基于改进NSGA-Ⅱ算法的水资源多目标优化配置  

Multi-Objective Optimal Allocation of Water Resources Based on Improved NSGA-Ⅱ Algorithm

作　　者：吴云 曾超 杨侃[2] 俞悦 何琦 仲晓林 WU Yun;ZENG Chao;YANG Kan;YU Yue;HE Qi;ZHONG Xiaolin(Shanxi Conservancy Technical Institute,Yuncheng 044004,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Yangzhou Survey Design Research Institute Co.,Ltd.,Yangzhou 225000,China)

机构地区：[1]山西水利职业技术学院,山西太原044004 [2]河海大学水文水资源学院,江苏南京210098 [3]扬州市勘测设计研究院有限公司,江苏扬州225000

出　　处：《人民黄河》2020年第5期71-75,共5页Yellow River

基　　金：山西省水利科学技术计划项目。

摘　　要：山西省作为资源性缺水大省,对水资源进行优化配置是缓解用水紧张和提高社会经济发展水平的有效手段。通过建立山西省"大水网"晋中-长治供水区水资源多目标优化配置模型,对NSGA-Ⅱ算法在约束条件处理和遗传操作越界处理方面进行改进,并用于模型的求解,得出Pareto最优解集,最后从不同的侧重点挑选出3个不同的优化配置方案,以供决策者根据实际需要进行选择。综合来看,改进NSGA-Ⅱ算法较传统NSGA-Ⅱ算法更有效可行,配置结果合理。Shanxi Province is a province of shortage of water resources, so the optimal allocation of water resources is an effective way to alleviate water shortage and improve the level of social and economic development. In this paper, a multi-objective optimal allocation model of water resources in Jinzhong-Changzhi water-supply region of Shanxi water network was established. The NSGA-Ⅱ algorithm was improved in terms of constraints processing and genetic operation crossing processing and was used to solve the model to obtain Pareto optimal solution set. Finally, three different optimal allocation schemes were selected from different emphasis for decision makers to choose according to actual needs. To sum up, this paper has a certain guiding significance for the optimal allocation of water resources under the background of the construction of Shanxi water network.

关 键 词：水资源优化配置 多目标优化模型 改进NSGA-Ⅱ算法 山西“大水网” 

分 类 号：TV213.4[水利工程—水文学及水资源]