Abstract
In this paper a new and efficient control method based on the integration of classical proportional-derivative controller and a fuzzy logic controller proposed for real-time operation of spillway gates of a reservoir during any flood of any magnitude up to the probable maximum flood. In order to demonstrate the high performance of the proposed method, we simulate the control system using different probable overflow hydrographs. The results of the proposed control method are compared with the results of the conventional control methods. The results obtained from the simulations indicate that the proposed method exhibits high performance over the conventional reservoir flood operation with much more desirable results.