TWI726895B - Rotation speed control method of windmill and wind power generation device - Google Patents
Rotation speed control method of windmill and wind power generation device Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/002—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being horizontal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
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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
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- 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
提供風車之旋轉速度控制方法,其在低風速下令轉子之旋轉速度加速至一定之速度,藉此,大幅地提高發電效率。 A method for controlling the rotation speed of a windmill is provided, which accelerates the rotation speed of the rotor to a certain speed at a low wind speed, thereby greatly improving the power generation efficiency.
進行如下之反覆控制:當風速檢測元件檢測到可輸出來自發電機之發電電力之特定平均風速時,令馬達自動地始動,進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之速度,而令馬達停止,當風速檢測元件再次檢測到特定平均風速時,再次令馬達自動地始動,進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之速度,而令馬達停止。 Perform the following repetitive control: when the wind speed detection element detects a specific average wind speed that can output the generated power from the generator, the motor is automatically started, and it accelerates and rotates until the peripheral speed or rotation speed of the rotor reaches a specific speed. The motor stops. When the wind speed detection element detects a specific average wind speed again, the motor is automatically started again, and the motor is accelerated to rotate until the peripheral speed or rotation speed of the rotor reaches a specific speed, and the motor is stopped.
Description
本發明是涉及即便在低風速之下亦可提高發電效率、且在強風時可抑制轉子超過額定旋轉數之情形並效率佳地發電之風車之旋轉速度控制方法及風力發電裝置。 The present invention relates to a method for controlling the rotation speed of a windmill and a wind power generation device that can improve the power generation efficiency even at low wind speeds, and can prevent the rotor from exceeding the rated number of rotations during strong winds, and generate power efficiently.
風力發電裝置一般而言是機械損失大,且在低風速下,轉子會因為發電機之齒槽效應轉矩而難以順暢地旋轉,故要到達開始發電之啟動風速將很花時間,發電效率低。為了解決此問題,本發明之發明人開發了縱軸風力發電裝置,其風車具有揚力型葉片(舉例來說,參考專利文獻1、2)。
Generally speaking, wind power generation devices have large mechanical losses, and at low wind speeds, the rotor will be difficult to rotate smoothly due to the cogging torque of the generator. Therefore, it will take a long time to reach the start-up wind speed to start power generation, and the power generation efficiency is low. . In order to solve this problem, the inventor of the present invention has developed a longitudinal-axis wind power generation device, the windmill of which has lift-type blades (for example, refer to
另一方面,當強風時會發生由超速旋轉造成之障礙。關於控制高速旋轉之方法,舉例來說有專利文獻3之記載。
On the other hand, when there is strong wind, obstacles caused by over-speed rotation will occur. Regarding the method of controlling high-speed rotation, for example, there is a description in
[專利文獻1]日本特許第4907073號公報 [Patent Document 1] Japanese Patent No. 4907073
[專利文獻2]日本特開2011-169292號公報 [Patent Document 2] JP 2011-169292 A
[專利文獻3]日本特開2011-220218號公報 [Patent Document 3] JP 2011-220218 A
上述專利文獻1及2所記載之縱軸風車是改善縱軸風車之啟動性,而具有如下之特徵:即便1~1.5m/s程度之微風速亦可令轉子之旋轉開始,且即便在例如平均風速2m/s程度之低風速下亦可效率佳地發電。
The vertical axis windmill described in
另外,還具有如下特徵:當轉子之圓周速度或旋轉速度到達一定之值,則會藉由附壁效應而令在葉片產生之揚力增大,故葉片之旋轉加速且由發電負荷造成之失速變得不易發生,發電效率提高。 In addition, it also has the following characteristics: when the circumferential speed or rotation speed of the rotor reaches a certain value, the lifting force generated on the blade is increased by the Coanda effect, so the rotation of the blade is accelerated and the stall caused by the power generation load is changed. It is not easy to happen, and the efficiency of power generation is improved.
然而,由於風向經常會改變,故適合風車之風速不會長期持續,如果可將低風速下旋轉之轉子之旋轉速度藉由轉子自力來加速,而加速到可效率佳地旋轉之一定之圓周速度,則可更加提高發電效率。 However, since the wind direction often changes, the wind speed suitable for windmills will not last for a long time. If the rotation speed of the rotor rotating at low wind speed can be accelerated by the rotor's own force, it can be accelerated to a certain circumferential speed that can rotate efficiently. , It can further improve the power generation efficiency.
另外,關於專利文獻1、2記載之縱軸風車,由於旋轉效率高,故在強風時若超過一定之風速,則轉子可能會超過額定旋轉數而旋轉。因此,可以想到的是事先設定轉子之額定平均風速,當風速達到額定平均風速或是超過的情況下,藉由剎車裝置等將主軸之旋轉強制減速而令轉子不超過額定旋轉數來旋轉。
In addition, the vertical axis windmills described in
然而,若如此地設計,則將無法在強風時效率佳地發電。 However, if designed in this way, it will not be able to generate electricity efficiently in strong winds.
另一方面,於上述專利文獻3記載之風車之旋轉控制方法是當旋轉速度測量器測量到風車之旋轉速度在預定範圍連續一定時間以上時對其控制,但此方法無法控制在低風速時風車以不啟動之狀態來旋轉的情況。
On the other hand, the method for controlling the rotation of a windmill described in
本發明是鑑於上述課題而建構,目的在於提供如下之風車之旋轉速度控制方法及風力發電裝置:在低風速下,可藉由令轉子之旋轉速度加速至一定之速度而大幅地提高發電效率,且在強風時可抑制轉子超過額定旋轉數之情形並效率佳地發電。 The present invention is constructed in view of the above problems, and aims to provide the following wind turbine rotation speed control method and wind power generation device: at low wind speeds, the rotor rotation speed can be accelerated to a certain speed to greatly improve the power generation efficiency. And in strong wind, it can prevent the rotor from exceeding the rated number of rotations and generate electricity efficiently.
根據本發明之風車之旋轉速度控制方法,上述課題是如下地解決。 According to the method for controlling the rotation speed of a windmill of the present invention, the above-mentioned problems are solved as follows.
(1)在與發電機連繫之風車之轉子之主軸連接有原動機;進行如下反覆控制:當風速檢測元件檢測到可輸出來自前述發電機之發電電力之特定平均風速時,令前述原動機自動地始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到特定之值,而令前述原動機停止,當前述風速檢測元件再次檢測到前述特定平均風速時,令前述原動機自動地再始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到前述特定之值,而令原動機停止。 (1) A prime mover is connected to the main shaft of the rotor of the windmill connected to the generator; the following repetitive control is performed: when the wind speed detection element detects a specific average wind speed that can output the generated power from the generator, the prime mover is automatically Start, accelerate rotation until the peripheral speed or rotation speed of the rotor reaches a specific value, and stop the prime mover. When the wind speed detection element detects the specified average wind speed again, the prime mover is automatically restarted to accelerate rotation Until the peripheral speed or rotation speed of the aforementioned rotor reaches the aforementioned specific value, the prime mover is stopped.
根據如此之方法,由於當風速檢測元件檢測到可輸出來自發電機之發電電力之特定平均風速時,令原動機自動地始動,進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之值,而可令發電機旋轉,故即便是在轉子 之旋轉速度低之低風速下而發電量少之條件下,亦可提高發電效率。 According to this method, when the wind speed detecting element detects the specific average wind speed that can output the generated power from the generator, the prime mover is automatically started to accelerate and rotate until the peripheral speed or rotation speed of the rotor reaches a specific value. Make the generator rotate, so even if it’s on the rotor The power generation efficiency can also be improved under the conditions of low rotation speed and low wind speed and low power generation.
另外,若進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之值,則即便沒有原動機之協助,亦可利用揚力讓轉子以自力加速並旋轉,因此,原動機運作之時間是較短,可抑制將原動機驅動之動力源之消費量。 In addition, if the rotation is accelerated until the circumferential speed or rotation speed of the rotor reaches a specific value, even without the assistance of the prime mover, the rotor can be accelerated and rotated by its own force by the lift force. Therefore, the prime mover operates for a shorter time and can be restrained. The consumption of the power source that drives the prime mover.
(2)在與主發電機連繫之風車之轉子之主軸連接有可切換成發電機之馬達;進行如下反覆控制:當風速檢測元件檢測到預先決定之平均風速時,令前述馬達自動地始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到特定之值,而令前述馬達停止,當前述風速檢測元件檢測到前述轉子之額定平均風速或旋轉速度檢測元件檢測到前述轉子之額定旋轉數時,令前述馬達切換成輔助發電機而藉由前述主軸之旋轉來發電,當前述風速檢測元件再次檢測到預先決定之平均風速時,令前述輔助發電機切換成馬達而再始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到前述特定之值,而令前述馬達停止。 (2) A motor that can be switched to a generator is connected to the main shaft of the rotor of the windmill connected to the main generator; the following repetitive control is performed: when the wind speed detection element detects the predetermined average wind speed, the aforementioned motor is automatically started , To accelerate rotation until the peripheral speed or rotation speed of the rotor reaches a specific value, and the motor is stopped, when the wind speed detection element detects the rated average wind speed of the rotor or the rotation speed detection element detects the rated rotation number of the rotor When the motor is switched to an auxiliary generator to generate electricity by the rotation of the main shaft, when the wind speed detecting element detects the predetermined average wind speed again, the auxiliary generator is switched to a motor and restarted to accelerate rotation Until the peripheral speed or rotation speed of the rotor reaches the specified value, the motor is stopped.
