Development of dynamic programming model for optimal operation of a reservoir to generate hydropower
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Date
2018-05
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
With the rapid rate of urbanization and industrialization, it has become more important than ever in history to effectively manage the precious and scare resource, water. The optimal operation of reservoir is mandatory to manage water according to various demands. Reservoir operation implies the derivation of optimal releases with time period. In this study, a mathematical model has been developed using dynamic programming and a computer program is written for the same to determine the optimal release sequence and obtain the yearly net benefits. Equations representing the continuity, release and storage have been imposed as constraints in the model. The solution of the model yields the monthly optimal reservoir releases and yearly net benefit. The applicability of the developed dynamic programming model has been illustrated for the Tehri dam reservoir in Uttarakhand, India. The effect of varying minimum release values, turbine efficiency and selling prices of hydroelectricity has been investigated on the optimal releases and net benefits. The optimal reservoir releases and net benefits are obtained as the desired outputs for the time period of study. From the generated results, it is inferred that increased net benefits are obtained for increase in both the turbine efficiency as well the selling price.
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