JP2005016452A - Wind power generation system, wind power generation method and wind power generation device for artificial airflow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide wind power generation technique allowing stable power generation and capable of constantly ensuring certain electricity generation, particularly the wind power generation technique allowing implementation in a form of accompanying an electric power system of a building and having effect in electric power cost reduction in the building. <P>SOLUTION: A wind power generation system uses artificial air flow and has a wind mill 10 rotatably arranged opposite to an air jet 8a for forming the artificial airflow, a generator 11 driven by the windmill 10, and an electric energy control means 2 controlling electric energy obtained from the generator 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a wind power generation technology using an artificial airflow for air conditioning formed in a turbine building of a power plant, a manufacturing factory for semiconductor products, etc., or a large-scale building such as a public facility or amusement facility. .
[0002]
[Problems to be solved by the invention]
In recent years, wind power has attracted attention as an energy source that is clean and does not run out, and full-scale commercial power generation has begun. However, the wind speed, that is, the natural airflow, does not have a constant wind speed and direction and sometimes stops for a long time, so that stable power generation is very difficult.
[0003]
By the way, in a large-scale building such as a building of a power plant, many electric devices with relatively small power consumption are installed. For example, many lighting fixtures are arranged on each floor. Therefore, even if it is a wind power generator with a small output, if it can be operated continuously and a constant power generation amount can be secured at all times, and if electric equipment such as lighting equipment can be functioned using the power thus obtained, It is extremely effective in reducing power costs in buildings.
[0004]
Therefore, the problem to be solved by the present invention is to provide a wind power generation technique capable of stable power generation and capable of constantly securing a constant power generation amount. In particular, it is possible to provide a wind power generation technique that can be implemented in a form attached to the power system of the building and that is effective in reducing the power cost in the building.
[0005]
[Means for Solving the Problems]
By the way, in the process of advancing earnest research to solve the above-mentioned problems, the present inventor flashes that air-conditioning airflow (artificial airflow) that is constantly formed in a building can be used for wind power generation. I got it.
[0006]
That is, in a large-scale building such as a building of a power plant, installation of air-conditioning equipment for exchanging air in the building is obligated by related laws and regulations. By the function of this air conditioning equipment, air is constantly supplied into the building at a constant flow rate, and at the same time, a balanced amount of air is discharged outside the building.
[0007]
And this inventor arrange | positions a windmill so as to oppose the air supply opening (air blowing opening) of the air-conditioning duct which plays such a role in a building, collect | recovers a part of energy which artificial airflow has, and generates electric power I came up with that. In other words, air is constantly supplied into the building, and therefore an artificial airflow is constantly formed. This is compared to conventional wind power generation technology that uses natural airflow with a constant wind speed and direction. It becomes a much more stable energy source. That is, stable wind power generation that does not cause a problem of output fluctuation is possible, and a constant power generation amount can be secured constantly.
[0008]
In particular, the wind power generation technology according to the present invention is arranged such that the air supply duct of the air conditioning duct and the wind turbine are paired, and as a result, is necessarily implemented in a form incidental to the power system of the building. Therefore, it is possible to operate electric devices such as lighting fixtures in the building using the obtained electric power, which is very effective in reducing the power cost in the building.
[0009]
According to the wind power generation technology according to the present invention, the following effects are further exhibited. The direction and flow velocity (flow rate) of the artificial airflow used as an energy source by the wind power generation technology according to the present invention are generally kept constant. By the way, the conventional wind power generator must be able to cope with a natural airflow whose direction and flow velocity constantly change, and is actually designed as such, and its structure is complicated. However, when an artificial airflow having a substantially constant direction and flow velocity is used, the structure of the apparatus can be remarkably simplified as compared with the conventional type.
[0010]
In addition, in the present invention, it is possible to employ a wind turbine having a shape and structure that corresponds only to a specific flow rate, in other words, that exhibits the maximum efficiency at that flow rate, so that it is possible to further improve the power generation efficiency. is there.
[0011]
The present invention has been made on the basis of the above-described new knowledge, and the above-described problem is a wind power generation system using an artificial airflow, and is arranged to face an air outlet that forms the artificial airflow. Solved by a wind power generation system comprising an installed windmill, a generator driven by the windmill, and electrical energy control means for controlling electrical energy obtained from the generator .
