梯级水库群水沙联合调度的多目标转化研究
发布时间：2018-09-10 17:29
【摘要】：为了改善黄河上游宁蒙河段的淤积现状,本文利用上游龙羊峡、刘家峡水库联合运行调度,人造可控洪峰以冲刷河道。首先分析了水沙调控的最佳时机、构建了水沙调控指标体系;其次,建立了多目标的水沙调控模型,采用改进带精英策略的快速非支配排序遗传(NSGA-Ⅱ)求解模型,量化了丰水年或偏丰水年的水沙调控成果;再次,以四维矢量坐标系代表各调控目标,对不同年份的水沙调控成果进行敏感性分析,阐明了调控流量、供水等变量对各调控目标的影响;最后,揭示了各调控目标之间的相互转化关系。研究成果对开展黄河上游水沙调控具有重要的指导意义。
[Abstract]:In order to improve the siltation status of the Ningmeng reach in the upper reaches of the Yellow River, this paper uses the upper reaches of Longyang Gorge and Liujiaxia Reservoir to operate and dispatch jointly, and artificial controllable Hong Feng is used to wash the river course. Firstly, the optimal timing of water and sediment regulation is analyzed, and the index system of water and sediment regulation is constructed. Secondly, the multi-objective model of water and sediment regulation is established, and the NSGA- 鈪，
本文编号：2235126
[Abstract]:In order to improve the siltation status of the Ningmeng reach in the upper reaches of the Yellow River, this paper uses the upper reaches of Longyang Gorge and Liujiaxia Reservoir to operate and dispatch jointly, and artificial controllable Hong Feng is used to wash the river course. Firstly, the optimal timing of water and sediment regulation is analyzed, and the index system of water and sediment regulation is constructed. Secondly, the multi-objective model of water and sediment regulation is established, and the NSGA- 鈪，
本文编号：2235126
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2235126.html
