JP2006307815A - Vertical shaft type small windmill with energy accumulator having low startability at low speed and high efficiency at middle to high speed - Google Patents

Vertical shaft type small windmill with energy accumulator having low startability at low speed and high efficiency at middle to high speed Download PDF

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JP2006307815A
JP2006307815A JP2005154553A JP2005154553A JP2006307815A JP 2006307815 A JP2006307815 A JP 2006307815A JP 2005154553 A JP2005154553 A JP 2005154553A JP 2005154553 A JP2005154553 A JP 2005154553A JP 2006307815 A JP2006307815 A JP 2006307815A
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wind
windmill
low
energy storage
storage device
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Hidetoshi Ando
英敏 安藤
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SYSTEM GIKEN KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generating system which is suitable for characteristics of climate and wind in Japan, or highly efficient and stable even when the direction and the intensity of a wind frequently change, by materializing technology for effectively utilizing the whole of the unstable energy source since wind in Japan is an unstable energy source which is exceedingly variable. <P>SOLUTION: The vertical shaft type small windmill is provided with a device added to conventional models to accumulate wind power energy. The micro windmill has low startability at low speed similar to that of savonius type windmill and high efficiency at high speed similar to that of a linear vane windmill, and is provided with an energy accumulator. The power generating system can obtain stable high output by switching between drag at low speed and lift at high speed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、今後、大いに期待されるエネルギー蓄積装置を持つ風車において、自然界の風が、強弱、風向きの変化により、変動しても、安定した出力で効率良く、電力が供給出来るような、日本の市街地の風の特性に合った、エネルギー蓄積装置を有した小型風車に関する発明である。  The present invention provides a wind turbine having an energy storage device that is highly expected in the future, so that even if the wind in the natural world fluctuates due to changes in the direction of the wind, the power can be supplied efficiently with a stable output. It is invention regarding the small windmill which has the energy storage device suitable for the characteristic of the wind of an urban area.

風力発電は、太陽光発電と共に、自然エネルギーとして１９９７年新エネルギー法の施行以来、導入が進められている。風力発電は、夜間や天気が悪くても風さえ吹いていれば、発電が可能であり、日照時間に左右される太陽発電より環境負荷も小さく、優れた性質をもっている。今後の風力発電は、日本の自然条件に合わせた風力発電システムを開発し、普及率も含めて開発することが、急務とされている。  Wind power generation, along with solar power generation, has been introduced as a natural energy since the enforcement of the New Energy Law in 1997. Wind power generation is capable of power generation even if the wind is blowing even at night or in bad weather, and it has superior environmental properties and has a lower environmental impact than solar power generation, which depends on sunshine hours. For future wind power generation, it is urgent to develop a wind power generation system tailored to the natural conditions in Japan, including the penetration rate.

自然界では、風向きが変わったり、風力が弱くなったり、強くなったりする事は頻繁に有り、風向き、風力の変化を生じても、安定した回転数を保ち、出力効率を維持することが要求されている。また、自然の風は、予想も出来ないような強風も想定され、効率と共に、強度への配慮が必要である。日本の風は、風の強弱、風向きなど、自然条件に大きく左右され不安定である。実際の市街地では、風速１〜６［ｍ／ｓ］、弱風、順風くらいまでをエネルギー源としており、従来機種では、低速時には、低起動性のサボニウス型、高速時には、高効率のダリウス型の採用など、さまざまな技術的な工夫が施されてきた。 これらの技術開発により、発電コストは、確かに低減してきたが、いまだ、高効率化という技術的課題は残されている。  In nature, wind direction changes, wind power weakens and strengthens frequently, and even if wind direction and wind force change, it is required to maintain stable rotation speed and maintain output efficiency. ing. Natural winds are also expected to be unpredictable, and it is necessary to consider the strength as well as the efficiency. The Japanese wind is unstable, largely influenced by natural conditions such as wind strength and direction. In an actual urban area, the wind speed is 1 to 6 [m / s], light winds and smooth winds are used as energy sources. In the conventional model, the low-starting Savonius type is used at low speed, and the high efficiency Darrieus type is used at high speed. Various technical devices such as recruitment have been applied. With these technological developments, power generation costs have certainly been reduced, but the technical problem of higher efficiency still remains.

