电力系统继电保护第二版课后答案.docx

电力系统继电保护第二版课后答案.docx

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电力系统继电保护第二版课后答案

电力系统继电保护第二版课后答案

　　电力系统继电保护论文中英文资料Relayprotectiondevelopmentpresentsituation[Abstract]reviewedourcountryelectricalpowersystemrelayprotectiontechnologicaldevilorpimentprocess,hasoutlinedthemicrocomputerrelayprotectiontechnologyachievement,proposedthefuturerelayprotectiontechnologicaldevelopmenttendencywillbe:

Computerizes,nnetworked,protects,thecontrol,thesurvey,thedatacommunicationintegrationandtheartificialIintellectualization.[Keyword]relayprotectionpresentsituationdevelopment,relayprotectionsfuturedevelopment1relayprotectiondevelopmentpresentsituationTheelectricalpowersystemrapiddevelopmenttotherelayprotectionproposedunceasinglythenewrequest,theelectronictechnology,computertechnologyandthecommunicationrapiddevelopmentunceasinglyhaspouredintothenewvigorfortherelayprotectiontechnologydevelopment,therefore,therelayprotectiontechnologyisadvantageous,hascompletedthedevelopment4historicalstageinmorethan40yearstime.Afterthefoundingofthenation,ourcountryrelayprotectiondiscipline,therelayprotectiondesign,therelaymanufactureindustryandtherelayprotectiontechnicalteamgrowsoutofnothing,haspassedthroughthepathinabout10yearswhichadvancedcountrieshalfcenturypassesthrough.The50"s,ourcountryengineersandtechnicianscreativelyabsorption,thedigestion,havegraspedtheoverseasadvancedrelayprotectionequipmentperformanceandthemovementtechnology，completedtohavethedeeprelayprotectiontheoryattainmentsandtherichmovementexperiencerelayprotectiontechnicalteam,andgrewtheinstructionfunctiontothenationalrelayprotectiontechnicalteam"sestablishment.Theachengrelayfactoryintroductionhasdigestedatthattimetheoverseasadvancedrelaymanufacturetechnology,hasestablishedourcountryrelaymanufacturingindustry.Thusourcountryhascompletedtherelayprotectionresearch,thedesign,themanufacture,themovementandtheteachingcompletesysterninthe60"s.Thisisatimewhichthemechanicalandelectricalrelayprotectionprospers,wasourcountryrelayprotectiontechnologydevelopmenthaslaidthesolidfoundation.Fromtheendofthe50"s,thetransistorrelayprotectionwasstartingtostudy.Inthe60"stothe80"sinarethetimeswhichthetransistorrelayprotectionvigorousdevelopmentandwidelyuses.TianjinUniversityandtheNanjingelectricpowerautomationplantcooperationresearch500kvtransistordirectionhighfrequencyprotectionthetransistorhighfrequencyblocksystemwhichdevelopswiththeNanjingelectricpowerautomationresearchinstituteisawayfromtheprotection,movesontheGezhouDam500kvline,finishedthe500kvlineprotectiontodependuponcompletelyfromtheoverseasimporttime.Fromthe70"s,startedbasedontheintegrationoperationalamplifierintegratedcircuitprotectiontostudy.Hasformedthecompleteseriestoattheendof80’sintegratedcircuitprotection,substitutesforthetransistorprotectiongradually.Thedevelopment,theproduction,theapplicationtheintegratedcircuitprotectswhichtothebeginningofthe90"sstillwereinthedominantposition,thiswastheintegratedcircuitprotectiontime.TheintegratedelectricityroadworkfrequencyconversionquantitydirectiondevelopswhichinthisaspectNanjingelectricpowerautomationresearchinstitutehighfrequencyprotectedthevitalrole,theTianjinUniversityandtheNanjingelectricpowerautomationplantcooperationdevelopmentintegratedcircuitphasevoltagecompensatedthetypedirectionhighfrequencyprotectionalsomovesinmulti-strip220kvandonthe500kvline.Ourcountrynamelystartedthecomputerrelayprotectionresearchfromtheendofthe70’s，theinstitutionsofhigherlearningandthescientificresearchcourtyardinstituteforerunnersfunotion.HuazhongUniversityofScienceandTechnology,southeasttheuniversity,theNorthChinaelectricpowerinstitute,theXianJiaotongUniversity,theTianjinUniversity,ShanghaiJiaotongUniversity,theChongqingUniversityandtheNanjingelectricpowerautomationresearchinstituteoneafteranotherhasalldevelopedthedifferentprinciple,thedifferentpatternmicrocomputerprotectivedevice.In1984theoriginalNorthChinaelectricpowerinstitutedevelopedthetransmissionlinemicrocomputerprotectivedevicefirstthroughtheappraisal,andinthesystemthefindapplication,hadopenedinourcountryrelayprotectionhistorythenewpage,protectedthepromotionforthemicrocomputertopavetheway.Inthehostequipmentprotectionaspect,thegeneratorwhichsoutheasttheuniversityandHuazhongUniversityofScienceandTechnologydevelopslosesmagnetismprotection,thegeneratorprotectionandthegenerator?

