Patent · US Active

Rotor blade assembly for mitigating stall-induced vibrations

US12104571B2 · kind B2 · utility

0Cited by

22References

18Claims

0Family size

Assignee

LM WIND POWER A/S · DK

Inventors

Andreas Herrig · Garching an der Alz, DE
Martin Stettner · Salzbergen, DE
Benjamin Patrick Hallissy · Greenville, US

Key dates

Filing date	Jun 29, 2021
Grant date	Oct 1, 2024
Priority date	—
Expiry date	Jun 29, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotor blade assembly for mitigating stall-induced vibrations of a wind turbine during standstill includes at least one protrusion secured to the leading-edge of a rotor blade and defining an extended leading edge. The protrusion(s) wraps around a portion of the rotor blade from the suction side to the pressure side of the rotor blade. The protrusion(s) has a root-side face and a tip-side face disposed opposite thereof. The root-side face is arranged at an angle relative to a chordwise reference line. The angle is greater than zero degrees and less than or equal to 45 degrees with respect to the chordwise reference line. The protrusion(s) is configured to affect a chordwise airflow and thereby mitigate a stall-induced vibration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.