CN109653941A - A kind of blade gathers formula anti-strong wind wind power generating set and its control method - Google Patents
A kind of blade gathers formula anti-strong wind wind power generating set and its control method Download PDFInfo
- Publication number
- CN109653941A CN109653941A CN201811607034.1A CN201811607034A CN109653941A CN 109653941 A CN109653941 A CN 109653941A CN 201811607034 A CN201811607034 A CN 201811607034A CN 109653941 A CN109653941 A CN 109653941A
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- China
- Prior art keywords
- blade
- wind
- strong wind
- power generating
- generating set
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- 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
The invention discloses a kind of blades to gather formula anti-strong wind wind power generating set and its control method, fan body including having at least two blades, wherein, each blade can be rotated around the wheel hub rotation centerline of fan body as needed, it can produce relative rotation between blade, in this way when strong wind comes temporarily, blade is all gathered downwards by each autorotation, and it partly overlaps or is all overlapped each other, to reduce the total front face area of blade, and the wind speed below wheel hub is smaller than its eminence, finally blade is locked, can be realized reduces the purpose for acting on the wind load on blade during strong wind from source, so that during strong wind occurs, rack load is in relatively low level always, it can effectively avoid blade broken, the unit accidents such as collapse occur.
Description
Technical field
The present invention relates to the technical field of wind-power electricity generation, refers in particular to a kind of blade and gather formula anti-strong wind wind power generating set
And its control method.
Background technique
China has a vast territory, and wind energy resources are relatively abundanter.Wind energy resources area abundant be mainly distributed on three northern areas of China with
And southeastern coast such as Guangdong, Fujian, Jiangsu and neighbouring island, and offshore wind energy resource is very rich, but southeastern coast area
Although domain wind-resources preferably, also belong to the multiple area of strong wind, maximum wind velocity is even up to a kind of wind speed or more.As wind-force is sent out
The progress of power technology, power of fan are also stepping up, and have evolved to 8MW or even 10MW machine by original common 1.5MW
The fan blade of group, MW class is all long, and monolithic is in 50~80m or so, and hub height has had reached 100m, even
110m.Under the high wind conditions that exceedingly odious weather, such as southeastern coast are easily sent out, blade front face area is big and is in height in the air, this
When blade will undertake huge load, unit is easy to the impact due to extreme environmental condition, and generates destruction, such as blade
It fractures, the accidents such as unit collapses.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology with it is insufficient, propose a kind of blade and gather formula anti-strong wind wind
Power generator group and its control method are gathered downwards by blade, can effectively reduce the front face area of blade, to reduce blade
Wind load, avoid blade broken, the unit accidents such as collapse from occurring.
To achieve the above object, technical solution provided by the present invention is as follows:
A kind of blade gathers formula anti-strong wind wind power generating set, the fan body including having at least two blades, each
Blade can be rotated around the wheel hub rotation centerline of fan body as needed, i.e., can produce relative rotation between blade,
In this way when strong wind comes temporarily, blade can be made by rotating all bunched portion overlappings downwards or whole overlappings with being effectively reduced
With the wind load on blade.
Above-mentioned blade gathers the control method of formula anti-strong wind wind power generating set, specific as follows:
In normal mode, i.e., under non-strong wind mode, blade is locked all on wheel hub, opposite can not be turned each other
It is dynamic, unit normal power generation；And under strong wind mode, blade is all gathered downwards by each autorotation, and part weight each other
Folded or all overlappings, to reduce the total front face area of blade, and the wind speed below wheel hub is smaller than its eminence, finally by blade
Locking, can be realized reduces the purpose for acting on the wind load on blade during strong wind from source, so that the phase occurs for strong wind
Between, rack load is in relatively low level always.
Compared with prior art, the present invention have the following advantages that with the utility model has the advantages that
Traditional wind power generating set, blade windward side is larger, due to the influence of wind shear, the blade in unit top
The wind load that windward side is subject to impacts maximum, comes temporarily in strong wind in this way, blade will will receive the impact of strong wind, it is likely that blade
It can fracture or unit collapses, therefore, based on pain spot above, novel wind generator group designed by us is come in strong wind
Temporarily, blade can all be gathered downwards, reduce its front face area, and all concentrate on lower part wind speed and also want higher position will
It is small very much, finally blade is locked, the wind load acted on blade is thus reduced from source, to effectively avoid
Blade broken, the unit accidents such as collapse occur.
Detailed description of the invention
Fig. 1 is the main view that blade gathers formula anti-strong wind wind power generating set.
Fig. 2 gathers downwards axonometric drawing for the blade that blade gathers formula anti-strong wind wind power generating set.
Fig. 3 gathers downwards main view for the blade that blade gathers formula anti-strong wind wind power generating set.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Referring to shown in Fig. 1 to Fig. 3, blade provided by the present embodiment gathers formula anti-strong wind wind power generating set, including band
There is the fan body 1 of at least two blades 11, wherein each blade 11 can be as needed around the wheel hub 12 of fan body 1
Rotation centerline rotation, i.e., can produce relative rotation between blade 11.
