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1,2,1(1.,710032;2.,710032):、,,MESH。,、、(EPON),,,EPON,。:;EPON;;:TN915.5:B:1005-7641(2010)02-0012-0731208Vol.31No.2082010210TelecommunicationsforElectricPowerSystemFeb.10,20100,。、、,,,、、。、,、,、、、,、、、、,、。,,——,、、。1110kV95%,35kV52%。7,2622M330kV,5155M110kV,,“,”。,,MESH,。、,、GPRS、、230MHz。、230MHz。,22%,,,,。,(PON,PassiveOpticalNetwork)、、3G、WiMAX,。2,MESH,,“,”,4,“、”,,。“”330kV、,“”SDH,。1。,“12··”,92.5Gbit/s,10Gbit/s,、。110kV、,,330kVMESH,、、、,。1Fig.1Intelligentbackbonetransmissionnetwork(ASON),,,,,,,。、、、,MESH,ASON+SDH,,。、,SDH。,,,,,。33.1,。。10kV、,10kV、、。、、、、,。1)。,,,。2)。,、,,,。、,、。3)。,,,,,。,。4)。,。,,,。5)。,,,。,,,。3.2、,。,,,。,SDH/MSTP、、EPON、230M、GPRS、SCDMA··13··、OPPC();,、EPON、SCDMA、、。:OPPC;10kV;,,/,,、,,。、,,。、、,、;、,、。、。,、,、、,、、,,,,,,,,,、。3.335kV、10kV400V。,,。、、。,,。,。1)、。2)。3)。4),。。1~500kHz,1.5~10kbit/s,(OFDM,OrthogonalFrequencyDivisionMultiplex-ing),,,,,,。1~30MHz,1~200Mbit/s,(DMT),,。1~30MHz,2561024(24Mbit/s,200Mbit/s),,,,。,,。;,。、,;,,,。3.4EPON,、、、。,。(AON,ActiveOpticalNet-work)。PONAPON,BPON,EPONGPON。20103120814··,EPONIP,;GPON。EPON,。EPON(OLT,OpticalLineTerm)、(ONU,OpticalNetworkUnit)(POS,PassiveOpticalSplitter)。OLT;ONU(FTU、TTU、);POS,OLTONU,。EPON,ONULLID,ONU,;TDMA(TimeDivisionMultipleAccess,),ONU,,。EPON,2(1310nm,1490nm),1550nm。OLT,,(PON)、1Gbit/s10Gbit/s,WDM(Wavelength-DivisionMulti-plexing,),AT,FROC3/12/48/192SONET。TDM(TimeDivisionMultiplexandMulti-plexer,),TDM(T1/E1)。OLTQoS/SLA、。OLTOLC(OpticalLineCard,),OLCONUPOS,OLTONU20km。,IP、、OLT,,1∶NPONONU。,ONU1∶N,,OLT。EPON。1),,,。EPON,,,,;EPON,,,,;EPON,,IP。2)。EPON1.25Gbit/s,10Gbit/s。3),。EPON,,,。4)。PON,,。5),。EPON,DBA(DynamicBandwidthAlgorithm,),DiffServ(DifferentiatedService,),PQ/WFQ,WRED(WeightedRandomEarlyDetection,),QoS。6)EPON,IEEE802.3ah,PON,EPON、PON。7)。EPON、、、、,ONUPON。EPON。1)。,,。2)。,ONU,。3)MPCP(Multi-PointControlProtocol,··15··)。,OLT。4)。OAM(Operation,Ad-ministrationandMaintenance,)。EPON,,,,,,、,。3.5,,,。,,OLT。EPON,,,。,(EPON),。,,。,,IP,RRPP(RapidRingProtectionProto-col,)ms,,。RRPP,,。2。HELLO,HELLO,,;HELLO,,。(),,Link-down,,,,。,,,RRPP。HELLO,HELLO,,,,,。RRPP,,。3.66110kV、23、402,——110kV—4,、,。110kV,,,。,OLT,110kV,4,10kV,,110kV,4,8~10,10~20km,,RRPP,ms。,,16,10kV,10kV,,。RJ-45RS-485,ONU,。3.7EPON20103120816··。,EPON,,(、);、ONUONU;ONU。EPON,,,。,,。,EPON,VLAN(VirtualLocalAreaNetwork,)、ACL(AccessControlList,)、(QoS)、IGMP(InternetGroupManagementProtocol,)Proxy/、、802.3ad、Mac/。QoS。,,,。、、,,、,、,。,GPRS,,GPRS。,,,,,。3.8、、,4,,IP,。。1)。RRPP,ms,。2)。,,,,。3)。,,,2(4),2G(4G),,。,。4),,。4,,,,,;,,、;,;,。,、、、、、、、、、“”,。[1].[J].,1999(3):1-4.[2],.[M].:,1981.[3],.[M].:,1990.[4],.[M].:,1991.[5].