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A data logger was assembled to record wind speed and electrical current flowing into a battery from a vertical axis wind turbine at 5 minute intervals. The data is used to develop a probability density function for the wind speed and to characterize the performance of the wind turbine; cut in speed and current output vs. wind speed.
Nice work and thanks for sharing. Both your hardware and software look very clean.
I'm curious what turbine you are using - looks like a vertical axis in your sketch.
11thtoe 10 months ago
@11thtoe Yes, it is a small (0.25 m^2) VAWT (Lenz2 type). I wanted to try other designs but then realized that without data, there is no real way to compare them. :-)
Caleb6543 10 months ago
Have you compared this method to what the pros do? I think they use IEC 61400-12. Great project! This could be very useful.
Fearlessthinker 10 months ago
@Fearlessthinker No, I haven't consulted any standards. I just made it useful for my own purposes. :-)
Caleb6543 10 months ago
@Fearlessthinker I'll have to check IEC 61400-12 out. Thanks for the information; its always good to see what the accepted practice is.
Caleb6543 10 months ago