丁伟

个人信息Personal Information

副教授

博士生导师

硕士生导师

主要任职:无

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:水利工程系

学科:水文学及水资源

办公地点:综合实验4号楼411

联系方式:0411-84707904

电子邮箱:weiding@dlut.edu.cn

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Bi-Level Optimization for Determining Operating Strategies for Inter-Basin Water Transfer-Supply Reservoirs

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论文类型:期刊论文

发表时间:2017-11-01

发表刊物:WATER RESOURCES MANAGEMENT

收录刊物:Scopus、SCIE、EI

卷号:31

期号:14

页面范围:4415-4432

ISSN号:0920-4741

关键字:Bi-level optimization; Operating strategy; Water transfer-supply reservoir; Initial solution; Biliu River reservoir

摘要:Operating strategies for inter-basin water transfer-supply reservoirs play an important role in assisting in the decision-making process of effectively transferring and supplying water. This article presents a bi-level optimization model for determining operating strategies for inter-basin water transfer-supply reservoirs. The bi-level model avoids the structural description limitation of traditional optimization models, which normally optimize all of the variables simultaneously, by exactly describing the leader-follower framework used in water transfer-supply. The bi-level optimization problem was solved by using Adaptive Genetic Algorithm (AGA) and was compared with the traditional optimization model. Furthermore, to improve the solution procedure, two methods were used to improve the initial solution of the bi-level model, both based on probability description methods and chaos optimization. The method was applied in a case study of Biliu River reservoir, which is located in Liaoning Province, Northeast China. The results demonstrated that the bi-level model mathematically represents the hierarchical structure of inter-basin water transfer-supply operating strategies, but it requires more time than traditional models to find optimal solutions. Thus, this article proposes methods to improve the solution procedure. The results showed that the proposed bi-level model with the improved solution procedures achieves better reservoir operation performance and shorter calculation times than the general solution procedure when the same decision variables are considered. The amounts of transferred water and abandoned water decreased by 3.8% similar to 9.3% and 5.4% similar to 12.1%, respectively, thus representing an improvement in the efficiency of water transfer. Moreover, the calculation time was decreased by approximately 60%, relative to that of the general solution procedure.