How many coils and how many turns would be required to make a Axial Flux Permanent Magnet generator that would put out a fair voltage and current @ 50 or 60 Hz, dependent on where in the world the person building the wind turbine generator is located? The thing about using a inverter and batteries is there are more points of failure in a system using those components compared to a system that does not use those components. I'm just asking around right now, but I just want to know if I ever do start working on building a AFPM Wind Turbine generator.

@Nickle989 I am trying to stat AWAY from the battery and inverter method of storing power because that method has higher number of points of failure. Rectifier Diodes could fail. Something could happen with one of the batteries, and with a inverter, you have too many points for failure. I know there are so many areas within the inverter that are stressed more than others and could blow out or fail in some way.

Dracos,

There was series of graphs showing the energy "problem" in the US.
One was the average wind energy available for several years. What
one saw is that the average is quite low maybe 10% but on certain days
it was goes much higher. This doesn't corespond well at all, to the full
demand orientation of how consumers expect to use electricity. Now, the
power companies can make use what ever energy is available because
they can throttle their steam plants rapidly and make good use of
the times when the wind energy is very high. An individual generator
though is more problematic and one really will wish they had a backing
store for electricity of somekind to even-out the demand. Another thing
that can help out large generators is that they can have automatic
mechanical transmissions.

The tricky part of 50/60HZ is that you need that so many magnetic
poles per second (50 or 60) which in a normal generator design
would be a constant and directly dependent and proportional to
RPM.

It may be possible to do microcontrol computer controlled magnetic
pole switching which would let one synthesize approximate waveforms
by dynamically changing generator coil connections.

But having insufficient net power for instantanious demand is still
a problem. You would in any case required to have a variable
autotransformer to keep the voltage adjusted because that needs
to be relatively constant too and some way to "burn" extra power
when the wind is producing too much.

All these factors are deterministic though ,and one could write a
relatively simply computer simulation to see what one could expect
in terms of power then feed in some average wind data and demand
data.
   
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D.C. voltage inverters are becoming more robust and less expensive,
and one can get warantee replacements of the inverter. These type
inverters and backing stores are probably going to become standard
equipment in many alternate energy applications in the future. So
getting one correct, would most likely not be wasted time.

:S:MarkSCoffman