JPH07324675A - Wind power generation controller - Google Patents
Wind power generation controllerInfo
- Publication number
- JPH07324675A JPH07324675A JP6118283A JP11828394A JPH07324675A JP H07324675 A JPH07324675 A JP H07324675A JP 6118283 A JP6118283 A JP 6118283A JP 11828394 A JP11828394 A JP 11828394A JP H07324675 A JPH07324675 A JP H07324675A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- pitch angle
- set value
- wind speed
- 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.)
- Pending
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
Landscapes
- Wind Motors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は風力発電に適用される風
力発電制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power generation control device applied to wind power generation.
【０００２】[0002]
【従来の技術】図４に示すようなブレード０１を有する
風力発電装置により発電が行われている。その一例は、
固定ブレード方法で、ブレード０１の回転方向（周速方
向）ａが、ブレード０１の翼弦線ｂに対してなす角、す
なわち、ピッチ角θが固定されて軸に取付けられてい
る。この場合、発電機の出力は図３の点線で示すように
変化する。すなわち、ある風速以上になると設定値より
出力は増加し、ストール（失速）領域になると漸減し
て、設定値以下になる場合もある。この現象は、図４に
示すように風速Ｗが増加すると、迎角αが増え失速す
る、いわゆるブレードのストール特性による。2. Description of the Related Art Electric power is generated by a wind turbine generator having a blade 01 as shown in FIG. One example is
According to the fixed blade method, the rotation direction (circumferential speed direction) a of the blade 01 is attached to the shaft with a fixed angle formed by the chord line b of the blade 01, that is, the pitch angle θ. In this case, the output of the generator changes as shown by the dotted line in FIG. That is, when the wind speed is higher than a certain value, the output increases from the set value, and when the stall (stall) region is reached, the output gradually decreases, and sometimes becomes lower than the set value. This phenomenon is due to a so-called blade stall characteristic in which the angle of attack α increases and stalls as the wind speed W increases as shown in FIG.
【０００３】他例は、可変ピッチ角方法で、風力発電機
の軸に、ピッチ駆動装置を介してブレード０１が取付け
られている。一方、図５に来すように、関数発生器５に
は発電機の出力設定信号１ｓ、ブレード０１のピッチ角
信号２ｓ、および風速信号３ｓが入力される。そして関
数発生器５には、予め各風速に応じて、出力設定値に対
するピッチ角が性能曲線より入力されており、入力の出
力設定値信号１ｓ、ピッチ角信号２ｓ、および風速信号
３ｓに応じてピッチ角制御信号５ｓを出力する。また減
算器７は出力設定値信号１ｓと発電機の発生出力信号８
ｓを受け、その偏差を出力する。減算器７の出力は制御
器４を経て補正制御信号４ｓとして出力される。関数発
生器５と制御器４の出力は加算器で加算され、実ピッチ
角制御信号６ｓとなりピッチ駆動装置へ送られる。Another example is a variable pitch angle method in which a blade 01 is attached to the shaft of a wind power generator via a pitch drive device. On the other hand, as shown in FIG. 5, the function generator 5 receives the output setting signal 1s of the generator, the pitch angle signal 2s of the blade 01, and the wind speed signal 3s. Then, the pitch angle with respect to the output set value is previously input to the function generator 5 from the performance curve according to each wind speed, and according to the input output set value signal 1s, the pitch angle signal 2s, and the wind speed signal 3s. The pitch angle control signal 5s is output. The subtractor 7 outputs the output set value signal 1s and the generator output signal 8
s, and outputs the deviation. The output of the subtractor 7 is output as a correction control signal 4s via the controller 4. The outputs of the function generator 5 and the controller 4 are added by an adder to form an actual pitch angle control signal 6s, which is sent to the pitch driving device.
【０００４】以上において、図３の出力制御域の風速に
はいると、関数発生器５は、出力設定値信号１ｓ、ピッ
チ角信号２ｓ、および風速信号３ｓを受けて、風速信号
３ｓに応じて、出力が設定値になるようピッチ角制御信
号５ｓを出力する。In the above, when the wind velocity in the output control range of FIG. 3 is entered, the function generator 5 receives the output set value signal 1s, the pitch angle signal 2s, and the wind velocity signal 3s, and responds to the wind velocity signal 3s. , And outputs the pitch angle control signal 5s so that the output becomes a set value.
