JP2008025554A - Wind power generation system and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve profitability, economical efficiency and stability in a wind power generation system and device adapted to mount a windmill on a floating body moored up in the sky and generate electric power by use of upper high-speed wind. <P>SOLUTION: The floating body is used for multiple purposes by attaching an advertisement medium, a monitoring camera or the like to the floating body, paying attention to the feature of the floating body that the visual communication with the ground is never interrupted over a wide area, to cover the loss of expensive helium filled in the floating body, whereby the profitability and economical efficiency of wind power generation are improved. Concretely, a conventional method for enhancing the dynamic lift by the Magnus effect of the floating body by rotating a scoop paddle attached to the floating body has a fatal defect that the floating body cannot be used as the advertisement medium. To solve this defect, a stable structure for enhancing the dynamic lift without rotating the floating body is obtained by rotating the scoop paddle separately from the floating body or attaching vanes to the floating body to facilitate the multipurpose use of the floating body by attachment of the advertisement, the monitoring camera or the like. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wind power generation system in which a floating body filled with helium (hereinafter referred to as a floating body) is tethered to the sky by a tether fixed on the ground, and a wind turbine is mounted on the floating body to generate power using high-speed winds in the sky. And apparatus.

  Since the energy generated by the windmill is proportional to the cube of the wind speed, the windmill is mounted on a floating body tethered to the sky where the wind speed is larger than the surface of the earth. A wind power generation system that transmits power is extremely advantageous in that generated power is greatly amplified. Among them, [Magnen Air Rotator System] shown in Non-Patent Documents 1 and 2 is a scoop paddle type windmill in which a scoop paddle is integrally constructed with a floating body, and the floating body itself rotates around a horizontal axis by wind power. It has a novel configuration of generating electricity, and has the great advantage of being easy to lift to the sky because the lift (magnus effect) generated by the rotation of the scoop paddle is added to the buoyancy of the floating body to increase the buoyancy.

  On the other hand, floating bodies are generally constructed of a soft film material with a multilayer structure for the purpose of weight and cost reduction. However, if the scoop paddle is integrated with the floating body and rotated at a high speed, excessive stress caused by the centrifugal force and drag of the scoop paddle Since it is applied to the floating body material, it may cause gas leakage and shorten the life of the floating body, which is not structurally preferable. Further, when the apparatus is enlarged, problems such as the efficiency of the scoop paddle type wind turbine being worse than that of the propeller type and the vibration due to the unbalance of the floating membrane material may be disadvantageous.

  In particular, helium filled in the floating body is easy to leak and expensive, and economic loss due to leakage cannot be ignored. Therefore, the multipurpose use of the floating body is desirable from the viewpoint of profitability. The present inventor noticed that the floating object tethered to the sky has a feature that the exchange of field of view with the ground is not blocked over a wide area, advertising media visible from the ground over a wide area, wide area such as crop theft and parking violation It is intended to build a highly profitable power generation system by increasing the added value of the floating body by mounting a surveillance camera etc. on the floating body to monitor ground crimes, forest fires, etc.

  In other words, considering the fact that a floating body filled with helium is already used commercially as an ad balloon for advertising purposes only, helium loss etc. can be covered by utilizing a floating body equipped with a power generator as an advertising medium. Obviously, the profitability can be significantly improved. However, the [Magen Air Rotator System] apparatus in which the floating body itself rotates has a problem that it cannot be used as an advertising medium even if an advertisement is mounted on the rotating floating body, and this is a fatal disadvantage in practical use. there is a possibility.

NEDO Overseas Report No. 976, “Wind Generator Flying in the Sky (Canada)” Internet information: www. magenn. com [Magen Air Rotor System]

  In view of the above, an object of the present invention is to improve profitability, economy, stability, and the like in a wind power generation system and apparatus that generates power by mounting a windmill on a floating body tethered to the sky.

  The invention according to claim 1 for solving the above-mentioned problem is a system for improving the profitability of the apparatus, in which a wind turbine is mounted on a floating body tethered to the sky and power is generated using high-speed winds in the sky. It is characterized in that the floating body is used for multiple purposes by attaching an advertising medium or a surveillance camera to the floating body.

  The invention described in claim 2 is a system that saves energy and expands the use function of the device at night. In the invention described in claim 1, the advertising medium is an electric light emitter, and the electric power generated by wind power is generated. In addition to being used for decoration, the illumination power source is automatically turned on and off by a light sensor and / or timer.

