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    Suzhou Electric Appliance Research Institute
    期刊號: CN32-1800/TM| ISSN1007-3175

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    混合線路故障測距新方法的研究

    來源:電工電氣發布時間:2016-03-14 15:14 瀏覽次數:4

    混合線路故障測距新方法的研究 

    邱宇青 
    福建福清核電有限公司,福建 福清 350300 
     

    摘 要:為解決應用固有頻率測距法存在難以準確提取固有頻率主成分的問題。提出了利用聚類經驗模型分解(EEMD)來實現故障測距的方法,利用EEMD進行信號分解,對相關分量進行頻譜分析和主成分提取,進行故障測距計算。仿真分析表明,該方法可較好地解決混合線路故障測距時存在的頻譜混疊問題,實現較高精度的故障定位。
    關鍵詞:混合線路;故障測距;固有頻率;頻譜混疊;EEMD方法
    中圖分類號:TM755 文獻標識碼:A 文章編號:1007-3175(2015)04-0023-04


    Study on New Method of Fault Location for Hybrid Transmission Lines 

    QIU Yu-qing 
    Fujian Fuqing Nuclear Power Co., Ltd, Fuqing 350300, China 
     

    Abstract: It is difficult to accurately extract main components of natural frequencies when the method based on natural frequencies used. This paper proposed to use the ensemble empirical mode decomposition (EEMD) method to realize fault location, decomposing the signals in EEMD, analyzing the spectra of the related components, extracting the main components and carrying out fault location calculation. The simulation analysis shows that the method could well solve the spectra aliasing problem in fault location, realizing fault location in high precision.
    Key words: hybrid transmission line; fault location; natural frequencies; spectra aliasing; ensemble empirical mode decomposition algorithm


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