An electrical system and method for a turbine/alternator comprising a gas driven
turbine and a permanent magnet alternator rotating on a common shaft includes an
inverter circuit connectable either to an output circuit or the stator winding
of the alternator. A control circuit during a start-up mode switches the inverter
circuit to the stator winding of the alternator and during a power out mode switches
the inverter circuit to the output circuit. During the power out mode, output voltage
is continuously measured and the inverter circuit is controlled to compensate for
output voltage fluctuations.