CN102418666A - Wind generating set and blade thereof - Google Patents
Wind generating set and blade thereof Download PDFInfo
- Publication number
- CN102418666A CN102418666A CN2011103792761A CN201110379276A CN102418666A CN 102418666 A CN102418666 A CN 102418666A CN 2011103792761 A CN2011103792761 A CN 2011103792761A CN 201110379276 A CN201110379276 A CN 201110379276A CN 102418666 A CN102418666 A CN 102418666A
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- blade
- aileron
- wind
- generating set
- wind regime
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- 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
Abstract
The invention discloses a blade for a wind generating set. The blade comprises a blade body and an aileron, wherein the aileron is arranged at the tail part of the blade, the aileron is rotatably connected with the blade body, and the aileron rotates under the action of a power element along a direction from a suction surface to a pressure surface of the blade or a direction from the pressure surface to the suction surface. The blade is provided with the aileron with an adjustable direction, when a wind condition changes, the aileron can be adjusted according to the change of the wind conditions, so that the state of the blade always adapts to the current wind condition, therefore adaptability of the blade in different wind fields is enhanced, and application range of the blade is enlarged; meanwhile, in the same wind field, pneumatic shape parameters of the blade are changed in time according to the change of the wind conditions, and stronger wind catching capability of the blade under various wind conditions is achieved, therefore fan efficiency under different wind conditions is ensured. The invention also discloses a wind generating set comprising the blade.
Description
Technical field
The present invention relates to technical field of wind power generating equipment, particularly a kind of blade that is used for wind power generating set.The invention still further relates to a kind of wind power generating set that comprises above-mentioned blade.
Background technique
Along with the outburst of energy crisis in the world wide, renewable energy sourcess such as wind-force are used more and more widely, thereby have driven the development of wind-power generating system.
Wind-driven generator is a kind ofly to convert wind resource the mechanical device of electric energy into, and the needed device of wind-power electricity generation is called wind power generating set (hereinafter to be referred as blower fan), and blower fan generally comprises wind wheel, generator and tower tube three parts; Wherein, wind wheel mainly comprises wheel hub and blade, when wind during to blade, produces aerodynamic force on the blade and drives wind wheel and rotate.Blade is the source of blower fan capturing wind energy, and the ability of blade capturing wind energy directly has influence on the efficient of blower fan.General fan blade is once creating, and its aerodynamic configuration size is also just fixing, and aeroperformance, the aerodynamic loading of blade in running all is nonadjustable.The kind of operating conditions such as working environment in the different wind fields and wind regime is more, and the profile form of blade is limited, and it is too high to want to design optimal blade cost at different wind fields, and design flow is excessive, and blade is relatively poor to the adaptive capacity of different wind fields; Simultaneously, in same wind field, wind regime such as wind direction are comparatively complicated and changeable, when wind regime changes, need adjust blade capturing wind energy ability through pitch-controlled system, and control procedure is comparatively complicated, and adjustment range is limited.
Therefore, how to improve the adaptive capacity of blade in different wind fields, enlarge the Applicable scope of blade, thereby guarantee the fan efficiency under the different wind regime, just become the problem that those skilled in the art need solve.
Summary of the invention
The purpose of this invention is to provide a kind of blade that is used for wind power generating set; This blade has the adjustable aileron of direction, and when wind regime changed, aileron can be adjusted thereupon; Make the state of blade can adapt to current wind regime all the time; Improve the adaptive capacity of blade in different wind fields, enlarged the Applicable scope of blade, thereby guaranteed the fan efficiency under the different wind regime.Another object of the present invention provides a kind of wind power generating set that comprises above-mentioned blade.
For solving the problems of the technologies described above; The present invention provides a kind of blade that is used for wind power generating set; Comprise blade body; Also comprise the aileron that is arranged at said blade afterbody, said aileron and said blade body are rotationally connected, the direction of said aileron suction surface to pressure side of said blade in the effect lower edge of dynamical element, the perhaps direction rotation of the said pressure side in edge to said suction surface.
Preferably, said aileron comprises multistage, and the said aileron of each section is along the width direction setting of said blade.
Preferably, also comprise first Detecting element and first control unit; Said first Detecting element is used to detect the instantaneous wind regime of said aileron; And instantaneous wind regime information is sent to said first control unit; Said first control unit receives said instantaneous wind regime information; And detected instantaneous wind regime and first is scheduled to wind regime compares, said first control unit is controlled the rotation amplitude of said aileron according to the comparative result of the instantaneous wind regime and the said first predetermined wind regime.
