Patent · US Active

System and method for trailing edge noise reduction of a wind turbine blade

US9951749B2 · kind B2 · utility

0Cited by

3References

21Claims

0Family size

Assignee

LM WP PATENT HOLDING A/S · DK

Inventors

Ashish Singh · Munich, DE
Ganesh Ramanathan · Chennai, IN
Jitendra Harish Bijlani · Savanuru, IN
Naveen Parihar · Bellevue, US

Key dates

Filing date	Oct 24, 2013
Grant date	Apr 24, 2018
Priority date	—
Expiry date	Oct 18, 2034

Classification

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

Abstract

A system and method for reducing the operational noise of a blunt trailing edge of a wind turbine blade is described. The system involves increasing the trailing edge solid angle at the blade trailing edge by providing a wedge element or projection adjacent the trailing edge of the blade, the wedge element acting to provide improved mixing of the suction side and pressure side flows at the blunt trailing edge, thereby reducing the strength of vortex shedding at the trailing edge and the associated operational noise.

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