回龙抽水蓄能电站发电电动机改造关键技术分析
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摘要
抽水蓄能机组在高水头、高转速,双转向、频繁启停等运行条件下,逐渐暴露出一系列问题。近年来,国内抽水蓄能电站共计发生严重及以上缺陷近千个,以发电机和水轮机设备居多,其中发电机方面普遍存在推力轴承瓦温高、下导轴承甩油等缺陷,属于家族性问题。本文简要介绍了回龙抽水蓄能电站发电电动机在改造过程中遇到的问题,并对优化改造部分进行了分析总结,以期对国内外同类电站提供有益借鉴。
It is found that there is a series of design and manufacturing problems in domestic pumped storage power station with the development of high speed and high head,especially in generator-motor.Among them,high temperature of thrust bearing and oil rejection of lower guide bearing are common defects in generator-motor,which belong to familial problems.In this paper,problems in the transformation of reversible generator-motor were introduced,meanwhile the analysis and the structure improvement were proposed,which provide with example and reference for copper rotor bars of the same kind.
It is found that there is a series of design and manufacturing problems in domestic pumped storage power station with the development of high speed and high head,especially in generator-motor.Among them,high temperature of thrust bearing and oil rejection of lower guide bearing are common defects in generator-motor,which belong to familial problems.In this paper,problems in the transformation of reversible generator-motor were introduced,meanwhile the analysis and the structure improvement were proposed,which provide with example and reference for copper rotor bars of the same kind.
引文
[1]白延年.水轮发电机设计与计算[M].北京:机械工业出版社,1982.
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[3]王慧.水轮发电机转子改造设计[J].防爆电机,2016,51(1):42-45.WANG Hui.Design on Modified Rotor of No.1 HydroGenerator of Mashi Hydropower Station[J].Explosion-Proof Electric Machine,2016,51(1):42-45.
[4]武中德,张宏,张仁江,吴军令.水轮发电机镜板泵外循环技术[J].华中电力,2004,17(6):32-34.WU Zhongde,ZHANG Hong,ZHANG Renjiang,WUJunling.Technology of Outer Circulation with Runner-pump for Hydrogenerators[J].Central China Electric Power,2004,17(6):32-34.
[5]杨斌.柳洪水电站发电机转子磁极引线损坏的原因分析及处理[J].华中电力,2010,23(4):53-54.YANG Bin.Analysis and Treatment of Damaged Lead Wire of Rotor Magnetic Pole in Liuhong Hydro-generator Unit[J].Central China Electric Power,2010,23(4):53-54.
[2]陈弘昊,汪志强,陈泓宇,等.大型国产抽水蓄能发电机安装调试过程设计优化综述[J].水电与抽水蓄能,2018,4(1):23-31.CHEN Honghao,WANG Zhiqiang,CHEN Hongyu,et al.Review on the Improvements of the Main Equipment Structure Design and Manufacturing in Reversible Generator-motor of Large Domestic Pumped Storage Power Staion[J].Hydro Power and Pumped storage,2018,4(1):23-31.
[3]王慧.水轮发电机转子改造设计[J].防爆电机,2016,51(1):42-45.WANG Hui.Design on Modified Rotor of No.1 HydroGenerator of Mashi Hydropower Station[J].Explosion-Proof Electric Machine,2016,51(1):42-45.
[4]武中德,张宏,张仁江,吴军令.水轮发电机镜板泵外循环技术[J].华中电力,2004,17(6):32-34.WU Zhongde,ZHANG Hong,ZHANG Renjiang,WUJunling.Technology of Outer Circulation with Runner-pump for Hydrogenerators[J].Central China Electric Power,2004,17(6):32-34.
[5]杨斌.柳洪水电站发电机转子磁极引线损坏的原因分析及处理[J].华中电力,2010,23(4):53-54.YANG Bin.Analysis and Treatment of Damaged Lead Wire of Rotor Magnetic Pole in Liuhong Hydro-generator Unit[J].Central China Electric Power,2010,23(4):53-54.