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随着我国大力推进构建以新能源为主体的新型电力系统，抽水蓄能电站的建设与维护投入大幅上涨，机组稳定运行成为关注热点。水泵水轮机作为能源转换的核心部件，研究其运行稳定性具有重要意义。因此，聚焦可逆式长短叶片水泵水轮机泵工况的驼峰区，通过试验验证数值计算设置的准确性，结合数值计算溯源驼峰形成时机组内部流动状态，通过对额定开度下驼峰区机组内部流态分析，发现扬程下降形成驼峰的原因是转轮进口失速涡和无叶区动静干涉形成的流动分离共同作用导致，引入熵产分析，对驼峰区流动失稳程度和能量耗散位置进行量化补充。研究结论为相关研究提供了分析方法和思路上的参考。
Abstract：As China vigorously promotes the construction of a new power system with new energy as the mainstay, the investment in the construction and maintenance of pumped storage power stations has soared, making the stable operation of generating units a focal point of attention. As the core component of energy conversion, the study of the operational stability of pump-turbines is of great significance. This paper focuses on the hump region of the pump operating condition of reversible long and short blade pump-turbines. Through experimental testing, the accuracy of numerical calculation settings is verified. Combined with numerical calculations, the internal flow state of the generating unit during the formation of the hump is traced. By analyzing the internal flow state of the generating unit in the hump region at rated opening, it is found that the reason for the formation of the hump due to head drop is the combined effect of flow separation caused by the stall vortex at the inlet of the runner and the interference between the rotor and stator in the bladeless region. The introduction of entropy production analysis provides a quantitative supplement to the analysis of the degree of flow instability and the location of energy dissipation in the hump region. The conclusions of this study provide analytical methods and ideas for related research.
[1] 罗一凡，岳子静，张墨苇，等.中国碳达峰、碳中和能源控制目标及供给侧清洁化进程[J].能源研究与管理，2022,14(3):12-19,25.(LUO Y F,YUE Z J,ZHANG M W,et al.China’s energy control target and progress of clean energy development under the goal of emission peak and carbon neutrality[J].Energy research and management,2022,14(3):12-19,25.(in Chinese))
[2] 周凌九，庞嘉扬，程宦，等.混流式水轮机尾水管特殊压力脉动试验及分析[J].水力发电学报，2025,44(10):121-132.(ZHOU L J,PANG J Y,CHENG H,et al.Experimental tests and analysis on special pressure pulsations in draft tube of Francis turbine[J].Journal of hydroelectric engineering,2025,44(10):121-132.(in Chinese))
[3] 任伟楠，朱方亮，韩冬，等.抽水蓄能行业发展现状与展望[J].水电与抽水蓄能，2025,11(1):4-10.(REN W N,ZHU F L,HAN D,et al.Current status and future development of pumped storage industry[J].Hydropower and pumped storage,2025,11(1):4-10.(in Chinese))
[4] 庞嘉扬，刘小兵，宋罕，等.基于水光蓄互补联合发电系统混流式水轮机在超低出力区工况稳定性研究[J].水电与抽水蓄能，2021,7(5):39-46.(PANG J Y,LIU X B,SONG H,et al.Study on stability of francis turbine in ultra-low output region based on hydro-photovoltaic-storage combined power generation system[J].Hydropower and pumped storage,2021,7(5):39-46.(in Chinese))
[5] 罗竹梅，董广贺，曾云，等.分流叶片水泵水轮机驼峰区能量损失与不稳定内流关联研究[J].水电能源科学，2025,43(6):180-184.(LUO Z M,DONG G H,ZENG Y,et al.Study on correlation between energy loss and unsteady internal flow in the hump characteristic of splitter blade pump turbine[J].Water resources and power,2025,43(6):180-184.(in Chinese))
[6] 王福军，唐学林，陈鑫，等.泵站内部流动分析方法研究进展[J].水利学报，2018,49(1):47-61,71.(WANG F J,TANG X L,CHEN X,et al.A review on flow analysis method for pumping stations[J].Journal of hydraulic engineering,2018,49(1):47-61,71.(in Chinese))
[7] LI D Y,WANG H J,CHEN J X,et al.Hysteresis characteristic in the hump region of a pump-turbine model[J].Energies,2016,9(8):620.
[8] GUO Z W,WANG C H,QIAN Z D,et al.Suppression of hump characteristic for a pump-turbine using leading-edge protuberance[J].Proceedings of the Institution of Mechanical Engineers,Part A:Journal of Power and Energy,2020,234(2):187-194.
[9] YANG J,PAVESI G,LIU X H,et al.Unsteady flow characteristics regarding hump instability in the first stage of a multistage pump-turbine in pump mode[J].Renewable energy,2018,127:377-385.
[10] 庞嘉扬，张惠忠，杨建明，等.高水头混流式水轮机沙水流动数值模拟及转轮泥沙磨损实验研究[J].水动力学研究与进展A辑，2020,35(4):436-443.(PANG J Y,ZHANG H Z,YANG J M,et al.Numerical and experimental study on sediment erosion of Francis turbine runner for hydropower stations[J].Journal of hydrodynamics,2020,35(4):436-443.(in Chinese))
[11] 王焕茂，吴刚，吴伟章，等.混流式水泵水轮机驼峰区数值模拟及分析[J].水力发电学报，2012,31(6):253-258.(WANG H M,WU G,WU W Z,et al.Numerical simulation and analysis of the hump region of mixed-flow pump-turbine[J].Journal of hydroelectric power,2012,31(6):253-258.(in Chinese))
[12] 蔡海坤.长短叶片水泵水轮机泵工况下动静干涉及振动特性研究[D].镇江：江苏大学，2020.(CAI H K.Research on characteristics of rotor-stator interaction and vibration in pump mode of pump-turbine with splitter blades[D].Zhenjiang:Jiangsu University,2020.(in Chinese))
[13] CELIK I B,GHIA U,ROACHE P J,et al.Procedure for estimation and reporting of uncertainty due to discretization in CFD applications[J].Journal of fluids engineering,130(7):78001.
基本信息:
DOI：10.20040/j.cnki.1000-7709.2026.20252199
中图分类号:TV734.1
引用信息:
[1]聂靓靓,李黎浩,王权,等.基于熵产分析的长短叶片水泵水轮机泵工况驼峰形成机理研究[J].水电能源科学,2026,44(10):203-207+40.DOI:10.20040/j.cnki.1000-7709.2026.20252199.
基金信息:
南方电网公司科技项目(022200KK52222006); 国家自然科学基金区域联合基金重点支持项目(U23B20143); 国家自然科学基金面上项目(52279085)
2025-12-23
2025
2026-09-07
2026-01-05
2026
1
2026-01-21
2026-01-21
2026-01-21