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230V synchronous motor to generator

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lufihengr:
So I have been trying to figure out how to use a 230V synchronous motor as a generator.

Is it correct that it will output 230VAC at any RPM? Do I need anything except a way to spin it at 50Hz?

I have been trying to figure this out, but it seems it’s almost a trade secret :D

There are some kind of excitation control boards as spare parts for gensets, but unclear if it is necessary.

It needs excitation of some sort of course.

Benta:

--- Quote from: lufihengr on September 17, 2023, 12:42:45 pm ---I have been trying to figure this out, but it seems it’s almost a trade secret :D

--- End quote ---
Or a rethink from "I can probably find everything I need for free on the web" to "Perhaps I need to buy a good book here. Darn!"

lufihengr:
A book? What's that?  :o

Jokes aside, maybe I do need to visit the library for once

Zero999:
The motor will have a certain V/Hz characteristic. In other word, you're mistaken. The motor's shaft needs to be rotated at the rated speed to give 230V out and even then, the voltage will probably drop when loaded. If this is unacceptable, then add more turns to the motor or use a transformer to increase the voltage.

lufihengr:
I see, so for 230V output, I need to spin it at the rated speed. More amps out = more torque in.

Now the question is with an externally excited motor/generator, how/what to use to control the exciter current

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