JP2561856Y2 - Wind power generation system - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power generation system installed on a power transmission tower.

[0002]

2. Description of the Related Art Conventional wind power generation systems are shown in FIGS.
As shown in (1), it is general that a horizontal axis windmill 32 is mounted on a dedicated steel tower 31 and a generator 33 is connected to a rotating shaft of the windmill 32 to generate power. FIG. 8 shows a case where the generated power is transmitted to the power network via the power backflow prevention device 34 and is directly used. FIG. 9 shows that the storage battery 37 is supplied via a voltage regulator 36 in addition to supplying power to the load 35.
To send and store surplus power in preparation for no-wind periods,
The case where the converter 38 connected to the storage battery 37 converts DC from the storage battery 37 into AC and sends it to another load is shown. Only
However, these wind power systems
A dedicated tower must be built, and there is a lot of land
Construction costs are often high. Therefore, the applicant filed a patent application
JP-A-57-95967 (JP-A-58-215929)
Installed a vertical axis windmill inside the tower,
Wind power that uses the electric power for aviation obstacle lights on the tower
An electric system was proposed. This wind power system has low cost
It can be installed at a location where there is no commercial power supply, such as in mountainous areas.
It is an appropriate system to cover the power of aviation obstacle lights.
You.

[0003]

The present invention is to provide a way for these power transmission
The wind turbine installed on the tower generated extra power
If you try to transmit power to a remote location, a new power transmission facility
Will be needed. To this end, some existing transmission towers will be used
Although it may be possible, a new transmission line will be
Need to pay for the surplus power
Could not be utilized.

[0004]

In order to achieve the above-mentioned object, the present invention relates to a power transmission tower which is housed and installed in an empty space inside a power transmission tower.
Around the boss having a shaft hole into which the rotating shaft is fitted.
A plurality of blades are formed in a radial pattern and parallel to the axial direction, and the blades
Vertical axis shape with the tip of each curved backward in the rotation direction
A wind turbine, a generator driven by the rotating shaft,
The transmission destination of the electric power output from the
A switch to switch to one of the overhead ground lines of the electric tower
It is characterized by

[0005]

In the present invention, the electric power generated by the rotation of the windmill in the transmission tower is supplied to peripheral load devices via the switch.
Or transmitted to a remote location via an overhead ground wire installed on a power transmission tower. This makes it possible to transmit power at low cost because it is not necessary to construct a dedicated transmission line to transmit wind-generated power.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of the wind power generation system according to the present invention. In the figure, reference numeral 1 denotes a power transmission tower;
The rotating shaft 2 is supported vertically in the inner space of. The rotating shaft 2 has vertical shaft type windmills 3 to 6 mounted in the middle, and a rotation switching device 7 connected to the lower end. The rotation driving force generated in the wind turbines 3 to 6 is transmitted to the generator 8 via the rotation shaft 2 and the rotation switching device 7.

The electric power generated by the generator 8 is sent to the load 11 via the switch 9. The remaining power consumed by the load 11 is sent to the voltage regulator 12. The voltage regulator 12 converts the input power into a predetermined voltage and sends it to the storage battery 13 for storage. A DC device 14 and a converter 15 are connected to the storage battery 13 to supply DC respectively. The converter 15 converts the supplied direct current into alternating current and sends it to an alternating current device 16.
In addition, by the relay 17 driven by the storage battery 13,
When the switch 9 is switched, the power from the generator 8 is
After being sent to the transformer 18 and boosted to a predetermined voltage, it is sent to the overhead ground wire 21 of the power transmission tower 1. Note that a manual switch can be used as the switch 9.

FIG. 2 is a sectional view of the transmission tower 1 of FIG. As shown in the figure, windmills 3 to 5 are fitted and fixed to the rotating shaft 2, and each of the windmills 3 to 5 is in its up-down position,
Each is supported by stays 23 to 26 having a bearing 22. The windmills 3 to 5 become smaller as the windmills are installed at an upper position due to the limitation of the accommodation space of the transmission tower 1. The lower end of the rotating shaft 2 is connected to a generator 8 via a rotation switching device 7 including a clutch and a brake. By operating the lever 27 of the rotation switching device 7, the rotation shaft 2 and the generator 8 can be connected, or the rotation of the rotation shaft 2 can be stopped by braking. The rotation switching device 7
Can be automatically switched according to the load state and the power generation state.

