Method and apparatus for a superconducting direct current generator driven by a wind turbine
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-009/00
H02P-009/04
H02K-009/00
출원번호
US-0173633
(2011-06-30)
등록번호
US-8338979
(2012-12-25)
발명자
/ 주소
Bray, James William
출원인 / 주소
General Electric Company
대리인 / 주소
Agosti, Ann M.
인용정보
피인용 횟수 :
2인용 특허 :
30
초록▼
A direct current generating including an annular armature connectable to rotate with a rotating component of a wind turbine and a stationary annular field winding coaxial to the armature and separated by a gap from the armature. The field winding is configured to include superconducting coil magnets
A direct current generating including an annular armature connectable to rotate with a rotating component of a wind turbine and a stationary annular field winding coaxial to the armature and separated by a gap from the armature. The field winding is configured to include superconducting coil magnets and a support structure connectable to an upper region of a tower of the wind turbine. The direct current generator further including a commutator assembly configured to transfer DC current generated by the rotating armature to a power conversion system.
대표청구항▼
1. A direct current (DC) generator comprising: an annular armature connectable to rotate with a rotating component of a wind turbine;a stationary annular field winding coaxial to the armature and separated by a gap from the armature, wherein the field winding includes superconducting coil magnets;a
1. A direct current (DC) generator comprising: an annular armature connectable to rotate with a rotating component of a wind turbine;a stationary annular field winding coaxial to the armature and separated by a gap from the armature, wherein the field winding includes superconducting coil magnets;a non-rotating support for the field winding;a fixed support coupling the non-rotating support for the field winding to a base fixed to an upper region of the wind turbine, wherein the fixed support is connected at one end region to the non-rotating support and is connected at an opposite end region to the base, and wherein the fixed support suspends the field winding over the base; anda commutator assembly configured to transfer DC current generated by the rotating armature to a power conversion system, wherein the commutator assembly comprises: a rotating first portion disposed proximate the annular armature and configured to rotate therewith; anda stationary second portion coupled to a stationary platform and configured to receive energy generated by the rotating annular armature through the rotating first portion as an output direct current. 2. The DC generator of claim 1, wherein the stationary platform is configured in electrical communication with the power conversion system. 3. The DC generator of claim 1, wherein the rotating first portion comprises at least two commutator segments, disposed proximate the annular armature and configured to rotate therewith, the at least two commutator segments configured in electrical contact with the rotating armature. 4. The DC generator of claim 3, wherein the at least two commutator segments are electrically connected to a plurality of wire ends of the annular armature. 5. The DC generator of claim 3, wherein the stationary second portion comprises at least two stationary commutator brushes coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current. 6. The DC generator of claim 1, wherein the rotating first portion comprises at least two rotating commutator brushes disposed proximate the annular armature and configured to rotate therewith, the at least two rotating commutator brushes configured in electrical contact with the rotating armature. 7. The DC generator of claim 6, wherein the at least two commutator brushes are electrically connected to a plurality of wire ends of the annular armature. 8. The DC generator of claim 6, wherein the stationary second portion comprises at least two commutator segments, coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current. 9. The DC generator of claim 1, wherein the generator is mounted on top of a tower. 10. The DC generator of claim 1, further comprising at least one re-condenser mounted at a higher elevation than the field winding. 11. A direct current (DC) generator for a wind turbine mounted on a tower comprising: an annular armature driven directly by a wind turbine and rotating with a rotating component of the wind turbine;a non-rotating annular field winding coaxial to the armature and separated by an annular gap from the armature, wherein the field winding includes superconducting coil magnets;a non-rotating support for the field winding;a fixed support coupling the non-rotating support for the field winding to a base fixed to an upper region of the wind turbine, wherein the fixed support is connected at one end region to the non-rotating support and is connected at an opposite end region to the base, and wherein the fixed support suspends the field winding over the base; anda commutator assembly configured to transfer DC current generated by the rotating armature to a power conversion system, the commutator assembly comprising a rotating first portion disposed proximate the annular armature and configured to rotate therewith and a stationary second portion coupled to a stationary platform and configured to receive direct current generated by the rotating armature through the at least two commutator segments. 