ieee+1588时间精确同步协议在电力系统应用的可行性研究

上海交通大学硕士学位论文IEEE1588时间精确同步协议（PTP）在电力系统应用的可行性研究姓名：陈永标申请学位级别：硕士专业：控制理论与控制工程指导教师：方兴其20090101IIEEE1588(PTP)2002IEEE1588PTPPTPPTPIEEE1588IIIEEE1588PTPIIIFEASIBILITYSTUDYUPONTHEAPPLICATIONOFIEEE1588PRECISIONTIMESYNCHRONIZATIONPROTOCOL(PTP)INELECTRICPOWERSYSTEMABSTRACTTheexpansionscaleofpowersystemanddevelopmentofcontroltechnologiesinpowersystemputforwardnewrequirementsontimebaseinpowerdispatchingsystemaswellaspowerplantsandsubstations.Infact,duetohugeinformationexchangeinsidepowersystemandrapidstatechange,onlytomeetcertainprecisiondegreeofclocksynchronizationcanwemakesuredifferentfunctionsworkwellinpowersystem,suchasthephasecomparison,failuretrackrecording,startsequenceofdifferenteventsandsoon.Therefore,inordertofurtherimprovepowersystemoperationmanagementlevelandtomeettherapiddevelopmentrequirementsofpowersystemaswellastoimprovethesystem'sabilitytocontrolandfailureanalysiscapabilities,wemustfirstprovideaunifiedsystemclockinordertosynchronizetheclocksdistributedinallsitesoftheinternalcontrolsystem.TheoccurrenceofIEEE1588precisiontimesynchronizationprotocolin2002anditshighaccuracyandlowcostprovideapracticalandfeasiblewaytomeethighprecisiontimesynchronizationapplicationsincertainfields.IVThispaperfirstlyoutlinesthebasicconceptsoftimesynchronizationanddevelopmentoftimesynchronizationtechnology,thenanalyzesandresearchesthePTPclocksynchronizationcommunicationmechanism,bestmasterclockalgorithm,aswellasthePTPmessagingandinternaleventsinacomprehensivesystematicway.Onthisbasis,takingthePTPtimesynchronizationitselfcharacteristics,suchashighprecision,simpleoperationandlowcostaswellasthecurrenttimesynchronizationtechnologyinthepowersystemapplicationsandthelimitationsofexistingproblemsintoconsideration,weanalyzeandpointoutthattheadoptionofIEEE1588timesynchronizationstandardasthepowersystemtimesynchronizationschemecannotonlygreatlyimprovethetimesynchronizationprecisionbetweenvariouselectricalequipmentwithinthepowersystem,ensuretheaccuracyoflinefaultlocatingandpowerparameterschecking,improvethefaultanalysisabilityofpowergridandstabilitycontrollevel,butalsoreducetheestablishmentcostoftimesynchronizationsystem,aswellasmakethereplacementandupgradingofsystemtimebasebecomerelativelysimpleandeasy.Keywords:TimeSynchronization,IEEE1588,PTP,PowerSystem200922_____20092220092211.1[1]1.22GPSGPSNTPNetworkTimeProtocolNTP[2]2002IEEE158815881.3IEEE1588AgilentLaboratoriesJohnEidson12IEEE200211IEEEIEEE15881.3.1IEEE15882003ODVACIPCommonindustrialProtocolCIPSyncEthernet/IP-CIP100MbpsCIPSync500ns3EPSGEthernetPowerlinkEPLEthernetPowerlinkIEEE1588EPLEPLASICsIEEE1588PROFInetV3BeckhoffJetterEtherCATASIC1.3.2HirschmannIEEE15881-1IEEE1588[]HirschmannMiceIEEE1588±10023.954.248IEEE1588PTP/MACPHYMIIRXTX1-1HirschmannFig.1-1ModelofHirschmannSynchronousComponent4RockwellAutomationIEEE15881-2SERCOSSERCOS50MHzPowerPCCPUIEEE1588SERCOSSERCOSSERCOS1-2RockwellFig.1-2ModulediagramofRockwellControllerIEEE1588IEEE158820049NISTIEEE158851.4IEEE1588NTPIEEE1588NTPIEEE1588PTPPTPPTPPTPPTPIEEE1588IEEE158862.1[4]1)GPSUTC910−610−2)610−310−3)GPSUTC72.22-1GPSl0M/l00M101[5]1243......2-1Fig.2-1Typicalsystemofconventionaltimesynchronization1~1002.3NTPNTPNetworkTimeProtocol8[6]NTPDelawareMills1982202001NTPv4200NTP-SNTPNTPInternetNTPv32.3.1NTPNTP//////2.3.2NTPNTPUTCNTPUTCStratumUTCStratum2-2NTP9GPSStratum0Stratum3Stratum2Stratum12-2NTPFig.2-2ArchitectureofNTPnetwork1GPSNTPUTCStratumGPSUTCNTP2.3.3NTPNTP/NTPNTPNTP2-310δδNTPNTP1Tθ+1Tθ−3T3T2T4T1T4T2T3T2-3NTPFig.2-3PrincipleofNTPoperation2-31T2T3T4T1T4T2T3T()()+−=++=δθδθ3412TTTTθδ()()()()−−−=−+−=2234123412TTTTTTTTθδθδ2T1T3T4T3T2T4θδ2.4IEEE1588IEEE1588-PrecisionTimeProtocolPTP11[7]2.4.1IEEE15882001618IEEE200212IEEE1588[8]IEEE1588IEEE15882.4.2IEEE1588IEEE1588PTP-PrecisionTimeProtocol1)NTP2)NTPGPSIEEE1588IEEE1588GPS123)4)IEEE1588TCP/IPIEEE1588PowerlinkEtherCat5)6)2.4.3PTPIEEE1588IEEE1588Message-basedIEEE1588[9]IEEE1588OrdinaryClockBoundaryClockPTPPTPPTPPTP_MASTERPTP_SLAVEPTP_PASSIVEPTPMASTERCLOCKSLAVECLOCKPTPPTPPTPPTPMaster-SlaveIEEE1588SyncFollow_UpDelay_ReqDelay_Resp1)2-42SyncsequenceIdMIISync1TFollow_Up1TAssociateSequenceIdSyncsequenceIdPTP13Sync2TSyncFollow_Up1T2T2)Delay_ReqDelay_RespPTPIEEE15881Sync2Sync3SyncFollow_Up4Delay_Req5Delay_RespPHYMIIMASTERIEEE15881Sync2Sync3Follow_Up4Delay_Req5Delay_Resp6PHYMIISLAVE2-4PTPFig.2-4ModelofPTPclocksynchronization2.5PTPNTP/round-tripNTPIPUDP14NTPNTPNTP1T-4T/PTPNTPNTPNTPNTPnsms2-5Fig.2-5TimedeviationindifferentlayerofprotocolstackNTPIEEE1588SyncFollow_Up151)2-6Follow_UpSyncSyncMIIDelay_ReqDelay_Resp2-6[10]t1t3t2t4PTPMIIPTPMIISyncFollow_Upt1Delay_ReqDelay_Respt42-6IEEE1588Fig.2-6ImplementationmechanismofIEEE1588timesynchronization2)--IEEE1588162.6NTPIEEE1588NTP17IEEE15883.1IEEE1588IEEE1588PTP[11]PTP3.1.1PTPPTPPTPPTPPTPPTPPTPPTPPTPIEEE1588PTP3-1PTPPTP18567814131591011121234PTPAPTPBPTPCPTPD3-1Fig.3-1Typicalsystemofsynchronizedclocks-3-114PTPA3-113A14B5814D153-11314B1315D[12]PTPPTPPTPPTPPTPPTPPTP3-2131415PTP3-2PTP141519567814131591011121234PTPAPTPBPTPCPTPD3-2Fig.3-2ProhibitedtopologyPTPPTPPTPPT