MONITORING OF BLADES IN WIND TURBINES

Patent Number: EP-3954897-A1

Publication Year: 2022

Application Year: 2020

Priority Year: 2020

Jurisdictions: EP

Status: Withdrawn

Inventors:

BERNHAMMER LARRY O BERNHAMMER LARS OLIVER BERNHAMMER LARS OLIVER BERNHAMMER LARS OLIVER BERNHAMMER LARS OLIVER BERNHAMMER LARS OLIVER BERNHAMMER LARS OLIVER LADPLI PURIM LADPLI PURIM LADPLI PURIM LADPLI PURIM LADPLI PURIM LADPLI PURIM RADEPLEE PAUL

Applicants:

  1. Siemens (Denmark)
  2. [NORA names: Siemens Gamesa Renewable Energy; Private Research; Denmark; Europe, EU; Nordic; OECD]

Abstract

A method for detecting a status of a rotor blade for a wind turbine, the rotor blade including at least an aerodynamic device for influencing the airflow, the aerodynamic device being movable between a first and a second configuration, the method including the steps of: measuring an output signal measured by at least one sensor installed on the wind turbine, moving the aerodynamic device between the first configuration and the second configuration, measuring a change in the induced output signal, post-processing the measured output signal, wherein the post-processing is performed in the frequency domain and includes: deriving a frequency spectrum 1, calculating an upper spectrum interval of the frequency spectrum above a frequency threshold value, comparing the upper spectrum interval with a reference frequency spectrum deriving a status of the rotor blade based on the step of comparing.

Patent Family Records (7)

MONITORING OF BLADES IN WIND TURBINES  

Siemens (Denmark), Siemens Gamesa Renewable Energy AS BERNHAMMER LARS OLIVER, LADPLI PURIM

2024, EP-4172498-B1

MONITORING OF ROTOR BLADES IN WIND TURBINES  

SIEMENS GAMESA RENEWABLE ENERGY AS, Siemens (Denmark) BERNHAMMER LARS OLIVER, LADPLI PURIM

2024, DK-4172498-T3

MONITORING OF BLADES IN WIND TURBINES  

Siemens (Denmark), Siemens Gamesa Renewable Energy AS BERNHAMMER LARS OLIVER, LADPLI PURIM

2023, US-20230304477-A1

MONITORING OF BLADES IN WIND TURBINES  

Siemens (Denmark), Siemens Gamesa Renewable Energy AS BERNHAMMER LARS OLIVER, LADPLI PURIM

2023, EP-4172498-A1

Monitoring of blades in a wind turbine  

Siemens Gamesa Renewable Energy BERNHAMMER LARRY O, RADEPLEE PAUL

2023, CN-116018459-A

MONITORING OF BLADES IN WIND TURBINES  

SIEMENS GAMESA RENEWABLE ENERGY AS, Siemens (Denmark) BERNHAMMER LARS OLIVER, LADPLI PURIM

2022, WO-2022033816-A1

MONITORING OF BLADES IN WIND TURBINES

Siemens (Denmark), Siemens Gamesa Renewable Energy AS BERNHAMMER LARS OLIVER, LADPLI PURIM

2022, EP-3954897-A1

Data Provider: Digital Science