Future Horizons for Optimal Operation of Mosul Dam Reservoir

Abstract

In this study, The Discrete Differential Dynamic Programming (DDDP) has been applied to the operation of Mosul dam reservoir on Tigris river, North of Iraq. The simulation technique (SM) has been used to evaluate the results obtained from the (DDDP) model. The aim of this study is to obtain the present and future optimal monthly reservoir operation policies for the years (2007, 2017, and 2027) through fulfilling the irrigation requirements of Jazira Irrigation Project and water supply requirements according to different operation states. The states included the operation of Northern only, Northern and Eastern; and the Northern, Eastern and Southern Jazira Irrigation Projects for minimum annual inflow in all states. The results indicated water deficit occurrence with the second and third states. For optimization model, the water deficits were distributed over long periods which helped to minimize the penalty, and the reservoir storages were within the upper and lower operating storage limits. Whereas for simulation model the water deficits were concentrated within short periods and the reservoir storages declined below the lower operating storage limit.