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

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混合线路故障测距新方法的研究

来源:电工电气发布时间:2016-03-14 15:14 浏览次数:4

混合线路故障测距新方法的研究 

邱宇青 
福建福清核电有限公司,福建 福清 350300 
 

摘 要:为解决应用固有频率测距法存在难以准确提取固有频率主成分的问题。提出了利用聚类经验模型分解(EEMD)来实现故障测距的方法,利用EEMD进行信号分解,对相关分量进行频谱分析和主成分提取,进行故障测距计算。仿真分析表明,该方法可较好地解决混合线路故障测距时存在的频谱混叠问题,实现较高精度的故障定位。
关键词:混合线路;故障测距;固有频率;频谱混叠;EEMD方法
中图分类号:TM755 文献标识码:A 文章编号: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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