变速抽水蓄能机组空化特性及运转特性研究  

Study on Cavitation and Operation Characteristics of Variable Speed Pumped Storage Units

作　　者：刘德民 许唯林 赵永智 LIU Demin;XU Weilin;ZHAO Yongzhi(Dongfang Electric Machinery Co.Ltd.,Deyang 618000,China;Sichuan University,Chengdu 610065,China)

机构地区：[1]东方电气集团东方电机有限公司,四川省德阳市618000 [2]四川大学,四川省成都市610065

出　　处：《水电与抽水蓄能》2020年第4期36-45,共10页Hydropower and Pumped Storage

基　　金：中国博士后科学基金资助项目批准号(2020M673568XB)。

摘　　要：近年来我国抽水蓄能发展迅速,在运与在建的装机容量均稳居世界第一。随着电站参数水平不断提高,抽水蓄能机组对稳定性的要求越来越高。变速抽水蓄能机组以其灵活的运行方式,宽泛的功率调节能力,快捷的功率响应机制受到业界的广泛关注。国内外已投运的变速机组已经取得了很好的工程应用效果和经济价值,国内变速机组的发展刚刚起步,正在建设的某抽水蓄能电站变速抽水蓄能机组正在制造。本文针对变速机组的空化特性进行研究,研究宽功率调节范围下的空化特性,并对空化带来的可压缩效应对机组特性的影响进行了初步研究,为变速抽水蓄能机组的工程应用提供参考。In recent years,pumped storage in China has developed rapidly,and the installed capacity in operation and under construction is the first in the world.With the constant improvement of power station parameters,the stability of pumped storage units is paid attention to by customers.Variable-speed pumped storage units are widely concerned for their flexible operation mode,wide power regulation ability and fast power response mechanism.Transmission units put into operation at home and abroad have achieved good engineering application and economic value,the development of domestic transmission units has just started,a pumped-storage hydroelectricity variable speed pumped storage unit under construction is being manufactured.In this paper,the cavitation characteristics of variable speed units are studied,and the effect of compressibility caused by cavitation on the characteristics of units is studied.It provides reference for the engineering application of variable speed pumped storage unit!

关 键 词：变速抽水蓄能机组 空化特性 可压缩效应 

分 类 号：TV743[水利工程—水利水电工程]