[0012]
In the wind power generation system according to the present invention, the electrical energy management means comprises a storage battery as a component, and the electrical energy management means charges the storage battery with electrical energy obtained from the generator, Or it is preferable to be comprised so that it may supply to an electric power supply object (electric equipment) as a direct current or an alternating current.
[0013]
This makes it possible to supply more stable power. In addition, it can be used as a power source for electrical equipment regardless of whether it is direct current or alternating current, and it is excellent in convenience. However, when an AC type generator is used as the generator, an AC current is converted into a DC current using a rectifier circuit or the like prior to charging the storage battery.
[0014]
On the other hand, the above-mentioned problem is a wind power generation method using an artificial airflow, in which a windmill arranged to face an air outlet that forms the artificial airflow is rotated by the action of the artificial airflow, and this rotational force Thus, the wind power generation method is characterized in that the generator connected to the rotating shaft of the windmill is driven to obtain electric energy.
[0015]
Similarly, the above-mentioned problem is a device used for wind power generation using artificial airflow, which is a windmill that rotates by receiving an artificial airflow, a generator in which an input shaft is connected to a rotation shaft of the windmill, a windmill, This is solved by a wind power generator for artificial airflow, characterized in that the generator is provided with support means for supporting the wind turbine so as to face an air outlet that forms an artificial airflow.
[0016]
In addition, in regard to any of the wind power generation system, the wind power generation method, and the wind power generator for artificial airflow according to the present invention, as the air outlet for forming the artificial airflow, the air supply duct of the air conditioning duct installed in the building Can be mentioned. In addition, examples of the air outlet that forms the artificial airflow include an exhaust outlet for discharging the air in the building to the outside of the building. However, there are cases where a windmill is installed opposite the air supply duct of an air conditioning duct installed in the building, and where a windmill is installed opposite the exhaust outlet for discharging the air inside the building outside the building. In comparison, it is preferable that the windmill is installed facing the air supply port of the air conditioning duct installed in the building in that the windmill is not easily affected by the external wind.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the wind power generation technology according to the present invention will be specifically described with reference to FIGS. 1 and 2 by taking as an example a case where the wind power generation technology is implemented in a turbine building of a power plant that is a large-scale building. FIG. 1 is a conceptual diagram showing the configuration of the wind power generation system according to the present embodiment, and FIG. 2 is a schematic diagram showing the positional relationship between the windmill and the air supply port of the air conditioning duct.
[0018]
However, this is one form of the present invention, and it can be carried out in the same manner in various buildings other than the turbine building or with appropriate modifications without departing from the technical idea of the invention.
[0019]
The wind power generation system according to the present embodiment (hereinafter referred to as the present wind power generation system) uses an artificial airflow for air conditioning in a turbine building, and as can be seen from FIG. It is comprised from the electric power generating apparatus 1 and the electrical energy control means 2. FIG. Among these, the electric energy control means 2 plays a role of controlling electric energy obtained from a generator of the wind power generator 1 described later. In this embodiment, this electric energy control means 2 is comprised from the charging / discharging controller 3, the storage battery 4 and the inverter 5 which were connected to this.
[0020]
Two power supply terminals for output are connected to the charge / discharge controller 3. One of them is a DC power supply terminal 6 for supplying a DC current to a DC electric device (not shown) as a power supply target, which is directly connected to the charge / discharge controller 3. Another output power supply terminal is an AC power supply terminal 7 for supplying an AC current to an AC electric device (not shown) that is a power supply target, and this is connected to the charge / discharge controller 3 via the inverter 5. It is connected to the.
[0021]
The electric energy control means 2 charges the storage battery 3 with electric energy obtained from the generator of the wind power generator 1 or supplies it to the DC power supply terminal 6 or AC power supply terminal 7 (that is, supplies power as DC current or AC current). To supply the target). The electric energy management means 2 further discharges the storage battery 3 as necessary to supply required power to the DC power supply terminal 6 or the AC power supply terminal 7. In the present embodiment, an AC current having a voltage of 100 V can be obtained from the AC power supply terminal 7 by the action of the inverter 5.
