JP2003148321A - Wind power generation device - Google Patents
Wind power generation deviceInfo
- Publication number
- JP2003148321A JP2003148321A JP2001352128A JP2001352128A JP2003148321A JP 2003148321 A JP2003148321 A JP 2003148321A JP 2001352128 A JP2001352128 A JP 2001352128A JP 2001352128 A JP2001352128 A JP 2001352128A JP 2003148321 A JP2003148321 A JP 2003148321A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- hydraulic
- solenoid valve
- valve
- emergency solenoid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は風力発電装置に関
し、特に緊急時に回転翼をフェザーリング状態にするた
めの改良を施した風力発電装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine generator, and more particularly to a wind turbine generator which is improved to put a rotor blade into a feathering state in an emergency.
【０００２】[0002]
【従来の技術】周知の如く、風力発電装置においては、
回転翼の回転力を発電機に伝達して発電を行うため、風
の強さが変わると出力は出過ぎる事を防止するため回転
翼を適宜なピッチ角に制御して、入ってきた風に応じて
発電する方式になっている。特に、風が非常に強くなっ
た時や風車の安全装置が異常を検出したときに、装置本
体の強度限界を超える恐れがあるので、回転翼のピッチ
角を変更し風を完全に逃がす、いわゆるフェザーリング
を行っている。As is well known, in a wind turbine generator,
Since the rotating force of the rotor blades is transmitted to the generator to generate electricity, the rotor blades are controlled to an appropriate pitch angle to prevent excessive output when the wind strength changes, depending on the incoming wind. To generate electricity. Especially when the wind becomes very strong or when the safety device of the wind turbine detects an abnormality, the strength limit of the device body may be exceeded, so the pitch angle of the rotor blades is changed to let the wind escape completely. I'm doing feather ring.
【０００３】図３（Ａ），（Ｂ）は従来の風力発電装置
の説明図を示す。ここで、図３（Ａ）は同装置の通常時
の全体図、図３（Ｂ）は同装置の一構成を示す危急電磁
弁のＯＦＦ時（危急時）の状態を示す。FIGS. 3A and 3B are explanatory views of a conventional wind turbine generator. Here, FIG. 3 (A) is an overall view of the apparatus in a normal state, and FIG. 3 (B) shows a state in which an emergency electromagnetic valve showing one configuration of the apparatus is off (in an emergency).
【０００４】図中の符番１１は油圧シリンダーを示し、
ロッド側チャバー１ａのロッド２に回転翼３が配置され
ている。前記油圧シリンダー１のヘッド側チャンバー１
ｂには、増速機４、発電機５が順次接続されている。前
記油圧シリンダー１には、危急電磁弁６、サーボ弁７が
電気的に接続されている。また、前記危機電磁弁６、サ
ーボ弁７同士も電気的に接続され、両者は油タンク
（Ｔ）、ＡＣＣ：アキュムレータ付き油圧源（Ｐ）に夫
々接続されている。Reference numeral 11 in the drawing indicates a hydraulic cylinder,
The rotor 3 is arranged on the rod 2 of the rod-side chaver 1a. Head side chamber 1 of the hydraulic cylinder 1
A speed increaser 4 and a generator 5 are sequentially connected to b. An emergency solenoid valve 6 and a servo valve 7 are electrically connected to the hydraulic cylinder 1. The crisis solenoid valve 6 and the servo valve 7 are also electrically connected to each other, and both are connected to an oil tank (T) and an ACC: hydraulic pressure source (P) with an accumulator, respectively.
【０００５】[0005]
【発明が解決しようとする課題】図３の構成の風力発電
装置は、緊急時には危急電磁弁６をｏｆｆにして油を１
１ｂ室に導く事で、油圧シリンダー１を駆動し、回転翼
３をフェザーリング状態にもっていく構成となってい
る。しかし、従来の装置の場合、油圧源の容量がこの緊
急停止（フェザーリング動作する速さ）に支配的であ
り、危急電磁弁６、ポンプ、アキュームレータ等油を大
量に流すために大型のものを要し、装置が大型化すると
いう問題があった。In the wind turbine generator having the structure shown in FIG. 3, the emergency electromagnetic valve 6 is turned off in the event of an emergency, and oil
By guiding it to the chamber 1b, the hydraulic cylinder 1 is driven to bring the rotary blades 3 into a feathering state. However, in the case of the conventional device, the capacity of the hydraulic power source is dominant in this emergency stop (speed of feathering operation), and a large one such as the emergency solenoid valve 6, the pump, the accumulator, etc. is required to flow a large amount of oil. That is, there is a problem that the device becomes large.
