Study on joint-dispatching of medium and small floods in cascade reservoirs(with hydropower stations) in Yuanshui River Basin

Based on the engineering requirements of Sanbanxi-Baishi cascade reservoirs (with hydropower stations) in Yuanshui River for dispatching medium and small floods,the paper analyzes the flood prevention status of cascade reservoirs(with hydropower stations) and the boundary conditions for joint-dispatching of medium and small floods,studies and puts forward a variety of regulation measures for solving practical engineering problems,carries out technical and economic comparison,and determines the recommended measures.The joint-dispatching scheme of medium and small floods of cascade reservoirs(with hydropower stations) is proposed. The simulation results of measured flood show that the proposed scheme is feasible and operable, which can meet all boundary conditions of medium and small floods dispatching of cascade reservoirs (with hydropower stations), and provide effective technical guarantee for its safe and economic operation.