礦用隔爆型高壓開關(guān)智能綜合保護(hù)系統(tǒng)的開發(fā).pdf

1、河北工業(yè)大學(xué)碩士學(xué)位論文礦用隔爆型高壓開關(guān)智能綜合保護(hù)系統(tǒng)的開發(fā)姓名：陳偉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：檢測技術(shù)與自動(dòng)化裝置指導(dǎo)教師：張英20070101河北工業(yè)大學(xué)碩士學(xué)位論文vDEVELOPMENTOFINTELLIGENTSYNTHETICPROTECTIONSYSTEMFHIGHVOLTAGEFLAMEPROOFSWITCHGEARINUNDERGROUNDMINEABSTRACTWiththedevelopmentofmicropr

2、ocessrelayprotectionmanynewrelayprinciplesschemesaregotmemeattentiontheyarealsoputintopracticestepbystep.Howeverwhentheperfmanceofrelayprotectiondevicesareimprovedbythesenewmethodsthehigherprecisionspeedincalculationmead

3、dressingspacearerequiredtotheserelayprotectiondevicesthusthebetterhardwareofthesedevicesareneeded.Aimingattheseproblemsanewschemeofmicroprocessrelayprotectionisproposedinthispaperdesignsamicroprocessbasedprotectionsystem

4、whichusingdoubleCPUsonthebaseofDSPsinglechipmicrocomputer.AsthemainCPUDSPcompletessuchfunctionsassamplingdataprocessingdataprotection.8051，asthesecondlyCPUtakesresponsibilityofconversationalfunctionbetweenmanPCsuchasdeal

5、ingwithkeyboardLCDcommunication.WiththeexcellenceofparallelwkingcooperatingbydividingwkthedualCPUsystemcanrealizehighaccuracyofrealtimemeasuringaswellasitcanensurethefastrunningabilityivitysensitivityreliabilityofrelayin

6、gprotect.AccdingtotheactualsituationsinundergroundHVdistributionwkstheacteristicsoftheelectricalfaultsoccuredinthesystemaretheeticallyanalyzedrelevantprotectiveprinciplescontrolstrategiesareproposedonthebasisofnationalre

7、lativestards.Especiallyaccdingtothepresentsituationthatneutralpointgroundedsystemthrougharcsuppressioncoilareusedinmanysupperbigshafttheiveleakageprotectivemethodbasedonharmonicdirectionofthezerosequencecurrentaswellasth

8、evalueofzerosequencevoltageispresented.Thestabilityreliabilityofhardwareisveryimptanttotheimplementationofprotectionfunctions.ThedesigneddevicebasedondualCPUstructure:DSPMCS51isasyntheticallineprotectionincludingmeasurem

9、entcontrol.DSPisusedtoacceleratedataprocessingdualCPUconfigurationcanincreasethereliabilityofthedevice.Meover，relayprotection、measurement、control、datacommunicationfunctionareinvolvedasawholeunitinthisdeviceffulfillingthe