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为掌握某抽水蓄能电站~#2机组的运行稳定性情况,分别在310、320、330m水头下对该机组进行现场稳定性试验,每个试验水头下的试验工况包括了发电工况下从空载到额定负荷间阶梯式选取的13个负荷工况及抽水工况,分析了机组在各负荷工况下机架振动、导轴承摆度、水流压力脉动的变化规律及内在联系,根据变负荷试验数据将该机组在不同试验水头下的运行区域划分为禁止运行工况区、许可运行工况区和稳定运行工况区,为机组安全运行提供了依据。
In order to grasp the operational stability of a pumped-storage power plant ~ # 2 unit, site stability tests were carried out at 310, 320 and 330m water heads respectively. The test conditions under each test head included the power generation conditions From the no-load to the rated load of the ladder between the selected 13 load conditions and pumping conditions, the unit under various load conditions rack vibration, guide bearing swing, pressure fluctuations and the inherent relationship between flow, according to The variable load test data divides the operating area of the unit under different test heads into prohibited operating conditions, permitted operating conditions and stable operating conditions, which provides the basis for the safe operation of the unit.