ClassID:

142440

F03D7/0276 - page 2 - CPC Classification

Classification description:

Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor Controlling rotor speed, e.g. variable speed

Recent Application in this class:
#301
20110187108
2011-08-04

WIND TURBINE GENERATOR AND METHOD FOR CONTROLLING WIND TURBINE GENERATOR

#302
20110178771
2011-07-21

Method for evaluating performance of a system for controlling pitch of a set of blades of a wind turbine

#303
20110175352
2011-07-21

Method of controlling a variable speed wind turbine generator

#304
20110163552
2011-07-07

Compound rotor system of wind energy conversion system (WECS) and WECS

#305
20110144816
2011-06-16

Intelligent active power management system for renewable variable power generation

#306
20110142622
2011-06-16

Wind turbine and method for controlling a wind turbine

#307
20110140433
2011-06-16

Method of controlling a variable speed wind turbine

#308
20110140423
2011-06-16

Wind turbine and method for operating a wind turbine

#309
20110133453
2011-06-09

Multiple generator wind turbine and method of operation thereof

#310
20110109096
2011-05-12

Fixed pitch wind (or water) turbine with centrifugal weight control (CWC)

#311
20110057445
2011-03-10

Method of operation of a wind turbine to guarantee primary or secondary regulation in an electric grid

#312
20110042950
2011-02-24

Wind turbine generator and method of controlling the same

#313
20110031748
2011-02-10

Wind turbine generator, control method for wind turbine generator, wind turbine generator system, and control method for wind turbine generator system

#314
20110018270
2011-01-27

DOUBLY-CONTROLLED ASYNCHRONOUS GENERATOR

#315
20110006527
2011-01-13

Method and apparatus for controlling noise levels of a turbine with minimal loss in energy yield

#316
20100314875
2010-12-16

SYSTEM AND METHOD FOR CONTROLLING A WIND TURBINE

#317
20100237618
2010-09-23

Wind power generator system

#318
20100226774
2010-09-09

Wind turbine control system and apparatus

#319
20100226772
2010-09-09

Blade control system

#320
20100225113
2010-09-09

Method for the operation of a wind turbine and wind turbine using this method

#321
20100219636
2010-09-02

Power generating system

#322
20100181769
2010-07-22

Motor load reduction in a wind power plant

#323
20100140941
2010-06-10

Control of the rotational speed of a wind turbine which is impeded to export electrical power to an electricity network

#324
20100133821
2010-06-03

Method and system for extracting inertial energy from a wind turbine

#325
20100133818
2010-06-03

Method and system for noise controlled operation of a wind turbine

#326
20100133817
2010-06-03

Method and apparatus for controlling the tip speed of a blade of a wind turbine

#327
20100082276
2010-04-01

PROCESS FOR MONITORING A DRIVE TRAIN COMPONENT OF A WIND POWER PLANT

#328
20100078939
2010-04-01

System and method for controlling a wind turbine during loss of grid power and changing wind conditions

#329
20100072751
2010-03-25

Variable speed wind turbine, a resonant control system, a method of operating a variable speed wind turbine, use of a resonant control system and use of a method in a variable speed wind turbine

#330
20100040468
2010-02-18

Method of operating a wind turbine, a wind turbine and a cluster of wind turbines

#331
20100038909
2010-02-18

Method of operating a wind turbine with pitch control, a wind turbine and a cluster of wind turbine

#332
20090322085
2009-12-31

METHOD AND APPARATUS FOR ENHANCED WIND TURBINE DESIGN

#333
20090302609
2009-12-10

Power train for a wind power plant

#334
20090295160
2009-12-03

Method for increasing energy capture in a wind turbine

#335
20090292397
2009-11-26

Method and apparatus for damping tower oscillation in a wind turbine

#336
20090261588
2009-10-22

Method and system for operating a wind energy installation

#337
20090250932
2009-10-08

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

#338
20090224543
2009-09-10

Wind plant and method of initiating braking actions in different operating modes

#339
20090212566
2009-08-27

Method for operating a wind energy plant and wind energy plant

#340
20090206606
2009-08-20

Variable speed wind turbine with a doubly-fed induction generator and rotor and grid inverters that use scalar controls

#341
20090202347
2009-08-13

Systems and methods for mitigating the effects of wind turbines on radar

#342
20090146424
2009-06-11

System and method for controlling a wind power plant

#343
20090146423
2009-06-11

Power generating system

#344
20090081042
2009-03-26

METHOD OF CONTROLLING A WINDMILL, ESPECIALLY IN STAND-ALONE OPERATION AND A WINDMILL

#345
20090066089
2009-03-12

Wind power generator system and control method of the same

#346
20090060740
2009-03-05

Method of operating a wind turbine and wind turbine

#347
20090022589
2009-01-22

Variable speed hub

#348
20090021014
2009-01-22

Wind energy installation with an extended rotation speed range

#349
20080150285
2008-06-26

Doubly-controlled asynchronous generator

#350
20080136188
2008-06-12

Method and system for regulation of the rotational speed of a rotor on a wind turbine

#351
20080118342
2008-05-22

Oscillation damping of a wind turbine

#352
20080116690
2008-05-22

Method and apparatus for the operation of a wind energy plant in the power-limited operation

#353
20080111380
2008-05-15

System and method for utility and wind turbine control

#354
20080084068
2008-04-10

Wind turbine operating apparatus and operating method

#355
20080066569
2008-03-20

Power train for a wind power plant

#356
20080054641
2008-03-06

Wind power installation having an auxiliary generator and method for the control thereof

#357
20070216165
2007-09-20

Hydrogen production system using wind turbine generator

#358
20070212209
2007-09-13

Method For Reduction Of Axial Power Variations Of A Wind Power Plant

#359
20070205602
2007-09-06

Methods and apparatus for controlling rotational speed of a rotor

#360
20070194574
2007-08-23

Method for the operation of a wind turbine generator system

#361
20070166147
2007-07-19

Wind turbine to produce electricity

#362
20070124025
2007-05-31

Windpark turbine control system and method for wind condition estimation and performance optimization

#363
20070120369
2007-05-31

System and method for utility and wind turbine control

#364
20070018457
2007-01-25

Method of operating a wind turbine

#365
20060113800
2006-06-01

Operating method for a wind turbine with a supersynchronous cascade

#366
20060033339
2006-02-16

Method in a wind power plant

#367
20050253396
2005-11-17

Variable speed wind turbine generator

#368
20050012339
2005-01-20

Variable speed distributed drive train wind turbine system

#369
19050435
2025-08-19

Wind turbine spinning reserve with selectable confidence level

#370
18244385
2025-07-29

Wind turbine management system for controlled energy storage

#371
18095358
2026-01-27

Systems and methods for optimal phase shift between dynamic control actions for wind turbines

#372
17825541
2023-02-21

Wind turbine control apparatus and method therefor

#373
15725359
2018-12-25

Fan control circuit and fan control method

#374
15482313
2022-07-12

Wind turbine

#375
15263348
2018-12-11

System and method for protecting a wind turbine against impending weather events

#376
14847242
2016-09-13

Method of stabilizing a power grid and providing a synthetic aperture radar using a radar wind turbine