基于波追踪法的水电站水力过渡过程计算与分析  

Calculation and Analysis of Hydraulic Transition Process of Hydropower Station Based on Wave Tracking Method

作　　者：阴鑫月 鲁传银 赵克宇 王玉川 尹进步 曾宗耀 YIN Xin-yue;LU Chuan-yin;ZHAO Ke-yu;WANG Yu-chuan;YIN Jin-bu;ZENG Zong-yao(College of Water Conservancy and Construction Engineering,Northwest A&F University,Xianyang 712100,China;China Electric Power Construction Group Guiyang Survey and Design Institute Co.,Ltd.,Guiyang 550000,China;Zhejiang Oujiang Hydropower Development Co.,Ltd.,Lishui 323000,China)

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西咸阳712100 [2]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550000 [3]国电电力浙江瓯江水电开发有限公司,浙江丽水323000

出　　处：《水电能源科学》2025年第3期152-157,共6页Water Resources and Power

基　　金：国家自然科学基金项目(51909222,52339006)。

摘　　要：针对现有水电站水力过渡过程计算方法的不足,推导了基于波追踪法的水电站引水发电系统水轮机、分叉管、调压井等水力过渡过程计算边界模型,通过坦桑尼亚尼雷尔水电站甩负荷等工况的计算与模型试验结果对比,验证了该计算方法和模型的准确性;依据计算结果讨论了引水隧洞波速和导叶关闭时间对调压井涌浪极值的影响。结果表明,压力钢管波速不变的情况下,引水隧洞波速取较小值时,调压井的涌浪最高水位升高,衰减周期变长;调压井涌浪最高水位随导叶关闭时间呈开口向下抛物线形状,存在一极大值。Aiming at the shortcomings of the existing calculation methods of hydraulic transition process of hydropower station,the boundary models for calculating hydraulic transition process of hydropower plant delivery system including hydraulic turbine,bifurcation pipes and surge tank are derived based on wave tracking method.The calculation method and model accuracy were verified by comparing the calculating results with the physical model test results of load rejection working conditions of Nyerere Hydropower Station in Tanzania.The results show that the maximum level of surge water in the surge tank increases and the decay period becomes longer when the wave velocity of the diversion tunnel is taken to a smaller value for a constant wave velocity of the penstocks.The maximum water level of the surge in the surge tank is in the shape of an opening down parabola with the closing time of the guide vane,and a maximum value exists.

关 键 词：水电站 引水系统 水力过渡过程 波追踪法 调压井涌浪 

分 类 号：TV732[水利工程—水利水电工程]