In article om, Dave
Liquorice writes
On Thu, 05 Oct 2006 06:13:52 +0100, Dave Fawthrop wrote:

Worse synchronising the turbine output with mains AC at the correct
frequency, phase etc, then adjusting the phase angle to feed power back
into the mains is **VERY** **VERY** difficult.

No it's not. Bung it across the mains and it will sync *very* quickly,
probably to the detriment of part of your kit though depending on how far
out you are. B-)

Commercial boxes can be bought that do everything but these small
turbines generate so little power that that expense probably isn't
justified. So you then either have a LV battery supply and distribution
or some seperate mains via an invertor to seperate mains distribution.

Also the control box needs to fail safe. It *must* disconnect your
generated power from the mains when the mains fails but if you are
feeding the mains how does it know that the mains has failed?


ISTR that one of the biggest problems was syncing with the mains. Why
feed power from small installs back into the grid why not simply use it
for heating and other purposes on your premises?..
--
Tony Sayer