Interconnection System Impact Study - BC Hydro ?· British Columbia Hydro and Power Authority ... Interconnection…

  • Published on
    01-Sep-2018

  • View
    212

  • Download
    0

Embed Size (px)

Transcript

<ul><li><p>InterconnectionSystemImpactStudy</p><p> SeptimusCreekWindProject</p><p>ReportNo:T&amp;SPlanning2014068</p><p>November2014</p><p>BritishColumbiaHydroandPowerAuthorityBritishColumbiaHydroandPowerAuthority2014.Allrightsreserved.</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. i</p><p> ACKNOWLEDGEMENTS</p><p> This report was prepared and reviewed by T&amp;D, Interconnection Planning and approved by bothInterconnectionPlanningandTransmissionGeneratorInterconnections. </p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. ii</p><p>RevisionTable </p><p>RevisionNumber DateofRevision RevisedBy </p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. iii</p><p>DISCLAIMEROFWARRANTY,LIMITATIONOFLIABILITYThis reportwaspreparedby theBritishColumbiaHydroAndPowerAuthority (BCH)or,as thecasemaybe,onbehalfofBCHbypersonsorentities including,without limitation,personsorentitieswhoare or were employees, agents, consultants, contractors, subcontractors, professional advisers orrepresentativesof,orto,BCH(individuallyandcollectively,BCHPersonnel).Thisreportistobereadinthecontextofthemethodology,proceduresandtechniquesused,BCHsorBCHsPersonnelsassumptions,andthecircumstancesandconstraintsunderwhichBCHsmandatetopreparethisreportwasperformed.Thisreportiswrittensolelyforthepurposeexpresslystatedinthisreport, and for the sole and exclusive benefit of the person or entitywho directly engaged BCH toprepare this report. Accordingly, this report is suitableonly for suchpurpose, and is subject to anychangesarisingafterthedateofthisreport.Thisreportismeanttobereadasawhole,andaccordinglynosectionorpartofitshouldbereadorrelieduponoutofcontext.UnlessotherwiseexpresslyagreedbyBCH:1. anyassumption,dataorinformation(whetherembodiedintangibleorelectronicform)suppliedby,</p><p>or gathered from, any source (including, without limitation, any consultant, contractor orsubcontractor, testing laboratory and equipment suppliers, etc.) upon which BCHs opinion orconclusion as setout in this report isbased (individually and collectively, Information)hasnotbeen verified by BCH or BCHs Personnel; BCH makes no representation as to its accuracy orcompletenessanddisclaimsallliabilitywithrespecttotheInformation;</p><p>2. except as expressly set out in this report, all terms, conditions,warranties, representations and</p><p>statements(whetherexpress,implied,written,oral,collateral,statutoryorotherwise)areexcludedtothemaximumextentpermittedbylawand,totheextenttheycannotbeexcluded,BCHdisclaimsallliabilityinrelationtothemtothemaximumextentpermittedbylaw;</p><p>3. BCHdoesnotrepresentorwarranttheaccuracy,completeness,merchantability,fitnessforpurpose</p><p>orusefulnessofthisreport,oranyinformationcontainedinthisreport,foruseorconsiderationbyanypersonorentity.InadditionBCHdoesnotacceptanyliabilityarisingoutofreliancebyapersonorentityonthisreport,oranyinformationcontainedinthisreport,orforanyerrorsoromissionsinthisreport.Anyuse,relianceorpublicationbyanypersonorentityofthisreportoranypartofitisattheirownrisk;and</p><p>4. InnoeventwillBCHorBCHsPersonnelbeliabletoanyrecipientofthisreportforanydamage,loss,</p><p>cost,expense, injuryorother liabilitythatarisesoutofor inconnectionwiththisreport including,without limitation, any indirect, special, incidental, punitive or consequential loss, liability ordamageofanykind.</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. iv</p><p>COPYRIGHTNOTICECopyrightandallother intellectualpropertyrights in,and to, thisreportare thepropertyof,andareexpressly reserved to,BCH.Without thepriorwrittenapprovalofBCH,nopartof this reportmaybereproduced,usedordistributedinanymannerorformwhatsoever. </p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. v</p><p>EXECUTIVESUMMARY</p><p>theInterconnectionCustomer(IC),isproposingSeptimusCreekwind farm (SCW) in the PeaceRiver regionofBritishColumbia. Thewindproject consistsof 7windturbines each rated at 2.05MW. The PointofInterconnection (POI) is on the 138 kV circuit 1L377betweenTaylor (TAY)andDawson (DAW) substations,9.5 km fromTAY. TheCommercialOperationDate(COD)proposedbytheICisJune22015.Thisreportdocumentstheevaluationofthesystemimpactofinterconnectingtheproposedgenerationfacilitiesandidentifiestherequiredsystemmodificationstoobtainacceptablesystemperformancewiththe interconnectionofthesubjectproject.To interconnecttheICsprojectand itsfacilitiestotheBCHTransmission System, this System Impact Study (SIS) has identified the following conclusions andrequirements: Therearenounacceptableprecontingencyor single contingency (N1) steadystateoverloadsor</p><p>voltage conditions observed for the proposedmaximum power injection from SCW. Hence, notransmissionelementwouldneedtobeupgraded.