WO2012122965A2 - Générateur électrique pour une éolienne - Google Patents

Générateur électrique pour une éolienne Download PDF

Info

Publication number
WO2012122965A2
WO2012122965A2 PCT/DE2012/000245 DE2012000245W WO2012122965A2 WO 2012122965 A2 WO2012122965 A2 WO 2012122965A2 DE 2012000245 W DE2012000245 W DE 2012000245W WO 2012122965 A2 WO2012122965 A2 WO 2012122965A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor shaft
permanent magnets
generator
wind turbine
pole
Prior art date
Application number
PCT/DE2012/000245
Other languages
German (de)
English (en)
Other versions
WO2012122965A3 (fr
Inventor
Kostakis Andreu
Original Assignee
Uni Wind 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 Uni Wind GmbH filed Critical Uni Wind GmbH
Publication of WO2012122965A2 publication Critical patent/WO2012122965A2/fr
Publication of WO2012122965A3 publication Critical patent/WO2012122965A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine

Definitions

  • the invention relates to an electric generator for a wind turbine, in particular a réellepolgenerator for a gearless wind turbine.
  • wind turbines which are characterized by high efficiency even in different wind conditions. This condition can best be met with a gearless wind turbine with a synchronous generator.
  • the object of the invention is to provide an electric generator for a wind turbine available that meets a wide power demand and even with different wind conditions when used in a getrie ⁇ - laden wind turbine, a conversion of the offered wind energy into electrical energy with a high efficiency allows.
  • the electric generator is designed as réellepolma- machine, wherein the rotor of the generator directly, i. without
  • Interposition of a gearbox is connected to the rotor of the wind turbine and at the rotor shaft of the generator at least two sets of polrelienden magnet coils and / or permanent magnets for generating at least two separate excitation magnetic fields are arranged and to each field magnetic field, a separate stator with associated induction windings can be arranged.
  • three or more sets of pole-forming magnetic coils and / or permanent magnets are arranged on the rotor shaft of the generator, so that depending on the electrical power to be installed, one, two, three or more separate stators are to be arranged with associated induction windings, wherein a polrelienden Magnetspulen- or Permanent magnet set is assigned to generate a field magnetic field, a stator.
  • a generator according to the invention thus comprises a predetermined constant number of sets of pole-forming Solenoids and / or permanent magnets for generating a predetermined constant number of exciting magnetic fields and depending on power requirements one, two, three or more stators, wherein the number of stators limited to the number of sets of polbüdenden magnetic coils and / or permanent magnets to generate excitation magnetic fields is.
  • An associated stator with induction windings also surrounds the polbüdenden magnetic coils and / or permanent magnets in a known manner and also extends in the longitudinal axial direction along a predetermined longitudinal axial portion of the rotor shaft.
  • Each further sets of pile-forming solenoid coils and / or permanent magnet for generating each further excitation magnetic fields of the rotor shaft join in leksaxia ⁇ ler direction, you can according to need to be installed electric power, to be surrounded by stators of induction coils.
  • a set of pile-forming solenoid coils and / or permanent magnets for the generation ⁇ supply an excitation magnetic field and an associated stator with induction coils form a module of a generator according to the invention, which can produce a predetermined electrical power.
  • An electric generator may comprise a plurality of modules, depending on the size of the electrical power to be installed. The maximum number of modules which may include a generator, depends on the number of sets of pile-forming solenoid coils and / or permanent ⁇ magnets are arranged on the rotor shaft of the generator.
  • Solenoids can be used with the necessary excitation current. It is understood that the rotor of the wind turbine is interpreted or dimensioned so that the generated with the rotor mechanical power of the installed in the wind turbine electric power of the generator is adjusted. A power conversion of a wind turbine by adding or removing one or possibly more stators is possible, while of course, the rotor of Windkraftstromden new performance parameters is adjusted.
  • An existing wind turbine with an inventive electrical generator of this electrical ⁇ rule generator can be switched to a different power on demand as part of the power range, and only add the stators of the generator or to be removed and the rotor of the wind turbine is to be changed,
  • the electric generator can be designed as a synchronous generator, is suitable for use in a gearless wind turbine and allows the construction of wind turbines with high efficiency in different wind conditions.
  • FIG. 1 shows a schematic representation of a generator for a wind power station with two stators
  • Figure 2 a schematic representation of a generator for a wind turbine with a stator.
  • Figure 1 illustrates a trained as mecanical ⁇ tor for a gearless wind turbine.
  • a base plate 1 On a base plate 1 are a front and a rear bearing bracket 2 and 3 mounted with plain bearings 4 for supporting a rotor shaft 5.
  • the rotor head plate 6 At the through the front bearing bracket 2 by radical end of the rotor shaft 5 is directly without the interposition of a gearbox, the rotor head plate 6, to which the rotor blades of the wind turbine, not shown, mounted.
  • the bearing brackets 2 and 3 are on the rotor shaft 5 three sets 7 of pollagenden permanent magnet 7.1 rotationally symmetrical about the Rotorwe!
  • the illustrated in Figure 1 electric generator is designed to form a maximum of three generator modules.
  • three sets 7 polbil ⁇ dender permanent magnets 7.1 are arranged on the rotor shaft 5, which generate three independent exciter magnetic spring.
  • a stator 8 with induction coils.
  • a third stator can be retrofitted if necessary, if the generator is to be upgraded to its maximum capacity.
  • the individual generator modules have the same performance characteristics in order to enable rational production. Same
  • Figure 2 illustrates a likewise designed as êtpolmaschine
  • Synchronous generator for a gearless wind turbine in which three sets are arranged 7 of pollagenden magnet on the rotor shaft 5 as well as in the generator shown in Figure 1, wherein in contrast to the generator shown in Figure 1 only a set of 7 pol sometimesender magnets a stator. 8 is arranged and the pole-forming magnets for generating the field magnetic fields are formed on the one hand in a visible in Figure 2 set as permanent magnets 7.1 and the other in the other visible in Figure 2 set 7 of the polrelienden magnets as magnetic coils 7.2.
  • the solenoids 7.2 are contacted elec ⁇ tric for electrical power to the solenoid coils 7.2, not shown slip rings and brushes.
  • Solenoids 7.2 is that when not arranging a stator 8 to this set pollagender magnets in this no excitation current is fed, so that no exciting magnetic field is generated around the not surrounded with a stator set poling magnets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un générateur électrique pour une éolienne, notamment un générateur à pôles intérieurs pour une éolienne sans engrenage. Selon la conception de l'invention, au moins deux jeux (7) de bobines d'électro-aimants (7.2) et/ou d'aimants permanents (7.1) formant les pôles sont agencés sur l'arbre de rotor (5) du générateur pour générer au moins deux champs magnétiques d'excitation séparés, un stator séparé (8) doté d'enroulements inductifs associés pouvant être agencé pour chaque champ magnétique. De préférence, au moins trois jeux (7) de bobines d'électro-aimants (7.2) et/ou d'aimants permanents (7.1) formant les pôles sont agencés sur l'arbre de rotor (5) du générateur de façon à permettre d'agencer, en fonction de la puissance électrique à installer, un, deux, trois (ou plus) stators séparés (8) dotés d'enroulements inductifs associés. Le générateur selon l'invention comprend ainsi un nombre constant prédéterminé de jeux (7) de bobines d'électro-aimants (7.2) et/ou d'aimants permanents (7.1) formant les pôles et, selon le besoin de puissance, un, deux, trois (ou plus) stators (8), le nombre de stators (8) étant limité au nombre de jeux (7) de bobines d'électro-aimants (7.2) et/ou d'aimants permanents (7.1) formant les pôles. Le générateur selon l'invention est conçu de manière modulaire et peut être utilisé pour des éoliennes de différentes puissances.
PCT/DE2012/000245 2011-03-11 2012-03-06 Générateur électrique pour une éolienne WO2012122965A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110014094 DE102011014094A1 (de) 2011-03-11 2011-03-11 Elektrischer Generator für eine Windkraftanlage
DE102011014094.8 2011-03-11

