| Bd-小波用于从强电磁干扰中提取局部放电脉冲信号的研究 |
| |
| 引用本文： | 淡文刚,吕阳,陈祥训,郑健超. Bd-小波用于从强电磁干扰中提取局部放电脉冲信号的研究[J]. 电网技术, 2001, 25(1): 8-12 |
| |
| 作者姓名： | 淡文刚 吕阳 陈祥训 郑健超 |
| |
| 作者单位： | 1. 中国电力科学研究院,
2. 陕西省电力设计院, |
| |
| 摘 要： | 研究了Bd-小波的时频调节特性，结合放电脉冲的时频特性，得到适合于提取放电脉冲的Bd-小波，利用该小波研究了局部脉冲在小波域的特征，提出了利用小波变换从强电磁干扰环境中提取放电脉冲的方法；研究了利用该方法从连续周期性干扰和白噪声干扰中提取放电脉冲的可行性。最后从实际测量到的现场干扰中提取了放电脉中，表明了该方法的可行性和实用性。
|
| 关 键 词： | Bd－小波 时频特性 局部放电 电磁干扰 测量 |
| 文章编号： | 1000-3673 (2001) 01-0008-05 |
RESEARCH ON USING Bd-WAVELET IN PICKING UP PARTIAL DISCHARGE PULSE FROM STRONG ELECTROMAGNETIC INTERFERENCE |
| |
| DAN Wen-gang. RESEARCH ON USING Bd-WAVELET IN PICKING UP PARTIAL DISCHARGE PULSE FROM STRONG ELECTROMAGNETIC INTERFERENCE[J]. Power System Technology, 2001, 25(1): 8-12 |
| |
| Authors: | DAN Wen-gang |
| |
| Abstract: | The time frequency characteristics of Bd wavelet are studied. Combining the time frequency characteristics of discharge pulse, a Bd wavelet is obtained which is suitable for pickingup thedischargepulse. By use of thiswavelet the features of partialdischargepulse in thewavelet transform domain is researched, and a method of picking up discharge pulse from strong electromagnetic interference environment by use of wavelet transform is put forward. The possibility of picking up the discharge pulses from continuous periodical interference and white noise interference by this method is simulated respectively. Finally, the discharge pulse is picked up from the measured interference on site; and the feasibility and practicability of the presented method is verified. |
| |
| Keywords: | Bd wavelet time frequency characteristic PD electromagnetic interfere |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