根據如此之方法,由於當風速檢測元件檢測到預先決定之平均風速時,令馬達自動地始動,進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之值,而可令發電機旋轉,故即便是在轉子之旋轉速度低之低風速下而發電量少之條件下,亦可提高發電效率。 According to this method, when the wind speed detection element detects the predetermined average wind speed, the motor is automatically started and accelerated to rotate until the circumferential speed or rotation speed of the rotor reaches a specific value, so that the generator can be rotated. It can also improve the efficiency of power generation under the conditions of low wind speed and low power generation when the rotating speed of the rotor is low.
另外,若進行加速旋轉直到轉子之圓周速度或旋轉速度達到特定之值,則即便沒有馬達之協助,亦可利 用揚力讓轉子以自力加速並旋轉,因此,馬達運作之時間是較短,可抑制將馬達驅動之動力源之消費量。 In addition, if the rotation is accelerated until the peripheral speed or rotation speed of the rotor reaches a specific value, it can be beneficial even without the assistance of the motor. The rotor is used to accelerate and rotate by its own force. Therefore, the operation time of the motor is shorter, which can suppress the consumption of the power source for driving the motor.
再者,由於當檢測到轉子之額定平均風速或轉子之額定旋轉數的情況下,會將馬達切換成輔助發電機而發電,因此,可在強風時以主發電機與輔助發電機雙方來發電,發電效率大幅地提高。而且,當馬達切換成輔助發電機,轉子會因為由回生發電造成之剎車扭矩而減速,故即便不設剎車裝置等來減速,亦可防止轉子超過額定旋轉數而旋轉之情形。 Furthermore, when the rated average wind speed of the rotor or the rated number of rotations of the rotor is detected, the motor will be switched to an auxiliary generator to generate electricity. Therefore, both the main generator and the auxiliary generator can be used to generate electricity in strong winds. , The power generation efficiency is greatly improved. Moreover, when the motor is switched to an auxiliary generator, the rotor will decelerate due to the braking torque caused by the regenerative power generation. Therefore, even if the braking device is not provided to decelerate, the rotor can be prevented from rotating beyond the rated number of rotations.
根據本發明之風力發電裝置,上述課題是如下地解決。 According to the wind power generator of the present invention, the above-mentioned problems are solved as follows.
(3)包含:具有轉子之風車,該轉子具有複數個葉片;發電機,與前述轉子之主軸連接;原動機,與前述主軸連接,可使主軸旋轉;動力源,令前述原動機始動;旋轉速度檢測元件,檢測前述轉子之圓周速度或旋轉速度;風速檢測元件,檢測朝向前述轉子之平均風速;控制元件,控制前述風車之旋轉速度;前述控制元件是進行如下反覆控制:當前述風速檢測元件檢測到特定平均風速時令前述原動機始動,令前述轉子加速旋轉直到前述旋轉速度檢測元件檢測到前述轉子之圓周速度或旋轉速度達到特定之值,而令前述原動機停止,當前述風速檢測元件再次檢測到前述特定平均風速時,令前述原動機再始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到前述特定之值,而令前述原動機 停止。 (3) Including: a windmill with a rotor, the rotor has a plurality of blades; a generator, connected to the main shaft of the aforementioned rotor; a prime mover, connected to the aforementioned main shaft to allow the main shaft to rotate; a power source to start the aforementioned prime mover; rotation speed detection The element detects the circumferential speed or rotation speed of the aforementioned rotor; the wind speed detection element detects the average wind speed toward the aforementioned rotor; the control element controls the rotation speed of the aforementioned windmill; the aforementioned control element performs the following iterative control: when the aforementioned wind speed detection element detects The specific average wind speed starts the prime mover and accelerates the rotation of the rotor until the rotational speed detecting element detects that the peripheral speed of the rotor or the rotational speed reaches a specific value, and the prime mover is stopped. When the wind speed detecting element detects the foregoing again When the average wind speed is specified, the prime mover is restarted, and the rotation is accelerated until the peripheral speed or rotation speed of the rotor reaches the specified value, so that the prime mover Stop.
根據如此之構成,控制元件是控制成當風速檢測元件檢測到特定平均風速時令原動機自動地始動,令轉子加速旋轉直到旋轉速度檢測元件檢測到轉子之圓周速度或旋轉速度達到特定之速度,而令原動機停止,因此,即便是在轉子之旋轉速度低之低風速下而發電量少之條件下,亦可提高發電效率。 According to such a configuration, the control element is controlled to automatically start the prime mover when the wind speed detection element detects a specific average wind speed, so that the rotor accelerates and rotates until the rotation speed detection element detects the peripheral speed of the rotor or the rotation speed reaches a specific speed, and Stop the prime mover. Therefore, the power generation efficiency can be improved even at low wind speeds where the rotor rotation speed is low and the power generation is small.
另外,由於將風車之旋轉速度之控制所必要之最小限之構成構件追加在包含有具有複數個揚力型葉片之轉子與發電機之公知之風力發電裝置即可提高低風速下之發電效率,故提供容易實施且可效率佳地發電之風力發電裝置成為可能。 In addition, the addition of the minimum structural components necessary for the control of the rotation speed of the windmill to a known wind power generation device including a rotor with a plurality of lift-type blades and a generator can improve the power generation efficiency at low wind speeds. It is possible to provide a wind power generation device that is easy to implement and can generate electricity efficiently.
再者,控制元件是控制成令原動機旋轉直到轉子之圓周速度或旋轉速度達到轉子可藉由揚力加速而效率佳地旋轉之特定速度,之後,令原動機停止,因此,原動機運作之時間是較短,與發電量相比,將原動機驅動之動力源之消費量是小。 Furthermore, the control element is controlled to make the prime mover rotate until the peripheral speed of the rotor or the rotation speed reaches a specific speed at which the rotor can be accelerated by lifting force and rotate efficiently, and then the prime mover is stopped. Therefore, the prime mover operates for a shorter time Compared with power generation, the consumption of the power source that drives the prime mover is small.
(4)在上述(3)項,前述主軸與原動機透過電磁離合器而連接;藉由前述控制元件進行如下控制:當前述風速檢測元件檢測到特定平均風速時,令前述電磁離合器自動地連接,當前述轉子之圓周速度或旋轉速度達到特定之值時,令前述電磁離合器自動地切斷。 (4) In the above item (3), the main shaft and the prime mover are connected through an electromagnetic clutch; the control element performs the following control: when the wind speed detection element detects a specific average wind speed, the electromagnetic clutch is automatically connected, when When the peripheral speed or rotation speed of the rotor reaches a specific value, the electromagnetic clutch is automatically cut off.
根據如此之構成,藉由控制元件而控制成當轉子之圓周速度或旋轉速度達到特定之值時令電磁離合器切 斷,可正確地且以短時間而控制離合器之斷續,故可更效率佳地利用風力而發電。 According to such a configuration, the control element is used to control the electromagnetic clutch to cut when the peripheral speed or the rotation speed of the rotor reaches a specific value. It can control the discontinuity of the clutch accurately and in a short time, so the wind power can be used more efficiently to generate electricity.
(5)在上述(3)或(4)項,前述原動機是馬達,且令該馬達始動之電源是藉由前述發電機發電之電力。 (5) In the above item (3) or (4), the aforementioned prime mover is a motor, and the power source for starting the motor is the electricity generated by the aforementioned generator.
根據如此之構成,由於令馬達始動之動力源是使用藉由發電機發電之電力之一部分,故不需要外部之電源設備,可在沒有外部電源設備的場所設置風力發電裝置。 According to such a configuration, since the power source for starting the motor uses a part of the electric power generated by the generator, no external power supply equipment is required, and a wind power generation device can be installed in a place without external power supply equipment.
(6)在上述(3)或(4)項,前述原動機是馬達,且令該馬達始動之電源是藉由太陽能發電板發電之電力。 (6) In the above item (3) or (4), the aforementioned prime mover is a motor, and the power source for starting the motor is electricity generated by solar panels.
根據如此之構成,由於令馬達始動之動力源是使用藉由太陽能發電板發電之電力,故可減少藉由發電機發電之電力之消費,可有效地使用該電力。 According to such a configuration, since the power source for starting the motor uses the electric power generated by the solar power generation panel, the consumption of the electric power generated by the generator can be reduced, and the electric power can be used effectively.
