双排机水电站运行特性研究

Study on operating characteristic of hydropower station installed with two-row placed units

目前有关双排机水电站运行规律的研究十分缺少,现根据世界第一大双排机水电工程———李家峡水电站双排机真机试验所取得的振动与脉动原型观测资料,对双排机水电站的运行稳定性特点进行分析。分析了同一排布置的上下游机组单机运行时的差别,并着重分析了在不同负荷组合下双排机联合运行的特性,得出了一些有利于指导工程运行的结论。

At present, the studies related to the operation law of the hydropower station installed with the two-row placed hydropower units are less. The characteristics of the operation stability of such a hydropower station are analyzed based on the prototype observation data of vibration and pulsation from the real machine test on the largest hydropower project installed with two-row hy- dropower units in the world --Lijiaxia Hydropower Station ; in which the differences of the operation stabilities among the units placed in single-row are analyzed at first, and then the combined operation characteristics of the two-row units under various load- ing conditions are emphatically studied as well, furthermore, some conclusions favorable to guide the operation of the relevant project are made at last.