【０００６】本発明はこうした事情を考慮してなされた
もので、危急電磁弁の油圧回路構成に改良を施すことに
より、通常の油圧シリンダの動作速度より回転翼のピッ
チを早く動かす事が可能であるとともに、回転翼をフェ
ザーリング状態に戻す時間が短くなり、もって駆動源で
ある油圧ポンプの容量を削減したりアキュムレータの容
量削減又は廃止を図り、油圧関連装置の小型化が可能な
風力発電装置を提供することを目的とする。The present invention has been made in consideration of these circumstances, and by improving the hydraulic circuit configuration of the emergency solenoid valve, it is possible to move the pitch of the rotor blades faster than the operating speed of a normal hydraulic cylinder. At the same time, the time required to return the rotor blades to the feathering state is shortened, thus reducing the capacity of the hydraulic pump, which is the drive source, or reducing or eliminating the capacity of the accumulator, and making it possible to downsize hydraulic-related equipment. The purpose is to provide.
【０００７】また、本発明は、従来の危急電磁弁やサー
ボ弁の他、油圧シリンダー、危急電磁弁及びサーボ弁と
共に電気的に接続し油圧回路を開閉する動作弁を設ける
ことにより、上記と同様、通常の油圧シリンダの動作速
度より回転翼のピッチを早く動かす事が可能であるとと
もに、回転翼をフェザリング状態に戻す時間が短くな
り、もって駆動源である油圧ポンプの容量を削減したり
アキュムレータの容量削減又は廃止を図り、油圧関連装
置の小型化が可能な風力発電装置を提供することを目的
とする。In addition to the conventional emergency solenoid valve and servo valve, the present invention is similar to the above by providing an operating valve that electrically connects with the hydraulic cylinder, the emergency solenoid valve and the servo valve to open and close the hydraulic circuit. , It is possible to move the pitch of the rotor blades faster than the operating speed of a normal hydraulic cylinder, and the time required to return the rotor blades to the feathering state is shortened, thus reducing the capacity of the hydraulic pump that is the drive source and accumulator. It is an object of the present invention to provide a wind turbine generator capable of reducing the capacity or eliminating the capacity and reducing the size of hydraulic equipment.
【０００８】[0008]
【課題を解決するための手段】本願第１の発明は、風を
受けた回転翼による回転力を増速機を介して発電機に伝
えて発電を行う風力発電装置において、前記回転翼のピ
ッチ角を制御できるように連結された油圧シリンダー
と、前記油圧シリンダーに油圧的に接続され電気的に制
御を行う危急電磁弁と、前記油圧シリンダー、危急電磁
弁に夫々油圧的に接続され電気的に制御を行うサーボ弁
とを有し、前記サーボ弁とともに前記危急電磁弁からも
作動油を油圧シリンダーに供給することにより、大量の
作動油が油圧シリンダーに供給されることで油圧シリン
ダーのストローク速度が速くなる油圧回路を持つことを
特徴とする風力発電装置である。According to a first aspect of the present invention, in a wind turbine generator for transmitting electric power to a generator via a speed increaser, the rotational force of the rotor blade that receives wind to generate electric power is provided. A hydraulic cylinder connected to control the angle, an emergency solenoid valve hydraulically connected to the hydraulic cylinder to electrically control, and a hydraulic cylinder electrically connected to the hydraulic cylinder and the emergency solenoid valve, respectively. With a servo valve for controlling, by supplying hydraulic oil to the hydraulic cylinder from the emergency solenoid valve together with the servo valve, a large amount of hydraulic oil is supplied to the hydraulic cylinder, thereby increasing the stroke speed of the hydraulic cylinder. A wind turbine generator characterized by having a hydraulic circuit that speeds up.
