摘要
以漳河流域岳城水库为例,选取30场实测洪水,分析了洪水过程相关统计特性,确定了能反映洪水特性的因子指标。构建了典型洪水模糊模式识别模型,采用可能度法计算各影响指标权重、运用最小级别变量特征值原则对典型洪水模糊模式进行优选,根据优选的典型洪水进行了设计洪水计算。实例结果表明,模糊模式识别模型计算结果优于传统方法。
Taking the Yuecheng Reservoir in Zhanghe Basin as an study case,30 series of observed flood data are selected to analyze correlative statistic characteristics of flood hydrograph and the influence factors are determined,which reflect the special characteristics of flood hydrograph.Then a fuzzy pattern recognition（FPR） model of typical flood hydrograph（TFH） is established.The range number-possibility degree（RNPD） method is applied to calculate the weight of influence factors and the principle of minimum eigenvalue of grade variable（MEGV） is used to select optimal fuzzy scheme of TFH.Finally,the design flood is calculated with the TFH.The results show that the proposed method is better than the traditional method.
出处
《水电能源科学》
北大核心
2011年第3期54-56,196,共4页
Water Resources and Power
基金
水利部公益性行业科研专项经费基金资助项目(200901030
201001002)
水利部科技推广计划基金资助项目(TG1007)
吉林省科技发展计划基金资助项目(20100406)
关键词
典型洪水
影响指标
模糊模式识别
模糊优选
typical flood
influence factor
fuzzy pattern recognition
fuzzy optimization