FIG. 3 is a perspective view of the wind turbine 3 of FIG.
FIG. 4 is a perspective view of a state where the windmill 3 is fitted to the rotating shaft 2.
5 is a front view of the wind turbine 3, FIG. 6 is a right side view thereof, and FIG. 7 is a plan view thereof. As shown in each figure, a windmill 3 is provided around a boss 3b having a shaft hole 3a into which the rotating shaft 2 is fitted, with radially and axially parallel blades 3c.
3e are formed, and the tips of the blades 3c to 3e are respectively curved backward in the rotation direction. When the wind hits the windmill 3 thus formed in a lateral direction, that is, in a direction parallel to the radial direction,
The blades 3c to 3e generate torque in one direction with respect to the boss 3b.

The rotating shaft 2 is driven to rotate by this torque. The number of the blades 3c to 3e is not limited to three, but can be set to any number.
The size and shape of 3e can be arbitrarily changed according to the installation conditions of the system. The wind power generation system of this embodiment can be constructed by incorporating a wind turbine at the same time when a power transmission tower is newly installed, or can be additionally installed on an existing power transmission tower. In addition, the number of stages of the installed wind turbines can be arbitrarily determined within the tolerance of the structural strength of the transmission tower. Similarly, as long as the type of the windmill is a vertical axis type, another type, for example, a Darrieus windmill or the like can be used.

According to this embodiment, since the wind turbines 3 to 6 are installed in an empty space inside the power transmission tower 1, it is unnecessary to newly construct a dedicated steel tower like a conventional wind power generation system. In addition, there is no need to secure land, and construction costs are greatly reduced. Furthermore, each windmill 3
6 to 6 are housed inside the power transmission tower 1, so that the movable parts are not exposed and safety is obtained. In addition, since the generated power can be transmitted to a remote place using the overhead ground wire 21 of the power transmission tower 1, power transfer can be performed at low cost.

[0012]

[Effects of the Invention] As described above, according to the present invention, by installing and installing a vertical axis wind turbine in an empty space inside a power transmission tower, it is not necessary to construct a dedicated tower and at the same time it is unnecessary to secure land. Will greatly reduce construction costs.
In addition, since the vertical axis windmill is housed inside the power transmission tower, the movable portion is not exposed, and safety can be obtained.
Further, when transmitting the generated power to a remote location, the overhead power line of the power transmission tower is used, so that the cost of the wind power generation equipment is reduced, and the utilization of wind power at the location of the power transmission tower is promoted.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a wind power generation system according to the present invention.

FIG. 2 is a cross-sectional view of the power transmission tower of FIG.

FIG. 3 is a perspective view of the vertical axis wind turbine of FIG. 2;

FIG. 4 is a perspective view showing a state where the vertical axis windmill of FIG. 3 is fitted to a rotating shaft.

FIG. 5 is a front view of the vertical axis windmill of FIG. 3;

FIG. 6 is a right side view of FIG.

FIG. 7 is a plan view of FIG. 5;

FIG. 8 is an explanatory diagram showing a conventional example.

FIG. 9 is an explanatory diagram showing a conventional example.

[Description of Signs] 1 Power transmission tower 2 Rotating shaft 3-6 Vertical axis wind turbine 3a Shaft hole 3b Boss 3c-3e Blade 7 Rotation switching device 8 Generator 9 Switch 11 Load 12 Voltage regulator 13 Storage battery 14 DC device 15 Conversion Container 16 AC equipment 17 Relay 18 Transformer 21 Overhead ground wire 22 Bearing 23-26 Stay 27 Lever

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-339215 (JP, A) JP-A-61-93736 (JP, A) JP-A-53-48144 (JP, A) JP-A-58-1983 215929 (JP, A) JP-A-61-207881 (JP, A) JP-A-58-214680 (JP, A)

Claims (1)

(57) [Scope of request for utility model registration] Claims: 1. A storage and installation in an empty space inside a transmission tower.
Around the boss having a shaft hole into which the rotating shaft is fitted.
A plurality of blades are formed in a radial pattern and parallel to the axial direction, and the blades
Vertical axis shape with the tip of each curved backward in the rotation direction
A wind turbine, a generator driven by the rotating shaft, and a power transmission destination of the power output from the generator are connected to peripheral load devices.
Or a switch to switch to one of the overhead ground lines of the transmission tower
A wind power generation system comprising: