KR100994293B1 - Wind power apparatus integrated in building and Building having wind power apparatus - Google Patents

Abstract

The present invention relates to a building integrated wind power generator and a building having such a wind power generator is installed in the through-hole formed in the upper floor of the building.

Building integrated wind power generator according to the present invention includes a blade installed in the through-hole formed in the outer wall of the building, and the generator is connected to the blade to convert the rotational force of the blade into electrical energy to generate electricity.

A through hole is formed in the outer wall of the building according to the present invention, and the through hole is provided with a wind power generator for producing electricity by using wind, and the wind power generator is connected to a blade and the blade to convert the rotational force of the blade into electrical energy. Generator to generate electricity by converting

Building, wind power generator, through hole, maximum power point control

Description

Wind power apparatus integrated in building and building having wind power apparatus}

The present invention relates to a building integrated wind power generator and a building having the same, and more particularly, a building integrated wind power generator capable of generating wind power by installing a wind power generator in a through hole formed in an upper part of a building, and such wind power. The present invention relates to a building having a power generation device.

Wind power has the advantage of getting electricity at a low cost, making it an attractive alternative to the current depletion of fossil energy and environmental pollution and pollution-free alternatives.

Wind power generation includes a large wind power generation method and a small wind power generation method, a large wind power generation using a large blade has the advantage that the cost of generating less than the small wind power generation.

However, even in the case of large wind power generation, since the amount of power generated by one generator is not sufficient, a large-scale wind power tower must be constructed in order to produce sufficient power for use in a home or a factory. In order to construct such a large-scale wind power tower, not only a large area is required, but also a large noise is generated.

Therefore, in an area where a large wind power generation facility cannot be installed, a method of generating wind power by installing a small 1-20 kw outdoor wind power generator in a building such as a house or an office building has been attempted. Small wind turbines have the advantage of being able to generate power at relatively low wind speeds compared to large wind turbines. When used in buildings, it is common to install a separate power tower on the roof of a building and mount blades on the tower.

However, when installing a separate power tower on the roof of the building as described above, and the blade is mounted on the power tower to generate power, the power tower should be placed so that there is sufficient distance between the blades so that the power generation effect is effectively exhibited against the main wind direction. Must be installed. As such, due to the limitation of providing sufficient separation distance between the wind turbines, only a few wind turbines can be installed on the limited building rooftop, and thus there is a limit that a sufficient amount of power generation can not be expected to meet the power demand.

In particular, each blade should be connected to a power converter, and as a result, when only a few blades are connected to an expensive power converter due to the limitation of installation space such as a roof of a building, operation efficiency decreases by that much. have.

The present invention is to solve the problems of the prior art as described above, the building-integrated wind power generator that can be installed in a building without a separate power tower on the building roof, and such a wind power generator It aims at providing the provided building.

In addition, an object of the present invention is to provide a building integrated wind power generator that can maximize the utilization of the power converter by allowing a plurality of blades to be connected to an expensive power converter, and a building having such a wind power generator. do.

In order to achieve the above object, the building integrated wind power generator according to the present invention is a blade installed in the through-hole formed in the outer wall of the building, the generator is connected to the blade to convert the rotational force of the blade into electrical energy to generate electricity Include.

The apparatus may further include a direct current alternating current converter converting an alternating current power source and a direct current power source, and a power storage device for storing the direct current power converted by the direct current alternating current converter. The electricity produced by the generator is converted into direct current power by the direct current alternating current converter and transferred to the electric power storage device for storage.

In addition, the generator may be composed of a winding type induction generator.

In addition, the integrated wind turbine generator may include a parking terminal connected to the stator side of the generator and a controller connected to the rotor side of the generator to control power.

In the building according to the present invention, a through hole is formed in an outer wall, and the through hole is provided with a wind power generator for producing electricity by using wind. The wind turbine generator includes a blade and a generator connected to the blade to convert rotational force of the blade into electrical energy to generate electricity.

The wind power generator may further include a direct current alternating current converter converting an alternating current power source and a direct current power source, and a power storage device storing the direct current power converted by the direct current alternating current converter. The electricity produced by the generator is converted into direct current power by the direct current alternating current converter and transferred to the electric power storage device for storage.

In addition, the generator of the wind power generator may be composed of a winding type induction generator.

In addition, the wind turbine generator may include a parking terminal connected to the stator side of the generator and a controller connected to the rotor side of the generator to control power.

