JP2003328923A - Horizontal axis type windmill power generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windmill power generation device equipped with a Darius type windmill assembly which surely avoids vibration or falling-down by strong wind vibration or an earthquake, has improved durability and reliability of the windmill power generation device without increasing an installation area by increase of the size and the weight or enlargement of the device, and increases windmill output per unit installation area. <P>SOLUTION: In this horizontal axis type windmill power generation device equipped with the Darius type windmill assembly, a plurality of the windmill assemblies are rotatably supported on a support groove through a bearing by horizontally arranging a windmill axis, and a power generator is connected to a plurality of the windmill assemblies and supported on the support groove. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a plurality of blades, both ends of which are supported by a wind turbine shaft and erected in the axial direction of the wind turbine shaft, in the circumferential direction of the wind turbine shaft, and the wind force acting on the blades. A Darrieus-type wind turbine assembly for rotating the wind turbine shaft by a lift force generated by the wind turbine shaft, the wind turbine shaft assembly being arranged so that the wind turbine shaft is horizontal, and being supported by a supporting frame via a bearing. The present invention relates to a horizontal axis wind turbine power generator.

[0002]

2. Description of the Related Art A large number of wind turbine generators are provided to drive a generator by a wind turbine that applies a wind force to a plurality of blades supported by a rotor to generate a rotational force, thereby providing a high output power generation capability. The wind power generation facility is installed at a high place such as on a hill or a mountain, or at a place where a high wind speed can be obtained at the sea. A wind turbine device called a Darrieus type is provided as one of the wind turbine devices applied to such a wind turbine power generator.

FIG. 6 shows a schematic structure of such a Darrieus-type wind turbine device. In FIG. 6, 2 is a wind turbine shaft which is vertically erected,
Reference numeral 1 denotes a blade formed in a rod shape. A plurality of blades 1 (three in this example) are arranged along the circumferential direction of the wind turbine shaft 2 to form each blade 1.
The upper end and the lower end of the are fixed to the wind turbine shaft 2. As shown in the figure, the rod-shaped blade 1 is formed in the shape of a troposchien (rope skipping rope) by projecting the central portion thereof in the radial direction of the wind turbine shaft 2, and its blade profile is Z in FIG. 6 (A).
As shown in FIG. 6B, which is a Z cross-sectional view, the air flow U directs the abdominal surface 1b toward the back surface 1a (or vice versa).
The blade profile is such that lift L is generated. Reference numeral 6 denotes a generator connected to the output end of the wind turbine shaft 2, and reference numeral 70 denotes a supporting rope for preventing a fall that connects a connecting portion 71 provided at the upper end of the wind turbine shaft 2 and a plurality of locations on the ground 72.

When the Darrieus-type wind turbine device is operated, when the air flow U acts on the blade 1, the flow velocity along the back surface 1a becomes larger than the flow velocity along the ventral surface 1b due to the shape of the blade profile of the blade 1 (and vice versa). However, the lift force L from the abdominal surface 1b to the back surface 1a (or vice versa) is generated due to the difference in the flow velocity. The lift force L is generated on each blade 1, and the lift force L causes a rotational force as indicated by an arrow in the drawing to rotate the wind turbine shaft 2. Since the wing 1 is formed in the shape of a troposchien (jump rope), no bending moment is applied to the wing itself during rotation, and a rotational force can be obtained regardless of the wind direction.

[0005]

In the Darrieus-type wind turbine device shown in FIG. 6, since the entire device is supported by the wind turbine shaft 2 which is erected vertically, a strong wind, an earthquake, etc. Vibration and falling due to vibration are likely to occur, and in order to cope with this, the connecting portion 71 and the ground 72 provided at the upper end of the wind turbine shaft 2 are dealt with.
Are connected to a plurality of points by a supporting rope 70.

However, in such a Darrieus-type wind turbine device, when the blade 1 is arranged at a high place where the wind energy is large, it is necessary to extend the wind turbine shaft 2 in the vertical direction and to provide a plurality of blades 1. However, even if the supporting ropes 70 for preventing the fall as described above are provided, the support rigidity of the entire wind turbine device is low, and it is difficult to surely avoid the vibration and the fall of the wind turbine device due to a strong wind, an earthquake, or the like. In addition, the support rope 70 as described above
However, the installation area of the wind turbine device increases, and the output of the wind turbine per unit installation area decreases.

