WO2004040740A1 - Machine a induction a double alimentation comprenant un deuxieme rotor tournant en sens inverse - Google Patents

Machine a induction a double alimentation comprenant un deuxieme rotor tournant en sens inverse Download PDF

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Publication number
WO2004040740A1
WO2004040740A1 PCT/DE2003/003513 DE0303513W WO2004040740A1 WO 2004040740 A1 WO2004040740 A1 WO 2004040740A1 DE 0303513 W DE0303513 W DE 0303513W WO 2004040740 A1 WO2004040740 A1 WO 2004040740A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
generator
shaft
additional
rotor winding
Prior art date
Application number
PCT/DE2003/003513
Other languages
German (de)
English (en)
Inventor
Manfred Herbst
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to AU2003281960A priority Critical patent/AU2003281960A1/en
Publication of WO2004040740A1 publication Critical patent/WO2004040740A1/fr

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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7064—Application in combination with an electrical generator of the alternating current (A.C.) type
    • F05B2220/70644—Application in combination with an electrical generator of the alternating current (A.C.) type of the asynchronous type, i.e. induction type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/42—Asynchronous induction generators
    • 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
    • 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 three-phase asynchronous generator with a housing and a main shaft mounted in the housing, to which a drive element can be coupled from outside the housing.
  • the other system used is the geared double powered asynchronous generator with low number of poles.
  • a gear is arranged between the propeller and the main shaft, which translates the low wing speed of the propeller to the working speed of the generator.
  • the gearbox must be designed for the nominal power of the generator and have a gear ratio between 1:50 and 1: 100. Another disadvantage of this solution is the lack of ability of this generator to drive a short circuit current.
  • the propeller speed should be low (typically 15 to 20 revolutions per minute).
  • the generator should have a high speed in order to enable a compact, weight-saving and cost-saving generator construction.
  • the wind turbine should be easy to operate in a range of around 30% around the nominal speed in order to also be able to use the energy of gusts, to operate the propeller at the efficiency-optimized speed and to achieve large, gust-related fluctuations in power when feeding into the grid to be able to avoid.
  • the object of the present invention is to provide a three-phase asynchronous generator of the type mentioned at the outset which avoids the essential disadvantages of the conventional designs and is nevertheless simple and inexpensive to produce.
  • the main shaft is connected via a gearbox to an additional shaft arranged concentrically to the main shaft, so that the speeds of the main shaft and the additional shaft are in a fixed relationship to one another, a stator winding is arranged in the housing, a main rotor winding on the main shaft and an additional rotor winding on the additional shaft,
  • - Stator terminals connected to the stator winding are arranged on the housing, via which the generator current can be tapped and fed into a supply network.
  • the gearbox no longer has to be designed for the nominal power of the generator, but only for the excitation power fed into the additional rotor winding. However, this power is considerably lower than the nominal power of the generator.
  • the construction of the three-phase asynchronous generator is particularly simple.
  • the transmission is designed as a planetary transmission, the transmission can be implemented in a particularly compact manner.
  • the ratio of the speed of the additional shaft to the speed of the main shaft is at least 10, in particular between 20 and 30, there is a high speed of the additional shaft despite the low speed of the main shaft.
  • stator winding is arranged radially on the outside and the additional rotor winding is arranged radially on the inside and the main rotor winding is arranged radially between the stator winding and the additional rotor winding, the construction of the generator is particularly favorable in terms of design.
  • the interacting coupling devices can alternatively be designed as slip rings and brushes or as inductive coupling elements.
  • a control is assigned to the generator, by means of which the excitation current can be regulated in such a way that the generator current has a fixed frequency, operation at variable speed of the main shaft can also be implemented in a simple manner.
  • the generator according to the invention is preferably in a
  • Wind turbine used In particular in hydropower plants, are also conceivable.
  • FIG. 1 schematically shows a wind power plant
  • FIG. 2 shows a section along the line II-II of FIG. 1
  • FIG. 3 shows a section along the line III-III of FIG. 1
  • FIG. 4 shows a slightly different representation of the wind power plant from FIG. 1 and FIG. 5 shows an alternative detailed design.
  • a three-phase asynchronous generator 1 has a housing 2.
  • a main shaft 3 is mounted in the housing 2.
  • the storage of the main shaft 3 takes place at both ends of the Housing 2.
  • a drive element 4 can be coupled to the main shaft 3 from outside the housing 2.
  • the drive element 4 is designed in the present case as a propeller 4, which is driven by wind 5.
  • the generator 1 is thus used in a wind turbine in the present case.
  • a brake is not shown in FIG. 1, by means of which the drive element 4 can be locked.
  • Such a brake can be arranged between the drive element 4 and the housing 2, possibly on a separate connecting element between the drive element 4 and the main shaft 3.
  • the main shaft 3 is connected to an additional shaft 7 via a gear 6.
  • the additional shaft 7 is arranged concentrically to the main shaft 3.
  • the additional shaft 7 is supported in the present case in a bearing ring of the housing 2 and in the main shaft 3. In principle, however, both bearings of the additional shaft 7 could also be arranged in the main shaft 3.
  • the gear 6 is evidently arranged within the housing 2 and designed as a planetary gear 6. It therefore has a ring gear 8, a sun gear 9 and a plurality of planet gears 10.
  • the ring gear 8 is arranged in a rotationally fixed manner on the main shaft 3.
  • the sun gear 9 is rotatably arranged on the additional shaft 7.
  • the planet gears 10 are rotatably connected to the housing 2.
  • the speeds nH, nZ of the main shaft 3 and the additional shaft 7 are in a fixed relationship to one another.
  • the ratio of the speeds nH, nZ is preferably between 20 and 30. At least it should be 10.
  • the additional shaft 7 thus rotates considerably faster than the main shaft 3. Because of the design of the gear 6, the rotary movements of the main shaft 3 and the additional shaft are 7 further opposite to each other. This is indicated in FIG 2 by corresponding arrows A, B.
  • a stator winding 11 is arranged in the housing.
  • a main rotor winding 12 is arranged on the main shaft 3.
  • An additional rotor winding 13 is arranged on the additional shaft 7.
  • the stator winding 11 is evidently arranged radially on the outside, the additional rotor winding 13 is arranged radially on the inside.
  • the main rotor winding 12 is arranged radially between the stator winding 11 and the additional rotor winding 13.
  • the windings 11 to 13 are three-phase windings. Their number of poles is preferably 4 or 6, maximum 8.
  • rotor clamps 14 are arranged on the housing.
  • Coupling devices 15 are also arranged on the housing 2.
  • the coupling devices 15 are designed according to FIG. 4 as brushes 15. They interact with coupling devices 16, which are designed as slip rings 16 and are arranged on the additional shaft 7.
  • An excitation current IE can thus be fed into the additional rotor winding 13 via the rotor terminals 14 and the coupling devices 15, 16.
  • the excitation current IE fed into the additional rotor winding 13 induces an intermediate current IZ in the main rotor winding 12.
  • the intermediate current IZ in turn induces a generator current IG in the stator winding 11.
  • the generator current IG can be tapped via stator terminals 17 which are arranged on the housing 2 and are connected to the stator winding 11 and can be fed into a supply network 18.
  • the supply network 18 has a network frequency f.
  • the generator current IG has a generator frequency f.
  • the generator frequency f In order to properly feed the generator current IG into the supply network 18, the generator frequency f must be identical to the network frequency f.
  • a controller 19 is therefore assigned to the generator 1.
  • the control system 19 is supplied with the mains frequency f and the generator frequency f.
  • the controller 19 then controls a converter 20 such that the frequency frequency f of the generator current IG corresponds to the network frequency f.
  • the controller 19 thus regulates the excitation current IE in such a way that the generator frequency f of the generator current IG matches the mains frequency f. Only when this is the case does the controller 19 close a switch 21 and thus couple the stator terminals 17 to the supply network 18.
  • the controller 19 therefore also regulates the excitation current IE in such a way that the generator current IG has a fixed frequency, namely the network frequency f, having.
  • FIG. 5 shows a detail modification of the coupling devices of FIG. 4.
  • the interacting coupling devices 15, 16 are not brushes 15 and
  • Slip rings 16, but designed as inductive coupling elements 15, 16. 5 corresponds to that of FIG. 4.
  • the generator 1 according to the invention must be designed such that it is operated under-synchronously even at maximum (mechanical) speed nH of the main shaft 3 and a small control difference remains.

