RU2329398C2 - Wind-energetic plant with vertical axis - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention is related to wind-energetic plant with vertical axis and system of wind energy generation and, in particular, to wind-energetic plant with vertical axis, which contains support frame; main vertical shaft, which is installed in support frame with the possibility of rotation; fixing element that is fastened to the main vertical shaft; support cantilever that is fastened to fixing element with one end; and blade that passes along vertical and is installed on the other end of support cantilever, at that blade has inclined part, which is created on the top and bottom ends, inclined inside at the angle from 30 to 45 degrees in respect to vertical axis of main shaft, at that blade width makes from 45 to 55% from blade orbit radius, when blade rotates around the main vertical shaft. Blade is installed vertically in multiple levels for creation of multiplicity of blades, every of which passes in different directions without overlapping by vertical so when looking from top they are distant substantially at the same angles. Plant may be installed in steel mast of high-voltage line.

EFFECT: increase of wind-receiving area with increased wind-receiving energy; low net cost and increase of total power generation in specific area.

5 cl, 12 dwg

Description

The present invention relates to a vertical axis wind turbine and, in particular, to a vertical axis wind turbine, which allows a series of sections for mounting a shaft with support frames to be formed in which a plurality of blades are mounted at multiple levels on a main vertical shaft to increase wind receiving speed, thereby providing an increase in the wind-receiving area and rotation efficiency at low installation costs and a large total generated amount electrically energy to a specific area.

A known vertical axis wind turbine for a wind generator, such as, for example, described in JP 2000-234582, comprises a plurality of vertical blades around a main vertical shaft. But when one of the blades is exposed to wind, the other is affected by turbulence, which reduces the rotation force, so that a small torque makes it impossible to use such a vertical-axis wind power plant. A vertical-axis wind turbine rotates at a high speed even with a weak wind, but a decrease in the number of blades leads to the use of a smaller wind-receiving area, while an increase in the number of blades seems to cause turbulence in the wind at a high speed.

Taking into account the disadvantages, the aim of the present invention is to provide a wind power installation with a vertical axis, suitable for a wind generator, and with a significantly increased wind receiving area relative to the installation area of the wind power installation, which allows the wind power installation to be smaller and lighter, thereby reducing cost.

According to the present invention, a vertical axis wind turbine is provided comprising a support frame; the main vertical shaft mounted rotatably on the support frame; a fastener mounted on a main vertical shaft; a support console attached at one end to the fastener and a vertically extending blade mounted on the other end of the support console, the blade having an inclined portion formed at the upper and lower ends, inclined inwardly at an angle of 30 to 45 degrees with respect to the vertical axis of the main shaft, and the blade width is from 45 to 55% of the radius of the orbit of the blade when the blade rotates around the main vertical shaft.

Preferably, the blade mounted on the support console is mounted vertically in a plurality of levels to form a plurality of blades, each of which extends in different directions without overlapping vertically so that they are spaced substantially at equal angles when viewed from above.

Advantageously, the blade is arranged vertically in a plurality of levels.

The installation can be installed in a steel mast of a high voltage power line.

Preferably, a pair of blades is mounted on a main vertical shaft, with one of the blades being closer to the shaft and being longer, while the other of the blades is located farther from the shaft and is shorter.

These and other distinguishing features and advantages of the present invention will be better understood from the following description of embodiments of the present invention, illustrated in the accompanying drawings, in which:

figure 1 is a front view in section of a first embodiment of a vertical axis wind power plant in accordance with the present invention;

figure 2 is a top view of a first embodiment of a vertical axis wind power plant in accordance with the present invention;

figure 3 is a combined top and front view showing a blade in accordance with the present invention;

4 is a front view in section of a second embodiment of a vertical axis wind power plant in accordance with the present invention;

5 is a top view of a second embodiment of a vertical axis wind power plant in accordance with the present invention;

6 is a top view showing the shape of the blade of a wind turbine with a vertical axis;

7 is a front view in section of a third embodiment of a vertical axis wind turbine in accordance with the present invention;

Fig. 8 is a front cross-sectional view of a fourth embodiment of a vertical axis wind turbine in accordance with the present invention;

Fig.9 is a top view of a fifth embodiment of a vertical axis wind turbine in accordance with the present invention;

10 is a front cross-sectional view of a sixth embodiment of a vertical axis wind turbine in accordance with the present invention;

11 is a top view of a seventh embodiment of a vertical axis wind turbine in accordance with the present invention; and

12 is a front cross-sectional view of an eighth embodiment of a vertical axis wind power plant in accordance with the present invention.

Embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 1 shows a front sectional view of a first embodiment of a vertical axis wind turbine, and figure 2 shows a top view of the blades of a vertical axis wind turbine. In the support frame 4, intermediate mounting brackets and diagonal struts are not shown. The supporting frame 4 is mounted on a concrete foundation "B".

As shown in figure 1, the wind turbine 1 with a vertical axis has a section 4A for mounting the shaft in a rectangular support frame 4, containing many supports 2 and mounting brackets 3.

The vertical shaft 5 of the shaft mounting section 4a is arranged vertically and rotatably supported by the upper and lower bearings 6. The support 2 comprises a tube, an L-shaped element, an H-shaped element and a U-shaped element. In this case, many short elements can be attached.

The base 7 in figure 1 contains a box in which a bearing (not shown) supports the lower end of the main vertical shaft 5. At the base 7, a generator (not shown) can be connected to the main vertical shaft 5 through a transmitting device so that the entire supporting frame 4 plays the role of a wind generator.

According to figure 1, the main vertical shaft 5 has a height of, for example, 7 m, and its outer surface is covered by a reinforcing element 5A, with the exception of the vicinity of the bearings. The reinforcing element 5a is made of fiberglass, aluminum, or a combination thereof.

In the reinforcing element 5a, the fastening elements 8 are closed to increase the weather resistance of the support arms 9a-9d. The joining of the shapes of the reinforcing elements 5a is filled with fiber resin and cured so that the shapes can be joined.

A plurality of fasteners 8 are mounted on the main vertical shaft 5. The fastener 8 is annular and sliding on the main vertical shaft 5. The fastener 8 may consist of two halves that are pressed against the shaft 5 and fixed with screws. The fastening elements 8 can be used as flywheels to maintain the inertia of rotation of the wind power installation.

A pair of upper and lower fasteners 8 is located at the same distance as four nodes, as shown in figure 1. On each one pair of fasteners 8, the upper and lower support arms 9 are arranged in parallel in the vertical direction and are fixed to the fasteners 8 with screws. The vertical distance between the upper and lower support consoles 9 is determined by the height of the blade 10. If the three support consoles 9 are spaced apart from each other vertically, then the three fasteners 8 are spaced apart from each other vertically in the form of a single assembly.

The directions of the support consoles differ from each other in each node. As shown in FIG. 2, the uppermost support console 9a extends forward, while the second level support console 9b extends at right angles to it.

The support console 9c of the third level extends further at right angles, while the fourth support console 9d extends further at right angles from it. The direction of rotation can be clockwise or counterclockwise.

The total angles from the uppermost support console 9a to the lowest support console 9d are 360 degrees, and as shown in FIG. 2, each of the support consoles 9a-9d are equally spaced at right angles.

In figure 1, on the outer end surfaces of each node of the support consoles 9a-9d, the vertical blade 10 is fixed by means of an inner surface opposite the main vertical shaft 5. The support consoles 9a-9d are attached to the blades 10 by screws, and the connection or fastening by fiber depends on the size and the weight of the blade 10.

The support arms 9 have sufficient rigidity to support the blades 10 and shapes that are not affected by wind resistance. The support consoles 9a-9d are made, for example, of fiber plates.

For example, a blade has a height of 100-180 cm and a thickness of 4-6 cm. The length of the truss belt varies depending on the radius of the orbit and the number of blades. The length of the belt of the truss of one blade is determined within the range of 50-65% of the radius.

