下迷宫压力脉动对抽水蓄能机组稳定性的影响分析OA北大核心CSCDCSTPCD
Influence Analysis of Lower Labyrinth Pressure Pulsation for Stability of Pumped-storage Unit
水泵水轮机组的运行稳定性对抽水蓄能电站的安全高效运行至关重要.对广蓄A厂抽水蓄能机组发电工况进行了稳定性试验,深入分析了各工况下迷宫压力脉动、顶盖振动和水导轴承摆度信号之间的关系.结果表明:转频、转轮叶片通过频率及尾水管内的低频旋转涡带是引起下迷宫压力脉动的关键频率;下迷宫压力脉动信号与顶盖振动、水导轴承摆度信号高度相干,对抽水蓄能机组水平和垂直两个方向的振摆都有重要影响.
Pumped-storage power station was widely concerned since its important role.The running stability of the pump-turbine unit as the core component was essential to the safe and stable operation of the plant.The stability tests were conducted under working condition of hydroelectric generating set.The test data were analyzed,including the lower labyrinth pressure pulsation,the guide bearing swing and the head cover vibration.It was revealed that the main f…查看全部>>
姚泽;支发林;阎宗国;黄青松;毕慧丽;王正伟
广东电网公司电力科学研究院,广州510080清华大学热能工程系,北京100084中国农业大学水利与土木工程学院,北京100083广东电网公司电力科学研究院,广州510080清华大学热能工程系,北京100084清华大学热能工程系,北京100084
能源科技
抽水蓄能机组下迷宫压力脉动振摆相干性分析
Pumped-storage unit Labyrinth pressure fluctuation Vibration and swing Coherence analysis
《农业机械学报》 2014 (11)
水泵水轮机转轮湿模态和考虑稳态与瞬态水力激励的全寿命模型研究
134-138,110,6
国家自然科学基金资助项目(51279083)
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