The present invention allows a wind power generator to be installed in a building using a through hole formed in an outer wall of a building without installing a separate power tower on the building roof. Since the wind power generators are installed side by side in the through-holes formed in the outer wall of the building, a plurality of wind power generators can be installed in the building without limiting the distance between the wind power generators. Therefore, it is possible to produce electricity using a plurality of wind power generators, it is possible to provide a larger power to the load inside and outside the building when the wind turbine is installed on the roof of the building.

In addition, when installing a plurality of blades in the building according to the invention, a plurality of blades may be connected to an expensive power converter. Therefore, it is possible to maximize the utilization of the expensive power conversion device.

In addition, the present invention makes it possible to store the power produced by the generator in the storage device. The stored power can be used in an emergency, so the power supply to the building can be continued in the event of a power failure.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

1 is a schematic view showing a state in which a wind power generator is installed in a building according to the present invention.

In the case of high-rise office buildings or apartment buildings, the upper part of the building has an average wind speed of 3 to 4 m / s, which is sufficient to drive a small wind turbine. As shown in FIG. 1, according to the present invention, a plurality of through holes are formed in an outer wall of an upper floor of a building, and the through blades 10 of the wind turbine are respectively installed.

As in the conventional case, in the case of attaching the blade by installing a separate power tower on the roof of the building, the size of the rooftop site is limited, and the number of blade installation is not sufficient, but in the case of the present invention, the upper part of the building By forming a plurality of through holes in the upper and lower left and right on the outer wall in, because the blade 10 of the wind turbine is installed, there is an advantage that can be installed a sufficient number of blades.

In forming the through-holes for installing the blade 10 as described above, it is not necessary to form a new through-holes on the outer wall of the building, it is also possible to utilize the windows that were previously formed as the blade installation through-holes. In addition, the formation position of the through hole is not necessarily limited to the front of the building, it may be formed in the side or the back of the building in accordance with the characteristics such as the direction of the wind blowing in the building.

2 is a conceptual view showing that the blade 10 and the generator 20 of the wind turbine are installed in the through hole, and the electricity generated by the wind turbine is supplied to various loads. As shown in FIG. 2, a wind power generator including a blade 10 and a generator 20 is installed in a through hole formed in an outer wall of an upper floor of a building, and electricity generated from the generator 20 by rotation of the blade 10. Is supplied to loads of various electric devices and the like through the power line 80 connected to the generator 20. In FIG. 2, reference numeral 140 denotes a street lamp 140, reference numeral 120 denotes a fan 120, and reference numeral 40 denotes an electric power storage device 40. That is, the electricity generated through the generator 20 according to the rotation of the blade 10 installed on the outer wall of the building is directly supplied to various loads 70, the fan 120, or the like inside the building, or the street lamp 140. It may also be supplied to the power consumption load outside the building, it may be stored in the power storage device (40). The power stored in the power storage device 40 may be used as an emergency power source in a situation such as a power outage of a building. Electricity generated through the generator 20 is converted into DC power, which is a form of power that can be stored by the DC / AC converter 30, and stored in the power storage device 40.

As described above, according to the present invention, the electricity generated by the wind power generator installed on the upper floor of the building is supplied to loads such as various electric devices in the building to cover the power consumed by the building itself, and the power storage device 40. It can also be used as an emergency power source if needed.

In the present invention, the generator 20, the DC / AC converter 30 and the power storage device 40 itself is already known, it is preferable to use a winding induction generator as the generator 20. The winding type induction generator generates power by generating induced electromotive force on the stator side by the rotation of the rotor side, and is generally composed of a three-phase generator for stable power generation. Since the winding type induction generator is relatively inexpensive and has excellent durability, it is advantageous to produce power by being connected to a plurality of blades 10 as in the present invention.

3 is a schematic view showing the configuration of an embodiment using a three-phase generator as the generator 30 of the wind turbine, between the stator side of the generator 20 and the power line 80 in the building. The controller 60 is provided between the rotor side of the generator 20 and the power line 80 in the building.

The parking terminal 50 connects the stator side of the generator 20 to the power line 80 in the building, and serves to cut off power when an overload occurs in the power line 80. The controller 60 controls power between the rotor side of the generator 20 and the power line 80.

In wind power generation, a control method that makes the most of the kinetic energy of the wind is important. Especially, the upper part of the building is easy to become turbulent, and its importance is higher because the wind direction and wind speed change frequently. Pitch control techniques and stall control techniques may be used as control methods for wind power generation, but these methods are complicated in control methods and require an additional power converter.

