EP2514076A1 - Ensemble génératrice pour une éolienne - Google Patents

Ensemble génératrice pour une éolienne

Info

Publication number
EP2514076A1
EP2514076A1 EP10795225A EP10795225A EP2514076A1 EP 2514076 A1 EP2514076 A1 EP 2514076A1 EP 10795225 A EP10795225 A EP 10795225A EP 10795225 A EP10795225 A EP 10795225A EP 2514076 A1 EP2514076 A1 EP 2514076A1
Authority
EP
European Patent Office
Prior art keywords
generator
assembly
gear
arrangement according
base support
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10795225A
Other languages
German (de)
English (en)
Inventor
Anton Paweletz
Heinz-Josef Tenberge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2514076A1 publication Critical patent/EP2514076A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
    • 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
    • F03D15/00—Transmission of mechanical power
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
    • 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
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • 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
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • 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

Definitions

  • the present invention relates to a generator arrangement for a wind energy plant.
  • a large part of the known wind turbines or wind turbines is equipped with fast-rotating generators, one or multi-stage gearboxes being used to translate the relatively slow rotational speed of the wind turbine to the generator speed.
  • Solutions are known in which gear and generator are arranged one behind the other as separate assemblies on a machine carrier. This allows easy replacement of the components in the event of damage, but the overall arrangement is relatively large and heavy, which causes problems with regard to the transport into the nacelle of the wind turbine and the arrangement therein.
  • a disadvantage of these solutions is the complex mutual storage of the individual gear and generator elements.
  • two bearings are usually provided for each gear degree of freedom, ie the number of possible independent movements.
  • the sun gear and the ring gear are each mounted on the planet carrier twice, so that the gear arrangement comprises a total of four bearings.
  • the tolerances to be complied with in the production are therefore low, since in the mounted state, a plurality of components moves relative to each other, which quickly leads to wear when too much play. It is therefore desirable to provide a generator assembly with gearbox for a wind turbine, which is compact, manages with as few bearings and requires a lower production cost.
  • the invention is based essentially on the idea to provide a base support member which carries all bearings of the generator assembly and the transmission.
  • a base support member which carries all bearings of the generator assembly and the transmission.
  • Such a construction has the advantage that all centering surfaces, such as e.g. Stand package against stator housing, as well as all bearing seats refer to a common reference, eg. The base axis of the stand. It is particularly advantageous that all centering and bearing surfaces can be processed in the manufacture in one setting. As a result, the components can be arranged more accurately, so that air gaps, in particular between the stator and rotor run smaller and thus the generator power density is increased.
  • the generator arrangement with helical gear can be assembled and disassembled more easily, since the reference to a common reference in particular allows the use of simple mounting methods, such as a spline.
  • the rotor and / or the gear can be connected to the shaft by means of a, in particular toothed, connector.
  • the gear can be part of the shaft.
  • the shaft can be toothed at one end and engage in another gear of the spur gear.
  • the generator and transmission may be formed as a common assembly, preferably using the space within the rotor to accommodate at least a portion of the transmission, which shortens the power flow paths. As a result, they can build smaller and be produced with less material. At the same time creates the ability to make the generator assembly with gear from better manageable assemblies, without affecting tolerances of the storage systems negative.
  • a spur gear instead of a complex planetary gear can be used easily.
  • the base support member is pot-shaped with a bottom surface and a wall surface, wherein the stator of the generator is arranged on the wall surface.
  • the spur gear arrangement is a second gear arrangement, in particular a two-stage gear, connected upstream.
  • a second gear arrangement in particular a two-stage gear, connected upstream.
  • the second gear arrangement and the spur gear arrangement are expediently connected by means of at least one elastic element.
  • the gear arrangements can be provided independently of one another and must be connected to one another only at the place of use.
  • the elastic elements serve to absorb torque shocks.
  • FIG. 1 shows a cross-sectional view of a first preferred embodiment of a generator arrangement according to the invention.
  • FIG. 2 shows an exploded view of the embodiment according to FIG. 1.
  • FIG. 3 shows a cross-sectional view of a second preferred embodiment of a generator arrangement according to the invention.
  • FIGS. 1 and 2 depict different embodiments of a generator arrangement according to the invention, which will however be described below as being comprehensive in that they contain identical or identically acting elements. These are provided with the same reference numerals.
  • FIGS. 1 and 2 a first preferred embodiment of a generator arrangement according to the invention is shown schematically in cross-section and indicated overall by 100.
  • the generator arrangement 100 comprises a doubly-fed asynchronous generator 110 with a stator 1 1 1 comprising a coil arrangement and a rotor 112 comprising a coil arrangement, the winding heads of which are shown to the right and left next to it.
  • the rotor 1 12 is rotatably mounted about a rotation axis A.
  • the generator arrangement has a base support component 160, which also acts as a housing part, which in the present example is cup-shaped with a bottom surface 161 and a wall surface 162.
  • the stand 1 1 1 is attached to the inside of the wall surface 162.
  • the base support member 160 further includes a central recess 163 in which a shaft 140 is mounted.
  • the rotor 1 12 is attached to a rotor carrier 170, which by means of a toothed connector 175 rotatably connected to the shaft 140.
  • the shaft 140 is rotatably mounted about the rotation axis A by means of bearings which are designed as ball bearings 151 and 152 relative to the base support component 160.
  • the generator assembly 100 further includes a spur gear assembly 130, which is also mounted on the base support member 160 and together with the asynchronous generator 110 is part of the generator assembly.
  • the spur gear assembly 130 includes a first gear 131 and a second gear 132 configured as part of the shaft 140.
  • the gear 131 is rotatably supported relative to the base support member 160 about a rotational axis B by means of ball bearings 153 and 154 formed here, which in the example shown coincides with the rotational axis of the drive shaft 121.
  • the generator assembly 100 is shown connected to a two-stage gearbox 120 which is connected to a drive shaft 121 connected to, for example, a windmill or rotor (not shown).
  • the Vorschaltgetriebe 120 has in the present example, two planetary gear stages and is connected via a toothed connector 122 to the gear assembly 100, more precisely to the gear 131 of the spur gear assembly 130.
  • the primary gear 120 is attached to the generator assembly 100 by means of elastic members 123.
  • a feed line 180 extends to a number of slip rings 191, which are fastened to a Welleneinsteckteil 190.
  • the slip rings 191 cooperate with corresponding brushes 192 which are connected to a generator ring 193.
  • the generator terminal 193 is connected via a further feed line 181 to the winding arrangement of the stator 11 1.
  • a cover 200 is provided, which forms a housing for the generator 110 together with the base support member 160.
  • the illustrated in a schematic cross-sectional view in Figure 3 alternative embodiment 100 'differs from the embodiment 100 essentially only by the configuration of the shaft 1 0' and the rotor support 170 '.
  • the embodiment according to FIG. 3 makes it possible for the shaft 140 'to be able to be removed from the recess 163 to the front and to the rear (ie to the left and to the right in the figure), which makes possible a simpler installation and maintenance of the generator arrangement 100'.
  • a permanent-magnet synchronous generator can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un ensemble génératrice pour une éolienne, comportant un stator annulaire, un rotor annulaire ainsi qu'un ensemble réducteur à engrenages droits, l'ensemble génératrice présentant un élément support de base sur lequel sont disposés tous les paliers de l'ensemble génératrice.
EP10795225A 2009-12-19 2010-12-09 Ensemble génératrice pour une éolienne Withdrawn EP2514076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009059671A DE102009059671A1 (de) 2009-12-19 2009-12-19 Generatoranordnung für eine Windenergieanlage
PCT/EP2010/007496 WO2011072819A1 (fr) 2009-12-19 2010-12-09 Ensemble génératrice pour une éolienne

