8) Go to your local library or the net and look under electrical/technology/AC theory/basics/power_generation/exciters or try a search on the net. Every generator just HAS to have some sort of ectromagnetic field to "excite" it into producing the required resulting current or force. Kind of like an "initator" or "detonator" in other words on other subjects. Another subject(s) for another time and/or place. The circuit you are wanting is really only a compatator circuit with a time reference to which frequency that you want the 3/0 generator to compare and operate at and sync to the rest of the power grid. I would sure like to be of more help to you than this but I think that this will be a more productive way for you to go get the info and you would learn so much more about the subject than from a book and all. If you get kind of "stuck" then please PM me or ask others in this forum who will be glad to help you out.
With Respects
Spectre