水电能源蓄能模型分析与计算

Analysis and Calculation for Storage Energy Model of Hydropower Plant

探讨水电站水库水电能量转换规律,将水库水体分成长方形水体s1、梯形水体tr、长方形水体s2及三角形水体t4级,利用微元分析法,建立水库水电站发电模型。该发电模型由水体动能、势能、压能和库容压能构成。应用于某梯级水电站的仿真结果表明,模型能有效提高水电站群的年平均发电量,长方形水体s1、梯形水体tr、压力引水管倾角α的合理选择对年平均发电量有很大影响。模型可为未来水电站的运行管理与设计优化提供新的理论支持。

The principle of the hydroelectric energy conversion for reservoir was discussed in. The reservoir water was divided into four parts： rectangle water s1, trapezoid water tr, rectangle waters s2 and triangle t. The generation model which composes of water kinetic energy, water potential energy, water pressure energy and reservoir pressure energy were obtained based the analytic way of differential element. The simulation results illustrate that the model can effectively improve the annual average generation output for the hydropower stations, the optimized consult of rectangle water sbtrapezoid water tr and the angle of penstock a plays important role in annual average generation output（AAGO）. The model can offer the new academic support in management and the optimization design of hydropower plant.