摘要
溪洛渡水利枢纽工程是长江防洪体系的重要组成部分,为提高溪洛渡水库的防洪能力和兴利效益,实现金沙江流域洪水资源的安全利用,探讨溪洛渡水库汛期合理划分并进行分期调度是十分必要的。收集并确定了影响溪洛渡水库汛期分期的水文气象因素,建立了基于熵权的模糊集对分析法,利用该方法将溪洛渡水库的汛期划分为次汛期、过渡期与主汛期,最后与模糊集分析法、集对分析法进行了对比分析。研究结果表明,熵权模糊集对分析法简单实用,能客观反映金沙江流域暴雨洪水特性对汛期的影响,汛期分期成果合理,与模糊集分析法、集对分析法的分期结论基本一致。提出的熵权模糊集对分析法用于汛期分期合理可行,为水库汛期动态汛限水位的制定提供了参考依据。
Xiluodu Hydroproject is an important part of the Yangtze River flood-control system.It is necessary to explore the reasonable flood season staging of Xiluodu Reservoir and its stage regulation for improving the flood control capacity and utilizable benefit,and realizing the safe utilization of flood water resource in the Jinsha River basin.The hydrometeorological factors affecting the flood season staging of Xiluodu Reservoir are collected and determined in this paper,and then a fuzzy set pair analysis method based on entropy weight is established.The flood season of Xiluodu Reservoir is divided into secondary flood season,transitional flood season and main flood season by using the established method.Finally,the results of flood season staging from the established method,the fuzzy set analysis method and the set pair analysis method are compared and analyzed.The comparison shows that the fuzzy set pair analysis method based on entropy weight is simple and practical,and can objectively reflect the impact of the characteristics of the rainstorm and flood in the Jinsha River basin in the flood season.The results of the flood season staging are basically consistent with the conclusions of the fuzzy set analysis method and the set pair analysis method,which proves that the staging is reasonable.The proposed fuzzy set pair analysis method based on entropy weight is reasonable and feasible in flood season staging,which provides the reference for the establishment of dynamic limited flood water level in reservoir flood season.
作者
刘浅奎
王文圣
余思怡
王宁
LIU Qiankui;WANG Wensheng;YU Siyi;WANG Ning(School of Water Resource and Hydropower,Sichuan University,Chengdu 610065,China)
出处
《水利水运工程学报》
CSCD
北大核心
2020年第6期16-22,共7页
Hydro-Science and Engineering
基金
国家自然科学基金资助项目(51679155)。
关键词
溪洛渡水库
汛期分期
权重
熵
模糊集对分析
Xiluodu Reservoir
flood season staging
weight
entropy
fuzzy set pair analysis
