ClassID:

142445

F03D7/0296 - page 2 - CPC Classification

Classification description:

Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce vibration or noise

Recent Application in this class:
#301
20110318165
2011-12-29

Method and system for utilizing rotorspeed acceleration to detect asymmetric icing

#302
20110316277
2011-12-29

Blade pitch control in a wind turbine installation

#303
20110309622
2011-12-22

Wind turbine generator, active damping method thereof, and windmill tower

#304
20110248686
2011-10-13

Method for the operation of a wind energy plant at sudden voltage changes in the grid

#305
20110227343
2011-09-22

Wind turbine generator having electrical storage device and acoustic noise suppression method thereof

#306
20110223018
2011-09-15

Control System, Wind Farm, And Methods Of Optimizing The Operation Of A Wind Turbine

#307
20110223006
2011-09-15

SYSTEM, DEVICE, AND METHOD FOR NOISE-BASED OPERATION OF WIND TURBINES

#308
20110204636
2011-08-25

Wind turbine and operating same

#309
20110198174
2011-08-18

Adjustable suspension arrangement for wind turbine towers

#310
20110175356
2011-07-21

Control of wind park noise emission

#311
20110156393
2011-06-30

Wind turbine generator, active damping method thereof, and windmill tower

#312
20110148113
2011-06-23

VIBRATION DAMPING OF WIND TURBINE SHAFT

#313
20110142593
2011-06-16

Method and system for validating wind turbine

#314
20110135475
2011-06-09

Systems and methods for monitoring a condition of a rotor blade for a wind turbine

#315
20110123330
2011-05-26

ANTI-NOISE WIND TURBINE

#316
20110115233
2011-05-19

Wind power plant and method for operating the same

#317
20110076142
2011-03-31

Method for reducing vibrations in wind turbines and wind turbine implementing said method

#318
20100301604
2010-12-02

Wind turbine, a method for controlling a wind turbine and use thereof

#319
20100289266
2010-11-18

METHOD FOR THE OPERATION OF A WIND POWER PLANT

#320
20100284787
2010-11-11

Individual blade noise measurement system and method for wind turbines

#321
20100219634
2010-09-02

Wind turbine control method, control unit and wind turbine

#322
20100209243
2010-08-19

Monitoring of blade frequencies of a wind turbine

#323
20100187820
2010-07-29

Wind turbine generator, active damping method thereof, and windmill tower

#324
20100158687
2010-06-24

Control modes for extendable rotor blades

#325
20100148507
2010-06-17

Method for controlling the operation of a wind turbine based on deviation between operating and predetermined frequency response functions

#326
20100143119
2010-06-10

Method and apparatus for controlling acoustic emissions of a wind turbine

#327
20100143117
2010-06-10

System and method for wind turbine noise control and damage detection

#328
20100135798
2010-06-03

WIND TURBINE NOISE CONTROLS

#329
20100133819
2010-06-03

Wind turbine acoustic emission control system and method

#330
20100133818
2010-06-03

Method and system for noise controlled operation of a wind turbine

#331
20100119369
2010-05-13

Control of rotor during a stop process of a wind turbine

#332
20100111693
2010-05-06

WIND TURBINE DAMPING OF TOWER RESONANT MOTION AND SYMMETRIC BLADE MOTION USING ESTIMATION METHODS

#333
20100098541
2010-04-22

Method and system for operating a wind turbine generator

#334
20100074749
2010-03-25

Differential vibration control for wind turbines

#335
20100014969
2010-01-21

WIND TURBINE WITH BLADE PITCH CONTROL TO COMPENSATE FOR WIND SHEAR AND WIND MISALIGNMENT

#336
20100013235
2010-01-21

Method and arrangement for damping of tower-oscillations

#337
20090292397
2009-11-26

Method and apparatus for damping tower oscillation in a wind turbine

#338
20090250932
2009-10-08

Method of damping tower vibrations of a wind turbine and control system for wind turbines

#339
20090246020
2009-10-01

Method for damping edgewise oscillations in one or more blades of a wind turbine, an active stall controlled wind turbine and use hereof

#340
20090230681
2009-09-17

Model based wind turbine drive train vibration damper

#341
20090185901
2009-07-23

Wind turbine, a method for damping edgewise oscillations in one or more blades of a wind turbine by changing the blade pitch and use hereof

#342
20090169378
2009-07-02

Wind turbine, wind turbine controller and method for controlling a wind turbine

#343
20090142178
2009-06-04

Wind turbine tower and a control system and method for altering the eigenfrequency of a wind turbine tower

#344
20090110540
2009-04-30

Variable speed operating system and method of operation for wind turbines

#345
20090035136
2009-02-05

Methods and apparatus for balancing a rotor

#346
20080260514
2008-10-23

Method for damping tower vibrations in a wind turbine installation

#347
20080206055
2008-08-28

Wind turbine blade

#348
20080206051
2008-08-28

Wind turbine generator, active damping method thereof, and windmill tower

#349
20080164091
2008-07-10

Tonal emission control for wind turbines

#350
20080118342
2008-05-22

Oscillation damping of a wind turbine

#351
20080067815
2008-03-20

Vibration damping method for variable speed wind turbines

#352
20070294049
2007-12-20

Methods and apparatus for balancing a rotor

#353
20070253818
2007-11-01

Method for operating a wind power plant

#354
20070176428
2007-08-02

Wind turbine generator

#355
20070114799
2007-05-24

Systems and methods for damping a displacement of a wind turbine tower

#356
20070031237
2007-02-08

Method and apparatus for producing wind energy with reduced wind turbine noise

#357
20060214429
2006-09-28

Wind turbine generator system

#358
20060099075
2006-05-11

Wind turbine in parked position

#359
20060066111
2006-03-30

Vibration damping system and method for variable speed wind turbines

#360
20060033339
2006-02-16

Method in a wind power plant

#361
20050017512
2005-01-27

Wind turbine generator system

#362
17952523
2023-10-31

Method and system for detection and mitigation of edge-wise vibrations in wind turbine blades

#363
17743626
2023-09-12

Method for installing an add-on device on a wind turbine blade

#364
17489371
2024-01-16

Nacelle coupled fairings