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US 7,154,191 B2Granted
Electrical machine with double-sided rotor
AssigneeGeneral Electric Company
InventorsPatrick Lee Jansen, James Patrick Lyons, Ralph James Carl, Jr., Ronghai Qu, James Michael Fogarty
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Abstract
Machines useful for wind turbine and ship propulsion purposes include a double-sided generator or motor with two concentric air gaps. In one embodiment, the machine includes a double-sided rotor with an inner rotor side and an outer rotor side; and a stator with an inner stator core and an outer stator core, wherein the double-sided rotor is concentrically disposed between the inner stator core and the outer stator core.
Claims28
A wind turbine generator, comprising:
- at least one double-sided rotor with an inner rotor side comprising at least one first permanent magnet and an outer rotor side comprising at least one second permanent magnet;
- and
- at least one stator with an inner stator core comprising an inner stator winding and an outer stator core comprising an outer stator winding, wherein the at least one double-sided rotor is concentrically disposed between the inner stator core and the outer stator core of the wind turbine generator and wherein the inner stator core and the inner rotor side are located to oppose each other with a first air gap disposed therebetween and wherein the outer rotor side and the outer stator core are located to oppose each other with a second air gap disposed therebetween and further wherein the at least one double-sided rotor and at least one stator cooperate to produce at least 2.0 megawatts of power.
A wind turbine comprising:
- a wind turbine generator comprising:
- at least one double-sided rotor with an inner rotor side comprising at least one first permanent magnet and an outer rotor side comprising at least one second permanent magnet;
- and
- at least one stator with an inner stator core comprising an inner stator winding and an outer stator core comprising an outer stator winding, wherein the at least one double-sided rotor is concentrically disposed between the inner stator core and the outer stator core of the wind turbine generator and wherein the inner stator core and the inner rotor side are located to oppose each other with a first air gap disposed therebetween and wherein the outer rotor side and the outer stator core are located to oppose each other with a second air gap disposed therebetween, and further wherein the wind turbine generator produces at least 2.0 megawatts of power.
1 more element
Dependencies are inferred from the claim text.