CN107061153A - Vertical axis windmill based on plasma flow control - Google Patents
Vertical axis windmill based on plasma flow control Download PDFInfo
- Publication number
- CN107061153A CN107061153A CN201710239428.5A CN201710239428A CN107061153A CN 107061153 A CN107061153 A CN 107061153A CN 201710239428 A CN201710239428 A CN 201710239428A CN 107061153 A CN107061153 A CN 107061153A
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- China
- Prior art keywords
- vertical axis
- plasma
- blade
- flow control
- afterbody
- 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.)
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Links
- 230000000694 effects Effects 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical class CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005511 kinetic theory Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
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- 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
-
- 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
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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 present invention relates to a kind of vertical axis windmill based on plasma flow control, including blade, plasma, impeller shaft, base, impeller pivoted arm, the afterbody of the blade upper surface installs plasma additional, and vertical axis aerogenerator performance is improved using the aerodynamic effects produced by the plasma of blade afterbody.The thickness of the plasma is equal with the thickness of blade afterbody.The plasma position is trailing edge at 1/3 to 1/4 distance of trailing edge.The present invention's is applied to plasma flow control on vertical axis windmill, it not only ensure that vertical axis windmill is simple in construction, be easily installed the advantages of safeguarding, the deficiency of vertical axis windmill automatic start performance is improved again simultaneously, the power output of wind energy conversion system is improved.
Description
Technical field
The present invention relates to a kind of wind-driven generator, especially a kind of vertical axis aerogenerator belongs to vertical-shaft wind hair
Technical field of motors.
Background technology
As economic develops rapidly, the mankind rise year by year for the demand of the energy.And at present China mainly use according to
Old be traditional fossil energy, and fossil energy utilizes brought environmental problem also increasingly severe, while fossil energy
Constantly reducing.Therefore, the regenerative resource of cleaning then turns into the key that China develops in the future.
Wind energy is increasingly paid attention to as a kind of regenerative resource of cleaning by countries in the world, in the world many countries
Development and utilization to wind energy takes incentive mechanism, to slow down the problem of environmental pollution of this country.In China, wind energy is China's energy
A crucial ring in the strategy of source, the development of wind energy advantageously accounts for the problem of environmental pollution of China.The wind energy resources of China is very
It is abundant, the abundant wind energy resources all existed in provinces such as the Inner Mongol, Gansu and three provinces in the northeast of China, its wind energy that can be developed
Reserves are about 200,000,000 KW, and these regional landform are flat, traffic convenience, are conducive to large-scale development wind power plant.China is also early in upper
Begin in individual century use wind energy, the Wind Power Generation Industry growth momentum of China is also especially powerful in recent years, installed capacity exceedes U.S.
State.Wind-driven generator used at present is mainly divided into two kinds of horizontal axis wind-driven generator and vertical axis aerogenerator.In wind
In electric field, wind energy conversion system is then the important device for converting wind energy into electric energy.Wind energy conversion system is broadly divided into trunnion axis and vertical-shaft wind
Machine, compared to horizontal axis wind-driven generator, vertical axis aerogenerator is not required direction of flow, it is not necessary to any water conservancy diversion
Device；It is simple in construction, be easily installed；Small-size vertical axis wind turbine applies also for many building areas, can effectively utilize
Architectural wind energy, reduces the consumption of primary energy；Meanwhile, its maximum advantage is the cost phase with horizontal axis wind-driven generator
Than the cost of vertical axis aerogenerator is generally relatively low.However, as known to the knowledge of hydrodynamics boundary layer, gas flows through solid
Boundary layer separation can all occur for surface, be so unfavorable for the interaction of gas and the surface of solids, cause vertical axis wind power generation
The automatic start hydraulic performance decline of machine, while its power output is also decreased.
Shortcoming for appealing vertical axis aerogenerator, the present inventor is inspired by hydrodynamics boundary layer knowledge,
Based on being improved wound to vertical axis aerogenerator airfoil fan to the knowledge that how to improve boundary layer separation in hydrodynamics
Newly, install plasma additional in its blade upper surface afterbody to weaken its afterbody boundary layer separation effect.Blade and plasma are common
Same-action can effectively improve the automatic start performance and power output of vertical axis aerogenerator.
The content of the invention
There is provided a kind of vertical shaft wind based on plasma flow control in order to overcome above-mentioned existing shortcoming by the present invention
Power machine, starts with from vane of vertical shaft wind-driven generator structure, it is considered to which Modern air kinetic theory and hydrodynamics boundary layer are known
Know, plasma is installed additional using the afterbody in blade upper surface, imitated using the aerodynamics produced by the plasma of afterbody
Vertical axis aerogenerator performance should be improved.
The technical scheme is that：A kind of vertical axis windmill based on plasma flow control, including blade, leaf
Rotating shaft, base, impeller pivoted arm are taken turns, the afterbody of the blade upper surface installs plasma additional, utilizes the plasma of blade afterbody
Produced aerodynamic effects improve vertical axis aerogenerator performance.
The thickness of the plasma is equal with the thickness of blade afterbody.
The plasma position is trailing edge at 1/4 to 1/3 distance of trailing edge.
