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1. WO2020200754 - DISTRIBUTED SYSTEM FOR AND METHOD OF DETECTING POSITION AND/OR SPEED OF A ROTOR BLADE DURING OPERATION OF A WIND TURBINE

Publication Number WO/2020/200754
Publication Date 08.10.2020
International Application No. PCT/EP2020/057211
International Filing Date 17.03.2020
IPC
F03D 17/00 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
17Monitoring or testing of wind motors, e.g. diagnostics
CPC
F03D 17/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
17Monitoring or testing of wind motors, e.g. diagnostics
F05B 2260/80
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
BINDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
2260Function
80Diagnostics
F05B 2270/805
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
BINDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
2270Control
80Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
805Radars
G01S 1/00
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
H01Q 1/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
44using equipment having another main function to serve additionally as an antenna ; , e.g. means for giving an antenna an aesthetic aspect
H01Q 13/203
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
13Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
20Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
203Leaky coaxial lines
Applicants
  • SIEMENS GAMESA RENEWABLE ENERGY A/S [DK]/[DK]
Inventors
  • NAGEL, Eirik
  • NIEUWENHUIZEN, John
Agents
  • ASPACHER, Karl-Georg
Priority Data
19166602.301.04.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DISTRIBUTED SYSTEM FOR AND METHOD OF DETECTING POSITION AND/OR SPEED OF A ROTOR BLADE DURING OPERATION OF A WIND TURBINE
(FR) SYSTÈME DISTRIBUÉ ET PROCÉDÉ DE DÉTECTION DE POSITION ET/OU DE VITESSE D'UNE PALE DE ROTOR PENDANT LE FONCTIONNEMENT D'UNE ÉOLIENNE
Abstract
(EN)
A system for detecting rotor blade position and/or rotor blade speed during operation of a wind turbine (1) is provided, the wind turbine (1) including a tower (2) and at least one rotor blade (4). The system comprises a leaky feeder arrangement (10) configured to be mounted at the tower (2) of the wind turbine (1), an RF unit (20) coupled to the leaky feeder arrangement (10) and configured to supply a first radar signal (100) to the leaky feeder arrangement (10) and to receive a second radar signal (200) from the leaky feeder arrangement (10), wherein the second radar signal (200) is reflected from the rotor blade (4) when the first radar signal (100) hits the rotor blade (4), a processing unit (30), and an optical link arrangement (40) interconnecting the processing unit (30) and the RF unit (20). The processing unit (30) is configured to analyse a first signal corresponding to the first radar signal (100) and a second signal corresponding to the second radar signal (200) in order to determine the position and/or the speed of the rotor blade (4). A wind park and a method are also provided.
(FR)
L'invention concerne un système de détection de la position de pale de rotor et/ou de la vitesse de pale de rotor pendant le fonctionnement d'une éolienne (1), l'éolienne (1) comprenant une tour (2) et au moins une pale de rotor (4). Le système comprend un agencement câble rayonnant (10) configuré pour être monté sur la tour (2) de l'éolienne (1), une unité RF (20) couplée à l'agencement câble rayonnant (10) et configurée pour fournir un premier signal radar (100) à l'agencement câble rayonnant (10) et pour recevoir un deuxième signal radar (200) provenant de l'agencement câble rayonnant (10), le deuxième signal radar (200) étant réfléchi par la pale de rotor (4) lorsque le premier signal radar (100) atteint la pale de rotor (4), une unité de traitement (30), et un agencement liaison optique (40) interconnectant l'unité de traitement (30) et l'unité RF (20). L'unité de traitement (30) est configurée pour analyser un premier signal correspondant au premier signal radar (100) et un deuxième signal correspondant au deuxième signal radar (200) afin de déterminer la position et/ou la vitesse de la pale de rotor (4). L'invention concerne également un parc éolien et un procédé associé.
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