Patent ID: 6909262

Claim:
A control system including a generator control unit (GCU) for controlling exciter power of a generator and modulating a generator excitation source voltage according to load and speed conditions in a brushless synchronous generator (BSG) having a permanent magnetic generator (PMG), an exciter and a main generator that are connected to a rotating shaft, the GCU comprising: a rectifier for converting alternating current to direct current; a voltage regulator for controlling an output voltage level based upon a power requirement of said exciter; a field switch for maintaining a field current through an exciter stator winding under said load and speed conditions; and a free wheeling diode for modifying exciter power in accordance with a field current component controlled by said field switch; wherein said BSG is connected to said GCU by coupling said PMG of said BSG to the rectifier of said GCU and by coupling said exciter of said BSG to said voltage regulator and said field switch driver of said GCU, and said voltage regulator receives and regulates the rectified voltage of the PMG.