TWI704281B - Wind power plant - Google Patents

Abstract

A wind power generation device is mainly provided with a support shaft in the tower of the wind generator, and at least an upper vertical shaft blade and a lower vertical shaft blade arranged in the upper and lower positions are pivotally connected to the support shaft located in the tower , The peripheral wall of the tower corresponds to the two upper and lower vertical axis blades, and there is a windward opening. The lateral wind can enter the tower through the windward opening and push the upper and lower vertical axis blades to rotate. The rotation direction of the vertical axis blades is configured to rotate in reverse to balance the rotational torsion of the upper and lower vertical axis blades, and the upper and lower vertical axis blades rotate to output power and connect with the generator unit to generate electricity.

Description

Wind power plant

The present invention is a wind power generation device, especially one that can increase the output power and cost effectiveness (CP value) of wind power generation.

According to this, wind turbines are classified according to the direction of the rotation axis, and are roughly divided into vertical axis wind turbines 5 (Figure 1) and horizontal axis wind turbines 6 (Figure 2). The structure of the wind generator mainly consists of three parts: tower, blade, and generator. Among them, the space and structural functions of the tower are only used to support one kind of blades and generators, and it is a pity that it has not been used for other purposes.

The inventor believes that the space, structure, and configuration occupied by the tower have room for other functions to increase the output power of the power generation. Therefore, the improvement was made, and the present invention was born.

The main purpose of the present invention is to change the structural design of the tower, the use of space and its aerodynamic functions, as well as the design, configuration and system combination of blades and power generation devices to increase the power output of wind turbines and Cost-effectiveness.

The main feature of the present invention is that a support shaft is provided in the tower of the wind power generator, and the support shaft located in the tower is pivotally connected with at least an upper vertical shaft blade and a lower vertical shaft blade arranged in the upper and lower sides. , The peripheral wall of the tower corresponds to the two upper and lower vertical axis blades, and there is a windward opening. The lateral wind can enter the tower through the windward opening and push the upper and lower vertical axis blades to rotate; The rotation direction of the vertical axis blades is configured to rotate in opposite directions to balance the rotational torsion forces of the upper and lower vertical axis blades, and the upper and lower vertical axis blades are connected with the generator unit through rotation output power energy to generate electricity. borrow With this arrangement, in addition to a wind blade and generator originally supported by the tower described in the prior art, multiple blades and generators can be installed, and the aerodynamic design in the tower can be used to increase the overall power generation effect.

Regarding the technical means and structure adopted by the present invention to achieve the above-mentioned objectives and effects, the following embodiments are provided with illustrations, and the description is as follows.

Learning part

5: Vertical axis wind turbine

6: Horizontal axis wind turbine

Part of the invention

1: Vertical axis wind turbine

2: Tower

10a, 10b: rotating blade

2: Tower

20: bare empty space

21: Column

22: Zhou wall

23: Support shaft

220: Downwind

24a: upper vertical axis blade

24b: Lower vertical axis blade

25a, 25b: auxiliary blade

26: windward

221: The wind board

27, 27a: induction of the stator magnetic field

270, 270a: metal plate

271, 271a, 271b: Excitation coil

271c: Magnet

28a, 28b: axial flow blade

29a, 29b, 29c, 29d: rotor magnetic field

28c: Upper axial flow blade

28d: Lower axial flow blade

28e, 28f: auxiliary axial flow blade

3: Horizontal axis wind turbine

4: Unicom tube

Figure 1 shows the appearance of a conventional vertical axis wind turbine.

Figure 2 shows the appearance of a conventional horizontal axis wind turbine.

Fig. 3 is a perspective view of the structure of the embodiment of the present invention applied to a vertical axis wind power generator (the tower part is too long and the part is broken).

Figure 4 shows a partial enlarged view of Figure 3.

Fig. 5 is a cross-sectional view of the structure of an embodiment of the present invention applied to a vertical axis wind power generator.

Figure 6 is a partial enlarged view of Figure 5.

FIG. 7 is a cross-sectional view taken along the line 7s-7s in FIG.

Fig. 8 is a top view of Fig. 6.

Fig. 9 is a perspective view of the structure of an embodiment of the present invention applied to a horizontal axis wind power generator.

Fig. 10 is a structural diagram of the vertical axis wind power generator and the horizontal axis wind power generator of the embodiment of the present invention that are connected and communicated with each other by a connecting pipe.

Fig. 11 is a structural diagram of the towers of a horizontal-axis wind turbine and multiple vertical-axis wind turbines connected by connecting pipes in an embodiment of the present invention.

Fig. 12 shows another structure diagram for inducing the magnetic field of the stator according to the embodiment of the present invention.

Please refer to FIGS. 3 to 8, which are structural diagrams of the embodiment of the present invention applied to the vertical axis wind power generator 1. The vertical axis wind power generator 1 includes a tower 2 which is hollow; a pair of upper and lower rotating blades 10a, 10b supported above the top of the tower 2, and the two rotating blades 10a, 10b can be used naturally. The wind drives the rotation, and is connected to a generator (not shown in the figure) to generate electricity.

The main improvement of the present invention is that the tower 2 is a hollow column with a bare space 20 inside. The outer circumference of the tower 2 is surrounded by a plurality of supporting columns 21, the side walls of the uprights 21 are connected with the peripheral wall 22 of the tower 2, thereby enhancing the structural strength of the tower 2, and thereby reducing the structure of the tower 2 The material of the peripheral wall 22 is required to reduce the cost. An immovable support shaft 23 is arranged inside the bare space 20. The top end of the support shaft 23 protrudes from the top port of the tower 2 to pivotally connect the aforementioned rotating blades 10a, 10b. The peripheral wall 22 at the bottom end of the tower 2 is equipped with a plurality of closed or openable down vents 220 to increase the aerodynamic energy inside the tower 2, and the bottom peripheral wall 22 of the tower 2 is transparent, In order to heat the air in the tower 2, the hot air located below the tower 2 can enter the tower 2 through the down-air outlet 220 by the principle of hot air upwards, so that the hot air moves upwards with a chimney effect ; Or the air in the tower 2 is driven down by power through the selection, and is transmitted to another tower 2 through the downflow port 220 for application.

On the support shaft 23 located at the inner top end of the tower 2, at least two upper and lower vertical shaft blades 24a and a lower vertical shaft blade 24b (as shown in Figures 3 and 4) are pivotally connected. The inside of the shaft blades 24a, 24b is equipped with a half-barrel auxiliary blade 25a, 25b that is linked with the corresponding vertical shaft blades 24a, 24b. The half-barrel auxiliary blades 25a, 25b can handle more lateral wind It assists in starting the rotation of the upper and lower vertical shaft blades 24a, 24b and guides the airflow. The rotation directions of the upper and lower vertical shaft blades 24a, 24b are configured to rotate oppositely to balance the rotational torque of the two, and the rotational kinetic energy of the upper and lower vertical shaft blades 24a, 24b can be connected by a gear mechanism respectively. Generators generate electricity individually. To increase the up and down The rotation speed of the vertical axis blades 24a, 24b, the shape of the upper and lower vertical axis blades 24a, 24b, in terms of design, can also have the effect of being driven by the wind from the tower 2 moving upwards in the chimney effect. .

The peripheral wall 22 of the tower 2 corresponds to the upper and lower vertical shaft blades 24a, 24b, and a windward opening 26 is provided (as shown in FIG. 7, at least one windward opening, in this embodiment, there are multiple windward openings). Naturally flowing wind outside 2 can enter the tower 2 through the windward openings 26, and push the upper and lower vertical shaft blades 24a, 24b and the two auxiliary blades 25a, 25b to rotate. In order to increase the amount of wind blowing, the two sides of the peripheral wall 22 corresponding to the windward opening 26 are equipped with wind blowing plates 221 inclined toward the outside of the tower 2, as shown in FIG. 7.

