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Actuatable surface features for wind turbine rotor blades

A technology for rotor blades and wind turbines, which is used in the control of wind turbines, wind turbines, and wind turbines that are consistent with the wind direction, and can solve problems such as high load, increased load, and increased rotor blade size.

Inactive Publication Date: 2012-08-01
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the size of the rotor blades increases, so does the load transmitted through the blades to other parts of the wind turbine such as the turbine hub and other components
For example, longer rotor blades lead to higher loads due to increased blade mass and also to increased aerodynamic loads acting along the blade span
Increases in such loads can become quite problematic at higher wind speeds as the loads transmitted through the rotor blades can exceed the load carrying capacity of other wind turbine components

Method used

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  • Actuatable surface features for wind turbine rotor blades
  • Actuatable surface features for wind turbine rotor blades
  • Actuatable surface features for wind turbine rotor blades

Examples

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Embodiment Construction

[0030] Reference will now be made in detail to various embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art can easily make various modifications and changes to the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on other embodiments to yield yet a further embodiment. Accordingly, the present invention should cover all modifications and changes within the scope of the appended claims and their equivalents.

[0031] Referring now to the accompanying drawings, figure 1 Shown is a perspective view of a wind turbine 10 of conventional construction. The wind turbine 10 includes a tower 12 on which a nacelle 14 is installed. A plurality of rotor blades 16 are mounted on a rotor hub 18, which is a...

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PUM

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Abstract

A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a suction side. The shell may define an outer surface along the pressure and suction sides over which an airflow travels. The rotor blade may also include a spoiler movable relative to the outer surface between a recessed position and an actuated position. The spoiler may generally be configured to separate the airflow from the outer surface when the spoiler is in the actuated position. Additionally, the spoiler may generally be linearly displaced between the recessed and actuated positions.

Description

technical field [0001] The present invention relates generally to wind turbines, and more particularly to actuated surface features for wind turbine rotor blades. Background technique [0002] Wind energy is considered to be one of the cleanest and most environmentally friendly energy sources available, and wind turbines have gained a lot of attention in this regard. A modern wind turbine typically consists of a tower, generator, gearbox, nacelle and one or more rotor blades. The rotor blades capture the kinetic energy of the wind using known wing principles. The rotor blades transmit kinetic energy in the form of rotational energy, thereby driving a shaft that connects the rotor blades to a gearbox or, if a gearbox is not used, directly to the generator. The generator then converts the mechanical energy into electrical energy, which is fed into the utility grid. [0003] The specific size of the wind turbine rotor blade is an important factor affecting the efficiency of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCY02E10/723F03D7/0252F05B2240/31Y02E10/726Y02E10/721F03D7/0256Y02E10/72F05B2240/3052F05B2240/3062
Inventor 王京E·L·麦格拉思T·J·菲谢蒂
Owner GENERAL ELECTRIC CO