發(fā)布時間：2018-06-16 15:38

  本文選題：避雷器在線監(jiān)測 + 頻率��； 參考：《電測與儀表》2016年22期

【摘要】：針對避雷器在線監(jiān)測裝置在復(fù)雜接線形式下無法準(zhǔn)確獲取電壓的難題,提出了一種基于電流和各母線電壓的頻率及相位差偏差均值的避雷器在線監(jiān)測電壓提取方法。本方法通過對電流與電壓頻率以及電流與電壓相位差的等時間間隔偏差的均值進(jìn)行計算分析并濾波,并采用閾值診斷算法實現(xiàn)對避雷器實際承受電壓的提取。實際驗證表明,該算法可以有效地剔除各種干擾,可靠區(qū)分不同頻率的電壓信號,從而準(zhǔn)確提取避雷器實際承受電壓,試驗和現(xiàn)場實際運(yùn)行說明該算法的有效性。
[Abstract]:In order to solve the problem that the lightning arrester on-line monitoring device can not accurately obtain the voltage under the complicated connection form, a method of voltage extraction based on the frequency of current and the voltage of each bus and the mean of phase difference deviation is proposed in this paper. In this method, the mean value of the equal time interval deviation between current and voltage frequency and phase difference between current and voltage is calculated and filtered, and the threshold diagnosis algorithm is used to extract the actual withstand voltage of the arrester. The actual verification shows that the algorithm can effectively eliminate all kinds of interference, reliably distinguish the voltage signals of different frequencies, and extract the actual voltage of arrester accurately. The experiment and field operation show that the algorithm is effective.
【作者單位】： 許繼電氣股份有限公司;
【分類號】：TM862

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本文編號：2027195