</p><p> InordertoconnectSCWtotheTransmissionSystemusingatapon1L377,the lineprotectionfor1L377needstobereplacedwithatelecommunicationassistedscheme.Anewmicrowavebackbonesystemintheareaisbeingimplementedinaseparateproject(PeaseRegionLoadSheddingRAS,orPRLS)andthescheduledinservicedateofthenewmicrowavesystemisearly2016.</p><p> SeptimusWindwillneed toestablisha frequencydiversitymicrowave link to thenewmicrowavesystem. Because of this dependency, the ICs proposed inservice date of June 2015 is notachievable.</p><p> AtransfertripfromTAYtotheSCW138kVcircuitbreakerwillbeneededtoisolatethewindfarmwhen 1L377 is disconnected from the system due to protective and nonprotective tripping.EquipmentadditionandreplacementwillberequiredatTAYandDAWsubstations.</p><p> Theexisting1L377lineterminalSurgeArresteratDAWwillneedtobereplacedwitha132kVratedSAIECclass3.</p><p>Thegood faithnonbindingcostestimate tocomplete theBCHydrosNetworkUpgrades required forSeptimus connection is$3.09million. The Interconnection Facilities Study reportwillprovide greaterdetailsofthenecessaryrequirementsandestimatedtimelineforthe interconnectionproject.BecausethisprojectdependsonthecompletionofanewmicrowavesystemfromthePRLSproject,theSeptimusWindproposedCODwillneedtoberescheduledtothe2ndhalfof2016.TheworkrequiredwithintheICfacilitiesisnotpartofthisestimateandschedule.</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. vi</p><p>TABLEOFCONTENTS</p><p>ACKNOWLEDGEMENTS....................................................................................................................IREVISIONTABLE..............................................................................................................................IIDISCLAIMEROFWARRANTY,LIMITATIONOFLIABILITY................................................................IIICOPYRIGHTNOTICE.......................................................................................................................IV1.0 INTRODUCTION.....................................................................................................12.0 PURPOSEOFSTUDY...............................................................................................33.0 TERMSOFREFERENCE...........................................................................................34.0 ASSUMPTIONS.......................................................................................................45.0 SYSTEMSTUDIESANDRESULTS............................................................................5</p><p>5.1 STEADYSTATEPOWERFLOWSTUDIES............................................................................5</p><p>5.2 TRANSIENTSTABILITYSTUDY.........................................................................................6</p><p>5.3 FAULTANALYSIS.........................................................................................................7</p><p>5.4 ANALYTICALSTUDIES...................................................................................................7</p><p>5.5 TRANSMISSIONLINEUPGRADES.....................................................................................8</p><p>5.6 BCHSTATIONUPGRADESORADDITIONS........................................................................8</p><p>5.7 PROTECTION&amp;CONTROLANDTELECOMMUNICATIONS......................................................8</p><p>5.8 ISLANDING...............................................................................................................10</p><p>5.9 BLACKSTARTCAPABILITY...........................................................................................10</p><p>5.10 COSTESTIMATEANDSCHEDULE...................................................................................10</p><p>6.0 REVENUEMETERING...........................................................................................117.0 CONCLUSIONS&amp;DISCUSSION.............................................................................11APPENDIXAAREASINGLELINEDIAGRAM................................................................................12APPENDIXBDYNAMICSDATA...................................................................................................14APPENDIXCSELECTEDPSSEDYNAMICRESULTS.......................................................................15APPENDIXDTELECOMBLOCKDIAGRAM..................................................................................16APPENDIXEREVENUEMETERINGREQUIREMENTS..................................................................18</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. 