作者姓名： | 郭培青 颜平丽 |
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| 作者单位： | 1. 广西电力工业勘察设计研究院,南宁,530023
2. 三峡大学电气信息学院,宜昌,443002 |
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| 摘 要： | 针对暂态保护的关键问题——暂态行波故障特征提取，把小波变换应用于暂态行波故障特征的提取。给出了应用小波变换提取行渡故障特征的方法和步骤，并对电压和电流行波的故障特征进行了初步分析和比较。用小波能够简单明确的反映行波分量的特点，从而可以有效的提取故障信息。为基于暂态行波特征的暂态保护及故障测距奠定了基础。
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| 关 键 词： | 输电线路 暂态保护 行波提取 小波变换 |
Singularity Detection of Transient Travelling Wave and its Analysis with Wavelet Transform |
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| GUO Pei-qing,YAN Ping-li.Singularity Detection of Transient Travelling Wave and its Analysis with Wavelet Transform[J].Electric Switchgear,2008,46(5):44-47. |
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| Authors: | GUO Pei-qing YAN Ping-li |
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| Affiliation: | GUO Pei-qing , YAN Ping-li (1. Guangxi Electirc Power Industry Survey Design and Research Institute, Naning 430023, China; 2. College of Electrical Engineering and Information, Three Gorges University, Yichang 443002, China) |
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| Abstract: | The abstract of the fault characteristics of transient travelling waves is difficult,this paper adopts wavelet transform to describe kinds of fault information.The method and process of the abstraction of the travelling wave with wavelet transform are given.The characteristics of voltage and current travelling waves are analyzed and compared.The matlab simulation results indicate that this method is simple and clear.This method provides the basis of transient protection,fault detection and fault location which base on travelling wave. |
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| Keywords: | transmission line transient protection travelling wave wavelet transform |
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