【０００５】例えば、風速Ｖw1のとき、の点で運転さ
れていたならば、の点で運転するようにピッチ角を
の点から矢印の方向へ動かす指令（ピッチ角制御信号）
を出す。又、風速ＶW1での点で運転していたときに風
速がＶW2に変わればの点で運転するようにピッチ角を
矢印の方向へ動かす指令をだすものである。ピッチ角駆
動装置はこのピッチ角制御信号５ｓを受けて、入力に応
じてブレード０１のピッチ角を変える。For example, at wind speed V w1 , if the vehicle was operating at the point, a command to move the pitch angle from the point to the direction of the arrow so as to operate at the point (pitch angle control signal)
Give out. It also issues a command to move the pitch angle in the direction of the arrow so that the vehicle operates at the point where the wind speed changes to V W2 when the vehicle operates at the point where the wind speed is V W1 . The pitch angle drive device receives the pitch angle control signal 5s and changes the pitch angle of the blade 01 according to the input.
【０００６】また、制御器４は関数発生器５が性能カー
ブから計算するため、実機との差が生じるので、それを
補正すべく出力設定値信号１ｓと発生出力信号８ｓとの
偏差が生じていれば、偏差がなくなる方向へピッチ角を
動かす指令（補正制御信号）を出す。ピッチ駆動装置は
これらの和を受けて、ピッチ角を変える。Further, since the controller 4 calculates from the performance curve by the function generator 5, there is a difference from the actual machine. Therefore, in order to correct it, there is a deviation between the output set value signal 1s and the generated output signal 8s. If so, a command (correction control signal) for moving the pitch angle in the direction of eliminating the deviation is issued. The pitch drive receives these sums and changes the pitch angle.
【０００７】このようにして、発電機の出力は、図３の
実線で示すように安定して一定の設定値に維持される。In this way, the output of the generator is stably maintained at a constant set value as shown by the solid line in FIG.
【０００８】[0008]
【発明が解決しようとする課題】上記従来装置２は次の
ような問題点があった。The conventional device 2 has the following problems.
【０００９】（１）固定ブレード方法：高風速時には風
車回転速度が一定の場合、ブレード背面で空気層に剥離
が発生しストールに至る。このストール量は風速が大き
くなるにつれて大きくなり、出力低下が著しくなる。ま
た、ストール現象特有の不安定な面、或いはヒステリシ
ス性等の問題もあった。(1) Fixed blade method: When the wind turbine rotation speed is constant at a high wind speed, peeling occurs in the air layer on the back surface of the blade, leading to stall. This stall amount increases as the wind speed increases, and the output decreases significantly. Further, there are problems such as an unstable surface peculiar to the stall phenomenon or a hysteresis property.
【００１０】（２）可変ピッチ角方法：出力が風速の広
い範囲で設定値に維持できる。しかし、その特性上、風
速変動幅に対するピッチ角の補正量が大きいので、応答
遅れが生じ易く、また出力変動幅も大きくなる可能性が
あった。(2) Variable pitch angle method: The output can be maintained at the set value in a wide range of wind speed. However, due to its characteristics, since the pitch angle correction amount with respect to the wind speed fluctuation range is large, a response delay is likely to occur, and the output fluctuation range may be large.
【００１１】この関係は図２の風速と発生出力との関係
図に示されている。今、仮に風速の変化がＷm →Ｗm ＋
ΔＷ→Ｗm →Ｗm −ΔＷ→Ｗm となったとする。このよ
うな風速変化下で、一定出力を得るためには、ピッチ角
は２０°→２６°→２０°→１０°→２０°と動く必要
があり、風速の変化が著しい場合、ピッチ角制御が遅
れ、最悪、ΔＥp の出力変動が生じる。This relationship is shown in the relationship diagram between the wind speed and the generated output in FIG. Now, if the change in wind speed is W m → W m +
It is assumed that ΔW → W m → W m −ΔW → W m . In order to obtain a constant output under such a change in wind speed, the pitch angle needs to move in the order of 20 ° → 26 ° → 20 ° → 10 ° → 20 °. Delay, worst, and ΔE p output fluctuation occur.
【００１２】[0012]
【課題を解決するための手段】本発明は上記課題を解決
するため次の手段を講ずる。The present invention takes the following means in order to solve the above problems.
