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Adaptable spoiler for a wind turbine rotor blade

A technology of wind turbines and rotor blades, applied in the field of spoilers, can solve the problems of reducing the life of the spoiler, spoiler damage, etc., and achieve the effect of avoiding the loss of stiffness

Pending Publication Date: 2021-07-23
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, it has been observed that conventional spoilers do not in all cases provide sufficient or reasonable performance in order to actively alter the state of, for example, downstream installed flow conditioning devices such as vortex generators
Furthermore, it has been observed that conventional spoilers do not in all cases withstand the loads to which they are subjected, leading to partial damage of the spoiler or at least a reduction in the life of the spoiler

Method used

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  • Adaptable spoiler for a wind turbine rotor blade
  • Adaptable spoiler for a wind turbine rotor blade
  • Adaptable spoiler for a wind turbine rotor blade

Examples

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Embodiment Construction

[0046] Structurally and / or functionally similar elements are labeled with reference numbers that differ only in the first digit.

[0047] A side sectional view seen along the longitudinal axis 101 of the rotor blade 100 (corresponding to the longitudinal direction of the spoiler 150 ) is schematically (and partly) shown at figure 1 The rotor blade 100 comprises a blade airfoil surface 103 in particular on the suction surface exposed to the airflow during operation of the rotor blade 100 . The rotor blade 100 further comprises an adaptable spoiler 150 mounted at the blade airfoil surface 103 in particular in the front part of the suction surface of the rotor blade 100 . The adaptable spoiler may eg be arranged in a position between 25% and 60%, most preferably between 30% and 45% of the front part of the blade. The rotor blade 100 includes a main body 102 having an airfoil-forming surface 103 .

[0048] exist Figure 1 to Figure 10 In , only the front part of the respective ...

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Abstract

It is described a spoiler (150), in particular adaptable spoiler, for a wind turbine blade (100), comprising: a main body (153) comprising an airfoil shaped surface (155) to be exposed to air flow (161); at least one stiffening element (159) distinct from the main body and supporting the airfoil surface, wherein the stiffening element (159) is in particular configured to enforce the shape of the airfoil surface (155) during loading by wind during operation of the wind turbine.

Description

technical field [0001] The invention relates to a spoiler, in particular an adaptable spoiler, for a wind turbine blade of a wind turbine, and further to a rotor blade of a wind turbine comprising said spoiler. Background technique [0002] Wind turbine rotor blades may already have flow conditioning devices installed on their surfaces. An example of such a flow conditioning device is a vortex generator (VG). The rotor blade may further include a spoiler mounted at the surface of the rotor blade. The spoiler can cooperate with the vortex generator and can influence the effect of the vortex generator depending on the state of the spoiler. The state of the spoiler may relate to a protrusion height and / or an inclination angle by which the spoiler extends from or relative to other surface portions of the rotor blade. angled at an angle. The spoiler can be used to actively inhibit the function of the flow regulating device. In general, flow conditioning devices may be consid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D1/06
CPCF03D1/0641F03D7/0296Y02E10/72F03D7/0232F05B2240/3052F03D1/0675F03D1/0658F05B2280/6013
Inventor P·B·埃内沃尔德森M·菲德尔F·吉尔希格A·G·冈萨雷斯K·J·克里斯滕森M·A·克里斯滕森A·米夏尔森H·诺伊舍费尔拉森
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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