(7)包含:具有轉子之風車,該轉子具有複數個葉片;主發電機,與前述轉子之主軸連接;馬達,與前述主軸連接,可切換成發電機;旋轉速度檢測元件,檢測前述轉子之圓周速度或旋轉速度;風速檢測元件,檢測朝向前述轉子之平均風速;切換元件,電性地將前述馬達切換成發電機;控制元件,控制前述風車之旋轉速度;前述控制元件是進行如下反覆控制:當前述風速檢測元件檢測到預先決定之平均風速時令前述馬達始動,令前述轉子加速旋轉直到前述旋轉速度檢測元件檢測到前述轉子之圓周速度或旋轉速度達到特定之值,而令前述馬達停止,當前述風速檢測元件檢測到前述轉子之額定平均風速 或前述旋轉速度檢測元件檢測到轉子之額定旋轉數時,前述切換元件令前述馬達切換成輔助發電機,且控制成與前述主軸連接而發電,當前述風速檢測元件再次檢測到預先決定之平均風速時,藉由前述切換元件令前述輔助發電機切換成馬達而再始動,進行加速旋轉直到前述轉子之圓周速度或旋轉速度達到前述特定之速度,而令前述馬達停止。 (7) Containing: a windmill with a rotor, the rotor having a plurality of blades; a main generator, connected to the main shaft of the aforementioned rotor; a motor, connected to the aforementioned main shaft, which can be switched to a generator; a rotation speed detecting element, which detects the difference of the aforementioned rotor Circumferential speed or rotation speed; wind speed detection element, which detects the average wind speed towards the aforementioned rotor; switching element, which electrically switches the aforementioned motor to a generator; control element, which controls the rotation speed of the aforementioned windmill; the aforementioned control element performs the following iterative control : When the wind speed detection element detects the predetermined average wind speed, the motor is started, and the rotor is accelerated to rotate until the rotation speed detection element detects that the peripheral speed or the rotation speed of the rotor reaches a specific value, and the motor is stopped , When the aforementioned wind speed detecting element detects the rated average wind speed of the aforementioned rotor Or when the rotation speed detection element detects the rated number of rotations of the rotor, the switching element causes the motor to switch to an auxiliary generator and controls it to be connected to the main shaft to generate electricity. When the wind speed detection element detects the predetermined average wind speed again At this time, the auxiliary generator is switched to a motor by the switching element and restarted to accelerate rotation until the peripheral speed or the rotation speed of the rotor reaches the specific speed, and the motor is stopped.
根據如此之構成,控制元件是控制成當風速檢測元件檢測到預先決定之平均風速時令馬達自動地始動,令轉子加速旋轉直到旋轉速度檢測元件檢測到轉子之圓周速度或旋轉速度達到特定之值,而令馬達停止,因此,即便是在轉子之旋轉速度低之低風速下而發電量少之條件下,亦可提高發電效率。 According to such a configuration, the control element is controlled to automatically start the motor when the wind speed detection element detects a predetermined average wind speed, and accelerate the rotation of the rotor until the rotation speed detection element detects that the peripheral speed of the rotor or the rotation speed reaches a specific value , And stop the motor. Therefore, the power generation efficiency can be improved even under the conditions of low wind speed and low power generation when the rotation speed of the rotor is low.
另外,控制元件是控制成令馬達旋轉直到轉子之圓周速度或旋轉速度達到轉子可藉由揚力加速而效率佳地旋轉之特定速度,之後,令馬達停止,因此,馬達運作之時間是較短,與發電量相比,將馬達驅動之動力源之消費量是小。 In addition, the control element is controlled to make the motor rotate until the peripheral speed of the rotor or the rotation speed reaches a specific speed at which the rotor can be accelerated by the lifting force to rotate efficiently, and then stop the motor. Therefore, the operation time of the motor is shorter. Compared with the power generation, the consumption of the power source that drives the motor is small.
再者,控制元件是控制成當檢測到轉子之額定平均風速或轉子之額定旋轉數的情況下,將馬達切換成輔助發電機而發電,因此,可在強風時以主發電機與輔助發電機雙方來發電,發電效率大幅地提高。而且,當馬達切換成輔助發電機,轉子會因為由回生發電造成之剎車扭矩而減速,故即便不設剎車裝置等來減速,亦可防止轉子超 過額定旋轉數而旋轉之情形。 Furthermore, the control element is controlled to switch the motor to an auxiliary generator to generate electricity when the rated average wind speed of the rotor or the rated number of rotations of the rotor is detected. Therefore, the main generator and the auxiliary generator can be used in strong winds. Both parties come to generate electricity, and the power generation efficiency is greatly improved. Moreover, when the motor is switched to an auxiliary generator, the rotor will decelerate due to the braking torque caused by the regenerative power generation. Therefore, even if the braking device is not provided to decelerate, the rotor can be prevented from overshooting. In the case of rotation exceeding the rated number of rotations.
(8)在上述(3)或(7)項,前述風車是具有轉子之縱軸風車或橫軸風車,且該轉子具有在前端部形成有傾斜部之複數個揚力型葉片。 (8) In the above item (3) or (7), the aforementioned windmill is a longitudinal-axis windmill or a horizontal-axis windmill having a rotor, and the rotor has a plurality of lift-type blades with inclined portions formed at the tip.
根據如此之構成,轉子具有在前端部形成有傾斜部之複數個揚力型葉片,具有該轉子之縱軸風車或橫軸風車是以傾斜部來承受碰到葉片之內側面而擴散之氣流,藉此,旋轉力提高而揚力(推力)增大,因此,轉子是從低風速時旋轉,且風速越快則藉由附壁效應在葉片產生之揚力(推力)越增大,葉片藉由揚力加速而轉子效率佳地旋轉。因此,即便將轉子之特定圓周速度或旋轉速度設定在低,亦可維持高的發電效率。 According to such a configuration, the rotor has a plurality of lift-type blades with inclined parts formed at the front end. The vertical axis windmill or the horizontal axis windmill with the rotor receives the airflow diffused by hitting the inner surface of the blades by the inclined parts. Therefore, the rotational force increases and the lift (thrust) increases. Therefore, the rotor rotates from a low wind speed, and the faster the wind speed, the greater the lift (thrust) generated by the wall effect on the blades, and the blades are accelerated by the lift And the rotor rotates efficiently. Therefore, even if the specific peripheral speed or rotation speed of the rotor is set low, high power generation efficiency can be maintained.
根據本發明之風車之旋轉速度控制方法及風力發電裝置,在低風速下,可藉由利用原動機或馬達令轉子之旋轉速度加速至一定之速度而大幅地提高發電效率。 According to the method for controlling the rotation speed of a windmill and the wind power generation device of the present invention, the power generation efficiency can be greatly improved by using a prime mover or a motor to accelerate the rotation speed of the rotor to a certain speed at low wind speeds.
另外,除了該效果,在記載於請求項2或7之發明,由於可在強風時以主發電機與輔助發電機雙方來發電,故可大幅地提高發電效率,並且,當馬達切換成輔助發電機,轉子會因為再生剎車而減速,故即便不設剎車裝置來減速,亦可防止超過額定旋轉數而旋轉之情形。
In addition to this effect, in the invention described in
1‧‧‧風力發電裝置 1‧‧‧Wind power plant
2‧‧‧轉子 2‧‧‧Rotor
3‧‧‧發電機 3‧‧‧Generator
4‧‧‧控制元件 4‧‧‧Control components
5‧‧‧縱主軸 5‧‧‧Vertical spindle
6‧‧‧支持框體 6‧‧‧Support frame
6A‧‧‧軸承 6A‧‧‧Bearing
7A、7B‧‧‧臂 7A, 7B‧‧‧arm
8‧‧‧揚力型葉片 8‧‧‧Yangli blade
8A‧‧‧主部 8A‧‧‧Main part
8B‧‧‧向內傾斜部 8B‧‧‧Inwardly inclined part
9‧‧‧控制器 9‧‧‧Controller
10‧‧‧蓄電池 10‧‧‧Battery
11‧‧‧傳動元件 11‧‧‧Transmission element
11A‧‧‧從動傘齒輪 11A‧‧‧Driven bevel gear
11B‧‧‧驅動傘齒輪 11B‧‧‧Drive bevel gear
12‧‧‧電磁離合器 12‧‧‧Electromagnetic clutch
13‧‧‧減速機 13‧‧‧Reducer
14‧‧‧馬達 14‧‧‧Motor
15‧‧‧驅動軸 15‧‧‧Drive shaft
16‧‧‧輸出軸 16‧‧‧Output shaft
17‧‧‧離合器切換判定部 17‧‧‧Clutch switching judging section
18‧‧‧供電器 18‧‧‧Power Supply
19‧‧‧馬達始動‧停止判定部 19‧‧‧Motor start and stop judging section
20‧‧‧中央處理裝置 20‧‧‧Central Processing Unit
21‧‧‧齒輪 21‧‧‧Gear
22‧‧‧旋轉速度測量感測器 22‧‧‧Rotation speed measurement sensor
23‧‧‧轉子圓周速度判定部 23‧‧‧Rotor peripheral speed judging section
24‧‧‧風速計 24‧‧‧Anemometer
25‧‧‧平均風速判定部 25‧‧‧Average Wind Speed Judgment Department
26‧‧‧太陽能發電板 26‧‧‧Solar power panels
27‧‧‧第2蓄電池 27‧‧‧Second battery
28‧‧‧馬達兼輔助發電機 28‧‧‧Motor and auxiliary generator
29‧‧‧切換開關 29‧‧‧Toggle switch
29A‧‧‧馬達側接點 29A‧‧‧Motor side contact
29B‧‧‧充電側接點 29B‧‧‧Charging side contact
30‧‧‧控制器 30‧‧‧Controller
31‧‧‧馬達‧輔助發電機切換判定部 31‧‧‧Motor‧Auxiliary Generator Switching Judgment Section
32‧‧‧供電器 32‧‧‧Power Supply
33‧‧‧碟片剎車裝置 33‧‧‧Disc brake device
34‧‧‧剎車碟片 34‧‧‧Brake Disc
35‧‧‧托架 35‧‧‧Bracket
36‧‧‧卡鉗 36‧‧‧Calipers
37‧‧‧剎車片 37‧‧‧Brake Pad
38‧‧‧電磁致動器 38‧‧‧Electromagnetic Actuator
39‧‧‧手動剎車裝置 39‧‧‧Manual brake device
40‧‧‧大徑軸部 40‧‧‧Large diameter shaft
41‧‧‧剎車片 41‧‧‧Brake Pad
C‧‧‧翼厚中心線 C‧‧‧Wing thickness centerline
G‧‧‧基礎 G‧‧‧Basic
K‧‧‧齒輪盒 K‧‧‧Gear box
O‧‧‧旋轉軌跡 O‧‧‧Rotation track
W‧‧‧方向 W‧‧‧direction
圖1是與本發明相關之風力發電裝置之第1實施形態的正面圖。 Fig. 1 is a front view of a first embodiment of a wind power generator related to the present invention.
