JPH09222071A - Wind power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple and light-weight wind power generation system without setting up large facilities in an air space by disposing a plurality of windmills having air compressors in a matrix form and rotating an air turbine by compressed air obtained by each air compressor so as to run a generator. SOLUTION: Windmills 1 having air compressors 2 are laid on a suspension wire 5 put on a main wire 4 provided between iron towers 3 and 3 in a matrix form. Compressed air generated by each air compressor 2 is supplied to an air turbine 9 by a capillary tube 7 so as to drive this turbine. Then, a generator is driven by power generated by the air turbine 9 and generated electricity is sent to a consuming part by an electricity sending line 13. For a windmill 1, a conventional type having a diameter of 1 to 10m is used and an area for actually receiving wind is increased by disposing a number of these mills in a matrix form. A wire interval between upper and lower suspension wires 5 and 5 is held constant by a wire interval holding mechanism 6.

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, and more particularly to a wind power generation system that can use wind energy at low cost and has a simplified facility.

[0002]

2. Description of the Related Art Conventionally, as a wind power generation system of this type, a tower is provided with a windmill in the high air, and a generator is connected via a transmission connected to the windmill to control a wind turbine by attaching a control device. However, a system that generates electricity as it is is known. In addition, in order to avoid the high equipment cost and the complexity of control due to the installation of power generation equipment in each individual wind turbine, the air compressor is driven by the wind turbine to generate compressed air, and the compressed air is used to generate the generator. A wind power generation system for driving an electric vehicle to generate electric power has also been proposed.

[0003]

By the way, a power generation system in which a wind turbine is provided in a conventional tower, a generator is connected to this wind turbine, and the direction of the wind turbine or the generator is changed according to the wind direction is a rotation speed control of the generator or Direction control is required, a complicated control device is required, and the equipment cost becomes high,
The maintenance was complicated and required a lot of labor. Also,
Since the weight of equipment installed in the air becomes heavy, the tower must be made large. Further, when the wind speed is slow or fluctuates, a braking action (power loss) may occur in the generator. In general, the larger the wind turbine, the larger the difference in the wind speed distribution within the wind turbine receiving area, and even if optimal pitch control (phasoring) is performed, the wind speed will be partly different due to uneven wind speed. This is because the state becomes slow, the braking action (blower action) is activated, and a loss of capacity may occur. In addition, even when the wind speed changes rapidly with time, pitch control cannot follow, efficient conversion of wind energy cannot be performed, and power loss occurs due to the braking action.
Further, also in the system in which the air compressor is driven by the wind turbine, each wind turbine has a compressor instead of a generator, and has the same drawbacks as the above case. As a result of various researches on wind power generation, the present inventor provided an air compressor individually to a large number of small wind turbines with fixed directions to generate compressed air, and it is inexpensive and promising to operate the generator by compressed air. We have come to the knowledge that there is.

The present invention has been made in response to the above-mentioned problems, and its object is to provide a simple and lightweight wind power generation system without installing large-scale equipment in the air. To do.

[0005]

A wind power generation system according to claim 1 of the present invention as a means for achieving the above object arranges a plurality of wind turbines to which an air compressor is attached in a matrix. At the same time, an air turbine is connected to the air compressor via a conduit, and the compressed air obtained by the air compressor rotates the air turbine to operate the generator to generate electricity.

According to a second aspect of the wind power generation system, the air compressor is a reversible rotary compressor. The wind turbine generator system according to claim 3 is characterized in that the wind turbine is provided on a stretched wire, and the wind turbine generator system according to claim 4 further comprises a plurality of the wires stretched in the horizontal direction. Is attached to the wire, and a wire interval holding rod for maintaining the horizontal direction of the wind turbine and holding the vertical interval of the wind turbine is provided between the upper and lower wires in the horizontal direction.

Here, in the present invention, in order to make the power generation output of the generator constant and improve the utilization efficiency of the wind power, a tank for storing the compressed air obtained by the air compressor is provided, and the compressed air is supplied from this tank. The air turbine / generator may be taken out to operate the air turbine / generator. Further, providing a plurality of wind turbines with attached air compressors in a matrix means that a large number of wind turbines are arranged at predetermined intervals in the vertical and horizontal directions, and for example, a regular rule at each vertex such as a square or a rhombus. It refers to a configuration that is arranged with a property.

[0008]

According to the wind power generation system of the first aspect of the present invention, an air compressor is attached to each wind turbine, and a large number of air compressors are provided in a matrix. The generated compressed air drives the generator to generate power. Since it is not necessary to install a large-scale control device or transmission in the air, the equipment can be simplified,
It is possible to reduce the weight of equipment installed in the air and to reduce the cost of the apparatus. In addition, since many wind turbines can be installed close to each other, the wind utilization area can be increased, and the wind energy conversion cost can be reduced. In this case, only that part is stopped, and the other devices can continue to operate as they are. Therefore, there is an effect that the power generation equipment can continue to operate without stopping. Also, by being able to install wind turbines and compressors over a wide area, wind power fluctuations received by wind turbines are mitigated, averaged over time, generated power fluctuations are mitigated, and high-quality electrical energy is obtained. Rotational speed (frequency) of turbine and generator
Since the control of the output and the output can be performed by controlling the flow rate of the compressed air introduced into the air turbine, there is an effect that it can be extremely easily performed.