Preferably, also comprise second Detecting element and second control unit; Said second Detecting element is used for detecting respectively the instantaneous wind regime of each section of said aileron; And each instantaneous wind regime information is sent to said second control unit; Said second control unit receives each said instantaneous wind regime information; And detected instantaneous wind regime compared with the second predetermined wind regime respectively, the comparative result that said second control unit is scheduled to wind regime according to each instantaneous wind regime and said second is controlled the rotation amplitude of each section of said aileron respectively.
Preferably, be provided with flexible attachment components between adjacent two sections said ailerons.
Preferably, the arranged outside of said aileron has the flexible cover that fits with its external frame, and the shape of said flexible cover changes with the change of the overall profile of said aileron.
Preferably, said aileron is formed at the empennage portion of said blade.
Preferably, said aileron is a sheet shape, and is installed on the end of said blade body.
Preferably, said blade body and said aileron are hinged through hinging shaft, and said hinging shaft is along the thickness direction setting of said blade.
The present invention also provides a kind of wind power generating set, comprises tower tube, wind wheel and is installed on the blade on the said wind wheel, and said blade is aforesaid blade.
The blade of wind power generating set provided by the present invention; A kind of blade that is used for wind power generating set; Comprise blade body and the aileron that is arranged at the blade afterbody; Aileron and blade body are rotationally connected, and the direction of aileron suction surface to pressure side of blade in the effect lower edge of dynamical element, or rotate along the direction of pressure side to suction surface.This blade has the adjustable aileron of direction; When wind regime changed, aileron can be adjusted with the variation of wind regime, made the state of blade can adapt to current wind regime all the time; Improve the adaptive capacity of blade in different wind fields, enlarged the Applicable scope of blade; Simultaneously, in same wind field, can in time change the aerodynamic configuration parameter of blade according to the change of wind regime, blade all has the stronger wind energy power of catching under various wind regime, thereby has guaranteed the fan efficiency under the different wind regime.
In a kind of embodiment, blade provided by the present invention, its aileron can comprise multistage, each section aileron is along the width direction setting of blade; Like this, through the change in various degree of multistage aileron, realize the change of aileron shape, thereby realize the change of blade integral aerodynamic configuration, improved the diversity of aileron alteration of form, further enlarged the Applicable scope of blade.
In another kind of embodiment, the arranged outside of each section aileron provided by the present invention has the flexible cover that fits with its external frame, and the shape of flexible cover changes with the change of the overall profile of aileron.Because being the change in location of each section through it, the change of aileron shape forms; In order to guarantee the continuity of blade aeroperformance; The flexible cover of the flexible material of an integral body is installed at the outer surface of aileron; Each section aileron linked together, thereby guaranteed the continuity of the geometric shape of aerofoil profile when changing.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of blade provided by the present invention;
Structural representation when Fig. 2 is provided with flexible cover for blade shown in Figure 1;
Fig. 3 is the structural representation of the another kind of embodiment of blade provided by the present invention;
Fig. 4 is the structured flowchart of a kind of embodiment of control gear of aileron action provided by the present invention;
Fig. 5 is the structured flowchart of the another kind of embodiment of control gear of aileron action provided by the present invention.
Embodiment
Core of the present invention provides a kind of blade that is used for wind power generating set; This blade has the adjustable aileron of direction, and when wind regime changed, aileron can be adjusted thereupon; Make the state of blade can adapt to current wind regime all the time; Improve the adaptive capacity of blade in different wind fields, enlarged the Applicable scope of blade, thereby guaranteed the fan efficiency under the different wind regime.Another core of the present invention provides a kind of wind power generating set that comprises above-mentioned blade.
In order to make those skilled in the art person understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Blade provided by the invention is used for wind power generating set; This wind power generating set comprises the cabin, supports the tower tube in cabin and is installed on the blade on the cabin, and the number of blade can be a slice, two, also can be three or multi-disc more; Circumferentially be installed on the blade wheel hub equably; And can move with the wind, the number of blade should require to confirm with generating according to the working condition of reality, not do qualification at this.This blade further comprises blade body 1 and aileron 2; Aileron 2 is arranged at the afterbody of blade; Aileron 2 is rotationally connected with blade body 1, the direction of said aileron 2 suction surface 3 to pressure side 4 of said blade in the effect lower edge of dynamical element, the perhaps direction rotation of edge said pressure side 4 to said suction surface 3.
