Power Transmission Solutions Grid Access

Transcription

1 Power Transmission Solutions Grid Access Connecting the 500 MW Greater Gabbard Offshore Wind Farm to the Grid Dietmar Retzmann Alberto Schultze Siemens AG 2009 Energy Sector E T PS SL/Re

2 Global Trends CO 2 Reduction Green Energy Megacities Security of Supply E T PS SL/Re

3 Electrical Energy of our Society is the Backbone today and in Future E T PS E SL/Re T PS SL/Re

4 Greenland Melt-Down has accelerated Pictures of the Future? Accelerated Greenland Melt-Down North of Germany after Sea-Level Rise by 100 m Sea-Level Rise from Ice-Melting and thermal Expansion: : +18 +/-5 cm per 100 Years : +31 +/-8 cm per 100 Years Possible Maximum Value as Worst-Case Business-As-Usual Scenario Source: Gregory et al., Nature (2004) Source: "An End to Global Warming, L.O. Williams, Elsevier E T PS SL/Re

5 ustainability of Power Supply E T PS SL/Re

6 Offshore Windfarms in Europe our Projects Burbo Banks, GB, x SWT (90 MW) Rhyl Flats, GB, x SWT (90 MW) Lynn / Inner Dowsing, GB, x SWT (194 MW) Sheringham Shoal, GB, x SWT (316,8 MW) Greater Gabbard, GB, 2009/ x SWT (504 MW) Gunfleet Sands, GB, x SWT (108 MW) Gunfleet Sands II, GB x SWT (64,8 MW) Rødsand II, DK, x SWT (207 MW) Horns Rev II, DK, x SWT (209 MW) Lillgrund, SE, x SWT (110 MW) Middelgrunden, DK, x SWT-2.0 (40 MW) Samsø, DK, x SWT (23 MW) Rødsand, DK, x SWT (165,6 MW) Vindeby, DK, x 450 (4,95 kw) Several DONG Projects in Northern Europe 500 x SWT-3.6 (1800 MW) * * planned or under Construction E T PS SL/Re

7 Solutions for Grid Access Wind Power (E R WP) Drive Technologies (I DT) Power Transmission (E T) MV / HV-Switchgear Cabling with MV / HV-cables Potentially: Generator variable or fixed Speed Gearbox Blades Nacelle Wind Turbine Turnkey Wind Farms Grid Access, SVC, SVC PLUS, HVDC, HVDC PLUS E T PS SL/Re

8 Siemens Energy: Turnkey Solutions for Grid Access from one single Source Technology Service Partnership Wind Turbines AIS, HIS, GIS FACTS, HVDC MV Switchgear Transformers Control, Communication and Protection Studies Engineering Procurement Construction Training & Maintenance Cable and Laying Civil Works Road Works Platform Construction Project Financing E T PS SL/Re

9 Turnkey Responsibility: First and crucial Steps Definition of most economic Wind Farm Network and Grid Connection (AC versus DC). Define Layout and specify Components of the entire Grid Connection. Load-Flow Studies and Short-Circuit Calculations of the whole System. Define the System Grounding Concept and perform Insulation Coordination for the entire Grid Connection. Verification the static and dynamic Performance and Design of Reactive Power Compensation and / or DC System. Evaluation of System Resonance Behavior driven by the Cables, Transformers, Reactors and Wind Generators. Prove the Conformity with the GRID CODE. Design of Protection, Control (SCADA) and Communication System. System Efficiency: Evaluation of overall Losses for various Scenarios. Evaluation of Electro-Magnetic Interferences for the Grid Connection. Optimization of System Reliability and Availability E T PS SL/Re

10 Turnkey: Responsibility from Studies to Commercial Operation System and Design Studies 8010 m 657 A 219 A 219 A 219 A 438 A 438 A 73 A 219 A 538 m 538 m 538 m 538 m 538 m 538 m 538 m 538 m 538 m Procurement, Transport, Erection, Commissioning Commercial Operation E T PS SL/Re

11 Examples of Studies Verification of Grid Code Source: EWIS Interim Report June E T PS SL/Re

12 System and Design Studies: Detailed Modeling of a Number of Wind Farms E T PS SL/Re

13 Example of System and Design Studies: Single Line Diagram of a complex System Example with DC Link E T PS SL/Re

14 SVC PLUS The Advanced STATCOM Innovation Meets Experience Siemens uses MMC Technology (Modular Multilevel Converter) Single Units: +/- 25 MVAr +/- 35 MVAr +/- 50 MVAr Up to 4 parallel Units: +/- 200 MVAr E T PS SL/Re

15 SVC PLUS A View of the Technology Cooling System Converter Control & Protection E T PS SL/Re

16 Layout SVC PLUS: Example of +/- 50 MVAr 21 m 25 m E T PS SL/Re

17 SVC PLUS: Example of Factory Acceptance Tests Nuremberg, Germany E T PS SL/Re

18 Greater Gabbard: World s largest Offshore Wind Farm Overview Project Owner: Airtricity Project Development: Airtricity & Fluor Balance of Plant Contractor: Fluor Solution for Grid Access: Siemens Wind Turbines: Siemens E T PS SL/Re

19 Greater Gabbard Offshore Wind Farm 132 kv Export Cable Lengths: Gabbard to Onshore approx. 46 km Three Circuits Galloper to Gabbard approx. 16 km One Circuit Inner Gabbard: 100 Wind Turbines Inter-Array Cables: 33 kv Galopper: 40 Wind Turbines E T PS SL/Re

20 Landing Point for the Sea Cables Sizewell A Nuclear Power Station Sizewell B Nuclear Power Station 132 kv Cables E T PS SL/Re

21 Greater Gabbard Main Platform 2 Decks, Topside approx t: 16 incoming 33 kv Cables from Wind Turbine Array 3 GIS 33 kv Switchboards 3 x 33/132 kv Transformers, 3 Winding 90/90/180 MVA Auxiliary/Earthing Transformers 4 GIS 132 kv Circuit Breakers 132 kv Cable Connections to Transformers Generator, Refuge, Fire Suppression, Metering, etc. Helipad E T PS SL/Re

22 Galloper Platform 2 Decks, Topside approx t 6 incoming 33 kv Cables from Wind Turbine Array GIS 33 kv Switchboard 2 x 33/132 kv Transformers, 2 Winding 90 MVA Auxiliary/Earthing Transformers 2 x 33 kv 30 MVAr Reactors GIS 132 kv Circuit Breaker 132 kv Cable Connections to Transformers Generator, Refuge, Fire Suppression, Metering, etc. Helipad E T PS SL/Re

23 Gabbard Offshore Substation E T PS E T SL/Re PS SL/Re

24 October 2008 Supports ready for Deck Assembly E T PS SL/Re

25 November 2008 Deck Assembly E T PS SL/Re

26 December 2008 Structure appears E T PS SL/Re

27 March 2009 Onshore Civil Works come out of the Ground E T PS SL/Re

28 April 2009 Internal Structure & Helipad E T PS SL/Re

29 May 2009 Platform GIS Switchboard E T PS SL/Re

30 May 2009 Final Tuning E T PS SL/Re

31 May 2009 Ready for Roll out E T PS SL/Re

32 Roll out 6 th June E T PS SL/Re

33 Roll out 6 th June E T PS SL/Re

34 Roll out 6 th June E T PS SL/Re

35 The Future? with HVDC and FACTS Global Link for Green Energy 6-7 GW DCs in China Thank You for Your Attention! E T PS SL/Re