havmølleforskning på de danske universiteter - … · 8 risø dtu, technical university of...

Havmølleforskning på de danske universiteter

- udfordringer og muligheder

Peter Hauge MadsenWind Energy Division

17/04/2008Presentation name2 Risø DTU, Technical University of Denmark

Er havmøller et forskningsområde?

EU-Kommissionens stra-tegiske energiteknologiplan for EU - SET-planen (Nov 2007)

En af de vigtigste teknologiske udfordringer for opfyldelse af 2020-mål:”Fordoble de største vindmøllers elproduktionskapacitet, først og fremmest med henblik på placering til havs”

European Wind Initiative under udarbejdelse af European Wind Energy Technology Platform (TPWind) og EU-kommissionen fokuserer på offshore vind

Strategic Research Agenda Market Deployment StrategyFrom 2008-2030 (TPWind)

Thematic priorities:

−Wind conditions−Wind power systems−Wind energy

integration−Offshore deployment

and operations−Research Infrastructures


Plans for future offshore wind farms

• Status 2008 – 3163 MW, 423 MW offshore

• 2009-2012 additional 840 MW offshore

• Report on future Offshore sites, Update of action plan from 1997

• 23 Sites each 44 km2 for a capacity of 4600 MW Wind Power

• Production 18 TWh, or just over 8% of total energy consumption in Denmark or approximately 50% of Danish electricity consumption


Dansk Forskningsstrategi - MEGAVIND

Juni 2007

1. Hvordan bliver vindmøllen en effektiv og driftsikker maskine?

2. Hvordan udnyttes vinden bedst muligt?

3. Hvor er vindmøllen –vindkraftværkets optimale placering?

4. Hvordan får man mest mulig vindkraft indpasset i energisystemet?

5. Hvordan tager vi næste skridt offshore?

Offshore teknologi med henblik på:– at forbedre økonomien fra havmøller,

primært ved optimerede koncepter for infrastruktur

– at optimere driftssikkerheden med nye systemer for fejlsikkert design, redundans og fejltolerance.

Juni 2008Offshore teknologi med henblik på:– at udvikle nye koncepter for offshore

parkernes elinfrastruktur– at videreudvikle design procedurerne

for selve vindmøllen, support-kontruktion og fundamenter for at reducere design usikkerheder

– at optimere og udvikle nye koncepter for fundamenter og installationst-eknologi, med særligt fokus på dybere vand over 15 m

– at udvikle overvågnings og dataop-samlingssystemer med henblik på at kortlægge fejlhyppigheder og optimere vedligehold

– udvikle forbedrede adgangs- og sikkerhedsforhold

– øget viden om geoteknik og geofysik– udvikle viden om materialer i et

offshore miljø, med særligt fokus påkorrosion

– udvikle optimale drifts- og vedligeholdelsesstrategier


Research topics at DTU and AAUSamarbejde i Forskningskonsortiet

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Grid Integration

Innovative ConceptsDesign Issues & Tools

Horns Rev

Horns Rev 2

Horns Rev B

Horns Rev A

Djursland Anholt O

Djursland Anholt P

Site Conditions


Site Conditions

• AAU Institut for Byggeri og Anlæg (Lars Bo Ibsen)

• DTU BYG (Ole Hededal)• DTU MEK (Jens Nørkær

Sørensen, Harry Bingham)• Risø-DTU Vindenergiafd.

(Sten Frandsen, Charlotte Hasager, Jakob Mann, Søren Larsen)

• 12MW wind turbines (DSF) Risø-DTU

• SAT-WIND (DSF) Risø-DTU• SAR-WAKE (STVF) Risø-DTU• EU-Norsewind (EU) Risø-DTU• Mesoscale atmospheric

variability and the variation of wind and production for offshore wind farms, ForskEl, Risø-DTU

• Shadow effects of large wind farms, ForskEl, Risø-DTU


12MW wind turbines: the scientific basis for their operation at 70 to 270m height offshore

Measurements of winds and turbulence at high levels for large offshore wind turbines.