The upper and lower end surfaces of the blade 10 are inclined to form inclined parts 10a. If the angle of the inclined part 10a is greater than 45 degrees, then air turbulence is likely to occur, whereas if it is too small, the wind energy recovery rate decreases. Thus, a suitable angle is an angle of 30-45 degrees. If the inclined portion 10a is too long, then it probably becomes strong and, preferably, can be less than 10% of the length of the blade.

As the blade 10 rotates, air rotates with the side surface of the blade 10 due to the viscosity of the fluid. As a result, the wind, which penetrates the path of rotation of the blade 10, passes in the vertical direction and has less resistance on the surface of the blade. When the inclined parts 10a are formed inwardly on the upper and lower end surfaces of the blade 10, the air flow that tends to pass inward and downward is suppressed by the inclined parts 10a to increase air pressure, thereby pushing the blade 10 in the direction of rotation. In this case, the rotation efficiency of the blade 10 having inclined parts 10a is increased by 10-40% compared to that which does not have inclined parts, as described below.

In the blade 10 in accordance with the present invention, the truss belt length or width is very large. Since the inclined parts 10a are formed on the upper and lower end surfaces of the blade 10, it is clear that the blade 10 achieves an ideal amount of rotation compared to a simple straight vertical blade, despite the large length of the truss belt.

3 is a schematic view including a plan view indicated by solid lines and a front view indicated by imaginary lines.

The outer surface of the blade 10 contains a curved surface along the trajectory "T" of rotation. Thus, during rotation of the wind turbine 1 with a vertical axis, the outer surface of the blade 10 moves along the curve of the surface of rotation to reduce the loss of wind resistance in the radial part of the blade.

The protrusion 10b is formed on the inner surface of the blade 10. Thus, during rotation, the rear end of the inner surface of the blade 10 rotates outside the trajectory "Ta" of the protrusion of the protrusion 10b, and accordingly, the wind that passes along the inner surface of the blade 10 passes back to the outer side of the trajectory " That "rotation of the protrusion 10b.

Thus, when the headwind collides with the front surface of the blade 10 (see figure 3), it pushes the rear end of the inner surface of the blade 10.

Since the protrusion 10b is formed on the inner surface of the blade 10, the speed of the wind that runs along the outer surface of the blade 10 is higher than the speed of the wind that runs along the inner surface. Wind at a higher speed makes the air more rarefied to form negative pressure or rarefaction, so that the blade 10 is pressed inward and forward from the outside to create a reaction that provides a self-rotating force.

As shown in FIG. 3, a wind that collides with the inner surface of the rotating blade 10 from the left front side and extends vertically collides with the inclined portion 10a of the blade 10. Since the rotation path "Tb" is located on the inside of the rotation path "Ta" 10b, the wind flow that passes back over the protrusion 10b does not spread up and down, but flows back at high speed, while it is pressured by the upper and lower inclined parts 10a and high pressure is created, manner, pushing the rear side of the inner surface of the blade 10 to form a rotational force.

In the side view of Fig. 3, the arrow "A", which is directed to the left side surface of the inclined part 10a, is repelled in the direction of the arrow "a". In the top view of FIG. 3, the wind indicated by arrow “B” is repelled in the direction of arrow “b”. The repulsive wind affects the force of rotation of the blade as a reverse action.

As shown in FIG. 3, the length of the truss belt of the blade 10 is up to 50% of the radius of the orbit. However, the outer surface of the blade 10 is on a circular surface along a rotation path “T”. Thus, despite the protrusion 10b on the inner surface of the blade 10 has a thickness of about 7% of the radius of rotation. The thinner the blade, the lower the rotation resistance.

In a wind turbine installation 1 with a vertical axis, as constructed above, the blade 10 has a length of 1 m. But the four levels of a single blade are located around the main vertical shaft 5 with a height of 7 m, so that the four-bladed wind turbine with vertical axis has a wide wind-receiving area and provides high torque during rotation.

At each level, the blade 10 is single in order to avoid wind resistance on the opposite side of the same level and increase rotation efficiency. Despite the wind, which instantly changes direction, the blade 10 at each level changes direction at right angles to ensure smooth rotation of the shaft with constant wind energy like a four-cylinder car engine and achieve powerful torque.