Blade body 1 is meant the blade-section of removing beyond the aileron 2.The empennage portion of blade is meant the part of blade away from its rotatingshaft one side, and also promptly near near the part the trailing edge, this part should be confirmed according to use condition in the length of blade axial direction, not do qualification at this.
Blade body 1 can be hinged through hinging shaft 8 with aileron 2, and hinging shaft 8 is along the thickness direction setting of blade.When aileron 2 needed to rotate, dynamical element drove aileron 2 around above-mentioned hinging shaft 8 transmission prespecified ranges, can realize the rotation of aileron 2 in suction surface 3 to pressure side 4 directions.
Apparently, blade body 1 also is not limited to hinged form with aileron 2, also can for example articulate etc. for other can realize the mode that above-mentioned direction is rotated in related domain.
Above-mentioned dynamical element can rotate as long as can realize driving aileron 2 for the conventional various power spares that use in related domain within the specific limits, for example can be motor or oil cylinder etc.
The material of aileron 2 can be identical with the case material of blade body 1; All can be conventional various metallic material or the composite material that uses in related domain; Blade is under the effect of high wind for a long time; And in the working environment, therefore, need the material of aileron 2 to have stronger wear resistance and decay resistance in the open air.
Blade provided by the present invention has the adjustable aileron of direction 2; When wind regime changed, aileron 2 can be adjusted with the variation of wind regime, made the state of blade can adapt to current wind regime all the time; Improve the adaptive capacity of blade in different wind fields, enlarged the Applicable scope of blade; Simultaneously, in same wind field, can in time change the aerodynamic configuration parameter of blade according to the change of wind regime, blade all has the stronger wind energy power of catching under various wind regime, thereby has guaranteed the fan efficiency under the different wind regime.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of embodiment of blade provided by the present invention; Structural representation when Fig. 2 is provided with flexible cover for blade shown in Figure 1.
In a kind of embodiment, the blade that is used for wind power generating set provided by the present invention, its aileron 2 is formed at the empennage portion of blade; Like this, only need blade is divided into interconnective blade body 1 and aileron 2 two-part, need not to be provided with separately part, thereby solved design and manufacture cost.
When aileron 2 was formed at the empennage portion of blade, above-mentioned blade body 1 was meant that blade removes the part beyond the empennage portion.
Above-mentioned aileron 2 can comprise multistage, and each section aileron 2 is along the width direction setting of said blade; Like this, through the change in various degree of multistage aileron 2, realize the change of aileron 2 shapes, thereby realize the change of blade integral aerodynamic configuration, improved the diversity of aileron 2 alterations of form, further enlarged the Applicable scope of blade.
When aileron 2 had multistage, being provided with between adjacent two sections of aileron 2 to have flexible attachment components, when moving respectively for adjacent two sections, realized the interlock between the multistage aileron 2 through this flexible connecting member, to guarantee the continuity of blade profile.
The flexible attachment components of aileron 2 between adjacent two sections can be separately fixed on two sections ailerons 2 through bolted mode, achieving a fixed connection through other fixed connection modes in related domain.The material of flexible attachment components can be the conventional various flexible materials that use in related domain, for example nylon material etc.
For the interlock between the multistage of realizing aileron 2; Also be not limited to the mode that flexible attachment components is set through above-mentioned between adjacent two sections ailerons 2; Also can realize through other modes; For example, the flexible cover 7 that fits with its external frame can be arranged in the arranged outside of aileron 2, the shape of flexible cover 7 changes with the change of the overall profile of said aileron 2.
Please refer to Fig. 3, Fig. 3 is the structural representation of the another kind of embodiment of blade provided by the present invention.
In another kind of embodiment; The blade that is used for wind power generating set provided by the present invention, its aileron 2 is a sheet shape, and is installed on the end of blade body 1; Like this; Through transforming original blade but on the basis of original blade, increase aileron 2, course of working is more convenient, and does not influence the structure of original blade.
When above-mentioned aileron 2 is the parts that are provided with separately, and when being installed on blade terminal, above-mentioned blade body 1 promptly refers to blade.
