| 输电线路暂态电压行波的故障特征及其小波分析 |
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| 引用本文： | 董新洲,刘建政,余学文. 输电线路暂态电压行波的故障特征及其小波分析[J]. 电工技术学报, 2001, 16(3): 57-61，74 |
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| 作者姓名： | 董新洲 刘建政 余学文 |
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| 作者单位： | 1. 清华大学电机系
2. 国电南自股份有限公司 |
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| 基金项目： | 国家自然科学基金!资助项目 (5 0 0 770 11)，清华大学基础研究基金!资助项目 (JC2 0 0 0 0 2 1) |
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| 摘 要： | 分析了电压行波的基本故障特征 ,给出了电压行波故障特征的新的数学描述———小波表示。建立起了电压行波的故障特征和小波变换模极大值之间的联系 :通过有限个具有明确物理意义的小波变换模极大值 ,完整、清晰地刻划了暂态电压行波的故障特征。为构造性能优良、可靠的行波测距和行波保护奠定了重要的数学基础。
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| 关 键 词： | 输电线路 电压行波 故障特征 小波变换 模极大值 |
| 修稿时间： | 2000-12-20 |
Fault Characteristics and Wavelets Analysis of the Transient Voltage Travelling Waves |
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| Dong Xinzhou Liu Jianzheng. Fault Characteristics and Wavelets Analysis of the Transient Voltage Travelling Waves[J]. Transactions of China Electrotechnical Society, 2001, 16(3): 57-61，74 |
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| Authors: | Dong Xinzhou Liu Jianzheng |
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| Affiliation: | Dong Xinzhou Liu Jianzheng(Qinghua University 100084 China) Yu Xuewen(Guodian Nanjing Automation Co Ltd 210003 China) |
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| Abstract: | The basic fault characteristics of the voltage travelling waves are analyzed and the representation of wavelets for voltage travelling waves is given out The links between the voltage travelling waves and wavelet transform are built up,that is,through the finite numbers of modulus maxima of the wavelet transform,the fault characteristics of the transient voltage travelling waves are clearly represented The works set up a mathematical basis for the travelling waves based protection and fault location |
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| Keywords: | Transmission line Voltage travelling waves Fault characteristic Wavelet transform Modulus maxima |
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