Potential Power
Wind Turbine 2 (Part 1)
This is my second attempt of building a wind turbine. The result of the first attempt you can view HERE
To see Part 2, click HERE
To see Part 3, click HERE
To see Part 4, click HERE
Last time, I used a Ametek treadmill
motor as generator. This time I'm making my own alternator.
Inspiration and a lot of help came from this awesome website about home-made
alternative energy.
www.otherpower.com
The
first step was to build the magnet rotors.
Two stainless steel, 12" diameter discs, each
with 12 rare Earth magnets (2x1x0.5) on them.
These
discs were put in mold to cover them with resin and fiberglass.
The
result is a strong 14" diameter magnetic disc.
Two
of these are needed to wedge a disk with wound coils of magnetic wire between
them.
Here
is the Stator mount connected to the Axle.
The
first rotor has been attached to the Hub.
The
axle with Stator mount has been added to the rotor and hub.
The
second rotor is ready to be lowered on the the first rotor.
This has to happen very carefully because
the attraction between the two is enormous.
The four 12" long rods are only there to be able to control the lowering
safely.
The
two rotors are mounted with the airgap between them.
The voltage on the first test coil
was too high (single strand, 75turns, 4.6 volts at 180RPM) .
The voltage on the second was a little low (double strand, 32 turns, 1.9 volts
at 180RPM)
The resulting 9 coils are double strand, 35 turns.
Here is the set-up for single coil testing.
Target voltage reached for the single coil (actually 2.2 volts).
An afternoon job. The mold for the stator finished.
This is what it looks like with all
the coils in place.
It took some bending and molding of the coils to get them in place.
The Stator came out nice.
On the inside,
it was necessary to make some repairs because the lid had exposed some wires.
To see Part 2, click HERE
To see Part 3, click HERE
To see Part 4, click HERE