【００１３】すなわち、風力発電制御装置として、出力
設定値信号、風速信号およびピッチ角信号を受け予め入
力されている性能曲線より同出力設定値および風速を満
たすストール制御領域でのピッチ角制御信号を出力する
関数発生器と、上記出力設定値信号および発生出力信号
を受けその偏差を出力する減算器と、同減算器の出力を
受け補正ピッチ角制御信号を出力する制御器と、上記関
数発生器および制御器の出力を受けその和を実ピッチ角
制御信号として出力する加算器とを設ける。That is, the wind power generation control device receives the output set value signal, the wind speed signal and the pitch angle signal, and outputs the pitch angle control signal in the stall control region satisfying the same output set value and the wind speed from the performance curve input in advance. A function generator for outputting, a subtracter for receiving the output set value signal and the generated output signal and outputting the deviation thereof, a controller for receiving the output of the subtractor and outputting a corrected pitch angle control signal, and the function generator And an adder that receives the output of the controller and outputs the sum as an actual pitch angle control signal.
【００１４】[0014]
【作用】上記手段において、関数発生器は出力設定値信
号、風速信号およびピッチ角信号を受けて、予め入力さ
れている風車の性能曲線より同風速で同出力設定値を満
たすストール制御領域（ブレードのストール領域）での
ピッチ角制御信号を出力する。また減算器は出力設定値
信号および発生出力信号を受けその偏差を出力する。制
御器は減算器からの出力を受け補正ピッチ角制御信号を
出力する。加算器は関数発生器および制御器の出力を受
けその和を実ピッチ角制御信号として出力する。この実
ピッチ角制御信号に応じて風車はピッチ角をストール領
域で応答性よく変え、出力を一定に維持する。In the above means, the function generator receives the output set value signal, the wind speed signal and the pitch angle signal, and from the performance curve of the wind turbine which is input in advance, the stall control region (blade which satisfies the same output set value at the same wind speed). Output the pitch angle control signal in the stall area). The subtractor receives the output set value signal and the generated output signal and outputs the deviation. The controller receives the output from the subtractor and outputs a corrected pitch angle control signal. The adder receives the outputs of the function generator and the controller and outputs the sum as an actual pitch angle control signal. In response to this actual pitch angle control signal, the wind turbine changes the pitch angle in the stall region with good responsiveness and maintains a constant output.
【００１５】[0015]
【実施例】上記記載の本発明の一実施例を図１および図
２により説明する。なお、従来例で説明した部分は、同
一の番号をつけ説明を省略し、この発明に関する部分を
主体に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention described above will be described with reference to FIGS. It should be noted that the parts described in the conventional example are denoted by the same reference numerals and the description thereof is omitted, and the parts relating to the present invention will be mainly described.
【００１６】図１にて、関数発生器５ａは出力設定値信
号１ｓ、ピッチ角信号２ｓ、および風速信号３ｓを受け
出力を加算器６へ送る。減算器７は出力設定信号１ｓと
発生出力信号８ｓを受け出力を制御器４を経て加算器６
へ送る。In FIG. 1, the function generator 5a receives the output set value signal 1s, the pitch angle signal 2s, and the wind speed signal 3s and sends the output to the adder 6. The subtractor 7 receives the output setting signal 1s and the generated output signal 8s and outputs the output through the controller 4 to the adder 6
Send to.
【００１７】上記において、関数発生器５ａは出力設定
値信号１ｓ、風速信号２ｓおよびピッチ角信号３ｓを受
けて、予め入力されている風車（ブレード）の性能曲線
より、同風速で同出力設定値を満たすストール制御領域
でのピッチ角制御信号５ａｓを出力する。また減算器７
は出力設定値信号および発生出力信号を受けその偏差を
出力する。制御器４は減算器７からの出力を受け、補正
ピッチ角制御信号４ｓを出力する。加算器６は関数発生
器５ａおよび制御器４の出力を受け、その和を実ピッチ
角制御信号６ｓとして出力する。この実ピッチ角制御信
号６ｓに応じて風車はピッチ角をストール領域で応答性
よく変え、出力を一定に維持する。従ってピッチ角駆動
装置のアクチュエータのストロークは小さくてよい。In the above, the function generator 5a receives the output set value signal 1s, the wind speed signal 2s, and the pitch angle signal 3s, and the pre-input performance curve of the wind turbine (blade) indicates that the output set value is the same at the same wind speed. The pitch angle control signal 5as in the stall control region that satisfies the condition is output. Also subtractor 7
Receives the output set value signal and the generated output signal and outputs the deviation. The controller 4 receives the output from the subtractor 7 and outputs a corrected pitch angle control signal 4s. The adder 6 receives the outputs of the function generator 5a and the controller 4 and outputs the sum as an actual pitch angle control signal 6s. In response to the actual pitch angle control signal 6s, the wind turbine changes the pitch angle in the stall region with good responsiveness and maintains the output constant. Therefore, the stroke of the actuator of the pitch angle driving device may be small.
