IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0596777
(2005-05-13)
|
등록번호 |
US-7602074
(2009-10-28)
|
우선권정보 |
DE-10 2004 024 563(2004-05-18) |
국제출원번호 |
PCT/EP05/005267
(2005-05-13)
|
§371/§102 date |
20061116
(20061116)
|
국제공개번호 |
WO05/113964
(2005-12-01)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Vidas, Arrett & Steinkraus, P.A.
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
5 |
초록
▼
A wind power installation with a rotor, a generator for generating electric power, at least one rotatably mounted rotor blade displaceable about its longitudinal axis for adjusting the angle of attack, and an auxiliary generator for generating electric power for at least one consumer, characterized
A wind power installation with a rotor, a generator for generating electric power, at least one rotatably mounted rotor blade displaceable about its longitudinal axis for adjusting the angle of attack, and an auxiliary generator for generating electric power for at least one consumer, characterized in that the auxiliary generator produces electricity for a controller for the rotor blade adjustment and for a drive for adjusting the angle of attack of at least one rotor blade at a lower range of rotational speed in comparison to the rotational speed in normal operation, wherein the controller for the angle of attack is controlled or regulated for sustained operation in the range of the rotational speed.
대표청구항
▼
The invention claimed is: 1. A wind power installation comprising: a rotor; a generator for generating electric power, at least one rotatably mounted rotor blade (1) displaceable about its longitudinal axis for adjusting the angle of attack, and an auxiliary generator (8) for generating electric po
The invention claimed is: 1. A wind power installation comprising: a rotor; a generator for generating electric power, at least one rotatably mounted rotor blade (1) displaceable about its longitudinal axis for adjusting the angle of attack, and an auxiliary generator (8) for generating electric power for at least one consumer (12, 13, 14, 15, 16), characterized in that the auxiliary generator (8) produces electricity for a controller for the rotor blade adjustment and for a drive for adjusting the angle of attack of the at least one rotatably mounted rotor blade at a lower range of rotational speed in comparison to the rotational speed in normal operation, wherein the controller for the angle of attack is controlled or regulated for sustained operation in the range of the rotational speed, and further characterized in that switching means are provided which switch on the auxiliary generator as an emergency power supply for actuation by the rotor in the event of a network power supply outage. 2. A wind power installation according to claim 1, characterized in that each at least one rotatably mounted rotor blade is provided with one drive each for adjusting the angle of attack, each of which can be supplied by the auxiliary generator (8). 3. A wind power installation according to claim 1, characterized in that a controller for the angle of a machine gondola and an azimuth drive for adjusting the orientation of the machine gondola with the rotor is provided, wherein the azimuth drive is supplied with power by the auxiliary generator (8). 4. A wind power installation according to claim 1, characterized in that the switching means (9) are of mechanical, hydraulic, pneumatic and/or electrical configuration. 5. A wind power installation according to claim 4, characterized in that a coupler (9) which is opened in normal operation and which closes automatically in the event of power failure is provided as said switching means. 6. A wind power installation according to claim 5, characterized in that the coupler (9) closes in time-delayed manner. 7. A wind power installation according to claim 5, characterized in that the coupler (9) is opened mechanically, pneumatically, electrically and/or hydraulically in normal operation. 8. A wind power installation according to claim 5, characterized in that the coupler opens automatically upon the exceeding of a first predefined rotational speed and closes automatically upon falling below a second predefined rotational speed. 9. A wind power installation according to claim 8, characterized in that the first predefined rotational speed is equal to the second predefined rotational speed. 10. A wind power installation according to claim 8, characterized in that the second predefined rotational speed corresponds approximately to the rotational speed for the auxiliary generator (8). 11. A wind power installation according to claim 4, characterized in that a brake is provided which is applied prior to the auxiliary generator switching on until a rotational speed specified for the auxiliary generator is reached. 12. A wind power installation according to claim 1, characterized in that the auxiliary generator (8) is driven by the rotor during normal operation and an electrical connection with the consumers (12, 13, 14, 15, 16) is produced when the rotational speed specified for the auxiliary generator is reached. 13. A wind power installation according to claim 12, characterized in that the switching means comprises a contactor which is open during normal operation and which closes upon power failure. 14. A wind power installation according to claim 13, characterized in that the contactor closes in a time-delayed manner. 15. A wind power installation according to claim 12, characterized in that the switching means additionally comprises a rectifier, converter and/or inverter. 16. A wind power installation according to claim 1, characterized in that the auxiliary generator (8) is coupled to the rotor by means of a drive (4). 17. A wind power installation according to claim 1, characterized in that the auxiliary generator (8) is of self-excited or permanently-excited configuration. 18. A wind power installation according to claim 1, characterized in that the auxiliary generator (8) is of separate-excited configuration. 19. A wind power installation according to claim 1, characterized in that the generator (6) comprises switching means which allows operation of the generator (6) as an auxiliary generator in a connected state. 20. A wind power installation according to claim 1, characterized in that at least one accumulator is additionally provided for an uninterruptible power supply which the auxiliary generator supplies as a consumer. 21. A method for the control of a wind power installation having at least one rotor blade, the angle of attack of which is adjustable about its longitudinal axis, characterized by: providing the wind power installation of claim 1; further characterized by: a mode of operation at a slower rotational speed compared to normal operation at which an auxiliary generator generates electrical power, and a controller which adjusts the angle of attack of the rotor blade for a sustained operation of the auxiliary generator at the reduced rotational speed, wherein at least the controller and one drive for adjusting the rotor blade are supplied by the auxiliary generator.
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