| 小波变换在零序电流暂态高频信号分析中的应用 |
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| 引用本文： | 林军.小波变换在零序电流暂态高频信号分析中的应用[J].电工技术学报,2004,19(4):89-92. |
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| 作者姓名： | 林军 |
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| 作者单位： | 福州大学电气工程系,福州,350002 |
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| 摘 要： | 小接地电流系统单相接地时,在零序电流中的高频暂态信号包含了可用于区别故障线路与非故障线路的信息.利用Morlet小波对此信号实施变换,通过分析变换结果的幅值和相位可以有效的区别故障线路与非故障线路.经过仿真和实验证明该方法是可靠、有效的.
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| 关 键 词： | 小波分析应用 暂态高频信号 故障选线 |
| 修稿时间： | 2003年2月18日 |
Application of Wavelet Transform to Analysis of Transient High Frequency Signal on Zero Sequence Current |
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| Lin Jun.Application of Wavelet Transform to Analysis of Transient High Frequency Signal on Zero Sequence Current[J].Transactions of China Electrotechnical Society,2004,19(4):89-92. |
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| Authors: | Lin Jun |
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| Affiliation: | Fuzhou University Fuzhou 350002 China |
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| Abstract: | When single phase to grounding fault occurs on a small current neutral grounding system, the transient high frequency signal on the zero sequence current includes messages that can distinguish fault line and non-fault lines. Using Morlet Wavelet transform on this signal, by the modulus and phase of the wavelet transform results the fault line can be accurately picked out. The paper presents this method. The simulation and experiments in lab verified the effectiveness and reliability of this method. |
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| Keywords: | Application of wavelet analysis transient high frequency signal detection fault power line |
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