Open AccessRisk assessment framework of geomagnetic storm disaster in long-distance UHV transmission system
Author(s) -
Jiang Lin,
Weili Wu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/510/2/022015
Subject(s) - earth's magnetic field , geomagnetically induced current , geomagnetic storm , meteorology , storm , transformer , waveform , geomagnetic secular variation , geophysics , geology , environmental science , magnetic field , electrical engineering , engineering , physics , voltage , quantum mechanics
Based on the reference geomagnetic field waveform issued by NERC, a fault assessment framework of geomagnetic storm disaster in 750 kV UHV transmission system in China is established. Six factors are considered: geomagnetic latitude, earth conductivity, transformer GIC reactive response, transformer GIC thermal effect, geomagnetic field waveform and wide area geomagnetic storm effect. The research results can provide useful reference for the vulnerability assessment of geomagnetic storms in power system.