IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0920687
(2009-03-04)
|
등록번호 |
US-8698340
(2014-04-15)
|
우선권정보 |
CN-2008 1 0020389 (2008-03-04); CN-2009 1 0028373 (2009-01-22) |
국제출원번호 |
PCT/CN2009/000229
(2009-03-04)
|
§371/§102 date |
20100906
(20100906)
|
국제공개번호 |
WO2009/109107
(2009-09-11)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Nanjing Yuneng Instrument Co., Ltd.
|
대리인 / 주소 |
Pillsbury Winthrop Shaw Pittman, LLP
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
A wind power generation system is presented that includes a number of wind power generation units on the supporting tower, each wind power generation unit is formed by one vertical axis wind rotor and one or more power generation unit(s). The rotation shaft of the wind rotor is coupled with the roto
A wind power generation system is presented that includes a number of wind power generation units on the supporting tower, each wind power generation unit is formed by one vertical axis wind rotor and one or more power generation unit(s). The rotation shaft of the wind rotor is coupled with the rotor shaft of the single generator set through a connector, or the rotation shaft of the wind rotor is connected with the rotor shafts of multiple generator sets through a transmission mechanism. A helical vertical axis wind rotor and a lineal vertical axis wind rotor constructed by a drag type blade and a lift type blade is incorporated having a disassembling and splicing design. With this configuration, the number of the generator sets connected to the single wind rotor in the power generation unit may be adjusted in real time in accordance to different conditions.
대표청구항
▼
1. A wind power generation system, comprising: a vertical axis wind rotor;a transmission mechanism; andgenerator sets and a supporting tower,wherein the vertical axis wind rotor is mounted on the supporting tower and coupled to the multiple generator sets via the transmission mechanism,wherein compo
1. A wind power generation system, comprising: a vertical axis wind rotor;a transmission mechanism; andgenerator sets and a supporting tower,wherein the vertical axis wind rotor is mounted on the supporting tower and coupled to the multiple generator sets via the transmission mechanism,wherein components of said wind rotor include a drag type blade, a lift type blade, a rotation shaft and a partition board, the drag type blade being provided at the center portion adjacent to the rotation shaft of said vertical axis wind rotor, the lift type blade being provided on the outer edge of said vertical axis wind rotor in which an opening is provided between the drag type blade and the lift type blade, several drag type blades and lift type blades being arranged symmetrically around the rotation shaft, and several partition boards divide the integral wind rotor in the axial direction of rotation shaft into several layers of wind rotor units, andwherein several lift type blades are additionally provided on the outer side of said lift type blades in the radial direction of the rotation shaft of the wind rotor in which openings are provided between the lift type blades, the drag type blades and all the lift type blades being arranged symmetrically around the rotation shaft of the wind rotor, and the drag type blades and the innermost lift type blades being secured to the partition board while a rigid frame connection is adopted between the lift type blades. 2. The wind power generation system according to claim 1, wherein a horizontal angle range corresponding to the drag type blade is from 60 degrees to 100 degrees, a horizontal angle range corresponding to the lift type blade is from 20 degrees to 60 degrees; and a horizontal angle range corresponding to the opening between the drag type blade and the lift type blade is from 20 degrees to 60 degrees. 3. The wind power generation system according to claim 1, wherein the drag type blade and lift type blade is composed of several members, the drag type blade members extending by splicing to each other in the horizontal direction, the drag type blade and the lift type blade being fixedly connected with the adjacent upper and lower partition boards in the vertical direction while each layer of partition board is fixedly connected with the rotation shaft, and wherein the circumferences of said drag type blade member and lift type blade member being provided with perforated turn-over edges through which joins between the members and between the members and the partition board are accomplished by rivets. 4. The wind power generation system according to claim 3, wherein the partition board is assembled by several components, the central portion of the partition board being fixedly connected with a flange through rivets while the flange is connected with the partition board by means of a pin key. 5. The wind power generation system according to claim 1, wherein the center of said partition board is a disk at a circumference of which is provided symmetrically with several radial spokes, and the spokes are provided with reinforced ribs in the radial direction and also with fixing back plates, and the reinforced ribs of the spokes are inserted into the notches of the lift type blades which are cut out at the upper and lower ends of the lift type blades, and the lift type blades are fixedly connected with the fixing back plates by screws or rivets. 