KR200379280Y1 - Small wind power apparatus with a cylinder type blade - Google Patents

Abstract

The present invention relates to a small wind power generator having a cylindrical blade, which is suitable for a small power generator, and by mounting a cylindrical blade that is smoothly self-starting at the initial stage to the generator, generates the same power regardless of the direction of the wind, It is an object of the present invention to provide a small wind turbine with a cylindrical blade which is friendly and has a very high efficiency of power output.

The present invention is composed of an upper support plate and a lower support plate, respectively, at a predetermined distance from each other; An intermediate support is formed between the upper support plate and the lower support plate; Both ends of the plurality of vertical blades arranged at regular intervals are respectively coupled to the upper support plate and the intermediate support, and the intermediate support and the lower support plate, and the rotating shaft is coupled through the center of the upper support plate, the intermediate support and the lower support plate. Characterized in that the one-way rotation control member for controlling the rotation axis to rotate in one direction.

When the present invention is applied, the rotating part has a small size, and has a cylindrical blade mounting structure, so that it can generate an output of maximum efficiency at all times in response to the wind blowing from all directions. This is very easy, so it is suitable for the region where the air volume is small and the direction of the wind is not constant, as in Korea, and the rotating part has the advantage that higher efficiency can be generated by forming a horizontal blade in addition to the vertical blade.

Description

Small wind turbine with cylindrical blades {SMALL WIND POWER APPARATUS WITH A CYLINDER TYPE BLADE}

The present invention relates to a small wind power generator having a cylindrical blade, and more particularly suitable for a small power generator, by initially mounting a cylindrical blade that is smoothly self-starting to the generator generates the same power regardless of the wind direction The present invention relates to a small wind power generator having a cylindrical blade which is naturally friendly and has a very high efficiency of size and power output.

As is well known, the high oil price march continues as the world's oil reserves drop significantly. In recent years, as various alternative energy is developed, the efficiency is improved and the technology that can substantially replace oil is being spurred.

In view of its utility, versatility, and potential for development, a number of alternatives are likely to be solar and wind. Of course, the efficiency of the alternative energy is highly dependent on the climatic environment and operation characteristics, but if the power generation efficiency is increased, it is recognized as an energy substitute for oil.

In the case of wind power generators, a 2kW wind power generator developed by Korea Advanced Institute of Science and Technology in Hwaseong-gun, Gyeonggi-do in 1975 was built into Hyosi in 2001. Although research on localization development and operation characteristics has been conducted, many of them have been demolished or suspended during commissioning due to the lack of development of manufacturing technology and urea equipment, and the wind power equipment installed and operated in Wolryeong pilot complex and Jungmun complex in 1999. In February, only 600kW units installed at Hangwonri in Hankuk Fiber Inc. are operating normally, so it is time to reconsider domestic wind power R & D and commercialization projects.

The commonality of research in foreign countries and Korea is the unrealistic pursuit of enlargement. First of all, Europe allows for the enlargement by means of continuous western style. However, in Southeast Asia, including Japan, it should be directed to small and medium-sized, except for certain regions, due to its topographical influence. In other words, when the wind power generation system is installed in remote islands that cannot be connected to the grid, and operated for unit power supply, it is inevitable to produce wind energy corresponding to the annual amount of energy required in the region. Should be. In addition, it is the most economical and the best wind power generation system that can obtain the maximum power when the system that satisfies the above constraints and has the minimum output of rotational area, that is, the maximum output per unit rotational area is designed.

However, the existing wind power generation system is a method in which a large blade rotating at a low speed induces power generation by rotating the rotor of the generator at a high speed through a speed increaser. If it is not received, it will not be able to self-start in the early stage, so it is difficult to self-generate without the assistance of external artificial auxiliary power generation, so that it can be operated under limited conditions. have.

In Korea, the level of technology already includes most of the urea technologies such as generators and gearboxes, but due to the lack of experience in system technology and core specific technologies, it is difficult to localize development. Research on operation characteristics through multilateral joint development and installation / operation of advanced overseas products is needed to promote business exchange and increase investment efficiency.

In addition, there was an unfamiliar feeling about the power users due to the lack of technology on blade noise reduction and safety accidents in densely populated areas.

On the other hand, the conventional blade (Blade) is designed to rotate in response to the wind blowing from the front has a problem that has a relatively small amount of rotation in the wind blowing from the rear.

