JP2001073926A - Solar battery integral wind power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high power generation efficiency with the smallest arranging space by arranging a power generating part for carrying out power generation by turning effort of windmill blades having a plurality of impellers, and engaging a solar battery part with an opening part formed on each impeller of the windmill blades. SOLUTION: In a wind power generator wherein vertical three-stage windmill blades 4 are disposed on a vertical rotary shaft 3 which is rotatably supported around a vertical axis on a base, each windmill blade 4 is formed by arranging, for example, two Savonius type blade cross sectional shaped impellers 5. A rectangular shaped opening part 6 is arranged on a flat plate shaped part 5a of each impeller 5, and a solar battery part 7 is fitted thereto. Electric energy generated at a power generating part such as a generator by rotating the windmill blades 4 with wind force is converted into prescribed voltage by a converter, and current is supplied to a load and the like. On the other hand, electric energy converted from solar energy by the solar battery part 7 is also converted into prescribed voltage, and current is supplied. Excess power is accumulated in storage battery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell integrated wind power generator.

[0002]

2. Description of the Related Art Conventionally, as a power generation form using clean energy, there are wind power generation and solar power generation. However, since wind, sunlight, and the like greatly vary depending on weather, power generation efficiency is easily affected by the weather. For this reason, in recent years, a wind power generator has been provided with a solar cell integrated with the wind power generator to increase the power generation efficiency.

Conventionally, as such a solar cell integrated wind power generation apparatus, a solar cell is installed separately from a windmill, or a solar cell integrated with a windmill as disclosed in Japanese Patent Application Laid-Open No. Hei 6-167269. There is one that is integrally attached to the wind receiving surface.

[0004]

However, in the conventional solar cell integrated wind power generator as described above,
If the solar cells were installed separately from the windmill, a larger space would be needed. On the other hand, if a solar cell or the like is attached to the windmill, the mass of the windmill increases, and the flow of wind on the wind receiving surface of the windmill is disturbed, so that there is a problem that power generation efficiency is affected. SUMMARY OF THE INVENTION The present invention has been made in consideration of the above points, and has as its object to provide a solar cell integrated wind power generator capable of obtaining high power generation efficiency with a minimum installation space.

[0005]

The invention according to claim 1 is
A wind turbine blade having a plurality of blades, a power generation unit that generates power by the rotational force of the wind turbine blade, a solar cell unit disposed on each of the blades, and an electric energy converted by the solar cell. A power storage unit for storing power, and a control unit for controlling electric energy supplied from the power generation unit and the power storage unit, and the solar cell unit is provided to be fitted in an opening formed in each of the blades. It is characterized by being.

By providing the solar cell unit integrally with the wind turbine blade, the installation space can be minimized. Then, an opening is formed in the blade, and the solar cell portion is fitted into the opening, whereby an increase in the weight of each blade can be suppressed.

According to a second aspect of the present invention, the solar cell section includes a panel closing the opening on one side of the blade, a solar cell module fixed to the surface of the panel, and another side of the blade. And a tempered glass which covers the solar cell module while closing the opening.

According to a third aspect of the present invention, a step is formed on an outer peripheral portion of the opening on the wind receiving side of each of the blade surfaces, and the panel is locked to the step. Features.

By attaching the solar cell module to the panel as described above or by providing the panel on the step formed on the wind receiving surface side of the blade surface, the solar cell unit can be securely fixed to the blade. be able to.

According to a fourth aspect of the present invention, when the blade surface is a curved surface, the solar cell portion has a strip shape.

Thus, a solar cell can be provided even if the blade surface is a curved surface.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a solar cell integrated wind power generator according to the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

As shown in FIG. 1, a wind power generator (solar cell integrated wind power generator) 1 has a vertical rotating shaft 3 supported on a base 2 so as to be rotatable around a vertical axis. It mainly has a configuration in which two-stage wind turbine blades 4 are integrally provided.

The upper and lower two-stage wind turbine blades 4 are, for example,
The blades 5 are arranged such that the positions of the blades 5 are shifted by 90 degrees between the upper wind turbine blades 4 and the lower wind turbine blades 4.

As shown in FIG. 2, each blade 5 is made of, for example, aluminum and has a so-called Savonius-type blade cross-sectional shape. The vertical rotation shaft 3 has a flat plate-like portion 5a, and the blade tip has a substantially semicircular shape. Curved portion 5b.

For example, a substantially rectangular opening 6 is formed in the flat plate portion 5a of each blade 5, and the opening 6 is provided with a solar cell unit 7 fitted therein. . The solar cell unit 7 includes a panel 8 located on one surface of the blade 5, a solar cell module 9, and a tempered glass 10 provided on the other surface of the blade 5 and covering the surface of the solar cell module 9. ing. Here, a step portion 11 is formed on the outer peripheral portion of the opening portion 6 on the wind receiving surface 5W side of the blade 5, and the panel 8 is fitted into the step portion 11, and various kinds of screws and bolts (not shown) are provided. It is fixed to the blade 5 by joining means. A plurality of the solar cell modules 9 are arranged on the surface of the panel 8 and fixed by fixing means (not shown). The panel 8 and the tempered glass 10 are provided so as to be substantially flush with the surface of the blade 5.