6. The wind power generation system according to claim 1, wherein the drag type blade and lift type blade are spiral or lineal. 7. A wind power generation system, comprising: a vertical axis wind rotor;a transmission mechanism; andgenerator sets and a supporting tower,wherein the vertical axis wind rotor is mounted on the supporting tower and coupled to the multiple generator sets via the transmission mechanism,wherein the vertical axis wind rotor is a combined helical wind rotor which is formed by splicing and combining several vertical members of the wind rotor along the axial direction of the helical wind rotor, the vertical members of the helical wind rotor being in turn formed by splicing and combining several horizontal members of the wind rotor along the radial direction of the helical wind rotor, and the transmission mechanism is connected with both the helical wind rotor and the rotor shafts of the multiple generator sets,wherein the horizontal member of the helical wind rotor comprises a middle shaft member, a middle member and a peripheral member, in which several middle members are positioned symmetrically on both sides of the middle shaft member and two peripheral vertical members are positioned on the outer side of the middle members,wherein the middle shaft member, middle member and peripheral member are provided at their circumferences with turn-over edges bending towards the direction of the concave curved surface of the members, on which turn-over edges are provided through holes at equal distance, and the turn-over edges of the adjacent members are abutted and riveted together, andwherein at the upper and lower ends of said helical wind rotor is respectively provided connectors which is composed of S-shaped pieces and shaft pins, the upper and lower shaft pins being fixed to the axial center of the upper and lower S-shaped pieces respectively while the upper and lower S-shaped pieces being fixed to the upper end and lower ends of the helical wind rotor respectively, the upper shaft pin being rotatably connected with the supporting frame and the lower shaft pin being connected with a magnetic levitation bearing means. 8. The wind power generation system according to claim 7, wherein the circumferences of said middle shaft member, middle member and peripheral member have shapes of rectangle or triangle or hexagon, the middle shaft member and the middle member, the middle member and the middle member, and the middle member and the peripheral member are spliced and combined with each other along the axial direction and radial direction into a helical wind rotor. 9. The wind power generation system according to claim 7, wherein the magnetic levitation bearing means includes a permanent magnet, a soft-ferromagnetic sleeve, rolling balls, lubricating material and a housing, and wherein the permanent magnets being disposed in the soft-ferromagnetic sleeve with the same poles of the two permanent magnets opposed and several rolling balls evenly located in between the soft-ferromagnetic sleeve, and lubricating material being filled between the soft-ferromagnetic sleeve and the housing as well as between the two permanent magnets and the soft-ferromagnetic sleeve. 10. The wind power generation system according to claim 7, wherein the transmission mechanism comprises a ring-shaped gear and a drive gear, in which the ring-shaped gear is fixedly connected with the vertical axis wind rotor, and wherein several drive gears are engaged with the ring-shaped gear in external meshing or internal meshing, furthermore several drive gears are coupled to the rotor shafts of several generator sets. 11. The wind power generation system according to claim 10, wherein between the drive gear and the rotor shaft of the generator set is provided a clutch which is formed of an excitation stator, a reset spring and a sliding piece, wherein the excitation stator, the reset spring and the sliding piece in turn muff-couple on the rotor shaft of the generator, the drive gear is loosely-fitted connected with the rotor shaft of the generator, the sliding piece is slidingly engaged with the generator rotor by a keyway,wherein under the action of the tension produced by the reset spring, a pin key of the sliding piece is inserted into a pin hole of the drive gear and the drive gear is synchronously rotated with the generator's rotor shaft; andwherein when the excitation stator produces magnetic force, the sliding piece is subjected to the attraction of the magnetic force so as to displace by overcoming the tension of the reset spring, such that the pin key of the sliding piece retreats from the pin hole of the drive gear and the rotor shaft of the generator is disengaged from the synchronized connection with the drive gear.
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