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Zhang Fei, Wang Xianping. Draft cone tube pressure of pumped-storage power unit in load rejection test[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(20): 93-101. DOI: 10.11975/j.issn.1002-6819.2020.20.012
Citation: Zhang Fei, Wang Xianping. Draft cone tube pressure of pumped-storage power unit in load rejection test[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(20): 93-101. DOI: 10.11975/j.issn.1002-6819.2020.20.012

Draft cone tube pressure of pumped-storage power unit in load rejection test

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  • Received Date: June 29, 2020
  • Revised Date: October 11, 2020
  • Published Date: October 14, 2020
  • Abstract: One of the key control parameters in hydraulic transient process of pumped-storage power unit is draft cone tube pressure, which should be within the design value. The design value is calculated by one dimension mathematical model of hydraulic transient theory with considering on certain pressure pulsation correction and calculation error. For a long time, there is non-negligible deviation between the calculated value by one dimension numerical simulation and the measured value of draft cone tube from on-site load rejection test. Henceforth, once engineers use measured values to check calculation results, they can not get reasonable explanation and evaluation between simulation results and measured values. In order to settle the difference between regulation guarantee calculation value and measured value, minimum pressure of draft cone tube was clarified from multiple perspectives in this paper, and Chinese standards or codes relating to hydraulic transient calculation were reviewed. The standard research indicates that for pumped storage unit, the minimum draft cone tube pressure should not below -0.08MPa in any circumstances. Measured draft cone tube pressure data of the rated load rejection tests performed in Hongping pumped storage power station during commissioning period was investigated. Firstly, field measuring conditions of draft cone tube pressure was thoroughly assessed and confirmed, and the validity of measured pressure was verified by using short-time-Fourier-transform to analyse the frequency characteristics. The frequencies of four draft cone tube pressure are similar, of which are low frequency component and rotor-stator frequency. The main frequencies are lower than first order eigen frequency of measuring pipes. The obtained data can be regarded as near wall measured pressure. Secondly, Savitzky-Golay filter was employed to separate trend and pulsation of measured draft cone tube pressure. The separated pressure trend can be deemed as the average section pressure of draft cone tube in one dimension numerical simulation, and the pressure pulsation represents the fluid complexity in the hydraulic transients. For pressure pulsations, relationship between maximum peak-to-peak values and time lengths were studied. For Hongping pumped-storage units, the maximum peak-to-peak values and time lengths of each unit are 0.489 MPa/0.46 s, 0.477 MPa/0.09 s, 0.532 MPa/0.66 s and 0.486 MPa/0.11 s, the average is 0.496 MPa/0.33 s. Consistency between pressure trends and one-dimension simulation results was verified. The verfication indicates that the guide vane closing principles are the same and pressure trends comply with the simulation results well. Thirdly, maximum peak-to-peak value of pressure pulsation was used to correct the one-dimension simulation results and trend items. The correction of draft cone tube has negligible errors with on-site measured values. Finally, the correction process was summarized for the hydraulic transient calculation of draft cone tube. The case study indicates that the pressure trend, which is consistent with one-dimension simulation result, can be effectively separated from measured draft cone tube pressure by using low-pass filter with cutoff frequency of 0.1-0.2 times rated rotational frequency; the maximum peak-to-peak value of pressure pulsation can be obtained by selecting data of 3-4 rotational periods; hydraulic transient calculation of draft cone tube can be effectively corrected and verified by superposing the maximum peak-to-peak value of measured pressure pulsation. The research provides effective support for regulation guarantee design and verification of pumped-storage power units.
  • [1]
    Streeter V L, Wylie E B. Fluid Transients in Systems[M]. Upper Saddle River: Prentice-Hall, 1993.
    [2]
    付亮,鲍海艳,田海平,等. 基于实测甩负荷的水轮机力矩特性曲线拟合[J]. 农业工程学报,2018,34(19):66-73.Fu Liang, Bao Haiyan, Tian Haiping, et al. Fitting of hydro turbine torque characteristic curves based on load rejection test[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2018, 34(19): 66-73. (in Chinese with English abstract)
    [3]
    Nonoshita T, Matsumoto Y, Ohashi H, et al. Water column separation in a straight draft tube[C]//. 3rd ASME/JSME Joint Fluids Engineering Conference, San Francisco, 1999.
