TY - GEN
T1 - Synoptic Characteristics and Ice Prediction Model Test Based on an Ice Event of Ultra-High-Voltage Transmission Lines in the Northwest of Guangdong in 2022
AU - Zhenzhen, Zhou
AU - Yunhai, Song
AU - Sen, He
AU - Heyan, Huang
AU - Yuhao, He
AU - Shaohui, Zhou
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This February 2022 is a very serious ice-covering of ultra-high voltage transmission lines in Guangdong area, with a maximum ice-covering thickness of 32.68 mm. In this paper, using ERA5 reanalysis information and ice-covering monitoring system information provided by the Southern Power Grid, we discuss the causes of this ice-covering in depth from the weather circulation situation, temperature and humidity vertical layer changes, and meteorological conditions, and compare and analysis the ice-covering forecast model prediction results with the actual ice-covering data. It is finally found that the effect of cold vortex in northeast region and western Pacific vice high makes the horizontal trough turn vertical, guiding cold air southward and converging with wet air in Guangdong, which is favorable for ice cover generation; the results of model comparison show that the temperature decreases rapidly from above 0 to below 0, which is easy to generate ice cover, and the model forecast results match with the actual ice cover process, and the error comes from the unstable forecast accuracy of meteorological elements temperature and wind speed.
AB - This February 2022 is a very serious ice-covering of ultra-high voltage transmission lines in Guangdong area, with a maximum ice-covering thickness of 32.68 mm. In this paper, using ERA5 reanalysis information and ice-covering monitoring system information provided by the Southern Power Grid, we discuss the causes of this ice-covering in depth from the weather circulation situation, temperature and humidity vertical layer changes, and meteorological conditions, and compare and analysis the ice-covering forecast model prediction results with the actual ice-covering data. It is finally found that the effect of cold vortex in northeast region and western Pacific vice high makes the horizontal trough turn vertical, guiding cold air southward and converging with wet air in Guangdong, which is favorable for ice cover generation; the results of model comparison show that the temperature decreases rapidly from above 0 to below 0, which is easy to generate ice cover, and the model forecast results match with the actual ice cover process, and the error comes from the unstable forecast accuracy of meteorological elements temperature and wind speed.
KW - forecasting model
KW - meteorological elements styling
KW - transmission line icing
KW - weather situation
UR - http://www.scopus.com/inward/record.url?scp=85164662065&partnerID=8YFLogxK
U2 - 10.1109/ICCCBDA56900.2023.10154720
DO - 10.1109/ICCCBDA56900.2023.10154720
M3 - Conference contribution
AN - SCOPUS:85164662065
T3 - 2023 8th International Conference on Cloud Computing and Big Data Analytics, ICCCBDA 2023
SP - 610
EP - 615
BT - 2023 8th International Conference on Cloud Computing and Big Data Analytics, ICCCBDA 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Cloud Computing and Big Data Analytics, ICCCBDA 2023
Y2 - 26 April 2023 through 28 April 2023
ER -