Measurements 6 months at Horns Rev with lidar up to 180 m above sea level. Three meteorological masts up to 62 and 70 m.

Partners:

Risø DTU

DONG energy

12MW project 2006-2009


Høvsøre cup/lidar to 300 m

Lines show logarithmic wind profile.

Symbols show data.

Notice good correspondance only at <40 m height.

Lines show mixing-length profile using boundary layer height.

Symbols show data.

Notice good correspondance at all heights in the boundary layer.

Colours: atmospheric stability - vu very unstable, n neutral, vs very stable

12MW project 2006-2009


EU-Norsewind project (2008-2012)

• Aim to produce a wind atlas for the Northern European Seas including the Baltic, Irish and North Seas.

• Ground-based using 15 lidars and some masts.

• Satellite-based wind mapping.

• Atmospheric modeling.

• Testning for location offshore Portugal.

Nominal remote sensing sites


Design Issues & Tools

• AAU Institut for Byggeri og Anlæg (Lars Bo Ibsen, John D Sørensen)

• DTU BYG (Ole Hededal)

• DTU MEK (Jens Nørkær Sørensen, Mutlu Sumer)

• Risø-DTU Vindenergiafd. (Sten Frandsen, Flemming Rasmussen)

• Dimensionering af havvindmøller, erfaringsopsamling, ForskEl, Risø-DTU

• Fundering af offshore vindmøller med bøttefundamenter, AAU

• Physical and numerical modeling of monopile in silt with focus on offshore wind turbines, AAU

• Physical and numerical modelling of monopile for offshore wind turbines, AAU, DTU BYG

• Numerical and physical modelling of laterally loaded pile in sand subject to cyclic loading, STVF, DTU Byg

• Pålideligheds-baseret analyse anvendt til reduktion af energi omkostning for offshore vindmøller AAU

• Vekselvirkning mellem havbund og offshore vindmøllepark, DSF, DTU MEK

• IEC standardisering – design og dokumentationskrav, Risø-DTU


IEA annex 23/2: Foundation concepts from land to deep sea

• Code-to-code comparison between various simulation tools used by universities and industry (e.g. Bladed, Flex5, FAST, ADAMS)

• Four concepts have been analysed :

– Land-based (0m)– Mono pile (20m)– Tripod (45m)– Floating spar (320m)

(on-going)• All concepts carry the

same 5MW turbine


Seabed Wind Farm Interaction, DSF 2008-2011(DTU MEK, DHI, AAU, LICengineering, University of Dundee)

Motivation• Key factors in design of offshore

wind turbine foundations such as maximum loading, fatigue and eigen frequencies are all heavily influenced by scour and soil-foundation interaction

Work Packages• Fundamental knowledge on scour

and natural backfilling under currents / waves;

• Effective methods to predict scour over long period ;

• Interaction between structure, flow and soil conditions; and

• Natural seabed changes and interaction with seabed forms


Grid Integration

• AAU Institut for Energiteknik (Birgitte Bak-Jensen, Zhe Chen)

• AAU Institut for Elektroniske Systemer (Thomas Bak)

• DTU CET (Jakob Østergaard)

• DTU IMM (Henrik Madsen)• Risø-DTU

Vindenergiafdelingen (Poul Sørensen, Jens Carsten Hansen)

• Risø-DTU Systemanalyse-afdelingen

• AEOLUS:Distributed Control of Large‐Scale Offshore Wind Farms, EU 7, AAU

• Integration og styring af vindkraft i det danske elsystem, AAU

• Off-Shore Windpower – Grid connection and Reliability, AAU

• POWER CLUSTER - Developing the North Sea Offshore Wind POWER Cluster, EU, AAU

• Radar at sea (PSO 2009)• Grid faults and design basis for wind

turbines (PSO 2006) – WP on storm control of wind turbines (Power control algorithm modifications, Fore-aft tower damper,

