| 连续小波变换应用于电力系统行波奇异性检测的探讨 |
| |
| 引用本文： | 李友军,王俊生,郑玉平,徐丽娜,周文.连续小波变换应用于电力系统行波奇异性检测的探讨[J].电力系统自动化,2002,26(12):54-58. |
| |
| 作者姓名： | 李友军 王俊生 郑玉平 徐丽娜 周文 |
| |
| 作者单位： | 1. 国家电力公司电力自动化研究院,江苏省南京市,210003
2. 河海大学水电学院,江苏省南京市,210024 |
| |
| 摘 要： | 主要讨论了解决零模行波波头定位的问题，由于零模衰减严重，波头比较光滑，因而使用离散小波变换无法定位零模波头。文中将连续小波变换应用于定位零模波头中，在理论分析的基础上，得出了利用连续小波变换定位零模波头时小波基和小波变换尺度的选择原则，利用该原则的小波变换可以有效地定位零模波头，EMTP仿真证明了作用基于该原则的小波变换可以准确定位零模波头。
|
| 关 键 词： | 连续小波变换 电力系统 行波 奇异性检测 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
CONTINUOUS WAVELET TRANSFORM BASED SINGULARITY LOCATION OF TRANSMISSION LINE TRAVELLING WAVES |
| |
| Li Youjun ,Wang Junsheng ,Zheng Yuping ,Xu Lina ,Zhou Wen.CONTINUOUS WAVELET TRANSFORM BASED SINGULARITY LOCATION OF TRANSMISSION LINE TRAVELLING WAVES[J].Automation of Electric Power Systems,2002,26(12):54-58. |
| |
| Authors: | Li Youjun Wang Junsheng Zheng Yuping Xu Lina Zhou Wen |
| |
| Affiliation: | Li Youjun 1,Wang Junsheng 1,Zheng Yuping 1,Xu Lina 2,Zhou Wen 1 |
| |
| Abstract: | The main aim of this paper is to deal with location measurement of modal zero travelling wave front. Modal zero composition attenuate rigorously and the front is smooth, so it is impossible for discrete wavelet transform to be used to locate modal zero wave front. This paper discusses the application of continuous wavelet transform to locate modal zero wave front and obtains the principle of wavelet basis and scale selection based on theoretical analysis. Using the principle to locate modal zero wave front is effective from theoretical point of view. The result of EMTP further proves the principle reliable and location accurate. |
| |
| Keywords: | continuous wavelet transform (CWT) singularity measurement wavelet analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电力系统自动化》浏览原始摘要信息 |
|
点击此处可从《电力系统自动化》下载全文 |