According to the wind power generation system of claim 2 of the present invention, since the air compressor is formed of a reversible rotary type compressor, the wind in the opposite direction can be effectively utilized, so that the direction fixed system is adopted. This has the effect of compensating for the poor utilization efficiency of wind power. Further, according to the wind power generation system of claim 3 of the present invention, since the wind turbine is provided on the stretched wire, in addition to the above effects, the device can be further simplified and made lighter in weight. Have an effect. Further, according to the wind power generation system of claim 4 of the present invention, since a plurality of wires are stretched in the horizontal direction and the wind turbine is maintained at the mounting position between the upper and lower wires, the vertical wire interval can be maintained, Since a large number of wind turbines can be regularly and stably provided, the installation cost can be reduced, the space can be effectively used, and the utilization efficiency of the wind power can be improved. In the present invention, a configuration may be adopted in which a tank for storing the compressed air obtained by the air compressor is provided and the compressed air is taken out from this tank to operate the air turbine / generator. By doing so, pressure fluctuations (output fluctuations) due to wind power fluctuations can be further alleviated, the quality of generated power can be improved, the power generation output of the generator can be stabilized, and wind power utilization efficiency can be improved. be able to.

[0010]

Preferred embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show an embodiment of the present invention.
Is a configuration diagram showing a schematic configuration of a wind power generation system according to the present invention, and FIG. 2 is a side view showing a wind turbine and an air compressor which are some of the components.

The wind turbine generator system of this embodiment is a wind turbine 1.
The air compressor 2 is attached to the above, and the windmill is installed on the suspending wire 5 suspended on the main wire 4 stretched between the steel towers 3 and 3. A conduit 7 is connected to the compressor 2, and the conduit 7
Is connected to the air turbine 9 of the generator 8. The generator 8 is installed in the power generation room 10, and the generated electricity is transmitted through the transmission line 13
The compressed air after being sent to the consuming portion by the use and used in the generator 8 is discharged from the inside of the power generation chamber 10.

The wind turbine 1 needs to be able to efficiently convert wind energy into rotational energy,
A conventionally known one having a diameter of about 1 m to 10 m is used. Then, a large number of wind turbines 1 are arranged on the suspension wires 5 in a matrix form to increase the area where the wind is actually received. In this way, when a large number of wind turbines 1 are provided in a matrix,
Since it is not possible to change the direction of the wind turbine 1 according to the wind direction, it is necessary to determine the direction so as to receive the most wind in consideration of the wind power and the wind direction frequency throughout the year. Further, even if the wind turbine 1 receives wind in the opposite direction, the reversible rotation type compressor (backflow prevention type, reciprocating type, etc.) so that the air compressor 2 can operate.
And Then, the wind turbines 1 are arranged in a matrix form by a suspension wire 5 between the steel towers 3 and 3.

The main wire 4 and the suspending wire 5 are used for the steel tower 3,
It is stretched between three. Main wire 4 is wire 5 for suspension
Is the main part that suspends. In this embodiment, the main wire 4
Is installed between the steel towers 3 and 3 to reduce the slack of the suspension wire 5, but depending on the number of the wind turbines 1, the main wire 4
Alternatively, a plurality of suspension wires 5 may be stretched, and a large number of suspension wires 5 may be suspended on each main wire 4. Hanging wire 5
Is a device that receives the power to generate compressed air and sends the generated compressed air to the generator (wind turbine 1, air compressor 2, conduit branch pipe 7a) using a hook or other detachable fixture 15. It is a wire for attaching and fixing. A wire interval holding rod 6 is provided between the vertically suspended wires 5 and 5 to keep the wire interval constant and to maintain the horizontal direction of the wind turbine 1. The steel tower 3 has a simple structure, and it is easy to design the steel tower 3 to withstand a larger load by being supported by the branch line 11, and can be economically manufactured advantageously.

Wire spacing bar 6 attached to the wind turbine 1.
Is made of a rigid member that can be attached so as to keep the elevation angle of the wind turbine horizontal, and is extended in the vertical direction so as to keep the interval between the upper and lower wind turbines 1, 1 constant. Further, in this embodiment, the compressed air conduit branch pipe 7a is hung on the suspension wire 5 and suspended.