【０００９】本願第２の発明は、風を受けた回転翼によ
る回転力を増速機等を介して発電機に伝えて発電を行う
風力発電装置において、前記回転翼のピッチ角を制御で
きるように連結された油圧シリンダーと、前記油圧シリ
ンダーに油圧的に接続され電気的に制御を行う危急電磁
弁と、前記油圧シリンダーに夫々油圧的に接続された電
気的な制御を行うサーボ弁と差動動作弁を有し、前記サ
ーボ弁とともに前記危急電磁弁からも作動油を油圧シリ
ンダーに供給することにより、その結果として作動油を
油圧シリンダーに供給すると前記動作弁は同じ流量でも
大きいストロークを持つことを特徴とする風力発電装置
である。According to a second aspect of the present invention, in a wind turbine generator that transmits the rotational force of a rotor blade that receives wind to a generator via a speed increaser or the like to generate electric power, the pitch angle of the rotor blade can be controlled. A hydraulic cylinder connected to the hydraulic cylinder, an emergency solenoid valve hydraulically connected to the hydraulic cylinder for electrical control, and a servo valve differentially hydraulically connected to the hydraulic cylinder for performing electrical control. By having a working valve and supplying hydraulic oil from the emergency solenoid valve together with the servo valve to the hydraulic cylinder, as a result, when working oil is supplied to the hydraulic cylinder, the working valve has a large stroke even at the same flow rate. Is a wind turbine generator.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施例について図
面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１１】（実施例１）図１（Ａ）〜（Ｄ）及び図４
を参照する。ここで、図１（Ａ）は本実施例１に係る風
力発電装置の概略説明図、図１（Ｂ）は同装置の油圧シ
リンダーの説明図、図１（Ｃ）は危急電磁弁における油
の入出力の関係を示す説明図、図１（Ｄ）は前記風力発
電装置の一構成である危急電磁弁のＯＦＦ時（危急時）
の説明を示す。また、 図４は回転翼の通常時及びフェ
ザーリング時の状態を示す。(Embodiment 1) FIGS. 1A to 1D and FIG.
Refer to. Here, FIG. 1 (A) is a schematic explanatory view of the wind turbine generator according to the first embodiment, FIG. 1 (B) is an explanatory view of a hydraulic cylinder of the same, and FIG. 1 (C) is a diagram of oil in an emergency solenoid valve. FIG. 1 (D) is an explanatory view showing the relationship between input and output, and FIG. 1 (D) shows an OFF state of an emergency solenoid valve that is one configuration of the wind turbine generator (during emergency)
The following is an explanation. Further, FIG. 4 shows the state of the rotor blade during normal operation and during feathering.
【００１２】図中の符番１１は、油圧シリンダーを示
す。この油圧シリンダー１１はロッド側チャバー１１ａ
とヘッド側チャンバー１１ｂを有し、ロッド側チャンバ
ー１１ａにはロッド１２が配置されている。このロッド
１２には回転翼１３が連結されており、ピッチ角を操作
する。前記油圧シリンダー１１のヘッド側チャンバー１
１ｂには、増速機１４、発電機１５が順次接続されてい
る。前記油圧シリンダー１１には、電気的に制御される
危機電磁弁１６、サーボ弁１７が油圧的に接続されてい
る。また、前記危機電磁弁１６、サーボ弁１７同士も油
圧的に接続され、油圧的に油タンク（Ｔ）、ＡＣＣ：ア
キュームレータ付き油圧源（Ｐ）に夫々接続されてい
る。Reference numeral 11 in the drawing indicates a hydraulic cylinder. This hydraulic cylinder 11 has a rod side chabber 11a.
And a head side chamber 11b, and a rod 12 is arranged in the rod side chamber 11a. A rotary blade 13 is connected to the rod 12 to control the pitch angle. Head side chamber 1 of the hydraulic cylinder 11
A speed increaser 14 and a generator 15 are sequentially connected to 1b. An electrically controlled crisis solenoid valve 16 and a servo valve 17 are hydraulically connected to the hydraulic cylinder 11. The crisis solenoid valve 16 and the servo valve 17 are hydraulically connected to each other, and are hydraulically connected to an oil tank (T) and an ACC: hydraulic source with accumulator (P), respectively.
