抽水蓄能电站导叶关闭规律与尾水调压室阻抗孔尺寸优化研究OA
Optimization of Guide Vane Closing Law and Tailrace Surge Chamber Impedance Orifice Size in a Pumped Storage Power Station
针对广东省某抽水蓄能电站,构建水力过渡过程数值模型,系统探讨了导叶关闭规律与尾水调压室阻抗孔直径对输水发电系统过渡过程的影响.计算结果表明:水轮机工况下,机组导叶关闭时间对机组调保参数影响较大,合适的关闭时间能较好地改善过渡过程参数极值.此外,与尾水支管管径、尾水闸门和尾水调压室位置相比,适当增大尾水调压室阻抗孔直径,能更显著地提升尾水管进口最小压力,改善过渡过程品质.研究成果可为类似抽水蓄能电站的输水与发电系统设计及运行环节提供技术支撑和工程借鉴.
This study investigates a pumped storage power station in Guangdong Province,China,focusing on optimizing hydraulic transient processes in the water conveyance and generating system.By establishing a numerical model for hydraulic transients,the effects of guide vane closing laws and impedance orifice size in the tailrace surge chamber are systematically analyzed.The results indicate that:For turbine operating conditions,guide vane closing duration significantly influences hydraulic transient guarantee design parameters,and selecting an appropriate closing time can optimize extreme transient values.Besides,increasing the orifice diameter in the tailrace surge chamber outperforms adjustments to tailrace pipe diameter,gate location,or surge chamber location,by significantly improving minimum draft tube inlet pressure and transient process quality.This study provides theoretical and practical insights for designing and operating pumped storage power systems.
张国罡;王婧;任灏;张绍欣
中国能源建设集团广东省电力设计研究院有限公司,广州 510663中国能源建设集团广东省电力设计研究院有限公司,广州 510663中国能源建设集团广东省电力设计研究院有限公司,广州 510663中国能源建设集团广东省电力设计研究院有限公司,广州 510663
建筑与水利
抽水蓄能电站导叶关闭规律尾水调压室阻抗孔水力过渡过程尾水管进口最小压力
pumped storage power stationguide vane closing lawtailrace surge chamber impedance orificehydraulic transient processesminimum draft tube inlet pressure
《广东水利水电》 2026 (8)
134-138,5
中国能建广东院科技项目(编号:EV11021W).
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