U-U, V-V and W-W are the start and end of the three-phase winding of the generator.
If a delta connection is used, the three-phase windings are connected in series from start to finish. The three-phase wires are removed from the series connection.
If it is a star connection, connect the ends of the three-phase windings in parallel to bring out the neutral wire, and the first end of the three-phase windings brings out the three-phase wires.
Connect a few AC 450V4.7UF capacitors (iron shell is best) to both ends of the motor wiring. You can experiment with how much you add. You can add one as a test, then connect a 25W light bulb and turn the rotor quickly (you can use a rope to pull it). If the bulb lights up, it's OK. If it doesn't, it won't work. I used to try this when we were generating electricity at the campagne, and anything that can light would work.