| 基于小波提取的超宽频带局部放电信号分形分析 |
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| 引用本文： | 成永红,谢小军,蒋雁,陈小林,谢恒堃. 基于小波提取的超宽频带局部放电信号分形分析[J]. 西安交通大学学报, 2002, 36(6): 551-554 |
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| 作者姓名： | 成永红 谢小军 蒋雁 陈小林 谢恒堃 |
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| 作者单位： | 西安交通大学电力设备电气绝缘国家重点实验室,710049,西安 |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 0 770 14 ) . |
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| 摘 要： | 为了研究超宽频带局部放电信号在各个频段上的局部特征、发现特征频段，应用小波分析技术，将局部放电信号进行小波分解，使信号变为各个频段的信号，然后计算各个频率段信号的分维数，并通过分维数的变化，来量化分析信号特征峰的特征。应用这种方法，可以得到各频段的放电信号的分形特征，为进一步研究超宽频带放电信号的变化规律奠定了基础。
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| 关 键 词： | 超宽频带局部放电 小波包分解 特征频段 分形分析 |
| 文章编号： | 0253-987X(2002)06-0551-04 |
| 修稿时间： | 2001-10-26 |
Study on the Fractal Characteristics of Ultra-Wideband Partial Discharge Signals Based on Wavelet Analysis |
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| Cheng Yonghong,Xie Xiaojun,Jiang Yan,Chen Xiaolin,Xie Hengkun. Study on the Fractal Characteristics of Ultra-Wideband Partial Discharge Signals Based on Wavelet Analysis[J]. Journal of Xi'an Jiaotong University, 2002, 36(6): 551-554 |
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| Authors: | Cheng Yonghong Xie Xiaojun Jiang Yan Chen Xiaolin Xie Hengkun |
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| Abstract: | In order to analyze the characteristics of ultra wideband partial discharge signals in different frequency band and to find the characteristic frequency band, an ultra wideband partial discharge signal is decomposed into different frequency components based on wavelet analysis, then the fractal dimensions of the discharge signal in each frequency band is calculated, and the characteristics of the partial discharge signals can be expressed in numerical quantities with fractal dimensions. By the method, the fractal characteristics of ultra wideband partial discharge signals in different frequency band can be obtained, which can lay the foundation of further study on the variation law of ultra wideband partial discharge signals. |
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| Keywords: | ultra wideband partial discharge wavelet packet analysis characteristic peak fractal analysis |
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