Wind turbine blade

A technology of wind turbines and blades, which is applied to wind engines, wind engines consistent with the wind direction, engines, etc. It can solve the problems of high total mass and expensive carbon fiber pultrusion stacks, and achieve simplified production and improved overall robustness Effect

Pending Publication Date: 2022-04-19
SIEMENS GAMESA RENEWABLE ENERGY INNOVATION &TECH SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the mass of the spar caps themselves is somehow reduced due to the use of carbon fiber pultruded stacks, the total mass of this known turbine

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0027] Figure 1 Schematic diagram illustrating a wind turbine 1, the wind turbine 1 comprises a tower 2, mounted on the top of the tower 2 cabin 3 and rotor 4, the rotor 4 comprises three wind turbine blades attached to the hub 6 5, the hub 6 is operationally coupled to a generator arranged in the engine room 3, the generator is driven by the rotating energy of rotor 4 for generating electrical power as commonly known.

[0028] The present invention relates to the setting of the wind turbine blade 5.

[0029] Figure 2 Schematic diagram illustrating a first embodiment of a turbine blade 5, the turbine blade 5 having a root for attaching blade 5 to the hub 7 and having a terminal 8 at the end of another blade. In addition, it includes leading edge 9 and trailing edge 10.

[0030] Figure 3 Schematic diagram of a second embodiment of a turbine blade 5, the turbine blade 5 having a root for attaching the blade 5 to the hub 7 and having a terminal 8 at the end of another blade. In addi

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PUM

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Abstract

A wind turbine blade having a substantially hollow blade body (11) comprising upper and lower half shells (12, 13) and first and second elongate webs (16, 17) each extending in a longitudinal direction of the blade (5), each web (16, 17) comprises an upper flange (22) and a lower flange (22) which connect the corresponding web (16, 17) to the corresponding half-shell (12, 13), and wherein the first and second webs (16, 17) are supported relative to the corresponding half-shell (12, 13) by corresponding first and second reinforcing structures (23), and wherein the first and second webs (16, 17) are supported relative to the corresponding half-shell (12, 13) by the corresponding first and second reinforcing structures (23). The reinforcing structures (23) extend in the longitudinal direction of the blade (5), in which each first and second reinforcing structure (23) supporting the first and second webs (16) comprises at least one stack (24) consisting of a plurality of pultruded composite strips (25) comprising carbon fibers, in which the strips (25) are fixed in a resin matrix (35), in which the reinforcing structures (23) extend in the longitudinal direction of the blade (5), each of the at least one stack (25) of the pultruded composite strips is an integral part of the respective first and second webs (17) and constructs a respective flange (22) attached to the inner layer (29) of the respective upper and lower shells (12, 13).

Description

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Claims

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Application Information

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Owner SIEMENS GAMESA RENEWABLE ENERGY INNOVATION &TECH SL
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