TY - GEN
T1 - Research on the Influence Mechanism of Thermal Aging Degree of Cable on Frequency Domain Reflectometry and Defect Location Accuracy
AU - Zhang, Haotian
AU - Mu, Haibao
AU - Zou, Xingyu
AU - Zhang, Daning
AU - Lu, Xu
AU - Tian, Jie
AU - Yu, Peng
AU - Ding, Ning
AU - Zhang, Guanjun
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/4/11
Y1 - 2021/4/11
N2 - Compared with high-voltage transmission cables, 10kV distributed cables are currently receiving less attention. Contrary to the continuously improving national overall power supply reliability, the failure rate of 10kV distribution cables is not optimistic. Thermal aging is an important cause of defects in distributed cables, which further develop into failures. This paper conducts research on defects of different severity, uses FDR to determine the severity of defects, and analyzes the impact of defect development on positioning accuracy. Firstly, we establish a simulation model of the aging cable, and use the windowed Fourier transform to locate the multi-point aging. Then, we carry out relevant experiments based on the simulation results to further verify the accuracy of the algorithm. The simulation and test results show that for cables of the same length, the aging time has no effect on the defect location accuracy. The positioning accuracy of simulation and test algorithms are within 0.46%.
AB - Compared with high-voltage transmission cables, 10kV distributed cables are currently receiving less attention. Contrary to the continuously improving national overall power supply reliability, the failure rate of 10kV distribution cables is not optimistic. Thermal aging is an important cause of defects in distributed cables, which further develop into failures. This paper conducts research on defects of different severity, uses FDR to determine the severity of defects, and analyzes the impact of defect development on positioning accuracy. Firstly, we establish a simulation model of the aging cable, and use the windowed Fourier transform to locate the multi-point aging. Then, we carry out relevant experiments based on the simulation results to further verify the accuracy of the algorithm. The simulation and test results show that for cables of the same length, the aging time has no effect on the defect location accuracy. The positioning accuracy of simulation and test algorithms are within 0.46%.
KW - Thermal aging
KW - defect location
KW - frequency domain spectroscopy (FDR)
KW - three-core cable
UR - https://www.scopus.com/pages/publications/85114054253
U2 - 10.1109/ICEMPE51623.2021.9509236
DO - 10.1109/ICEMPE51623.2021.9509236
M3 - 会议稿件
AN - SCOPUS:85114054253
T3 - ICEMPE 2021 - 3rd International Conference on Electrical Materials and Power Equipment
BT - ICEMPE 2021 - 3rd International Conference on Electrical Materials and Power Equipment
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd International Conference on Electrical Materials and Power Equipment, ICEMPE 2021
Y2 - 11 April 2021 through 15 April 2021
ER -