I'm looking into building a 7 1/4 gauge Diesel Electric Locomotive I will be using 4x 1hp (or 1 1/3hp) 24vDC permanent magnet motors for the traction motors. What I am looking for is someway of generating 24vDC with a 100-150A max output. (Im using a 3cyl 16hp Diesel engine to drive a motor/generator/alternator). Im struggling to get my head round how to generate such a voltage/current and then be able to control it's output. Can anyone point me in the right direction please?