Abstract：Based on measured data from one pumped storage power station,stability parameters of pumped storage unit and ball valve have been analyzed by short time Fourier transform.Frequency changes of the ball valve and unit during ball valve closing in dynamic water conditions have been summarized.The research shows that the unit and ball valve vibrations involve a 100 Hz component in stable running condition.And the 100 Hz component mainly results from two-fold blade passing frequency not from generator polar frequency; the two-fold blade passing frequency component propagates upward and aggravates the vibrations of unit and ball valve.
张飞1，唐拥军1,王国柱2,邓磊1. 球阀动水关闭过程中球阀与机组稳定性分析[J]. 振动与冲击, 2017, 36(8): 244-252.
ZHANG Fei1,TANG Yongjun1,WANG Guozhu2,DENG Lei1. Stability analysis of ball valves and units in ball valve dynamic water closing process. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(8): 244-252.
[1] 中华人民共和国国家质量监督检验检疫总局，中国国家标准化管理委员会．GB/T14478-2012 大中型水轮机进水阀基本技术条件[S]．北京：中国标准出版社，2012．
China Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standard Administration of the People's Republic of China．GB/T14478-2012 Fundamental technical requirements for large and medium inlet valves of hydraulic turbine[S]．Beijing: China Standard Press, 2012．
[2] 林恺，蒋寅军．惠州抽水蓄能电站球阀动水关闭试验研究[J]．湖南电力，2011，31(4)：23-26．
Lin Kai, Jiang Yinjun. Test and research on spherical valve dynamic closing of Huizhou Pumped Storage Power Station[J]. Hunan Electric Power, 2011, 31(4): 23-26(in Chinese)．
[3] 张春，杨建东．高水头抽水蓄能电站球阀与导叶联动的关闭规律研究[J]．水电能源科学，2011，29(12)：128-131．
Zhang Chun, Yang Jiandong. Study on linkage closing rule between ball valve and guide vane in high speed pumped storage power station[J]. Water Resources and Power, 2011, 29(12): 128-131(in Chinese)．
[4] 李小芹，常近时等．抽水蓄能电站中球阀协同导叶关闭的水力顺便过程控制方式[J]．水利学报，2014，45(2):220-226．
Li Xiaoqin, Chang Jinshi, et al,. Hydraulic transient controlling rules coupled with ball-valve and guide vane in pumped storage station[J]. Journal of Hydraulic Engineering, 2014, 45(2): 220-226 (in Chinese)．
[5] 冯为民，肖克宇，宋立．特大口径水轮机进水球阀最优动水关闭规律及数值模拟[J]．武汉大学学报（工学版），2009，42(3)：287-291．
Feng Weimin, Xiao Keyu, Song Li. Discipline of hydrodynamic closure on super-large diameter intake ball valve of hydro-turbine and numerical simulation[J]. Engineering Journal of Wuhan University, 2009, 42(3): 287-291 (in Chinese)．
[6] 韩伶俐．对抽水蓄能电站球阀参与机组甩负荷流量调节的几点看法[J]．大电机技术．2013，2：47-51．
Han Lingli. Opinions on ball valve participating in regulation guarantee when pump storage unit rejecting load[J]. Large Electric Machine and Hydraulic Turbine, 2013, 2: 47-51 (in Chinese)．
[7] Ming-Jyh Chern, Chin-Cheng Wang, Chen-Hsuan Ma. Performance test and flow visualization of ball valve[J]. Experimental Thermal and Fluid Science. 2007, 31: 505-512．
[8] Van Lookeren Campagne C, Nicodemus R, De Bruin G J, et al. A method for pressure calculation in ball valves containing bubbles[J]. Journal of Fluids Engineering, 2002, 124(3): 765-771.
[9] Van Lookeren Campagne C, Nicodemus R, De Bruin G J, et al. A method for pressure calculation in ball valves containing bubbles[J]. Journal of Fluids Engineering, 2002, 124(3): 765-771.
[10] 唐向红，李齐良．时域分析与小波变换[M]．北京：科学出版社，2008：45-46．
Tang Xianghong, Li Qiliang. Time domain analysis and wavelet transform[M]. Beijing: China Science Press, 2008: 45-46 (in Chinese)．
[11] 张孝远，张新萍，苏保平．基于最小最大核K均值聚类算法的水电机组振动故障诊断[J]．电力系统保护与控制，2015，43（5）：27-34．
Zhang Xiaoyuan, Zhang Xinping, Su Baoping. Vibrant fault diagnosis for hydro-turbine generating unit using minmax kernel K-means clustering algorithm[J]. Power system protection and control, 2015, 43(5):27-34 (in Chinese)．
[12] Doerfler P．On the role of phase resonance in vibrations caused by blade passage in radial hydraulic turbomachines [C]．IAHR Section Hydraulic Machinery, Equipment, and Cavitation, 12th Symposium (Stirling, 1984)．
[13] 尹铫，刘碧龙，常道庆等．张河湾蓄能电站厂房噪声与振动调查[J]．噪声与振动控制，2012，10（S1）：157-160．
Yin Yao, Liu Bilong, Chang Daoqing,et al．An investigation for noise and vibration of Zhanghewan pumped storage station[J]．Noise and vibration control, 2012(S1): 157-160 (in Chinese)．
