Rotorblatt mit Mitteln zur Geräuschreduzierung

Details

Veröffentlichungs-Nr.

EP3812576

Aktenzeichen

EP19204871

Anmeldetag

23. Oktober 2019

Veröffentlichung

10. Mai 2023

Erteilung

10. Mai 2023

Rechtsraum

EP

IPC

G10K11/178F03D7/02

Abstract

The invention describes a rotor blade (2) with a leading edge (23) and a trailing edge (24), wherein- the rotor blade (2) is designed and configured for being exposed to a fluid flowing substantially from the leading edge (23) to the trailing edge (24),- the rotor blade (2) comprises at least three sensors (31) designed for detecting flow characteristics of the fluid and providing respective sensor signals, wherein the sensors (31) are arranged with a non-uniform spacing, and- the rotor blade (2) further comprises at least one actuator (32) for producing an anti-noise signal (36) based on a sensor signal,- the sensors (31) and the actuator (32) are arranged at the surface of the rotor blade (2), and- the actuator (32) is arranged and prepared such that flow-induced edge noise (35) of the rotor blade (2), which is generated by the fluid, is at least partly cancelled out by the anti-noise signal (36).The invention further describes a method for creating such rotor blade and a related wind turbine.

Anmelder

Firma

Siemens Gamesa Renewable Energy A/S

Land

🇩🇰 Dänemark

Fachgebiete