12. The DC generator of claim 11, wherein the rotating first portion comprises at least two commutator segments, disposed proximate the annular armature and configured to rotate therewith, the at least two commutator segments configured in electrical contact with the rotating armature. 13. The DC generator of claim 12, wherein the stationary second portion comprises at least two stationary commutator brushes coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current. 14. The DC generator of claim 11, wherein the rotating first portion comprises at least two rotating commutator brushes disposed proximate the annular armature and configured to rotate therewith, the at least two rotating commutator brushes configured in electrical contact with the rotating armature. 15. The DC generator of claim 14, wherein the stationary second portion comprises at least two commutator segments, coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current. 16. A method for generating a direct current (DC) for a wind turbine comprising: generating a magnetic field in a non-rotating annular field winding in a DC generator, wherein the field winding includes superconducting coil magnets and the DC generator is mounted in an upper section of a tower for a wind turbine;applying torque from the wind turbine to rotate an armature of the DC generator, wherein the armature is coaxial and electromagnetically coupled to the superconducting field winding;generating electrical current in the armature by the rotation of the armature around the stationary field winding;transferring the direct current from the rotating armature to a power conversion system via a commutating assembly wherein a rotating first portion is disposed proximate the annular armature and configured to rotate therewith, the rotating first portion configured in electrical contact with the rotating armature and a stationary second portion is coupled to a stationary platform and configured to receive energy generated by the rotating first portion;cooling the superconducting coil magnets to a superconducting condition using a cooling liquid that is at least partially vaporized as it cools the coils; andcondensing the vaporized cooling liquid in a re-condenser elevated above the DC generator, wherein the condensed cooling liquid flows by gravity to the superconducting coil magnets. 17. The method of claim 16, further comprising transferring the direct current via the commutator assembly wherein the rotating first portion comprises at least two commutator segments, disposed proximate the annular armature and configured to rotate therewith, the at least two commutator segments configured in electrical contact with the rotating armature and wherein the stationary second portion comprises at least two stationary commutator brushes coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current. 18. The method of claim 16, further comprising transferring the direct current via the commutator assembly wherein the rotating first portion comprises at least two rotating commutator brushes disposed proximate the annular armature and configured to rotate therewith, the at least two rotating commutator brushes configured in electrical contact with the rotating armature and wherein the stationary second portion comprises at least two commutator segments, coupled to the stationary platform and configured to receive energy generated by the rotating armature through the at least two rotating commutator segments as an output direct current.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (30)
Weghaupt Erich (Mlheim an der Ruhr DEX) Intichar Lutz (Erlangen DEX) Schnapper Christoph (Erlangen DEX), Arrangement for cooling a super conducting field winding and a damper shield of the rotor of an electric machine.
Evangelos Trifon Laskaris ; Robert Adolph Ackermann ; Yu Wang, Cryogenic cooling refrigeration system for rotor having a high temperature super-conducting field winding and method.
Evangelos Trifon Laskaris ; Robert Adolph Ackermann ; Yu Wang, Cryongenic cooling refrigeration system and method having open-loop short term cooling for a superconducting machine.
Wang, Yu; Nygard, Robert John; Laskaris, Evangelos Trifon; Alexander, James Pellegrino, High temperature super-conducting rotor coil support with split coil housing and assembly method.
Kwon, Young Kil; Kim, Ho Min; Baik, Seung Kyu; Lee, Eon Young; Lee, Jae Deuk; Lee, Sang Ho; Kim, Yeong Chun; Jo, Young Sik; Ryu, Gang Sik, Superconducting synchronous machine.
Wang, Qiuliang; Hu, Xinning; Yan, Luguang; Dai, Yinming; Wang, Hui, Superconducting magnet system for high power microwave source focusing and cyclotron electronic apparatus.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.