Cable Systems For HVDC Power Transmission
Cable systems for HVDC power transmissionHong He, René SmeetsKEMA Labs, the Netherlands 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.
CONTENT Introduction Recommendations and standards Testing DC cable systems Future outlooknkt 525 kV HVDC XLPE cable 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 691714.19.02.202
Introduction: HVDC Cable systemsHVDC cable systemsCablesMass-impregnated paper-lapped cable (MI)Oil filled cable (OF)Extruded cable (XLPE)Superconductive cableAccessoriesTerminationsOutdoor terminationGIS terminationMI DC cable: 2.2 GW at 600 kVXLPE DC cable: 2 GW at 320 kV (2015); 1 GW at 400 kV (2019) 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.JointsFactoryjointFieldjointStraight jointTransition joint03.05.163
Recommendations and standardsJWG B4/C1.65: TB 684Recommended voltages for HVDC Grids (2017)WG 21.02: Electra No. 189WG 21.01: TB 219WG B1.32: TB 496WG B1.43: TB 623DC cables up to 800 kV (2000)DC extruded cable systems up to 250 kV (2003)DC extruded cable systems up to 500 kV (2012)Mechanical testing of submarine cable DC 60 kV (2015)WG B1.42: TB 622Testing DC transition Joints up to 500 kV (2015)IEC 62895DC extruded land cable systems up to 320 kV (2017) 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 691714.03.05.164
Testing of HVDC Cable systems Development tests: development phase Type tests: demonstrate satisfactory performancecharacteristics of an applicationterminationsRepair jointLand-cable Pre-qualification test: demonstrate satisfactory longterm performance of the complete cable system.joint Routine tests: by the manufacturer on eachmanufactured component900 kVDC sourcedischargeunit Sample tests: by the manufacturer on samples at aspecified frequencyLand cable Tests after installation: demonstrate integrity of thecable system as installed.factoryjointTransition jointsubmarinecabledummy loop320 kV HVDC cable system pre-qualification test @ KEMA Labs 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 691714.03.05.165
Electrical stress in HVDC cablemax stress inno-loadmax stress infull load DC cable insulation material resistive effect temperature dependent Electrical stress shifts 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 691714.03.05.166
Temperature in HVDC cable Temperature drop across (Δthe insulation must be defined and controlledcurrentconductor tempsheath tempΔ :a specified temperature drop across the insulationΔA diagram of a typical 24 hours load cycle 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 691714.03.05.167
Superimposed impulse withstand voltage testresistortermination800 kV DC sourcejointDC dividerdummy loopcurrent transformer320 kV HVDC cable system type test @ KEMA Labs 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 691714.03.05.168
Test developmentPulse electro-acoustic method: space charge measurement @ KEMA LabsTemporary overvoltage test: superimposed oscillatingswitching impulse @ KEMA Labs 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 691714.03.05.169
Future outlook DC cable lines: grow, especially in Europe. Germany DC corridors mitigate their visual impact German corridors DC cable system ratings/per bipoleMI cables 750 kV at 3000 MW (2030)XLPE cables 650 kV at 2600 MW (2030) 800 kV at 3200 MW (2030 optimistic?) Asia DC grids:IEEE Spectrumdominated by Overhead line 1100 kV12000 MW (2019)XLPE cables 535 kV at 3000 MW (2020?) 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 691714.03.05.1610
APPENDIXDISCLAIMER & PARTNERSCOPYRIGHTPARTNERSPROMOTioN – Progress on Meshed HVDC Offshore Transmission NetworksMAIL info@promotion-offshore.net WEB www.promotion-offshore.netDNV GL Netherlands B.V., ABB AB, KU Leuven, KTH Royal Institute of Technology,EirGrid plc, SuperGrid Institute, Deutsche WindGuard GmbH, Mitsubishi ElectricEurope B.V., Affärsverket Svenska kraftnät, Alstom Grid UK Ltd (Trading as GE GridSolutions), University of Aberdeen, Réseau de Transport d‘Électricité, TechnischeUniversiteit Delft, Equinor, TenneT TSO B.V., Stiftung OFFSHORE-WINDENERGIE,Siemens AG, Danmarks Tekniske Universitet, Rheinisch-Westfälische TechnischeHochschule Aachen, Universitat Politècnica de València, SCiBreak AB,Forschungsgemeinschaft für. Elektrische Anlagen und Stromwirtschaft e.V., ØrstedWind Power A/S, The Carbon Trust, Tractebel Engineering S.A., EuropeanUniversity Institute, S.A., European Association of the Electricity Transmission &Distribution Equipment and Services Industry, University of Strathclyde, S.L.,Prysmian, Rijksuniversiteit Groningen, MHI Vestas Offshore Wind AS, Energinet,Scottish Hydro Electric Transmission plc, SCiBreak ABThe opinions in this presentation are those of the author and do not commit in any way theEuropean CommissionPROJECT COORDINATORDNV GL Netherlands B.V.Utrechtseweg 310, 6812 AR Arnhem, The NetherlandsTel 31 26 3 56 Rene.smeets@kema.com 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 691714.03.05.1611
Introduction: HVDC Cable systems 03.05.16 3 HVDC cable systems Cables Terminations Joints Factory joint Outdoor termination GIS termination Mass-impregnated paper-lapped cable (MI) Oil filled cable (OF) Extruded cable (XLPE) Superconductive cable MI DC cable: 2.2 GW at 600 kV XLPE D
HVDC Applications HVDC Technology Line Commutated Converters Voltage Sourced Converters Recent Developments DC Grid Cigre Activities in HVDC 2 Advantages of HVDC Sample HVdc and HVac Tower Configurations Smaller towers 6.4m 6.9m 28.3m 7.8m 4.6m 169. m 8.5m 13m 11.3m 25.9m 1 7 m HVDC towers are smaller and simpler .
Enabling technology for HVDC and FACTS Power Cables Product or complete system Key product for HVDC and FACTS Service and upgrading. HVDC Technologies . HVDC Light Transmission - Voltage Source Converters. HVDC Light Cable Development 1997 Hellsjön 95 mm2 Al /- 10 kV, 3 MW 2000 Directlink 630 mm2 Al
such as IGTO, IGBT and HVDC light etc., and then the power system will be improved. The main idea of FACTS and HVDC can be explained by the basic power flow concept for transmission in fig 2. Figure 2: Basic power flow diagram for power transmission 2. Development of HVDC HVDC has been introduced in the second half of the past
will require, among other technologies, DC-DC conversion systems. The advantages of HVDC over HVAC technology in relation to transmission distance are given. The different HVDC configurations and topologies of HVDC converters are elucidated. In this context, the HVDC grids are a promising alternative for the expansion of the existing AC grid.
High voltage AC (HVAC) used across the world tends to be fussy over longer distances and it creates various environment issues. Therefore, HVDC use is been propound. III. LITERATURE 2)REVIEW Literature review deals with the different types of HVDC system configurations and the components that are used in the HVDC system. A.Types of HVDC Systems
Further, a better HVDC and HVAC line losses was formulated [7]. In this paper, the technical aspects of HVDC transmission have been introduced in Economic Dispatch (ED). This paper provides an improved formulation of ED with HVDC incorporating the cost incurred due to the technical challenges associated with adopting HVDC technology.
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