In this kind embodiment, also can aileron 2 be processed into the form of multistage, identical in its concrete Placement and beneficial effect and the above-mentioned first kind of embodiment repeated no more at this.
In above-mentioned any embodiment, tool can lead to auto-control mode realizes the control to aileron 2 motions.
Please refer to Fig. 4, Fig. 4 is the structured flowchart of a kind of embodiment of control gear of aileron action provided by the present invention.
In a kind of embodiment, this control gear comprises first Detecting element 51 and first control unit 52; First Detecting element 51 is used to detect the instantaneous wind regime of said aileron 2; And instantaneous wind regime information is sent to first control unit 52; In first control unit 52, store the first predetermined wind regime in advance; First control unit 52 receives instantaneous wind regime information, and detected instantaneous wind regime is compared with the first predetermined wind regime, and first control unit 52 is according to the action of the relation control dynamical element of comparative result and predetermined wind regime scope; Thereby the rotation amplitude of control aileron 2 makes the rotation amplitude of aileron 2 meet current wind regime.
This first Detecting element 51 can be for detecting the sensor of wind regime parameters such as wind speed, wind direction.
In the aileron that contains multistage 2,, also can control respectively the action of each section aileron 2 except the mode of above-mentioned interlock control.
Please refer to Fig. 5, Fig. 5 is the structured flowchart of the another kind of embodiment of control gear of aileron action provided by the present invention.
In another kind of embodiment, control comprises second Detecting element 61 and second control unit 62; Second Detecting element 61 is used for detecting respectively the instantaneous wind regime of each section of aileron 2; And each instantaneous wind regime information is sent to second control unit 62; Second control unit 62 receives each instantaneous wind regime information; And detected instantaneous wind regime compared with the second predetermined wind regime respectively, the comparative result that second control unit 62 is scheduled to wind regime according to each instantaneous wind regime and second is controlled the rotation amplitude of each section of aileron 2 respectively; Like this, control each section action of aileron 2 separately, improved the control accuracy of each section aileron 2.
Apparently, when each section of aileron 2 passed through control gear difference control action, each section should use separately independently dynamical element.
Above-mentioned second Detecting element 61 can be a plurality of independently sensors, also can be for detecting the integrated transducer of many group parameters simultaneously.
Above-mentioned two kinds of controlling mechanisms can be used simultaneously; Particularly, can adjust the state of each section aileron 2 respectively earlier through the effect of second Detecting element 61 and second control unit 62; Then adjust the state of whole aileron 2 through first Detecting element 51 and 52 interlocks of first control unit; So that obtain more accurate aileron 2 positions, further improve the wind energy power of catching of blade, improve the efficient of blade.
Except above-mentioned blade, the present invention also provides a kind of wind power generating set that comprises above-mentioned blade, and other each several part structures of this wind power generating set please refer to existing technology, repeat no more at this.
More than a kind of wind power generating set provided by the present invention and blade thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. blade that is used for wind power generating set; Comprise blade body (1); It is characterized in that, also comprise the aileron (2) that is arranged at said blade afterbody, said aileron (2) is rotationally connected with said blade body (1); The direction of suction surface (3) to the pressure side (4) of said aileron (2) said blade in the effect lower edge of dynamical element is rotated, and perhaps rotates along the direction of said pressure side (4) to said suction surface (3).
2. the blade that is used for wind power generating set according to claim 1 is characterized in that, said aileron (2) comprises multistage, and the said aileron of each section (2) is along the width direction setting of said blade.
3. the blade that is used for wind power generating set according to claim 2 is characterized in that, also comprises first Detecting element (51) and first control unit (52); Said first Detecting element (51) is used to detect the instantaneous wind regime of said aileron (2); And instantaneous wind regime information is sent to said first control unit (52); Said first control unit (52) receives said instantaneous wind regime information; And detected instantaneous wind regime and first is scheduled to wind regime compares, said first control unit (52) is controlled the rotation amplitude of said aileron (2) according to the comparative result of the instantaneous wind regime and the said first predetermined wind regime.