Publications (2)

Publication Number Publication Date
WO2012122965A2 true WO2012122965A2 (fr) 2012-09-20
WO2012122965A3 WO2012122965A3 (fr) 2014-05-22

Family

ID=46245429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/000245 WO2012122965A2 (fr) 2011-03-11 2012-03-06 Générateur électrique pour une éolienne

Country Status (2)

Country Link
DE (1) DE102011014094A1 (fr)
WO (1) WO2012122965A2 (fr)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9311634D0 (en) * 1993-06-03 1993-07-21 Spooner Edward Electromagnetic machine
DE19652673B4 (de) * 1996-12-18 2004-05-06 Jensen, Marten, Dipl.-Ing. Windkraftanlage
JPH10285890A (ja) * 1997-03-31 1998-10-23 Mitsuhiro Fukada 永久磁石型発電機
WO2003036083A1 (fr) * 2001-10-25 2003-05-01 Nsk Ltd. Generateur d'energie eolienne
US20040075279A1 (en) * 2002-10-18 2004-04-22 Breth Newton Roi Wind powered electric generator
DE10354953A1 (de) * 2003-11-25 2005-06-30 Bosch Rexroth Ag Generator, insbesondere für Windkraftanlagen
JP2005192374A (ja) * 2003-12-26 2005-07-14 Satoru Aritaka 風力発電によって走行する自動車
DE102004018758A1 (de) * 2004-04-16 2005-11-03 Klinger, Friedrich, Prof. Dr.-Ing. Turmkopf einer Windenergieanlage
JP4572647B2 (ja) * 2004-10-01 2010-11-04 株式会社日立製作所 永久磁石式回転電機及び風力発電システム
JP5157138B2 (ja) * 2006-11-24 2013-03-06 株式会社日立製作所 永久磁石式回転電機及び風力発電システム
US8803354B2 (en) * 2006-12-20 2014-08-12 Unimodal Systems Llc Modular electric generator for variable speed turbines
MY153219A (en) * 2007-03-23 2015-01-29 Shinetsu Chemical Co Permanent magnet generator and wind power generator having a multi-stage rotor and stator
JP5052288B2 (ja) * 2007-06-28 2012-10-17 信越化学工業株式会社 アキシャルギャップ型回転機
US7772741B1 (en) * 2007-11-30 2010-08-10 Rittenhouse Norman P Wind turbine generator
DE102009006017A1 (de) * 2009-01-23 2010-08-05 Avantis Ltd. Magnetrad
WO2010097837A1 (fr) * 2009-02-27 2010-09-02 株式会社日立製作所 Générateur à aimants permanents

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
DE102011014094A1 (de) 2012-09-13
WO2012122965A3 (fr) 2014-05-22

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