Side-to-side tower damper) Risø-DTU • Power fluctuations from large

offshore wind farms (PSO 2004) Risø-DTU


23 February Energinet.dk power 1

Power fluctuations – the 2 cases

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DAPDAOHR2HR1

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Horns Rev

Horns Rev 2

Horns Rev B

Horns Rev A

Djursland Anholt O

Djursland Anholt P

Horns Rev

Horns Rev 2

Horns Rev B

Horns Rev A

Djursland Anholt O

Djursland Anholt P


AEOLUS: Distributed Control of Large-scaleOffshore Wind Farms, EU 7, (AAU, Lund University, ECN, ISC Ltd, UZAG-FER, Vestas Wind Systems A/S)


• Aero-Hydro-Elastic Simulation Platform for Floaring Systems (Poseidon), ForskEl, Risø-DTU

• Hywind, StatOilHydro, Risø-DTU• A NOVEL FLOATING OFFSHORE WIND TURBINE CONCEPT (VAWT), PhD-

projekt, Risø-DTU

Innovative Concepts


Poseidon – combined wind and wave energy platform

• Concept developed by Floating Power Plant A/S

• Floating, moored platform with wave absorbers and three wind turbines

• Demonstration project, 37 m wide, deployed at north coast of Lolland. Wind turbines are to be installed soon.


HYWIND – floating wind turbine

• Concept developed by StatoilHydro• 2-5MW pitch controlled wind turbine• Floating spar buoy fixed by three

mooring lines• Intended for water depths between 120

– 700m.

• Demonstration project with Siemens 2.3MW 10km outside west coast of Norway.


Samlende projekter

Offshore wind power – research related bottlenecks, DSF, Risø-DTU• Ekstremlaster på offshore vindmøller• Vekselvirkning mellem mølleparker og bølger og strøm• Netforbindelse og pålidelighed• Optimal drift og vedligehold• Skyggevirkning af store mølleparker

Andre:• Dimensionering af havvindmøller, erfaringsopsamling,

ForskEl, Risø-DTU• Upwind, EU FP6, Risø-DTU


UPWIND: Finding design solutions for very large wind turbines

• WP 1A1 - Integral design approach and standards

• WP 1A2 - Metrology • WP 1A3 - Training and education • WP 1B1 - Innovative rotor blades • WP 1B2 - Transmission and conversion • WP 1B3 - Smart rotor blades • WP 1B4 - Upscaling • WP 2 - Aerodynamics and aeroelastics • WP 3 - Rotor structure and materials • WP 4 - Foundations and support structures• WP 5 - Control systems • WP 6 - Remote sensing • WP 7 - Condition monitoring • WP 8 - Flow • WP 9 - Electrical grid

UpWind is a European project funded under the EU's FP6. The project looks towards the wind power of tomorrow, more precisely towards the design of very large wind turbines (8-10MW), both onshore and offshore. 40 partners, 14,3 Mio Euro support.


International Offshore R&D programmes

The NetherlandsWE@ SEA(13 mio. Euro from natural gas fund in subsidy 50%)

GermanyFraunhofer Institute for Wind Energy and Energy System Technology IWES Fraunhofer Center for Wind Energy and Maritime Technologies CWMT in Bremerhaven and Kassel Institut für Solare Energieversorgungstechnik – ISET e. V.More than 200 R&D employees expected

UKCarbon Trust in collaboration with five major international energy -Offshore Wind Accelerator with research, development and demonstration(Worth up to £30m)–Offshore foundations ––Wake effects –Access, logistics and transportation–Electrical systems

NorwayNorwegian Research Centre for Offshore Wind Technology –NOWITECH (up to NOK 20 million annually over a five-year)At least 25 PhDs and postdocs, and is announcing 15 positions for the first period


Konklusioner• Havmølleforskningen på universiteterne har kvalitet og omfang

og behandler en lang række af de relevante og kritiske problemstillinger

• Offshore vindkraft er anerkendt som en drivkraft for forskningen, men i mindre grad som et sammenhængende forskningsområde

• Potentiale for dansk offshore klynge i bedre dialog og samarbejde mellem universiteter og erhvervsliv gennem alliancer eller centre

• Aktion nu – ellers kan viden og nye initiativer glide til udlandet


Tak for opmærksomheden

havmølleforskning på de danske universiteter - … · 8 risø dtu, technical university of...

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