电站枢纽综合出力系数计算及对调度过程模拟的影响

Calculation of Comprehensive Power Output Coefficient of a Hydropower Station and Its Effects on Simulating the Regulation Process

梯级水电站优化调度是当前大型水电枢纽研究的重要课题,调度方案的优劣对水电站发电效益影响很大。在进行调度方案建模过程中,出力计算是其中的核心问题之一,在以往的枢纽优化调度研究中,优化算法的应用研究占绝对的比重,但大都没有对其中建模的细节有过详细的描述,通过对三峡及葛洲坝梯级枢纽运行数据进行分析,给出枢纽出力系数的相关关系,以期对建模及求解提供较为准确的基础数据,同时,采用机组出力系数关系式对出力计算进行模拟,并对结果进行了初步的分析。

Optimal operation of the cascaded hydropower station is an important subject for the research on the large hydropower com- plex, and the quality of the operation scheme can affect significantly the generation benefits of the hydropower station. During the model- ing of the operation scbeme, calculation of the power outputs is one of the core works. Previous research on the optimal operation of power plants focused on the application of the optimal algorithms,and the development of the model was seldom described. This paper presents the calculations of the power output coefficients of the Three Gorge and Gezhouba power plants based on their operation data, which can provide the accurate data for future modeling of the operation scheme. Moreover, the power outputs for the two plants have been simulated using the proposed new method and the preliminary analysis of the power outputs results is reported.