Variable speed constant frequency synchronous electric power generating system and method of using same

Abstract From the Canadian patent

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, …