As shown in FIG. 1, above and below each wind turbine blade 4, a circular partition plate 13 having a diameter substantially equal to the diameter of the blades 5, 5 is provided.
Is provided. Reference numeral 14 in the figure denotes a wind turbine blade 4,
4 is a protective fence arranged on the outer peripheral side. Here, the protective fence 14 includes a plurality of columns 15 and annular members 16 fixed to the columns 15 at predetermined intervals in the vertical direction. Each of the annular members 16 is connected to the wind turbine blade 4. It is formed of a material with a thin plate-like cross section vertically so as not to hinder the air flow.

In such a wind power generator 1,
The system is configured to generate power by a system as shown in FIG. That is, electric energy generated by a power generation unit such as a generator (not shown) by the wind turbine blades 4 rotating by wind power is converted into a predetermined voltage by the converter 21. On the other hand, the electric energy converted from the solar energy by the solar cell unit 7 is converted into a predetermined voltage by the converter 22. The electric energy via the converters 21 and 22 is transferred to the load 24 via the inverter 23.
And the surplus energy is stored in the storage battery 25. When the electric energy supplied from the wind turbine blades 4 and the solar cell unit 7 is less than the required energy on the load 24 side, the electric energy stored in the storage battery 25 is transferred to the load 24 via the inverter 23. The supply is controlled by a control unit (not shown).

In the wind power generator 1 described above, the solar cell unit 7 is provided integrally with the wind turbine blade 4, so that the installation space can be minimized. An opening 6 is formed in the blade 5 of the wind turbine blade 4, and the solar cell section 7 is formed in the opening 6.
The weight increase of each blade 5 can be suppressed, and the protrusion on the surface of the blade 5 is eliminated so that the wind receiving surface 5
The turbulence of the wind in W can be prevented, and a decrease in power generation efficiency can be prevented.

Moreover, the solar cell unit 7 can reinforce the solar cell module 9 by attaching the solar cell module 9 to the panel 8. Panel 8
Has a structure fixed to the step 11 formed on the wind receiving surface 5W side of the blade 5, whereby the fixing strength of the solar cell module 9 to the blade 5 can be increased.

In the above-described embodiment, the solar cell unit 7 is arranged on the flat plate-shaped portion 5a of the blade 5.
However, the present invention is not limited to this, and may be provided in, for example, the curved portion 5b. In this case, the solar cell unit 8 is formed in a strip shape, one or a plurality of openings are formed in the bending direction of the curved portion 5b, and the solar cell unit 8 is arranged here, so that the solar cell unit 8 has a curved surface. The solar cell module 9 can be installed.

In addition, although the cross section of the blade 5 is a Savonius type, the blade 5 may have another shape.
, The number of wind turbine blades 4, the electrical system configuration for power generation in the wind turbine generator 1, and the like are not intended to be limited to those described above.

Other than this, any configuration may be adopted as long as it does not depart from the gist of the present invention, and it is needless to say that the above-mentioned configurations may be appropriately selectively combined. No.

[0024]

As described above, according to the solar cell integrated wind power generator according to the first aspect, the installation space can be minimized by integrally providing the solar cell unit with the wind turbine blade. . And an opening is formed in the blade,
By fitting the solar cell portion into this opening, an increase in the weight of each blade can be suppressed, and a decrease in power generation efficiency can be prevented.

According to the solar cell integrated wind power generator according to the second and third aspects, the solar cell module is reinforced by attaching the solar cell module to the panel, and the panel is attached to the wind receiving side of the blade surface. By providing the solar cell unit on the blade, it is possible to secure the solar cell unit to the blade.

According to the solar cell integrated wind power generator according to the fourth aspect, the solar cell portion is formed in a strip shape, so that the blade surface is curved even if the blade surface is a curved surface. With such a structure, a solar cell can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a solar cell integrated wind power generator according to the present invention.

FIG. 2 is a plan sectional view showing a wind turbine blade provided in the device.

FIG. 3 is a block diagram showing a system configuration of the apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 wind power generator (solar cell integrated wind power generator) 4 windmill blade 5 blade 6 opening 7 solar cell unit 8 panel 9 solar cell module 10 tempered glass 11 stepped portion 25 storage battery (power storage unit)

Continuing on the front page (72) Inventor Chuichi Aoki 3-4-1 Shibaura, Minato-ku, Tokyo Inside NTT Facilities Inc. (72) Inventor Seiichi Muroyama 3-4-1 Shibaura, Minato-ku, Tokyo Stock F-term in NTT Facilities (reference) 3H078 AA26 AA34 BB11 CC03 CC72 5H590 AA02 AA03 CA14 CA29 CA30 CD03 CE05 EB04

Claims (4)

[Claims] 1. A wind turbine blade having a plurality of blades, a power generation unit that generates power by the rotational force of the wind turbine blade, a solar cell unit disposed on each of the blades, and a conversion by the solar cell A power storage unit that stores the generated electric energy, and a control unit that controls the electric energy supplied from the power generation unit and the power storage unit. The solar cell unit includes an opening formed in each of the blades. A solar cell integrated wind power generation device, wherein the wind power generation device is provided so as to be fitted into a solar cell. 2. The panel for closing the opening on one side of the blade, the solar cell module fixed to the surface of the panel, and the opening on the other side of the blade. The solar cell integrated wind power generator according to claim 1, further comprising: a tempered glass covering the solar cell module. 3. A step is formed on an outer peripheral portion of the opening on a wind receiving surface side of each of the blade surfaces, and the panel is locked to the step. The solar cell integrated wind power generator according to the above. 4. The solar cell integrated wind power generator according to claim 1, wherein the solar cell section has a strip shape when the blade surface is a curved surface. .