The present invention has been made in view of the above-described circumstances of the prior art, and is equipped with a cylindrical blade suitable for a small power generator and capable of initial self-starting on the generator to generate the same electric power regardless of the direction of the wind, and is naturally friendly. It is an object of the present invention to provide a small wind power generator having a cylindrical blade having a very high efficiency of power output to size.

In order to achieve the above object, according to a preferred embodiment of the present invention, when the electric power generated from the wind power generation module is input more than a predetermined, DC motor which is driven by receiving the generated power by the control signal; A drive gear coupled to the shaft of the DC motor; A driven gear connected to the drive gear via a chain at a position spaced apart from the drive gear by a predetermined distance; A power transmission pipe axially coupled to the driven gear; A power transmission shaft coupled to partially wrap the power transmission pipe on its outer circumference; A spring for storing power generation coupled to the same axis as the power transmission shaft; A first pulley configured on the same central axis of the power transmission shaft; A second pulley configured to be spaced apart from the first pulley by a predetermined distance and connected to the first pulley by a belt; A generator coupled to the axis of the second pulley and configured to generate a constant power by receiving a rotational force of the second pulley; By receiving the power values generated from the photovoltaic module and the wind power module, comparing and determining the corresponding power value and the reference value, a determination is made as to whether to further generate power through the mainspring, and it is determined whether to store power in the mainspring. An auxiliary power control unit is configured to control power storage and power compensation through the mainspring so that power is stored by loading some power as a load and some power as a spring during power generation, and further generating power through the generator during the low power generation. In the power generation apparatus, the wind power generation module and the cylindrical blade of the hollow state inside; The cylindrical blade is characterized in that the power generation is made in response to the wind blowing in all directions by further comprising a generator coupled to the same axis as the blade rotation axis to generate electric power Small wind turbines are provided.

Preferably, the cylindrical blade is composed of an upper support plate and a lower support plate, respectively, at a predetermined distance from each other; An intermediate support is formed between the upper support plate and the lower support plate; Both ends of the plurality of vertical blades arranged at regular intervals are respectively coupled to the upper support plate and the intermediate support, and the intermediate support and the lower support plate, and the rotating shaft is coupled through the center of the upper support plate, the intermediate support and the lower support plate. Provided is a small wind power generator having a cylindrical blade, characterized in that made of a one-way rotation control member for controlling the rotation axis to rotate in one direction.

Preferably, the intermediate support is provided with a compact wind turbine with a cylindrical blade, characterized in that the diameter of the structure is larger than the upper and lower support plates.

Preferably, the upper surface of the intermediate support and the lower support plate is provided with a small wind turbine generator having a cylindrical blade, characterized in that the horizontal blade is coupled to each of the four directions (east, west, south, north) structure.

Preferably, the one-way rotation control member is composed of a rotating body coupled to the outer periphery of the rotating shaft, the outer periphery of the rotating body is formed with a plurality of grooves, the leaf spring is mounted inside the groove And one end of the leaf spring is rotatably coupled to the switching projection, and the support body is provided with a support ring coupled to the frame, the rotor being embedded therein, and coupled to a frame separate from the rotation shaft. A small wind turbine is provided with a cylindrical blade, characterized in that the rotating shaft is controlled to be rotatable only in one direction by forming a plurality of locking projections at regular intervals.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a perspective view showing the appearance of a small wind turbine with a cylindrical blade according to an embodiment of the present invention, Figure 2 is an auxiliary of a small wind turbine with a cylindrical blade according to an embodiment of the present invention Side cross-sectional view showing the power storage, Figure 3 is a perspective view of the main portion showing a cylindrical blade mounted on a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

Referring to this, the small wind turbine (2) having a cylindrical blade according to an embodiment of the present invention is suitable for a small generator, and initially equipped with a cylindrical blade that is smoothly self-starting to the generator and the direction of the wind The same power is generated regardless of the nature, and the efficiency of the power output is very high compared to the size.

Small wind turbine (2) having a cylindrical blade according to an embodiment of the present invention is largely composed of a rotating portion 100 consisting of a cylindrical blade; The power compensator 12 is configured.

The rotating unit 100 is suitable for a small generator, and generates the same power irrespective of the direction of the wind, the means for rotating the blade used for the small generator is relatively small in size compared to the conventional large wind power generator As such, the rotating part 100 is first configured with an upper support plate 102 and a lower support plate 104 at positions spaced apart from each other by a predetermined length.

