KR20140011589A - Apparatus for wind power generation with vertical axis - Google Patents

Apparatus for wind power generation with vertical axis Download PDF

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Publication number
KR20140011589A
KR20140011589A KR1020120077968A KR20120077968A KR20140011589A KR 20140011589 A KR20140011589 A KR 20140011589A KR 1020120077968 A KR1020120077968 A KR 1020120077968A KR 20120077968 A KR20120077968 A KR 20120077968A KR 20140011589 A KR20140011589 A KR 20140011589A
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KR
South Korea
Prior art keywords
main
support arm
blade
main blade
main support
Prior art date
Application number
KR1020120077968A
Other languages
Korean (ko)
Other versions
KR101391865B1 (en
Inventor
장호규
김도현
이철호
이광일
허주호
정태석
Original Assignee
에스티엑스조선해양 주식회사
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Priority to KR1020120077968A priority Critical patent/KR101391865B1/en
Publication of KR20140011589A publication Critical patent/KR20140011589A/en
Application granted granted Critical
Publication of KR101391865B1 publication Critical patent/KR101391865B1/en

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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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • 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
    • 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
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • 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

Abstract

The present invention relates to a wind power generation apparatus with a vertical axis, which comprises a base unit; a rotary shaft unit installed on the base unit; a rotary driver including multiple main blades arranged at constant intervals on the circumference to put the rotary shaft in the center, and main support arms coupled to cross between the rotary shaft unit and the main blades; and a driving unit installed in the inner side of the main blades and the main support arms and delivering the rotary power by the generated wind power to the rotary driver.

Description

[0001] APPARATUS FOR WIND POWER GENERATION WITH VERTICAL AXIS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine generator, and more particularly, to a vertical turbine wind turbine generator which can be manufactured at low cost and can be easily installed in a small space.

In recent years, due to the mass consumption of fossil fuels, the environment on the earth has deteriorated, environmental degradation has progressed, and depletion of fossil fuels has become a big international problem.

Therefore, effective use and discovery of natural energy and renewable energy are urgently needed to protect the environment of the earth and prevent international disputes.

As part of these efforts, wind power generation systems are attracting attention.

The wind turbine is being developed on a large scale not only on land but also on the sea. Especially, the target sea area is being developed in floating form rather than stationary type mainly in Northern Europe and the United States as it moves from the coast to the large water depth region.

In parallel with this, various types of wind power generation devices have been researched and developed due to the excessive production cost of the horizontal axis wind power generation, maintenance cost, and stability problem due to the rise of the center of gravity.

In particular, the vertical axis wind power generator has the following advantages.

1. No need to install high towers, which reduces production cost and repair maintenance cost.

2. The blade is installed near the base structure and is relatively stable compared to the horizontal axis wind turbine.

3. It has less cut-in wind speed and yaw control than horizontal axis wind power generator.

However, the vertical axis wind turbine generator having such advantages has a problem that the efficiency is still lower than that of the horizontal axis wind turbine generator.

In particular, a gyromill type is a structure in which a wing plate is attached in a tangential direction of a rotating track, and is rotated by lifting force generated by the wind flow. The wind direction is effective only in the horizontal direction, self-starting capability, there is a problem in that a starting torque must be applied using a separate auxiliary power source.

Korean Patent No. 0490683 (2005.5.11)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an automatic start-up device capable of performing initial start-up through a self-

Another object of the present invention is to enable high efficiency wind power generation by actively performing pitch angle adjustment while the main blade of the rotation driving unit rotates in the horizontal direction.

According to an aspect of the present invention, there is provided a vertical axis wind turbine generator comprising a base, a rotary shaft installed upright on the base, and a plurality of main motors arranged at regular intervals on the circumference of the rotary shaft, And a main support arm which is coupled across the main shaft and the rotary shaft portion, and a main support arm which is coupled across the main shaft and the rotary shaft portion, And the eastern part.