It is specific as follows the following are the control method that the above-mentioned blade of the present embodiment gathers formula anti-strong wind wind power generating set:
In normal mode, i.e., under non-strong wind mode, blade 11 is locked all on wheel hub 12, each other can not be opposite
Rotation, unit normal power generation；And under strong wind mode, blade 11 is all gathered downwards by each autorotation, such as Fig. 2 and Fig. 3 institute
Show, and partly overlap or be all overlapped each other, to reduce the total front face area of blade, and the wind speed ratio of 12 lower section of wheel hub
Its eminence is smaller, finally locks blade 11, and can be realized reduces the wind acted on blade 11 during strong wind from source
The purpose of load, so that rack load is in relatively low level always, effectively avoids blade broken, machine during strong wind occurs
The group accidents such as collapse occur.
Embodiment described above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention, therefore
All shapes according to the present invention change made by principle, should all be included within the scope of protection of the present invention.
Claims (2)
1. a kind of blade gathers formula anti-strong wind wind power generating set, the fan body including having at least two blades, feature
Be: each blade can be rotated around the wheel hub rotation centerline of fan body as needed, i.e., can generate between blade
It relatively rotates, in this way when strong wind comes temporarily, blade can be by rotating all bunched portion overlappings downwards or whole overlappings, to have
Effect reduces the wind load acted on blade.
2. the control method that blade described in a kind of claim 1 gathers formula anti-strong wind wind power generating set, it is characterised in that: normal
Under scale formula, i.e., under non-strong wind mode, blade is locked all on wheel hub, can not be relatively rotated each other, unit is normally sent out
Electricity；And under strong wind mode, blade is all gathered downwards by each autorotation, and partly overlaps or be all overlapped each other,
To reduce the total front face area of blade, and the wind speed below wheel hub is smaller than its eminence, finally locks blade, can be realized
The purpose for acting on the wind load on blade is reduced from source during strong wind, so that rack load begins during strong wind occurs
It is in relatively low level eventually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607034.1A CN109653941A (en) | 2018-12-27 | 2018-12-27 | A kind of blade gathers formula anti-strong wind wind power generating set and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607034.1A CN109653941A (en) | 2018-12-27 | 2018-12-27 | A kind of blade gathers formula anti-strong wind wind power generating set and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109653941A true CN109653941A (en) | 2019-04-19 |
Family
ID=66116876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811607034.1A Pending CN109653941A (en) | 2018-12-27 | 2018-12-27 | A kind of blade gathers formula anti-strong wind wind power generating set and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109653941A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283024A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | A wind wheel with adjustable blade position and its working method |
| CN112283023A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | Double-blade wind wheel with variable blade positions and working method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052640A1 (en) * | 2002-09-12 | 2004-03-18 | Ghazi Khan | All weather windmills |
| US20070243063A1 (en) * | 2006-03-17 | 2007-10-18 | Schellstede Herman J | Offshore wind turbine structures and methods therefor |
| CN104314761A (en) * | 2014-08-25 | 2015-01-28 | 丁健威 | Blade-foldable wind-power generator |
| CN105593469A (en) * | 2013-06-07 | 2016-05-18 | 3相能源系统有限公司 | Wind generator with lightweight adjustable blades |
| WO2017187459A1 (en) * | 2016-04-28 | 2017-11-02 | OMEGAWIND S.r.I. | Method for folding wind blades and method for opening wind blades for a wind turbine having foldable blades |
| CN107387309A (en) * | 2017-08-08 | 2017-11-24 | 上海交通大学 | A kind of Anti-Typhoon blower fan of folding-jib |
-
2018
- 2018-12-27 CN CN201811607034.1A patent/CN109653941A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040052640A1 (en) * | 2002-09-12 | 2004-03-18 | Ghazi Khan | All weather windmills |
| US20070243063A1 (en) * | 2006-03-17 | 2007-10-18 | Schellstede Herman J | Offshore wind turbine structures and methods therefor |
| CN105593469A (en) * | 2013-06-07 | 2016-05-18 | 3相能源系统有限公司 | Wind generator with lightweight adjustable blades |
| CN104314761A (en) * | 2014-08-25 | 2015-01-28 | 丁健威 | Blade-foldable wind-power generator |
| WO2017187459A1 (en) * | 2016-04-28 | 2017-11-02 | OMEGAWIND S.r.I. | Method for folding wind blades and method for opening wind blades for a wind turbine having foldable blades |
| CN107387309A (en) * | 2017-08-08 | 2017-11-24 | 上海交通大学 | A kind of Anti-Typhoon blower fan of folding-jib |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283024A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | A wind wheel with adjustable blade position and its working method |
| CN112283023A (en) * | 2020-11-18 | 2021-01-29 | 西安热工研究院有限公司 | Double-blade wind wheel with variable blade positions and working method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
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| RJ01 | Rejection of invention patent application after publication |