A single blade 10 is located on a single main vertical shaft 5 at each of a plurality of levels at fixed angles to ensure stable equilibrium during rotation of the main vertical shaft.

In multi-level blades around a single main vertical shaft 5, the power factor is not equal to the value multiplied by the number of levels, but more than that, which is confirmed. The lifting force of the four-level blades is four times greater than the lifting force of a single blade, the active load on the blade 10 is reduced to a unit divided by the number of levels to increase the rotation efficiency and increase the speed of rotation of the blade 10, thereby increasing the power factor.

In the first embodiment, the blades 10 are located at four levels, but the three main vertical shafts 5 can be connected vertically to form twelve levels of the blades 10.

By shortening the main vertical shaft 5, the blades 10 can be located at three or six levels. The blade 10 may be longer or shorter.

Figure 4 shows a front view in vertical section of a second embodiment of a vertical axis wind turbine in accordance with the present invention, and Figure 5 shows a top view. The same reference numbers are used for the same elements as described above, and their description is omitted. Intermediate mounting brackets or diagonal struts are not included in the support frame of FIGS. 4 and 5.

As shown in FIG. 4, the main vertical shaft 5 is supported by a plurality of intermediate bearings 66, each of which is fixed by means of a mounting bracket 3 between the supports 2. Thus, the main vertical shaft 5 can resist whole bending, making the main metal vertical shaft thinner and lighter, as long as it can withstand shear load.

According to figure 4, the main vertical shaft 5 is located between the two blades 10. If the radius of the orbit of the blade 10 is 1 m, then, preferably, the belt length of the truss of the blade 10 can be from 40 to 55% of the radius.

Support consoles 9a-9d are located in the same orbit. During rotation, the two blades 10 at the same level have a stable equilibrium to increase the equilibrium of rotation for the entire wind power installation 1.

As shown in FIG. 5, the uppermost support consoles 9a are located on each side of the shaft 5. The support console 9b at the second level is shifted at an angle of 72 degrees in the direction of rotation, as shown by arrow “A”. The support console 9a at the third level is further shifted by 72 degrees. The support arms at the fourth and fifth levels 9d, 9e are shifted by 72 degrees in the direction of rotation.

Thus, the support arms 9a-9e are located in the direction of rotation through 36 degrees in the sequence 9a, 9d, 9b, 9e, 9c, 9a, 9d, 9c, as shown in FIG.

In the second embodiment, the two blades are located at five levels and the total number of blades is equal to ten to increase the wind-receiving area, which leads to a more powerful torque. In particular, the wind-receiving area of the five levels of the wind power installation 1 is five times greater than the wind-receiving area of a single-level wind power installation, and the generation of wind energy increases in proportion to the area of the blade 10 times the wind speed and cubed.

Figure 6 shows a top view of two blades of a wind turbine with a vertical axis. The same reference numbers are used for the same parts and elements, and their description is omitted.

Wind turbine 1 with a vertical axis is made for testing in a wind tunnel, and the radius of the orbit of the blades 10 is 40 cm, the height is 80 cm and the length of the truss belt is 20 cm.

The outer surface of the blade 10 moves along the orbit of rotation "T". The protrusion 10b is formed on the inner surface of the blade 10, and the inclined parts 10a are formed on the upper and lower end surfaces of the blade 10.

Tests in a wind tunnel are carried out on the basis of the rotation characteristics of the wind power installation 1.

Date: July 26, 2004, cloudy, 32-34 ° C

Wind tunnel device owned by the Institute of Technology of the city of Asikaga

Open type, injection hole: 1.04 m × 1.04 m, wind tunnel with variable wind speed

Wind speed measurement: Betz pressure gauge and pitot tube

Test wind speed: 4, 6, 8, 10, 12, 14 m / s

Straight blade: 13, 16, 20, 23 cm as truss belt length

Bellshion type blade: only 20 cm as truss belt length

Torque test: an inverter-type motor device belonging to the graduate course of the Usiyama Institute of Technology in Asikaga.

