Development of a Reservoir Control Method with the Aid of Unsteady Flow Dynamics Simulation

Abstract A method of designing a reservoir control system which uses unsteady flow dynamics simulation is described. The effect of water level fluctuation on reservoir control can only be evaluated through analysing unsteady flow dynamics. A numerical analysis approach is chosen because of the difficulty in solving the unsteady flow dynamics equation analytically. A special purpose FORTRAN simulation system named RCSS, i.e. River Control Simulation System, is developed. In this system the numerical analysis program of the unsteady flow dynamics equation is installed. With the aid of RCSS, a new reservoir control method is derived. This method makes it possible to maintain water volume at a desired value. Kalman filters are used to get the closest estimate of water volume due to corruption of water level data by various noises. This newly developed control method has proven effective in reservoir control.