In view of the above problems of the prior art, the present invention provides a wind turbine generator including a Darrieus-type wind turbine assembly in which a plurality of blades formed by sticking rod-shaped blades to the wind turbine shaft are attached to the wind turbine shaft. In addition to increasing the installation area due to the increase in size of the device, it is possible to reliably avoid vibration and collapse due to strong wind vibrations and earthquakes, etc. to improve the durability and reliability of the wind turbine device, and to increase the unit installation area of the device. The aim is to increase the wind turbine output per hit.

[0008]

In order to solve the above problems, the present invention provides an invention as set forth in claim 1, in which both ends are supported by a wind turbine shaft and is installed in the axial direction of the wind turbine shaft, and the central portion is the wind turbine shaft. A plurality of rod-shaped blades protruding in the radial direction and formed in a curved shape are arranged in the circumferential direction of the wind turbine shaft, and the wind turbine shaft is rotated by the lift generated by the wind force acting on the blades. In a wind turbine device having a three-dimensional structure, a plurality of wind turbine assemblies are rotatably supported on a supporting frame via bearings with the wind turbine shafts arranged horizontally, and one wind turbine assembly is provided for each of the plurality of wind turbine assemblies. A horizontal-axis wind turbine power generator is proposed in which a generator is connected to the wind turbine assembly and supported by the support frame.

In the first aspect, it is preferable that the first aspect is configured as in the second to fourth aspects. That is, according to a second aspect, a plurality of power generating sets, which are formed by connecting the plurality of wind turbine assemblies and one generator, are provided in a plurality of stages in the vertical direction of the support frame.

According to a third aspect of the present invention, the support frame comprises a plurality of bearing support members provided upright in the axial direction of the rotary shaft, to which bearings are mounted which support the rotary shaft composed of the wind turbine shaft and the generator shaft. The wind turbine assembly and the generator are arranged between the bearing supporting members in a form in which the wind turbine assembly is connected to both sides of the generator with the generator at the center.

According to a fourth aspect of the present invention, the support frame is mounted on an annular rail laid on the ground and is guided by the annular rail so as to be rotatable, and the support frame is grounded at a required rotation position. It is equipped with an outrigger mechanism that locks up.

According to this invention, a power generation set comprising a plurality of Darrieus-type wind turbine assemblies in which the wind turbine shafts are horizontally arranged and one generator are connected to each other can be vertically rotated on a multi-stage support frame. Since the wind turbine generator is configured to be supported by the wind turbine generator, the supporting rigidity of the wind turbine generator that supports multiple stages of generator sets on the supporting frame can be kept large, and vibration due to wind pressure is greater than that of the conventional vertical Darrieus wind turbine. It prevents the occurrence of falling or falling and can stably support a multi-stage power generation set consisting of a wind turbine assembly and a generator without causing vibration or falling, improving the durability and reliability of the device. To do.

Further, as described above, a plurality of Darrieus-type wind turbine assemblies and one power generator are connected to a power generation set in a plurality of stages in the height direction of the supporting frame without causing vibration or falling. Since it can be installed, a large number of power generation sets can be placed in a high place where the wind velocity energy is large, and the power generation output is increased by a compact structure with high support rigidity that minimizes the installation space. It becomes possible to increase the wind turbine output per unit installation area of the device.

Further, according to the present invention, the support frame is rotated along the annular rail, and the support frame is locked by the outrigger mechanism at the maximum position of the wind force to the wind turbine assembly. Can be operated at the maximum position of the wind force at all times, and high wind turbine efficiency can be maintained.

According to a fifth aspect of the present invention, there is provided a rod-shaped blade having both ends supported by the wind turbine shaft, erected in the axial direction of the wind turbine shaft, and having a central portion protruding in the radial direction of the wind turbine shaft and formed in a curved shape. In a wind turbine device including a Darrieus-type wind turbine assembly that is arranged in the circumferential direction of the wind turbine shaft and rotates the wind turbine shaft by a lift force generated by the wind force acting on the blades, a vertically standing rectangular cylinder The pair of wind turbine assemblies are horizontally arranged on both sides of the bearing support member forming the side wall of the support frame, and one end side thereof is supported by the bearing in a cantilevered manner. A wind turbine shaft of the wind turbine assembly is connected to an output shaft extending in a vertical direction via a right-angle connecting mechanism such as a bevel gear device, and a generator is connected to a lower end portion of the output shaft. Characterize.