When testing in a wind tunnel of a straight blade that does not have inclined parts, the following results of the "Ср" efficiency of a wind power installation are obtained.

Truss belt length Wind speed Cp Wind speed Wed 13 cm 4 m / s 0.06 14 m / s 0.26 16 four 0.05 fourteen 0.27 twenty four 0.17 fourteen 0.28 23 four 0.10 fourteen 0.29

Based on the test results, a blade with a truss belt length of 23 cm is excellent for the Cp efficiency of a wind turbine when the wind speed is high at 14 m / s, but unsatisfactory when the wind speed is low at 4 m / s.

On the contrary, a blade with a truss belt length of 20 cm or 50% of the orbit radius ensures the efficiency of the 0.17 wind power plant, despite the low wind speed of 4 m / s, which is significantly better than others.

On blades of the Bellshion type, having inclined parts on the upper and lower end surfaces and a truss belt length of 20 cm, wind tunnel tests were carried out and the results are shown below.

Truss belt length Wind speed Wed 20 cm 4 m / s 0.25 8 0.27 12 0.30 fourteen 0.32

Based on the results of tests in a wind tunnel, comparing the blade 10 in accordance with the present invention with a conventional straight blade, the blade 10 in accordance with the present invention has a truss belt length of 20 cm and corresponding to 50% of the orbit radius, but provides more than 0.25 efficiency "Cp" of a wind power plant at a low wind speed of 4 m / s compared to the efficiency of a wind power plant of 0.17 straight blades having a truss belt length of 20 cm at a wind speed of 4 m / s, which It provides a good performance.

In particular, in the case of the same length of the truss belt, the blade 10 in accordance with the present invention achieves an efficiency higher by 47% at a low wind speed of 4 m / s and by 14% at a high wind speed of 14 m / s than straight blades.

The numerical values of the tests show that the wind turbine 1 with a vertical axis differs slightly in rotation efficiency from the area with low wind speed to the area with high wind speed and constantly.

In particular, a wind generator is disadvantageous if the wind with a speed of more than 4 m / s does not blow for more than 2000 hours per year. In each area where there are many days of the year, during which the wind does not blow at high speed, the wind turbine 1 with a vertical axis having Cp = 0.25 at a wind speed of 4 m / s in this invention is suitable for generating wind energy.

When tested in a wind tunnel, it becomes clear that the efficiency of the Cp wind power plant is especially low in the area with low speed, whether the length of the belt truss of the blade 10 is shorter or longer than the width corresponding to 50% of the radius of the orbit. Thus, it is confirmed that the belt length of the truss of the blade 10 in two blades, preferably, can vary from 45% to 55%. However, depending on the size, quantity, average wind speed in a particular place, etc. the length of the truss belt can be from 40 to 60% of the radius of the orbit.

7 shows a front view in vertical section of a third embodiment of a vertical axis wind turbine in accordance with the present invention. The same reference numerals refer to the same elements, as in the indicated embodiments, and their description is omitted. Intermediate mounting brackets and diagonal struts are not shown in the supporting frame 4 of Fig.7.

In the vertical axis wind turbine 1 in the third embodiment of the invention, the steel mast for the high voltage power line "L" is used as it exists. Electricity generated by a power generator (not shown) in the base 7 is stored in the electrical collector 11, converted by a transformer 12, and accumulated via an “L” power line. Thus, investment is saved, and the generation of electricity in remote areas and the accumulation of electricity are provided. As shown, the orbit radius of the blade 10 varies depending on each of the vertical levels.

FIG. 8 is a front elevational view of a fourth embodiment of a vertical axis wind turbine in accordance with the present invention. The same reference numerals refer to the same elements, as in the indicated embodiments, and their description is omitted. Intermediate mounting brackets and diagonal struts are not shown in the support frame of FIG. An electric collector, a transformer, an automatic control device, a rotational speed sensor or a brake device are not shown.

