Abstract: An electrical power generating system includes a prime mover having a throttle control for converting a source of input energy into a mechanical output. The system includes an electrical generator having a plurality of output windings and a field winding for exciting the output windings. The generator is mechanically coupled to the mechanical output of the prime mover. Means are provided for sensing a plurality of parameters related to the performance of the system and further means are provided for converting each of the sensed parameters into a digital signal indicative of the magnitude of the sensed parameter. Additional means are provided responsive to the digital signals for developing a plurality of electrical output signals. The electrical output signals are utilized to control either or both the generator and the prime mover to thereby control the output of the power generating system.