日本の風は、極めて変動しやすい不安定なエネルギー源であることから、この不安定なエネルギー源を如何に効率良く、すべて、有効利用するかの技術が必要となっている。日本の気候、風の特性に合った、すなわち、風向き、風の強さが頻繁に変わっても、高効率な、しかも安定した風力発電システムを目指すことが必要である。本提案の風車は、従来機種に付加して、風力エネルギーを蓄積する装置を有しており、ロータ直径１〜３［ｍ］、出力１〜３［ｋｗ］規模の小型風車を構成する。サボニウス並みの低速時の低起動性、高速時では直線翼並みの高効率性、さらにエネルギー蓄積装置を加えた小型風車を実現する。低速時には、抗力、高速時には、揚力と切り替えて、安定した高出力が得られる発電システムとなる。最終的には、小型化、軽量化を図り構造がシンプルで、静かで、安全な、一般家庭用でも使える実用的な低価格な発電システムを実現する。  Since the Japanese wind is an unstable energy source that is extremely susceptible to fluctuations, it is necessary to have a technology for how to efficiently and effectively use this unstable energy source. It is necessary to aim for a highly efficient and stable wind power generation system that matches the Japanese climate and wind characteristics, that is, even if the wind direction and wind strength change frequently. The proposed windmill has a device for storing wind energy in addition to the conventional model, and constitutes a small windmill having a rotor diameter of 1 to 3 [m] and an output of 1 to 3 [kW]. It realizes a small windmill with low start-up performance at low speeds similar to Savonius, high efficiency as straight wings at high speeds, and an energy storage device. By switching to drag at low speeds and lift at high speeds, the power generation system can obtain a stable high output. Ultimately, it will reduce the size and weight, and realize a practical, low-cost power generation system that has a simple structure, is quiet, is safe, and can be used for ordinary homes.

本提案の、風力発電システムに用いるエネルギー蓄積装置により、従来機種では、捨てていたカットイン付近の微風エネルギー、さらに風が強い時に捨てていたカットアウト付近の余剰エネルギーを全て有効利用し、入力側での最大効率を目指し、出力側の発電時には、フライホイール効果、多極発電機の高効率化運用も含め、安定した出力を得る事が可能となる。サボニウス並みの低速時の低起動性、直線翼並みの高速時の高効率性のエネルギー蓄積装置付きの小型風車が実現可能となる。低速時には、抗力、高速時には、揚力と切り替えて利用する事により、安定した高効率を実現する事が可能となる。  The energy storage device used in the wind power generation system proposed in this proposal effectively uses all of the breeze energy near the cut-in that was thrown away, and the surplus energy near the cut-out that was thrown away when the wind is strong. Aiming for maximum efficiency at the output side, it is possible to obtain a stable output during the power generation on the output side, including the flywheel effect and the highly efficient operation of the multipolar generator. It is possible to realize a small windmill with an energy storage device with low start-up performance at the same speed as Savonius and high efficiency at the same speed as a straight wing. Stable high efficiency can be achieved by switching to drag at low speed and switching to lift at high speed.

日本の市街地の風の特性に合った、微風から強風までをカバー出来る
静かで、安全な、一般家庭用でも使える軸垂直型小型風車の実用機を実現する。下記前提条件を満足する実用機の実現である。
＜日本の市街地の風の特性＞とは？
風向 目まぐるしく変わる。
風速 順風が少なく、微風から弱風程度１〜６［ｍ／ｓ］が多い。
瞬間最大風速 低気圧の通過による異常な、突風、強風、台風が発生する。Realize a quiet, safe, vertical-axis small wind turbine that can be used in general households that can cover light and strong winds that match the characteristics of Japanese urban winds. This is the realization of a practical machine that satisfies the following prerequisites.
What are the characteristics of Japanese urban winds?
The wind direction changes rapidly.
Wind speed There are few smooth winds, and there are many 1-6 [m / s] of light to weak winds.
Instantaneous maximum wind speed Unusual gusts, strong winds, and typhoons are generated due to the passage of low pressure.

