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抽水蓄能电站工况转换频繁,水力过渡过程关乎整个电站的安全运行和供电品质,一管双机甩负荷是大波动水力过渡过程,对其进行试验分析具有重要意义。为此,分析多个抽水蓄能电站一管双机甩负荷试验数据,统计了转速和蜗壳压力上升率范围,为以后制定相关标准和调节保证计算提供参考;并分析了某抽水蓄能电站一管双机甩50%、75%、100%负荷的试验结果,结果表明该电站转速和蜗壳压力上升率与其他统计电站相近,可为其他电站的类似试验提供参考。
Pumped storage power station conversion frequently, the hydraulic transition process is related to the safe operation of the entire power plant and power quality, a double tube load rejection is a large-wave hydraulic transition process, the experimental analysis of great significance. Therefore, the data of one-pipe double-unit load shedding test of multiple pumped-storage plants are analyzed, and the range of the rate of increase of the rotating speed and the pressure of the volute is counted, which can provide reference for the future development of the standard and adjustment guarantee calculation. The test results of 50%, 75% and 100% load rejection of a single twin-tube machine show that the rate of rise of the power station and the pressure rise of the volute are similar to those of other statistical power stations and can provide reference for similar tests of other power stations.