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VINDKRAFTSFORSKNING I FOKUS 7 oktober, 2015 Jenny Lundén Pöyry Sweden
ICETHROWER – AKTUELLT LÄGE OCH RESULTAT
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WHAT IS THE PROBLEM?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 2
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WHAT IS THE PROBLEM?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 3
1. Wind turbines drop ice pieces occasionally
2a. The emotional conclusion is “often” and “long distance” (km!)
2b. The pragmatic approach is ”now and then” and “within 1D”
3. Risk level is generally poorly investigated and hard to calculate
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IS THERE A SOLUTION TO THE PROBLEM?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 4
Level of confidence can be increased by more observations
Discrepancies between different turbines can be investigated
A generic tool to increase the possibility to calculate and
communicate risk both for service personnel and for the public
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5
WHICH IS OUR APPROACH?
6-7 OKTOBER 2015 5
Joint research project within Energimyndigheten’s
research program “Wind power in cold climate”.
Pöyry Sweden Project leader
Consultant
ProgramoGrafik Consultant
2 turbines in mid Swedish
forest
without blade heating
2 turbines in north Swedish
mountain terrain
with blade heating
2 turbines in north Swedish
forest
without blade heating
Dala Vind Skellefteå Kraft Vattenfall Vindkraft
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WHICH IS OUR APPROACH?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 6
To collect data from grounded ice fragments (x,y; weight; photos)
To create a database for common use
Develop a usable simulation tool for risk evaluation based on collected data
Verify and integrate the existing tool KASTIS into a common tool box
Financing
Total budget SEK 982.000
65%
11%
13%
11%
Energimyndigheten
Vattenfall Vindkraft AB
Skellefteå Kraft AB
Dala Vind AB
Time schedule
Oct 2013 – Sep 2016
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WHEN WILL WE HAVE RESULTS?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 7
Data collection during winter 2013-2016
Development of models 2015/2016
Report Q3 2016
Link from Winterwind web site
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HOW WILL THE RESULTS BE PRESENTED?
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 8
Results from exploratory investigations
Data base from observations
Vindkraftverk X-koordinat Y-koordinat
Koordinatsystem RT90 2,5 gon V
Nr Observation Kasttid Vid kasttillfället Fyndplats Vikt Längd Bredd
år månad dag tid år månad dag tid Driftsmod Vindstyrka Riktning Ber riktn Temp Tryck X-koordinat Y-koordinat Istyp kg Ursprung Foto cm cm
1
2
3
4
5
6
7
8
Statistic simulation program module
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EXAMPLE OF OUTCOME – PRELIMINARY RESULTS
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 9
0 50 100 1500
100
200
300
400
Avstånd från turbin
Id.
nr.
Alla tillgängliga iskast:314 st
0 20 40 60 80 100 120 140 1600
0.05
0.1
Avstånd från turbin, 10 m - intervall
Rela
tiv f
rekvens
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EXAMPLE OF OUTCOME – PRELIMINARY RESULTS
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 10
7.1253 7.1254 7.1254 7.1254 7.1255 7.1255 7.1256 7.1257 7.1257
x 106
1.6246
1.6247
1.6247
1.6248
1.6248
1.6249
1.6249
x 106
RT90 X
RT
90 Y
90
180
270
360
Turbin
R = rotorradie
R = 180 m
Slumpmässiga iskast
6.7424 6.7424 6.7424 6.7425 6.7425 6.7426 6.7427 6.7427 6.7428
x 106
1.4773
1.4774
1.4774
1.4775
1.4775
1.4776
1.4776
x 106
RT90 X
RT
90 Y
90
180
270
360
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EXAMPLE OF OUTCOME – PRELIMINARY RESULTS
6-7 OKTOBER 2015
VINDKRAFTSFORSKNING I FOKUS 11
0 20 40 60 80 100 120 140 160 1800
0.002
0.004
0.006
0.008
0.01
0.012
0.014
0.016
0.018
0.02
Avstånd från turbin [m]
Anta
l is
kast/
m2
Alla tillgängliga iskast:314 st
45m
= 0
.5R
D
90m
= 1
RD
135m
= 1
.5R
D
180m
= 2
RD
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THANK YOU!
6-7 OKTOBER 2015 VINDKRAFTSFORSKNING 12
CONTACT:
Bengt Göransson
MAIL: [email protected]
PHONE: +46 10 474 0056