ABSTRACT
A PMSG’s output voltage amplitude and frequency are proportional to speed. In constant speed primemover applications, PMSGs might perform voltage self-regulation by proper design; that is, inset or interior PM pole rotors. Small speed variation (
±
10 to 15%) may be acceptable for diode rectified loads with series capacitors and voltage self-regulation. However, most applications require operation at variable speed, and, in this case, constant output voltage vs. load, be it direct current (DC) or alternating current (AC), requires full static power conversion and close-loop control.
