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投稿时间：2010-04-19
投稿时间：2010-04-19
中文摘要: 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.
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 RMS of the short-circuit current.As a result,multi-resolution observation in the time domain for the power frequency component is realized.
文章编号：20100402 中图分类号： 文献标志码：
基金项目:国家自然科学基金(50907039)
| 作者 | 单位 | |
| 曹炜 | 上海电力学院 电力与自动化工程学院, 上海 200090 | cw-jenny@163.com |
| 王永生 | 上海电力学院 电力与自动化工程学院, 上海 200090 | |
| 丁北平 | 上海电力学院 电力与自动化工程学院, 上海 200090 | |
| 张文青 | 上海电力学院 电力与自动化工程学院, 上海 200090 |
引用文本：
曹炜,王永生,丁北平,等.基于包络线和函数拟合的录波数据分析[J].上海电力大学学报,2010,26(4):315-318326.
CAO Wei,WANG Yong-sheng,DING Bei-ping,et al.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.
曹炜,王永生,丁北平,等.基于包络线和函数拟合的录波数据分析[J].上海电力大学学报,2010,26(4):315-318326.
CAO Wei,WANG Yong-sheng,DING Bei-ping,et al.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.