JP2008150963A - Vertical axis lift utilizing type counter-rotating wind turbine generator - Google Patents

Vertical axis lift utilizing type counter-rotating wind turbine generator Download PDF

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JP2008150963A
JP2008150963A JP2006337147A JP2006337147A JP2008150963A JP 2008150963 A JP2008150963 A JP 2008150963A JP 2006337147 A JP2006337147 A JP 2006337147A JP 2006337147 A JP2006337147 A JP 2006337147A JP 2008150963 A JP2008150963 A JP 2008150963A
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wind turbine
blade
rotor
generator
rotating
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Seinosuke Miyawaki
清之輔 宮脇
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Seinosuke Miyawaki
清之輔 宮脇
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

<P>PROBLEM TO BE SOLVED: To reduce vibration and noise, to upsize a wind turbine, and to eliminate danger of tower collapse, without requiring to equip a high tower, by installing a central part of a generator on the ground, by dispensing with a yaw system by utilizing a vertical axis wind turbine. <P>SOLUTION: This wind turbine generator can be enlarged without requiring the tower, by installing the generator on the ground, by reducing the noise and an energy loss by omitting a speed increasing gear by coping by a multipolar generator, without requiring the yaw system due to the vertical axis wind turbine, and can provide relatively high speed rotation by counter-rotating blades, and can highly efficiently generate electric power by directly coupling a stator 3 and a rotor 13 of the multipolar generator with the respective rotary blades, and can provide a high peripheral speed by upsizing the wind turbine, and can inexpensively and highly efficiently generate the electric power. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

風力を回転エネルギーに変換して、エネルギー形態の電力となる風力発電に関する。   The present invention relates to wind power generation that converts wind power into rotational energy and becomes power in the form of energy.

従来風力を回転エネルギーに変換して発電する装置としては、高速回転可能な揚力活用の風車で、水平軸のプロペラ型か、垂直軸のジャイロ型とダリュウス型の風車が存在するが、大型風力発電においては水平軸のプロペラ型風車ほとんどである。   Conventional devices that generate wind energy by converting wind power into rotational energy are wind turbines that use high-speed lift and can be either horizontal-axis propeller type or vertical-axis gyro and Darius type wind turbines. In most cases, it is a horizontal axis propeller type windmill.

しかし、風車は風の性質を利用し大型化することで高効率化を計るが、プロペラ型は発電機をタワー頂上に設置し、増速機を併設して、方位制御の目的でヨーシステムが必要となり、ヨーシステムを導入するため重心部が頂上部に存在し、タワーの倒壊あるいはブレードの破損等危険性も増大し大型化も限界に達している。   However, wind turbines use the nature of the wind to increase the size of the wind turbines, but the propeller type is equipped with a generator at the top of the tower and a speed increaser. In order to introduce the yaw system, the center of gravity exists at the top, and the dangers such as collapse of the tower or breakage of the blade increase, and the enlargement has reached the limit.

それに対し、垂直軸風車は中心軸及び発電機を地面に設置するため振動、騒音を吸収するので騒音公害も少なく、無志向性のため方位制御の必要も無く、大型化が可能となる。   On the other hand, the vertical axis wind turbine absorbs vibration and noise because the central shaft and the generator are installed on the ground, so noise pollution is low, and since it is non-oriented, there is no need for azimuth control and it is possible to increase the size.

垂直軸風車で、増速機の不要な多極同期発電機あるいは非同期発電機を組み合わせることで、可変速で大型の発電機を導入することが可能となり、重心を地上に置くため重量増加に対応することが可能。   A vertical-axis wind turbine can be combined with a multi-pole synchronous generator or an asynchronous generator that does not require a gearbox to introduce a large generator at a variable speed. It is possible to do.

従来の二重反転風車は、水平軸風車においては翼を前後に設置する方法で、前方翼で風のエネルギーの6割を消費するため、後方翼では期待するエネルギーを得られないのが実情であり、垂直軸風車においては、風車を同一軸に上下に設置しそれぞれを反対回転させることにより、相対的に高速回転を得る方法が考えられているが、この方法は2個の風車を設置するのと同じで効率的とはいえない。   In the conventional counter-rotating wind turbine, in the horizontal axis wind turbine, the blades are installed at the front and rear, and 60% of the wind energy is consumed in the front wing, so the expected energy cannot be obtained in the rear wing. In a vertical axis windmill, a method of obtaining relatively high speed rotation by installing the windmill up and down on the same axis and rotating them in opposite directions is considered, but this method installs two windmills. It is not as efficient as it is.

