抽水蓄能电站过渡过程双软件反演分析

抽水蓄能电站作为电网的有效调节工具,需要频繁地通过过渡过程工况转换等来满足电网需求,过渡过程的稳定性是影响安全运行及电网质量的重要因素.目前业内要求在电站建设的每个阶段均需要根据当前阶段的具体参数开展过渡过程计算分析.为提高计算分析的准确性,对过渡过程现场实测数据与计算数据的对比分析是非常有必要的.通过这种反演分析方法对电站过渡过程实测数据与计算软件的结果进行了详细对比,验证了前期广泛采用的两款过渡过程软件SIMSEN及浪淘石计算结果的可靠性,形成了适用于抽水蓄能电站的过渡过程反演分析技术,并总结了造成计算与实测之间差异的主要原因.研究成果可为进一步促进过渡过程计算的准确性,保障电站过渡过程的安全性提供有效参考.

Back Analysis Computation with Two Numerical Software for Pumped-storage Power Station Transient Process

Pumped storage power stations play a major role in the grid regulation due to their flexible.The pumped turbine is subjected to start up,shutdown or other condition transformations to meet the grid needs.Consequently,the transient process stability is therefore paramount for the power station safety.The transient process computations should be conducted in each stage of power station construction.To further improve the computation accuracy,it is necessary to analyze the differences between the results from site test and numerical simulation.In this paper,the field measurement data and the calculated results from two well-known software SIMSEN and LANG TAOSHI were compared in detail,the back analysis technology suitable for Pumped storage power station transition process was formed,and the reliability of the numerical results were verified.This research can provide an effective reference for further promoting the accuracy of the transition process prediction and ensuring the transition process safety in the Pumped-storage power station.