Build A DIY Axial Flux HAWT Pt 9: Furling & Increasing Eff. W/ A Capacitor



(SEE UPDATE BELOW) In this video I install another 8 awg 3-wire in the tower to extend all phase ends to ground level so that in the future I can switch wiring configurations without having to lower the turbine. I also show how I wire in another full wave rectifier to lower the voltage and increase the amp’s from the 24V pma to work efficiently on a 12V system, as well as adding a 75V/30000MF capacitor to act as a buffer between the turbine and the battery bank; the capacitor will absorb overcharge during peaks and release the energy to the batteries as the wind speed and output from the turbine decreases, which helps to compensate for power intermittency due to wind speed variability.
I also caught the turbine furling for the first time on video. I didn’t record any wind speeds higher than 16 mph (peak power was ~158W) so I’m going to add some weight to the tail to keep it from furling until around 25 mph.
UPDATE: This turbine is now connected to a Midnite Solar Classic MPPT controller, and peak output so far has been 866 watts in 29 mph wind – see the link below for new power output video. A step by step build guide for this project with detailed plans and 3D CADs are now available at the website as well.

Plans:

https://www.resystech.com/axial-flux-hawt.html

Performance video:

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Post time: Feb-14-2017
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