【００１８】この関係は図２の風速と発生出力との関係
図に示されている。今、仮に比較的に風速が大きいＷ1
からＷ2 の領域で一定の出力を得ようとすれば、前記従
来のピッチ角制御方式の場合、ピッチ角は１０°から３
２°まで動作させる必要があるが、本実施例のストール
領域での制御方式の場合、ピッチ角は１０°から６°ま
での補正で充分である。即ち今、平均風速Ｗで運転中、
風速の変化がＷm →Ｗ m ＋ΔＷ→Ｗm →Ｗm −ΔＷ→Ｗ
m となったとする。このような風速変化下で、一定出力
を得ようとすれば、前者のピッチ角制御の場合、ピッチ
角は２０°→２６°→２０°→１０°→２０°と動く必
要があり、風速の変化が著しい場合、ピッチ角制御が遅
れ、最悪、ΔＥp の出力変動が生じる。一方、後者のス
トール領域での制御の場合、上記に対応するピッチ角
は、６°→８°→６°→１０°→６°となり、変化が小
さく、また最悪の出力変動はΔＥs となり、前者よりも
安定した制御性能があることと、小さな出力変動で済む
ことが分かる。This relationship is the relationship between the wind speed and the generated output in FIG.
As shown in the figure. Now, if the wind speed is relatively high, W1
To W2In order to obtain a constant output in the area of
In the conventional pitch angle control system, the pitch angle is 10 ° to 3
It is necessary to operate up to 2 °, but the stall of this embodiment
In the case of the control method in the area, the pitch angle is from 10 ° to 6 °.
The correction in is sufficient. That is, while operating at the average wind speed W,
The change in wind speed is Wm→ W m+ ΔW → Wm→ Wm-ΔW → W
mSuppose that Constant output under such changes in wind speed
In the case of the former pitch angle control,
The angle must move from 20 ° → 26 ° → 20 ° → 10 ° → 20 °
If there is a significant change in wind speed, pitch angle control is slow.
And worst, ΔEpOutput fluctuation occurs. On the other hand, the latter
For control in the tall region, the pitch angle corresponding to the above
Is 6 ° → 8 ° → 6 ° → 10 ° → 6 °, and the change is small
In addition, the worst output fluctuation is ΔEsAnd more than the former
Stable control performance and small output fluctuation
I understand.
【００１９】以上のようにして、応答性がよく、かつ安
定した出力が得られる。またピッチ角の変化範囲が少な
いので、ピッチ駆動装置（アクチュエータ）の作動範囲
の小さなものでよい。As described above, a stable output can be obtained with good responsiveness. Further, since the change range of the pitch angle is small, the operation range of the pitch drive device (actuator) may be small.
【００２０】また、高風速時において充分一定の出力を
維持し得る能力、機能を有し、ストール現象が有する不
安定性や、ヒステリシス性を補なう点でも望ましいもの
である。It is also desirable in that it has the ability and function of maintaining a sufficiently constant output at high wind speed, and supplements the instability and the hysteresis characteristic of the stall phenomenon.
【００２１】[0021]
【発明の効果】以上述べたように、本発明を採用するこ
とにより、次のような効果が得られる。As described above, the following effects can be obtained by adopting the present invention.
【００２２】（１）風力発電機の出力が、速い応答性
で、安定して、設定値に維持される。(1) The output of the wind power generator is fast, stable, and maintained at the set value.
【００２３】（２）広い風速領域で、特に高風速域でも
高い性能（出力）を維持できる。(2) It is possible to maintain high performance (output) in a wide wind speed range, especially in a high wind speed range.
【図１】本発明の一実施例の構成ブロック図である。FIG. 1 is a configuration block diagram of an embodiment of the present invention.
【図２】同実施例および従来例の作用説明図である。FIG. 2 is an operation explanatory view of the embodiment and the conventional example.
【図３】同従来例の作用説明図である。FIG. 3 is an operation explanatory view of the conventional example.
【図４】同従来例の作用説明図である。FIG. 4 is an operation explanatory view of the conventional example.
【図５】同従来例の構成ブロック図である。FIG. 5 is a configuration block diagram of the conventional example.