圖2是第1實施形態之風力發電裝置之轉子與臂的擴大平面圖。 Fig. 2 is an enlarged plan view of the rotor and arms of the wind power generator of the first embodiment.
圖3是圖1之III-III線之擴大橫斷平面圖。 Fig. 3 is an enlarged cross-sectional plan view of line III-III of Fig. 1.
圖4是使用第1實施形態之風力發電裝置而用於實施與本發明相關之方法之第1實施形態的流程圖。 Fig. 4 is a flowchart of the first embodiment of the method related to the present invention using the wind turbine generator of the first embodiment.
圖5是與本發明相關之風力發電裝置之第2實施形態的正面圖。 Fig. 5 is a front view of a second embodiment of the wind turbine generator related to the present invention.
圖6是與本發明相關之風力發電裝置之第3實施形態的正面圖。 Fig. 6 is a front view of a third embodiment of the wind power generator related to the present invention.
圖7是使用第3實施形態之風力發電裝置而用於實施與本發明相關之方法之第2實施形態的流程圖。 Fig. 7 is a flowchart of the second embodiment of the method related to the present invention using the wind power generator of the third embodiment.
基於圖面而說明本發明之實施形態。附帶一提,以下之實施形態雖然是針對具有葉片旋轉半徑1m、葉片之翼長1.2m之縱軸風車之風力發電裝置及使用其之風力發電方法而進行說明,但風力發電裝置當然並不限定於此。 The embodiment of the present invention will be described based on the drawings. Incidentally, although the following embodiments describe a wind power generation device with a longitudinal axis windmill with a blade rotation radius of 1m and a blade length of 1.2m, and a wind power generation method using it, the wind power generation device is of course not limited Here.
圖1是顯示與本發明相關之具有縱軸風車之風力發電裝置之第1實施形態(請求項3記載之發明),風力發電裝置1具有縱軸型之轉子2、發電機3、控制風車之旋轉速度之控制元件4。
Fig. 1 shows a first embodiment of a wind power generation device having a longitudinal axis windmill related to the present invention (the invention described in claim 3). The wind
轉子2之縱主軸5是透過軸承6A而令其上下複數部位以旋轉自如的方式被立起地設在基礎G之上面之支持
框體6之中央部所支持。上下各2根之水平之臂7A、7B之內端部是強固地接著在縱主軸5之上部之徑方向對稱位置。
The longitudinal
往垂直方向之左右1對之揚力型葉片(以下簡稱作葉片)8、8之上下兩端部之內側面是強固地接著在各上下之臂7A、7B之外端部。臂7A、7B及葉片8舉例來說是藉由纖維強化合成樹脂而形成。附帶一提,臂7A、7B與葉片8可以是一體成形。
The inner surfaces of the upper and lower ends of a pair of lift-type blades (hereinafter referred to as blades) 8, 8 in the vertical direction are firmly connected to the outer ends of the upper and
葉片8之形狀是與本申請案之發明人開發之日本特許第4907073號公報、日本特開2011-169292號公報所記載之葉片實質相同。
The shape of the
亦即,葉片8之弦長是葉片8之旋轉半徑之20%~50%之長度,翼面積是設定成大。
That is, the chord length of the
如圖3之擴大顯示,葉片8之除了上下兩端部以外之主部8A之橫斷形狀是設定成如下:主部8A之翼厚中心線C之內側之翼厚與外側之翼厚是互相對稱地幾乎等尺寸,且翼厚中心線C是與葉片8之翼厚中心之旋轉軌跡O幾乎重疊。
As shown in the enlargement of Fig. 3, the cross-sectional shape of the
主部8A整體之平面形狀是如圖2所示,以沿著翼厚中心之旋轉軌跡O的方式而圓弧狀地彎曲,其內側面是從前緣之膨起部分至後緣呈現往遠心方向傾斜,當風從後方碰到內側面則將往前方(旋轉方向)推。
The overall plane shape of the
主部8A之截面形狀是近似於旋轉方向之前側之翼厚較厚且隨著往後方而逐漸變薄之標準翼型。
The cross-sectional shape of the
當葉片8旋轉,由於葉片8之內外之旋轉半徑之差,外側面之圓周速度會比內側面還大,沿著外側面而往後方通過之氣流會比沿著內側面之氣流更高速。
When the
因此,在葉片8之後緣部,通過外側面之氣流之壓力會比通過內側面之氣流之壓力還小,由於外側面之附壁效應,葉片8之後緣部之外側面是從後方朝前緣部方向推而有旋轉方向之推力作用於葉片8,令葉片8旋轉。
Therefore, at the rear edge of the
如圖1及圖2所示,在葉片8之上下兩端部形成有往內側(亦即縱主軸5方向)圓弧狀地傾斜之向內傾斜部8B、8B。因為在葉片8之上下之端部形成有向內傾斜部8B,故伴隨著葉片8之旋轉而沿著主部8A之內外之側面往上下方向流動之氣流是藉由附壁效應而沿著上下之向內傾斜部8B、8B之內面及外面往後方(亦即圖2中之W方向)通過,由於其反力而將葉片8往旋轉方向推,所以,即便在低風速下,轉子2亦能以高的旋轉效率來旋轉。
As shown in FIGS. 1 and 2, the upper and lower ends of the
前述之發電機3是設置在基礎G之公知之永久磁石式單相交流或三相交流發電機,其未圖示之轉子軸與縱主軸5之下端部連結。發電機3所發電之電力是透過具有整流器、電壓調節器(皆省略圖示)等之控制器9而在蓄電池10蓄電之後,從蓄電池10朝外部之直流負荷電源供電,或藉由控制器9而朝外部之交流負荷電力系統直接供電。
The
控制器9是調節來自發電機3之輸出電流量而控制往蓄電池10或直流負荷電源輸出之電流、電壓,舉例來說,在轉子2剛剛啟動或轉子2之旋轉速度變慢之低風速
時,以輸出電流量變少的方式控制而減輕施加在發電機3之發電負荷,防止轉子2之失速。
The
附帶一提,亦可以令發電機3是能朝蓄電池10或直流負荷電源系統直接供給電力之直流發電機。
Incidentally, the
在縱主軸5之下部,身為原動機之帶有減速機13之直流馬達14是透過傳動元件11及離合器12而與發電機3並聯連接。傳動元件11是由強固地接著於縱主軸5之從動傘齒輪11A、及以軸線正交的方式與該從動傘齒輪11A咬合之驅動傘齒輪11B來構成,在強固地接著於驅動傘齒輪11B之驅動軸15與減速機13之輸出軸16之間是具有令其動力傳達斷續之離合器12。
At the lower part of the longitudinal
離合器12是使用電性開啟、關閉之公知之電磁離合器。附帶一提,傳動元件11宜收納在如以1點鏈線表示之齒輪盒K而隱藏。
The clutch 12 is a known electromagnetic clutch that is electrically opened and closed. Incidentally, the
控制元件4是具有:離合器切換判定部17;供電器(供電電路)18,與蓄電池10連接,基於由離合器切換判定部17輸出之控制訊號而開啟、關閉。
The
詳細說明雖然是後述,但離合器切換判定部17是當後述之風速計24檢測到特定之平均風速的情況下,朝供電器18輸出開啟之控制訊號,蓄電池10之電力透過供電器18而朝電磁離合器12供電,藉此,電磁離合器12成為連接。
Although the detailed description is described later, the clutch
附帶一提,關於由風速計24進行之檢測平均風速之時間,為了不在低風速下讓發電量大幅地變動,宜以例如3
秒~10秒之間隔來檢測。
Incidentally, with regard to the time for detecting the average wind speed by the
當電磁離合器12成為連接,馬達14之旋轉驅動力是透過減速機13而減速傳達至驅動傘齒輪11B及從動傘齒輪11A,以大的驅動扭矩令縱主軸5旋轉驅動。另外,當藉由離合器切換判定部17而往供電器18輸出關閉之控制訊號,則電磁離合器12切斷,縱主軸5與馬達14間之動力傳達斷絕。
When the
馬達14亦與供電器18連接,基於從控制元件4之馬達始動‧停止判定部19輸出之馬達始動及馬達停止之判定訊號而令來自供電器18之通電開啟、關閉,使馬達14始動或停止。
The
附帶一提,詳細說明雖然是後述,但控制元件4之中央處理裝置(CPU)20是將基於從後述之旋轉速度感測器22及風速計24輸入至轉子圓周速度判定部23及平均風速判定部25之資料而演算處理之判定訊號往上述離合器切換判定部17及馬達始動‧停止判定部19輸出。
