JP3136281U - Wind turbine for omnidirectional rotation control wind power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind turbine for a rotationally controlled wind power generator equipped with a control device which changes a pitch angle of a blade by a rotation change of the wind turbine, controls the rotation and protects the wind turbine from damage due to high rotation.
SOLUTION When the blade spreads in an umbrella shape due to centrifugal force as the wind turbine rotates, the pitch angle is changed by the blade guide plate when the blade spreads in an umbrella shape, reducing the wind resistance and suppressing the wind turbine rotation increase. To do.
When the electrical load on the generator increases, or the wind turbine rotates in a weak wind, the centrifugal force decreases, and the blade is guided to the blade guide plate when the umbrella is deflated by gravity with the joint as a fulcrum. Change, increase the wind resistance, suppress the decrease in windmill rotation.
When the blade expands or narrows in the shape of an umbrella due to centrifugal force and gravity, the windmill is guided by the blade guide plate to control the rotation of the windmill by changing the pitch angle, and even in strong winds, the windmill is damaged by high rotation without braking Power generation can be achieved with stable rotation.
[Selection] FIG.

Description

  The present invention relates to a wind turbine for wind power generator, which can rotate the wind turbine by wind power and control the rotation without a brake even in a strong wind.

In recent years, wind turbine rotation control methods for wind power generators have been developed, and there are methods in which rotation control is performed using a brake.
For example, Patent Document 1 is known.
JP-A-2005-320891 In Patent Document 1, it is considered that rotation is suppressed by an electric motor with a brake, and it is considered that suppressing the rotating portion with a brake increases the maintenance of the brake and the wind resistance of the windmill, which is a disadvantage.

By the way, in the conventional wind turbine for omnidirectional generators, rotation trouble increases at the time of a typhoon, a gust wind, and a strong wind, and the infinite energy of a wind is wasted.
In order to prevent rotation trouble, rotation is suppressed using a brake.
The use of a brake to suppress rotation increases the wind resistance of the windmill for the brake operation, increases the maintenance of the brake, and has disadvantages such as keeping the tower strong.
Here, it is an object to solve this inconvenience.

  The present invention provides a wind turbine for an omnidirectional rotation control wind generator capable of protecting a wind turbine for wind power generators from damage due to high rotation during gusts and strong winds, and obtaining good rotation control performance at a low cost without a brake. For the purpose.

  In order to achieve the above object, the wind turbine for an omnidirectional rotation control wind power generator according to the present invention is provided with a blade guide plate and a blade receiving hub in which a groove is machined in a disk on a rotating main shaft, and a combination of a joint and a blade. It is rotated by the wind.

  When rotating under strong wind, the lower blade with its own weight spreads in an umbrella shape with the joint as a fulcrum due to the centrifugal force of the rotating spindle and blade receiving hub, and the upper side is symmetrical with the joint as a fulcrum. It moves in a guide plate that has been processed into a groove for movement and bending, and twisting occurs due to the curved groove, and the pitch angle is twisted while spreading in an umbrella shape toward the direction of reducing wind resistance.

  When the electrical load of the generator 6 increases or when the wind becomes weaker, the rotation of the rotating spindle decreases, and the lower blade with its own weight on the fulcrum is deflated due to gravity, and the umbrella shape is deflated. On the other hand, the upper side moves symmetrically and moves in a guide plate having a groove formed in a curve, and the twist is generated by the curved groove, and the pitch angle is twisted while narrowing the umbrella shape toward increasing the wind resistance.

  When the wind turbine for an omnidirectional rotation control wind generator is rotated by receiving strong wind, the lower blade with its own weight spreads in an umbrella shape with the joint as a fulcrum due to the centrifugal force as the rotating spindle and blade receiving hub rotate. The upper side moves symmetrically with the joint as a fulcrum, moves in a guide plate with grooves in the curve, twists due to the curved grooves, and the pitch angle is twisted while spreading in an umbrella shape to reduce wind resistance Thus, the increase in rotation can be suppressed.

  When the electrical load of the generator increases or when the wind becomes weaker, the rotation of the rotating spindle decreases, and the lower blade that has its own weight with the joint as a fulcrum due to gravity, the umbrella shape is deflated and the joint is supported as a fulcrum. The upper side moves symmetrically, moves in a guide plate with a groove in the curve, twists due to the curved groove, and twists the pitch angle toward the direction of increasing the wind resistance while narrowing the umbrella mold, reducing the rotation Can be suppressed.