【００１３】なお、図１の装置において、前記危急電磁
弁１６における油の入出力状態を模式的に示すと、図１
（Ｃ）のようになる。ここで、Ｑ１は油圧シリンダー１
１のヘッド側に入る油の量を、Ｑ２は油圧シリンダー１
１のロッド側から出る油の量を、Ｑ０は油圧源から油圧
シリンダーへ供給される油の量を示す。In the apparatus of FIG. 1, the oil input / output state of the emergency solenoid valve 16 is schematically shown in FIG.
It becomes like (C). Where Q 1 is hydraulic cylinder 1
Q 2 is the hydraulic cylinder 1
No. 1 shows the amount of oil flowing out from the rod side, and Q 0 shows the amount of oil supplied from the hydraulic pressure source to the hydraulic cylinder.
【００１４】上記実施例１によれば、危急電磁弁１６を
用いた構成とすることにより、緊急時に危急電磁弁１６
が図１（Ｄ）に示すようにＯＦＦすると、油圧シリンダ
ー１１のヘッド側に供給する油量Ｑ１はロッド側から流
出する流量Ｑ２により補充されるため、油圧源からの油
量Ｑ０より著しく大きくなる。具体的には、例えばロッ
ド側のシリンダー断面積をヘッド側のシリンダー断面積
の３／５を選定すれば、緊急時にヘッド側に供給される
油はシリンダー自身で３／５を得られるため、油圧源か
らは差し引き従来の方法と比べ２／５の流量で十分とな
る。According to the first embodiment, the emergency solenoid valve 16 is used, so that the emergency solenoid valve 16 can be used in an emergency.
There Then OFF as shown in FIG. 1 (D), since the oil amount Q 1 supplied to the head side of the hydraulic cylinder 11 is replenished by the flow rate Q 2 to which flows from the rod side, the oil amount Q 0 from the hydraulic source Noticeably larger. Specifically, for example, if the cylinder cross-sectional area on the rod side is selected to be 3/5 of the cylinder cross-sectional area on the head side, the oil supplied to the head side in an emergency can obtain 3/5 by the cylinder itself. Subtracting from the source, a flow rate of 2/5 is sufficient compared to the conventional method.
【００１５】また、従来、ポンプ流量だけでは緊急動作
に追従させるため、アキュムレータを使用して流量を補
完していたが、実施例１ではこのアキュムレータの小型
化又は廃止が実現できる。具体的には、前記サーボ弁１
７から作動油を油圧シリンダー１１に供給するととも
に、危急電磁弁１６からも作動油を油圧シリンダー１１
に供給できるので、大量の作動油が油圧シリンダー１１
に供給される事で油圧シリンダのストローク速度が速く
なる油圧回路を持つことになる。従って、通常の油圧シ
リンダ１１の動作速度より回転翼１３のピッチを早く動
かすことができるとともに、回転翼１３をフェザーリン
グ状態に戻す時間が短くなり、もって駆動源である油圧
ポンプの容量を削減したり、アキュムレータの容量削減
又は廃止を図り、油圧関連装置の小型化ができる。Further, conventionally, an accumulator is used to supplement the flow rate in order to follow the emergency operation only with the pump flow rate, but in the first embodiment, the accumulator can be downsized or eliminated. Specifically, the servo valve 1
7 supplies the hydraulic oil to the hydraulic cylinder 11, and also supplies the hydraulic oil from the emergency solenoid valve 16 to the hydraulic cylinder 11.
Can be supplied to the hydraulic cylinder 11
The hydraulic circuit has a hydraulic circuit in which the stroke speed of the hydraulic cylinder is increased by being supplied to. Therefore, the pitch of the rotary blades 13 can be moved faster than the normal operating speed of the hydraulic cylinder 11, and the time for returning the rotary blades 13 to the feathering state is shortened, thereby reducing the capacity of the hydraulic pump that is the drive source. In addition, the capacity of the accumulator can be reduced or eliminated, and the hydraulic equipment can be downsized.
