An optimization-simulation model for real time operation of a multireservoir water supply system /
In this work, a methodology is developed to assist the
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| Format: | Thesis Book |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
1997.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=736823851&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | In this work, a methodology is developed to assist the process of planning and management of a multireservoir water supply system. The methodology is based on stochastic dual dynamic programming (SDDP). SDDP mainly uses optimization and simulation techniques. The model represents the water supply system as a network of nodes and arcs. SDDP gives guidelines for system operation in such a way that the model considers maximizing not only the present benefit but also the future net benefit of the system. The development of the model has two phases. In the first phase, constraints are generated to obtain an approximation for the future net benefit function. These constraints are called Bender's cuts. The Bender's cuts let the model see to the future, i.e. maximizing the future net benefit. In the second phase, the set of Bender's constraints is used for the operation of the system in real time for a given vector of initial reservoir volumes and forecasted inflows. The methodology was applied to the Caracas water supply system, which is formed by seven reservoirs and four direct intakes. It is proven that it is more efficient to operate the multireservoir system under the SDDP guidelines than under other popular multireservoir simulation techniques. |
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| Item Description: | Vita. "Major Subject: Civil Engineering". |
| Physical Description: | xii, 189 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references: pages 142-145. |