Optimization of Tarbela Dam Rule Curve for Flood Control and Maximum Power Generation

Abstract

Rule curve is a criteria guideline indicating the limiting rates of the storage and release function of a dam. An optimal rule curve synchronizing with the hydrological condition of the area is necessary for efficient dam operation. To maximize the objective function of a dam such as irrigation, flood control and power generation, a dam must be operated in a systematic cycle throughout the year in order to provide maximum power production, minimal spill water, minimum water shortage in dry seasons as well as it should be capable enough to minimize the losses caused by floods by operating efficiently with early flood warning system. This is achieved when the rule curve is optimized to the highest possible level. In this project we have generated an optimized rule curve for Tarbela Dam using different Dam Parameters with the help of MATLAB specifically for flood control and maximum power generation. We have analyzed different floods of low, medium and high intensity and carried out a comparative study between the optimized and actual rule curves of Tarbela Dam. The results clearly indicate that optimized rule curve lead to considerable reduction in flood losses vis-à-vis conservation of water for optimal power g