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1. WO2007141660 - VARIABLE SPEED WIND TURBINE HAVING AN EXCITER MACHINE AND A POWER CONVERTER NOT CONNECTED TO THE GRID

Publication Number WO/2007/141660
Publication Date 13.12.2007
International Application No. PCT/IB2007/002325
International Filing Date 28.02.2007
IPC
H02P 9/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
9Arrangements for controlling electric generators for the purpose of obtaining a desired output
CPC
F03D 7/0224
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
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
022Adjusting aerodynamic properties of the blades
0224Adjusting blade pitch
F03D 7/0284
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
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
028Controlling motor output power
0284in relation to the state of the electric grid
F03D 9/255
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
9Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
20Wind motors characterised by the driven apparatus
25the apparatus being an electrical generator
255connected to an electrical general supply grid; Arrangements therefor
F05B 2200/261
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
2200Mathematical features
20Special functions
26trigonometric
261Sine
F05B 2260/75
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
70Adjusting of angle of incidence or attack of rotating blades
75the adjusting mechanism not using auxiliary power sources ("servos")
F05B 2270/1016
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
10Purpose of the control system
1016in variable speed operation
Applicants
  • INGETEAM, S.A. [ES]/[ES] (AllExceptUS)
  • RIVAS, Gregorio [ES]/[ES] (UsOnly)
  • GARMENDIA, Iker [ES]/[ES] (UsOnly)
  • ELORRIAGA, Josu [ES]/[ES] (UsOnly)
  • MAYOR, Jesus [ES]/[ES] (UsOnly)
  • BARBACHANO, Javier, Perez [ES]/[ES] (UsOnly)
  • SOLE, David [ES]/[ES] (UsOnly)
  • ACEDO, Jorge [ES]/[ES] (UsOnly)
Inventors
  • RIVAS, Gregorio
  • GARMENDIA, Iker
  • ELORRIAGA, Josu
  • MAYOR, Jesus
  • BARBACHANO, Javier, Perez
  • SOLE, David
  • ACEDO, Jorge
Priority Data
11/477,59330.06.2006US
60/783,02917.03.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VARIABLE SPEED WIND TURBINE HAVING AN EXCITER MACHINE AND A POWER CONVERTER NOT CONNECTED TO THE GRID
(FR) ÉOLIENNE À VITESSE VARIABLE ÉQUIPÉE D'UNE MACHINE D'EXCITATION ET D'UN CONVERTISSEUR D'ÉNERGIE NON CONNECTÉS AU RÉSEAU ÉLECTRIQUE
Abstract
(EN)
A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine (212) mechanically coupled to the DFIG and a power converter (230) placed between a rotor (211) of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
(FR)
Une éolienne à vitesse variable possédant un générateur d'induction à double alimentation (DFIG) comprend une machine d'excitation couplée mécaniquement au DFIG et un convertisseur de secteur placé entre un rotor du DFIG et la machine d'excitation. Ainsi, le convertisseur de secteur n'est pas directement connecté à la grille, ce qui permet d'éviter l'introduction de distorsion harmonique non désirée et d'obtenir une meilleure qualité d'énergie alimentant le réseau électrique. De plus, l'éolienne à vitesse variable comprend un système de commande de puissance et un système de régulation à pas variable.
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