  The invention described in claim 3 is an apparatus that is more economical and stable and eliminates the drawbacks of the above [Magenn Air Rotator System]. A wind turbine is mounted on a floating body tethered to the sky, and the high-speed wind in the sky. In the device that generates electricity using the power generator, the floating body is cylindrical and a scoop paddle that rotates concentrically around the outer periphery of the floating body is provided to generate power, and the lift of the Magnus effect that accompanies the rotation of the scoop paddle is superimposed on the buoyancy of the floating body It is characterized by being deployed so that it can be added.

  According to a fourth aspect of the present invention, there is provided an apparatus for improving the profitability of the above-mentioned invention. In the third aspect of the present invention, a scoop paddle that is mounted on the floating body and rotates on the outer periphery of the floating body is transparent. It is constructed with the body and is structured so that the advertising medium can be seen through.

  Further, the invention according to claim 5 is a device that is more efficient and suitable for upsizing, and in a device that mounts a windmill on a floating body tethered to the sky and generates power using high-speed winds in the sky, the floating body is shaped as an airship. The wings are constructed integrally with the floating body, the lift generated by the wings is added to the buoyancy of the floating body, and a windmill is attached to the lower part of the wings.

  According to a sixth aspect of the present invention, there is provided an apparatus for ensuring the stability of the present invention. In the fifth aspect of the present invention, two wind turbines rotating in opposite directions are attached to the lower part of the wing in a symmetrical manner, and the floating body The buoyancy center, the wind pressure center of the blade, the center of gravity of the entire device, and the anchoring center point of the floating body are arranged on substantially the same vertical line so that the floating body can be maintained substantially horizontal.

  The invention described in claim 7 is an apparatus for improving the profitability of the invention described above. In claim 6, the advertisement medium and / or the surveillance camera is mounted on the floating body and the wing surface.

  The invention described in claim 8 is an apparatus that saves energy and expands the use function of the apparatus at night. In claim 4 and claim 7, the advertisement medium is an illuminating light emitter, and the electric power generated by wind power is generated. A light sensor and / or a timer for automatically turning on / off an electric power source are provided while being arranged so as to be used for decoration.

  According to the first aspect of the present invention, it is possible to use the feature of the floating body that the field-of-view exchange with the ground is not blocked over a wide area, the advertisement function visible from the wide area ground, the wide-area ground crime such as crop theft and parking violation, and the forest The floating body can be used for many purposes, such as a monitoring function for fire, etc., so that the utility value of the floating body itself is remarkably increased, and the profitability of the wind power generator is improved by covering expensive helium loss.

  According to the second aspect of the present invention, a high advertising effect can be obtained by the electric decoration that stands out in the night sky, and it is possible to automatically advertise with energy saving only in an effective time zone by setting the light sensor and the timer.

  According to the invention of claim 3, since the floating body does not rotate and only the scoop paddle can rotate to generate power and the Magnus effect, excessive stress due to the centrifugal force and drag of the scoop paddle is not applied to the floating material, Effective in preventing gas leakage and shortening of floating body life. In particular, since the advertisement medium mounted on the floating body is stationary, the advertisement medium can be viewed with the afterimage effect from the gap between the paddles even when there is a scoop paddle that rotates outward.

  According to the fourth aspect of the present invention, the advertisement medium mounted on the floating body can be seen more clearly through the transparent scoop paddle, and is particularly effective for nighttime electric advertisements.

  According to the fifth aspect of the present invention, since the lift of the wing is added to the buoyancy of the floating body and the buoyancy is increased by the additional construction of the relatively simple wing, there is an effect of making it easy to use the high wind speed in the sky. Also, there is an effect that the windmill can be easily attached to the floating body of the soft film material.

  According to the sixth aspect of the present invention, the two wind turbines are rotated in opposite directions to cancel the rotational moments, and the buoyancy center of the floating body, the wind pressure center of the wing, the center of gravity of the device, and the anchoring point of the floating body are substantially set. Since the floating bodies are arranged on the same vertical line and are maintained almost horizontal, stable operation is possible.

  According to the seventh aspect of the invention, the profitability of wind power generation is remarkably improved by adding the advertisement function that can be seen from the ground over a wide area and the function of monitoring ground crimes and forest fires over a wide area.

