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Research And Application Of Dispatching Flood Decision-making Support System In Digital QingJiang

Posted on:2005-08-27Degree:MasterType:Thesis
Country:ChinaCandidate:S J ZhangFull Text:PDF
GTID:2132360152968386Subject:Water Resources and Hydropower Engineering
Abstract/Summary:PDF Full Text Request
Fuzzy optimization and dynamic programming (FODP) is a method to use fuzzy theory in the process of searching best results, which is based on dynamic programming (DP). Some problems of applying the FODP model in flood operation are discussed in this paper. Also, a method of getting membership degree about a new kind of evaluation parameter, as well as the resolving method about the implementation problems is put forward. The experimental verifications with several historical Qingjiang flood data all have demonstrated the effectiveness of the proposed methods. Comparing with normal flood operation methods, the FODP method can get better results and more flexible operation-styles, which are successfully applied in the Digital Qingjiang Valley. The main innovations of the research in this paper are as follows.Membership degree functions and fuzzy limited levels of the reservoirs in flood season are given, which based on fuzzy mathematics and fuzzy theory.Creative methods and steps based on FODP model are proposed to calculate flood operation schemes.Characteristics of normal operation method and FODP operation method are discussed in detail to apply in the flood operation system in which multi operation models exist.Dispatching flood decision-making support system is developed to simulate the flood operation schemes, which works well in the actual project.
Keywords/Search Tags:cascaded reservoirs, flood operation, dynamic programming, fuzzy optimization, decision-making support
PDF Full Text Request
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