Journal
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Volume 51, Issue 3, Pages 1997-2002Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2014.2365295
Keywords
Glaze frost; ice covering; meteorological condition; microterrain; overhead transmission lines; power grid
Funding
- National Natural Science Foundation of China [61233008]
- Hunan Provincial Science & Technology Key Grant Project Foundation [2012FJ1003]
- Hunan province academic scientific research industrialization project [12CY007]
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Ice-covering characteristics are often researched in transportation, communication, and electric power industry. China Hunan Power Grid can easily suffer from ice disaster because of its geographical and climate environment. In particular, in the 2008 ice disaster, icing on overhead transmission lines and facilities caused outage in some cities and counties with a total population of about 30 million people. The ice-covering characteristics of the China Hunan Power Grid were analyzed in this paper. The recorded icing and frost climate data were investigated and analyzed. The model of overhead power line icing was proposed. The ice accretion mechanism was thus revealed. The icing impact factors such as geographical situation, climate characteristics, freezing weather characteristics, microterrain, and elevation were also presented in detail. The necessary conditions for ice-covering formation and the glaze frost distribution of Hunan Province were obtained.
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