抽水蓄能电站运行工况数字化动态规划模型分析

A digital dynamic planning model for pumped-storage hydroelectricity operation

为了优化抽水蓄能电站可逆水轮机的转速,同时提高系统运行的稳定性。研究过程针对电站阻抗式调压室、上游水库、下游水库及水轮机组进行数字化拟合;将拟合结果作为参数,深化处理工况目标、建立平衡约束条件、开展模型等效简化。最终构建了动态规划模型,再利用Fluent软件模拟相关模型的实用效果,将VOF数值模拟方法作为对照组。结果显示,数字化动态规划模型优于VOF模型,能够有效改善可逆水轮机的工况参数。

In order to optimize the rotational speed of the pumped-storage hydroelectricity reversible turbine and improve the stability of the system operation,the impedance surge chamber,upstream reservoir,downstream reservoir and hydraulic turbine are fitted by digital method in the research process,and the fitting results are taken as parameters.Finally,the dynamic programming model is constructed,and the practical effect of the model is simulated by Fluent software,the VOF numerical simulation method is used as the control group.The results show that the digital dynamic programming model is superior to the VOF model and can effectively improve the operating parameters of reversible turbine.