The conduit 7 is a member for guiding the compressed air generated in the air compressor 2 of each wind turbine 1 to the air turbine 9 of the generator 8, and is composed of a conduit branch pipe 7a, a collecting vertical pipe 7b and a horizontal pipe 7c. There is. The horizontal pipe 7c is led to a compressed air storage tank 12 and then connected to an air turbine 9. A backflow prevention valve (not shown) is provided in the air compressor 2 or in the connecting portion between the air compressor 2 and the conduit branch pipe 7a, and even if the generated pressure of the compressed air in the air compressor 2 becomes low, High pressure compressed air is prevented from entering a low pressure compressor, and compressed air is effectively generated. Further, a device for separating condensed water is provided in the pipe or in the vicinity of the storage tank 12 so that the compressed air can be efficiently used.

Next, the operational effects of the wind power generation system of this embodiment will be described. First, the main wire 4 is stretched between the steel towers 3 and 3, the suspension wire 5 is suspended on the main wire 4, the wind turbine 1 is provided on the suspension wire 5, and the air compressor 2 is installed. Install. The compressed air discharge port of the air compressor 2 is detachably connected to the branch conduit 7a via the stop valve 14, the branch conduit 7a is connected to the collecting vertical pipe 7b, and further, via the horizontal pipe 7c. Connect to storage tank 12. This storage tank 12 is connected to the air turbine 9 of the generator 8 to form a system. The compressor 2 or the conduit 7 and the tank 12 are provided with drain drains.

Each windmill 1 is rotated by the wind, and the air compressor 2
To convert wind energy into rotational energy,
Generate compressed air. The generated compressed air is sent from the branch conduit 7a to the conduit 7 and stored in the storage tank 12. In this case, when the pressure of the compressed air generated in the compressor 2 is insufficient, the compressor (or the compressor of the compressor group) 2 or the connecting portion between the compressor 2 and the branch conduit 7a is illustrated. Since the non-return valve is provided, the compressed air generated in the other compressor 2 does not flow back, and the compressed air having a high pressure can be reliably stored in the storage tank 12 to improve the utilization efficiency. It does not lower. The compressed air stored in the storage tank 12 is sent to the compressed air turbine 9, which is rotated to operate the generator 8 to generate electricity. As described above, when compressed air is stored in the storage tank 12 and used, when a large amount of compressed air is generated, the compressed air can be consumed without wasting, and the utilization efficiency of wind power can be improved. Further, when performing maintenance on the individual wind turbines 1 and the compressors 2, the stop valve 14 may be closed and the wind turbines 1 and the compressors 2 may be removed from the branch conduit 7a.

It should be noted that the present invention is not limited to the above-described embodiments, but includes modifications that can be implemented without departing from the spirit of the present invention. Incidentally, in the above-mentioned embodiment, the configuration provided with the storage tank has been described.
When there are many wind turbines, the storage tank may be omitted. In addition, although an example of installing a wind turbine there by using a suspended main wire has been described, if the span of the strut to stretch the main wire cannot be made long, a large number of wind turbines can be used without a suspended main wire. Needless to say, the suspension wire may be stretched and the windmill may be provided on the suspension wire. Further, a safety valve or an escape valve for discharging excess compressed air may be provided. Other than the above, the structure is not limited to the above-described one, and it is needless to say that the structure may have a similar effect. When the wind power generation system of the present invention is installed in a valley, a main wire (suspension wire) is stretched from a ridge to a ridge instead of the steel tower, or a main wire (suspension wire) is provided between buildings. ) May be installed, or the structure may be constructed using natural terrain, buildings, and structures.

[Brief description of drawings]

FIG. 1 is a front view of a part of a wind turbine generator system according to an embodiment of the present invention.

2 is a side view of the wind turbine of FIG. 1. FIG.

[Explanation of symbols]

1 ... Windmill, 2 ... Air compressor, 3 ... Tower, 4
... Main wire, 5 ... Suspension wire, 6 ... Wire spacing bar, 7 ... Conduit, 8 ... Generator, 9 ...
・ Air turbine, 10 ... power generation room, 11 ... branch line,
12 ... Tank, 13 ... Power transmission line, 14 ... Stop valve, 15 ... Fixing device

Claims (4)

[Claims] 1. A plurality of wind turbines equipped with an air compressor are arranged in a matrix, and an air turbine is connected to the air compressor via a conduit, and compressed air obtained by the air compressor is used. A wind power generation system characterized by rotating an air turbine to operate a generator to generate electricity. 2. The wind power generation system according to claim 1, wherein the air compressor is a reversible rotary compressor. 3. The wind power generation system according to claim 1, wherein the wind turbine is provided on a stretched wire. 4. A plurality of the wires are stretched in the horizontal direction, the wind turbine is attached to the wire, and the horizontal direction of the wind turbine is maintained between upper and lower wires in the horizontal direction,
The wind power generation system according to claim 3, further comprising a wire spacing holding rod for holding the vertical spacing of the wind turbine.