In the fifth aspect, it is preferable that the sixth aspect is configured as in the sixth to seventh aspects. That is, in claim 6, the pair of wind turbine assemblies are provided in a plurality of stages in the vertical direction of the support frame.

According to a seventh aspect of the present invention, the support frame is connected to a frame fixed on the ground via a turning device, and the support frame and the wind turbine assembly supported by the support frame are moved in any direction by the turning device. It is configured to be rotatable.

According to the present invention, a plurality of Darrieus-type wind turbine assemblies in which the wind turbine shafts are horizontally arranged are provided on both sides of a bearing support member of a rectangular tubular support frame with bearings at one end. The supporting frame is supported in a holding manner, the output shaft is extended inside the supporting frame in a direction perpendicular to the wind turbine shaft, and the generator is connected to the lower end of the output shaft, so that the supporting frame is formed in a rectangular tubular shape. Due to its high rigidity, the Darrieus-type wind turbine assembly in which the wind turbine shaft is arranged in the direction perpendicular to the output shaft is arranged in multiple stages in the vertical direction of the support frame without increasing the bending or vibration of the support frame. A large number of wind turbine assemblies can be arranged in a high place where the wind velocity energy is large, and the power generation output can be increased in a small installation space, thereby increasing the wind turbine output per unit installation area of the device. .

According to the seventh aspect of the present invention, the supporting frame can be rotated by the turning device so that the wind turbine generator can be always directed to the maximum wind force position. It becomes possible to operate in the operating position, and high wind turbine efficiency can be maintained.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, unless there is a specific description, and are merely illustrative examples. Nothing more.

FIG. 1 is a side view of a horizontal axis wind turbine generator according to a first embodiment of the present invention. 2A is shown in FIG.
2A is an arrow view, and FIG. 6B is an enlarged cross-sectional view of the Z portion of FIG. FIG. 3 is a view corresponding to FIG. 1 showing a second embodiment, and FIG. 4 is an enlarged sectional view of a Y portion of FIG. FIG. 5 is an explanatory view of the operation of the Darrieus-type wind turbine.

1 and 2 showing the first embodiment of the present invention, 2 is a wind turbine shaft, 1 is a plurality of blades fixed to the wind turbine shaft 2, and the blade 1 has a central portion of the wind turbine shaft 2. It is formed in the shape of a troposchien (rope skipping rope) rod that projects in the radial direction, and is erected in the axial direction of the wind turbine shaft 2 with both ends fixed to the wind turbine shaft 2. As shown in FIG. 2 (B) which is a detailed view of the W portion of FIG. 2 (A), the wing 1 has a lift force L directed from the abdominal surface 1b to the rear surface 1a (or vice versa) by the air flow U.
The wing profile is such that A plurality of blades 1 having such a configuration are provided in the circumferential direction of the wind turbine shaft 2 (usually 3 to 6).
The Darrieus-type wind turbine assembly 01 is arranged.

In the wind turbine assembly 01, four wind turbine shafts 2 are horizontally arranged, and four wind turbine shafts 2 are connected in the axial direction (a plurality of wind turbine shafts may be used as a common shaft). The wind turbine shaft 2 is connected via a coupling 7 to a generator shaft 07, which is a rotating shaft of a generator 6 installed in a central portion of a support frame 4 described later, and is connected to four wind turbine assemblies 01 and a central portion. A power generation set is configured by the arranged generator 6. The power generation sets are arranged in three stages (which may be a plurality of stages) in a vertical direction of a support frame 4 described later.

Reference numeral 4 denotes a support frame, which is a thick plate-shaped lower support member 4
Six bearing bearing members 4a arranged side by side in the horizontal direction, that is, a plurality of bearings 4a in the axial direction of the wind turbine shaft 2 are erected on the b side, and each bearing supporting member 4a is moved horizontally by the vertical member 4c. It is composed by connecting. Each bearing support member 4
Three (3) plural bearings 3 are attached to the vertical direction a. The generator 6 is arranged between the bearings 3 in the central portion, and four wind turbine assemblies 01 are arranged between the bearings 3 on both sides, and each of them is rotatably supported. The wind turbine assembly 01 is connected to both sides of the center of the wind turbine to form the power generation set, and the power generation set is installed in three stages, that is, three sets in the vertical direction of the support frame.

