基于皮尔逊III型概率分布的湖南电网覆冰重现期计算

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Abstract Icing recurrence interval is a token of specifically ice-cover frequency. It is very important to master exact icing recurrence interval for power grid anti icing. Using the 57 years icing observation data of 97 weather observation stations, calculation method of power grid icing recurrence interval based on Pearson III Type Distribution is presented, and icing days for recurrence period of 15 years, 30 years, 50 years and 100 years are calculated. Icing day distributing maps of Hunan province are painted with interpolation arithmetic, which provide direction for anti icing of power grid. According to the rule that extra serious icing is more than 11 icing days, recurrence period of extra serious icing is calculated. The result shows that recurrence period of extra serious icing similarly 2008 year is 12.4 years. This is accordant with that there are four times extra serious ice-cover in past 57 years. Knowledge of importance for resisting ice disaster is improved by this paper.

Key words： Icing recurrence interval Pearson III type distribution once for multi-years

Received: 04 May 2010 Published: 27 November 2013

PACS:	TM752
	TM726

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	Lu Jiazheng
	Zhang Hongxian
	Peng Jiwen
	Fang Zhen
	Li Bo

Cite this article:

Lu Jiazheng,Zhang Hongxian,Peng Jiwen等. Calculation of Hunan Power Grid Icing Recurrence Interval Based on Pearson III Type Probability Distribution[J]. Transactions of China Electrotechnical Society, 2013, 28(1): 80-86.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I1/80

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