  According to the eighth aspect of the present invention, an effective advertisement function at night can be exhibited while saving energy in an optimal time zone.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a front view (partial sectional view) of a first embodiment of the present invention, FIG. 2 is a sectional view taken on line SS of FIG. 1, FIG. 3 is a schematic diagram of a conventional example corresponding to FIG. FIG. 5 is a side view of the second embodiment of the present invention, FIG. 5 is a view P of FIG. 4, and FIG. 6 is a view Q of FIG.

  1 and 2 of the first embodiment, a cylindrical floating body 1 constructed of a highly airtight multi-layer membrane and filled with helium inside is integrally coupled to the floating body central shaft 2 and fixed to the frame 3; The frame 3 is tethered to a winch (not shown) fixed on the ground by the tether 4. An advertising medium 5 such as a printed poster or LED illumination light emitter is attached to the surface of the floating body 1, and the power source of the illumination is an optical sensor installed on the frame 3 or on the ground with the electric power obtained by wind power generation and / or Alternatively, it is turned on and off by automatic control of a timer (not shown), and is arranged so that it is illuminated at the optimal time zone at night. If necessary, a surveillance camera (not shown) is mounted on the frame 3.

  A guide bearing 6 and a thrust bearing 7 are provided on the floating body central shaft 2, and two rotating disks 8 are rotatably provided with the floating body 1 interposed therebetween. A scoop paddle 9 is integrally constructed on the rotating disk 8, The paddle 9 is configured to rotate concentrically on the outer periphery of the floating body 1 in the direction of the arrow 11 by the force of the wind 10 and generate lift 12 by the Magnus effect. The rotation of the rotating disk 8 is transmitted to the generator 14 provided on the frame 3 through the speed increasing gear 13, and the generated power is sent to the ground winch (not shown) by the connecting wire 4 or the conducting wire accompanied with the connecting wire. Through the power system or storage battery.

  As described above, since the floating body 1 does not rotate and only the scoop paddle 9 rotates, the power generation and the Magnus effect are imparted, so that the stress associated with the rotation of the scoop paddle 9 does not apply to the floating body 1 and gas leakage and life of the floating body 1 occur. There is an effect to prevent the shortening. In particular, since the advertising medium 5 mounted on the floating body 1 is stationary, it can be seen from the gap of the scoop paddle 9 due to the afterimage effect. In particular, the scoop paddle 9 that rotates on the outside is made transparent, and the advertising medium 5 is electrically connected with an LED or the like. If you decorate it, you can see clearly from the ground over a wide area, and by using this advertising function effectively and earning money, helium loss etc. is covered, and you can expect a significant improvement in profitability of wind power generation.

  As is apparent from the schematic diagram shown in FIG. 3, the conventional [Magen Air Rotor System] is constructed such that the scoop paddle 9 ′ is fixed to the floating body 1 ′ and rotates integrally with the floating body central axis 2 ′. In addition to the structural disadvantages as described above, the floating body 1 ′ cannot be used as an advertising medium, so the profitable disadvantages cannot be avoided. In the figure, 10 'represents wind, 11' represents an arrow in the direction of rotation, and 12 'represents lift of the Magnus effect.

  Next, a second embodiment will be described with reference to FIGS. In the figure, a wing 22 constructed of a lightweight reinforced resin or the like is bonded and integrated to an airship-shaped floating body 21 constructed of a highly airtight multi-layer membrane and filled with helium, and an arrow 31 is formed below the wing 22. Two horizontal-axis propeller wind turbines 23 rotating in opposite directions are attached symmetrically to the center of the floating body. Here, the relative arrangement of each component is such that the buoyancy center 24 of the floating body 21, the wind pressure center 25 of the blade 22, the center of gravity 26 of the entire apparatus, and the anchoring center point 28 that connects the anchoring hooks 27 of the floating body 21 are substantially the same vertical line 29. By arranging it above, the rotating shaft of the floating body 21 and the horizontal axis propeller wind turbine 23 is always kept horizontal.

  As described above, an advertising medium 33 such as a printed poster or an LED illumination light emitter is attached to the surface of the floating body 21, and the power supply of the illumination is turned on and off by automatic control of a light sensor and / or a timer at an optimum time zone at night. Illuminate. Further, a monitoring camera 34 that can be controlled by communication from the ground is provided on the lower surface of the floating body 21 to enable ground monitoring. Depending on the application, an infrared camera may be provided in addition to the surveillance camera 34 in preparation for night ground monitoring. All the electric power required for the above-mentioned lighting, surveillance camera, and communication with the ground can be covered by wind power.

