[BC] Power distribution

[Harold Hallikainen]

 > You are frequency locked, NOT phase locked.
 >
 > The phase difference continually varies, as a function of the net energy
 > interchange.
 >
 >
 >>Then I touch up exciter voltage depending if they want me to feed them or
 >>cut them lose, then I am phased locked to my frequency standard.
 >
 > When you alter the genset's excitation, you are altering the reactive
 > power interchange, NOT the real power interchange.
 >


I seem to remember an old movie that showed a power plant going on line.
They had light bulbs connected between the line and the generator. They'd
adjust the generator until the lightbulbs flashed as slowly as possible,
then closed the switch when the lights were out.

The use of a three phase motor as a generator (such as with a wind mill)
is interesting to me. As I see it, if the shaft is going below synch
speed, it's pulling power off the line and acting as a motor. Speed it up
to synch speed and it takes no power. Speed up to above sync speed, and it
puts power back into the line. Seems a whole lot simpler than a line sync
inverter. You could just have a tachometer and a big contactor on the
windmill. When speed went slightly above sync speed, close the contactor.
When slightly below, open it.

Harold