NDLI: The probability model of broken transmission lines and collapsed towers under ice storms

Content Provider	IEEE Xplore Digital Library
Author	Wenjun Xu Homgming Yang Mingyong Lai Shuang Wang Yongxi Zhang
Copyright Year	2010
Description	Author affiliation: College of Electrical and Information Engineering, Changsha University of Science and Technology, Hunan, 410076, China (Wenjun Xu; Homgming Yang; Shuang Wang; Yongxi Zhang) \|\| College of Economy and Trade, Hunan University, Changsha 410082, China (Mingyong Lai)
Abstract	A model for assessing the probability of broken lines and collapsed towers under ice storms based on Extreme Value Theory (EVT) and Copula function is presented. In this model, the Generalized Pareto Distributions (GPDs) of meteorological variables, such as wind speed and freezing precipitation are proposed. A probability distribution of ice thickness is developed, the probability distributions of ice loads and wind loads on transmission lines are analyzed. Further more, considering the dependence of ice loads and wind loads, a load joint probability distribution is estimated by the Gumbel Copula function. Based on this, the assessment model of the probability of broken lines and collapsed towers under ice storms is constructed. The accuracy and validity of this model is demonstrated with comparison between numerical results and the historical datas of Chen Zhou power transmission systems.
Starting Page	1
Ending Page	7
File Size	622286
Page Count	7
File Format	PDF
ISBN	9781424465491
ISSN	19449925
e-ISBN	9781424465514
e-ISBN	9781424483570
DOI	10.1109/PES.2010.5589786
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ice Poles and towers Power transmission lines Storms Probability distribution Load modeling Joints collapsed towers EVT ice thickness Copula function joint probability distribution broken lines
Content Type	Text
Resource Type	Article

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