HVDC Enabling a stronger, smarter and greener grid

Transcription

1 HVDC Enabling a stronger, smarter and greener grid Peter Lundberg, Global Product Manager

2 Market challenges addresses by HVDC transmission Environmentally friendly grid expansion Integration of renewable energy Remote hydro Offshore wind Solar power Grid reinforcement For increased trading Share spinning reserves To support intermittent renewable energy

3 Transmission technologies Same power being transmitted A footprint comparison Traditional overhead line with HVAC HVDC overhead line Overhead lines improved with FACTS Underground with HVDC Light cable

4 HVDC or HVAC? Investment costs versus distance Investment costs Total AC cost Total DC cost DC terminal costs AC terminal costs Critical distance Distance

5 What is an HVDC transmission system? Customer s Grid HVDC converter station < MW, Classic Submarine cables Overhead lines Two conductors HVDC converter station < MW, Classic Customer s Grid Customer s Grid HVDC converter station < 3600 MW, Light Land or submarine cables Power / energy direction HVDC converter station < 3600 MW, Light Customer s Grid

6 HVDC technologies What makes HVDC special? Lower investment and lower losses for bulk power transmission Asynchronous interconnections Improved transmission in parallel AC circuits Instant and precise power flow control 3 times more power in a ROW than AC What makes HVDC Light special? Underground cables Easy permits Connection to passive loads Enhancement of connected AC networks Independent control of active and reactive power flow Short delivery times

7 HVDC is a growing technology Applications Connecting remote generation Interconnecting grids Offshore wind connections Power from shore City center infeed DC links in AC grids

8 HVDC Light Technical development 2500 MW kv Hällsjön 3 MW ± 10 kv Gotland 50 MW ± 80 kv Cross Sound 330 MW ± 150 kv Estlink 350 MW ± 150 kv BorWin1 400 MW ± 150 kv Caprivi 300 MW kv DolWin1 800 MW ± 320 kv East-West Interconnector 500 MW ± 200 kv Skagerrak MW 500 kv

9 HVDC technologies Transmission capacity U dc (kv) 1,100 1, HVDC Light with overhead lines HVDC Light with extruded cable HVDC Classic with overhead lines HVDC Classic with mass impregnated cable

10 Performance Power rating range POWER (MW) VOLTAGE (kv)

11 Recent VSC project operational examples 20 years operational and service experience from 21 project in operation and delivery Troll 3-4, x50 MW ±66 kv HVDC. Power from shore Dolwin 2, MW ± 320 kv HVDC. Offshore wind Åland, MW ±80 kv HVDC. Small scale, black start Skagerrak 4, MW 500 kv HVDC. Hybrid LCC+VSC

12 Footprint and layout Complement the environment or a feature in the landscape

13 Footprint and layout Lower losses through continuous optimization How is it done? Increased voltage rating Cutting-edge, bi-mode insulated gate transistor (BIGT) Optimized switching Modular multi-level converter (MMC) technology Very low no-load losses

14 Project Execution Over 110 projects and over 60 years experience in the most challenging environments in the world NORTH AMERICA CU Upgrade 2019 Maritime Link 2017 Québec New England Upgrade 2016 Madawaska Upgrade 2016 Celilo Upgrade 2016 Eel River Upgrade 2014 Oklaunion 2014 Mackinac 2014 Railroad DC Tie 2014 IPP Upgrade 2010 Blackwater 2009 Outaouais 2009 Sharyland 2007 Square Butte Upgrade 2004 Rapid City 2003 Cross Sound 2002 Eagle Pass 2000 Quebec-New England 1990 Pacific Intertie Exp Intermountain 1986 Pacific Intertie Upgr Highgate 1985 Châteauguay 1984 CU-project 1979 Nelson River Pacific Intertie 1970 Vancouver Isl. Pole AFRICA Inga-Kolwesi Upgrade 2016 Cahora Bassa Upgrade 2015 Caprivi Link 2010 Apollo Upgrade 2008 Inga - Kolwezi 1982 Cahora Bassa 1977 SOUTH AMERICA Rio Madeira 2013 Rio Maderia Back-to-back 2013 Brazil-Argentina Interconnection I & II 1999 Itaipu 1984 EUROPE North Sea Link 2021 NordLink 2020 Kriegers Flak CSG 2019 Johan Svedrup 2019 Caithness - Moray 2018 Gotland Upgrade 2018 Kontek Upgrade 2016 Troll 1&2, 3& BorWin DolWin 1, Åland 2015 NordBalt 2015 LitPol Link 2015 Skagerrak East West Intercon Sapei 2011 Valhall 2011 NorNed 2008 Estlink 2006 Italy - Greece 2001 Tjæreborg 2000 SwePol 2000 Gotland Light 1999 Hällsjön 1997 Kontek 1995 Baltic Cable 1994 FennoSkan 1& Dürnrohr 1983 Skagerrak Gotland Konti-Skan 1965 English Channel 1955 ASIA North East Agra 2016 Jinping - Sunan 2013 Hülünbeir- Liaoning 2010 Lingbao II Extension 2010 Xiangjiaba-Shanghai 2010 Three Gorges-Shanghai 2006 Vizag II 2005 Three Gorges- Guangdong 2004 Three Gorges- Changzhou 2002 ChaPad 1999 Rihand-Dehli 1990 Gezhouba-Shanghai 1989 Vindhyachal 1989 Sakuma 1965 AUSTRALIA AND OCEANIA Murraylink 2002 Directlink 2000 Leyte-Luzon 1997 Broken Hill 1986 New Zealand 1&2 1965