  The anchoring hook 27 is arranged so that the action point of the horizontal resultant force X generated by the wind 32 (the drag force of the floating body 21 + the drag force of the wing 22 + the drag force of the propeller windmill 23) coincides with the anchoring center point 28 on the vertical line 29. And when the resultant force Y in the vertical direction (lift of the wings 22 + buoyancy of the floating body 21−total weight) is aligned on the vertical line 29, the tether 30 is composed of X and Y. Pulled in the direction of the total resultant force Z, the floating body 21 is tethered to a ground winch (not shown) while maintaining the level. The electric power generated by the horizontal axis propeller wind turbine 23 is introduced into the power system or storage battery via the winch on the ground by the connecting line 30 or the conductive wire accompanied by the connecting method as described above.

  In the above description, the wind turbine type is a horizontal axis propeller wind turbine. However, in the case of a small output, it can be replaced with a known vertical axis type wind turbine such as a simple crossflow type, a gyro mill type, a Savonius type, or a Darius type. However, even in such a case, it is preferable to balance the reaction force by using two windmills as described above and rotating them in opposite directions.

  Front view of the first embodiment of the present invention (partial sectional view)   SS sectional view of FIG.   Schematic diagram of a conventional example corresponding to FIG.   Side view of the second embodiment of the present invention   View P diagram of FIG.   View Q in FIG.

Explanation of symbols

1, 21 Floating body 2, 2 'Floating body central axis 3 Frame 4, 30 Linkage 5, 33 Advertising medium 6 Guide bearing 7 Thrust bearing 8 Rotating disk 9, 9' Scoop paddle 10, 10 ', 32 Wind 11, 11' , 31 Arrows 12 and 12 'Lift 13 Speed increasing gear 14 Generator 22 Wing 23 Horizontal axis propeller windmill 24 Floating body buoyancy center 25 Wing wind pressure center 26 Center of gravity of the entire device 27 Tether hook 28 Tether center point 29 Vertical line 34 Surveillance camera X resultant force in the horizontal direction Y resultant force in the vertical direction Z total resultant force

Claims (8)

  A wind power generation system characterized in that a wind turbine is mounted on a floating body tethered to the sky and uses a high-speed wind in the sky to generate electricity using an advertising medium or a surveillance camera on the floating body for multi-purpose use. .   The advertisement medium is an illumination light emitter, and the electric power generated by wind power is used for the illumination, and the illumination power source is automatically turned on and off by the light sensor and / or timer. Wind power generation system.   In a device that generates power using a wind turbine mounted on a floating body that is tethered to the sky and uses high-speed winds in the sky, the floating body is cylindrical and a scoop paddle that rotates concentrically on the outer periphery of the floating body is provided to generate power, and the scoop paddle rotates. A wind turbine generator is provided so that the lift of the Magnus effect generated along with the buoyancy of the floating body is superimposed and added.   The wind turbine generator according to claim 3, wherein a scoop paddle that is mounted with an advertising medium on a floating body and rotates on the outer periphery of the floating body is constructed of a transparent body so that the advertising medium can be seen through.   In a device that mounts a windmill on a floating body tethered to the sky and generates power using high-speed winds in the sky, the floating body is shaped as an airship, and the wings are built on the floating body and the lift generated by the wings is superimposed on the buoyancy of the floating body A wind power generator characterized by adding and attaching a windmill to the lower part of the wing.   Two wind turbines rotating in opposite directions are attached to the lower part of the wing in a symmetrical manner, and the buoyancy center of the floating body, the wind pressure center of the wing, the center of gravity of the entire device, and the anchoring center point of the floating body are arranged on substantially the same vertical line. The wind power generator according to claim 5, wherein the floating body is configured to be maintained substantially horizontal.   The wind power generator according to claim 6, wherein an advertisement medium and / or a surveillance camera is mounted on a floating body or a wing surface.   The advertisement medium is an illuminator and is arranged so that the electric power generated by wind power can be used for the illuminator, and is provided with a light sensor and / or a timer that automatically turns on and off the illuminator. The wind power generator according to claim 4 and claim 7.

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