Between the upper and lower adjacent upper and lower vertical shaft blades 24a, 24b, an induced stator magnetic field 27 arranged horizontally is fixed in the tower 2 and the induced stator magnetic field 27 includes a grid hole-shaped metal plate 270 And composed of an excitation coil 271 wound on the metal plate 27) (as shown in FIG. 4). The outer circle of the metal plate 270 is supported and positioned by the inner wall of the tower 2. The end faces of the upper and lower vertical shaft blades 24a, 24b facing the inductive stator magnetic field 27 are respectively provided with axial flow blades 28a, 28b (that is, axial flow blades 28a, 28b) that rotate with the upper and lower vertical shaft blades 24a, 24b. When 28b rotates, it can drive the wind in the bare space 20 of the tower 2 to flow in the axial direction. The two axial flow blades 28a, 28b rotate with the attached vertical shaft blades 24a, 24b. Although the rotation directions of the two axial flow blades 28a and 28b are opposite, the angle of the blades is designed to make the direction of pushing the wind force consistent (for example, the wind direction is consistent upward). The two axial flow blades 28a, 28b are magnetized to form a rotor magnetic field 29a, 29b. The inductive stator magnetic field 27 and the two rotor magnetic fields 29a, 29b are opposed to each other through the rotation of the rotor magnetic field 29a, 29b. The stator magnetic field 27 induces each other, magnetically cuts and generates electricity. The power generation function increases the power generated by rotating the two rotor magnetic fields 29a, 29b in opposite directions. Furthermore, the top end of the upper vertical shaft blade 24a is provided with an upper axial flow blade 28c which is co-rotated with the upper vertical shaft blade 24a; The bottom end of the shaft blade 24b is provided with a lower axial flow blade 28d which is co-moved with the lower vertical shaft blade 24b. The upper axial flow blade 28c and the lower axial flow blade 28d are arranged to increase the push of the axial flow in the tower 2 .

Located below the supporting shaft 12 in the bare empty space 20, two auxiliary axial flow blades 28e, 28f (as shown in Figs. 3 and 5) arranged separately from the upper and lower sides are pivotally connected, and the two auxiliary axial flow blades 28e, 28f Like the aforementioned two axial flow blades 28a, 28b, the blade angles of the two auxiliary axial flow blades 28e, 28f are designed to turn in opposite directions when receiving the axial flow, so that the rotational torque of the two is balanced, the wind direction is the same, and the blades are magnetized to A rotor magnetic field 29c, 29d is formed; an induced stator magnetic field 27a is arranged between the two auxiliary axial flow blades 28e, 28f. The induced stator magnetic field 27a is the same as the above-mentioned induced stator magnetic field 27, and consists of a grid hole-shaped metal plate 270a and It is composed of an excitation coil 271a wound on the metal plate 270a. Through the rotation of the rotor magnetic field 29c, 29d, it interacts with the induction stator magnetic field 27a, magnetically cuts and generates electricity; and the rotation direction of the rotor magnetic field 29c, 29d is opposite , Can increase the power generated by mutual induction with the induced stator magnetic field 27a. Moreover, the rotation of the two auxiliary axial flow blades 28e, 28f can assist the flow velocity of the axially flowing wind entering the tower 2 from the downwind port 220, which is like a small tornado effect. The rotation of the two auxiliary axial flow blades 28e, 28f is opposite to the above design, which can increase the mutual induction and magnetic cutting amount between the rotor magnetic field 29c, 29d and the induced stator magnetic field 27a, thereby increasing the power generation effect. In addition, although the two auxiliary axial flow blades 28e, 28f have opposite directions, as mentioned above, the shape of the blades can be designed to achieve the same function of the pushed wind direction, and the pushed wind direction is restricted to the above-mentioned axial flow blade 28a, The direction of the wind pushed by 28b is the same, so that the axial flow blades 28a, 28b and the two auxiliary axial flow blades 28e, 28f have the effect of pushing the axial wind flow velocity in the tower 2 by relay. Secondly, the induction stator magnetic field 27a can also be eliminated between the two auxiliary axial flow blades 28e, 28f. The rotational kinetic energy of the two auxiliary axial flow blades 28e, 28f can be driven by a gear mechanism to drive a generator to generate electricity, thereby increasing the power generation effect. .

