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本文描述带尾水调压井的水力装置系统大、小波动过渡过程基于刚性理论内特性解析的数值计算和稳定性分析。于1990年10月在带尾水调压井的镜泊湖水电厂进行了14种情况的现场动态特性试验,验证了所列方程组的准确性。将本理论应用于带尾水调压井的大朝山水电站工程,经计算分析证明,将原设计调压井面积减小50%仍可满足工程安全稳定运行的实际需要。本文对工程应用具有实际意义并带来较大经济效益。
This article describes the numerical calculation and stability analysis of the large and small fluctuation process of hydraulic system with tail water surge tank based on the analysis of the characteristics of the rigid theory. In October 1990 in Jingpohu hydropower plant with tailing surge shaft, 14 kinds of on-site dynamic characteristics tests were carried out to verify the accuracy of the listed equations. Applying this theory to the Dachaoshan hydropower project with tail water surge shaft, it is proved through calculation and analysis that reducing the original design surge shaft area by 50% can still meet the actual needs of safe and stable operation of the project. This article has practical significance for engineering application and brings greater economic benefits.