In addition, between the upper support plate 102 and the lower support plate 104 is formed an intermediate support 108 having a diameter larger than the diameter of the upper and lower support plates 102 and 104, the upper support plate 102 ) And the intermediate support 108, and the intermediate support 108 and the lower support plate 104 is coupled to both ends of the plurality of vertical blades (112, 114) arranged at regular intervals, respectively. Therefore, the outer shape of the rotating part 100 has the shape of the dust.

In addition, the horizontal blade 116 is coupled to the upper surface of the intermediate support 108 in four directions (east, west, south, north), and the lower support plate 104 also constitutes the horizontal blade 116. can do. Accordingly, the wind blowing from the outside pushes the vertical blades 112 and 114 while passing between the vertical blades 112 and 114 so that the rotating unit 100 rotates in a predetermined direction.

On the other hand, the upper support plate 102, the middle support 108, the center of the lower support plate 104 is coupled to the rotary shaft 106 connected vertically, the lower portion of the rotary shaft 106 is known generator 110 The rotating shaft 106 is coupled to the rotor 112 therein. That is, the rotor 112 and the rotating shaft 106 of the generator 110 is located on the coaxial line to transmit the rotational force of the blade directly to the shaft of the generator 110. Reference numeral 120 denotes a stator.

On the other hand, the small wind turbine (2) having a cylindrical blade according to an embodiment of the present invention is provided with a power compensation device 12 on the side of the rotating part 100, the power compensation device 12 is As a technology already proposed by the inventors of the present invention, the present invention is described because it is a device made by applying the power compensation device (12).

The power compensator 12 is composed of an outer box 14 of a hexahedron, and a frame 38 for supporting the entire device is formed inside the enclosure 14.

In addition, the base plate 16 for supporting the lower portion of the enclosure 14 constitutes the bottom surface, the inside of the frame 38, the wind power generation module (generated by the rotation of the rotating unit 100 ( 6: a circuit board 18 for comparing the generated power of the module including the rotating unit and the generator with the reference power and determining whether the power compensator 12 is driven is mounted, and the circuit board 18 On the side, a DC motor 20 driven by a control signal is mounted when electric power generated from the wind power generation module 6 is input over a predetermined value.

In addition, a drive gear 22 is coupled to the shaft of the DC motor 20, and a driven gear 24 connected to the drive gear 22 via a chain at a position spaced apart from the drive gear 22 by a predetermined distance. ) Is configured. In addition, the driven gear 24 is axially coupled by the power transmission shaft 28, the first pulley 26 is coupled to the same axis, and the rear end coupled to the same axis at the rear end ( 32). The mainspring 32 is configured for power storage of the present invention. Unlike the general storage battery, the mainspring 32 can be used semi-permanently, and its power storage efficiency is very high. In addition, when a plurality of the spring 32 is configured, more power can be stored.

On the other hand, the second pulley 30 is configured to be spaced apart from the first pulley 26 by a predetermined distance, and is provided with a second pulley 30 connected by the first pulley 26 and the belt 54. The generator 36 is provided on the axis of 30). The generator 36 is configured to operate the spring 32 and generate electric power by using the rotational force when the generated power input from the wind power generation module 6 is equal to or less than a reference value.

In addition, each of the power transmission shaft 28 or the motor shaft 42 is coupled to enable smooth rotation through the bearings 46, 48, 50 provided in the frame 38 or the support 50. It is done.

On the other hand, the driven gear 24 is coupled to the power transmission pipe 40 coupled to the outer periphery of the power transmission shaft 28, the power transmission shaft 28 is the power provided from the driven gear 24 Is transmitted to the power transmission shaft 28 in one direction, and vice versa, power provided from the power transmission pipe 40 is not transmitted to the power transmission shaft 28. This configuration is such that the power transmission shaft 28 does not act as a load on the power for driving the generator 36 through the power of the spring 32. Detailed description of the coupling structure (A) of the power transmission shaft 28 and the power transmission pipe 40 will be described later.

In addition, the winding detection sensor 56 is provided on the axis of the main winding 32, the winding detection sensor 56 is composed of a known photocoupler, and detects the rotational speed of the main winding 32 shaft. .

Therefore, the power compensator 12 compares the power value generated by the wind power generation module 6 with a reference value, and if the corresponding power value is larger than the reference value, inputs the corresponding power to a load (not shown). At the same time, the DC motor 20 is driven to store power.