Bankoftransformersprotectionalsooneafteranotherin1989，in1994throughappraisal,investmentmovement.TheNanjingelectricpowerautomationresearchinstitutedevelopsmicrocomputerlineprotectivedevicealsoin1991throughappraisal.TheTianjinUniversityandtheNanjingelectricpowerautomationplantcooperationdevelopmentmicrocomputerphasevoltagecompensatedthetypedirectionhighfrequencyprotection,theXianJiaotongUniversityandtheXuChangrelayfactorycooperationdevelopmentpositivesequencebreakdowncomponentdirectionhighfrequencyprotectionalsooneafteranotherin1993，in1996throughtheappraisal.Heres,thedifferentprinciple,thedifferenttypemicrocomputerlineandthehostequipmentprotectunique,providedonebatchofnewgenerationofperformancefortheelectricalpowersystemfine,thefunctionhasbeencomplete,theworkreliablerelayprotectioninstallment.Alongwiththemicrocomputerprotectivedeviceresearch,inmicrocomputeraspectandsoonprotectionsoftware,algorithmhasalsoyieldedtheverymanytheoriesresult.Maysaystartedourcountryrelayprotectiontechnologyfromthe90*stoenterthetimewhichthemicrocomputerprotected.2relayprotectionsfuturedevelopmentTherelayprotectiontechnologyfuturethetendencywillbetocomputerizes,networked,theintellectualization,willprotect,thecontrol,thesurveyandthedatacommunicationintegrationdevelopment.2.1computerizesAlongwiththecomputerhardwareswiftandviolentdevelopment,themicrocomputerprotectionhardwarealsounceasinglyisdeveloping.TheoriginalNorthChinaelectricpowerinstitutedevelopsthemicrocomputerlineprotectionhardwarehasexperienced3developmentphases:

Ispublishedfrom8listscpustructuremicrocomputerprotection,doesnotdevelopto5yearstimetothemulti-cpustructure,latterdevelopedtothemainlinedoesnotleavethemodulethebigmodularstructure,theperformanceenhancesgreatly,obtainedthewidespreadapplication.HuazhongUniversityofScienceandTechnologydevelopsthemicrocomputerprotectionalsoisfrom8cpu,developstotakethelaborcontrollingmachinecorepartiallyasthefoundation32microcomputersprotection.TheNanjingelectricpowerautomationresearchinstitutefromtheverybeginninghasdeveloped16cpuisthefoundationmicrocomputerlineprotection,obtainedthebigareapromotion,atpresentalsoisstudying32protectionshardwaresystem.Southeasttheuniversitydevelopsthemicrocomputerhostequipmentprotectsthehardwarealsopassedthroughimprovedandtheenhancementmanytimes.TheTianjinUniversityfromtheverybeginningisthedevelopmenttakemorethan16cpuasthefoundationmicrocomputerlineprotection,in1988namelystartedtostudytake32digitalsignalsprocessor（dsp）asthefoundationprotection,thecontrol,thesurveyintegrationmicrocomputerinstallment,atpresentcooperatedwiththeZhuhaiJinautomaticequipmentcompanydevelopsonekindoffunctioncomplete32bigmodules,amodulewasaminicomputer.Uses32microcomputerschipsonlytofocusbynomeansontheprecision,becauseoftheprecisionthea/dswitchresolutionlimit,issurpassedtime16allisacceptswithdifficultyintheconversionrateandthecostaspect;32microcomputerschipshavetheveryhighintegrationratemoreimportantly,veryhighoperatingfrequencyandcomputationspeed,verybigaddressingspace,richcommandsystemandmanyinputsoutlet.Thecpuregister,thedatabus,theaddressbusallare32，hasthememorymanagementfunction,thememoryprotectionfunctionandthedutytransformationfunction,and（cache）andthefloatingnumberpartallintegratesthehighspeedbufferincpu.Theelectricalpowersystemtherequestwhichprotectstothemicrocomputerenhancesunceasingly,besidesprotectionbasicfunction,butalsoshouldhavethelargecapacitybreakdowninformationandthedatalong-termstoragespace,thefastdataprocessingfunction,theformidabletrafficcapacity,withotherprotections,thecontroldeviceanddispatchesthenetworkingbytosharetheentiresystemdata,theinformationandthenetworkresourcesability,thehigherorderlanguageprogrammingandsoon.Thisrequeststhemicrocomputerprotectivedevicetohaveisequaltoapcmachinefunction.Inthecomputerprotectiondevelopmentinitialperiod,onceconceivedhasmadetherelayprotectioninstallmentwithaminicomputer.Atthattimebecausethesmallmachinevolumebig,thecosthigh,thereliabilitywasbad,thistentativeplanwasnotrealistic.Now,withthemicrocomputerprotectivedevicesizesimilarlaborcontrollingmachinefunction,thespeed,thestoragecapacitygreatlyhassurpassedthesameyearsmallmachine,therefore,madetherelayprotectionwithcompletesetlaborcontrollingmachinetheopportunityalreadytobemature,thiswillbeoneofdevelopmentdirectionswhichthemicrocomputer