Open AccessResearch on antenna for detecting the corona discharge of transmission line
Author(s) -
Xia Yunfeng,
Song Xinming,
Jia Zhidong,
Wang Xilin,
Qi Jinfeng,
Xu Zheng
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8392
Subject(s) - antenna (radio) , partial discharge , transmission line , corona (planetary geology) , acoustics , transmission (telecommunications) , corona discharge , signal (programming language) , line (geometry) , physics , optics , electrical engineering , computer science , electronic engineering , telecommunications , engineering , mathematics , voltage , geometry , astrobiology , venus , programming language
Detection of corona discharge of the transmission line can reflect its health status and provide warning information for maintenance. Some existing detection methods are flawed and cannot be used widely. This study presents a new method by measuring the electromagnetic wave caused by corona discharge with RF antenna. Then a circularly polarised log‐periodic antenna was designed by making two pairs of log‐periodic antennas 90° orthogonal. Finally, this antenna was simulated and manufactured to detect electromagnetic signals, the result shows that the time domain signal of corona discharge is a high frequency oscillation wave and its fast Fourier transform main distributes between 200 and 350 MHz.