三峡大学学报（自然科学版）2025，Vol.47Issue(3)：28-35,8.DOI:10.13393/j.cnki.issn.1672-948X.2025.03.005
抽水蓄能电站同发同抽不等流量运行的水力特性研究
Study on Hydraulic Characteristics of Pumped Storage Power Plant Running with Simultaneous Generation and Pumping at Different Flow Rates
摘要
Abstract
In order to study the hydraulic characteristics of pumped storage power stations during the operation of unequal flow rates with simultaneous generation and pumping,this paper used the finite volume method to simulate the three-dimensional hydrodynamic dynamics of different pumping flow ratios based on the design parameters of the inlet/outlet of the lower reservoir side of a pumped storage power station.The hydraulic characteristics of the diversion canal,such as the flow regime,the flow velocity distribution of the channel,the flow distribution of the channel,and the head loss coefficient were compared and analyzed.The results show that vortices are generated on the outflow side of the power generation in the diversion canal under different flow ratios,but the main stream position,vortex and flow range in the canal are different.The flow ratio has less effect on the flow regime of the outlet(power generation)unit,but has a certain greater impact on the flow regime of the inflow(pumping)unit.The standard deviation of the flow distribution ratio of the outflow(power generation)unit decreases slightly with the increase of the flow ratio,and the flow distribution ratio of the inflow(pumping unit)is not related to the pumping flow ratio.When the pumped storage power station is operated with unequal flow rates with simultaneous generation and pumping,it is recommended to choose a pumping flow ratio≥2.0 considering the flow state of the diversion channel and the flow pattern of the channel.关键词
抽水蓄能电站/侧式进出水口/同发同抽/数值模拟/水力特性Key words
pumped storage power plant/side inlet/outlet/simultaneous generation and pumping/numerical simulation/hydraulic characteristics分类
水利科学引用本文复制引用
陈青生,刘天凤,孙纪阳,徐津..抽水蓄能电站同发同抽不等流量运行的水力特性研究[J].三峡大学学报（自然科学版）,2025,47(3):28-35,8.基金项目
国家重点研发计划项目(2022YFC3202604) （2022YFC3202604）
国家自然科学基金项目(52379087) （52379087）
中央高校基本科研业务费专项(B230202002) （B230202002）
