Wind Energy Technology Developments

Transcription

1 Wind Energy Technology Developments How to meet the ambitious policy targets for wind power? 11 November 2014 Peter Hauge Madsen & Morten Hartvig Hansen DTU Wind Energy Niels Leergaard Pedersen, DTU Mechanical Engineering

2 Innovations (from Wind Directions Sept-Oct 2007 The Road to Maturity) DTU Wind Energy, Technical University of Denmark Slide 2

3 Present mainstream technology trends Competition pull for Lower cost-of-energy Larger and more reliable turbines for offshore Development of sites with low or moderate wind climate Leading to a mainstream development characterized by Upscaling to turbines with larger rated capacity for onshore and offshore Larger rotors for higher capacity factors New drivetrain solutions 3 DTU Wind Energy, Technical University of Denmark

4 Upscaling of wind turbine size Source: BTM Consult a part of Navigant, March DTU Wind Energy, Technical University of Denmark

5 Rotor design the enabler of upscaling 5 DTU Wind Energy, Technical University of Denmark

6 Rotor size the mass challenge Wind turbine blade mass versus blade length of existing glass and carbon fiber blades 6 DTU Wind Energy, Technical University of Denmark

7 Aero-Structural Optimization of a 10 MW Rotor DTU10 MW Reference turbine 7 DTU Wind Energy, Technical University of Denmark

8 Optimizer exploits design space in unforeseen directions Spars caps are sheared along the span of the blade to introduce bend twist coupling While perhaps not feasible for realistic designs it shows that the optimizer exploits the design space in ways we had not foreseen, which could lead to new design solutions. 8 DTU Wind Energy, Technical University of Denmark

9 Optimizing blade design Best LRP based design improved AEP by 2% (CP=0.506) and reduced mass by 12% relative to the DTU 10MW RWT 9 DTU Wind Energy, Technical University of Denmark

10 Fluid-Structure Interaction Simulations Using CFD Investigation of Standstill vibrations Coupling of HAWC2 and EllipSys3D 10 DTU Wind Energy, Technical University of Denmark

11 Design concepts for HTF Spinner Lidar : ControlZephIR Lidar equipped with 2D Scan Head New Design 2011 Lidar in Spinner Tjæreborg Prototype test 2009 DTU Wind Energy, Technical University of Denmark 2D Upwind scanning concept

12 DTU Wind Energy, Technical University of Denmark 12

13 International competition Wind turbine suppliers in 2013 Research publications 2 from USA 18 from Europe 42 from Asia 13 DTU Wind Energy, Technical University of Denmark

14 Job creation Europe: Denmark: EWEA estimates: jobs in 2010 (up 30 % from 2007) jobs in jobs in 2030 Shortage of trained staff: Additional trained staff needed by 2030 Full-time employees 14 DTU Wind Energy, Technical University of Denmark

15 IEC standardization for wind turbines Technical committee TC 88 formed in 1988 in order to develop standards for wind turbine generators National standardization start mid 80 s, initiated by R&D community a) Safety & functional requirements b) Test methods c) Certification procedures d) Interfaces & Component e) System - integration DTU Wind Energy, Technical University of Denmark Slide 15

16 Wind turbine standards - IEC Challenges: Series-produced product => site suitability Certification => harmonization issues System components Technical harmonization limiting innovation 16 DTU Wind Energy, Technical University of Denmark

17 Concluding remarks Competition pull for Lower cost-of-energy Larger and more reliable turbines for offshore Development of sites with low or moderate wind climate Leading to a mainstream development characterized by Upscaling to turbines with larger rated capacity for onshore and offshore Larger rotors for higher capacity factors New drivetrain solutions The development is based on advanced knowledge and technology requiring continued R&D Highly competive international market and industry Serious challenge to European and American industry from Asia Potential job creation and competition require investments in education and research Standards and certification have been important instruments for technology development, credibility and removing technical trade barriers Care needed to avoid limitations to development 17 DTU Wind Energy, Technical University of Denmark

18 Thank you for the attention Questions? 18 DTU Wind Energy, Technical University of Denmark Colourbox