【００１６】（実施例２）図２（Ａ），（Ｂ）を参照す
る。ここで、図２（Ａ）は本実施例２に係る風力発電装
置の概略説明図、図２（Ｂ）は同装置の一構成である危
急電磁弁のＯＦＦ時（危急時）の説明を示す。但し、図
１と同部材は同符番を付して説明を省略する。(Embodiment 2) Reference is made to FIGS. 2 (A) and 2 (B). Here, FIG. 2 (A) is a schematic explanatory view of the wind turbine generator according to the second embodiment, and FIG. 2 (B) is an explanation when the emergency electromagnetic valve, which is one configuration of the wind turbine generator, is OFF (during emergency). . However, the same members as those in FIG.
【００１７】本実施例２は、従来装置（図３）と比べ、
油圧シリンダー１１、危急電磁弁１６及びサーボ弁１７
に夫々油圧的に接続する差動動作弁１８を具備すること
を特徴とする。The second embodiment is different from the conventional device (FIG. 3) in that
Hydraulic cylinder 11, emergency solenoid valve 16 and servo valve 17
And a differential operation valve 18 hydraulically connected to each other.
【００１８】実施例２によれば、作動動作弁１８を有し
た構成にすることにより、油圧源を増強せずに、フェザ
ーリングに至るスピードをアップすることができる。差
動動作弁１８が図２（Ｂ）に示すようにＯＦＦすると、
油圧シリンダー１１のヘッド側に供給する油量Ｑ１はロ
ッド側から流出する流量Ｑ２により補充されるため、油
圧源からの流量Ｑ０より著しく大きくなる。具体的に
は、例えばロッド側のシリンダ断面積をヘッド側のシリ
ンダ断面積の３／５を選定すれば、緊急時にヘッド側に
供給される油はシリンダ自身で３／５を得られるため、
油圧源からは差し引き従来の方法と比べ２／５の流量で
十分となる。According to the second embodiment, by providing the actuating valve 18, the speed of feathering can be increased without increasing the hydraulic pressure source. When the differential operation valve 18 is turned off as shown in FIG. 2 (B),
The amount Q 1 of oil supplied to the head side of the hydraulic cylinder 11 is replenished by the flow rate Q 2 flowing out from the rod side, and therefore is significantly larger than the flow rate Q 0 from the hydraulic pressure source. Specifically, for example, if the cylinder cross-sectional area on the rod side is selected to be 3/5 of the cylinder cross-sectional area on the head side, the oil supplied to the head side in an emergency can obtain 3/5 by the cylinder itself.
From the hydraulic source, a flow rate of 2/5 is sufficient as compared with the conventional method.
【００１９】また、従来、ポンプ流量だけで緊急動作に
追従させるために、アキュームレータを使用して流量を
補完していたが、実施例２ではこのアキュームレータの
小型化又は廃止が実現できる。即ち、実施例１と同様、
通常の油圧シリンダ１１の動作速度より回転翼１３のピ
ッチを早く動かすことができるとともに、回転翼１３を
フェザーリング状態に戻す時間が短くなり、もって駆動
源である油圧ポンプの容量を削減したり、アキュムレー
タの容量削減又は廃止を図り、油圧関連装置の小型化が
できる。Further, conventionally, in order to follow the emergency operation only by the pump flow rate, the flow rate is complemented by using the accumulator, but in the second embodiment, the downsizing or the elimination of this accumulator can be realized. That is, as in the first embodiment,
The pitch of the rotary blades 13 can be moved faster than the normal operating speed of the hydraulic cylinder 11, and the time for returning the rotary blades 13 to the feathering state is shortened, thereby reducing the capacity of the hydraulic pump that is the drive source. The capacity of the accumulator can be reduced or eliminated, and the hydraulic equipment can be downsized.
