抽水蓄能机组运行稳定性分析
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摘要
抽蓄机组作为电力系统理想的调峰电源,其安全稳定性关乎电网的可靠运行。本文以抽蓄机组的振动特性为依据,对机组稳定性进行分析和评价。针对潘家口抽水蓄能电厂运行中上导摆度和定子水平振动过大等问题,分别进行了变负荷、变转速和励磁振动试验分析,为今后的机组改造及大修提供技术依据,同时也可为其它电站处理类似问题提供参考。
Pumped storage units are ideal peaking power sources.And the reliable services of power grids rely on the safety and stability of the pumped storage units.This paper analyzes and evaluates the stability of the pumped storage units based on their vibration characteristics.In response to such problems as high swing of upper guides and too big horizontal vibration of stators in the operation of Panjiakou Pumped Storage Power Plant,the author has carried out tests on varying loads,variable speeds and excitation vibration respectively and analyzed results accordingly,providing technical basis for future renovation and overhaul of the units as well as a reference to other power plants dealing with similar problems.
Pumped storage units are ideal peaking power sources.And the reliable services of power grids rely on the safety and stability of the pumped storage units.This paper analyzes and evaluates the stability of the pumped storage units based on their vibration characteristics.In response to such problems as high swing of upper guides and too big horizontal vibration of stators in the operation of Panjiakou Pumped Storage Power Plant,the author has carried out tests on varying loads,variable speeds and excitation vibration respectively and analyzed results accordingly,providing technical basis for future renovation and overhaul of the units as well as a reference to other power plants dealing with similar problems.
引文
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[3]桂中华,樊玉林,常玉红,等.某抽水蓄能电站1F机组上导摆度大及推力瓦温高问题的处理[J].水电与抽水蓄能,2015,1(1):16-20.
[4]樊玉林,孙慧芳,桂中华,等.某抽水蓄能电站3F机组摆度偏大问题分析与处理[J].水电与抽水蓄能,2016,2(1):22-24
[5]吴敏,张涛.黑麋峰电站1号机组发电工况轴承摆度与工况分析[J].水电站机电技术,2016,39(4):11-13.
[6]孟龙,刘孟,支发林,等.机械不平衡及轴瓦间隙对水轮机运行稳定性的影响分析[J].机械工程学报,2016,52(3):49-55.
[7]阎宗国,周凌九,何军兵,等.水轮发电机组转子动平衡试验[J].水力发电学报,2012,31(2):235-239.
[8]王辉斌.东江水电站3号机组上导摆度异常增大原因及处理方法[J].水电站机电技术,2001(4):49-53.
[9]蒋玉华,张智彬,何成连.水轮发电机组动平衡试验相位判断法与实施[J].水利水电工程设计,2009,28(2):18-21.
[2]宫玉龙.拉西瓦2F、5F机组推力轴承问题分析及处理[J].防爆电机,2012,47(2).
[3]桂中华,樊玉林,常玉红,等.某抽水蓄能电站1F机组上导摆度大及推力瓦温高问题的处理[J].水电与抽水蓄能,2015,1(1):16-20.
[4]樊玉林,孙慧芳,桂中华,等.某抽水蓄能电站3F机组摆度偏大问题分析与处理[J].水电与抽水蓄能,2016,2(1):22-24
[5]吴敏,张涛.黑麋峰电站1号机组发电工况轴承摆度与工况分析[J].水电站机电技术,2016,39(4):11-13.
[6]孟龙,刘孟,支发林,等.机械不平衡及轴瓦间隙对水轮机运行稳定性的影响分析[J].机械工程学报,2016,52(3):49-55.
[7]阎宗国,周凌九,何军兵,等.水轮发电机组转子动平衡试验[J].水力发电学报,2012,31(2):235-239.
[8]王辉斌.东江水电站3号机组上导摆度异常增大原因及处理方法[J].水电站机电技术,2001(4):49-53.
[9]蒋玉华,张智彬,何成连.水轮发电机组动平衡试验相位判断法与实施[J].水利水电工程设计,2009,28(2):18-21.