[J].,2008(3):25-27.[6]IEEEStd.802.16-2004.IEEEstandardforinformationtechnology[S].2004.[7]DAVIDG,JINWOOC.TDM-PONsecurityissues:up-streamencryptionisneeded[C].ProceedingsofIEEE/OSAOFC,2007.··17··PlanofXi′ancommunicationtransmissionnetworksuitedforsmartgridLIANGZhi-xian1,WEIMing-hai2,WANGJian1(1.Xi′anPowerSupplyBureau,Xi′an710032,China;2.ShaanxiElectricPowerICTCenter,Xi′an710032,China)Abstract:ThispaperanalyzesthecurrentsituationofpowercommunicationnetworkinXi′anarea.Basedontherequirementofsmartgridconstruction,itputsforwardaplanthattheintelligentopticalequipmentwillbeusedtoconstructMESHnetwork.Thepaperanalysestherequirementofpowertransmissionanddistributionnetwork,discussesthecommunicationmodes,powerlinecommunications,passiveopticalnetwork(EPON)technologyaswellasthecharacteristicsofnetworking.AnintegratedschemeofbroadbandandnarrowbandpowerlinecarrierforusersidecommunicationandlayerednetworkingschemebasedonEPONforaccesslayerofdistributionnetworkarealsoproposedinthepaper.Keywords:smartgrid;EPON;powerlinecarrier;electricityutilizationinformationcollectionChallengesandsecuritytypesofICS/MCSDINGDao-qi(StateGridInformation&CommunicationCo.,Ltd.,Beijing100761,China)Abstract:ThispaperanalysesthesecurityattributesandtypesofICS/MCS,anddiscussesthechallengesthatICS/MCSsafeoperationisfacing.ItpointsoutthattherecentMCScannotmeettheneedsof3Spowergrid,andduetohighintensivelyofICS,thecomplexityofthenewtechnologymaybringnewvulnerability.ThenextICSinfrastructuremusthavehigherperformance,safetyandqualitysoastosupportthesystemreconstructionandthedatarecoveryofMCS.Thepaperalsopointsoutthattherecenton-linecontrolisnotabletoavoidpowersystemcollapse,thein-depthanalysisandpracticetestsarealsoneedforon-linecontrol,andMASandDAAmightbetheeffectivemethodofriskassessmenton3SbasedonthemutualdependenceofEPS,ICS,andMCS.Keywords:informationandtelecommunication;powergridsecurity;architecture;upgrading;riskassessment[5]CIGRE.Cybersecurityconsiderationsinpowersystemoperations[C].CIGREJointWorkingGroupD2-B3-C2.01,Electra,no.218,Feb.2005.[6]STEFANINIAlberto,MASERAM.Thesecurityofpowersystemandtheroleofinformation&communicationtechnologies:lessonsfromrecentblackouts[J].Interna-tionalJournalofCriticalInfrastructure,2008Vol.4(No.1-2):32-45.[7]KAMWAI,GRONDINR.PMUconfigurationforsys-temdynamicperformancemeasurementinlargemultiareapowersystems[J].IEEETransactionsonPowerSystems,Vol.17,No.2,May,2003.[8]STEFANINIA,SERVIDAA.ThefutureofICTforpowersystems:emergingsecuritychallenges[DB/OL].
本文标题:西安地区智能电网通信传输网架建设规划
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