[1]孙 波,李海涛,赵哲源,等.广义S变换在金属氧化物避雷器在线监测中的应用研究[J].电瓷避雷器,2019,(06):85-90.[doi:10.16188/j.isa.1003-8337.2019.06.015]
 SUN Bo,LI Haitao,ZHAO Zheyuan,et al.Research on the Application of the Generalized S Transform in On-Line Monitoring of Metal Oxide Arrester[J].,2019,(06):85-90.[doi:10.16188/j.isa.1003-8337.2019.06.015]
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广义S变换在金属氧化物避雷器在线监测中的应用研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年06期
页码:
85-90
栏目:
避雷器
出版日期:
2019-12-10

文章信息/Info

Title:
Research on the Application of the Generalized S Transform in On-Line Monitoring of Metal Oxide Arrester
作者:
孙 波 李海涛 赵哲源 徐子鲲 秦 镜
(国网淮安供电公司, 江苏 淮安 223002)
Author(s):
SUN Bo LI Haitao ZHAO Zheyuan XU Zikun QIN Jing
(State Grid Huai'an Power Supply Company, Huai'an 223002, China)
关键词:
金属氧化物避雷器 泄漏电流 去噪 广义S变换 谱熵
Keywords:
metal oxide arrester leakage current de-noising generalized S transform spectrum entropy
DOI:
10.16188/j.isa.1003-8337.2019.06.015
摘要:
针对金属氧化物避雷器泄漏电流信号易受噪声干扰、传统去噪方法去噪效果不理想的现状,利用广义S变换在分析非平稳信号领域的独特优势,将广义S变换应用到避雷器的泄漏电流去噪中,结合谱熵的相关理论,在广义S变换高质量的时频分布上设计了一种新型时频滤波器。采用波形相似系数、均方根误差、信噪比和波形特征作为去噪效果评价标准,通过与其它去噪方法在仿真信号和现场实测信号的去噪结果对比分析,验证了本文所提方法在金属氧化物避雷器泄漏电流信号去噪中的优越性和稳定性,可为金属氧化物避雷器运行状况评估提供有效的借鉴和技术支持。
Abstract:
In view of the situation that the leakage current signal of metal oxide arrester is easy to be disturbed by noise and the traditional de-noising method is not satisfying. With the unique advantages of the generalized S transform at non-stationary signal processing, the generalized S transform is applied to the de-noising of the leakage current, combining with the theory of spectral entropy, a new time-frequency filter is designed on the high quality time-frequency distribution of generalized S transformation. Waveform similarity coefficient, root-mean-square error, signal-to-noise ratio and waveform characteristics are used as the evaluation criteria for de-noising effect. Through the comparison with other de-noising methods in the simulation signal and field measurement signal de-noising, the advantages and stability of the method proposed in this paper was verified which provides reference and technical support for the performance evaluation of the metal oxide arrester.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-04-01 作者简介:孙波(1977—),男,高级工程师,主要从事电网规划及电源接入方面研究。
更新日期/Last Update: 2019-12-10