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傅里叶变换用于地下电缆故障检测(英文) 被引量：9

Use of Fourier Transformation for Detection of Faults in Underground Power Cables
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摘要 An analysis of underground power cables is performed using Fourier analysis with the objective of detecting fault and average life of the cables.Three types of cables are used in this experiment:a normal cable,a shorted cable, and a cable with holes.The impedance in each case is computed and Fourier transformation is applied so that the resulting impedance magnitude and impedance phase can be examined in the frequency domain.Various windowing techniques are applied to the experimental data to eliminate any interference.Fourier analysis is then applied to the impedance data calculated from both the sending end voltage and differential voltage.This analysis reveals differences in the frequency response of the three different types of a cable and can eventually be used as a measure for fault detection. Preliminary results reveal the differences in the frequency response.Accordingly,Fourier type methods can be effectively used as low cost and viable solutions to identify and detect faults in underground cables. An analysis of underground power cables is performed using Fourier analysis with the objective of detecting fault and average life of the cables. Three types of cables are used in this experiment： a normal cable, a shorted cable, and a cable with holes. The impedance in each case is computed and Fourier transformation is applied so that the re- suiting impedance magnitude and impedance phase can be examined in the frequency domain. Various windowing tech- niques are applied to the experimental data to eliminate any interference. Fourier analysis is then applied to the imped- ance data calculated from both the sending end voltage and differential voltage. This analysis reveals differences in the frequency response of the three different types of a cable and can eventually be used as a measure for fault detection. Preliminary results reveal the differences in the frequency response. Accordingly, Fourier type methods can be effectively used as low cost and viable solutions to identify and detect faults in underground cables.
作者 Abhishek Pandey Nicolas H.Younan
机构地区 Department of Electrical and Computer Engineering
出处 《高电压技术》 EI CAS CSCD 北大核心 2011年第11期2686-2692,共7页 High Voltage Engineering
关键词 Fourier analysis fault detection and identification underground power cable Fourier analysis fault detection and identification underground power cable
分类号 TM755 [电气工程—电力系统及自动化] TN911.7 [电子电信—通信与信息系统]
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参考文献11

  • 1Bialek T O. Evaluation and modeling of high voltage cable insulation using a high voltage impulse [D]. Mississippi State, USA: Mississippi State University, 2005.
  • 2Lee Jae-Duck, Ryoo Hee-Suk, Choi Sang-Bong, et al. Signal processing technology for fault location system in underground power cable[C]//IEEE PES Transmission and Distribution Conference and Exhibition. Dallas, USA: IEEE, 2005/2006: 839-842.
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高电压技术
2011年 第11期

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