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      Phases

      • Purchase of turbines
      • Commissioning of blades
      • End of warranty
      • Operation
      • Lifetime extension

      Solutions

      • D-String®
      • D-Stiffener™
      • X-Stiffener™
      • D-TE™

      Courses

      • Structural Blade Course

      Tools

      • CAR Tool
      • Blades Data
      • Structural Analysis
      • Elastic instabilities
      • Testing

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  • International Conference 2022
  • Services & Solutions

      Phases

      • Purchase of turbines
      • Commissioning of blades
      • End of warranty
      • Operation
      • Lifetime extension

      Solutions

      • D-String®
      • D-Stiffener™
      • X-Stiffener™
      • D-TE™

      Courses

      • Structural Blade Course

      Tools

      • CAR Tool
      • Blades Data
      • Structural Analysis
      • Elastic instabilities
      • Testing

      Downloads

      • All Downloads
  • Cases
  • R&D Projects
  • Who we are

      Who we are

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Case 3 - D-Stiffener™

Problem

Picture

Tegnebræt 5 kopi 2
Curtailment of WTG due to overload of the blade

Solution requested


Resist strong wind by enhancing the structural strength of the blades

Case details


0.9 MW
Turbine
27m
Length
2012
Year of commision

Deliverables


Technical opinion
Root cause analysis

6 blades with D-Stiffener™

Case pictures

Results


Structural strength of blade increased by 40%
AEP increase/WTG = 255 MWh/year
ROI = 18 months

Cases


sample62

D-String®

Stopping crack development without structural repair
sample62

D-Stiffener™

Elimination of open trailing edge in mid span
sample62

Blade course

2 days advanced structural blade course
© Bladena 2020, Banestrøget 13, 1, 2630 Taastrup
  • International Conference 2022
  • Services & Solutions

      Phases

      • Purchase of turbines
      • Commissioning of blades
      • End of warranty
      • Operation
      • Lifetime extension

      Solutions

      • D-String®
      • D-Stiffener™
      • X-Stiffener™
      • D-TE™

      Courses

      • Structural Blade Course

      Tools

      • CAR Tool
      • Blades Data
      • Structural Analysis
      • Elastic instabilities
      • Testing

      Downloads

      • All Downloads
  • Cases
  • R&D Projects
  • Who we are

      Who we are

      • About us
      • Management & Board
      • Career
  • News
  • Contact