Research On Long-mid Term Optimal Dispatching Of Hydropower System In Wujiang Rivr

With the development large-scale cascade hydroelectric stations and embedment of electric system reform , electric network mange mode will be formed. In this new position, it is a key problem that how to develop the optimal dispatching of Wujiang river cadcade hydroelectric stations. Combined with the practical situation, the problems of united dispatching of reservoir system in Wujiang river is studied deeply in this paper by using the theory and method of system science, the objective function and method of operation of reservoir system is purposed, the power generation scheme of 2005 year is made to instruct the operation of cascade reservoirs. The main research content and result are as follows:(1)The paper introduces the urgent necessity for research. The study content and methodology of this paper are put forward;(2) According as the characteristic and request of the long-mid term of optimal dispatching and the made of power generation scheme of hydroelectric stations, maximizing energy output and energy storage models are built, and the conditions are pointed out;(3) Based on deep analysis of the advantages and disadvantages of methods and combined practical situation of the Wujiang river cascade reservoirs, the hybrid DP methodand the large-scale system decomposition-coordination method which are used for the maximizing power output model and the fast distribution and method and the dynamic search method which are used for the maximizing energy storage model are put forward;(4) The 2005 year power scheme of Wujiang river cascade stations is made, and it is put into practice.