One I remember had some clever kind of gearing that could be used to power
the generator even in light winds with the blades whizzing around and in
strong winds with them turning more slowly, but presumably giving more
torque. I never bothered to find out.
I'm sure there are many types with all sorts of clever gadgets to try to be
as efficient as possible. One worry though is local climate effects of such
devices. If you are taking power from the wind, then one assumes downwind of
the turbines the air is moving slower and with more turbulence as you often
get when high rise buildings are built in windy places.
Brian

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The Sofa of Brian Gaff...

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"T i m" wrote in message
...
On Sun, 11 Oct 2020 21:50:41 +0100, Vir Campestris
wrote:

snip

Frequency - AIUI generate DC, and use some clever electronics to get it
on the grid. Not quite clever enough though...

I think we went to a small power station when I was at college doing
my HND in Electrical Engineering and I think they synched the
frequency of their output to that of the grid manually ... or hit the
big connection switch manually suggesting if they got it wrong by more
than a bit, it could rip the generators off their mounts?

Cheers, T i m