深圳抽水蓄能电站发电电动机下机架18倍频振动分析

Analysis on 18th Harmonic Vibrations of Lower Bracket in Shenzhen Pumped Storage Power Station

动静干涉理论多用于转轮与导叶无叶区干涉现象的研究,本文创新性地将动静干涉理论应用于发电电动机下导瓦与泵油孔油流分析,合理解释了深蓄电站下机架产生18倍频振动原因,并提出了详细的处理方案,以期对后续抽蓄电站设计提供一定的借鉴。

It is common that the rotor-stator interaction （ RSI ） theory is widely used in the RSI between the guide vane and runner. In this paper, the RSI between the lower guide bearing and oil outlet was analysed, which caused the 18th harmonic vibrations of lower bracket in Shenzhen pumped storage power station. Meanwhile the structure improvement was developed, which provide with example and reference for lower bracket of the same kind.