中国水利水电科学研究院学报（中英文）2026，Vol.24Issue(5)：616-623,658,9.DOI:10.13244/j.cnki.jiwhr.20250031
新型电力系统需求下大型水电机组转轮疲劳寿命预估
Prediction of runner fatigue life of large hydropower units under the demand of renewable-energy-dominated power system
摘要
Abstract
In the context of the goal of'carbon peaking and carbon neutrality',domestic large units inevitably need to undertake the task of shifting from based-load operation to load adjustment mode,which leads to a significant increase in the number of start-stop times and long-term unstable operation conditions.Although the existing studies show that the fatigue life of the runner is significantly affected by the running state of the unit,the calculation of the runner stress of large units under the conditions of start-stop,idling and variable load is still relatively scarce.In order to study the variation of runner stress of a large unit under complex working conditions,this paper takes a large hydropower station as an example to analyze the flow characteristics and stress intensity of the runner of a large mixed-flow unit under different operating conditions by CFD method.The research results reveal the theoretical life span of the large unit under the current operating conditions.关键词
新型电力系统/水电机组/计算流体力学/应力分析/转轮疲劳寿命Key words
renewable-energy-dominated power system/hydropower unit/CFD/stress analysis/runner fatigue life分类
建筑与水利引用本文复制引用
廖祥波,董钟明,贺秀儒,薛起耀,吴挺玮,安学利..新型电力系统需求下大型水电机组转轮疲劳寿命预估[J].中国水利水电科学研究院学报（中英文）,2026,24(5):616-623,658,9.基金项目
三峡金沙江云川水电开发有限公司禄劝乌东德电厂科技项目(Z522302036) （Z522302036）