When the above-mentioned embodiment of the present invention is applied to a vertical axis wind power generator 1, as shown in FIGS. 3 and 5. Except for the rotating blades 10a, 10b exposed above the tower 2, which are pushed and rotated by natural wind, and the rotating power is connected to a generator to generate electricity, the upper and lower vertical shaft blades 24a, 24a, and 24a, which are arranged in the bare space 20 of the tower 2 The rotation power of 24b can also be connected to an individually connected generator to generate electricity; the two axial flow blades 28a, 28b are magnetized to form a rotor magnetic field 29a, 29b and the induction stator magnetic field 27 that interact with each other, and magnetic cutting can also generate power; two auxiliary axial flow blades 28e and 28f are magnetized to form the mutual induction between the rotor magnetic field 29c, 29d and the induced stator magnetic field 27a, and the magnetic cutting can also generate electricity. Therefore, the present invention has the effect of increasing the power generation. Furthermore, in the present invention, a plurality of down vents 220 are arranged on the bottom peripheral wall 22 of the tower 2 so that the hot air below the tower 2 can enter the tower 2 through the down vents 220. The principle of the chimney effect and the tower The axial wind in 2 is pushed through the auxiliary axial flow blades 28e, 28f, the lower axial flow blade 28d, the two axial flow blades 28a, 28b, and the upper axial flow blade 28c from bottom to top, like a small tornado effect, the axial wind is extremely large , Can increase the axial wind speed in the tower 2 to make the power generation effect better.

Next, please refer to FIG. 9, which is a structural diagram of the embodiment of the present invention applied to a horizontal axis wind turbine 3. The structure of the tower 2 and the configuration of the internal components of the tower 2 are the same as those in FIGS. 3 and 5.

Please refer to FIG. 10, the bottom end between the tower 2 of the vertical axis wind turbine 1 and the horizontal axis wind turbine 3 can be connected by a light-transmitting connecting pipe 4 at the downwind port 220, and the tower 2 The internal axial wind direction system can be designed, the axial wind direction in the tower of the horizontal axis wind turbine 3 is downward (as shown by arrow A), and the axial wind direction in the tower of the vertical axis wind turbine 1 Upward (as indicated by arrow B), the axial wind in the tower 2 of the horizontal-axis wind turbine 3 is heated by the outside temperature of the light-transmitting connecting pipe 4, and then flows vertically according to Bernoulli's Law. In the tower of the axis wind turbine 1, the air volume in the tower of the vertical axis wind turbine 1 is increased, and the vertical axis blades 24a, 24b and the axial flow blades 28a, 28b in the tower 2 are increased through the chimney effect , The air volume and speed of auxiliary axial flow blades 28e, 28f, etc., make the power generation effect better; Or as shown in Fig. 11, the down-wind ports 220 between a horizontal axis wind turbine 3 and a plurality of vertical axis wind turbines 1 are connected by a connecting pipe 4; or even multiple vertical axis wind turbines 1 and multiple horizontal axis wind turbines The down vent 220 of the generator 3 is communicated with the connecting pipe 4. In this way, the wind in different towers 2 can be introduced into adjacent towers 2 through the forward setting of the wind direction, so as to enhance the effect of wind power generation.

Secondly, the structure of the two auxiliary axial flow vanes 28e, 28f and the induction stator magnetic field 27a disclosed in FIG. 5 can be as shown in FIG. 12. Two of the auxiliary axial flow blades 28e, 28f have opposite directions and magnetized S and N poles. The structure of the induction stator magnetic field 27a is shown in FIG. 12, and the inner wall of the tower 2 is opposite to the two auxiliary axial flow blades 28e. A ring of permanent magnet 271c is attached to the setting position of 28f. A set of horizontal excitation coils 271b extends horizontally between the two auxiliary axial flow blades 28e and 28f in the middle of the permanent magnet 271c. A vertical excitation coil 271b extends from the permanent magnet 271c below, and the two vertical excitation coils 271b are respectively located adjacent to the two auxiliary axial flow blades 28e and 28f. When the magnetized auxiliary axial flow blades 28e, 28f rotate, they move relative to the excitation coil 271b, and generate electricity due to the cutting of the magnetic field lines, and the two auxiliary axial flow blades 28e, 28f rotate in opposite directions, which can increase the power generation.

From the above description, it can be seen that the structure of the present invention is not only novel and industrially usable, but also has the function of increasing power generation in application to meet the requirements of an invention patent. An invention patent application is filed in accordance with the law, and it is urged to review and approve the patent. Debian.

