摘要
本文对混合式抽水蓄能电站的最低运行水位影响因素进行了分析,针对在抽水工况下因进出水口漏斗造成的下库水面线反比降现象,通过建立水动力模型,分析水面线反比降现象对下水库坝前水位的影响;对河床采取开挖措施解决因反比降现象无法保证抽水蓄能电站设计抽水要求的问题;以光马混合式抽水蓄能电站为例,通过分析开挖方式对抽水蓄能效益的影响,并综合考虑下水库原有承担的功能,得到了合理的下水库最低运行水位结果。
The influencing factors of the lowest operating water level of hybrid pumped storage power station are analyzed in this paper.In order to deal with the reverse specific drop phenomenon of the water surface line of the lower reservoir caused by the inlet and outlet funnel under pumping conditions,a hydrodynamic model is established to analyze the influence of the reverse specific drop phenomenon of the water surface line on the downstream dam water level.The riverbed is excavated to solve the problem that the design of the pumping station cannot be guaranteed due to the reverse ratio drop phenomenon;Take Guangma hybrid pumped storage power station as an example.The influence of excavation mode on operation efficiency is analyzed.Considering the original functions of the lower reservoir,the reasonable lowest operating water level of the lower reservoir is obtained.
作者
杨堃
范国福
安莉娜
YANG Kun;FAN Guofu;AN Lina(Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China)
出处
《水电与抽水蓄能》
2023年第S01期116-120,115,共6页
Hydropower and Pumped Storage
基金
中国电力建设股份有限公司科技项目经费资助项目(DJ-ZDXM-2020-24)。
关键词
混合式抽水蓄能
水电梯级
特征水位
hybrid pumped storage
cascade hydropower station
characteristics of water level