Wherein the self-moving portion includes a plurality of auxiliary blades located on the inner side of the main support arm with the rotation axis portion as a center and spaced equidistantly on the circumference of the rotation axis portion with the center of the rotation axis portion, And a support arm.

The rotary shaft portion is constituted by a first shaft to which the main support arm of the rotary drive portion is connected and a second shaft to which the auxiliary support arm of the self-drive portion is connected, and the first shaft and the second shaft are gear- .

And the auxiliary blade of the self-moving portion has a relatively larger area than the main blade.

And the rotation driving unit and the self-moving unit are fixed to the rotary shaft via a bearing.

The rotation driving unit may further include a pitch angle adjusting unit for adjusting a pitch angle of the main blade.

Wherein the pitch angle adjusting section comprises a fastening member to be fastened to the main blade and the main support arm and a fastening hole of the main blade having an inner diameter larger than an outer diameter of the fastening member to which the fastening member is fastened.

The end portion of the main blade is fastened and fixed in a state of being inserted into a groove formed in the main support arm, and the width of the groove is larger than the width of the end portion of the main blade.

The end portion of the main blade is fastened and fixed to the outer side of the main support arm and the end portion of the main blade is fastened and fixed at a predetermined distance from the outer side surface of the main support arm.

And the main blade is provided with a damping portion for providing an elastic force to the main support arm.

The damping unit may include an elastic member elastically supported on the main support arm, and a connection member connected between the main blade and the elastic member.

According to the vertical axis wind power generator of the present invention having the above-described configuration, since it is possible to start the power generation without additional power supply, the energy consumption can be reduced and the efficiency can be improved.

In addition, even if the direction and speed of the incoming wind change, the adjustment of the pitch angle of the blades is actively performed, thereby generating high-efficiency energy.

1 is a perspective view showing a vertical axis wind power generator according to the present invention.
2 is a side cross-sectional view showing a rotary shaft portion of a vertical axis wind power generator according to the present invention.
3 is a cross-sectional view showing a state before coupling members and fastening holes of a pitch angle adjusting unit of a vertical axis wind power generator according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a state after the coupling member and the coupling hole of the pitch angle adjustment unit of the vertical axis wind power generator according to the embodiment of the present invention are coupled.
FIG. 5 is a cross-sectional view illustrating a state in which a coupling member and a fastening hole of a pitch angle adjusting unit of a vertical axis wind power generator according to another embodiment of the present invention are coupled.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG.

1, the vertical axis wind power generator according to the present invention includes a rotary shaft portion 100 disposed vertically so as to be installed at a base portion B to provide rotational power and to be substantially perpendicular to a wind direction .

A plurality of main blades 210 are disposed on the circumference of the rotary shaft 100 at equal intervals on the circumference of the main shaft 210. The main blades 210 are coupled to the main blade 210, And a rotation driving part 200 including a rotation driving part 220 is provided.

The vertical axis wind power generator according to the present invention is installed in the main support arm 220 around the rotary shaft part 100 and is disposed at regular intervals on the circumference of the rotary shaft part 100 That is, an initial start power, generated by a plurality of auxiliary blades 310 and an auxiliary support arm 320 connected to the rotary shaft portion 100 and the auxiliary blade 310, And a self-starting unit 300 for transmitting the self-starting signal to the control unit 300.

2, the rotary shaft portion 100 includes a first shaft 110 to which the main support arm 220 of the rotary drive portion 200 is connected, and a second shaft 110 to which the main support arm 220 of the rotary drive portion 200 is connected. And a second shaft 120 to which the support arm 320 is connected. The first and second shafts 110 and 120 are interlocked with each other in a gear engagement manner.

Accordingly, when the first shaft 110 rotates or the second shaft 120 rotates, the corresponding second shaft 120 or the first shaft 110 can rotate together.

In the embodiment of the present invention, the number of the gears 131 coupled to the first shaft 110 and the second shaft 120 is limited to a single gear, The number, the number of teeth, the gear ratio, and the pitch of the gears 131 so that the rotational direction and the speed of the first shaft 110 and the second shaft 120 can be changed.

