| 基于包络线和函数拟合的录波数据分析 |
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| 引用本文： | 曹炜,王永生,丁北平,张文青. 基于包络线和函数拟合的录波数据分析[J]. 上海电力学院学报, 2010, 26(4): 315-318326 |
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| 作者姓名： | 曹炜 王永生 丁北平 张文青 |
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| 作者单位： | 上海电力学院,电力与自动化工程学院,上海,200090 |
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| 摘 要： | 提出了一种基于包络线和函数拟合来分析短路电流录波数据的实用算法.首先对短路电流录波波形取包络线,利用指数函数拟合,滤除衰减直流分量;然后对周期分量取包络线,通过指数函数拟合来分析短路电流衰减基波分量,最终实现对暂态短路电流基波分量有效值时域内的多分辨率观察与研究.
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| 关 键 词： | 短路电流 录波数据 包络线 函数拟合 |
| 收稿时间： | 2010-04-19 |
Analytical Study of Fault Recording Data Based on Envelopes and Function Fitting |
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| CAO Wei,WANG Yong-sheng,DING Bei-ping and ZHANG Wen-qing. Analytical Study of Fault Recording Data Based on Envelopes and Function Fitting[J]. Journal of Shanghai University of Electric Power, 2010, 26(4): 315-318326 |
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| Authors: | CAO Wei WANG Yong-sheng DING Bei-ping ZHANG Wen-qing |
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| Affiliation: | CAO Wei,WANG Yong-sheng,DING Bei-ping,ZHANG Wen-qing(School of Electric Power and Automation Engineering,Shanghai University of Electric Power,Shanghai 200090,China) |
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| Abstract: | A practical method based on envelopes and function fitting to analyze short-circuit current fault recording data is proposed.Firstly,the short-circuit current recording wave is enveloped and the midline of the envelopes is fitted with the exponential function,which can be used to filter out the decaying DC component from the recording wave;secondly,the AC component is enveloped and the midline of the envelopes is fitted with the exponential function which can be used to present the decaying power frequently... |
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| Keywords: | short-circuit current fault recording data envelopes function fitting |
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