Incidentally, although the detailed description is described later, the central processing unit (CPU) 20 of the
在縱主軸5之中間部之適當地方安裝有用於測定旋轉速度之齒輪21,可藉由用旋轉速度測量感測器22來測量該齒輪21之旋轉數,而透過縱主軸5來測量轉子2之旋轉速度。
A
附帶一提,亦可以在縱主軸5之外周面設置例如1個或複數個凸部來取代齒輪21。
Incidentally, instead of the
旋轉速度測量感測器22舉例來說是使用磁性旋轉速度測量感測器、超音波旋轉速度測量感測器、旋轉編碼器等
之非接觸型感測器。
The rotation
藉由旋轉速度測量感測器22而測量到之旋轉速度是輸入至控制元件4之轉子圓周速度判定部23,控制元件4之中央處理裝置20是基於輸入之旋轉速度而演算轉子2之平均圓周速度。
The rotation speed measured by the rotation
亦即,由於轉子2之外周長度(2πr)可由轉子2之葉片8之旋轉半徑(r)來確定,故在該外周長度(2πr)乘上縱主軸5之旋動速度(rpm)即可換算成圓周速度(m/s)。
That is, since the outer circumferential length (2πr) of the
附帶一提,轉子2之圓周速度亦可以藉由使用感測器測量葉片8之角速度而求出。亦即,在葉片8之角速度(rad/s)乘上其旋轉半徑(r)之值會是轉子2之圓周速度。
Incidentally, the circumferential velocity of the
當轉子圓周速度判定部23判定成轉子2之平均圓周速度已達到身為特定圓周速度之5m/s的情況下,朝離合器切換判定部17及馬達始動‧停止判定部19輸出判定訊號。附帶一提,旋轉速度測量感測器22與轉子圓周速度判定部23是相當於與本發明相關之旋轉速度檢測元件。
When the rotor peripheral
於轉子2之上方,作為風速檢測元件之風速計24是安裝在圖示之支柱,用來檢測朝向轉子2之風之每個一定時間之平均風速。藉由該風速計24而測量到之平均風速是輸入至控制元件4之平均風速判定部25,由中央處理裝置(CPU)20進行演算處理而當判定成風速達到特定平均風速(亦即,舉例來說是可從發電機3輸出發電電力之風速2m/s)時,朝前述之離合器切換判定部17及馬達始動‧停止判定部19輸出判定訊號。
Above the
接著,參考在圖4顯示之流程圖來說明用到上述與第1實施形態相關之風力發電裝置1之本發明之方法之第1實施形態(請求項1記載之發明)。
Next, with reference to the flowchart shown in FIG. 4, the first embodiment of the method of the present invention (the invention described in claim 1) using the above-mentioned
首先,藉由風速計24而測定轉子2旋轉時之平均風速(S1),平均風速判定部25基於控制元件4之中央處理裝置20之演算處理結果而判定是否檢測到平均風速成為例如特定平均風速2m/s(S2)。附帶一提,平均風速在2m/s以下的情況下,電磁離合器12是關閉狀態。
First, the
當平均風速判定部25判定成平均風速已達到2m/s的情況下,藉由從離合器切換判定部17朝供電器18輸出之判定訊號,令電磁離合器12通電,使電磁離合器12開啟(S3),而將驅動軸15與輸出軸16連接。
When the average wind
另外,同時,藉由從馬達始動‧停止判定部19輸出之馬達始動訊號,令供電器18開啟,而使馬達14自動地始動(S4),透過傳動元件11強制地使縱主軸5旋轉,而令轉子2加速旋轉(S5)。當判定成平均風速未達到2m/s的情況下,回到步驟S1,繼續測定平均風速。
In addition, at the same time, the
附帶一提,雖然在藉由馬達14令轉子2之旋轉加速之期間亦可藉由發電機3進行發電,但亦可以是只在馬達14之始動開始起之一定時間藉由控制器9而令來自發電機3之輸出電流量自動地減少。
Incidentally, although the
如此,由於可令在加速剛開始時施加於發電機3之負荷減輕,故可藉由馬達14迅速地將轉子2加速。
In this way, since the load applied to the
判定平均風速是否達到2m/s之理由是因為以下
已獲得實際證明:在具有前述之形狀之揚力型葉片8之縱軸型之轉子2,當例如葉片8之旋轉半徑是1m、葉片8之翼長是1.2m的情況下,若平均風速達到2m/s,則轉子2之旋轉藉由在葉片8產生之揚力而加速,以可從發電機3輸出發電電力之速度而旋轉。
The reason for judging whether the average wind speed reaches 2m/s is because of the following
Practical proof has been obtained: in the case of the
所以,若當轉子2在平均風速2m/s之低風速下旋轉時令馬達14始動而令轉子2之旋轉立即加速,則在葉片8產生揚力而更加地加速,可更有效率地進行發電。
Therefore, if the
令轉子2之旋轉加速之後,藉由旋轉速度測量感測器22而測量縱主軸5之平均旋轉數,中央處理裝置20基於該旋轉數而換算出轉子2之圓周速度,將其結果朝轉子圓周速度判定部23輸出(S6),轉子圓周速度判定部23判定轉子2之圓周速度是否達到超過平均風速2m/s之特定圓周速度、例如5m/s(S7)。
After accelerating the rotation of the
判定轉子2之圓周速度是否達到5m/s之理由是因為以下已獲得實際證明:在具有前述之形狀之揚力型葉片8之縱軸型之轉子2,若轉子2之圓周速度達到5m/s,則因為葉片8之上下兩端部之向內傾斜部8B之作用及附壁效應而令在葉片8產生之揚力(推力)增加,轉子2即便沒有馬達14之協助亦加速至超過風速之圓周速度並效率佳地旋轉而發電,且由發電負荷造成之失速變得不易發生。
The reason for judging whether the peripheral speed of the
附帶一提,關於圓周速度5m/s情況下之轉子2之旋轉速度,由於圓周速度、旋轉速度及外周長度具有如前述之關係,且當例如葉片8之旋轉半徑(r)是1m的情況下,
轉子2之外周長度(2πr)是6.28m。所以,將圓周速度5m/s除以外周長度6.28m並乘以60來換算成分速,則轉子2之旋轉速度是約48rpm。
Incidentally, with regard to the rotation speed of the
當轉子圓周速度判定部23判定成轉子2之圓周速度已達到5m/s的情況下,離合器切換判定部17朝供電器18輸出關閉之判定訊號,藉此,令電磁離合器12關閉(S8),同時,藉由從馬達始動‧停止判定部19發出之馬達停止訊號,令馬達14停止(S9),使轉子2之加速旋轉停止。
When the rotor peripheral
如此,由於當轉子2之圓周速度達到5m/s時電磁離合器12關閉,由馬達14之齒槽效應轉矩造成之旋轉負荷變成不傳達至縱主軸5,故轉子2之旋轉效率提升。
In this way, since the
當轉子圓周速度判定部23判定成轉子2之圓周速度未達到5m/s的情況下,回到步驟S5,維持著電磁離合器12連接之狀態而藉由馬達14繼續令轉子2之旋轉加速。
When the rotor peripheral
在令馬達14停止而令轉子2之加速旋轉停止之後,藉由風速計24而再次測定平均風速(S10),當平均風速判定部25再次檢測到平均風速2m/s的情況下(S11),回到步驟S3,與前述同樣,使電磁離合器12開啟,同時,使馬達14自動地再始動,令轉子2之旋轉加速。藉由令該步驟S3~S11迴圈狀反覆而控制轉子2之旋轉速度,可大幅地提高發電效率。
After stopping the
如以上說明,在與上述第1實施形態相關之風車之旋轉速度控制方法,當轉子2在平均風速2m/s之低風速下旋轉的情況下,為了令轉子2達到可一面自力加速一面
效率佳地旋轉之圓周速度5m/s,藉由馬達14立即加速,反覆控制轉子2之旋轉速度,藉此,即便是在轉子2之旋轉速度低之風速下而發電量少之條件下,亦可沒有令發電電力大幅地變動且提高發電效率。
As explained above, in the rotation speed control method of the windmill related to the above-mentioned first embodiment, when the
另外,使馬達14停止之轉子2之圓周速度是設定在例如5m/s之低速,由於轉子2之圓周速度達到5m/s時,即便馬達14自動停止,葉片亦會藉由揚力而繼續旋轉,在此期間有風吹的話則旋轉獲得加速。所以,不需要頻繁地令馬達14運作,可令其電力消費量少。
In addition, the peripheral speed of the
接著,參考圖5來說明與本發明相關之風力發電裝置之第2實施形態(請求項6記載之發明)。附帶一提,與上述第1實施形態之風力發電裝置同樣之構件是僅附加相同之符號而省略詳細之說明。 Next, the second embodiment of the wind power generator related to the present invention (the invention described in claim 6) will be described with reference to FIG. 5. Incidentally, the same components as those of the wind power generator of the first embodiment described above are only assigned the same reference numerals, and detailed descriptions are omitted.