【００２０】[0020]
【発明の効果】以上詳述したように本発明によれば、危
急電磁弁の構成に改良を施すことにより、通常の油圧シ
リンダの動作速度より回転翼のピッチを早く動かす事が
可能であるとともに、回転翼をフェザーリング状態に戻
す時間が短くなり、もって駆動源である油圧ポンプの容
量を削減したりアキュムレータの容量削減又は廃止を図
り、油圧関連装置の小型化が可能な風力発電装置を提供
できる。As described above in detail, according to the present invention, by improving the structure of the emergency solenoid valve, it is possible to move the pitch of the rotor blades faster than the operating speed of a normal hydraulic cylinder. The time to return the rotor blades to the feathering state is shortened, thus reducing the capacity of the hydraulic pump that is the drive source and the capacity of the accumulator or abolishing it, and providing a wind power generator capable of miniaturizing hydraulic related equipment. it can.
【００２１】また、本発明によれば、従来の危急電磁弁
やサーボ弁の他、油圧シリンダー、危急電磁弁及びサー
ボ弁と共に電気的に接続し油圧回路を開閉する差動動作
弁を設けることにより、上記と同様、通常の油圧シリン
ダの動作速度より回転翼のピッチを早く動かす事が可能
であるとともに、回転翼をフェザーリング状態に戻す時
間が短くなり、もって駆動源である油圧ポンプの容量を
削減したりアキュムレータの容量削減又は廃止を図り、
油圧関連装置の小型化が可能な風力発電装置を提供でき
る。Further, according to the present invention, in addition to the conventional emergency solenoid valve and servo valve, by providing the hydraulic cylinder, the emergency solenoid valve and the servo valve, the differential operation valve that is electrically connected to open and close the hydraulic circuit is provided. As with the above, it is possible to move the pitch of the rotor blades faster than the operating speed of a normal hydraulic cylinder, and the time required to return the rotor blades to the feathering state is shortened, thus reducing the capacity of the hydraulic pump that is the drive source. To reduce the capacity of the accumulator or abolish it,
It is possible to provide a wind turbine generator capable of downsizing hydraulic equipment.
【図１】本発明の実施例１に係る風力発電装置の説明
図。FIG. 1 is an explanatory diagram of a wind turbine generator according to a first embodiment of the present invention.
【図２】本発明の実施例２に係る風力発電装置の説明
図。FIG. 2 is an explanatory diagram of a wind turbine generator according to a second embodiment of the present invention.
【図３】従来の風力発電装置の説明図。FIG. 3 is an explanatory diagram of a conventional wind turbine generator.
【図４】回転翼の通常時及びフェザーリング状態の説明
図。FIG. 4 is an explanatory diagram of a normal state and a feathering state of a rotary blade.
１１…油圧シリンダー、 １１ａ…ロッド側チャンバー、 １１ｂ…ヘッド側チャンバー、 １２…ロッド、 １３…回転翼、 １４…増速機、 １５…発電機、 １６…危急電磁弁、 １７…サーボ弁、 １８…差動動作弁。 11 ... hydraulic cylinder, 11a ... Rod side chamber, 11b ... head side chamber, 12 ... Rod, 13 ... rotors, 14 ... gearbox, 15 ... Generator 16 ... Emergency solenoid valve, 17 ... Servo valve, 18 ... Differential operation valve.
Claims (2)
を介して発電機に伝えて発電を行う風力発電装置におい
て、 前記回転翼のピッチ角を制御できるように連結された油
圧シリンダーと、前記油圧シリンダーに油圧的に接続さ
れ電気的に制御を行う危急電磁弁と、前記油圧シリンダ
ー、危急電磁弁に夫々油圧的に接続され電気的に制御を
行うサーボ弁とを有し、前記サーボ弁とともに前記危急
電磁弁からも作動油を油圧シリンダーに供給することに
より、大量の作動油が油圧シリンダーに供給されること
で油圧シリンダーのストローク速度が速くなる油圧回路
を持つことを特徴とする風力発電装置。1. A wind power generator for transmitting a rotating force of a rotor blade that receives wind to a generator via a speed increaser to generate electric power, and a hydraulic cylinder connected so as to control a pitch angle of the rotor blade. An emergency solenoid valve hydraulically connected to the hydraulic cylinder for electrical control, and a servo valve hydraulically connected to the hydraulic cylinder and the emergency solenoid valve for electrical control, respectively, It is characterized by having a hydraulic circuit in which a large amount of hydraulic oil is supplied to the hydraulic cylinder by supplying hydraulic oil from the emergency solenoid valve together with the servo valve to the hydraulic cylinder, thereby increasing the stroke speed of the hydraulic cylinder. Wind power generator.