Therefore, in order to alleviate this inconvenience, it is desirable to use a Maximum Power Point Tracking (MPPT) control technique. In wind power generation, there is a driving point that produces the maximum output at a given wind speed. Even when the wind speed changes, the maximum power generation efficiency can be obtained by following the maximum driving point. In the present invention, it is preferable to use a back to back converter as a controller. The back-to-back converter controls the active power and the reactive power output by controlling the current, and controls the DC link voltage on the grid side and the reactive power of the grid.

As such, when the maximum power point tracking control technique is used in the present invention, the power factor of the system can be easily adjusted through the control of the current, and the maximum power generation efficiency can be obtained for variously changing wind speeds.

Wind power generation requires wind speeds above a certain speed in order to generate power. This wind speed is called cut-in wind speed, and below the cut-in wind speed, the wind power generator cannot generate power, and the power production becomes zero. Cut-in wind speed depends on the design of the wind turbine, which is typically 3 to 4 m / s for small wind turbines.

If the wind is below the cut-in wind speed, the wind turbine does not generate power. In the present invention, if the wind is below the cut-in wind speed, the wind turbine is used as a fan. It can be utilized.

In the present invention, since the blade 10 of the wind turbine is installed in the through hole, if the blade 10 of the wind turbine is reversed while the through hole communicates with the inside of the building, the air in the building is directed to the outside. Will be discharged. Therefore, in the present invention, by installing the wind speed sensor, if the wind speed is measured to be less than the cut-in wind speed to rotate the blade 10 through the controller 60 to operate as a fan. Therefore, there is an advantage that it can replace the ventilation system for air circulation inside the building.

1 is a schematic view showing a state in which a wind power generator is installed in a building according to the present invention.

2 is a conceptual view showing that the blade and the generator of the wind turbine are installed in the through hole, and the electricity generated by the wind turbine is supplied to various loads.

Figure 3 is a schematic diagram showing the configuration of an embodiment using a three-phase generator as a generator of the wind turbine.

Claims (8)

A blade formed on the outer wall of the building and installed in the through hole communicating with the inside of the building; A generator connected to the blade to generate electricity by converting rotational force of the blade into electrical energy; A wind speed sensor for measuring wind speed; And A controller for controlling the rotation direction of the blade, If the wind speed is measured by the wind speed sensor is more than the cut-in wind speed, electricity is generated by the rotational force of the blade rotated by the wind, And if the wind speed is measured by the wind speed sensor to be less than the cut-in wind speed, the controller rotates the blade in a direction opposite to the rotational direction of the blade during electric power generation, and operates as a fan. The method of claim 1, A DC / AC converter for converting AC power and DC power to each other; And Further comprising a power storage device for storing the DC power converted by the DC / AC converter, The electricity produced by the generator is converted into a direct current power in the DC / AC converter, the building integrated wind power generator, characterized in that the transmission is stored. The method of claim 1, The generator is a building integrated wind power generator, characterized in that consisting of a winding induction generator. The method of claim 3, wherein The building integrated wind power generator, A parking terminal connected to the stator side of the generator; And a controller connected to the rotor side of the generator to control electric power. The through-hole communicating with the inside of the building is formed on the outer wall, The through-hole is provided with a wind power generator for producing electricity using the wind, The wind power generator, A blade installed in the through hole; A generator connected to the blade to generate electricity by converting rotational force of the blade into electrical energy; A wind speed sensor for measuring wind speed; And Including a controller for controlling the rotation direction of the blade, If the wind speed is measured by the wind speed sensor is more than the cut-in wind speed, the electricity is generated by the rotational force of the blade rotated by the wind, And if the wind speed is measured by the wind speed sensor to be less than the cut-in wind speed, the controller rotates the blade in a direction opposite to the rotation direction of the blade during electric power generation to circulate air in the building. The method of claim 5, The wind power generator, DC / AC inverter converting AC power and DC power to each other, and Further comprising a power storage device for storing the DC power converted by the DC / AC converter, The electricity produced by the generator is converted into direct current power in the DC / AC converter, the building characterized in that it is transferred to the power storage device and stored. The method of claim 5, The generator of the wind turbine generator is characterized in that the winding induction generator is configured. The method of claim 7, wherein The wind power generator, A parking terminal connected to the stator side of the generator; And a controller connected to the rotor side of the generator to control power.

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