GB2581622A - Vertical axis wind turbine - Google Patents
Vertical axis wind turbine Download PDFInfo
- Publication number
- GB2581622A GB2581622A GB2005245.2A GB202005245A GB2581622A GB 2581622 A GB2581622 A GB 2581622A GB 202005245 A GB202005245 A GB 202005245A GB 2581622 A GB2581622 A GB 2581622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerofoil
- wind energy
- energy gathering
- gathering apparatus
- support structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 10
- 241000272517 Anseriformes Species 0.000 claims abstract 3
- 238000003306 harvesting Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
- F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
- F03D3/067—Cyclic movements
- F03D3/068—Cyclic movements mechanically controlled by the rotor structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Apparatus (1) for harvesting wind energy on a large scale consists of an annular support structure (4), floating on a body of water (2), which can rotate about its hub (3). Multiple vertical aerofoil units (6, 76, 206), mounted at equal intervals around the support structure (4), can pivot independently about a vertical axis (17, 217). The aerofoil units (6, 76, 206) are each held at a suitable angle of attack relative to the ambient wind (7) by vertical canard aerofoils (13, 213) mounted to a boom (12, 212) extending forwards from a leading edge (10) of the main aerofoil (8, 208) of each aerofoil unit (6, 76, 206). A cam follower mechanism (21) in the pivot mounting of each aerofoil unit (6, 76, 206) directs the angle of attack of the canard aerofoils (13, 213), so that the angle of attack of the respective main aerofoil (8, 208) is optimised for the current position of the aerofoil unit (6, 76, 206) around the rotating support structure (4). The main aerofoils (8, 208) thus generate a torque causing the apparatus (1) to rotate. Electrical power is generated from the rotation of the apparatus (1), for example by generators at the hub (3).
Claims (27)
1. Wind energy gathering apparatus comprising a horizontally-extending centrosymmetric support structure, rotatable about a vertical axis extending through central hub means of the apparatus, and a plurality of aerofoil means, each said aerofoil means extending substantially vertically upwardly from the support structure adjacent its circumference, and being spaced equiangularly around said circumference, wherein each said aerofoil means is individually controllably rotatable about a vertical axis and is provided with control means adapted to align the aerofoil means at an optimum angle of attack relative to an incident airflow, said optimum angle of attack being such as to optimise a torque about the central hub means produced by the incident airflow flowing over the respective aerofoil means.
2. Wind energy gathering apparatus as claimed in Claim 1, wherein the optimum angle of attack is such as to produce a controllable level of torque about the central hub means from the respective aerofoil means.
3. Wind energy gathering apparatus as claimed in either Claim 1 or Claim 2, wherein the optimum angle of attack of each of the plurality of aerofoil means is controllable so as to produce from each aerofoil means a torque directed in the same rotational sense about the central hub means.
4. Wind energy gathering apparatus as claimed in any of the preceding claims, wherein the support structure of the apparatus is supported on a body of water.
5. Wind energy gathering apparatus as claimed in Claim 4, wherein the central hub means is mounted on a bed of the body of water, for example on pillar means extending upwardly from the bed of the body of water.
6. Wind energy gathering apparatus as claimed in Claim 4, wherein the central hub means is also supported on the body of water and is anchored in position, for example by a plurality of cables extending to anchor means in the bed of the body of water.
7. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein the support structure and aerofoil means of the apparatus are so supported that a minimum of the weight thereof is borne by the central hub means.
8. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein each aerofoil means of the apparatus is provided with control means to align said aerofoil means controllably at an optimum angle of attack independently of each other aerofoil means.
9. Wind energy gathering apparatus as claimed in Claim 8, wherein said control means adapted to align the aerofoil means is wholly mechanical and comprises no electrical or electronic control elements.
10. Wind energy gathering apparatus as claimed in Claim 9, wherein the control means adapted to align the aerofoil means comprises vane means mounted pivotably to the aerofoil means.
11. Wind energy gathering apparatus as claimed in Claim 10, wherein said vane means is so operatively connected to the aerofoil means that a change in an alignment of the vane means causes a change in the angle of attack of the aerofoil means.
12. Wind energy gathering apparatus as claimed in either Claim 10 or Claim 11, wherein each said vane means is disposed upwind of the respective aerofoil means.
13. Wind energy gathering apparatus as claimed in any one of Claims 10 to 12, wherein said vane means form a canard arrangement with the respective aerofoil means.
14. Wind energy gathering apparatus as claimed in any one of Claims 10 to 13, wherein the vane means is mounted to an elongate body extending irom a leading edge of the aerofoil means.
15. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein each said aerofoil means is rotatable about a vertical axis located between a leading edge and a centre of pressure of the aerofoil means.
16. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein each aerofoil means has a profile symmetrical about its chord.