特開昭58−185980JP 58-185980 特表平10−504366Special table flat 10-504366

一般に発電に活用される揚力活用型水平軸風車では、方位制御が必要で大型風車の場合、ヨーシステムを導入するか、あるいはダウンブレードによる方法があるが、ヨーシステムを導入すればその重量は増大し、ダウンブレード方式を導入すれば風車を支えるタワーのカルマン渦の影響でブレードの疲労は増大しブレードの破損につながる危険が大きい。   In general, lift-driven horizontal axis wind turbines used for power generation require azimuth control, and in the case of large wind turbines, a yaw system is introduced or a down-blade method is available. However, if a yaw system is introduced, the weight increases. However, if the down blade system is introduced, the fatigue of the blade increases due to the Karman vortex of the tower that supports the wind turbine, and there is a high risk of blade damage.

高い周速比を得、風力を効率的に活用する目的で大型化するが水平軸風車の場合、増速機を導入するか又は多極発電機で対応するが増速機を導入すれば、その機械音は大きくエネルギーロスも大きな上、重量も増大する。
また、多極発電機を導入すれば発電機は大型となり、やはり重量は増大するため重心をタワー頂上に置く水平軸風車ではタワー倒壊の危険もあり、大型化は限界に達している。
To obtain a high peripheral speed ratio and increase the size for the purpose of efficiently utilizing wind power, in the case of a horizontal axis wind turbine, if a speed increaser is introduced or a multipolar generator is supported, but a speed increaser is introduced, The mechanical noise is large, the energy loss is large, and the weight increases.
In addition, if a multipolar generator is introduced, the generator will become large, and the weight will also increase, so there is a danger of tower collapse in a horizontal axis windmill with the center of gravity at the top of the tower, and the enlargement has reached the limit.

水平軸風車のブレードは片側支持で回転するため、翼先端部と付け根部分の速度は異なり設計は複雑で製造コストも高く、破損の危険性も高い。   Since the blades of a horizontal axis wind turbine rotate with one side support, the speeds of the blade tip and base are different, the design is complicated, the manufacturing cost is high, and the risk of breakage is high.

揚力活用風車は起動が困難なため、誘導電力により起動させる目的で、誘導電力導入のための配線が必要となる。   Since the wind turbine utilizing lift is difficult to start, wiring for introducing the induction power is necessary for the purpose of starting with the induction power.

従来の二重反転風車装置は、水平軸風車においては二個の風車を前後に設置し、それを反対回転させる方法によるが、この方法は前方の翼で大半のエネルギーを消費してしまい、後方翼では期待するエネルギーが得られない。
一方、垂直軸反転風車では同一軸に二個の風車を上下に設置し、それをそれぞれ反対回転させることで相対的に高効率の発電を得ようとするが、この方法は二個の風車を別個に設置する方法と同じで倍する受風面積が必要となり高効率な発電とはいえない。
The conventional counter-rotating wind turbine device is a method of installing two wind turbines at the front and rear in a horizontal axis wind turbine and rotating them counterclockwise, but this method consumes most of the energy at the front wing, and the rear The wings do not provide the expected energy.
On the other hand, in the vertical axis reversal wind turbine, two wind turbines are installed on the same axis up and down, and each of them is rotated in the opposite direction to try to obtain relatively high-efficiency power generation. The wind receiving area that is doubled in the same way as the method of installing separately is required, so it cannot be said to be highly efficient power generation.

水平軸風車は方位制御が必要なのに対し、垂直軸風車は無指向性で方位制御の必要は無く、したがってヨーシステムは不要。   Horizontal axis windmills require azimuth control, whereas vertical axis windmills are omnidirectional and do not require azimuth control, so no yaw system is required.

垂直軸風車を多極発電機で対応することにより増速機を省き、発電機を地上に設置することで振動、騒音を吸収し、重量の増大に対応するため風車の大型化が可能となり、高周速を得ることが可能。   By using a multi-pole generator for a vertical axis wind turbine, the gearbox can be omitted, and by installing the generator on the ground, vibration and noise can be absorbed, and the wind turbine can be made larger to cope with the increase in weight. High peripheral speed can be obtained.

垂直軸風車のブレードは上下二点をアームで固定し回転させるため強固となり、ブレードの疲労度も少なく、従ってブレード破損の危険も少なくなりその設計も簡単で、回転部の全重量を支えるタワーも不要で倒壊の危険を避けることが可能。   The blade of the vertical axis wind turbine is strong because the upper and lower points are fixed and rotated by the arm, the blade is less fatigued, therefore the risk of blade breakage is reduced and the design is simple, and the tower that supports the full weight of the rotating part It is unnecessary and can avoid the danger of collapse.

