水轮机顶盖排水泵动态剩余寿命综合预测方法  

A Comprehensive Prediction Method of the Dynamic Remaining Life of the Turbine Roof Drainage Pump

作　　者：皮俊东 肖志怀[1] 任刚 张舸[2] 汪林[2] 王登贤 薛云蛟 王杰飞[2] PI Jun-dong;XIAO Zhi-huai;REN Gang;ZHANG Ge;WANG Lin;WANG Deng-xian;XUE Yun-jiao;WANG Jie-fei(School of Power and Mechanical Engineering,Wuhan University,Wuhan 430072,Hubei Province,China;China Yangtze Power Co.,Ltd,Yichang 443000,Hubei Province,China)

机构地区：[1]武汉大学动力与机械学院,湖北武汉430072 [2]中国长江电力股份有限公司,湖北宜昌443000

出　　处：《中国农村水利水电》2023年第7期256-261,267,共7页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51979204)。

摘　　要：为保障水电厂机组安全平稳运行,优化检修策略,针对水轮机顶盖排水系统,提出了一种顶盖排水泵剩余寿命预测算法,在基于实时数据的基础上,结合可靠性原理,根据顶盖排水泵的振动速度、振动位移、抽水流量、抽水时间分别计算出其对应运行可靠度,融合得到顶盖排水泵综合运行可靠度,结合极限学习机算法构建剩余寿命评估模型,实现了水轮机顶盖排水泵动态剩余寿命综合预测,结合水电厂顶盖排水系统实时数据,验证了该方法的有效性和可行性。In order to ensure the safe and stable operation of the hydropower plant units and optimize the maintenance strategy,this paper proposes a prediction algorithm for the remaining life of the head cover drainage pump for the water turbine head cover drainage system.On the basis of real-time data,combined with the reliability principle,the corresponding operation reliability of the head cover drainage pump is calculated according to its vibration speed,vibration displacement,pumping flow and pumping time,and the integrated operation reliability of the head cover drainage pump is obtained.Combined with the limit learning machine algorithm,the residual life assessment model is constructed,and the dynamic residual life of the top cover drainage pump of the hydraulic turbine is comprehensively predicted.Combined with the real-time data of the top cover drainage system of the hydropower plant,the effectiveness and feasibility of this method are verified.

关 键 词：顶盖排水泵 剩余寿命 可靠性原理 极限学习机 预测 

分 类 号：S212[农业科学—农业机械化工程] S237[农业科学—农业工程]