Electrical machine with double-sided lamination stack
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-009/00
출원번호
US-0951329
(2004-09-27)
발명자
/ 주소
Jansen,Patrick Lee
Lyons,James Patrick
Carl, Jr.,Ralph James
Qu,Ronghai
Fogarty,James Michael
Bagepalli,Bharat Sampathkumaran
Gadre,Aniruddha Dattatraya
Garg,Jivtesh
Lopez,Fulton Jose
출원인 / 주소
General Electric Company
인용정보
피인용 횟수 :
38인용 특허 :
19
초록▼
The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wind turbine generator. The doub
The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wind turbine generator. The double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side. Examples of particularly useful embodiments for the machine include wind turbine generators and ship propulsion motors.
대표청구항▼
What is claimed is: 1. A wind turbine comprising: a direct drive wind turbine generator, the generator comprising: at least one rotor comprising an inner rotor core comprising at least one first permanent magnet and an outer rotor core comprising at least one second permanent magnet, wherein the ou
What is claimed is: 1. A wind turbine comprising: a direct drive wind turbine generator, the generator comprising: at least one rotor comprising an inner rotor core comprising at least one first permanent magnet and an outer rotor core comprising at least one second permanent magnet, wherein the outer rotor core is inverted with respect to the inner rotor core; and at least one double-sided stator comprising an inner stator side including an inner stator winding disposed about one side of a double-sided lamination stack, an outer stator side including an outer stator winding disposed about an opposing side of the doublesided lamination stack, wherein the at least one double-sided stator is disposed concentrically between the inner rotor core and the outer rotor core and is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side and wherein the at least one rotor and at least one double-sided stator cooperate to produce at least 2.0 megawatts of power. 2. The wind turbine of claim 1, wherein the double-sided lamination stack is configured to enable the magnetic flux to flow radially between the inner stator side and the outer stator side. 3. The wind turbine of claim 2, further comprising a plurality of axial bolts for providing compression of the double-sided lamination stack. 4. The wind turbine of claim 3, wherein the plurality of axial bolts are sufficiently long enough for mounting of the double-sided lamination stack to a stationary frame. 5. A generator for a wind turbine comprising: at least one rotor including an inner rotor core and an outer rotor core; and at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, the inner stator side and the outer stator side comprising a double-sided lamination stack, wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the generator, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side; and further comprising a cooling duct for cooling the wind turbine generator via passing of at least one of cooling air or a liquid cooling medium, wherein the cooling duct comprises an axial cooling duct in the double-sided stator and wherein the cooling duct is located between at least two adjacent stator coils of a respective stator slot. 6. The generator of claim 5, wherein the double-sided lamination stack is configured to enable the magnetic flux to flow radially between the inner stator side and the outer stator side. 7. The generator of claim 5, further comprising a plurality of axial bolts for providing compression of the double-sided lamination stack. 8. The generator of claim 7, wherein the plurality of axial bolts are sufficiently long enough for mounting of the double-sided lamination stack to a stationary frame. 9. A generator for a wind turbine comprising: at least one rotor including an inner rotor core and an outer rotor core; and at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, the inner stator side and the outer stator side comprising a double-sided lamination stack, wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the generator, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side; further comprising a cooling duct for cooling the wind turbine generator via passing of at least one of cooling air or a liquid cooling medium and wherein the cooling duct is located in a plurality of slots of the double-sided stator. 10. A generator for a wind turbine comprising: at least one rotor including an inner rotor core and an outer rotor core; and at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, the inner stator side and the outer stator side comprising a double-sided lamination stack, wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the generator, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side, and wherein the inner stator side and the inner rotor core define an inner air gap and the outer stator side and the outer rotor core define an outer air gap, and wherein portion of cooling air flows axially through the inner and outer air gap. 11. A wind turbine comprising: a wind turbine generator, the generator comprising: at least one rotor comprising an inner rotor core and an outer rotor core, wherein the outer rotor core is inverted with respect to the inner rotor core; at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side; and a cooling duct for cooling the wind turbine generator via passing of at least one of cooling air or a liquid cooling medium, wherein the cooling duct comprises an axial cooling duct in the double-sided stator and wherein the cooling duct is located between at least two adjacent stator coils of a respective stator slot. 12. A wind turbine comprising: a wind turbine generator, the generator comprising: at least one rotor comprising an inner rotor core and an outer rotor core, wherein the outer rotor core is inverted with respect to the inner rotor core; at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side; and a cooling duct for cooling the wind turbine generator via passing of at least one of cooling air or a liquid cooling medium, wherein the cooling duct is located in a plurality of slots of the double-sided stator. 13. A wind turbine comprising: a wind turbine generator, the generator comprising: at least one rotor comprising an inner rotor core and an outer rotor core, wherein the outer rotor core is inverted with respect to the inner rotor core; at least one double-sided stator comprising an inner stator side including an inner stator winding, an outer stator side including an outer stator winding, wherein the at least one double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side and wherein the inner stator side and the inner rotor core define an inner air gap and the outer stator side and the outer rotor core define an outer air gap, and wherein portion of cooling air flows axially through the inner and outer air gap.
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이 특허에 인용된 특허 (19)
Maslov, Boris A.; Sogomonian, Zareh, Cascaded rotary electric motors having axial and radial air gaps.
Rabe ; deceased Erich (late of Buchenbach DEX by Hans-Joachim Rabe ; legal representative), Permanent magnet DC machine having meander-like stator windings for producing high torque without excessive heating.
Kvam, Michael A.; Sullivan, Brian J.; Duford, James David; Jore, James D.; Jore, Matthew B.; Samsel, David; Smith, James S., Devices and methods for magnetic pole and back iron retention in electromagnetic machines.
Jansen, Patrick Lee; Fogarty, James Michael; Carl, Jr., Ralph James; Lyons, James Patrick Francis; Qu, Ronghai, Electrical machine with double-sided rotor.
Jansen, Patrick Lee; Fogarty, James Michael; Carl, Jr., Ralph James; Lyons, James Patrick Francis; Qu, Ronghai, Electrical machine with double-sided stator.
Smith, James S.; Pillsbury, Robert; Sullivan, Brian J., Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements.
Smith, James S.; Pillsbury, Robert; Sullivan, Brian J., Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements.
Carl, Jr., Ralph James; Bagepalli, Bharat Sampathkumaran; Jansen, Patrick Lee; Dawson, Richard Nils; Qu, Ronghai; Avanesov, Mikhail Avramovich, Method and apparatus for assembling a permanent magnet pole assembly.
Smith, James S.; Duford, James D.; Jore, James D.; Jore, Lincoln M.; Jore, Matthew B.; Sullivan, Brian J., Methods and apparatus for overlapping windings.
Smith, James S.; Eichinger, Marc W.; Eisen, Stephane A.; Jore, James D.; Kvam, Michael A.; Sullivan, Brian J., Methods and apparatus for segmenting a machine.
Jore, Matthew B.; Jore, Lincoln; Kvam, Michael A.; Jore, James D.; Samsel, David; Duford, James David; Smith, James S., Systems and methods for improved direct drive generators.
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