Method and system of manufacturing a wind turbine blade

Patent metadata

Field	Value
Publication number	US-12203442-B2
Application number	US-202017610118-A
Country	US
Kind code	B2
Filing date	May 8, 2020
Priority date	May 10, 2019
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A wind turbine blade including a shell structure defining a leading edge and a trailing edge, and an upwind shell and a downwind shell joined along at least one of the leading edge or the trailing edge. The shell structure includes an assembly of preformed parts processed into a collection of prefabricated laminates. The invention also includes a method of manufacturing a wind turbine blade, the method includes processing a number of preformed parts into a collection of prefabricated laminates and assembling the collection of prefabricated laminates to build a shell structure defining a leading edge and a trailing edge.

First claim

What is claimed is:

1. A wind turbine blade comprising:
a shell structure defining a leading edge and a trailing edge; and
an upwind shell and a downwind shell joined along at least one of said leading edge and said trailing edge, wherein said shell structure comprises:
a spar cap laminate made from a first plurality of spar cap preformed parts;
a root laminate made from a second plurality of blade root preformed parts; and
an aerodynamic fairing laminate made from a third plurality of aerodynamic fairing preformed parts.

2. The wind turbine blade according to claim 1 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts has a mass less than 100 kg and wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts is less than 7.5 m in length.

3. The wind turbine blade according to claim 1 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts is created flat and configured to take a shape of the blade when assembled in plurality.

4. The wind turbine blade according to claim 1 , wherein more than 60% of said first plurality of spar cap preformed parts, more than 60% of said second plurality of blade root preformed parts, and more than 60% of said third plurality of aerodynamic fairing preformed parts are identical.

5. The wind turbine blade according to claim 1 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts comprises one or more of:
thermosetting or thermoplastic resin and further wherein each of said plurality of preformed parts comprises one or more of: no fiber, short fiber or continuous fiber.

6. A method of manufacturing the wind turbine blade according to claim 1 , said method comprising:
processing a number of preformed parts into a collection of prefabricated laminates;
assembling said collection of prefabricated laminates to build the shell structure defining the leading edge and the trailing edge, wherein said assembling said collection of prefabricated laminates comprises:
assembling the first plurality of spar cap preformed parts to build a first plurality of spar cap laminates;
assembling the second plurality of blade root preformed parts to build a second plurality of blade root laminates;
assembling the third plurality of aerodynamic fairing preformed parts to build a third plurality of aerodynamic fairing laminates; and
assembling said first plurality of spar cap laminates, said second plurality of blade root laminates and said third plurality of aerodynamic fairing laminates to build said upwind shell and said downwind shell.

7. The method of claim 6 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts has a mass less than 100 kg and wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts is less than 7.5 m in length.

8. The method of claim 6 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts is created flat and configured to take a shape of the blade when assembled in plurality.

9. The method of claim 6 , wherein more than 60 % of said first plurality of spar cap preformed parts, more than 60 % of said second plurality of blade root preformed parts, and more than 60 % of said third plurality of aerodynamic fairing preformed parts are identical.

10. The method of claim 6 , wherein each of said first plurality of spar cap preformed parts, said second plurality of blade root preformed parts, and said third plurality of aerodynamic fairing preformed parts comprises one or more of thermosetting resin and thermoplastic resin, and wherein each of said plurality of preformed parts comprises one or more of no fiber, short fiber and continuous fiber.

11. The wind turbine blade of claim 1 , wherein at least one preformed part of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts, and the third plurality of aerodynamic fairing preformed parts comprises at least two layers of fabric held together retention means different from a cured resin of the respective the spar cap laminate, the root laminate made from, and the aerodynamic fairing laminate.

12. The wind turbine blade of claim 1 , wherein a majority of preformed parts of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts, or the third plurality of aerodynamic fairing preformed parts are identical.

13. The wind turbine blade of claim 1 , wherein at least two preformed parts of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts, and the third plurality of aerodynamic fairing preformed parts are joined in an end-to-end configuration.

14. The wind turbine blade of claim 1 , wherein at least two preformed parts of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts, and the third plurality of aerodynamic fairing preformed parts are joined in a side-by-side configuration.

15. The wind turbine blade of claim 1 , wherein at least one preformed part of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts and the third plurality of aerodynamic fairing preformed parts has a length shorter than the length of the respective spar cap laminate, the root laminate, and the aerodynamic fairing laminate.

16. The wind turbine blade of claim 1 , wherein at least one preformed part of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts and the third plurality of aerodynamic fairing preformed parts has a first angled end formed at an angle and a second angled end formed at a supplementary angle to the angle of the first angled end.

17. The wind turbine blade of claim 1 , wherein a first preformed part of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts and the third plurality of aerodynamic fairing preformed parts has an angled end formed at an angle, and a second preformed part of the first plurality of spar cap preformed parts, the second plurality of blade root preformed parts and the third plurality of aerodynamic fairing preformed parts has a angled end formed at a supplementary angle to the angle of the angled end of the first preformed part so that the angled end of the first preformed part align and mate with the angled end of the second preformed part forming a scarf joint.

18. The wind turbine blade of claim 17 , further comprising a joint interface layer arranged between the angled end of the first preformed part and the angled end of the second preformed part.

19. The wind turbine blade of claim 17 , further comprising at least one pin inserted through the scarf joint between the first preformed part and the second preformed part.

20.

Assignees

• Blade Dynamics Ltd

Inventors

• Hayden Paul

Classifications

• F03D1/0679

  Load carrying structures, e.g. beams · CPC title

• F03D1/0687

  of the blade tip region · CPC title

• F03D1/0682

  incorporated into the shell structure · CPC title

• F03D1/0684

  Shear webs · CPC title

• F03D1/0681

  Spar caps · CPC title