Reference numeral 5 is an annular rail having a center diameter D on the ground 72.
Is laid in. A lower support member 4b of the support frame 4 is rotatably mounted on the annular rail 5 while being guided by the annular rail 5 via a plurality of rollers 05.
Reference numeral 04 denotes an outrigger mechanism, which is attached to the side of the support frame 4 at a plurality of appropriate positions and locks the support frame 4 on the ground 72 at an appropriate rotation position.

In the horizontal-axis wind turbine generator having the Darrieus-type wind turbine assembly 01 having the above structure, first, the generation process of the rotational force in the Darrieus-type wind turbine assembly 01 is shown in FIG. A description will be given based on the plane arrangement. In FIG. 5, 1 is a blade, 2 is a wind turbine shaft, and 2 a is an axial center of the wind turbine shaft 2. In the velocity triangle of the blade 1, U is the wind velocity of the air flow (wind), V is the rotational peripheral velocity of the blade 1,
W is a blade inlet velocity (relative velocity) of the air flow, and each blade 1 operates with such a velocity triangle, and a blade inlet velocity (relative velocity) W is generated.

Lifting force L by the blade inlet velocity (relative velocity) W
Occurs, the tangential direction (t) component L _{1 of the} lift L, that is, the rotational force component to the wing 1 is generated regardless of the rotational position of the wing 1. The wind turbine assembly 01 is rotationally driven by the rotational force L ₁ applied to the plurality of blades 1. The rotational force of each wind turbine assembly 01 generated as described above is superimposed on the number of the wind turbine assemblies 01 (four in this example) to become the rotational force of the wind turbine shaft 2, and the wind turbine shaft 2 generates power. 6 is transmitted to the generator shaft 07. In the present first embodiment, three stages, that is, three sets of power generation sets each including four wind turbine assemblies 01 and one power generator 6 are installed, so that the rotational force of the wind turbine shaft 2 is one as described above. Four wind turbine assemblies 01 per power generation set, 12 in total can be obtained.

According to this embodiment, a power generation set is formed by connecting a plurality of (four in this example) Darrieus-type wind turbine assemblies 01 with the wind turbine shafts 2 arranged horizontally and one generator 6. Since it has a structure in which it is rotatably supported on each bearing support member 4a of a plurality of stages (three stages in this example) of the support frame 4 in the vertical direction via the bearing 3, the power generation set of the plurality of stages is supported by the support frame 4 The supporting rigidity of the wind turbine generator supported by the above can be largely maintained, and vibration and collapse due to wind pressure can be avoided as compared with the conventional vertical Darrieus wind turbine as shown in FIG. As a result, it is possible to stably support a plurality of stages of power generation sets including the wind turbine assembly 01 and the power generator 6 without causing vibration or falling.

In addition, as described above, the height of the support frame 4 is increased by the power generation set formed by connecting the plurality of Darrieus-type wind turbine assemblies 01 and one power generator 6 without causing vibration or collapse. Since it is possible to arrange multiple stages in the direction, it is possible to arrange a large number of power generation sets in a high place where wind velocity energy is large, and it is possible to increase the power generation output while minimizing the increase in installation space. Becomes

Further, the supporting frame 4 is placed on the annular rail 5 and rotated along the annular rail 5, and the supporting frame 4 is supported by the outrigger mechanism 04 at the position where the wind force to the wind turbine assembly 01 is maximized. It is possible to constantly operate the wind turbine generator at the maximum action position of the wind force by locking the wind turbine generator on the ground 72.

3 to 4 showing the second embodiment, 10
Is a support frame, which is formed in a rectangular tube shape and stands upright on the ground 72. Two bearings 3 (which may be a plurality) are attached in the vertical direction to the bearing support members 10a forming the both side walls of the support frame 10. And
The wind turbine assembly 01 is provided on both sides of each bearing support member 10a.
The wind turbine shaft 2 of this is arranged horizontally, and one end side is the bearing 3
Is supported in a cantilever form by two stages (which may be a plurality of stages) in the vertical direction of the support frame 10 depending on the number of the bearings 3.

Reference numeral 12 denotes an output shaft, which extends vertically in the form of vertically penetrating the inside of the support frame 10 having a rectangular cylindrical shape. Further, the bevel gear mechanism 015 in which the wind turbine assembly 01 at each stage is formed by meshing the bevel gears 13 and 14 with each other.
The output shaft 12 is connected to the generator 6 supported by a pedestal 15 at the lower end of the output shaft 12. Reference numeral 16 is an intermediate bearing of the output shaft 12, 03 is a generator bearing, and 11 is a thrust bearing provided at the lower end of the output shaft 12.