[0022]
Incidentally, in FIG. 1, a power transmission line through which a direct current flows is indicated by a broken line, while a power transmission line through which an alternating current flows is indicated by a two-dot chain line. By the way, in the case where the power supply target is limited to only the DC electric equipment, the structure of the system can be further simplified. That is, the inverter 5 and the AC power supply terminal 7 can be omitted. On the other hand, when the power supply target is limited only to the AC type electric device, the DC power supply terminal 6 can be omitted.
[0023]
Now, a plurality of wind turbine generators (hereinafter referred to as “wind turbine generators”) 1 according to this embodiment are installed in one air conditioning duct 8. That is, in FIG. 1, only two wind power generators 1 are shown, but in reality, the same number as the air supply ports 8 a of the air conditioning duct 8 is provided. In the present embodiment, the air supply port 8a of the air conditioning duct 8 installed in the building is thus an air outlet that forms the artificial airflow.
[0024]
As shown in FIG. 2, the wind power generator 1 used for wind power generation using an artificial airflow generally includes a propeller-type windmill 10, a generator 11, and a support (support means) 12. Among these, the windmill 10 is arrange | positioned so that the blower outlet of the air which forms an artificial airflow, ie, the said air supply port 8a, may be opposed. That is, the windmill 10 is arranged toward the wind that is always blown out from the air supply port 8a in a predetermined direction, and the blades of the windmill 10 are rotated by the wind from the air supply port 8a.
[0025]
In the present embodiment, a wind turbine 10 in which a plurality of blades are arranged radially around the rotation shaft 10a is used. However, besides this, for example, a windmill in which a plurality of blades are arranged so as to surround the axial direction of the vertical rotation axis may be used. In other words, the optimum wind turbine is selected in consideration of various conditions.
[0026]
The rotating shaft 10a of the windmill 10 is connected to the input shaft (not shown) of the generator 11, and therefore the generator 11 rotatably supports the windmill 10 at a fixed position. Needless to say, the generator 11 is driven by a windmill 10 that rotates by receiving an artificial airflow. The generator 11 used here is an AC type, but has a built-in rectifier circuit (not shown), and therefore the wind power generator 1 converts the generated electrical energy into a DC current. Output.
[0027]
The support 12 is configured by bending a metal pipe or the like, and the generator 11 is attached to the tip side thereof. Further, the proximal end side of the support 12 is fixed to the air conditioning duct 8. The support 12 serves to support the windmill 10 and the generator 11 so that the windmill 10 faces the air supply port 8a that is an air outlet that forms an artificial airflow.
[0028]
In the present embodiment, the distance L between the air inlet 8a and the windmill 10 is set to about 0.5 to 3 times the diameter D of the windmill 10, for example. However, this is determined in consideration of the flow velocity (air volume) of the artificial airflow, the size / shape of the air supply port 8a, and the surrounding environment. Moreover, although the case where the generator 11 was fixed to the air-conditioning duct 8 via the support 12 was taken as an example here, of course, the ceiling, floor, wall surface of the building (if the building has a hierarchical structure, each floor May be fixed using appropriate support means.
[0029]
Furthermore, in the present embodiment, the air-conditioning duct 8 suspended from the ceiling is taken as an example. However, even if it is arranged along the floor or wall surface, the same as before. This wind power generator 1 is installed.
[0030]
As described above, in the power generation method using the wind power generation system, in other words, in the wind power generation method according to the present embodiment, the artificial airflow for air conditioning in the building is used as an energy source. And the wind turbine 10 rotatably arranged so as to face the air outlet, that is, the air supply port 8a of the air conditioning duct 8, that forms this artificial air current is rotated by the action of the artificial air current, and by this rotational force, The generator 11 connected to the rotating shaft 10a of the windmill 10 is driven to obtain required electrical energy.
[0031]
Now, when the wind power generation technology according to the present embodiment is used, an artificial airflow having a constant flow velocity is constantly formed in a building such as a turbine building, so a natural airflow in which the wind speed and direction are not constant. Compared with the prior art using the power generation, extremely stable wind power generation is possible, and a constant power generation amount can be secured constantly.
