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水库分期汛限水位控制能在不增加防洪风险的条件下提高水库的兴利效益,而汛期的分期则是分期汛限水位控制的前提.介绍了集对分析理论及联系数的计算方法,以三峡水库宜昌站为例,利用统计学方法确定了洪水分期数目,并计算了汛期每一天的联系度和联系数,从而最终确定三峡水库的汛期分期.分期结果比较后表明,用集对分析方法得到的三峡水库汛期分期和其他方法的分期结果基本一致,但集对分析法原理易于理解,计算过程客观,实际使用方便,说明集对分析理论在汛期分期中的应用是可行的,值得进一步深入研究.
The reservoir flood control water level control can improve the benefit of the reservoir without increasing the risk of flood control, while the flood season is the precondition of the flood control stage water level control.This paper introduces the set-pair analysis theory and the calculation method of the connection number Taking Yichang station of the Three Gorges Reservoir as an example, the number of flood staging is determined by using statistical methods, and the contact degree and connection number of each day in flood season are calculated to finally determine the flood season staging of the Three Gorges Reservoir.The comparison of staging results shows that by using set pair analysis The staged results of the Three Gorges Reservoir during the flood season are basically the same as those of other methods, but the principle of set pair analysis is easy to understand. The calculation process is objective and practical. It is feasible to apply the set pair analysis theory in the flood season staging and is worth further studying the study.