等を介して発電機に伝えて発電を行う風力発電装置にお
いて、 前記回転翼のピッチ角を制御できるように連結された油
圧シリンダーと、前記油圧シリンダーに油圧的に接続さ
れ電気的に制御を行う危急電磁弁と、前記油圧シリンダ
ーに夫々油圧的に接続された電気的な制御を行うサーボ
弁と差動動作弁を有し、前記サーボ弁とともに前記危急
電磁弁からも作動油を油圧シリンダーに供給することに
より、その結果として作動油を油圧シリンダーに供給す
ると前記動作弁は同じ流量でも大きいストロークを持つ
ことを特徴とする風力発電装置。2. A wind turbine generator for transmitting a rotational force of a rotor blade that receives wind to a generator via a speed increaser or the like to generate electric power, and a hydraulic pressure connected so as to control a pitch angle of the rotor blade. A cylinder, an emergency solenoid valve hydraulically connected to the hydraulic cylinder for electrical control, and a servo valve and a differential operation valve for hydraulic control electrically connected to the hydraulic cylinder, respectively. By supplying hydraulic oil to the hydraulic cylinder from the emergency solenoid valve together with the servo valve, as a result of supplying hydraulic oil to the hydraulic cylinder, the operating valve has a large stroke even at the same flow rate. Power generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001352128A JP2003148321A (en) | 2001-11-16 | 2001-11-16 | Wind power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001352128A JP2003148321A (en) | 2001-11-16 | 2001-11-16 | Wind power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003148321A true JP2003148321A (en) | 2003-05-21 |
Family
ID=19164348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001352128A Withdrawn JP2003148321A (en) | 2001-11-16 | 2001-11-16 | Wind power generation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003148321A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129378A1 (en) * | 2006-04-27 | 2007-11-15 | The Tokyo Electric Power Company, Incorporated | Wind-driven electricity generation device, method of controlling wind-driven electricity generation device, and computer program |
| US8430639B2 (en) | 2009-04-10 | 2013-04-30 | Mitsubishi Heavy Industries, Ltd. | Pitch drive apparatus of wind generator and wind generator |
| US8568098B2 (en) | 2009-04-17 | 2013-10-29 | Mitsubishi Heavy Industries, Ltd. | Pitch drive apparatus of wind generator and wind generator |
| CN109667714A (en) * | 2017-10-17 | 2019-04-23 | 新疆金风科技股份有限公司 | Fluid pressure pitch-controlled system and its control method |
| CN111878306A (en) * | 2020-08-04 | 2020-11-03 | 上海电气风电集团股份有限公司 | Hydraulic pitch control method, device and system for wind turbine |
-
2001
- 2001-11-16 JP JP2001352128A patent/JP2003148321A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129378A1 (en) * | 2006-04-27 | 2007-11-15 | The Tokyo Electric Power Company, Incorporated | Wind-driven electricity generation device, method of controlling wind-driven electricity generation device, and computer program |
| US8430639B2 (en) | 2009-04-10 | 2013-04-30 | Mitsubishi Heavy Industries, Ltd. | Pitch drive apparatus of wind generator and wind generator |
| US8568098B2 (en) | 2009-04-17 | 2013-10-29 | Mitsubishi Heavy Industries, Ltd. | Pitch drive apparatus of wind generator and wind generator |
| CN109667714A (en) * | 2017-10-17 | 2019-04-23 | 新疆金风科技股份有限公司 | Fluid pressure pitch-controlled system and its control method |
| CN109667714B (en) * | 2017-10-17 | 2020-01-31 | 新疆金风科技股份有限公司 | Hydrostatic variable-pitch system and control method thereof |
| CN111878306A (en) * | 2020-08-04 | 2020-11-03 | 上海电气风电集团股份有限公司 | Hydraulic pitch control method, device and system for wind turbine |
| CN111878306B (en) * | 2020-08-04 | 2021-11-26 | 上海电气风电集团股份有限公司 | Hydraulic pitch control method, device and system for wind turbine |
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Legal Events
| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050201 |