demo 4: storm management · demo4: storm management. nina detlefsen, energinet.dk (demo leader)...
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![Page 1: Demo 4: Storm management · DEMO4: STORM MANAGEMENT. Nina Detlefsen, Energinet.dk (demo leader) Allan Gøttig, Energinet.dk. Nicolaos Cutululis, Risø DTU. Poul Sørensen, Risø DTU](https://reader036.vdocuments.mx/reader036/viewer/2022090603/60558e6a8a9d322ee06c253f/html5/thumbnails/1.jpg)
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Demo 4: Storm management
Detlefsen, Nina; Gøttig, Allan; Cutululis, Nicolaos Antonio; Sørensen, Poul Ejnar
Publication date:2011
Document VersionPublisher's PDF, also known as Version of record
Link back to DTU Orbit
Citation (APA):Detlefsen, N. (Author), Gøttig, A. (Author), Cutululis, N. A. (Author), & Sørensen, P. E. (Author). (2011). Demo 4:Storm management. Sound/Visual production (digital)
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DEMO4: STORM MANAGEMENTNina Detlefsen, Energinet.dk (demo leader)
Allan Gøttig, Energinet.dkNicolaos Cutululis, Risø DTU
Poul Sørensen, Risø DTU (presenter)
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Demo 4 STORM MANAGEMENT (Leader: Energinet)
16/03/2011
• Demonstrate shut down of wind farms under stormy conditions without jeopardizing safety of the system
Main objective
• Horns Rev 2 (200MW)• Flexible turbine control• Storm front forecasts • Investigate cost of changed production
associated with the planned down regulation
• Coordinate wind farm control with HVDC interconnector control and with hydro power plant operation
Approach
www.twenties-project.eu
Win
d p
ow
er
Hyd
ro p
ow
er
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Present wind turbines in Denmark
www.twenties-project.eu
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Possible offshore wind plants in Denmark (23 x 200 MW)
www.twenties-project.eu
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Strategies
Two possible strategies:Manual controlAutomatic control
Manual control involves:Wind speed forecastingWind power forecastingSystem imbalance forecastingRegulating power
Automatic control involves:New controller in the turbinesAutomatic imbalance control
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Wind speed – statistics of 91 wind turbines
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Wind power
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Wind speed forecast
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Wind power forecast
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Definition of Extreme Wind Period (EWP)
Wind speeds:v1: cut-in wind speedv2: rated wind speedv4: cut-out wind speedv3: high wind reconnection wind speed
EWP for single turbineStarts when v > v4 (typically 25 m/s)Ends when v < v3 (typically 20 m/s)
EWP for wind power plant (wind farm)Starts when half of wind turbines are cut-out(typically at wind farm average 22.5 m/s)Stops when half of wind turbines are re-connected (typically at wind farm average 18 m/s)
www.twenties-project.eu
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Statistics of Extreme Wind Periods (EWPs)
Ideally, purpose is to compare actualand forecasted wind speeds
Difficult to provide sufficiently long period of data
Forecasts are from Energinet.dk
Historical data would ideally bemeasurements, but are re-analysisperformed with Weather Research and Forecasting (WRF)-model
Grahps show 100m height (10m data much better agreement, but lessrelevant)
www.twenties-project.eu
1114
7
1
33
3
11
3 2
19
2007 2008 2009 2010 SUM
Nr. of O
ccuren
ces
Forecast Historical
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KPI: worst case forecast error
Maximum absolute power prediction error for eachExtreme Wind Period(EWP)
www.twenties-project.eu
0 5 10 15 20 25 300
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Events
Erro
r [p.
u.]
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Conclusions
New turbine controller will be developed
Improved actions based on wind power forecasts will be developed
Potential of Norwegian Hydro
Impact from storm in Danish (UCTE) and Nordic system
Correlation of storms in the regions will be assessed
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