简介:Installationdiagnostictechnologyisasyntheticappliedtechnol-ogyemergingrecently,whichisamethodologyforevaluatingthestress,worsening,fault,strength,functionetc.,withoutdisassem-blingtheinstallation.Theposition,degreeaswellascauseofabnor-malitycanbedetectedduringoperationusinganinstallationdiagno-sissystem,therebypredictingandevaluatingitsreliabilityanddeter-miningtherepairingmethod.
简介:Themedium-andlarge-sizedhydropowergeneratingunitswith4270MW(singleunitcapacityof25MWandabove)wereputintooperationin2000.BytheendofDecemberlastyear,China’stotalhydropowerinstalledcapacitycameuptoover77000MW,stillrankingsecondintheworldandthecapacityunderc
简介:Basedontheresearchofwindpowerdevelopmentpolicies,thispaperputforwardthereformdirectionstoimprovethedisadvantagesofthepolicies.Thewindpower’sgridintegrationstatusquoisintroduced,andthebottleneckofgridintegrationisanalyzed.BythestudyontheeconomicbenefitsofwindpowerintegrationinChina’spresentstage,theresultsindicatethatthewindpowerindustryisingoodconditionofprofitsandtheprofitsarehigherwiththeincreaseofthewindresourcesintheareas.Throughexpandingthedifferenceofthepowerpurchasepricesindifferentresourceareas,itisbeneficialforthenationwideharmoniousdevelopmentofwindpower.Atlast,thepresentandfuturebenefitsoftheenergyconservationandemissionreductionfromwindpowerintegrationareestimated,whichshowsthattheenvironmentalbenefitsof"wind-thermalexchange"willbemoreandmoreoutstandingalongwiththeexpansionofthescaleofwindpower.
简介:Astheworld’sauthoritativeorganizationonenergyinformation,theInternationalEnergyAgency(IEA),whichwasfoundedin1974,releasesKeyWorldEnergyStatisticseveryyearfrom1997(hereinafterreferredtoasthe"KeyData").The"KeyData"releasedin2007announcedthe2005statistics,andalsoprovidedthe1973statisticsforcomparison.Fromthepublisheddata,wecanclearlyfindthedevelopmentpathandtrendoftheworldenergyandpowerindustry.Also,China’sstrongdevelopmentmomentum,high-speedgrowthofenergyconsumptionandtheenormouschallengesinthesustainableenergysupplyareespeciallynoticeable.Thispaperreviewedthe"KeyData"toperceiveChina’sEnergyDevelopment.Theanalysisandinterpretationofthesedataarepurelyfromtheauthor’spointofview.
简介:OnOctober22thisyear,theLiaoning-Changchun-Jilin-Harbin-Jiamusi500kVtransmissionandsubstationprojectpassedtheacceptancetest.Itwasjudgedtheexcellentgrade.Thetransmissionlinehasatotallengthof1064kmandisthesecondnetworkframeinthenortheasternpartofChina.Itwi
简介:InMarchthisyear,theGovernmentofJiangsuXinghuaCityarrivedatanagreementonabiomassstrawpowergenerationprojectwithAsianPowerIndustryInvestmentCo.Ltd.(Singapore)inMaoshanTown,XinghuaCity.Theprojectwillbeinstalledwithtwo12-MWgeneratingunitsandwillbeabletoproduce120GWhofelectricityayear.
简介:220-kVandaboveclasstransmissionandsubstationfacilitiesIn2005therewere325supplyenterprises(including29EHVtransmissionandsubstationenterprises)and221generationenterprisesalloverthecountry.Mainreliabilityindexesof13kindsoftransmissionandsubstationfacilitiesin2004and2005areshowninTable1.Itcanbeenseenthatthereliabilityindexesin2005remainedatahighJevel,andtheiravailabilityfactorcameuptoover98%.Thisembodiedthattheenterpriseswerestillabletoputthereliabilitymanagementworkinthe
简介:1.ThepresentmanufacturingsituationofChina’sthermalpowergenerationequipmentBytheyear1995.developmentofChina’selectricpowerindustryhasexperiencedacourseofahundredyears.Overaperiodoftheinitial50years.China’sdevelopmentofelectricpowerwasslow.Atthetimeof1949,thetotalinstalledcapacityinChinawas1,850MWandtheelectricitygeneratedwasonly4.3billionkWh.Duringthepast46yearsafter1949,herannual
简介:Likeothercountriesintheworld,itisinevitabletoencoun-terwithsomeenvironmentproblemsintheprocessofen-ergydevelopmentandutilization.ItisespeciallysoinChinawhereenergystructureismainlybasedoncoal.Atpresent,coaltakes74%ofthetotalprimaryenergywhileoutofthe74%,only23%hasbeenconvertedintocleanandconvenientelectncenergy.Sopredomi-nately,theairpollutioninChinaismainlycausedbycoalsmoke.Inlargecities,theairpollutionbydirectcoalburningisbecomingmoreandmoreoutstandingduetothefastdevelopmentofindustryand
简介:<正>The500-kVTai-Xiangtransmissionlineprojecthascompleted80%ofthetotalconstructionengineeringatthebeginningofNovemberthisyear.Yamenwaterway-crossingproject,animportantpartoftheline,hasbeentoppedatpresent.Twosteel-pipetowerscrossingXijiangRiver’sYamenwaterwayis215.5-mhigheach.Thedistancebetweenthetwo
简介:1.Throughtheconstructionduringthelastfourtyyearsandespeciallyundertheguidanceofthe“Reformandopening”policy,thepowergenerationequipmentmanufacturingindustryofChinahasachievedtremendousdevelopmentinthe1980’s.Whateverin
简介:基于二维有限元法,分别对磁通切换双凸极电动机(FSPM)的静态场和瞬态场进行了有限元计算,着重探讨了6/7极FSPM结构及特性,并与6/5极FSPM进行对比研究。研究结果表明,6/7极FSPM比6/5极具有更小的齿槽转矩,磁链和反电势波形具有更好的正弦性。
简介:RizhaoThermalPowerPlant1stphaseprojectinShandongProvincehasgeneratedmorethan6TWhofelectricity,sinceitwentintooperationinthemiddleofAprillastyear,andallthetech-economicalindexeshasreachedthefirst-ratelevelathome.The1stphaseprojectofRizhaoPowerPlant,with2×
简介:(1)Chinaisvastinterritoryandrichinnaturalresources.Ithasdiversifiedpopula-tionanditsenergyresourcesareunevenlydistributed.Inthepastmorethantenyears,therehasbeenagreatgapbetweende-mandandsupplyinelectricity.Inordertosolvethisproblem,theChineseGovern-mentpaysgreatattentiontodevelopwindenergyandnewenergypoliciesofsuitabletothelocalconditions,multi-functionsfor
简介:InlightofChinasNinthFive-yearPlan(1996-2000)forElectricPowerIndustry&theLongTermTargetsbytheYear2010,thepaperconsidersthestrategyfordevelopingChina’sthermalpowerinthe21stcenturyshallbetheefficiencyandcleaningtechnologyofcoaluse.Especiallyimportantisthestructureofpowersourcesandconfigurationoftechnologyprocess,andsecondlytheimplementationofenergysavingandenvironmentalprotectionideologyinthevariousstagesofthermalpowerconstructionanddesignwork.