Landscapes

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

Abstract

L'invention concerne un générateur asynchrone à courant triphasé (1) qui comprend un carter (2) dans lequel est logé un arbre principal (3) auquel un élément d'entraînement (4) peut être accouplé de l'extérieur du carter (2). L'arbre principal (3) est relié par un engrenage (6) à un arbre secondaire (7) placé concentriquement à l'arbre principal (3), de sorte que les vitesses de rotation (nH, nZ) des arbres (3, 7) ont un rapport fixe entre elles. Un enroulement de stator (11) est placé dans le carter (2), un enroulement de rotor principal (12) est placé sur l'arbre principal (3) et un enroulement de rotor secondaire (13) est placé sur l'arbre secondaire (7). On peut alimenter l'enroulement de rotor secondaire (13) avec un courant d'excitation (IE) qui induit dans l'enroulement de rotor principal (12) un courant intermédiaire (IZ) qui induit, à son tour, un courant de générateur (IG) dans l'enroulement de stator (11). Le courant de générateur (IG) peut être prélevé et injecté dans un réseau d'alimentation (18).
PCT/DE2003/003513 2002-10-29 2003-10-22 Machine a induction a double alimentation comprenant un deuxieme rotor tournant en sens inverse WO2004040740A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003281960A AU2003281960A1 (en) 2002-10-29 2003-10-22 Dual-supply induction machine comprising a second counter-rotating rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10250382A DE10250382A1 (de) 2002-10-29 2002-10-29 Drehstrom-Asynchrongenerator
DE10250382.6 2002-10-29