[0032]
In addition, the wind power generation technology according to the present embodiment is arranged so that the air supply port 8a of the air conditioning duct 8 and the wind turbine 10 are paired. Will be. Therefore, it is possible to operate electric equipment such as a lighting fixture in the building using the obtained electric power, and it has a great effect on reducing the power cost in the building.
[0033]
In addition, the direction and flow velocity (flow rate) of the artificial airflow used as an energy source by the wind power generation technology according to the present embodiment is generally kept constant. Therefore, when using artificial airflow, it must be able to cope with natural airflow whose direction and flow velocity are constantly changing, and in fact, the structure of the device is significantly simplified compared to conventional devices designed as such. Can be In addition, since it is possible to employ a wind turbine having a shape and structure that can be used only at a specific flow rate and exhibits maximum efficiency at that flow rate, it is possible to further improve power generation efficiency.
[0034]
In the present embodiment, the case where an air supply port of an air conditioning duct installed in a building is used as an air outlet for forming an artificial airflow is taken as an example. However, the air outlet that forms the artificial airflow is not limited to this. As other embodiment of this invention, what utilized the exhaust port for discharging the air in a building outside a building as an air outlet which forms an artificial airflow, for example is mentioned. In other words, the artificial airflow generated near the exhaust port can be used as an energy source for wind power generation.
[0035]
【The invention's effect】
According to the present invention, stable wind power generation is possible, and a constant power generation amount can be secured constantly. In particular, wind power generation is possible in the form accompanying the power system of the building, which is effective in reducing the power cost in the building.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a configuration of a wind power generation system according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing a positional relationship between a wind turbine and an air supply port of an air conditioning duct.
1 Wind power generator (wind power generator for artificial airflow)
2 Electric energy control means 3 Charge / discharge controller 4 Storage battery 5 Inverter 6 DC power supply terminal 7 AC power supply terminal 8 Air conditioning duct 8a Air supply duct of air conditioning duct (air outlet for forming an artificial air flow)
DESCRIPTION OF SYMBOLS 10 Windmill 10a Rotating shaft 11 of a windmill Generator 12 Support tool (support means)

Claims (10)

A wind power generation system using artificial airflow,
A windmill disposed to face an air outlet that forms the artificial airflow;
A generator driven by this windmill,
A wind power generation system comprising an electric energy control means for controlling electric energy obtained from the generator. The electric energy management means comprises a storage battery as a constituent element, and is configured to charge the electric energy obtained from the generator to the storage battery or supply it to a power supply target as a direct current or an alternating current. The wind power generation system according to claim 1. The wind power generation system according to claim 1 or 2, wherein the air outlet that forms the artificial airflow is an air supply port of an air conditioning duct installed in a building. The wind power generation system according to claim 1 or 2, wherein the air outlet that forms the artificial airflow is an exhaust outlet for discharging air in the building to the outside of the building. A wind power generation method using artificial airflow,
A windmill disposed to face the air outlet that forms the artificial airflow is rotated by the action of the artificial airflow, and a generator connected to the rotating shaft of the windmill is driven by this rotational force. A wind power generation method characterized by obtaining electrical energy. The wind power generation method according to claim 5, wherein the air outlet that forms the artificial airflow is an air supply port of an air-conditioning duct installed in the building. 6. The wind power generation method according to claim 5, wherein the air outlet that forms the artificial airflow is an exhaust outlet for discharging the air inside the building to the outside of the building. A device used for wind power generation using artificial airflow,
A windmill that rotates in response to the artificial airflow;
A generator whose input shaft is connected to the rotating shaft of the windmill;
A wind power generator for artificial airflow, comprising: support means for supporting the windmill and the generator so that the windmill faces an air outlet that forms the artificial airflow. The wind power generator for artificial airflow according to claim 8, wherein the air outlet that forms the artificial airflow is an air supply port of an air conditioning duct installed in the building. The wind power generator for artificial airflow according to claim 8, wherein the air outlet that forms the artificial airflow is an air outlet for discharging air inside the building to the outside of the building.

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