Abstract

AbstractOptimizing and raising flood limited water levels can significantly improve the flood resources utilization and increase the comprehensive benefit. For those multipurpose reservoirs in sediment-laden river, flood limited water level optimization process is a multi-objective and complex system task, where the considering of characteristic by stages enhances the complexity. In this research, to solve the optimization problem of flood limited water levels of reservoirs by stages in sediment-laden river, the recognition methods of multiple points were integrated and modified; the optimal model and its solving method were developed. Taking the Xiaolangdi Reservoir during the normal period as case study, the flood control operation schemes for the Xiaolangdi reservoir were built, the multiple points of the middle reaches and lower reaches of Yellow River were recognized, the developing and solving schemes for the optimal models for seasonal flood limited water levels of reservoirs in sediment-laden rivers were shown, which can technically support for reservoirs operation in flood seasons.KeywordsMultipurpose reservoirs in sediment-laden riverMultiple dividing points of flood seasonMulti-object optimizationXiaolangdi reservoir

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