１ｓ 出力設定値信号 ２ｓ ピッチ角信号 ３ｓ 風速信号 ４ 制御器 ５，５ａ 関数発生器 ６ 加算器 ７ 減算器 1s Output setting value signal 2s Pitch angle signal 3s Wind velocity signal 4 Controller 5,5a Function generator 6 Adder 7 Subtractor
Claims (1)
角信号を受け予め入力されている性能曲線より同出力設
定値および風速を満たすストール制御領域でのピッチ角
制御信号を出力する関数発生器と、上記出力設定値信号
および発生出力信号を受けその偏差を出力する減算器
と、同減算器の出力を受け補正ピッチ角制御信号を出力
する制御器と、上記関数発生器および制御器の出力を受
けその和を実ピッチ角制御信号として出力する加算器と
を備えてなることを特徴とする風力発電制御装置。1. A function generator that receives an output set value signal, a wind speed signal and a pitch angle signal, and outputs a pitch angle control signal in a stall control region that satisfies the same output set value and wind speed from a performance curve that is input in advance. , A subtractor that receives the output set value signal and the generated output signal and outputs the deviation thereof, a controller that receives the output of the subtractor and outputs a corrected pitch angle control signal, and an output of the function generator and the controller. A wind power generation control device comprising: an adder that receives and outputs the sum as an actual pitch angle control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6118283A JPH07324675A (en) | 1994-05-31 | 1994-05-31 | Wind power generation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6118283A JPH07324675A (en) | 1994-05-31 | 1994-05-31 | Wind power generation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07324675A true JPH07324675A (en) | 1995-12-12 |
Family
ID=14732843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6118283A Pending JPH07324675A (en) | 1994-05-31 | 1994-05-31 | Wind power generation controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07324675A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006037850A (en) * | 2004-07-27 | 2006-02-09 | Univ Of Ryukyus | Pitch angle control device for wind power generator |
| JP2007032488A (en) * | 2005-07-28 | 2007-02-08 | Univ Of Ryukyus | Generated power equalizing device for wind farm and its method |
| JP2011256758A (en) * | 2010-06-08 | 2011-12-22 | Fuji Heavy Ind Ltd | Wind power generator |
| JP2014526652A (en) * | 2011-09-21 | 2014-10-06 | ヨンロク オ | Horizontal axis wind power generator using airfoil blades of the same width and thickness |
| CN107542627A (en) * | 2016-06-27 | 2018-01-05 | 中国船舶重工集团海装风电股份有限公司 | A kind of power curves of wind-driven generator sets method for drafting and drawing system |
| CN108488035A (en) * | 2018-03-20 | 2018-09-04 | 内蒙古工业大学 | The stall of permanent magnet direct-driving aerogenerator group and variable pitch mixing control method |
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1994
- 1994-05-31 JP JP6118283A patent/JPH07324675A/en active Pending
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| JP2006037850A (en) * | 2004-07-27 | 2006-02-09 | Univ Of Ryukyus | Pitch angle control device for wind power generator |
| JP2007032488A (en) * | 2005-07-28 | 2007-02-08 | Univ Of Ryukyus | Generated power equalizing device for wind farm and its method |
| JP4631054B2 (en) * | 2005-07-28 | 2011-02-16 | 国立大学法人 琉球大学 | Apparatus and method for leveling generated power in wind farm |
| JP2011256758A (en) * | 2010-06-08 | 2011-12-22 | Fuji Heavy Ind Ltd | Wind power generator |
| JP2014526652A (en) * | 2011-09-21 | 2014-10-06 | ヨンロク オ | Horizontal axis wind power generator using airfoil blades of the same width and thickness |
| US10012210B2 (en) | 2011-09-21 | 2018-07-03 | Young-Lok Oh | Horizontal-axis wind turbine using airfoil blades with uniform width and thickness |
| CN107542627A (en) * | 2016-06-27 | 2018-01-05 | 中国船舶重工集团海装风电股份有限公司 | A kind of power curves of wind-driven generator sets method for drafting and drawing system |
| CN107542627B (en) * | 2016-06-27 | 2020-12-01 | 中国船舶重工集团海装风电股份有限公司 | Method and system for drawing power curve of wind generating set |
| CN108488035A (en) * | 2018-03-20 | 2018-09-04 | 内蒙古工业大学 | The stall of permanent magnet direct-driving aerogenerator group and variable pitch mixing control method |
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