    [4]
    Kiani A, Brekke H, Leyland B, et al. Transient problems upon load rejection Masjed-e Soleyman case study[C]// Hydro 2004, Portugal, 2004.
    [5]
    Pejovic S, Zhang Q F, Karney B, et al. Analysis of pump-turbine 'S' instability and reverse water hammer incidents in hydropower systems[C]// Fourth International Meeting on Cavitation and Dynamic Problems in Hydraulic Machinery Systems, Belgrade, 2011.
    [6]
    Pejovic S, Karney B, Zhang Q F. Water column separation in long tailrace tunnel[C]// Hydroturbo 2004 on Hydro-power Engineering International Conference, Brno, 2004.
    [7]
    水电水利规划设计总院.水电规机电[2013]12号 关于印发水电站输水发电系统调节保证设计专题报告编制暂行规定(试行)的通知[Z]. 2013.
    [8]
    中国电力企业联合会. T/CEC 5010-2019 抽水蓄能电站水力过渡过程计算分析导则[S]. 北京:中国电力出版社,2019.
    [9]
    国家能源局. NB/T 10072-2018 抽水蓄能电站设计规范[S].北京:中国电力出版社,2019.
    [10]
    中华人民共和国国家发展和改革委员会. DL/T 5186-2004 水力发电厂机电设计规范[S]. 北京:中国电力出版社,2004.
    [11]
    孙龙刚,郭鹏程,罗兴锜. 基于不同涡识别准则的水轮机尾水管涡带形态识别研究[J]. 水动力学研究与进展,2019,34(6):779-787. Sun Longgang, Guo Pengcheng, Luo Xingqi. Visualization investigation into precessing vortex in Francis turbine draft tube based on several vortex identification criterions[J]. Chinese Journal of Hydrodynamics, 2019, 34(6): 779-787. (in Chinese with English abstract)
    [12]
    Tsujimoto, Y. Cavitation instabilities in hydraulic machines[C]// IOP Conference Series: Materials Science and Engineering. IOP Publishing, 2013.
    [13]
    莫伦科夫 G,拉贝 J. 混流式水轮机尾水管内脉动速度和脉动压力的测量[M]//中国科学院水利电力部水利水电科学研究院. 水轮机水力振动译文集. 北京:水力电力出版社,1979.
    [14]
    常近时. 宇宙射线电离强度对清水空化压力特性的决定性影响[J]. 中国科学E辑:技术科学,2008,38(11):1970-1975.Chang Jinshi. The decisive influence of cosmic ray ionization intensity on the cavitation pressure characteristics of water[J]. Science China Series E: Technical Science, 2008, 38(11): 1970-1975. (in Chinese with English abstract)
    [15]
    Liu Jintao, Liu Shuhong, Sun Yuekun, et al. Three dimensional flow simulation of load rejection of a prototype pump-turbine[J]. Engineering with Computers, 2013, 29(4): 417-426.
    [16]
    周勤,夏林生,张春泽,等. 水泵水轮机甩负荷过程中的压力脉动和转轮受力[J]. 水利学报,2018,49(11):1429-1438. Zhou Qin, Xia Linsheng, Zhang Chunze, et al. Transient pressure fluctuations and runner loadings of a model pump-turbine during a load rejection process[J]. Journal of Hydraulic Engineering, 2018, 49(11): 1429-1438. (in Chinese with English abstract)
    [17]
    毛秀丽,孙奥冉,Giorgio P,等. 水泵水轮机甩负荷过程流动诱导噪声数值模拟[J]. 农业工程学报,2018,34(20):52-58.Mao Xiuli, Sun Aoran, Giorgio P, et al. Simulation of flow induced noise in process of pump-turbine load rejection[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2018, 34(20): 52-58. (in Chinese with English abstract)
    [18]
    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/T 17189-2017 水力机械(水轮机、蓄能泵和水泵水轮机)振动和脉动现场测试规程. 北京:中国标准出版社,2018.
    [19]
    International Electrotechnical Commission. IEC60041-1991 Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines. Geneva: International Electrotechnical Commission, 1991.