本発明の二重反転風車は揚力活用の垂直軸風車で、ジャイロ型あるいはダリュウス型風車の回転翼を外側と内側に設置し、同一軸、同一受風面積内で一様流を活用し、同時に左右反対回転をさせることで効率的な高速回転を得ることが可能。   The contra-rotating wind turbine of the present invention is a vertical axis wind turbine utilizing lift, and the gyro-type or Darius-type wind turbine rotor blades are installed on the outside and inside, utilizing a uniform flow within the same axis and the same wind receiving area, and at the same time Efficient high-speed rotation can be obtained by rotating in the opposite direction.

前記の外側回転翼下部アームに発電機の固定子を回転可能な状態に設置し、これと直結する、また内側回転翼下部アームに発電機の回転子を直結することで相対的高速回転が可能となり、発電機を多極とすることで増速機を省略し、それにより機械音を無くし、エネルギーロスを無くすることが可能。   The stator of the generator is installed in a rotatable state on the lower arm of the outer rotor and directly connected to it, and the generator rotor is directly connected to the lower arm of the inner rotor. Therefore, it is possible to eliminate the gearbox by making the generator multi-polar, thereby eliminating mechanical noise and energy loss.

垂直軸風車で困難な問題は起動性にある、ジャイロ型風車においてはブレードのアームである支持板(翼)に飛行機翼のフラップと同様な補助翼を設置し、あるいは、アーム(支持翼)の角度を変えることで、抗力の活用を可能な状態に設置し、起動を容易なものとすることが可能。   A difficult problem with a vertical axis wind turbine is the startability. In a gyro type wind turbine, an auxiliary wing similar to an airplane wing flap is installed on the support plate (wing) of the blade arm, or the arm (support wing) By changing the angle, it can be installed in a state where the drag can be used and it can be started easily.

垂直軸風車を活用することでヨーシステムが不要となり、発電機等中心部を地上に設置することで高いタワーを装置する必要も無く、振動、騒音を減少させ、風車の大型化を可能にし、タワー倒壊の危険を無くすることが可能。   By using a vertical axis windmill, the yaw system is no longer necessary, and by installing the center of the generator on the ground, there is no need to install a high tower, reducing vibration and noise, and allowing the windmill to be enlarged, It is possible to eliminate the danger of tower collapse.

発電機等を地上に設置することで大型化が可能となり、建設コストを大幅に削減するとともに保守管理も容易となり、電力供給コストを大幅に引き下げることが可能。   Installation of generators on the ground makes it possible to increase the size, significantly reducing construction costs, facilitating maintenance management, and greatly reducing power supply costs.

二重反転風車を多極同期発電システムと対応させることで、相対的高速度回転を得ることが可能となり、増速機を省略することで、エネルギーロスを無くすることが出来、効率的発電が可能となる上、増速機から発生する機械の騒音から開放される。   By making the counter-rotating wind turbine correspond to the multi-pole synchronous power generation system, it is possible to obtain a relatively high speed rotation, omitting the gearbox, eliminating energy loss, and efficient power generation. In addition to being possible, it is freed from machine noise generated by the gearbox.

プロペラ型風車は片側支持の回転運動のため、翼根と翼端は周速が異なり設計は複雑でブレード破損の原因となるのに対し、垂直軸風車は翼の両端固定でブレード破損の被害も少なく設計も簡単で、製造コストも低く、耐久性も大きい。   Propeller type wind turbines are supported on one side, so the blade root and tip have different peripheral speeds, and the design is complicated and causes blade damage. The design is small, the manufacturing cost is low, and the durability is high.

揚力活用の大型風車では、起動が困難なため誘導電力により起動するが、本発明のジャイロ型風車では回転翼のアームに飛行機翼のフラップと同様の補助翼を設置するか又はアームの角度を変え、抗力を活用し起動を容易にすることが可能。   Large wind turbines using lift are difficult to start up, so they are started by inductive power.However, in the gyro-type wind turbine of the present invention, auxiliary blades similar to airplane blade flaps are installed on the rotor blades or the angle of the arms is changed. It is possible to make the start-up easier by utilizing the drag.

起動においては、翼の回転過程で揚力と抗力の活用することにより、起動を容易にする
ことが可能となり、翼の回転(周速)が風速より速くなった場合は揚力の活用のみとなる。
In startup, it is possible to facilitate startup by utilizing lift and drag in the blade rotation process. When the blade rotation (peripheral speed) becomes faster than the wind speed, only lift is used.

本発明の実施形態を図1〜図3に基づいて詳細に説明する。   An embodiment of the present invention will be described in detail with reference to FIGS.