図１FIG.

上面図は、ブレードの位置を示す。The top view shows the position of the blade.

図２FIG.

正面図は、装置全体の大きさを示している。
風車として回転する中心軸には、１個のベベルギアが取り付けてある。
その周囲には、ブレードの回転軸に連結してあるハス歯歯車が、中心軸のベベルギアと連動している。本実施例では、ブレードが４枚、各ブレード毎にウオームギアと傘歯車１個の構成となる。例えば、ベベルギアとハス歯歯車のギア比［１：５］、ウオームギア部の減速比［１０：１］とすると、中心軸１回転で、ブレードは半回転する。一方、頻繁に変わる風向きは、風見鶏により、検知し、上記機構を介して、ブレードの位置制御を行う事が出来る。翼の位置と風の向きの位置関係は、The front view shows the size of the entire apparatus.
A bevel gear is attached to the central shaft that rotates as a windmill.
A helical gear connected to the rotating shaft of the blade is linked to the bevel gear of the central shaft around the periphery. In this embodiment, there are four blades, and each blade has a worm gear and one bevel gear. For example, assuming that the gear ratio of the bevel gear and the helical gear is [1: 5] and the reduction ratio of the worm gear part is [10: 1], the blade rotates half a turn with one rotation of the central shaft. On the other hand, the frequently changing wind direction can be detected by the weathercock and the blade position can be controlled via the mechanism. The positional relationship between the wing position and the wind direction is

図１FIG.

上面図の場合、右の翼から反時計回りに
右の翼：水平
上の翼：右上がり
左の翼：垂直
下の翼；右下がりの状態で、下から上方向に風がた時には、風車は反時計方向に回転する。
中心軸の回転トルクは、増速機構３、ぜんまいバネ等のエネルギー蓄積機構４、フライホイール５を介して、発電機６を回転し、発電することになる。
このように、風見鶏を使い、各ブレードのきめ細やかな位置制御を行い、従来機種では、捨てていたカットイン付近の微風エネルギー、さらに風が強い時のカットアウト付近の余剰エネルギーを全て本提案のエネルギー蓄積機構に蓄積し、入力側での最大効率を目指し、出力側の発電時には、フライホイール効果、多極発電機の高効率化運用も含め、高効率で安定した出力を得る事が可能となる。In the case of the top view, the right wing counterclockwise from the right wing: horizontal wing: right-up left wing: vertical down wing; Rotates counterclockwise.
The rotational torque of the central shaft rotates the generator 6 via the speed increasing mechanism 3, the energy storage mechanism 4 such as the mainspring spring, and the flywheel 5 to generate electric power.
In this way, fine weather control of each blade is performed using weathercocks, and in the conventional model all the wind energy near the cut-in that was thrown away, and surplus energy near the cut-out when the wind is strong are all proposed. Accumulated in the energy storage mechanism, aiming for maximum efficiency on the input side, and at the time of power generation on the output side, it is possible to obtain stable output with high efficiency, including flywheel effect, high efficiency operation of multipolar generator Become.

今後、ますます、省エネルギー対策は、地球環境対策で必要である。日本の市街地の風の特性を生かした実用的な高効率な発電システムが実現すれば、風力発電は、無尽蔵で、クリーンな自然エネルギー源となり、二酸化炭素ガス抑制にも大きく寄与する事が出来る。  In the future, more and more energy-saving measures will be necessary for global environmental measures. If a practical high-efficiency power generation system that takes advantage of the wind characteristics of urban areas in Japan is realized, wind power generation will become an inexhaustible and clean source of natural energy, and can contribute greatly to the suppression of carbon dioxide gas.

は、風車本体の正面図である。These are front views of a windmill main body. は、風車本体の側面図である。These are side views of a windmill main body. は、風車本体の見取図である。These are the sketches of a windmill main body.