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16 Kriegers Flak Combined Grid Solution (KF CGS) HVDC Connecting Renewable Energy while solving grid stability Main data Customer 50Hertz Transmission GmbH and Energinet.dk SOV Customer needs Security of supply Meet EU s target for CO2 reduction Trade Connection of offshore wind energy ABB s response Turnkey 410 MW HVDC Light back-to-back station Customer benefits Security of supply Advanced control of the Combined Grid Solution Year 2019

17 North Sea Network Enabling trading of renewable energy Main data Customer Statnett SF in Norway National Grid NSL Link Ltd Customer needs Security of supply Meet EU s target for CO2 reduction Trade ABB s response Two 1,400 MW, ±525 kv HVDC Light converter stations Customer benefits Security of supply Daily and seasonal fluctuations in power demand can be met by using the other country s renewable surplus power Year 2021

18 Johan Sverdrup Environmental optimized Power from Shore Main data Customer Statoil Customer needs Enable power supply from mainland to platform complex to minimize emission of large amounts of CO2 ABB s response Two 100 MW ±80 kv HVDC Light converter stations Customer benefits Reliable power supply Better and safer work environment on platform Lower operation and maintenance costs Year 2019

19 NordLink Trading of renewable energy and grid stabilty Main data Customer NordLink Norge AS, owned by Statnett in Norway and DC Nordseekabel GmbH & Co. owned by TenneT and KfW in Germany Customer needs Meet EU s target for CO2 reduction Security of supply ABB s response Two 1,400 MW, ±525 kv HVDC Light converter stations 525 kv DC subsea and land MI cables for over 200 km of the route Customer benefits Daily and seasonal fluctuations in power demand can be met by using the other country s renewable surplus power Higher availability Year 2020

20 NordLink Connecting AC-grid in a smart way Key features Configuration +/- 525 kv, 1400 MW Asymmetrical Bipole DC overhead line and cable Primary function Energy transfer between two asynchronous grid Control features AC voltage control Low voltage ride through Adopted for combined OHL and cable on DC side Additional benefits Small footprint 168 * 220 m Black Start capability Year 2020

21 Maritime Link Enabling connecting more renewable Main data Customer NSP Maritime Link (Emera) Customer needs Integrate renewable generation into the the North American grid ABB s response Bipole HVDC Light solution Two 500 MW HVDC Light stations Two AC substations at 230 kv One AC substation at 345 kv Customer benefits Improved grid stability Power sharing enabled Year 2017

22 Caithness Moray HVDC link Solve large scale renewable integration Main data Customer Scottish Hydro Electric Transmission Ltd (SHETL) Customer needs Strengthening power network ABB s response Two HVDC Light converter stations, 1,200 MW and 800 MW Submarine and underground cable transmission of nearly 160 kilometers Customer benefits Enable integration of renewable energy Year 2018

23 Mackinac Avoid bottle necks and increase grid stability Main data Customer ATC Customer needs Power flow control and allow for integration of additional renewable energy in the State of Michigan ABB s response Turnkey 200 MW HVDC Light back-to-back station Customer benefits Enhanced network stability Islanded operation possible Black-start restarting the grid after a black-out Automatic power reduction at disturbances Year 2014

24 Skagerrak 4 Increase trading enable grid restoration Main data Customer Energinet.dk and Statnett Customer needs Boost transmission capacity with 700 MW Use electricity more efficiently Enable networks to add more renewable energy ABB s response Two 700 MW HVDC Light stations 500 kv new voltage record for the HVDC Light technology Customer benefits Network stability Low losses and high reliability Quick grid restoration with blackstart capability Year 2014

25 Skagerrak 4 Norway Denmark

26 Skagerrak 4 Black Start operation proven in field

27 Caprivi Link Interconnector Connecting two weak network enabling power transfer Main data Customer NamPower Customer needs Connect the grid in the north west with the grid in the central parts of the country ABB s response Turnkey 350 kv 300 MW HVDC Light Option for another 300 MW First HVDC Light with overhead lines Customer benefits Stability in two very weak AC networks Enables future power trading in the expansive region of southern Africa Year 2010

28 Caprivi Link Interconnector Namibia

29 Thanks for your attention!