The blade connects impeller shaft by impeller pivoted arm, and impeller shaft is arranged on base.
The beneficial effects of the invention are as follows：
The present invention's is applied to plasma flow control on vertical axis windmill, not only ensure that vertical axis windmill structure
Simply, the advantages of safeguarding is easily installed, while improving the deficiency of vertical axis windmill automatic start performance again, wind-force is improved
The power output of machine.
Brief description of the drawings
Fig. 1 is the vertical axis windmill structural upright schematic diagram based on plasma flow control of the invention；
Fig. 2 is the vertical axis windmill structure schematic top plan view based on plasma flow control of the invention.
Embodiment
Blade after being improved below using NACA0015 aerofoil profiles as prototype（The thickness of plasma and the thickness of blade afterbody
Equal, the position of plasma is trailing edge at 1/4 to 1/3 distance of trailing edge）Exemplified by with reference to accompanying drawing to the present invention
It is described in more detail：
Such as Fig. 1, shown in 2, the vertical axis windmill of the invention based on plasma flow control, including blade 1, plasma
2nd, impeller shaft 3, base 4, impeller pivoted arm 5.The afterbody of the upper surface of blade 1 installs plasma 2 additional, using the afterbody of blade 1 etc.
Aerodynamic effects produced by gas ions 2 improve vertical axis aerogenerator performance.Blade 1 is connected by impeller pivoted arm 5
Impeller shaft 3 is connect, impeller shaft 3 is arranged on base 4.
The vertical axis aerogenerator based on plasma flow control of the present invention, the blade of its aerofoil profile is by tradition
NACA series aerofoil sections, which are improved, to be obtained, and installing plasma additional in afterbody is reassembled into new-type aerofoil profile, and the position of plasma can be with
Change, suitable position is conducive to improving the flow behavior of blade surface, so that wind energy conversion system power output is significantly increased
Greatly, position is excessive or too small, and its static torque can reduce, also poorer with respect to automatic start performance.But, compared to biography
System aerofoil profile vertical axis aerogenerator, automatic start performance still has larger lifting.
When wind is to this pneumatic equipment blades, because plasma is added at blade upper surface rear so that the surface of blade
Gas have a very large change when flowing to afterbody along surface, the gas boundary layer of blade surface is not sent out in blade afterbody
Raw boundary layer separation, can so increase the static torque of wind energy conversion system, so as to largely lift the power of wind energy conversion system
Output；At the same time also the function that automatic start accelerates is brought to wind energy conversion system.
Claims (4)
1. a kind of vertical axis windmill based on plasma flow control, including blade (1), impeller shaft (3), base (4),
Impeller pivoted arm (5), it is characterised in that：The afterbody of blade (1) upper surface installs plasma (2) additional, utilizes blade afterbody
Aerodynamic effects produced by plasma (2) improve vertical axis aerogenerator performance.
2. the vertical axis windmill according to claim 1 based on plasma flow control, it is characterised in that：It is described etc.
The thickness of gas ions (2) is equal with the thickness of blade (1) afterbody.
3. the vertical axis windmill according to claim 1 based on plasma flow control, it is characterised in that：It is described etc.
Gas ions (2) position is trailing edge at 1/4 to 1/3 distance of trailing edge.
4. according to any described vertical axis windmills based on plasma flow control of claim 1-3, it is characterised in that：
The blade (1) connects impeller shaft (3) by impeller pivoted arm (5), and impeller shaft (3) is arranged on base (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239428.5A CN107061153A (en) | 2017-04-13 | 2017-04-13 | Vertical axis windmill based on plasma flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239428.5A CN107061153A (en) | 2017-04-13 | 2017-04-13 | Vertical axis windmill based on plasma flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061153A true CN107061153A (en) | 2017-08-18 |
Family
ID=59599472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710239428.5A Pending CN107061153A (en) | 2017-04-13 | 2017-04-13 | Vertical axis windmill based on plasma flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061153A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100104436A1 (en) * | 2008-10-27 | 2010-04-29 | General Electric Company | Active curcilation control of aerodynamic structures |
| CN102032103A (en) * | 2011-01-17 | 2011-04-27 | 沈阳航空航天大学 | Method for enhancing wind energy utilization of vertical axis wind turbine by using plasma technology |
| CN102913399A (en) * | 2012-11-06 | 2013-02-06 | 中国科学院工程热物理研究所 | Plasma flow control method for reducing the wake loss of a wind turbine |
-
2017
- 2017-04-13 CN CN201710239428.5A patent/CN107061153A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100104436A1 (en) * | 2008-10-27 | 2010-04-29 | General Electric Company | Active curcilation control of aerodynamic structures |
| CN102032103A (en) * | 2011-01-17 | 2011-04-27 | 沈阳航空航天大学 | Method for enhancing wind energy utilization of vertical axis wind turbine by using plasma technology |
| CN102913399A (en) * | 2012-11-06 | 2013-02-06 | 中国科学院工程热物理研究所 | Plasma flow control method for reducing the wake loss of a wind turbine |
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| Date | Code | Title | Description |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |