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Wind turbine rotor blade pitch determination fast cheap from the base of an operating turbine, 1/100th degree tolerance, stop vibration
Transcript of INSight Lite
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*Patent Pending
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Blade 1
Blade 2
Blade 3 wind LLC Chade W. Charles
+1-219-661-1040 Cell +1-219-308-0863 Crown Point, Indiana, USA
c c h a r l e s @ i n w i n d l l c . c o m
The blue arrow blade is
consistently 1m closer to the tower than the
other two
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-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Me
ter
Sequence (Rotation)
Tip to tower distance sequentially
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Captured video of an
operating turbine used here to
track and determine pitch
angle from the longest cords trailing edge.
Manufacturer tolerances vary, but
preferred optimization is less than 0.5
difference between blades in a set.
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Out of
tolerance
means a
weight
imbalance in
the XY plane
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0.00
10.00
20.00
30.00
40.00
50.00
60.00
0.0 5.0 10.0 15.0 20.0
mm
/s
Wind speed m/s
Vibration to Wind Speed
Cu
t o
ut
spe
ed
Extra Wear
Damage Loss
Wind speed distribution
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The pessimist complains about the wind; the optimist expects it to change; the
realist adjusts the sails - William Arthur Ward
wind LLC Chad W. Charles
+1-219-661-1040 (Cell 308-0863)
Crown Point, Indiana, USA
c c h a r l e s @ i n w i n d l l c . c o m
