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| 离散小波变换用于输电线路故障暂态行波信息压缩 | |
| 引用本文： | 陈平,徐丙垠,葛耀中,刘湖连. 离散小波变换用于输电线路故障暂态行波信息压缩[J]. 电力系统自动化, 2000, 24(4): 31-36 |
| 作者姓名： | 陈平 徐丙垠 葛耀中 刘湖连 |
| 作者单位： | 1. 淄博科汇电气有限公司,山东淄博,255031 2. 西安交通大学电气工程学院,西安,710049 3. 西部电力有限公司,深圳,518052 |
| 基金项目： | 国家自然科学基金!资助项目(59877020) |
| 摘 要： | 从工程的角度论述了小波的基本特性、有限支集正交小波基的构造以及相应的离散小波变换算法，进而将小波分析法用于输电线路故障暂态行波信号的压缩，并对信号压缩比以及重构误差随压缩级数的变化规律进行了研究，旨在寻求一种信号压缩的自适应优化方案。文中所采用的算法具有可操作性。 |
| 关 键 词： | 离散小波变换 输电线路 暂态行波 故障测距 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
DISCRETE WAVELET TRANSFORM AND ITS APPLICATION TO COMPRESSION OF SIGNAL OF FAULT INDUCED TRANSIENT TRAVELLING WAVES ON TRANSMISSION LINES |
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| Chen Ping,Xu Bingyin,Ge Yaozhong,Liu Hulian. DISCRETE WAVELET TRANSFORM AND ITS APPLICATION TO COMPRESSION OF SIGNAL OF FAULT INDUCED TRANSIENT TRAVELLING WAVES ON TRANSMISSION LINES[J]. Automation of Electric Power Systems, 2000, 24(4): 31-36 | |
| Authors: | Chen Ping Xu Bingyin Ge Yaozhong Liu Hulian |
| Abstract: | With the view point of engineering, this paper describes the basic characteristics of wavelets and som e concerned algorithm s for construction of com pactly supported orthogonalw avelet bases and realization of discrete w avelet transform s (DWT). After that, the discrete w avelet transform based approach is applied to com pression of signal of fault induced transienttravelling w aves on transm ission lines. To search an adaptive and optim alschem e for the signalcom pression, the varieties of the com pression ratio and reconstruction error with the increase of the com pression scale are studied. All algorithm s adopted in this paper are controllable. This projectissupported by NationalNaturalScience Foundation ofChina (No.59877020). |
| Keywords: | discrete w avelettransform (DWT) transm ission line transienttravelling w aves adaptive signalcom pression |
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