The self-driven unit 300 configured as described above transmits the rotational force generated through the auxiliary blade 310 to the rotational driving unit 200, and assists the rotational driving unit 200 to operate smoothly .

At this time, it is preferable that the auxiliary blade 310 has a relatively larger area than the main blade 210 so that it can easily cope with wind power.

That is, the auxiliary blade 310 is shorter than the main blade 210 to increase the area of the auxiliary blade 310 relative to the main blade 210 because the self-driving unit 300 is located inside the rotation driving unit 200 .

In addition, it is preferable that the auxiliary blade 310 is made of a lightweight material as compared to the main blade 210 so that the auxiliary blade 310 can easily respond to the breeze.

Bearings 132 for supporting the first and second shafts 110 and 120 of the rotary shaft portion 100 and receiving the loads acting on the first and second shafts 110 and 120 to smoothly rotate the shafts, 1 and the second shaft 110, 120, respectively.

The gears 131 and the bearings 132 are not exposed to the outside through the gear box 130.

In addition, the main blade 210 preferably has a cross-sectional shape formed by a symmetrical airfoil that is mainly used for the wings of an airplane, and is affected by the centrifugal force generated while rotating, But light weight is desirable in terms of structural safety and operational efficiency.

It is preferable that the main blade 210 is disposed so as to form a right angle with the direction of the wind which is substantially flowed so as to generate a lift force from the incoming wind to obtain a maximum rotational force.

In addition, the number of the main blades 210 may vary depending on power consumption and usage.

One end of the main support arm 220 is connected to the first shaft 110 of the rotary shaft portion 100 and the other end of the main support arm 220 is rotatably connected to the main blade 210.

3, the coupling structure of the main blade 210 and the main support arm 220 is formed by connecting the coupling member 600 including the pin 610 and the pin coupling portion 620 to the main blade 210 and the main support arm 220 so as to be coincident with each other.

3 and 4, the end portion of the main blade 210 is fastened or fixed in a state of being inserted into a groove 222 formed in the main support arm 220, As shown in Fig.

The pitch angle adjuster 400 is provided at the coupling structure of the main blade 210 and the main support arm 220 to adjust the pitch angle of the main blade 210 with respect to the main support arm 220. do.

The pitch angle adjuster 400 has a structure in which the main blade 210 is rotatable in a horizontal direction within a predetermined rotation range in response to a change in wind, Bond structure.

Specifically, the pitch angle adjusting unit 400 includes a coupling member 600 coupled to the main blade 210 and the main support arm 220, and a coupling member 600 coupled to the coupling member 600, And a fastening hole 211 of the main blade 210 having an inner diameter larger than the outer diameter.

That is, by forming the gap G between the fastening member 600 and the fastening hole 211 of the main blade 210, the main blade 210 can move horizontally As shown in Fig.

4, in order to adjust the pitch angle of the main blade 210, the width of the groove 222 formed in the main support arm 220 is greater than the width of the end portion of the main blade 210 Or the end portion of the main blade 210 may be fastened and fixed at a predetermined distance from the outer surface of the main support arm 220 as shown in FIG.

The pitch angle of the main blade 210 is adjusted while the main blade 210 is moved by the gap G between the coupling member 600 and the fastening holes 211 and 221 in accordance with the change of the wind.

As a result, when the wind fluctuation occurs, the rotational speed of the rotary drive unit 200 can be secured through the pitch angle adjustment of the main blade 210.

At this time, the main blade 210 is provided with a damping portion 500 for providing an elastic force to the main support arm 220 at an intersection between the main blade 210 and the main support arm 220, Is installed.

The damping part 500 is for preventing breakage caused by an excessive change or distortion of the main blade 210 capable of adjusting the pitch angle. The elastic member 410 such as a spring is elastically supported on the main support arm 220 And the elastic member 510 is connected to the main blade 210 via a connection member 520. [

On the other hand, in the case of the power generation unit, it is preferable that the power generation unit is composed of a general generator, and that the power generation unit generates electricity by receiving the rotational force provided from the rotation driving unit 200. In consideration of structural stability, desirable.