1of19</p><p>1.0 INTRODUCTION</p><p> isproposingtodevelopawindfarmatSeptimusCreek inthePeaceRiverregion.SeptimusCreekwindfarmconsistsofsevenSenvionwindturbines.Thetotaloutputfromthesewindturbinesis14.35MW.ThegeneratedpowerwillflowalonganICbuilt,26.3km34.5kVfeedertoan ICbuiltstationnamedSeptimusCreekWind(SCW).Twomechanicallyswitchedcapacitorbankseachratedat2.6Mvarprovideadditionalreactivesupportonthe34.5kVsideofSCW.VoltageatSCWwillbesteppedupfrom34.5kVto138kV.AnICbuilt138kVoverheadtransmission line,0.5kmlong,connectsSCW to thePointofInterconnection (POI)on the138kVcircuit1L377betweenTaylor(TAY)andDawson(DAW)substations.ThePOIisatappointon1L377,9.5kmfromTAYand46kmfromDAW.Table1belowprovidesasummaryoftheproject:</p><p>Table1:SeptimusWindProjectInformationSummary</p><p>ProjectName SeptimusCreekWindProjectInterconnectionCustomer(IC) PointofInterconnection(POI) Atapon1L377,9.5kmfromTAYICProposedCOD June22015TypeofInterconnectionService NRIS ERIS MaximumPowerInjection(MW)* 13.5(Summer) 13.5(Winter)NumberofGeneratorUnits 7PlantFuel wind</p><p>*Note:Thetotalcapacityofthewindturbinesis14.35MW.Afteraccountingforlossesinsidethewindfarm,only13.5MWisavailableforinjectionintothegrid.</p><p> ThefollowingdiagramillustratestheconfigurationoftheSeptimusWindfarm.</p><p>Figure1:SketchofSeptimusCreekWindFarm SeptimusWindFarm is located inthePeaceRiverregion innorthernBritishColumbia,adynamicareawithmanynew load interconnectionsplusanumberofwindgenerationadditions.TheDawsonCreekandGroundbirchareasareexperiencingrapidloadgrowth.Mostofthesenewloadsareindustrialloadsandrequiretransmissionsystemreinforcementsinordertobeserved.</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. 2of19</p><p>Aregionaltransmissionreinforcementproject,referredtoasDawsonCreekAreaTransmissionproject(DCAT),isplannedtoprovidesupplycapacityfromthe230kVsystemoriginatedfromGordonMShrumgeneratingstation (GMS) to the138kVsystem.Theproject iscurrently in the implementationphase.TheproposedDCATproject includes anew substation Sundance Lakes (SLS)which is situated at theintersection of the existing 138 kV line 1L358 (between Chetwynd or CWD substation and BearMountainTerminalorBMT)and230kVline2L312(betweenSukunkaorSNK,andLouisiannaPacificorLAPsubstations),two60km230kVlinesfromSLStoBMT,anda12kmdoublecircuit230kVlinefromBMTtoDAWoperatedatthe138kVlevel.Thetwoexisting138kVlines,1L358(sectionfromSLSBMT)and1L362(BMTDAW)willbedecommissioned.RefertoFigure2below.InadditiontotheDCATproject, loadshedding isalsorequiredforcertaincontingentscenarios.PeaceRegion Load Shedding RAS, or PRLS, is the project to address violations caused by outages of keyregional transmission system elements. As part of the PRLS project, a newmicrowave system andrepeater stationswill be installed for the area. Thismicrowave systemwill provide a foundation tofacilitate theSeptimusCreekWind interconnectionviaa simple line tap.However, the scheduled inservicedateof themicrowavesystem is inearly2016,whichwillaffect theproposedSeptimusCreekWindCOD.Refer to Section5.7 formoredetails.The figurebelow shows thegeographic locationofSeptimusCreekWindIPPinthePeaceRiverregion.</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. 3of19</p><p>Figure2:PeaceRiverregionTransmissionSystemwithDCATandSeptimusCreekWindProject2.0 PURPOSEOFSTUDYThepurposeofthisstudyistoassesstheimpactontheBCHTransmissionSystemduetotheconnectionoftheSeptimusCreekWindFarm.Thisstudywill identifyconstraintsandNetworkUpgradesrequiredfor interconnecting thewind farm such that its performance is compliantwith theNorth AmericanElectricReliabilityCorporation (NERC) andWestern ElectricityCoordinatingCouncil (WECC) reliabilitystandards,andtheBCHtransmissionplanningcriteria.3.0 TERMSOFREFERENCEThis study investigates and addresses the overloading, voltage deviation and stability issues of thetransmissionnetwork in thePeaceRiver region asa resultof integrating SeptimusCreekwind farm.Topics studied includeequipment thermal loadingand rating requirements, system transient stabilityand voltage stability, transient overvoltages, protection coordination, operating flexibility, telecom</p></li><li><p>SeptimusCreekWindFarmInterconnectionSystemImpactStudy ReportNo.T&amp;SPlanning2014068</p><p>BritishColumbiaHydroandPowerAuthority,2014.Allrightsreserved. 4of19</p><p>requirements and high level requirements for Remedial Action Schemes (RAS). BCH planningmethodologyandcriteriaareusedinthestudies.TheSISdoesnot investigateoperating restrictionsandother factors forpossible second contingencyoutages. SubsequentBCHydrosystemstudieswilldeterminetherequirementsforreinforcementsoroperating restrictions/instructions for thosekindsofevents.Anyuseof firmornonfirm transmissiondeliverywillrequirefurtheranalysisspecifictothetransmissionservicethatmayberequestedlaterandwillbereviewedinaseparatestudy.DeterminationofanyupgradesontheICsfacilitiesisbeyondtheSISscope.The work necessary to implement the network improvements identified in this SIS report will bedescribedingreaterdetailintheInterconnectionFacilitiesStudyreportforthisproject.4.0 ASSUMPTIONSThestudywascarriedoutbasedonthemodel,dataandinformationsubmittedbytheICinMarch2014fortheSystemImpactStudy.Reasonableassumptionsaremadetocompletethestudywheneversuchinformat...</p></li></ul>