| 用于提取GIS局部放电信号的正交紧支复小波构造研究 |
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| 引用本文： | 唐炬,谢颜斌,朱伟,魏钢.用于提取GIS局部放电信号的正交紧支复小波构造研究[J].电工技术学报,2006,21(5):87-91. |
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| 作者姓名： | 唐炬 谢颜斌 朱伟 魏钢 |
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| 作者单位： | 1. 重庆大学高电压与电工理论新技术教育部重点实验室,重庆,400044
2. 浙江省嘉兴电力局,嘉兴,314001 |
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| 基金项目： | 国家自然科学基金(50577069)，国家电网公司(SGKJ[2003]301)资助项目。 |
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| 摘 要： | 分析了复小波的优点,根据正交小波构造的条件,采用“保持实小波滤波器的幅频特性,改变其相频特性”的方法,构造了与相应实小波具有相同幅频特性、不同相频特性的复小波,并论证了该构造法的正确性,给出了具体的方法和步骤以及所构造的db4复小波滤波器组系数,并以此复小波为例研究从白噪声中提取局部放电信号。
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| 关 键 词： | 局部放电 复小波 气体绝缘组合电器 |
| 修稿时间： | 2005年1月25日 |
Construction of the Orthogonal Support Complex Wavelet for Distilling Partial Discharge Signals in GIS |
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| Tang Ju,Xie Yanbin,Zhu Wei,Wei Gang.Construction of the Orthogonal Support Complex Wavelet for Distilling Partial Discharge Signals in GIS[J].Transactions of China Electrotechnical Society,2006,21(5):87-91. |
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| Authors: | Tang Ju Xie Yanbin Zhu Wei Wei Gang |
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| Affiliation: | Tang Ju1 Xie Yanbin1 Zhu Wei2 Wei Gang1 (1. Chongqing University Chongqing 400044 China 2. Zhejiang Jiaxing Electric Power Bureau (office) Corp. Jiaxing 314001 China) |
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| Abstract: | This paper analyses the advantages of complex wavelet. According to the construction conditions of orthonormal wavelet, by remaining amplitude-spectrum characteristic of real wavelet filter and changing its phase-frequency characteristic, complex wavelets is constructed with the same amplitude-frequency characteristic and different phase-frequency characteristic. And then the correctness of this method is verified and the steps in detail are presented. Finally, db4 complex wavelet is constructed and used to extract the PDs from white noise. |
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| Keywords: | Partial discharge(PD) complex wavelet gas insulated switchgear(GIS) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