That is, the rotational force generated by the driving of the DC motor 20 is transmitted to the drive gear 22 through the motor shaft 42, and through the chain 44 engaged with the drive gear 22. The rotational force of the drive gear 22 is transmitted to the driven gear 24. Since the driven gear 24 is axially coupled to the power transmission pipe 40, the power transmission pipe 40 is rotated, and the rotational force of the power transmission pipe 40 is coupled to the power transmission shaft 28. Is passed to.

Thereby, the rotational force transmitted to the power transmission shaft 28 rotates the spring 32 coupled on the same axis so that the spring can be wound. At this time, by detecting the rotation of the winding 32 shaft by the winding detecting sensor 56 provided on the lower part of the winding 32 shaft, the reference winding number is not changed any more than a predetermined number of times. It is set in advance so that the mainspring 32 is no longer wound.

Figure 4a, 4b is a view showing a blade coupling state of a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

Referring to this, the vertical blades 112 and 114 mounted to the rotating part 100 are the upper support plate 102 and the intermediate support 108, the intermediate support 108, as shown in the cross-sectional view shown in Figure 4a ) And the lower support plate 104 is coupled at an oblique angle along the circumference thereof. Thus, the wind can be rotated in any direction.

In addition, the horizontal blade 116 mounted on the upper surface of the intermediate support 108 and the lower support plate 104 of the rotating part 100, as shown in the perspective view of Figure 4b, the outer peripheral coupling of the rotating shaft 106 Since a certain angle is coupled to the outer periphery of the support member 116a to be oblique, respectively, as in the vertical blades 112 and 114, the wind may be rotated in any direction.

5 is a cross-sectional view showing a one-way rotation control member of a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

Referring to this, the rotating part 100 of the small wind turbine with a cylindrical blade according to an embodiment of the present invention is rotatable in response to the wind blowing from all directions (全 方向), the direction of the wind is changed from time to time In that case, the efficiency may decrease. Therefore, the rotation part 100 to minimize the wind loss by rotating in one direction.

To this end, the one-way rotation control member 130 is provided in the rotary unit 100 of the small wind turbine with a cylindrical blade according to an embodiment of the present invention, the one-way rotation control member 130 is the rotary shaft It is a structure which controls the 106 to be rotatable only in one direction.

In more detail, the one-way rotation control member 130 is composed of a rotating body 134 coupled to the outer periphery of the rotating shaft 106, a plurality of grooves are angled off the outer periphery of the rotating body 134 The leaf spring 140 is mounted inside the groove, and the switching protrusion 138 is rotatably coupled to one end of the leaf spring 140.

In addition, the support body 134 is provided therein, and a support ring 132 coupled to a frame (not shown) separate from the rotation shaft 106 is provided, and an inner circumference of the support ring 132 is provided. In the plurality of engaging projections 136 are formed at regular intervals. Therefore, when the rotation shaft 106 rotates in the counterclockwise direction, the switching protrusion 138 rotates while pressing the leaf spring 140 by the locking protrusion 136 formed on the inner circumference of the support ring 132. When the rotation shaft 106 rotates in the clockwise direction, the switching protrusion 138 is caught by the locking protrusion 136 formed on the inner circumference of the support ring 132, thereby making it impossible to rotate.

Figure 6 is a block diagram showing the circuit configuration of a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

Referring to this, the small wind turbine (2) having a cylindrical blade according to an embodiment of the present invention is a DC / DC converter 82 is configured to stabilize the output from the wind turbine module (6) . Since the output generated from the photovoltaic module 4 and the wind power module 6 is unstable, the present invention uses a step-up PID control converter to cope with input characteristics of high current and low voltage. Most of the voltage output from the DC / DC converter 82 is output 24 kHz.

In addition, the present invention is provided with an inverter 84 for converting the DC voltage passed through the DC / DC converter 82 into an alternating current, the direct current passed through the DC / DC converter 82 is an inverter 84 When passed through it is converted to AC 220 kV it can be used as a commercial power source of the load (86).

In addition, according to the present invention, the winding detection sensor 56 receives the detection signal of the winding water and generates a driving control signal to the solenoid 68 to control the winding and unwinding of the spring 32, and the DC / DC converter By receiving the converted voltage value from 82 and comparing and judging the corresponding voltage value and the reference value, it is determined whether to further generate power through the spring power storage unit 80 to store power in the spring power storage unit 80. The control unit 88 is provided to determine whether or not to control the operation of the spring power storage unit 80, the control unit 88 has a winding reference value of the main winding 32 and the DC / DC converter 82 A memory 90 that stores the applied reference voltage value is built in.