符号の説明Explanation of symbols

１風見鶏
２ブレード
３増速機構
４エネルギー蓄積機構
５フライホイール
６発電機、1 weathercock 2 blade 3 speed increasing mechanism 4 energy storage mechanism 5 flywheel 6 generator,

Claims (7)

多数枚の直線翼を持ち、ゼンマイばね等のエネルギー蓄積装置を持つ垂直軸型小型風車。  A vertical axis small windmill with a large number of straight blades and an energy storage device such as a spring spring. 風の強弱により、ブレードの長さが可変する、ゼンマイばね等のエネルギー蓄積装置を持つ垂直軸型小型風車。  A vertical-axis small windmill with an energy storage device such as a spring spring that changes the blade length depending on the strength of the wind. 風の強弱により、ブレードのピッチが可変する、ゼンマイばね等のエネルギー蓄積装置を持つ垂直軸型小型風車。  A vertical-axis small windmill with an energy storage device such as a spring spring that changes the pitch of the blades depending on the strength of the wind. センター軸にベベルギアを持ちその周辺に多数枚のブレードを配置したエネルギー蓄積装置付きの垂直軸型小型風車。  A vertical axis type small windmill with an energy storage device that has a bevel gear on the center shaft and a number of blades around it. センター軸にベベルギア、ブレード部にウオームギア等を用いて、機械的手段により多数枚のブレードの向きをコントロール可能としたエネルギー蓄積装置付きの垂直軸型小型風車。  A vertical axis small windmill with an energy storage device that uses bevel gears for the center shaft and worm gears for the blades, and the orientation of multiple blades can be controlled by mechanical means. 風見鶏を利用して、風の向きを感知し、多数枚のブレードの向きをコントロール可能としたエネルギー蓄積装置付きの垂直軸型小型風車。  A vertical axis small windmill with an energy storage device that uses wind vanes to sense the direction of the wind and control the direction of multiple blades. 風見鶏を利用して、風の向きを感知し、突風などの異常時には、ブレードの向きを回転させ、抗力を受けない位置にコントロール可能としたエネルギー蓄積装置付きの垂直軸型小型風車。  A vertical axis small windmill with an energy storage device that uses wind vanes to sense the direction of the wind and, in case of abnormalities such as gusts, rotate the direction of the blade and control it to a position that does not receive drag.
JP2005154553A 2005-04-26 2005-04-26 Vertical shaft type small windmill with energy accumulator having low startability at low speed and high efficiency at middle to high speed Pending JP2006307815A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7425776B2 (en) * 2006-06-21 2008-09-16 Ketcham John C Multi-cylinder wind powered generator
WO2010071261A1 (en) * 2008-12-18 2010-06-24 Snu R&Db Foundation Displayable wind turbine
JP2013245564A (en) * 2012-05-23 2013-12-09 Ritsumeikan Blade for vertical axial wind turbine and vertical axial wind turbine
JP2014510236A (en) * 2011-04-28 2014-04-24 ミョンスン ベ Multipurpose rotating device and power generation system equipped with the same
CN110566401A (en) * 2019-10-17 2019-12-13 广州光环能源科技有限公司 Resistance-free vertical fan

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7425776B2 (en) * 2006-06-21 2008-09-16 Ketcham John C Multi-cylinder wind powered generator
WO2010071261A1 (en) * 2008-12-18 2010-06-24 Snu R&Db Foundation Displayable wind turbine
KR101230460B1 (en) * 2008-12-18 2013-02-06 서울대학교산학협력단 Displayable wind turbine
US8851838B2 (en) 2008-12-18 2014-10-07 Snu R&Db Foundation Displayable wind turbine
JP2014510236A (en) * 2011-04-28 2014-04-24 ミョンスン ベ Multipurpose rotating device and power generation system equipped with the same
US9512815B2 (en) 2011-04-28 2016-12-06 Myung-soon Bae Multipurpose rotary device and generating system including same
JP2013245564A (en) * 2012-05-23 2013-12-09 Ritsumeikan Blade for vertical axial wind turbine and vertical axial wind turbine
CN110566401A (en) * 2019-10-17 2019-12-13 广州光环能源科技有限公司 Resistance-free vertical fan

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