Journal
WATER RESOURCES MANAGEMENT
Volume 25, Issue 2, Pages 431-448Publisher
SPRINGER
DOI: 10.1007/s11269-010-9707-8
Keywords
Refill operation; Multi-purpose reservoir; Flood seasonality; Flood control; Rule curve; Simulation-optimization-test framework; Hybrid multi-objective genetic algorithm
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Funding
- Ministry of Water Resources [200701015]
- National Key Technologies Research and Development Program of China [2008BAB29B09]
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This paper focuses on deriving optimal refill rules for a multi-purpose reservoir, and aims to maximize utilization benefits under the condition of flood control safety. The entire flood season is divided into multiple sub-seasons (i.e. pre-flood season, main-flood season and post-flood season). By advancing the start of the refill period to the beginning of the post-flood season, seasonal design flows during the new refill period are estimated. A multi-objective refill operation model is proposed by combining flood control and conservation together. The simulation-optimization-test framework and hybrid multi-objective genetic algorithms are developed and used to optimize the rule curves. China's Three Gorges Reservoir is selected as a case study and the application results show that the proposed model can increase the hydropower generation by 17.4%, decrease spilled water by 43.9%, and improve the refill probability greatly without decreasing the flood control standard and navigation probability during the refill period.
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