发电系统中多蓄能电站的建模

Model of multi-pumped-storage plants in generation system

针对电力系统中蓄能电站数目不断增多的情况 ,在单个抽水蓄能电站建模的基础上 ,建立了发电系统中多蓄能电站的随机生产模拟模型。该模型考虑了各蓄能电站的个体特征 ,因而与通常的将多个蓄能电站合并为一个蓄能电站的方法相比 ,文中提出的新模型有利于更细致地模拟系统运行状况 ,程序可确定各蓄能电站的最优发电量和发电位置 ,从而能够更精确地评估电力系统的可靠性和经济性。通过算例验证了模型的有效性。利用该算法开发的软件可用于包含多个蓄能电站的实际电力系统的效益评估 。

This paper presents the model and algorithm of probabilistic production simulation for power system including multiple pumped-storage plants. Character of individual pumped-storage plant is considered so as to evaluate the system reliability and it's economical efficiency more precisely. Compared to the general mergeing method the algorithm presented can both simulate the system operation mode more accurately and obtain every plant's optimal generation energy and it's generation position in load curve. The software developed is verified by sample system. Results show that the algorithm and software are available. The software can be used to not only evaluate benefits of power system including multiple pumped-storage plants but also optimize operation and dispatching of pumped-storage plants.