In addition, in the present invention, the configuration and the connection relationship of the power generator for converting wind power provided from the rotary drive unit 200 into electric energy are generally known technologies, and a detailed description thereof will be omitted.

Accordingly, the vertical axis wind turbine generator according to the present invention performs initial startup without additional power supply.

Since the pitch angle of the main blade 210 can be adjusted with respect to the main support arm 220, when the wind fluctuates, the main blade 210 rotates in the horizontal direction to actively adjust the pitch angle, The wind power generation of the wind turbine can be promoted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Various modifications to the embodiments are also within the scope of the claims of the present invention.

B: Base portion
100:
200:
300:
400: Pitch angle adjuster
500: damping portion
600: fastening member

Claims (11)

A base portion,
A rotating shaft portion installed upright on the base portion,
A rotation driving part including a plurality of main blades disposed at regular intervals on a circumference of the rotary shaft and a main support arm transversely coupled between the rotary shaft and the main blade,
And a self-driving unit configured to transmit the rotational force generated by the wind generated in the main blade and the main support arm to the rotary driving unit.
The method of claim 1,
The self-
A plurality of auxiliary blades located on the inner side of the main support arm about the rotary shaft portion and disposed at equal intervals on a circumference of the rotary shaft portion with a center thereof,
And an auxiliary support arm connected to the rotary shaft portion and the auxiliary blade.
3. The method of claim 2,
The rotating shaft portion,
A first shaft to which a main support arm of the rotation driving unit is connected,
And a second shaft to which the auxiliary support arm of the self-driven portion is connected,
And the first shaft and the second shaft are gear-engaged to interlock with each other.
The method of claim 1,
Wherein the auxiliary blade of the autonomous portion has a relatively larger area than that of the main blade.
The method of claim 1,
Wherein the rotary drive unit and the autonomous unit are fixed to the rotary shaft via a bearing.
The method of claim 1,
The rotary drive unit further comprises a pitch angle adjustment unit for adjusting the pitch angle of the main blades.
The method according to claim 6,
The pitch angle adjustment unit,
A fastening member fastened to the main blade and the main support arm;
Vertical fasteners, characterized in that the fastening member is made of a fastening hole of the main blade having an inner diameter larger than the outer diameter of the fastening member.
The method of claim 7, wherein
The end portion of the main blade is fastened and fixed in a state of being inserted into a groove formed in the main support arm,
And the width of the groove is larger than the width of the end portion of the main blade.
The method of claim 7, wherein
And an end portion of the main blade is fastened and fixed to an outer side of the main support arm,
And the end portion of the main blade is fastened and fixed at a predetermined distance from the outer side surface of the main support arm.
10. The method of claim 9,
Wherein the main blade is provided with a damping portion for providing an elastic force to the main support arm.
The method of claim 10,
The damping unit,
An elastic member elastically supported on the main support arm,
And a connecting member connected between the main blade and the elastic member.
KR1020120077968A 2012-07-17 2012-07-17 Apparatus for wind power generation with vertical axis KR101391865B1 (en)

Priority Applications (1)

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KR1020120077968A KR101391865B1 (en) 2012-07-17 2012-07-17 Apparatus for wind power generation with vertical axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120077968A KR101391865B1 (en) 2012-07-17 2012-07-17 Apparatus for wind power generation with vertical axis

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KR20140011589A true KR20140011589A (en) 2014-01-29
KR101391865B1 KR101391865B1 (en) 2014-05-07

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005090332A (en) * 2003-09-17 2005-04-07 Satsuki Seisakusho:Kk Darrieus wind turbine
JP2007040239A (en) * 2005-08-04 2007-02-15 Kanzaki Kokyukoki Mfg Co Ltd Wind power device
KR200459427Y1 (en) 2010-12-16 2012-03-28 (주)케이비중공업 verticality wind generator with sub-blade

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