基于PROFIBUS通信的電機(jī)綜合保護(hù).pdf

1、學(xué)校代號：學(xué)號：密級：10532S03091036湖南大學(xué)碩士學(xué)位論文Y893121基于PROFIBUS通信的電機(jī)綜合保護(hù)堂焦宴填厶絲名；割查毽昱啞娃名墅驅(qū)整!金塑廷教援墻差皇僮；曳氫皇信息至程堂瞳童些名疊!控制堡途量控制工程迨窒提童旦期；2QQ生4旦!Q目迨窒簦塑目期12QQ生5旦18旦鳘整委雖盒圭應(yīng)!彭楚武熬援AbstractMotoristhemostwidelyuseddynamicequipmentinallfields，wh

2、osemethodofprotectionhasbeenpayedcloselyattentionformanyyearsallovertheworldNowadays，asthefastdevelopmentofthetechnologyofcomputerandcontroltheory，anewmethodofcomputercomprehensivemotorprotectionhasappeared，whichhasmorep

3、owerfullogicanalosischaracterandfunctioncomparedwiththeformermotorprotectionAtthesametime，thesenewmotorprotectionscanrecordandanalysethefaultsFurthermore，theycanbeconnectedbyanetwork，forthepurposeofbeingeasilycontolledAn

4、d，thisdirctionofdevelopmenthasbeenthemajordirectionofthisrelmThispaperbeginsthestudyofcomprehensivemotorprotectionbasedonthisbackgroundAtfirst，thispaperusethetheoryofSymmetricalcomponentsmethodanalysevarietiesofsymmetric

5、alandasymmetricalfaultsofmotorandadoptthemeasuringmethodofnegativeandzerosequenceEspeciallystudydeeplyintheoverloadprotectionTheprotectionsystemcandealwiththefollowingmotorfaults：heavyover—current，over／under—voltage，over

6、current，currentunbalanceprotection，repeatedstartings，earthfaultandSOonAfteranalyseseveralprotectionalgorithms，thispaperadoptanewfastalgorithmswhichisdevelopedfromhalfwaveFourierialgorithmsandMann—Morrisonalgorithms，andwh

7、ichensurethereliabilityandrealtimeofthecomprehensivemotorprotectionsystemThiscomprehensivemotorprotectionsystemuses80C196KS16bitsMCUasitsCPU，makingfulluseofit’Spowerfulcapturefunctiontooutsideeventandstrongabilityoftreat

8、menttosignaltodesignanewtypeofmotorprotectivedeviceThiscomprehensivemotorprotectionsystemconstructaPROFIBUSstationusingPROFIBUSprotocolchipSPC3and89C52UsingthetechnologyofPROFIBUSbustobuildacommunicationnetwork，makingitf

9、romthetraditionalprotectivedevicechangedtoanewtypeofintelligentmotorremoteunitwhichhavingthefunctionofmeasurement，control，faultdiagnosisandcommunicationIntheprocessofthesoftwareandhardwaredesignoftheprotectionsystem，mani

10、foldselfcheckederrorwaysandantijammingmeasuresareadoptedtoenhancereliabilityandstabilityofthecontrolnetworksystemrunningatthespotAfterthewholedesignoftheprotectionsystemarecompleted，thesingleandunitedprotectionexperiment