简介：Thispaperpresentstheworkingprocedureofpowergeneratingenterprisesandexplainstheframeworkofane-power-plantanditsinformationsystem,putsforwardtheguidelineandthegeneralgoalofinformatizationconstructionwhilefocusingontheconstructiongoalintheappliedsystem,theimplementingstrategy,theprojectmanagementandorganization.

简介：Summary1.Thereare12powersystemsincluding5regionalpowersystemswithover1000MWofcapacityeach.In1989CentralandEastChinapowersystemswereinterconnectedbya±500kVHVDCLine.2.Thehierarchicalcontrolorganizationcanbedividedinto5levels,i.e.NCC,6RCCs,25PCCs,250DCCsandmorethan2000CCCs.3.AllcontrolcenterswillbeequippedwithSCADAandEMSinthenearfuture.4.Chinapowersystemhasalarge,dedicatedcommunicationnetworkofitsown.

简介：Thearticleintroducesradontransformofimageaswellasamethodtocalculategeometricmomentsunderradontransform.Bymakinguseoftheanti-interferencecharacterofRadontransform,thispaperpresentsamethodofextractingimage'smomentfeature,whichcangetamomentfeaturematrixofimageunderRadontransform,aswellasamethodtorecognizeimagebyusingtheSVofthismatrix.

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简介：Distributedgeneration(DG)willchangecharacteristicsofpowerflowandfaultsoftraditionaldistributionnetworkaswellasthenetworkoperationmode,especiallytheoperationofrelayprotectionandautomaticcircuitbreakerre-closing.Inthispaper,thecharacteristicsandinfluencesofseveraltypesofdistributedgenerationandconnectionpattern,relayprotectionandautomaticcircuitbreakerre-closingareanalyzed.Standardsofrelayprotectionwhendistributedgenerationaccesstodistributionnetworkarediscussedaswell.

简介：Aco-operativecontracttosetupChina’slargestjoint-venturepowerprojectinShandongProvince,wasinitiatedby.fourpartnersonJune7atBeijing’sGreatHallofthePeople.Theproject’stotalinvestmentisexpectedtobeabout$2.3billion,ofwhichalittleover$1billionwillberaisedoverseas.ThepartnersinthemassivepowerprojectsareShandongElectricPowerCorp,ShandongInternationalTrustandInvestmentCorp,ElectricitedeFrance

简介：Uptothefifties,bulkoilcircultbreaker（c.b.）wasthemainbreakertypeusedinChina.Fromthesixtieson,allEHVc.b.wereair-blasttype,butowingtotheirairleakageandfrequentmaintenanceworkrequired,alotofminimumoilc.b.wereimported;intheseventies,minimumoilc.b.wasthemainbreakertypeusedalloverthecountryinthevoltagerangeof6-220kV;atthebeginningoftheeighties,500kVSF6.c.b.wereputinserviceandgraduallyex-tendeddownto220kV,110kVandevento10kV,theirnumberisincreasing.Atthesametime,mediumvoltagevacuumc.b.beganto

简介：1.ThepresentmanufacturingsituationofChina’sthermalpowergenerationequipmentBytheyear1995.developmentofChina’selectricpowerindustryhasexperiencedacourseofahundredyears.Overaperiodoftheinitial50years.China’sdevelopmentofelectricpowerwasslow.Atthetimeof1949,thetotalinstalledcapacityinChinawas1,850MWandtheelectricitygeneratedwasonly4.3billionkWh.Duringthepast46yearsafter1949,herannual

简介：1.Throughtheconstructionduringthelastfourtyyearsandespeciallyundertheguidanceofthe“Reformandopening”policy,thepowergenerationequipmentmanufacturingindustryofChinahasachievedtremendousdevelopmentinthe1980’s.Whateverin