灰色定权聚类法在水库汛期分期中的应用  

Application of Grey Fixed Weight Clustering Method for Reservoir Flood Season Staging

作　　者：蒋海艳[1] 莫崇勋[1] 魏炜[1] 刘俐[1] 姜庆玲[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004

出　　处：《水力发电》2012年第12期8-10,共3页Water Power

基　　金：国家自然科学基金资助项目(50969001);广西自然科学基金资助项目(2012GXNSFAA053199);广西大学科研基金资助项目(XBZ110592)

摘　　要：以潘家口水库为例,在分析水文灰色特性及灰色系统理论的基础上,将灰色定权聚类法运用于水库汛期分期计算中。通过选取汛期各旬为聚类对象,降雨洪水典型因子为聚类指标,主汛期为灰类,然后构造白化权函数计算各旬属于主汛期的定权聚类系数,最后根据定权聚类系数的大小将汛期各旬归类,得出潘家口水库汛前期为6月1日～7月10日,主汛期为7月11日～8月20日,后汛期为8月21日～9月30日。Taking Panjiakou Reservoir as an example, the grey fixed weight clustering method is introduced to calculate the flood season staging of Reservoir under the analysis of relationship between grey system theory and grey characteristics of hydrology. After taking every ten days during flood season as clustering objects, typical factors of rainfall and floods as clustering index and main flood season as grey category, the whitenization weight function is established to calculate the fixed weight clustering coefficient of every ten days which belonging to main flood season, and then the whole every ten days during flood season will be classified according to the magnitude of fixed weight clustering coefficient. The results show that the pre- flood season of Panjiakou Reservoir is 1st June to 10th July, the flood season is lhh July to 20th August and the after-flood season is 21st August to 30th September.

关 键 词：灰色定权聚类法 定权聚类系数 白化权函数 汛期分期 水库 

分 类 号：TV697.11[水利工程—水利水电工程]