    [20]
    张飞,郭磊,宫让勤,等. 基于线性摩擦模型的水力机械测压管路特性[J]. 工程热物理学报,2018,39(8):1725-1730. Zhang Fei, Guo Lei, Gong Rangqin, et al. Pressure measurement pipe characteristics of hydraulic machinery based on linear friction model[J]. Journal of Engineering Thermophysics, 2018, 39(8): 1725-1730. (in Chinese with English abstract)
    [21]
    付亮,黄波,邹桂丽,等. 基于真机实测的双机共尾水调压室水电站同甩负荷仿真[J]. 水利水电技术,2018,49(11):116-122. Fu Liang, Huang Bo, Zou Guili, et al. Real-machine testing-based simulation on double units load shedding of hydropower station with tailrace surge chamber shared by two units[J]. Water Resources and Hydropower Engineering, 2018, 49(11): 116-122. (in Chinese with English abstract)
    [22]
    张飞,宫让勤,秦俊,等. 基于经验模态分解的蓄能机组甩负荷压力数据处理[J]. 水电能源科学,2017,35(6):132-135. Zhang Fei, Gong Rangqin, Qin Jun, et al. Pressure data processing in load rejection test of pumped-storage unit based on empirical mode decomposition[J]. Water Resources and Power, 2017, 35(6): 132-135. (in Chinese with English abstract)
    [23]
    曹林宁,蒋磊,陈忠宾,等. 基于VMD的甩负荷试验尾水管压力分析及预测[J]. 中国农村水利水电,2020,62(2):148-152.Cao Linning, Jiang Lei, Chen Zhongbin, et al. Analysis and prediction of water pressure of the draft tube in load rejection test based on VMD[J]. China Rural Water and Hydropower, 2020, 62(2): 148-152. (in Chinese with English abstract)
    [24]
    杨建东,胡金弘,曾威,等. 原型混流式水泵水轮机过渡过程中的压力脉动[J]. 水利学报,2016,47(7):858-864. Yang Jiandong, Hu Jinhong, Zeng Wei, et al. Transient pressure pulsations of prototype Francis pump-turbines[J]. Journal of Hydraulic Engineering, 2016, 47(7): 858-864. (in Chinese with English abstract)
    [25]
    Chirag T, Michel C, Bhupendra G, et al. Transient pressure measurements on a high head model Francis turbine during emergency Shutdown, total load rejection, and runaway[J]. ASME Journal of Fluids Engineering, 2014, 136(12): 121107
    [26]
    Chirag T, Michel C, Bhupendra G, et al. Pressure measurements on a high-head Francis turbine during load acceptance and rejection[J]. Journal of Hydraulic Research, 2014, 52(1): 1-15.
    [27]
    Schafer R W. What is a Savitzky-Golay filter?[J]. IEEE Signal Processing Magazine, 2011, 28(4): 111-117.
    [28]
    李琪飞,赵超本,龙世灿,等. 水泵水轮机飞逸工况下尾水管涡带演化研究[J]. 振动与冲击,2019,38(4):222-228. Li Qifei, Zhao Chaoben, Long Shican, et al. A study on evolution of vortex in the draft tube of pump-turbine under the runaway condition[J]. Journal of Vibration and Shock. 2019, 38(4): 222-228. (in Chinese with English abstract)
    [29]
    Michihiro N, Liu S H. An outlook on the draft-tube-surge study[J]. International Journal of Fluid Machinery and Systems, 2013, 6(1): 33-48.
    [30]
    Zhang Y, Zhang Y, Wu Y. A review of rotating stall in reversible pump turbine[J]. Journal of Mechanical Engineering Science, 2017, 231(7): 1181-1204.
    [31]
    Tsujimoto Y. Cavitation instabilities in hydraulic machines[C]//. 6th International Conference on Pumps and Fans with Compressors and Wind Turbines, 2013, 52(1): 012005
    [32]
    Wang Leqin, Yin Junlian, Jiao Lei, et al. Numerical investigation on the "S" characteristics of a reduced pump turbine model[J]. Sci China Tech Sci, 2011, 54(5): 1259-1266.
    [33]
    张飞,葛新峰,潘罗平,等. 稳态工况下水电机组主轴摆度峰峰值计算方法研究[J]. 振动与冲击,2015,34(21):170-174. Zhang Fei, Ge Xinfeng, Pan Luoping, et al. Shaft runout's peak-to-peak value calculation method for a hydraulic power unit under stable conditions[J]. Journal of Vibration and Shock, 2015, 34(21): 170-174. (in Chinese with English abstract)
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