The Study And Implementation Of The Safety And Economic Operation In Hydropower Station

The economic operation of hydropower station is a method to excavate latent energy of reservoirs and equipments.Also it's a method to use the water resource sufficiently and decrease the energy loss.Its economic profits and social profits are remarkable.As a entire optimization method used in the operation of hydropower, the dynamic programming is consummate not only in theory but also in application.The hydropower station' economical operation involves space optimization and time-space optimization.In space optimization, the principle of equal-tiny increment is applied first.This classical method is used while the curve of the equal-tiny increment is raised.But in practice the curve of the equal-tiny increment is not always raised because of many uncertain factors.Under the guidance of the dynamic programming, the water-turbine can avoid entering the range of danger zone in the operation.And it is not only fit for all range of load but also can solve the time-space optimization completely. Beginning with the mathematical modal, this paper introduces the realization of the economical operation in hydropower stations and relative important methods and technique based on the dynamic programming aimed at the exigent problems of safety in operation of ZheLin Hydropower Station.Based on the mathematical modal and combined with the actual condition, projects are raised, discussed and compared in application for the sake of solving crucial problems such as the confirmation of water potential difference, the selection of states of the start and close combination of the water-turbine, the disposal of the stabilization of the water-turbine and the doable are adopted. According to the mathematical modal and the projects for solving pivotal problems, important units and programs of validation are compiled in the process of the project.By comparing and analyzing the results coming from the programs of validation, the adopted schemes are approved to be reasonable and doable.At last the developmental directions are also presented about some mothed.