  By repeating the movements described in 0008 and 0009 even in the case of wind strength or rotation change when the electric load of the generator fluctuates, the rotation of the windmill can be controlled and power can be generated with stable rotation.

  The wind turbine for an omnidirectional rotation control wind power generator of the present invention is provided with a blade guide plate and a blade receiving hub with a curved groove formed in a disk on the rotating main shaft, and the principle of centrifugal force, gravity and leverage by combining joints and blades According to the device, the rotation control is excellent even in strong winds, and even if there is no brake, the damage due to the high rotation of the windmill is reduced, and power can be generated with stable rotation.

Hereinafter, a wind turbine for an omnidirectional vertical rotation control wind power generator according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the overall structure of a rotation control device for an omnidirectional rotation control wind turbine according to this embodiment. FIGS. 2, 3 and 4 show the structure of the wind turbine in the omnidirectional rotation control wind turbine generator wind turbine. Show.

  As shown in FIG. 1, the wind turbine for rotation control wind power generation is provided on the ground and vertically provided on the top of the tower 7. The blade 1, the blade receiving hub 2, the rotating shaft 3, the blade guide plate 4, and the joint 5. The generator 6 is provided inside the tower.

  A wind turbine having a plurality of blades 1 receives wind from the blades 1 and moves the blade receiving hub 2 around a joint 5 as a fulcrum to transmit the rotation to a generator 6 to be rotated to generate electricity.

  As shown in FIG. 2, the blade 1 opens to receive the wind, receives the wind, generates a rotational force, moves with the joint 5 as a fulcrum, and is transmitted to the rotatable spindle 3 that can be rotated by the blade receiving hub 2, and starts rotating. 6 also turns.

  When the wind force becomes stronger and the rotation of the windmill becomes higher, as shown in FIG. 3, the blade 1 rotates with the joint 5 as a fulcrum by the centrifugal force, and the lower blade spreads in an umbrella shape due to the centrifugal force. Moves symmetrically, moves in the blade guide plate 4 with a curved groove, twisted by the curved groove, twisted while spreading the pitch angle in an umbrella shape to reduce wind resistance, and increased in rotation Can be suppressed.

  When the wind force becomes weaker and the electrical load of the generator 6 increases, the rotation of the rotating spindle 3 of the windmill becomes lower, and when it becomes lower, as shown in FIG. 2, as the blade 1 rotates, the joint 5 is supported by gravity. The lower blade with its own weight is deflated, the upper part moves symmetrically with the joint as a fulcrum, moves in the blade guide plate 4 which is processed into a curved groove, and twisted by the curved groove, the pitch angle It is possible to suppress the decrease in rotation by twisting the umbrella shape while narrowing the umbrella shape toward increasing the wind resistance.

  The wind turbine for an omnidirectional rotation control wind power generator of the present invention can control the rotation without a brake by repeating the movements described in 0016 and 0017, and can generate power with a stable rotation.

  The wind turbine for rotation control wind power generation that reaches the above-mentioned embodiment can cope with wind in all directions, damage due to high rotation at gusts and strong winds is reduced, and since there is no brake, it is excellent in maintainability and low cost by mass production Can be realized.

  It is a structure figure of the whole windmill.   It is a top view of a windmill.   It is a top view of a windmill.   It is a partial elevation view of a windmill.   It is a partial elevation view of a windmill.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blade 2 Blade receiving hub 3 Rotation main shaft 4 Blade guide plate 5 Joint 6 Generator 7 Tower

Claims (3)

  When the windmill rotates in response to the wind, it draws a circle with the joint as a fulcrum, the blade hem spreads into an umbrella shape due to centrifugal force, the umbrella shape is deflated by gravity, and the blade is applied by leveraging Wind turbine for omnidirectional rotation control wind power generator equipped with blades, characterized in that the pitch angle can be changed by the induction plate to generate rotational force.   When the windmill rotates in response to the wind, it draws a circle with the joint as a fulcrum, the blade hem spreads into an umbrella shape due to centrifugal force, the umbrella shape is deflated by gravity, and the blade is applied by leveraging Wind turbine for an omnidirectional rotation control wind power generator equipped with a blade guide plate, characterized in that it is possible to change the pitch angle of the blade by guiding the blade to the groove of the blade guide plate.   A wind turbine for an omnidirectional rotation control wind power generator provided on the wind turbine and capable of controlling the rotation of the wind turbine according to claim 1, 2.

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