In the fourth embodiment, the plurality of shaft mounting sections are arranged horizontally in the support frame 4 and the main vertical shaft 5 is located in each of the shaft mounting sections 4a, so that the plurality of main vertical shafts 5 are located in the single supporting frame 4. FIG. 8 shows two sections, but can be located continuously ten or twelve sections in the horizontal direction.

A plurality of shaft mounting sections 4a are formed in a single support frame 4, and a main vertical shaft 5 is located in each of the shaft mounting sections 4a. Many blades 10 are mounted on each of the main vertical shafts 5, although adjacent blades 10 are different in direction to ensure uniform passage of the wind flow, thereby reducing the interaction of the air flow caused by adjacent blades during rotation.

The main vertical shafts 5 in the fourth embodiment, designed in this way, ensure the operation of the entire support frame 4 as a power generator. As a result, each of the main vertical shafts 5 provides rotation of the generator (not shown) in the base 7 and the generation of electricity that is accumulated for the implementation of the high-volume generator using a single support frame 4.

The blades 10 in this embodiment may comprise two blades of FIG. 4. As shown in FIG. 4, the main vertical shaft 5 can be supported by intermediate bearings 66.

The shaft mounting sections 4a are continuously arranged side by side, and the number of levels of the blades 10 can vary and be, for example, five, four, three and five levels. This is suitable when installation is carried out on uneven sites.

Figure 9 shows a top view of a fifth embodiment of a vertical axis wind turbine in accordance with the present invention. The same reference numerals refer to the same elements, as in the indicated embodiments, and their description is omitted. Intermediate mounting brackets and diagonal struts are not shown in the supporting frame 4 of Fig.9.

The vertical axis wind turbine 1 in the fifth embodiment comprises a Y-shaped support frame. Shown are twelve sections 4a for mounting the shaft, but ten or fifty sections can be continuous in one direction. Depending on the shape of the surface, the number of sections 4a is increased in length in one direction, but reduced in the other direction. In addition, in one direction, the shaft mounting sections 4a can be moved back and forth.

10 is a front elevational view of a sixth embodiment of a vertical axis wind turbine. The same reference numerals refer to the same elements, and their description is omitted. In the support frame of FIG. 10, intermediate mounting brackets and diagonal struts are not shown.

In a sixth embodiment, the support arms 9 for the blades 10 are different in length, and a remote blade 10A and a proximal blade 10B are provided. The ratio of the longer support console 9A to the shorter console 9B is 2: 1 as a maximum. 10, the remote blades 10A and the proximal blades 10B are located at two levels, and the longer and shorter support arms 9A, 9B are straight. In the case of four levels, the longer and shorter support arms 9A, 9B are spaced apart at right angles.

As shown in FIG. 10, the remote blade 10A is shorter, while the proximal blade 10 V is longer. The ratio of the shorter support console 9B to the longer support console 9A is 1: 2. The longer support arm 9A has a length of 100 cm and the shorter support arm 9B has a length of 50 cm. The remote blade 10A has a length of 100 cm and the proximal blade of 10 V has a length of 200 cm, so that wind areas are the same.

The remote blade 10A and the proximal blade 10B do not pass through the same rotation path during rotation and are unlikely to be affected by turbulence during rotation. These embodiments are larger in wind-receiving area than a single blade of one level, therefore, the advantage of a single blade is enhanced by the advantage of two blades.

11 shows a top view of a seventh embodiment of a vertical axis wind turbine in accordance with the present invention. The same reference numerals refer to the same elements, and their description is omitted. In the supporting frame 4 of FIG. 11, intermediate mounting brackets and diagonal struts are not shown.

In the seventh embodiment, the longer support arm 9A is located across the shorter support arm 9B, and two remote blades 10A and two proximal blades 10B are mounted on the longer support arm 9A and the shorter support arm 9B, respectively. 11, the support console 9A for the remote blades 10A is mounted on the upper surface of the fastener 8, while the support console 9B for the two proximal blades 10B is mounted on the lower surface of the fastener 8. However, the longer and shorter support consoles 9A and 9B both can be mounted on the upper surface of the fastener 8. The blades 10 can be located on a single main vertical shaft 5 at a variety of levels similar to other embodiments of the invention.

