碗牛坝水电站突甩负荷过渡过程数值计算

以有压管道非恒定流微分方程组为基础 ,结合碗牛坝水电站具体边界条件 ,建立了基于特征线法的描述水电站突甩负荷过渡过程的数值模型 ,全面细致地模拟出了该电站突甩负荷过渡过程中任一时刻压力管道任一断面各水力要素和机组各工况参数的瞬变规律 ,为该电站的设计及安全稳定运行提供了技术依据 ,对类似工程也有一定的参考价值。

Numerical calculation of the transients with sudden load rejection in Wanniuba Water Power Station

Based on the differential equations of the transient flow in conduit under pressure and combined with the specific boundary condition of Wanniuba Water Power Station,a numerical model is constituted with characteristic method,which is used to simulate the transients of sudden load rejection in water power stations.It accurately simulates the transient rules of the hydraulic factors in the section of conduit under pressure and the operating parameters of the hydroelectric generating set.The reference on technology is given for the design and safe and steady operation.Moreover,the numerical model constituted in the paper will certainly have a reference value to similar water power stations.