Patent · US Active

Detection of deformation of a wind turbine blade

US8714912B2 · kind B2 · utility

2Cited by

1References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Roland Gierlich · Rheinbach, DE
Jörg Hüttner · Hof, DE
Andreas Ziroff · Munich, DE

Key dates

Filing date	Dec 16, 2010
Grant date	May 6, 2014
Priority date	—
Expiry date	Aug 24, 2032

Classification

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

Abstract

An arrangement for detecting bending deflection of a wind turbine blade is provided. The arrangement for the wind turbine includes a radio transmitter and a linear antenna array assigned to the radio transmitter. The radio transmitter is mounted on the blade tip and emits a signal. The antenna array is mounted on the rotor of the wind turbine in a co-rotating manner and receives the signal. On the basis of the transit times of the signal from the rotor to the individual antennas of the array, the position of the radio transmitter relative to the array is determined. In the event of blade deflection, for example when a high wind load is present, the relative position changes which is detected by the arrangement.

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