図1は垂直軸ジャイロ型二重反転風車および多極同期発電機の正面図で、2A、12Aのアームは起動を容易にする目的でフラップもしくは角度変更可能な装置で、向かい風においては揚力を活用し、追い風では抗力を活用することの出来る装置で、周速が風速を上回る状態では常時揚力を活用することの出来る装置。 Fig. 1 is a front view of a vertical axis gyro-type counter rotating wind turbine and a multi-pole synchronous generator. The arms of 2A and 12A can be flapped or angle-changed for the purpose of facilitating start-up, and lift force is utilized in the head wind. And in the tailwind, it is a device that can use the drag, and in the state where the peripheral speed exceeds the wind speed, the device that can always use the lift.

回転翼(1,11)は効果的に揚力を活用する目的でNACA型翼により構成され、好ましくは迎角を13°〜15°程度傾斜させる。   The rotary blades (1, 11) are constituted by NACA type blades for the purpose of effectively utilizing lift, and the angle of attack is preferably inclined by about 13 ° to 15 °.

1は、外側回転翼で、上下のアーム2Aおよび2Bに支えられ5の回転軸を中心に回転する。   Reference numeral 1 denotes an outer rotary blade, which is supported by the upper and lower arms 2A and 2B and rotates around a rotation axis of 5.

外側回転翼支持板2Bの上部に多極同期発電機の固定子を回転可能な状態で直結するため、固定子は2Bの回転に伴い回転する。   Since the stator of the multipole synchronous generator is directly connected to the upper part of the outer rotor blade support plate 2B in a rotatable state, the stator rotates as the 2B rotates.

11は内側回転翼で、上下のアーム12Aおよび12Bに支えられ5を中心に外側回転翼とは反対回転する装置。   Reference numeral 11 denotes an inner rotor blade, which is supported by upper and lower arms 12A and 12B and rotates around 5 on the opposite side of the outer rotor blade.

内側回転翼支持板12Bの下部に多極同期発電機の回転子を直結し、12Bとともに回転する。   The rotor of the multipolar synchronous generator is directly connected to the lower part of the inner rotor blade support plate 12B and rotates together with 12B.

外側回転翼と内側回転翼は、一様流により各々反対回転することにより、効率的発電が可能となる。   The outer rotor blade and the inner rotor blade rotate in opposite directions with a uniform flow, thereby enabling efficient power generation.

外側回転翼支持板の下部に回転用車輪及び車輪のためのレールを装置することも可能。   It is also possible to install rotating wheels and rails for the wheels under the outer rotor blade support plate.

内側回転翼には、翼の変形を防ぐため支線で固定する。   The inner rotor blade is fixed with a branch line to prevent the blade from deforming.

風車の倒壊を防ぐため、三方あるいは四方に支柱9を設置し、回転軸を10の支線で支える。   In order to prevent the windmill from collapsing, support columns 9 are installed in three or four directions, and the rotating shaft is supported by 10 branch lines.

図2は図1の平面図。   FIG. 2 is a plan view of FIG.

図3は回転翼が起動を容易にするための自動装置(角度を変更する場合の例)。   FIG. 3 shows an automatic device for facilitating activation of the rotor blade (an example in the case of changing the angle).

本発明の実施形態を示す二重反転風車及び多極同期発電機の正面図Front view of a counter rotating wind turbine and a multipolar synchronous generator showing an embodiment of the present invention 二重反転風車及び多極同期発電機の平面Planes of counter-rotating wind turbine and multi-pole synchronous generator 風車回転翼のアーム(支持翼)およびフラップの平面図Top view of wind turbine rotor blade arm (support blade) and flap 風車回転翼のアームおよびフラップの断面図(向かい風の場合)Cross section of wind turbine rotor blade arm and flap (in case of head wind) 風車回転翼のアームおよびフラップの断面図(追い風の場合)Cross section of windmill rotor blade and flap (in case of tailwind)

