xEMCA2008,35(12)SKFGerwinPreisinger(SKFOsterreichAG,IndustrialElectricalSegment,SeitenstettnerStr.15,4401Steyr,A):,,,:,SKF:;;:TM315:A:167326540(2008)1220054204SKFX2LargeHybridDeepGrooveBallBearingsAReliableSolutionforWindTurbineGeneratorsGerwinPreisinger(SKFOsterreichAG,IndustrialElectricalSegment,SeitenstettnerStr.15,4401Steyr,A)Abstract:Prematurebearingfailuresofwindturbinegeneratorsareoccurringfrequently.Thereasonsaremani2fold,butbasedonapplicationstudiesandbearinginvestigationstwomainrootcauseshavebeenidentified:electricalcurrentpassage,electricalerosionrespectively,duetofrequencyconvertersupplyofdoubly-fedinductiongeneratorsandlubricationandwearrelatedproblems.Strivestogiveanoverviewontypicalrootcausesforprematurebearingfail2uresinwindturbinegeneratorapplicationsandintroducesextra-large(XL)hybriddeepgrooveballbearingsasanewSKFsolutiontosignificantlyreducegeneratorbearingfailuresandtoincreasetheoverallreliabilityandoperatingavailabilityofwindturbines.Keywords:windturbinegenerators;bearings;solution0,,,,,56,,,,,,,,,,,SKF,1,,,:45DC-AC电机技术论坛(12)xEMCA,,,1.1,,,,:,,,,,,,,,58m,,,,(1),1()1.2,,(),,:,:,,:,,,,(),,,,,,,6,,;1.3,,,,,,,:(,),,55DC-AC电机技术论坛(12)(2),,,;,,2,,,,,,,,,(3)32(4),:;,4(),40%,,,,,,SKF,,,,,,,,,SKF65DC-AC电机技术论坛(12)xEMCASKF3,,,SKF(1),,,,1d/mmD/mmB/mm/kw/kw/(rmin-1)/(rmin-1)/kg11024050187.5174.8800043009.506322/HC5C3S0VA97012026055200.3198.77500400012.86324/HC5C3S0VA97013028058212.2222.86700380016.06326/HC5C3S0VA97014030062265.9265.96300360016.66328/HC5C3S0VA97015032065288.7306.56000320023.06330/HC5C3S0VA97016034068330.9391.15300280025.36332/HC5C3S0VA97017036072330.9391.15300280031.46334/HC5C3S0VA97018038075330.9391.15300280037.86336/HC5C3S0VA970::HC52;C3,C3P2;S02;VA9702SKFISO15:1998,,,,4,,,SKF,,SKF,,,,[1]ZikaT,BuschbeckF,PreisingerG,GroschlM.Elec2tricerosion-currentpassagethroughbearingsinwindturbinegenerators[C]Proceedingsofthe6thChi2neseElectricalMachineryDevelopmentForum,Chi2na/Shanghai,2007(10):85299.:200821220375DC-AC电机技术论坛