HVDC Innovative Technology for Smart Grids and Super Grids. Wilfried Breuer CEO Power Transmission Solutions, Siemens Energy Sector

Transcription

1 HVDC Innovative Technology for Smart Grids and Super Grids CEO Power Transmission Solutions, Siemens Energy Sector BritNed: Pre-launch Press Event Maasvlakte, March 31, 2011 Siemens AG 2011 Energy Sector

2 The New Electricity Age: Three steps to sustainable energy supply 1 Optimization of generation energy mix 2 Increase efficiency along the entire energy chain 3 System optimization / Smart Grid and Super Transmission Grid Page 1 March 31, 2011

3 Siemens is the leader and trendsetter in HVDC transmission with With award of BorWin2, and Germany, SylWin1 Siemens in Germany, has received Siemens the won order the for the orders world's for the largest world's offshore largest HVDC offshore transmission HVDC transmission system (800 systems MW) with April award 2011: Siemens of BorWin2, has Germany, put the BritNed Siemens HVDC has transmission received the order link for the between world's Britain largest and offshore the Netherlands HVDC transmission into operation system (800 MW) June 2010: with With Yunnan Guangdong, China, Siemens commissioned completed the world's world's first first ±800-kV ±800kV DC DC transmission system system (bipolar operation) January 2010: with With Trans Bay Cable, USA, Siemens energized the world's first HVDC transmission system with innovative multilevel converter technology HVDC PLUS April 2006: with With Basslink, Australia, Siemens put into commercial operation the longest at the time submarine longest submarine cable transmission cable transmission line at the time project November 2001: With Moyle Interconnector, UK, Siemens introduced advanced HVDC converter technology with unique low-maintenance direct light-triggered thyristor power semiconductors Page 2 March 31, 2011

4 HVDC transmission systems are undergoing continuous technological improvements HVDC Classic HVDC Bulk HVDC PLUS kv up to 4,000 MW 800 kv for minimal transmission losses 5,000 7,200 MW VSC: Voltage- Sourced Converter B2B The short link HVDC-LDT Long-Distance Transmission Back-to-Back Station Submarine Cable Transmission Long-Distance OHL Transmission AC AC AC AC AC AC DC Cable DC Line For decades, voltage and capacity continously increased! Page 3 March 31, 2011

5 HVDC transmission: Lower line losses and transmission costs compared with AC technology at about 80 km cable and 800 km overhead lines SSC: Series and Shunt Compensation Page 4 March 31, 2011

6 HVDC offers varied technology options for greater efficiency and supply security HVDC Classic / Bulk based on thyristor technology HVDC PLUS based on transistor technology Very low AC-DC-AC conversion losses High transmission capacity up to ±800 kv and up to 8 GW per bipole system High overload capability Compact station layout, small footprint Black-start capability No reactive power compensation and no filter requirements Page 5 March 31, 2011

7 Development of DC transmission: Worldwide installed capacity is soaring 350 [GW] In addition, over 250 GW are expected by 2020! Quelle: Cigre WG B IEEE T&D Committee 2006 Page 6 March 31, 2011

8 China uses hydro power from country s interior for load centers on distant south-west coast Hydro power in China transmitted by HVDC Hydro power > GW 2000 km Load Center Page 7 March 31, 2011

9 The world s first 800-kV HVDC transmission line is a milestone in China Key figures for the Siemens HVDC line: 5,000 MW +/ 800 kv DC 1,418 km Yunnan Guangdong In operation since December 2009 (Pole 1) and June 2010 (Pole 2) Reduction in CO 2 compared to electricity from local energy mix 33 megatons p.a. through hydro power and HVDC long-distance transmission Page 8 March 31, 2011

10 Worldwide first 800-kV HVDC system: Converter station and transformer with challenging dimensions Page 9 March 31, 2011

11 What works in China is feasible in Europe: Vision for interconnections facilitated by HVDC Renewable energy in Europe also great distances to load centers Wind power > GW Hydro power > GW 1800 km 2000 km Solar power > GW Load center Page 10 March 31, 2011

12 European offshore super grid: Transmitting electricity through HVDC interconnectors within Northern Europe Currently existing Currently planned or just completed (BritNed) Under study EWEA Recommended Grids by 2020 EWEA Recommended Grids by 2030 Under study (EWEA recommended) Source: European Wind Energy Association (EWEA) 2009 / 2010 Page 11 March 31, 2011

13 Integration of wind power: Huge offshore wind farms have to be to connected to the grid Three wind farms get connected with world s first offshore MMC: SylWin1 with 864 MW BorWin2 with 800 MW HelWin1 with 576 MW The Modular Multilevel VSC technology (MMC) reduces complexity and therefore the space required for installation 800 MW V DC = +/- 300 kv 2013 BorWin2 = ~ = 2014 V DC = +/- 320 kv SylWin1 = ~ = HelWin1 = ~ = MW V DC = +/- 250 kv 576 MW = ~ = = ~ = = ~ = Page 12 March 31, 2011

14 Offshore grid access with WIPOS from Siemens The new Wind Power Offshore substation (WIPOS) from Siemens serves as an interface between the wind turbines and the mainland Power harvested from wind is collected and then passes through the export cables to reach the point of connection onshore WIPOS is designed as a floating, self-lifting platform The platform will be towed by tugs to its destination at sea where the water is about 40 meters deep Large heavy-duty crane vessel is not needed to lift the platform topside onto its foundation Page 13 March 31, 2011

15 Thank you! Siemens AG 2011 Energy Sector