H - Electricity – 02 – P
Patent
H - Electricity
02
P
H02P 9/30 (2006.01) H02K 19/28 (2006.01) H02K 19/36 (2006.01) H02K 19/38 (2006.01) H02P 9/42 (2006.01)
Patent
CA 2122576
VARIABLE SPEED CONSTANT FREQUENCY SYNCHRONOUS ELECTRIC POWER GENERATING SYSTEM AND METHOD OF USING SAME Abstract of the Disclosure A variable speed constant frequency synchronous electrical generating system includes a generator rotor with a polyphase field winding whereby the position of the electromagnetic field relative to the rotor structure can be controllably varied. The system includes means to substantially instantaneously determine the angular or rotational position of the generator rotor relative to a reference member rotating at a reference speed. The system further includes means whereby the angular position of the generator electromagnetic field relative to the structure of the generator rotor is maintained essentially the same as the angular position of the reference member, rotating at a reference speed, relative to the generator rotor. As a consequence, the rotational speed of the generator electromagnetic field is essentially the same as the reference rotational speed of the reference member, and is substantially independent of the rotational speed of the generator power input shaft. The system includes means to electronically synthesize a reference rotational speed. The system also includes means for varying the effective reference rotational speed to controllably vary the phase relationship of the generator output voltage and the voltage of another electrical system so that the subject electrical generating system can be successfully connected in parallel with other electrical generating systems. Means are included to controllably vary the effective generator displacement angle or power angle to control the power output of the generator system operating in parallel with other generating systems.
Hallidy William M.
Ridout & Maybee Llp
LandOfFree
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