| 引用本文: | 刘震宇,刘振英,范贺明.基于EMD-ICA的高压电缆局部放电信号去噪研究[J].电力系统保护与控制,2018,46(24):83-87.[点击复制] |
| LIU Zhenyu,LIU Zhenying,FAN Heming.Study on signal de-noising of high voltage cable partial discharge based on EMD-ICA[J].Power System Protection and Control,2018,46(24):83-87[点击复制] |
|
| 摘要: |
| 为了解决高压电缆绝缘监测系统在实际工作环境中采集的局部放电(PD)脉冲信号含有噪声的问题，提出了一种融合ICA的EMD去噪算法。详细介绍了该算法的去噪原理。该算法的优点在于不仅有效地去除了局部放电脉冲信号中的噪声，而且还很好地保留了PD信号的完整性。经过实验室模拟实验和现场在线绝缘监测实验，可以看出该算法取得了很好的去噪效果，证实了该算法的有效性与可靠性。 |
| 关键词: 高压电缆 EMD 去噪 局部放电信号 |
| DOI：10.7667/PSPC180136 |
| 投稿时间：2018-01-30修订日期：2018-03-09 |
| 基金项目:国家自然科学基金河南联合项目资助 (U1404522) |
|
| Study on signal de-noising of high voltage cable partial discharge based on EMD-ICA |
| LIU Zhenyu,LIU Zhenying,FAN Heming |
| (Chengde Power Supply Company, State Grid Jibei Electric Power Co., Ltd., Chengde 067000, China;Chengde Haoyuan Electric Loading Group Limited, Chengde 067000, China) |
| Abstract: |
| In order to solve the problem that the high voltage cable insulation monitoring system collects the noise of the partial discharge pulse signal in the actual working environment, this paper presents an EMD denoising algorithm based on ICA. The principle of denoising of the algorithm is introduced in detail. The advantage of the algorithm is that it not only effectively removes the noise in the PD signal but also retains the integrity of the PD signal well. After laboratory simulation experiments and on-site monitoring of on-line insulation, we can see from the experimental results that the algorithm has a good effect of denoising, which proves the effectiveness and reliability of the algorithm. This work is supported by Henan Joint Project of National Natural Science Foundation of China (No. U1404522). |
| Key words: high voltage cable EMD denoising partial discharge signal |
