Patent ID: 6954004

Claim:
An electro-mechanical energy conversion system to selectively convert and transfer energy from an input energy source to an output energy load comprising an energy converter device coupled between the input energy source and the output energy load to convert the energy from the input energy source and to transfer the converted energy to the output energy load and an energy conversion and transfer control operatively coupled to said energy converter device to selectively control the energy converted from the input energy source and transferred to the output energy load in response to a plurality of predetermined conditions or parameters wherein the energy converter device comprises an energy converter section including a doubly fed induction machine having a rotor and stator to selectively convert the energy from the input energy source and to selectively transfer the converted energy to the output energy load and an energy transfer section including a plurality of stator control elements coupled to said stator and a plurality of rotor control elements coupled to said rotor of said induction machine, said plurality of stator control elements and said plurality of rotor control elements operatively coupled by a bidirectional resonant transfer link to selectively transfer energy between said rotor and said stator to control the operation of said doubly fed induction machine and wherein said energy conversion and transfer control comprises an energy converter control to control the operation of said energy converter device and a source/load control to control the operation of the input energy source and output energy load with respect to said energy converter device wherein said electro-mechanical energy conversion system further includes an isolation element is coupled between said plurality of stator control elements and said plurality of rotor control elements and wherein said energy transfer device further includes a stator ground energy transfer control element and a rotor ground energy transfer control element coupled between ground and the stator and rotor side of said bi-directional resonant transfer link.