Reference numeral 20 is a turning device provided in the middle portion of the support frame 10. 4, which is an enlarged view of the Y portion showing the details of the swivel device 20, 10b is an upper flange fixed to the lower end of the bearing support member 10a, and 21 is a ring gear fixed to the lower surface of the flange 10b. .
A pinion 22 is fixed to the output shaft 24 of the turning motor 23 and meshes with the ring gear 21.
The pinion 22 is rotationally driven by 3, and the ring gear 21 is rotated.

Reference numeral 10c denotes a lower flange fixed to the upper portion of the pedestal 15 of the generator 6, 25 denotes a thrust bearing fixed to the upper surface of the flange 10c, and the ring gear 21 makes the bearing surface of the thrust bearing 25 ( It is designed to rotate while sliding on the upper surface). That is, in the turning device 20, when the pinion 22 is rotated by the turning motor 23 to rotate the ring gear 21,
The support frame 10 fixed to the ring gear 21 via the flange 10b rotates to a predetermined position, and the wind turbine assembly 0
1 is oriented in the direction of action of the air flow.

According to the second embodiment, a plurality of Darrieus-type wind turbine assemblies 01 in which the wind turbine shafts 2 are arranged horizontally are provided on both sides of the bearing support member 10a of the rectangular tubular support frame 10, and one end side is a bearing. 3 is supported in a cantilever form, and the supporting frame 1
Since the output shaft 12 is vertically extended through the inside of 0 in the direction perpendicular to the wind turbine shaft 2 and the generator 6 is connected to the lower end portion of the output shaft 12, the support frame 10 is formed in a rectangular tubular shape. As a result, it has high support rigidity.

As a result, the Darrieus-type wind turbine assembly 01 in which the wind turbine shaft 2 is arranged in a direction perpendicular to the output shaft 12 is provided in the vertical direction of the support frame 10 without increasing the bending or vibration of the support frame 10. By arranging a plurality of stages, it becomes possible to arrange a large number of wind turbine assemblies 01 at a high place where the wind velocity energy is large. Therefore, according to such an embodiment, the power generation output can be increased with a small installation space, and the wind turbine output per unit installation area of the device can be increased.

Further, since the support frame 10 can be rotated by the turning device 20, the wind turbine assembly 01 can be always oriented to the maximum wind force position, and the wind turbine power generator can always be operated at the maximum wind force operating position. can do.

[0038]

As described above, according to the inventions of claims 1 to 4, a plurality of Darrieus-type wind turbine assemblies in which the wind turbine shafts are arranged horizontally and one generator are connected. Since the generator set is supported by the support frame, the supporting rigidity of the wind turbine generator can be kept large, vibration and collapse due to wind pressure can be avoided, and the generator set can be stabilized without vibration or collapse. The durability and reliability of the device are improved. In addition, it is possible to arrange a large number of power generation sets in a high place where the wind velocity energy is large, and it is possible to increase the power generation output with a compact structure with high support rigidity that minimizes the increase in installation space, Wind turbine output per unit footprint of the device can be increased.

According to the fourth aspect of the present invention, the support frame is rotated along the annular rail, and the outrigger mechanism locks the support frame at the maximum wind force position to the wind turbine assembly. Can be operated at the maximum position of the wind force at all times, and high wind turbine efficiency can be maintained.

According to the fifth to seventh aspects of the invention, the supporting frame for supporting the plurality of Darrieus-type wind turbine assemblies in which the wind turbine shafts are horizontally arranged is formed in a rectangular tube shape and has high rigidity. Without increasing the bending and vibration of the frame,
It is possible to arrange the Darrieus-type wind turbine assembly in which the wind turbine shafts are arranged horizontally in a plurality of stages in the vertical direction of the support frame. This makes it possible to arrange a large number of wind turbine assemblies in high places where the wind velocity energy is large, and it is possible to increase the power generation output in a small installation space and to increase the wind turbine output per unit installation area of the device. Can be increased. Further, according to the present invention, it is possible to rotate the support frame by the turning device and always direct the wind turbine generator to the maximum position of the wind force to the wind turbine assembly. It is possible to drive and maintain high wind turbine efficiency.

[Brief description of drawings]

FIG. 1 is a side view of a horizontal axis wind turbine power generator according to a first embodiment of the present invention.