With reference to the accompanying drawings, the function and action of a small wind turbine with a cylindrical blade according to an embodiment of the present invention of the above configuration will be described in detail.

7a and 7b are flow charts showing the signal flow of a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

First, the small wind turbine (2) having a cylindrical blade according to an embodiment of the present invention, when the wind turbine module (6) starts to generate power by wind, the DC / DC converter ( 82 is received and transferred to the controller 88. Then, the controller 88 determines whether the corresponding voltage is greater than or equal to the reference voltage (eg, 24 kV). If the generated voltage is lower than the reference voltage, flow A proceeds.

On the other hand, if the generated voltage compared by the controller 88 is greater than or equal to the reference voltage, converting through the DC / DC converter 82, and converts the DC motor 20 using the corresponding power Drive it. At the same time, the power passing through the DC / DC converter 82 is inverted through the inverter 84 to be converted into an AC 220 kV voltage and used as a commercial power source for a load.

On the other hand, the power supplied to the DC motor 20 is converted into a rotational force by the drive of the DC motor 20, the rotational force is transmitted to the drive gear 22 coupled to the DC motor 20 shaft, The rotational force of the drive gear 22 is transmitted to the driven gear 24 via the chain 44 engaged with the drive gear 22. Since the driven gear 24 is axially coupled to the power transmission pipe 40, the power transmission pipe 40 is rotated, and the rotational force of the power transmission pipe 40 is coupled to the power transmission shaft 28. Is passed to.

Thereby, the rotational force transmitted to the power transmission shaft 28 rotates the spring 32 coupled on the same axis so that the spring can be wound. At this time, by detecting the rotation of the main winding 32 shaft by the winding detecting sensor 56 provided below the main winding 32 shaft, the controller 88 determines whether the winding number of the main winding 32 is greater than or equal to the reference winding number. Compare and judge. If the winding number of the main winding 32 is greater than or equal to the reference winding number, the controller 88 stops driving of the solenoid 68 so that the stopper 64 is coupled to the main winding 32 shaft. By being coupled to 70, the winding operation of the mainspring 32 is stopped.

At this time, the rotational force applied to the power transmission pipe 40 causes the power transmission pipe 40 to be rotated in the counterclockwise direction, whereby the engaging projection 72 formed on the inner circumference thereof is applied to the switching projection 74. So that power is transmitted to the power transmission shaft 28. Thus, the spring 32 coupled to the power transmission shaft 28 is wound.

On the other hand, when the corresponding voltage is lower than the reference voltage (for example, 24 kV) through temporary weather deterioration or the like, the controller 88 drives the solenoid 68 to loosen the spring 32. When the mainspring 32 is released, the first pulley 26 coupled with the main shaft is rotated, the rotational force is transmitted to the second pulley 30, and the rotational force of the second pulley 30 is received. The generator 36 is driven to generate power. The power is applied to the DC / DC converter 82 to be combined with the power generated from the wind power generation module 6, and the power passing through the DC / DC converter 82 is inverted through the inverter 84. It is converted into AC 220V and used as commercial power of the load.

Accordingly, the small wind power generator 2 having the cylindrical blade according to the embodiment of the present invention load-balances the wind power generating unstable power in a constant power and an overpower situation, and stores a part thereof by storing a portion thereof. It is possible to secure stable power by supplying the corresponding storage power at a time when low power is generated due to deterioration of the weather, and almost semi-permanent operation is possible by using a spring storage unit.

In addition, the small wind turbine (2) provided with a cylindrical blade according to an embodiment of the present invention is the rotary unit 100 is configured in a small size, having a cylindrical blade mounting structure blows in all directions (全 方向) It can produce the maximum efficiency at all times in response to the coming wind, and it is suitable for the region where the air volume is small and the direction of the wind is not constant, as in Korea because initial self-starting is very easy even in the minute wind.

In addition, the rotation unit 100 may generate a higher efficiency of power by constituting the horizontal blade 116 in addition to the vertical blades (112, 114).

On the other hand, the small wind turbine with a cylindrical blade according to an embodiment of the present invention is not limited only to the above embodiment is possible various modifications within the scope not departing from the technical gist.