第2實施形態之風力發電裝置是在上述第1實施形態之風力發電裝置1加上太陽能發電板26、及將藉由該太陽能發電板26發電之電力予以蓄電之第2蓄電池27而構成。
The wind power generator of the second embodiment is configured by adding a solar
藉由發電機3發電之電力是與上述第1實施形態之風力發電裝置1同樣地蓄電在第1蓄電池10。控制元件4是與第1實施形態相同之構成。
The electric power generated by the
第2蓄電池27是與控制元件4之供電器18連接,當從馬達始動‧停止判定部19輸出馬達始動訊號時,第2蓄電池27之電力是透過供電器18而朝馬達14供給。
The
另外,如虛線所示,太陽能發電板26所發電之過剩電
力是亦可蓄電在第1蓄電池10。
In addition, as shown by the dotted line, the excess electricity generated by the
使用第2實施形態之風力發電裝置而進行之風車之旋轉速度之控制是利用與使用上述第1實施形態之風力發電裝置1而進行之方法相同之方法,故省略其詳細說明。
The control of the rotation speed of the windmill using the wind turbine generator of the second embodiment uses the same method as that performed by the
在第2實施形態之風力發電裝置,由於馬達14之驅動電力是使用藉由太陽能發電板26來發電而蓄電在第2蓄電池27之電力,故可不消耗藉由發電機3所發電之電力,可有效地使用該電力。
In the wind power generator of the second embodiment, since the driving power of the
附帶一提,考慮到太陽能發電板26之發電量減少的情況,如虛線所示,亦可以藉由第1蓄電池10之電力或是第1蓄電池10與第2蓄電池27雙方之電力來驅動馬達14。
Incidentally, considering that the amount of power generated by the solar
接著,參考圖6,來說明與本發明相關之風力發電裝置之第3實施形態(請求項7記載之發明)。附帶一提,與上述第1實施形態之風力發電裝置1同樣之構件是僅附加相同之符號而省略詳細之說明。
Next, referring to Fig. 6, a third embodiment of the wind power generator related to the present invention (the invention described in claim 7) will be described. Incidentally, the same components as those of the
與第3實施形態相關之風力發電裝置是以與轉子2之縱主軸5連接之發電機來作為主發電機3,並使用可切換成發電機之馬達兼輔助發電機28來代替第1實施形態記載之馬達14。該馬達兼輔助發電機28舉例來說是可切換成發電機之以永久磁石建構磁場式直流馬達、或永久磁石型交流同步馬達等,可透過切換開關29而切換成使縱主軸5旋轉的情況下之馬達、及藉由縱主軸5之旋轉來發電的情
況下之輔助發電機。
The wind power generator related to the third embodiment uses a generator connected to the longitudinal
切換開關29是具有馬達側接點29A與充電側接點29B之中立回歸式(常開式)開關,當切換開關29從中立位置切換至馬達側接點29A的情況下,馬達兼輔助發電機28是切換成馬達,藉由第2蓄電池27之電力而驅動。附帶一提,於馬達兼輔助發電機28使用永久磁石型交流同步馬達的情況下,在馬達兼輔助發電機28與切換開關29之間附加有身為DC-AC相互轉換電路之變流器。
The switch 29 is a neutral return type (normally open) switch with a motor-
當切換開關29從中立位置切換至充電側接點29B的情況下,馬達兼輔助發電機28是切換成輔助發電機,藉由輔助發電機所發電之電力是透過具有電壓調節器等之控制器30而對將太陽能發電板26之電力蓄電之第2蓄電池27充電。
When the switch 29 is switched from the neutral position to the charging
附帶一提,亦可以是如下情形:將馬達兼輔助發電機28切換成輔助發電機而發電之過剩電力是透過控制器30而亦對第1蓄電池10充電,第1蓄電池10與第2蓄電池27並聯連接而從第1、第2蓄電池10、27雙方朝外部之直流負荷電源等供電。
Incidentally, it may also be a situation where the excess power generated by switching the motor and
控制元件4是除了具有與第1實施形態同樣之離合器切換判定部17、中央處理裝置20、轉子圓周速度判定部23及平均風速判定部25之外,還具有馬達‧輔助發電機切換判定部31、以及與第2蓄電池27連接且基於從離合器切換判定部17輸出之控制訊號而開啟、關閉之供電器(供電電路)32。
The
當風速計24檢測到預先決定之平均風速2m/s的情況下,離合器切換判定部17朝供電器32輸出開啟之控制訊號,第2蓄電池27之電力透過供電器32而朝電磁離合器12供電,藉此,電磁離合器12變成連接。
When the
若電磁離合器12變成連接,則馬達兼輔助發電機28與縱主軸5是透過傳動元件11之驅動傘齒輪11B與從動傘齒輪11A而連接。另外,當從離合器切換判定部17往供電器32輸出關閉之控制訊號的情況下,電磁離合器12被切斷,馬達兼輔助發電機28與縱主軸5之間之動力傳達斷絕。
When the
前述之切換開關29是基於從控制元件4之馬達‧輔助發電機切換判定部31輸出之判定訊號而進行切換,令馬達兼輔助發電機28作為馬達而始動或停止、切換成輔助發電機而始動或停止。
The aforementioned switch 29 is switched based on the determination signal output from the motor/auxiliary generator switching
附帶一提,控制元件4之中央處理裝置(CPU)20是將基於從旋轉速度感測器22及風速計24輸入至轉子圓周速度判定部23及平均風速判定部25之資料而演算處理之判定訊號往離合器切換判定部17及馬達‧輔助發電機切換判定部31輸出。
Incidentally, the central processing unit (CPU) 20 of the
當轉子圓周速度判定部23判定成轉子2之平均圓周速度已達到例如身為特定圓周速度之5m/s的情況下,朝離合器切換判定部17及馬達‧輔助發電機切換判定部31輸出判定訊號。
When the rotor peripheral
當平均風速判定部25判定成檢測到風速是平均
風速2m/s的情況下、及檢測到轉子2之額定平均風速例如13m/s的情況下,朝上述之離合器切換判定部17、及馬達‧輔助發電機切換判定部31輸出判定訊號。
When the average wind
在縱主軸5之中間部設有以機械方式將轉子2之旋轉減速或停止之剎車裝置、例如碟片剎車裝置33。
A brake device, such as a
碟片剎車裝置33具有:大直徑之剎車碟片34,強固地接著在縱主軸5之中間部;卡鉗36,以收納剎車碟片34之周端部之一部分的方式,可朝上下方向移動且不能旋轉地安裝在托架35,該托架是固定在支持框體6之中間部適當地方;上下1對之剎車片37、37,設在卡鉗36之內部,可擠壓剎車碟片34之周端部之上下之面;由螺線管所成之電磁致動器38,收納在卡鉗36之內部,可藉由面向下方之柱塞(plunger)之下端而擠壓上部之剎車片37之上面。
The
電磁致動器38是當轉子2之圓周速度或旋轉速度超過預先決定之額定值(容許值)的情況下,因為從控制元件4之轉子圓周速度判定部23發出之供電訊號而開啟,令柱塞朝下方突出,令上部之剎車片37壓接在剎車碟片34之周端部之上面,藉由其反力使卡鉗36往上方移動,而令下部之剎車片37壓接在剎車碟片34之周端部之下面。藉由此時之摩擦力,制動力作用在剎車碟片34及縱主軸5,轉子2之旋轉會減速或停止。
The
在碟片剎車裝置33之下方設有手動剎車裝置39,當強風時或風力發電裝置發生異常事態的情況等,藉由手動操作而使轉子2之旋轉緊急停止。關於此手動剎車
裝置39,舉例來說,可使用公知之手動剎車裝置,其具有:左右1對之半圓形之剎車片41、41,以與在縱主軸5之中間部形成之大徑軸部40之外周面對向且可前進後退的方式,受未圖示之不動之支持體支持;手動操作桿(省略圖示),用於將兩剎車片41推擠在大徑軸部40之外周面。
A
接著,參考在圖7顯示之流程圖來說明用到上述與第3實施形態相關之風力發電裝置之本發明之方法之第2實施形態(請求項2記載之發明)。 Next, with reference to the flowchart shown in FIG. 7, the second embodiment of the method of the present invention (the invention described in claim 2) using the wind power generator related to the third embodiment described above will be described.
