JP2012092662A5

JP2012092662A5 -

Info

Publication number: JP2012092662A5
Application number: JP2010238043A
Authority: JP
Filing date: 2010-10-22
Publication date: 2013-03-14
Anticipated expiration: 2030-10-22

Description

上記課題を解決するために、本発明の風車翼およびこれを備えた風力発電装置ならびに風車翼の設計方法は以下の手段を採用する。
すなわち、本発明にかかる風車翼は、翼先端側から翼根側にかけて翼厚比が増大する風車翼において、翼弦線に沿う前縁からの距離Ｘをコード長Ｃで除した翼弦方向位置Ｘ／Ｃが０．２８以上０．３２以下の範囲内に、翼厚が最大となる最大翼厚位置が設けられ、前記翼弦方向位置Ｘ／Ｃが０．４５以上０．５５以下の範囲内に、キャンバが最大となる最大キャンバ位置が設けられている翼断面を有することを特徴とする。 In order to solve the above-mentioned problems, the wind turbine blade of the present invention, the wind turbine generator equipped with the wind turbine blade, and the wind turbine blade design method employ the following means.
That is, the wind turbine blade according to the present invention is a wind turbine blade whose blade thickness ratio increases from the blade tip side to the blade root side. The maximum blade thickness position where the blade thickness is maximum is provided in the range of X / C of 0.28 or more and 0.32 or less, and the chord direction position X / C is in the range of 0.45 or more and 0.55 or less. A blade section having a maximum camber position where the camber is maximum is provided.

また、本発明の風車翼の設計方法は、翼先端側から翼根側にかけて翼厚比が増大する風車翼の設計方法において、翼弦線に沿う前縁からの距離Ｘをコード長Ｃで除した翼弦方向位置Ｘ／Ｃが０．２８以上０．３２以下の範囲内に、翼厚が最大となる最大翼厚位置を設け、前記翼弦方向位置Ｘ／Ｃが０．４５以上０．５５以下の範囲内に、キャンバが最大となる最大キャンバ位置を設けることを特徴とする。 The wind turbine blade design method of the present invention is a wind turbine blade design method in which the blade thickness ratio increases from the blade tip side to the blade root side. In the range where the chord direction position X / C is 0.28 or more and 0.32 or less, a maximum blade thickness position where the blade thickness is maximum is provided, and the chord direction position X / C is 0.45 or more and 0.00. A maximum camber position where the camber is maximum is provided within a range of 55 or less.

Claims

In wind turbine blades where the blade thickness ratio increases from the blade tip side to the blade root side,
The maximum blade thickness position where the blade thickness is the maximum is within the range of the chord direction position X / C obtained by dividing the distance X from the leading edge along the chord line by the chord length C within the range of 0.28 to 0.32. Provided,
In the range where the chord direction position X / C is 0.45 or more and 0.55 or less, a maximum camber position where the camber is maximum is provided ,
The wind turbine blade according to claim 1, wherein the camber distribution is substantially symmetrical with respect to the chord direction about the maximum camber position .

In wind turbine blades where the blade thickness ratio increases from the blade tip side to the blade root side,
The maximum blade thickness position where the blade thickness is the maximum is within the range of the chord direction position X / C obtained by dividing the distance X from the leading edge along the chord line by the chord length C within the range of 0.28 to 0.32. Provided,
In the range where the chord direction position X / C is 0.45 or more and 0.55 or less, a maximum camber position where the camber is maximum is provided ,
The wind turbine blade, wherein the blade cross section is provided at a wind turbine blade end in which a blade thickness ratio obtained by dividing the maximum blade thickness by the cord length is in a range of 12% to 21% .

A wind turbine blade according to claim 1 or 2 ,
A rotor connected to the blade root side of the wind turbine blade and rotated by the wind turbine blade;
A generator that converts the rotational force obtained by the rotor into an electrical output;
A wind turbine generator comprising:

In a wind turbine blade design method in which the blade thickness ratio increases from the blade tip side to the blade root side,
The maximum blade thickness position where the blade thickness is maximum is within the range where the chord length position X / C, which is obtained by dividing the distance X from the leading edge along the chord line by the cord length C, is 0.28 or more and 0.32 or less. Provided,
In the range where the chord direction position X / C is 0.45 or more and 0.55 or less, a maximum camber position where the camber is maximum is provided ,
A wind turbine blade design method characterized in that the camber distribution is substantially symmetrical in the chord direction about the maximum camber position .

In a wind turbine blade design method in which the blade thickness ratio increases from the blade tip side to the blade root side,
The maximum blade thickness position where the blade thickness is maximum is within the range where the chord length position X / C, which is obtained by dividing the distance X from the leading edge along the chord line by the cord length C, is 0.28 or more and 0.32 or less. Provided,
In the range where the chord direction position X / C is 0.45 or more and 0.55 or less, a maximum camber position where the camber is maximum is provided ,
A design method of a wind turbine blade , wherein the blade cross section is provided at a wind turbine blade tip in which a blade thickness ratio obtained by dividing the maximum blade thickness by the cord length is in a range of 12% to 21% .