As described above, the small wind turbine with a cylindrical blade according to the present invention has a rotating portion has a small size, and has a cylindrical blade mounting structure, so that the maximum efficiency at all times corresponding to the wind blowing from all directions It is possible to generate the power of the engine, and even the fine wind makes initial self-starting very easy, so it is suitable for the region where the air volume is small and the direction of the wind is not constant like Korea. The advantage is that higher efficiency power generation is possible.

1 is a perspective view showing the appearance of a small wind turbine with a cylindrical blade according to an embodiment of the present invention,

Figure 2 is a side cross-sectional view showing an auxiliary power storage unit of a small wind turbine with a cylindrical blade according to an embodiment of the present invention,

3 is a perspective view illustrating main parts of a cylindrical blade mounted to a small wind turbine having a cylindrical blade according to an embodiment of the present invention;

Figure 4a, 4b is a view showing a blade coupling state of a small wind turbine with a cylindrical blade according to an embodiment of the present invention,

5 is a plan sectional view showing a one-way rotation control member of a small wind turbine with a cylindrical blade according to an embodiment of the present invention;

Figure 6 is a block diagram showing the circuit configuration of a small wind turbine with a cylindrical blade according to an embodiment of the present invention,

7a and 7b are flow charts showing the signal flow of a small wind turbine with a cylindrical blade according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: rotation part, 102: upper support plate,

104: lower support plate, 106: rotating shaft,

108: middle support, 110: generator,

112, 114: vertical blade, 116: horizontal blade.

Claims (5)

A DC motor driven by receiving a corresponding generation power by a control signal when the power generated from the wind power generation module is input to a predetermined value or more; A drive gear coupled to the shaft of the DC motor; A driven gear connected to the drive gear via a chain at a position spaced apart from the drive gear by a predetermined distance; A power transmission pipe axially coupled to the driven gear; A power transmission shaft coupled to partially wrap the power transmission pipe on its outer circumference; A spring for storing power generation coupled to the same axis as the power transmission shaft; A first pulley configured on the same central axis of the power transmission shaft; A second pulley configured to be spaced apart from the first pulley by a predetermined distance and connected to the first pulley by a belt; A generator coupled to the axis of the second pulley and configured to generate a constant power by receiving a rotational force of the second pulley; By receiving the power values generated from the photovoltaic module and the wind power module, comparing and determining the corresponding power value and the reference value, a determination is made as to whether to further generate power through the mainspring, and it is determined whether to store power in the mainspring. An auxiliary power control unit is configured to control power storage and power compensation through the mainspring so that power is stored by loading some power as a load and some power as a spring during power generation, and further generating power through the generator during the low power generation. In the generator, The wind power generation module has a cylindrical blade having a hollow inside; The cylindrical blade is characterized in that the power generation is made in response to the wind blowing in all directions by further comprising a generator coupled to the same axis as the blade rotation axis to generate electric power Small wind turbines. According to claim 1, wherein said cylindrical blade is composed of an upper support plate and a lower support plate, respectively, at a predetermined length apart position; An intermediate support is formed between the upper support plate and the lower support plate; Both ends of the plurality of vertical blades arranged at regular intervals are respectively coupled to the upper support plate and the intermediate support, and the intermediate support and the lower support plate, and the rotating shaft is coupled through the center of the upper support plate, the intermediate support and the lower support plate. Small wind turbine with a cylindrical blade, characterized in that made of a one-way rotation control member for controlling the rotation axis to rotate in one direction. According to claim 2, The intermediate support is a small wind turbine with a cylindrical blade, characterized in that the diameter of the structure is larger than the upper and lower support plates. The small wind turbine of claim 2, wherein horizontal blades are coupled to upper surfaces of the intermediate support and the lower support plate, respectively, in four directions (east, west, south, and north). According to claim 1, wherein the one-way rotation control member is composed of a rotating body coupled to the outer periphery of the rotating shaft, a plurality of grooves are formed on the outer periphery of the rotating body, the leaf spring is formed inside the groove It is mounted, and one end of the leaf spring is rotatably coupled to the switching projection, there is provided a support ring which is embedded in the rotating body therein, and coupled to a frame separate from the rotating shaft, Small wind turbine with a cylindrical blade, characterized in that the inner rotation is formed by a plurality of locking projections at a predetermined interval to control the rotation axis to rotate in only one direction.