1: Vertical axis wind turbine

2: Tower

10a, 10b: rotating blade

20: bare empty space

21: Column

22: Zhou wall

23: Support shaft

220: Downwind

24a: upper vertical axis blade

24b: Lower vertical axis blade

25a, 25b: auxiliary blade

26: windward

221: The wind board

27, 27a: induction of the stator magnetic field

270, 270a: metal plate

271, 271a: Excitation coil

28a, 28c, 28d: axial flow blade

29a, 29c: rotor magnetic field

28c: Upper axial flow blade

28e: auxiliary axial flow blade

Claims (12)

A wind power generation device includes a hollow tower and rotating blades fixed on the outside of the tower; it is characterized in that: the tower is provided with a support shaft, and the support shaft is pivotally connected with an upper and a lower row. The vertical axis blades and the lower vertical axis blades, the rotation directions of the upper vertical axis blades and the lower vertical axis blades are configured to rotate in opposite directions; the tower is internally fixed between the upper vertical axis blades and the lower vertical axis blades There is an induction stator magnetic field. The adjacent end faces of the upper vertical axis blade and the lower vertical axis blade are respectively provided with an axial flow blade rotating with the upper vertical axis blade and the lower vertical axis blade, and the axial flow blade is formed by magnetization The rotor magnetic field, the induced stator magnetic field and the rotor magnetic field generate electricity through mutual induction and magnetic cutting; the peripheral wall of the tower corresponds to the position of the upper vertical axis blades and the lower vertical axis blades. The lateral wind outside the tower can enter the tower through the windward, and push the upper vertical axis blades and the lower vertical axis blades to rotate. The power energy of the upper vertical axis blades and the lower vertical axis blades is connected to the generator And power generation. The wind power generation device according to claim 1, wherein the top end of the upper vertical axis blade is configured with an upper axial flow blade that is conjoined with the upper vertical axis blade; the bottom end of the lower vertical axis blade is configured with The lower axial flow blades are linked together by the lower vertical shaft blades; the upper axial flow blades and the lower axial flow blades push the axial flow direction in the same direction in the tower. The wind power generation device according to claim 1, wherein the peripheral wall of the tower corresponds to the two sides of the windward opening, and is equipped with wind baffle plates inclined to the outside of the tower. The wind power generation device according to any one of claims 1 to 3, wherein the bottom peripheral wall of the tower is configured with a down vent, and the down vent can be opened or closed as required. The wind power generation device according to claim 4, wherein the supporting shaft in the tower is pivotally connected with two auxiliary axial flow blades arranged separately from the upper and lower sides, and the two auxiliary axial flow blades rotate in opposite directions but push the axial wind The direction of the two auxiliary axial flow blades is the same; the rotational kinetic energy of the auxiliary axial flow blades is respectively driven by a gear mechanism to drive a generator to generate electricity. The wind power generation device according to claim 4, wherein the supporting shaft in the tower is pivotally connected with two auxiliary axial flow blades arranged separately from the upper and lower sides, and the two auxiliary axial flow blades rotate in opposite directions but push the axial wind The directions of the two auxiliary axial flow blades are magnetized to form a rotor magnetic field; between the two auxiliary axial flow blades is an induced stator magnetic field, which interacts with the induced stator magnetic field through the rotation of the rotor magnetic field Induction and magnetic cutting to generate electricity. The wind power generation device according to claim 1, wherein the outer circumference of the tower is surrounded by a plurality of supporting columns, and the side walls of the vertical columns are connected with the peripheral wall of the tower. The wind power generation device according to claim 1, wherein the induced stator magnetic field is composed of a metal plate with a grid hole shape and an excitation coil wound on the metal plate. The wind power generation device according to claim 6, wherein the induced stator magnetic field is composed of a metal plate with a grid hole shape and an excitation coil wound on the metal plate. The wind power generation device according to claim 6, wherein the induced stator magnetic field is a permanent magnet attached to the inner wall of the tower relative to the installation position of the two auxiliary axial flow blades, and the middle of the permanent magnet faces the second A group of horizontal excitation coils extend horizontally between the auxiliary axial flow blades, and vertical excitation coils are respectively extended from the permanent magnets above and below the group of horizontal excitation coils. The two vertical excitation coils are respectively located on the two auxiliary shafts. The adjacent side of the flow blade. The wind power generation device according to claim 1, wherein the upper vertical axis blade and the lower vertical axis blade are both equipped with a linked half-barrel auxiliary blade, through which the outer diameter of the tower is undertaken by the half-barrel auxiliary blade. The windward inlet enters the lateral wind in the tower. The wind power generation device according to claim 4, wherein the down vent can be internally communicated with the bottom end of the tower of another wind power generator through a light-transmitting communication tube as required.

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