speed is not the way to get 60 hz ac from a permanent magnet generator. to get that it only can turn 60 times per second. Due to the slow speed you sacrifice voltage and consequently current. The other two variables are fixed, cant increase the strength of a permanent magnets magnetic field and cant add more turns of wire to a already built generator.



Probably the best way to get 60 hz from it is to convert to dc and run it through a dc to ac converter.