Wind Turbine – Converter Interaction PROMOTioN WP3

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PROMOTioN WP3- Wind turbines converter interactionBlack start capabilities ofHVDC connected offshore windpower plantsPoul Sørensen, DTU Wind Energy25 September 2018, Global Wind Summit 2018, Hamburg PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.

WP3 – Wind turbines converter interaction PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20182

PROMOTioN WP3Black Start by Offshore Wind TurbinesObjective:To avoid issues of nonoperating wind ective:To energize WPP andsubstations (AC andHVDC) auxilary w/oany external supplyStep 1Self-start ofWind Turbine-Wind turbines willstart w/o grid voltage-Wind turbines willsupply themselvesusing wind(houseload operation)Objective:To provide black startfor the onshore powersystemStep 2Self-Energization ofWind Power PlantStep 3Contribution to GridRestorationWPP will energize upto the onshore PoCWPP will operatesimilar to theconventional blackstart units PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20183

PROMOTioN WP3Offshore AC Network Start-up OptionsIn case of offshore grid outageOffshore Energy Source (e.g. diesel generator)EnergySourceIn case of normal conditionsEnergization from onshoreHVDC offshoreterminalESHVDC linkESVSC-MMCVSC-MMConshoreESIn case of offshore grid outage or collection system failureBlack-startable wind turbines PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20184

PROMOTioN WP3Generic Self-Energization rray C)ChopperBatteryenergy storage system(BESS)Grid-sideAuxiliariesVSC (GSC)ControllerUPSSelf-startType 4Variable-speedWind Turbine(WT) PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20185

PROMOTioN WP3Generic Self-Energization SequenceParalleloperationOffshore WindPower Plant(OWPP)Diesel generatorbackupOWPPsubstationDGExport cableArray rFilterWTTransformerArray C)ChopperBatteryenergy storage system(BESS)Grid-sideAuxiliariesVSC (GSC)ControllerUPSSelf-startType 4Variable-speedWind Turbine(WT) PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20186

PROMOTioN WP3Generic Self-Energization SequenceOffshoreGrid-forming& CIOOFFshore ONshoreOffshore HVDCsubstationDGWPP1BackupBackupPCCHVDCCable linkFilterFilterOFFshore SC(Inverter)OFFshore-VSC(Rectifier)Offshore WindPower Plant(OWPP)Diesel generatorbackupONshore convertertransformerOnshoreAC gridOWPPsubstationDGExport cableArray re HVDCsubstationFilterFilterWTTransformerArray C)ChopperBatteryenergy storage system(BESS)Grid-sideAuxiliariesVSC (GSC)ControllerUPSSelf-startType 4Variable-speedWind Turbine(WT) PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20187

PROMOTioN WP3Supply of Auxiliaries and Step Load ChangesWind turbine rotor side responseWT house-load(aux) 3-5%20% step P loadTorqueImpact on loadsto be investigated! PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20188

PROMOTioN WP3Ongoing: Black start simulation test on part of DK2Energinet plans Black StartSimulation Testwith Skagerrak 4 (SK4)HVDC interconnector(Norway-Denmark) outsidePROMOTioN projectSK4In PROMOTioN project:Black Start Simulation Testwith offshore WPPTo be energized; 3 buses Overheadline & undergroundcable Shunt reactor, transformer Step MW load Load stepwise changes Frequency & voltage setpointchanges Load atistik/el produktion og transmission 2017 300dpi.pdf] PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.20189

APPENDIXDISCLAIMER & PARTNERSCOPYRIGHTPARTNERSPROMOTioN – Progress on Meshed HVDC Offshore TransmissionNetworksMAIL [email protected] WEB www.promotion-offshore.netDNV GL Netherlands B.V., ABB AB, KU Leuven, KTH RoyalInstitute of Technology, EirGrid plc, SuperGrid Institute,Deutsche WindGuard GmbH, Mitsubishi Electric EuropeB.V., Affärsverket Svenska kraftnät, Alstom Grid UK Ltd(Trading as GE Grid Solutions), University of Aberdeen,Réseau de Transport d‘Électricité, Technische UniversiteitDelft, Statoil ASA, TenneT TSO B.V., Stiftung OFFSHOREWINDENERGIE, Siemens AG, Danmarks TekniskeUniversitet, Rheinisch-Westfälische Technische HochschuleAachen, Universitat Politècnica de València, SCiBreak AB,Forschungsgemeinschaft für. Elektrische Anlagen undStromwirtschaft e.V., Ørsted Wind Power A/S, The CarbonTrust, Tractebel Engineering S.A., European UniversityInstitute, Iberdrola Renovables Energía, S.A., EuropeanAssociation of the Electricity Transmission & DistributionEquipment and Services Industry, University of Strathclyde,ADWEN Offshore, S.L., Prysmian, RijksuniversiteitGroningen, MHI Vestas Offshore Wind AS, Energinet.dk,Scottish Hydro Electric Transmission plc, SCiBreak ABThe opinions in this presentation are those of the author and do notcommit in any way the European CommissionPROJECT COORDINATORDNV GL Netherlands B.V.Utrechtseweg 310, 6812 AR Arnhem, The NetherlandsTel 31 26 3 56 9111Webwww.dnvgl.com/energyCONTACT PROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 691714.25.09.201810

Black Start by Offshore Wind Turbines 25.09.2018 3 Step 1 Self-start of Wind Turbine Step 2 Self-Energization of Wind Power Plant Step 3 Contribution to Grid Restoration Objective: To avoid issues of non-operating wind turbines; - Moisture - Icing - Vibrations - Deformation Objective: T