12 is a front elevational view of an eighth embodiment of a vertical axis wind turbine in accordance with the present invention. The same reference numerals refer to the same elements, as in the indicated embodiments, and their description is omitted. 12, intermediate mounting brackets and diagonal struts are not shown.

In the eighth embodiment, the three blades are located at four levels. The length of the truss belt of the blade 10 is preferably 40-45% of the radius of the orbit, which is less than the length of the truss belt of the two blades. The blades 10 deviate from the blades at the next level by 30 or 60 degrees. A power generator 13 is located at each level to generate electricity when the main vertical shaft 5 rotates through the transmission device 14. An automatic coupling device or an automatic load switch (not shown) are located in each of the generators 13. A bearing, a transmission device, a rotation speed sensor, are provided a control device, an automatic brake and an engine for providing rotation (not shown).

The rotational speed sensor detects the rotational speed of the main vertical shaft 5 to control the corresponding equipment using an automatic control device based on the registered value. A wind speed of less than 4 m / s activates an automatic coupling device for opening and closing at each level a specific wind speed. Thus, the automatic coupling device is opened in four generators 13 to provide the number of generators 13 from one to three to which the rotation force of the main vertical shaft 5 is not transmitted, thus, rotating the main vertical shaft with a load corresponding to a low wind speed, to implement generating electricity suitable for low wind speeds.

When starting at low wind speed, only one of the generators 13 connected to the main vertical axis 5 is turned on, and the connected generators 13 begin to turn on one after another with increasing wind speed. Therefore, only one generator can be installed, which is inferior to the others in the volume of electricity generation.

During idleness, an engine for providing rotation (not shown) is driven by an automatic control device to provide starting force for a wind turbine 1 with a vertical axis. During the typhoon, an automatic brake is activated. An automatic brake may be an electrical load device, rather than a mechanical device. The automatic load transfer device may be an opening / closing switching device consisting of a plurality of batteries and an electromagnetic coil. For example, if the typhoon’s speed exceeds a predetermined wind speed, the switch will open using an automatic control device based on the recorded value in the anemometer and become a load that prevents the generation of electricity at this speed, so that the wind power installation stops working.

Regarding the control of the automatic load switch in the generator 13 in this embodiment, another embodiment may be applied.

The power generator is connected to the main vertical shaft of the wind power plant to form a wind generator. In particular, the support frame is made of light supports for passing in the horizontal direction, thereby increasing the height, preventing loss of stability and creating a large volume wind generator, consisting of a number of small wind power plants.

The foregoing applies only to embodiments of the present invention. Various modifications and changes may be made by those skilled in the art without departing from the scope of the present invention defined in the claims.

Claims (9)

1. Wind turbine with a vertical axis, containing a support frame; the main vertical shaft mounted rotatably on the support frame; a fastener mounted on a main vertical shaft; a support console attached at one end to the fastener; and a vertically extending blade mounted on the other end of the support console, the blade having an inclined portion formed at the upper and lower ends, inclined inwardly at an angle of 30 to 45 ° with respect to the vertical axis of the main shaft, the blade being between 45 up to 55% of the radius of the orbit of the blade when the blade rotates around the main vertical shaft. 2. The installation according to claim 1, in which the blade mounted on the support console is mounted vertically in a plurality of levels to form a plurality of blades, each of which extends in different directions without overlapping vertically so that they are spaced essentially equal angles when viewed from above. 3. The installation according to claim 1, in which the blade is located vertically in many levels. 4. Installation according to claim 1, installed in a steel mast of a high-voltage power line. 5. Installation according to claim 1, in which a pair of blades is mounted on the main vertical shaft, one of the blades being located closer to the shaft and is longer, while the other of the blades is located further from the shaft and is shorter. Priorities: 10/22/2003 - paragraph 5; 01/26/2004 - paragraphs 3, 4; 06/30/2004 - Clause 2; 10/20/2004 - p.1.

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