WO2012066107A3 - Method for determining operational states of a wind turbine and wind turbine - Google Patents

Method for determining operational states of a wind turbine and wind turbine Download PDF

Info

Publication number
WO2012066107A3
WO2012066107A3 PCT/EP2011/070411 EP2011070411W WO2012066107A3 WO 2012066107 A3 WO2012066107 A3 WO 2012066107A3 EP 2011070411 W EP2011070411 W EP 2011070411W WO 2012066107 A3 WO2012066107 A3 WO 2012066107A3
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
rotor
determined
operational states
blade
Prior art date
Application number
PCT/EP2011/070411
Other languages
German (de)
French (fr)
Other versions
WO2012066107A4 (en
WO2012066107A9 (en
WO2012066107A2 (en
Inventor
Michael Schulz
Ingo Ibendorf
Original Assignee
Suzlon Energy Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzlon Energy Gmbh filed Critical Suzlon Energy Gmbh
Publication of WO2012066107A2 publication Critical patent/WO2012066107A2/en
Publication of WO2012066107A9 publication Critical patent/WO2012066107A9/en
Publication of WO2012066107A3 publication Critical patent/WO2012066107A3/en
Publication of WO2012066107A4 publication Critical patent/WO2012066107A4/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/80—Diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/602—Control system actuates through electrical actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention relates to a method for determining the rotational speed of the rotor of a wind turbine and/or for monitoring the state of a rotor blade of a wind turbine, comprising the following method steps: measuring the current of at least one blade adjustment motor of a wind turbine over a predetermined period of time, characterized in that the rotational speed of the rotor is determined by ascertaining the period of oscillation of the motor current, and the rotor position is determined by way of zero point evaluation and gradient evaluation, and/or the state of the rotor blade is determined with the aid of a time or frequency analysis of the motor current of at least one blade adjustment motor.
PCT/EP2011/070411 2010-11-17 2011-11-17 Method for determining operational states of a wind turbine WO2012066107A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010044083.3 2010-11-17
DE102010044083 2010-11-17

Publications (4)

Publication Number Publication Date
WO2012066107A2 WO2012066107A2 (en) 2012-05-24
WO2012066107A9 WO2012066107A9 (en) 2012-07-12
WO2012066107A3 true WO2012066107A3 (en) 2012-08-30
WO2012066107A4 WO2012066107A4 (en) 2012-11-08

Family

ID=44983564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/070411 WO2012066107A2 (en) 2010-11-17 2011-11-17 Method for determining operational states of a wind turbine

Country Status (2)

Country Link
DE (1) DE102011086608A1 (en)
WO (1) WO2012066107A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2012388403B2 (en) * 2012-09-20 2015-09-10 Korea Electric Power Corporation Apparatus for monitoring wind turbine blade and method thereof
DE102012020054A1 (en) 2012-10-12 2014-04-17 Carl Von Ossietzky Universität Oldenburg Method for adjusting a pitch angle of rotor blades
US10371123B2 (en) 2013-08-19 2019-08-06 General Electric Company Methods and systems for detecting wind turbine rotor blade damage
US10273940B2 (en) 2016-05-12 2019-04-30 General Electric Company System and method for detecting pitch bearing damage in a wind turbine
CN106523299B (en) * 2016-12-13 2019-01-04 浙江运达风电股份有限公司 Double-fed fan motor unit blade unbalance detection based on stator current data driving
US11473564B2 (en) 2018-01-18 2022-10-18 General Electric Company System and method for monitoring a wind turbine pitch bearing
CN109958585B (en) * 2019-03-22 2020-05-22 明阳智慧能源集团股份公司 Overspeed protection method of wind generating set based on wind wheel rotation speed detection
US20230011028A1 (en) * 2019-12-17 2023-01-12 General Electric Company System and method for monitoring rotor blade health of a wind turbine
US11905927B2 (en) 2020-04-30 2024-02-20 Vestas Wind Systems A/S Frequency content based monitoring of wind turbine blade pitch system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679566A1 (en) * 2004-12-28 2006-07-12 Fanuc Ltd Threshold determination for a tool damage/abnormality detecting device
GB2448940A (en) * 2007-05-04 2008-11-05 Insensys Ltd Wind Turbine Monitoring
WO2009058357A1 (en) * 2007-11-01 2009-05-07 Mls Electrosystem, Llc System and method for controlling a turbine blade
EP2208886A2 (en) * 2009-01-20 2010-07-21 REpower Systems AG Reduction of engine strain of a wind energy assembly
WO2010133444A2 (en) * 2009-05-17 2010-11-25 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
EP2381098A2 (en) * 2010-04-22 2011-10-26 General Electric Company Method for measuring a rotational position of a rotor blade of a wind turbine and measuring device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679566A1 (en) * 2004-12-28 2006-07-12 Fanuc Ltd Threshold determination for a tool damage/abnormality detecting device
GB2448940A (en) * 2007-05-04 2008-11-05 Insensys Ltd Wind Turbine Monitoring
WO2009058357A1 (en) * 2007-11-01 2009-05-07 Mls Electrosystem, Llc System and method for controlling a turbine blade
EP2208886A2 (en) * 2009-01-20 2010-07-21 REpower Systems AG Reduction of engine strain of a wind energy assembly
WO2010133444A2 (en) * 2009-05-17 2010-11-25 Ssb Wind Systems Gmbh & Co. Kg Method for examining an electric energy accumulator
EP2381098A2 (en) * 2010-04-22 2011-10-26 General Electric Company Method for measuring a rotational position of a rotor blade of a wind turbine and measuring device

Also Published As

Publication number Publication date
WO2012066107A4 (en) 2012-11-08
WO2012066107A9 (en) 2012-07-12
DE102011086608A1 (en) 2012-07-12
WO2012066107A2 (en) 2012-05-24

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