2A is a view taken along the line AA of FIG. 1, and FIG. 2B is an enlarged cross-sectional view of a Z portion of FIG.

FIG. 3 is a view corresponding to FIG. 1 showing a second embodiment.

FIG. 4 is an enlarged cross-sectional view of a Y portion of FIG.

FIG. 5 is an explanatory view of the operation of the Darrieus wind turbine.

FIG. 6 is a front view of a conventional Darrieus-type wind turbine.

[Explanation of symbols]

1 wing 01 Windmill assembly 2 wind turbine 3 bearings 4, 10 support frame 4a 10a Bearing support member 4a 04 Outrigger mechanism 5 ring rail 6 generator 015 Bevel gear mechanism 20 swivel device

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshiyuki Hayashi             5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries             Business Nagasaki Institute (72) Inventor Shinji Arinaga             5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries             Business Nagasaki Institute (72) Inventor Yuji Miyami             1-1 Nagano-shi Atsunoura-cho Mitsubishi Heavy Industries Ltd.             Company Nagasaki Shipyard (72) Inventor Toshio Miyake             1-1 Nagano-shi Atsunoura-cho Mitsubishi Heavy Industries Ltd.             Company Nagasaki Shipyard (72) Inventor Hayakawa             1-1 Nagano-shi Atsunoura-cho Mitsubishi Heavy Industries Ltd.             Company Nagasaki Shipyard F term (reference) 3H078 AA08 AA26 AA31 BB11 BB12                       CC13 CC22 CC46

Claims (7)

[Claims] 1. A rod-shaped blade having both ends supported by a wind turbine shaft and extending in the axial direction of the wind turbine shaft and having a central portion projecting in the radial direction of the wind turbine shaft and formed in a curved shape in a circumferential direction of the wind turbine shaft. In a wind turbine device including a Darrieus-type wind turbine assembly for rotating the wind turbine shaft by a lift generated by wind force acting on the blades, a plurality of the wind turbine assemblies are horizontally arranged on the wind turbine shaft. It is arranged and rotatably supported by a support frame via a bearing, and one generator is connected to the wind turbine assembly for the plurality of wind turbine assemblies and is supported by the support frame. Horizontal axis wind turbine generator. 2. The horizontal shaft according to claim 1, further comprising a plurality of power generation sets, each of which is formed by connecting the plurality of wind turbine assemblies and one power generator, in a vertical direction of the support frame. Type wind turbine generator. 3. The support frame comprises a plurality of bearing support members, each of which is provided with a bearing for supporting a rotary shaft composed of the wind turbine shaft and the generator shaft, in an axial direction of the rotary shaft. The horizontal axis wind turbine power generator according to claim 2, wherein the wind turbine assembly and the generator are arranged between the members in a form in which the generator is centrally connected to the wind turbine assemblies on both sides thereof. apparatus. 4. The support frame is mounted on an annular rail laid on the ground, is configured to be rotatable by being guided by the annular rail, and locks the support frame on the ground at a required rotation position. The horizontal axis wind turbine power generator according to any one of claims 1 to 3, further comprising an outrigger mechanism. 5. A rod-shaped blade having both ends supported by a wind turbine shaft and extending in the axial direction of the wind turbine shaft and having a central portion protruding in the radial direction of the wind turbine shaft and formed in a curved shape in the circumferential direction of the wind turbine shaft. In a wind turbine device provided with a Darrieus-type wind turbine assembly that rotates a plurality of wind turbine shafts by a lift force generated by the wind force acting on the blades, a support frame vertically erected in the shape of a rectangular cylinder. A pair of the wind turbine assemblies on both sides of a bearing support member that constitutes the side wall of the wind turbine shaft, the wind turbine shafts of the wind turbine assemblies are horizontally arranged, one end of which is supported by a bearing in a cantilevered manner, and the wind turbine assembly extends vertically in the support frame. A horizontal shaft type in which a wind turbine shaft of the wind turbine assembly is connected to the output shaft via a right angle connecting mechanism such as a bevel gear device, and a generator is connected to a lower end portion of the output shaft. Wind turbine generator. 6. The wind turbine assembly of the pair is provided in a plurality of stages in the vertical direction of the support frame.
The horizontal axis wind turbine generator described. 7. The support frame is connected to a frame fixed to the ground via a turning device, and the support frame and the wind turbine assembly supported by the support frame can be rotated in arbitrary directions by the turning device. The horizontal axis wind turbine power generator according to claim 5, which is configured.