17. Wind energy gathering apparatus as claimed in any one of Claims 10 to 14, wherein the control means of each aerofoil means comprises means to change a pitch of the vane means relative to a remainder of the aerofoil means.
18. Wind energy gathering apparatus as claimed in Claim 17, wherein the means to change the pitch of the vane means comprises cam means and cam follower means co-operatively connected to extend between the support structure and the rotatable aerofoil means.
19. Wind energy gathering apparatus as claimed in Claim 18, wherein the means to change the pitch of the vane means further comprises means to convert linear motion of the cam follower means to rotational motion.
20. Wind energy gathering apparatus as claimed in Claim 19, wherein the means to change the pitch of the vane means further comprises means to transmit said rotational motion to the vane means.
21. Wind energy gathering apparatus as claimed in any one of the preceding claims wherein the vane means is provided with limiter means adapted to restrict the pitch of the vane means to a particular range of angles.
22. Wind energy gathering apparatus as claimed in any one of the preceding claims, comprising electrical energy generation means.
23. Wind energy gathering apparatus as claimed in Claim 22, wherein said electrical energy generation means is operatively connected to the central hub means of the apparatus.
24. Wind energy gathering apparatus as claimed in Claim 23, wherein the electrical energy generation means is driven by the rotation of the hub means.
25. Wind energy gathering apparatus as claimed in Claim 4, wherein the support structure is surrounded by dam means adapted to retain water flows induced by the rotation of the support structure through the body of water.
26. Wind energy gathering apparatus as claimed in Claim 25, wherein at least one electrical energy generation means is mounted to the dam means, and is adapted to be driven by said water flows.
27. Wind energy gathering apparatus as claimed in Claim 26, wherein means are provided to pump air beneath the support structure to create an air cushion and/or a sheath of bubbles adjacent the support structure, in order to reduce hydrodynamic drag on the support structure as it rotates through the body of water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1716912.9A GB201716912D0 (en) | 2017-10-14 | 2017-10-14 | Vertical axis wind turbine |
| PCT/GB2018/000134 WO2019073189A1 (en) | 2017-10-14 | 2018-10-15 | Vertical axis wind turbine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202005245D0 GB202005245D0 (en) | 2020-05-20 |
| GB2581622A true GB2581622A (en) | 2020-08-26 |
| GB2581622B GB2581622B (en) | 2022-07-27 |
Family
ID=60419347
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1716912.9A Ceased GB201716912D0 (en) | 2017-10-14 | 2017-10-14 | Vertical axis wind turbine |
| GB2005245.2A Expired - Fee Related GB2581622B (en) | 2017-10-14 | 2018-10-15 | Vertical axis wind turbine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1716912.9A Ceased GB201716912D0 (en) | 2017-10-14 | 2017-10-14 | Vertical axis wind turbine |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB201716912D0 (en) |
| WO (1) | WO2019073189A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318939B (en) * | 2019-06-28 | 2021-08-17 | 杭州派祺空气净化科技有限公司 | Wind gathering device for wind power gathering power generation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009225A1 (en) * | 1989-12-19 | 1991-06-27 | The University Of Melbourne | Wind turbine |
| US5676524A (en) * | 1995-03-08 | 1997-10-14 | Lukas; Peter | Vertical-axis wind turbine |
| WO2014080030A1 (en) * | 2012-11-26 | 2014-05-30 | Supervawt Limited | Vertical axis turbine |
| CA2886279A1 (en) * | 2015-03-24 | 2016-09-24 | Rodney D. Macdonald | Wind turbine |
| US9546643B2 (en) * | 2014-12-31 | 2017-01-17 | Ric Enterprises | Revolving overhead windmill |
-
2017
- 2017-10-14 GB GBGB1716912.9A patent/GB201716912D0/en not_active Ceased
-
2018
- 2018-10-15 GB GB2005245.2A patent/GB2581622B/en not_active Expired - Fee Related
- 2018-10-15 WO PCT/GB2018/000134 patent/WO2019073189A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009225A1 (en) * | 1989-12-19 | 1991-06-27 | The University Of Melbourne | Wind turbine |
| US5676524A (en) * | 1995-03-08 | 1997-10-14 | Lukas; Peter | Vertical-axis wind turbine |
| WO2014080030A1 (en) * | 2012-11-26 | 2014-05-30 | Supervawt Limited | Vertical axis turbine |
| US9546643B2 (en) * | 2014-12-31 | 2017-01-17 | Ric Enterprises | Revolving overhead windmill |
| CA2886279A1 (en) * | 2015-03-24 | 2016-09-24 | Rodney D. Macdonald | Wind turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019073189A1 (en) | 2019-04-18 |
| GB201716912D0 (en) | 2017-11-29 |
| GB2581622B (en) | 2022-07-27 |
| GB202005245D0 (en) | 2020-05-20 |
| WO2019073189A4 (en) | 2019-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20231015 |