首先,藉由風速計24而測定轉子2旋轉時之平均風速(S1),平均風速判定部25基於控制元件4之中央處理裝置20之演算處理結果而判定是否檢測到預先決定之平均風速2m/s或更高(S2)。附帶一提,平均風速未滿2m/s的情況下,電磁離合器12是關閉狀態。
First, the average wind speed (S1) when the
當平均風速判定部25判定成平均風速已達到2m/s或更高的情況下,藉由從離合器切換判定部17朝供電器32輸出之判定訊號,令電磁離合器12通電,使電磁離合器12開啟(S3),而將驅動軸15與輸出軸16連接。同時,藉由從馬達‧輔助發電機切換判定部31輸出之切換訊號,令位在中立位置之切換開關29切換至馬達側接點29A(S4)。
When the average wind
藉此,使馬達兼輔助發電機28切換成馬達而自動地始動(S5),透過傳動元件11強制地使縱主軸5旋轉,令轉子2加速旋轉(S6)。當判定成平均風速未達到2m/s的情況下,回到步驟S1,繼續測定平均風速。
Thereby, the motor and
判定平均風速是否成為2m/s或更高之理由是與
前述之理由相同,所以,若當轉子2在平均風速2m/s程度之低風速下旋轉時使馬達兼輔助發電機28切換成馬達而令轉子2之旋轉立刻加速,則在葉片8產生揚力而更加地加速,可更有效率地進行發電。
The reason for determining whether the average wind speed becomes 2m/s or higher is related to
The foregoing reasons are the same. Therefore, when the
令轉子2之旋轉加速之後,藉由旋轉速度測量感測器22而測量縱主軸5之平均旋轉數,中央處理裝置20基於該旋轉數而換算出轉子2之圓周速度,將其結果朝轉子圓周速度判定部23輸出(S7),轉子圓周速度判定部23判定是否檢測到轉子2之圓周速度成為超過平均風速2m/s之特定圓周速度、例如5m/s(S8)。附帶一提,判定轉子2之圓周速度是否5m/s之理由是與前述之理由相同,因為以下已獲得實際證明:若圓周速度達到5m/s,則因為葉片8之上下兩端部之向內傾斜部8b之作用及附壁效應而令作用在葉片8之揚力(推力)增加,葉片8即便沒有馬達之協助亦藉由揚力而加速至超過風速之圓周速度並效率佳地旋轉而發電,且由發電負荷造成之失速變得不易發生。
After accelerating the rotation of the
當轉子圓周速度判定部23判定成轉子2之圓周速度已達到5m/s的情況下,離合器切換判定部17朝供電器32輸出關閉之判定訊號,藉此,令電磁離合器12關閉(S9),同時,藉由從馬達‧輔助發電機切換判定部31輸出之切換訊號,令切換開關29回歸到中立位置而關閉(S10),令馬達停止(S11),而使轉子2之加速旋轉停止。
When the rotor peripheral
如此,由於當轉子2之圓周速度達到5m/s時電磁離合器12關閉,由馬達之齒槽效應轉矩造成之旋轉負荷變
成不傳達至縱主軸5,故轉子2之旋轉效率提升。
In this way, since the
當轉子圓周速度判定部23判定成轉子2之圓周速度未達到5m/s的情況下,回到步驟S6,維持著電磁離合器12連接之狀態而藉由馬達繼續令轉子2之旋轉加速。
When the rotor peripheral
在令馬達停止而令轉子2之加速旋轉停止之後,藉由風速計24而再次測定平均風速(S12),當平均風速判定部25檢測到轉子2之額定平均風速13m/s的情況下(S13),基於從離合器切換判定部17輸出至供電器32之訊號而使電磁離合器12開啟(S14),同時,基於從馬達‧輔助發電機切換判定部31輸出之訊號而令位在中立位置之切換開關29切換至充電側接點29B側(S15)。
After stopping the motor and stopping the acceleration and rotation of the
當切換開關29切換至充電側接點29B,馬達兼輔助發電機28是切換成輔助發電機而始動(S16),藉由縱主軸5令輔助發電機之旋轉子(電樞)旋轉驅動而發電。
When the switch 29 is switched to the charging
於此發電時,轉子2之旋轉能量會被轉換成電能量,藉此,再生剎車作用在轉子2而減速。
When generating electricity, the rotational energy of the
所以,即便強風時亦可防止轉子2超過額定旋轉數而旋轉。藉由輔助發電機而發電之電力是透過切換開關29及控制器30而對第2蓄電池27充電。
Therefore, even when the wind is strong, it is possible to prevent the
附帶一提,可藉由控制器30控制來自輔助發電機之輸出電流量,調整施加在輔助發電機之發電負荷,藉此,以轉子2不超過額定旋轉數而旋轉的方式進行控制。
Incidentally, the
另外,若在平均風速超過13m/s之強風時,控制成令轉子2以稍微低於額定旋轉數之旋轉速度而旋轉,則
輔助發電機之發電效率增高。當未檢測到額定平均風速13m/s的情況下,回到步驟S12,繼續測定平均風速。
In addition, if the average wind speed exceeds 13m/s in strong winds, the
當切換成輔助發電機而進行發電時,藉由風速計24測定平均風速(S17),當平均風速判定部25判定成已降低至平均風速2m/s以下的情況下(S18),回到步驟S4,與前述同樣,令切換開關29切換至馬達側接點29A,使馬達兼輔助發電機28從至今為止之輔助發電機切換至馬達而自動地再始動,令轉子2加速旋轉直到圓周速度到達5m/s。
When switching to an auxiliary generator for power generation, the average wind speed is measured by the anemometer 24 (S17), and when the average wind
如以上說明,在與上述第2實施形態相關之風車之旋轉速度控制方法,當轉子2在平均風速2m/s程度之低風速下旋轉的情況下,葉片8藉由揚力而加速,馬達兼輔助發電機28切換成馬達而進行立刻加速直到達成可效率佳地旋轉之圓周速度5m/s,反覆控制轉子2之旋轉速度,藉此,即便在低風速下亦可沒有令發電電力大幅地變動且提高發電效率。
As explained above, in the rotation speed control method of the windmill related to the second embodiment, when the
另外,由於馬達兼輔助發電機28會在風速達到例如額定平均風速13m/s的情況下切換成輔助發電機而發電,故強風時可藉由主發電機3與輔助發電機雙方而發電,發電效率大幅地提高。而且,當馬達兼輔助發電機28切換至輔助發電機,轉子2會因為由回生發電造成之剎車扭矩而減速,故可防止超過額定旋轉數而旋轉之情形。
In addition, since the motor and
當將馬達兼輔助發電機28切換成輔助發電機亦不足以防止轉子2之超速旋轉的情況下,可令碟片剎車裝置33一起使用,故即便強風時亦無轉子2超速旋轉之虞。
When switching the motor and
另外,當即便令碟片剎車裝置33運作仍無法防止轉子2之超速旋轉的情況、風力發電裝置發生異常事態的情況等,可操作手動剎車裝置39來將轉子2強制停止,故可防範轉子2之葉片8破損之問題。
In addition, when the
本發明並非限定於上述實施形態,在不超脫本發明之要旨之範圍內實施如下之各種變形或變更是可行的。 The present invention is not limited to the above-mentioned embodiment, and various modifications or changes as described below are possible within the scope not deviating from the gist of the present invention.
雖然在上述各實施形態是於檢測到平均風速成為例如2m/s時令馬達始動而令轉子2之旋轉加速,但亦可以是於檢測到平均風速2m/s時之縱主軸5之平均旋轉速度、或檢測到平均風速2m/s時之轉子2之圓周速度時,令馬達始動而令轉子2加速。
Although in each of the above embodiments, the motor is started to accelerate the rotation of the
另外,雖然上述各實施形態是藉由馬達將轉子2之圓周速度加速到5m/s而使馬達停止,但如前述,因為轉子2之圓周速度可換算成旋轉速度,故亦可以是當旋轉速度測量感測器22測量到圓周速度達到5m/s時之轉子2之旋轉速度時,令馬達停止。
In addition, although the above embodiments use the motor to accelerate the peripheral speed of the
雖然上述實施形態是用2m/s來作為令馬達始動之平均風速之一例,但這可以對應葉片8之旋轉半徑之大小來適宜地設定。
Although the above embodiment uses 2m/s as an example of the average wind speed for starting the motor, this can be appropriately set according to the size of the radius of rotation of the
亦即,當葉片8之旋轉半徑是比上述實施形態之1m還小的情況下,轉子2之旋轉扭矩變小,會更易於因為發電負荷而失速,故可將平均風速設定在2m/s以上,令馬達是在轉子2之旋轉速度高時始動。
That is, when the radius of rotation of the
另外,當葉片8之旋轉半徑比1m還大的情況下,即便轉子2之旋轉速度低,旋轉扭矩亦大而可發電,故可設定成2m/s以下之平均風速,令馬達是在轉子2之旋轉速度低時始動。
In addition, when the radius of rotation of the
雖然上述實施形態是於轉子2之圓周速度達到5m/s時令馬達停止,但令馬達停止的情況下之轉子2之圓周速度是因應葉片8之旋轉半徑之大小而適宜地設定。
Although the above embodiment stops the motor when the peripheral speed of the
雖然上述實施形態是在令馬達始動之電源使用對藉由發電機3或太陽能發電板26而發電之電力進行蓄電之蓄電池10、27,但亦可以不使用如此之蓄電於蓄電池10、27之電力,而利用發電機3或陽能發電板26所發電之電力來將馬達直接始動。
Although the above embodiment uses the
此情況下,可以是透過AC-DC變流器等之轉換器來將馬達始動。另外,當風力發電裝置之設置現場附近有商用電源的情況下,亦可藉由該電力來將馬達始動。 In this case, the motor can be started by a converter such as an AC-DC converter. In addition, when there is a commercial power source near the installation site of the wind power generation device, the motor can also be started by the power.