符号の説明Explanation of symbols

1 外側回転翼
2A 外側回転翼上部支持翼
2B 外側回転翼下部支持翼
3 多極同期発電機固定子
4 固定子カバー
5 回転軸
6A 外側回転翼上部支持ベアリング
6B 外側回転翼下部支持ベアリング
7 外側回転翼支持車輪
8 レール
9 支柱
10 支線(支柱用)
11 内側回転翼
12A 内側回転翼上部支持翼
12B 内側回転翼下部支持翼
13 多極発電機回転子
14 回転子カバー
16A 内側回転翼上部支持ベアリング
16B 内側回転翼下部支持ベアリング
17 内側回転翼支線
21 外側回転翼フラップ
21A 回転翼フラップ回転軸
21B 回転翼フラップ回転ガイド支点
21C 回転翼フラップガイド溝
22 内側回転翼フラップ
DESCRIPTION OF SYMBOLS 1 Outer rotary blade 2A Outer rotary blade upper support blade 2B Outer rotary blade lower support blade 3 Multipole synchronous generator stator 4 Stator cover 5 Rotating shaft 6A Outer rotary blade upper support bearing 6B Outer rotary blade lower support bearing 7 Outer rotation Wing support wheel 8 Rail 9 Post 10 Branch line (for post)
11 Inner rotor blade 12A Inner rotor blade upper support blade 12B Inner rotor blade lower support blade 13 Multipolar generator rotor 14 Rotor cover 16A Inner rotor upper support bearing 16B Inner rotor lower support bearing 17 Inner rotor blade branch line 21 Outside Rotating blade flap 21A Rotating blade flap rotating shaft 21B Rotating blade flap rotation guide fulcrum 21C Rotating blade flap guide groove 22 Inner rotating blade flap

Claims (5)

垂直軸風車で揚力活用のジャイロ型風車あるいはダリュウス型風車で、その回転翼を外側と内側に二重に設置し、それぞれ反対方向に回転するよう翼の向きを設定することで、効率的な発電を可能とすることを特徴とする装置。   Efficient power generation by using a vertical-axis wind turbine and a gyro-type wind turbine or a Darius-type wind turbine that has double-sided rotor blades on the outside and inside and sets the blade orientation to rotate in opposite directions. A device characterized in that 請求項1のジャイロ型風車における回転翼は、NACA型翼で上下のアーム(支持翼)と回転軸で構成し、回転軸を中心に内側回転翼を設置し、その外側に内側回転翼と反対回転する外側回転翼を設置し、同時に反対方向へ回転させるのを特徴とする装置。   The rotor blade in the gyro-type wind turbine according to claim 1 is a NACA-type blade and is composed of upper and lower arms (support blades) and a rotating shaft, an inner rotating blade is installed around the rotating shaft, and opposite to the inner rotating blade. A device characterized by installing a rotating outer rotor blade and simultaneously rotating it in the opposite direction. 請求項1のダリュウス型風車では、長短2本の翼を同一軸に外側と内側に設置し反対回転するよう翼の向きを変えて設置するのを特徴とする装置。   2. The apparatus according to claim 1, wherein two wings of long and short are installed on the same axis on the outer side and the inner side, and the wings are changed in direction so as to rotate counterclockwise. 請求項2のジャイロ型風車の場合、アーム(支持翼)に飛行機翼のフラップと同様の翼を設置し、あるいは翼の角度を変えることが可能な状態に設置して、抗力を活用することで起動を容易にするのを特徴とする装置。   In the case of the gyro-type windmill according to claim 2, by installing a wing similar to the flap of an airplane wing on an arm (support wing) or by installing it in a state in which the angle of the wing can be changed, Device characterized by facilitating activation. 請求項1の外側回転翼の下側アームに多極型発電機の固定子(回転可能な状態に設置する)に直結し、内側回転翼の下側アームに多極型発電機の回転子を直結し、固定子と回転子を反対回転させ効率的発電を可能にするのを特徴とする装置。   The lower arm of the outer rotor blade according to claim 1 is directly connected to the stator of the multipolar generator (installed in a rotatable state), and the rotor of the multipolar generator is connected to the lower arm of the inner rotor blade. A device that is directly connected and rotates the stator and the rotor in the opposite direction to enable efficient power generation.
JP2006337147A 2006-12-14 2006-12-14 Vertical axis lift utilizing type counter-rotating wind turbine generator Pending JP2008150963A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009141922A1 (en) * 2008-05-23 2009-11-26 有限会社新宮アトリエ Windmill device
EP2133918A2 (en) 2008-06-09 2009-12-16 Sony Corporation Solid-state imaging device, drive method thereof and electronic apparatus
JP2015042871A (en) * 2014-08-15 2015-03-05 義雄 井内田 Wind power generation device (w4-2 type) which replaces nuclear power generation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009141922A1 (en) * 2008-05-23 2009-11-26 有限会社新宮アトリエ Windmill device
EP2133918A2 (en) 2008-06-09 2009-12-16 Sony Corporation Solid-state imaging device, drive method thereof and electronic apparatus
JP2015042871A (en) * 2014-08-15 2015-03-05 義雄 井内田 Wind power generation device (w4-2 type) which replaces nuclear power generation

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