Abstract
Despite major research efforts, the interaction of the atmospheric boundary layer with turbines and multi-turbine arrays at utility scale remains poorly understood today. This lack of knowledge stems from the limited number of utility-scale research facilities and a number of technical challenges associated with obtaining high-resolution measurements at field scale. We review recent results obtained at the University of Minnesota utility-scale wind energy research station (the EOLOS facility), which is comprised of a 130 m tall meteorological tower and a fully instrumented 2.5MW Clipper Liberty C96 wind turbine. The results address three major areas: 1) The detailed characterization of the wake structures at a scale of 36×36 m2 using a novel super-large-scale particle image velocimetry based on natural snowflakes, including the rich tip vortex dynamics and their correlation with turbine operations, control, and performance; 2) The use of a WindCube Lidar profiler to investigate how wind at various elevations influences turbine power fluctuation and elucidate the role of wind gusts on individual blade loading; and 3) The systematic quantification of the interaction between the turbine instantaneous power output and tower foundation strain with the incoming flow turbulence, which is measured from the meteorological tower.
| Original language | English (US) |
|---|---|
| Article number | 012001 |
| Journal | Journal of Physics: Conference Series |
| Volume | 524 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2014 |
| Event | 5th Science of Making Torque from Wind Conference, TORQUE 2014 - Copenhagen, Denmark Duration: Jun 18 2014 → Jun 20 2014 |
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Probing wind-turbine/atmosphere interactions at utility scale : Novel insights from the EOLOS wind energy research station. / Hong, Jiarong; Guala, Michele; Chamorro, L. P.; Sotiropoulos, Fotis.
In: Journal of Physics: Conference Series, Vol. 524, No. 1, 012001, 01.01.2014.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Probing wind-turbine/atmosphere interactions at utility scale
T2 - Novel insights from the EOLOS wind energy research station
AU - Hong, Jiarong
AU - Guala, Michele
AU - Chamorro, L. P.
AU - Sotiropoulos, Fotis
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Despite major research efforts, the interaction of the atmospheric boundary layer with turbines and multi-turbine arrays at utility scale remains poorly understood today. This lack of knowledge stems from the limited number of utility-scale research facilities and a number of technical challenges associated with obtaining high-resolution measurements at field scale. We review recent results obtained at the University of Minnesota utility-scale wind energy research station (the EOLOS facility), which is comprised of a 130 m tall meteorological tower and a fully instrumented 2.5MW Clipper Liberty C96 wind turbine. The results address three major areas: 1) The detailed characterization of the wake structures at a scale of 36×36 m2 using a novel super-large-scale particle image velocimetry based on natural snowflakes, including the rich tip vortex dynamics and their correlation with turbine operations, control, and performance; 2) The use of a WindCube Lidar profiler to investigate how wind at various elevations influences turbine power fluctuation and elucidate the role of wind gusts on individual blade loading; and 3) The systematic quantification of the interaction between the turbine instantaneous power output and tower foundation strain with the incoming flow turbulence, which is measured from the meteorological tower.
AB - Despite major research efforts, the interaction of the atmospheric boundary layer with turbines and multi-turbine arrays at utility scale remains poorly understood today. This lack of knowledge stems from the limited number of utility-scale research facilities and a number of technical challenges associated with obtaining high-resolution measurements at field scale. We review recent results obtained at the University of Minnesota utility-scale wind energy research station (the EOLOS facility), which is comprised of a 130 m tall meteorological tower and a fully instrumented 2.5MW Clipper Liberty C96 wind turbine. The results address three major areas: 1) The detailed characterization of the wake structures at a scale of 36×36 m2 using a novel super-large-scale particle image velocimetry based on natural snowflakes, including the rich tip vortex dynamics and their correlation with turbine operations, control, and performance; 2) The use of a WindCube Lidar profiler to investigate how wind at various elevations influences turbine power fluctuation and elucidate the role of wind gusts on individual blade loading; and 3) The systematic quantification of the interaction between the turbine instantaneous power output and tower foundation strain with the incoming flow turbulence, which is measured from the meteorological tower.
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UR - http://www.scopus.com/inward/citedby.url?scp=84903689744&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/524/1/012001
DO - 10.1088/1742-6596/524/1/012001
M3 - Conference article
AN - SCOPUS:84903689744
VL - 524
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012001
ER -