Partial Discharge Localization through a UHF Signal Amplitude Strength Attenuation Approach

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Jia, Tingbo^1 ; Zheng, Nan^1 ; Sun, Anqing^1 ; Li, Peng^1 ; Yu, Qichen^2 ; Luo, Lingen^2

Rizhao Power Supply Company, Shandong Electric Power Corporation, Rizhao, China^1

Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China^2

关键词: Accurate measurement;    Attenuation model;    Fingerprinting-based positioning;    Insulation deterioration;    Localization equations;    Source localization;    Stable operation;    Ultra-high frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012123/pdf
DOI  :  10.1088/1757-899X/486/1/012123

来源: IOP

【 摘 要 】

Accurate measurement and localization of Partial Discharge (PD) is necessary for safe and stable operation of power equipment. Recently, the method based on the amplitude strength of Ultra High Frequency (UHF) signals has been proposed that bearing a low hardware requirement compared to time-difference-based methods. However, the widely studied fingerprinting based positioning technology is hard to deployed due to a heavy burden of fingerprinting map building. Therefore, this paper proposes an amplitude strength attenuation model and localization equation is proposed for PD localization in air-insulated substation. The field test is performed and the results show that the mean PD source localization error is 2.51 meters which is enough to distinguish the power equipment that having insulation deterioration.