Publications (1)

Publication Number Publication Date
EP2514076A1 true EP2514076A1 (fr) 2012-10-24

Family

ID=43770499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10795225A Withdrawn EP2514076A1 (fr) 2009-12-19 2010-12-09 Ensemble génératrice pour une éolienne

Country Status (5)

Country Link
US (1) US20130001952A1 (fr)
EP (1) EP2514076A1 (fr)
CN (1) CN102754314A (fr)
DE (1) DE102009059671A1 (fr)
WO (1) WO2011072819A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120257A1 (it) 2012-02-21 2013-08-22 Wilic Sarl Macchina elettrica rotante per aerogeneratore
CN107709147B (zh) * 2015-06-19 2020-03-06 罗伯特·博世有限公司 电动车辆以及用于电动车辆的驱动系统
WO2018024761A1 (fr) 2016-08-04 2018-02-08 Siemens Aktiengesellschaft Transmission d'éolienne
WO2023202821A1 (fr) * 2022-04-22 2023-10-26 Siemens Gamesa Renewable Energy Innovation & Technology S.L. Boîte de vitesses pour une éolienne

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746991A (en) * 1928-09-20 1930-02-11 Herbert E Bucklen Corp Electric windmill
DE895129C (de) * 1944-04-07 1953-10-29 Ulrich Dr-Ing Huetter Windkraftanlage zur Erzeugung von elektrischem Strom
US4427897A (en) * 1982-01-18 1984-01-24 John Midyette, III Fixed pitch wind turbine system utilizing aerodynamic stall
DE19608267C1 (de) * 1996-03-05 1997-03-06 Skf Textilmasch Komponenten Antriebs- und Lagervorrichtung für Spinnrotoren von Offenend-Spinnmaschinen
DE10242707B3 (de) 2002-09-13 2004-04-15 Aerodyn Engineering Gmbh Windenergieanlge mit konzentrischer Getriebe/Generator-Anordnung
DE10242703A1 (de) 2002-09-17 2004-03-18 Grenzebach Maschinenbau Gmbh Vorrichtung zum Ausschneiden und Kantenschleifen von konturierten Glasscheiben
JP4125149B2 (ja) * 2003-02-04 2008-07-30 株式会社 神崎高級工機製作所 風力発電装置
DE102004005543A1 (de) 2004-02-04 2005-09-01 Siemens Ag Windkraftanlage
DE102004046563B4 (de) * 2004-09-24 2008-01-03 Aerodyn Energiesysteme Gmbh Windenergieanlage mit vollintegriertem Maschinensatz
DE102006027543A1 (de) * 2006-06-14 2007-12-20 Nordex Energy Gmbh Windenergieanlage mit einem Rotor

Also Published As

Publication number Publication date
US20130001952A1 (en) 2013-01-03
CN102754314A (zh) 2012-10-24
DE102009059671A1 (de) 2011-06-22
WO2011072819A1 (fr) 2011-06-23

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