Multi-Objective Optimal Operation of the Inter-Basin Water Transfer Project Considering the Unknown Shapes of Pareto Fronts

被引:7
|
作者
Xu, Jianjian [1 ,2 ]
Bai, Dan [1 ]
机构
[1] Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, Peoples R China
[2] Shanxi Prov Inst Water Resources & Elect Power In, Xian 710001, Peoples R China
基金
中国国家自然科学基金;
关键词
AR-MOEA; reservoir optimization operation; unknown shapes of Pareto fronts; Hanjiang to Wei River Water Diversion Project; PARTICLE SWARM OPTIMIZATION; EVOLUTIONARY ALGORITHM; RESERVOIR OPERATION; YANGTZE-RIVER; DECOMPOSITION; IMPACTS; RESOURCES; SELECTION; SYSTEM; MOEA/D;
D O I
10.3390/w11122644
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Studies have shown that the performance of multi-objective evolutionary algorithms depends to a large extent on the shape of the Pareto fronts of the problem. Although, most existing algorithms have poor applicability in dealing with this problem, especially in the multi-objective optimization operation of reservoirs with unknown Pareto fronts. Therefore, this paper introduces an evolutionary algorithm with strong versatility and robustness named the Multi-Objective Evolutionary Algorithm with Reference Point Adaptation (AR-MOEA). In this paper, we take two water conservancy hubs (Huangjinxia and Sanhekou) of the Hanjiang to Wei River Water Diversion Project as example, and build a multi-objective operation model including water supply, ecology, and power generation. We use the AR-MOEA, the Non-dominated Sorting Genetic Algorithm II (NSGA-II), the Multi-Objective Evolutionary Algorithm based on Decomposition (MOEA/D) and the Indicator-Based Evolutionary Algorithm (IBEA) to search the optimal solutions, respectively. We analyze the performance of four algorithms and the operation rules in continuous dry years. The results indicate that (1) the AR-MOEA can overcome the difficulty of the shape and distribution of the unknown Pareto fronts in the multi-objective model. (2) AR-MOEA can improve the convergence and uniformity of the Pareto solution. (3) If we make full use of the regulation ability of the Sanhekou reservoir in the dry season, the water supply for coping with possible continuous dry years can be guaranteed. The study results contribute to the identification of the relationship among objectives, and is valued for water resources management of the Hanjiang to Wei River Water Diversion Project.
引用
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页数:18
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