Before I start, I’d like to credit a great website which inspired me to make the Bicycle wheel Wind Turbine, and helped me a lot in understanding how I could build one my self.
I’ve always wanted to build a wind turbine. Due to the amount of money I have, I’m extremely limited to what I can buy, thus I have to salvage what I can from wherever I can. I found a wooden pole (as you can see in the pictures/video below) which acts as my main pole to keep the main board on to hold the generator and wind vane.
The board is attached to the outer ring of a vehicle axis bearing via extremely strong glue, whereas the wooden pole is pushed through the middle, and held in place with hose-clamps just in-case. The Wind Vane was made out of thick plastic which can be used for putting on the front of houses behind the gutter. I went online and found an amazing website showing how to calculate how big the Wind Vane should be, and the different shapes you can choose from. I went with what I thought best suited my Wind Turbine, and what look quite standard.
The generator was bought from eBay. I’m unsure what it is from, or who it’s made by, but it generates AC standard and is then converted to DC via a Bridge Rectifier. When I used a 550W drill to turn the axis on the generator, its output was 152VDC @ 800mA (or 0.8A). If we was to calculate how much power it was generating, we can see it was generating 121.6 Watts. Not bad for a small generator, however 152VDC is not practicable for the sort of applications that I would like to use it for – such as to trickle charge a 12V battery – therefore I created a circuit which was then printed onto PCB which has a 15V regulator to regulate the voltage to 15V. This means, that if the generator was to generate 30VDC, it’d regulate it to 15V.