Open AccessResearch on Electromagnetic Radiation Model of Corona Discharge with UHV AC Transmission Lines
Author(s) -
Chaoqun Li,
Song Xu,
Zhu-qing Xia,
Xin Yang,
Xixiu Wu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/486/1/012120
Subject(s) - corona discharge , corona (planetary geology) , electromagnetic field , corona ring , electromagnetic pulse , radiation , physics , transmission line , electromagnetic radiation , computational physics , dipole , mechanics , atomic physics , materials science , voltage , electrical engineering , optics , engineering , quantum mechanics , astrobiology , venus
The corona discharge pulse current has double exponential distribution characteristics. On this basis, the electromagnetic radiation model of corona discharge is established by using the theory of electric dipole. The corona discharge characteristics are analysed and compared with the measured results of 1000kV UHV ac transmission line. The results show that the electromagnetic field strength increases first and then decreases with time, and at the same time, the electromagnetic field strength decreases exponentially with distance. The simulated and predicted corona discharge radiation characteristics have the same variation law as the measured data, which verifies the correctness of the model.