在第1實施形態之風力發電裝置,亦可以用交流馬達取代上述直流式之馬達14來作為令縱主軸5旋轉之原動機,另外,舉例來說,亦可以使用與藉由商用電源等驅動之油壓幫浦連接而藉由壓油來旋轉之油壓馬達、或與藉由商用電源等驅動之空氣壓縮機連接而藉由壓縮空氣來旋轉之氣動馬達等之流體壓馬達。
In the wind power generator of the first embodiment, an AC motor may be used instead of the above-mentioned
雖然在上述各實施形態是使用電磁離合器12來令減速機13之輸出軸16之動力傳達變成斷續,但亦可以使用例如遠心離合器等之機械式離合器。此情況下,將不需
要控制元件4之離合器切換判定部17。
Although the
附帶一提,某些情況下,會省略令驅動軸15與減速機13之輸出軸16之動力傳達變成斷續之電磁離合器12等之離合器機構。
Incidentally, in some cases, a clutch mechanism such as an electromagnetic clutch 12 that causes the power transmission of the
雖然在與上述第3實施形態相關之風力發電裝置是將當馬達兼輔助發電機28切換成輔助發電機而發電之電力蓄電在第2蓄電池27,但亦可將第2蓄電池27省略而對第1蓄電池10充電。此情況下,可考慮將第1蓄電池10之數量增加或令蓄電容量變大。另外,在該情況下,可以是使用第1蓄電池10來供給令馬達兼輔助發電機28作為馬達而始動之電力、及令電磁離合器12運作之電力。
Although in the wind power generator related to the third embodiment described above, the electric power generated when the motor and
本發明亦可適用於如日本特許第4907073號公報之圖4所記載之將揚力型葉片多段狀地固定於縱主軸5之風力發電裝置、或如日本特許第4740580公報所記載之具有令葉片之前端部朝主軸方向(受風方向)傾斜之橫軸風車之風力發電裝置。
The present invention can also be applied to a wind power generation device in which lift-type blades are fixed to the longitudinal
1‧‧‧風力發電裝置 1‧‧‧Wind power plant
2‧‧‧轉子 2‧‧‧Rotor
3‧‧‧發電機 3‧‧‧Generator
4‧‧‧控制元件 4‧‧‧Control components
5‧‧‧縱主軸 5‧‧‧Vertical spindle
6‧‧‧支持框體 6‧‧‧Support frame
6A‧‧‧軸承 6A‧‧‧Bearing
7A、7B‧‧‧臂 7A, 7B‧‧‧arm
8‧‧‧揚力型葉片 8‧‧‧Yangli blade
8A‧‧‧主部 8A‧‧‧Main part
8B‧‧‧向內傾斜部 8B‧‧‧Inwardly inclined part
9‧‧‧控制器 9‧‧‧Controller
10‧‧‧蓄電池 10‧‧‧Battery
11‧‧‧傳動元件 11‧‧‧Transmission element
11A‧‧‧從動傘齒輪 11A‧‧‧Driven bevel gear
11B‧‧‧驅動傘齒輪 11B‧‧‧Drive bevel gear
12‧‧‧電磁離合器 12‧‧‧Electromagnetic clutch
13‧‧‧減速機 13‧‧‧Reducer
14‧‧‧馬達 14‧‧‧Motor
15‧‧‧驅動軸 15‧‧‧Drive shaft
16‧‧‧輸出軸 16‧‧‧Output shaft
17‧‧‧離合器切換判定部 17‧‧‧Clutch switching judging section
18‧‧‧供電器 18‧‧‧Power Supply
19‧‧‧馬達始動‧停止判定部 19‧‧‧Motor start and stop judging section
20‧‧‧中央處理裝置 20‧‧‧Central Processing Unit
21‧‧‧齒輪 21‧‧‧Gear
22‧‧‧旋轉速度測量感測器 22‧‧‧Rotation speed measurement sensor
23‧‧‧轉子圓周速度判定部 23‧‧‧Rotor peripheral speed judging section
24‧‧‧風速計 24‧‧‧Anemometer
25‧‧‧平均風速判定部 25‧‧‧Average Wind Speed Judgment Department
G‧‧‧基礎 G‧‧‧Basic
K‧‧‧齒輪盒 K‧‧‧Gear box
Claims (4)
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
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JP2015-136679 | 2015-07-08 | ||
JP2015136679A JP6609128B2 (en) | 2015-07-08 | 2015-07-08 | Windmill rotational speed control method |
JP2015-136680 | 2015-07-08 | ||
JP2015136680A JP6609129B2 (en) | 2015-07-08 | 2015-07-08 | Wind power generator |
JP2015-179397 | 2015-09-11 | ||
JP2015179406A JP6917674B2 (en) | 2015-09-11 | 2015-09-11 | Wind power generator |
JP2015179397A JP6917673B2 (en) | 2015-09-11 | 2015-09-11 | Windmill rotation speed control method |
JP2015-179406 | 2015-09-11 |
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TW201708696A TW201708696A (en) | 2017-03-01 |
TWI726895B true TWI726895B (en) | 2021-05-11 |
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TW105121585A TWI726895B (en) | 2015-07-08 | 2016-07-07 | Rotation speed control method of windmill and wind power generation device |
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KR (1) | KR20180052601A (en) |
CN (1) | CN107850052A (en) |
TW (1) | TWI726895B (en) |
WO (1) | WO2017006658A1 (en) |
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CN108167124B (en) * | 2018-02-23 | 2024-01-09 | 济宁圣峰环宇新能源技术有限公司 | Single-shaft double-type wind power generation equipment |
JP2019152117A (en) * | 2018-03-01 | 2019-09-12 | オルガノ株式会社 | Energy supply system |
TR201920004A1 (en) * | 2019-12-12 | 2021-06-21 | Ahmet Cem Yalcin | Innovation to increase electricity generation capacity and efficiency in wind turbines |
EP4248087A1 (en) * | 2020-11-23 | 2023-09-27 | Waldemar Piskorz | System for accelerating wind turbine rotation |
WO2023187927A1 (en) * | 2022-03-28 | 2023-10-05 | 義廣 里村 | Power source amplification power generation system |
CN117175854A (en) * | 2022-05-25 | 2023-12-05 | 王敬儒 | Generator, wind power generation device and independent power grid system |
KR102514976B1 (en) * | 2022-10-26 | 2023-03-29 | 범진에너지건설(주) | Wind power generator for constant speed ratation |
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JPH08322297A (en) * | 1995-05-24 | 1996-12-03 | Yamaha Motor Co Ltd | Wind power generating apparatus |
JP2003314429A (en) * | 2002-04-17 | 2003-11-06 | Energy Products Co Ltd | Wind power generator |
JP2005188468A (en) * | 2003-12-26 | 2005-07-14 | Fjc:Kk | Multi-stage blade type vertical shaft wind mill |
JP2008106700A (en) * | 2006-10-26 | 2008-05-08 | Fueroo:Kk | Wind power generating device |
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US4464579A (en) * | 1982-06-17 | 1984-08-07 | Control Data Corporation | Derrieus wind turbine electric generating system |
ES2441641T3 (en) * | 2003-10-22 | 2014-02-05 | Global Energy Co., Ltd. | Vertical axis wind turbine |
JP2008199783A (en) * | 2007-02-13 | 2008-08-28 | Seiko Epson Corp | Generator utilizing fluid force |
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2016
- 2016-06-01 KR KR1020187003714A patent/KR20180052601A/en not_active Application Discontinuation
- 2016-06-01 WO PCT/JP2016/066212 patent/WO2017006658A1/en active Application Filing
- 2016-06-01 CN CN201680039975.2A patent/CN107850052A/en active Pending
- 2016-07-07 TW TW105121585A patent/TWI726895B/en not_active IP Right Cessation
Patent Citations (4)
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JPH08322297A (en) * | 1995-05-24 | 1996-12-03 | Yamaha Motor Co Ltd | Wind power generating apparatus |
JP2003314429A (en) * | 2002-04-17 | 2003-11-06 | Energy Products Co Ltd | Wind power generator |
JP2005188468A (en) * | 2003-12-26 | 2005-07-14 | Fjc:Kk | Multi-stage blade type vertical shaft wind mill |
JP2008106700A (en) * | 2006-10-26 | 2008-05-08 | Fueroo:Kk | Wind power generating device |
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WO2017006658A1 (en) | 2017-01-12 |
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TW201708696A (en) | 2017-03-01 |
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