4. the blade that is used for wind power generating set according to claim 2 is characterized in that, also comprises second Detecting element (61) and second control unit (62); Said second Detecting element (61) is used for detecting respectively the instantaneous wind regime of each section of said aileron (2); And each instantaneous wind regime information is sent to said second control unit (62); Said second control unit (62) receives each said instantaneous wind regime information; And detected instantaneous wind regime compared with the second predetermined wind regime respectively, the comparative result that said second control unit (62) is scheduled to wind regime according to each instantaneous wind regime and said second is controlled the rotation amplitude of each section of said aileron (2) respectively.
5. the blade that is used for wind power generating set according to claim 2 is characterized in that, is provided with flexible attachment components between adjacent two sections said ailerons (2).
6. the blade that is used for wind power generating set according to claim 2; It is characterized in that; The arranged outside of said aileron (2) has the flexible cover (7) that fits with its external frame, and the shape of said flexible cover (7) changes with the change of the overall profile of said aileron (2).
7. according to each described blade that is used for wind power generating set of claim 1 to 6, it is characterized in that said aileron (2) is formed at the empennage portion of said blade.
8. according to each described blade that is used for wind power generating set of claim 1 to 6, it is characterized in that said aileron (2) is a sheet shape, and be installed on the end of said blade body (1).
9. according to each described blade that is used for wind power generating set of claim 1 to 6, it is characterized in that said blade body (1) is hinged through hinging shaft (8) with said aileron (2), said hinging shaft (8) is along the thickness direction setting of said blade.
10. a wind power generating set comprises tower tube, wind wheel and is installed on the blade on the said wind wheel, it is characterized in that, said blade is like each described blade of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103792761A CN102418666A (en) | 2011-11-24 | 2011-11-24 | Wind generating set and blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103792761A CN102418666A (en) | 2011-11-24 | 2011-11-24 | Wind generating set and blade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418666A true CN102418666A (en) | 2012-04-18 |
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ID=45943251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103792761A Pending CN102418666A (en) | 2011-11-24 | 2011-11-24 | Wind generating set and blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397981A (en) * | 2013-07-23 | 2013-11-20 | 钟明华 | Wind-driven accelerating wing |
| CN108194258A (en) * | 2017-12-27 | 2018-06-22 | 江苏金风科技有限公司 | For the denoising device of blade, blade, wind power generating set and noise-reduction method |
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| WO2004099608A1 (en) * | 2003-05-05 | 2004-11-18 | Lm Glasfiber A/S | Wind turbine blade with lift-regulating means |
| CN1780983A (en) * | 2003-03-31 | 2006-05-31 | 里索国家实验室 | Control of power, loads and/or stability of a horizontal axis wind turbine by use of variable blade geometry control |
| FR2863320B1 (en) * | 2003-12-09 | 2007-11-16 | Ocea Sa | AEROGENERATOR BLADE EQUIPPED WITH DEFLECTING MEANS, AND CORRESPONDING AEROGENERATOR |
| CN102257269A (en) * | 2008-12-02 | 2011-11-23 | 维斯塔斯风力系统集团公司 | Wind turbine control surface hinge |
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2011
- 2011-11-24 CN CN2011103792761A patent/CN102418666A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780983A (en) * | 2003-03-31 | 2006-05-31 | 里索国家实验室 | Control of power, loads and/or stability of a horizontal axis wind turbine by use of variable blade geometry control |
| WO2004099608A1 (en) * | 2003-05-05 | 2004-11-18 | Lm Glasfiber A/S | Wind turbine blade with lift-regulating means |
| FR2863320B1 (en) * | 2003-12-09 | 2007-11-16 | Ocea Sa | AEROGENERATOR BLADE EQUIPPED WITH DEFLECTING MEANS, AND CORRESPONDING AEROGENERATOR |
| CN102257269A (en) * | 2008-12-02 | 2011-11-23 | 维斯塔斯风力系统集团公司 | Wind turbine control surface hinge |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397981A (en) * | 2013-07-23 | 2013-11-20 | 钟明华 | Wind-driven accelerating wing |
| CN103397981B (en) * | 2013-07-23 | 2016-01-13 | 钟明华 | Wind energy power accelerates the wing |
| CN108194258A (en) * | 2017-12-27 | 2018-06-22 | 江苏金风科技有限公司 | For the denoising device of blade, blade, wind power generating set and noise-reduction method |
| CN108194258B (en) * | 2017-12-27 | 2020-01-31 | 江苏金风科技有限公司 | Noise reduction device for blade, wind generating set and noise reduction method |
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Application publication date: 20120418 |