Publications (1)

Publication Number Publication Date
WO2004040740A1 true WO2004040740A1 (fr) 2004-05-13

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ID=32114929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/003513 WO2004040740A1 (fr) 2002-10-29 2003-10-22 Machine a induction a double alimentation comprenant un deuxieme rotor tournant en sens inverse

Country Status (3)

Country Link
AU (1) AU2003281960A1 (fr)
DE (1) DE10250382A1 (fr)
WO (1) WO2004040740A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7154193B2 (en) * 2004-09-27 2006-12-26 General Electric Company Electrical machine with double-sided stator
US7154191B2 (en) * 2004-06-30 2006-12-26 General Electric Company Electrical machine with double-sided rotor
EP1806827A1 (fr) * 2005-12-02 2007-07-11 HONDA MOTOR CO., Ltd. Moteur électrique et son procédé d'entraînement
EP2161821A1 (fr) * 2008-09-03 2010-03-10 General Electric Company Générateur à commande magnétique
WO2010081560A1 (fr) * 2009-01-14 2010-07-22 Amsc Windtec Gmbh Générateur, nacelle et procédé de montage d'une nacelle d'un convertisseur d'énergie éolienne
NO20092319L (no) * 2009-06-16 2010-12-17 Odd Jahr Vindkraftverk med to energiproduserende enheter
KR101012695B1 (ko) 2008-11-17 2011-02-09 정창록 유체기계용 반전회전장치
US7944077B2 (en) 2009-01-14 2011-05-17 Amsc Windtec Gmbh Generator, nacelle, and mounting method of a nacelle of a wind energy converter
WO2011145762A1 (fr) * 2010-05-20 2011-11-24 (주)이지펙스 Dispositif contrarotatif pour machines à fluide
CN102269132A (zh) * 2011-06-23 2011-12-07 国电联合动力技术有限公司 一种电无级变速大型同步风力发电机组
US8393993B2 (en) 2006-01-25 2013-03-12 Vestas Wing Systems A/S Wind turbine comprising at least one gearbox and an epicyclic gearbox
DE102011121009A1 (de) * 2011-12-13 2013-06-13 Theresia Heil - Ostovic Doppelterregte Asynchronmaschine für Windenergieanlagen
US8536726B2 (en) 2010-09-17 2013-09-17 Vestas Wind Systems A/S Electrical machines, wind turbines, and methods for operating an electrical machine
US8568099B2 (en) 2010-12-17 2013-10-29 Vestas Wind Systems A/S Apparatus for harvesting energy from a gearbox to power an electrical device and related methods
JP2015126696A (ja) * 2013-12-26 2015-07-06 志鴻 魏 流体発電装置
US9184649B2 (en) 2011-06-23 2015-11-10 Rolls-Royce Plc Electrical machine with contra-rotating rotors
WO2018127083A1 (fr) * 2017-01-06 2018-07-12 邱金和 Ensemble générateur électrique composite

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7629705B2 (en) 2006-10-20 2009-12-08 General Electric Company Method and apparatus for operating electrical machines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703659A1 (fr) * 1993-04-27 1996-03-27 LAW, Mingyuen Dispositif electrodynamique a courant alternatif comprenant plusieurs rotors
EP1133045A1 (fr) * 1998-11-20 2001-09-12 Hitachi, Ltd. Moteur a induction a rotor bobine et installation de conversion d'energie pour machine electrique tournante a vitesse variable
DE20113760U1 (de) * 2001-09-03 2002-01-31 Schmoll, Robert, 78224 Singen Doppelläufer-2Hz. Elektrogenerator
US6401849B1 (en) * 1995-12-15 2002-06-11 Denso Corporation Driving apparatus for a vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703659A1 (fr) * 1993-04-27 1996-03-27 LAW, Mingyuen Dispositif electrodynamique a courant alternatif comprenant plusieurs rotors
US6401849B1 (en) * 1995-12-15 2002-06-11 Denso Corporation Driving apparatus for a vehicle
EP1133045A1 (fr) * 1998-11-20 2001-09-12 Hitachi, Ltd. Moteur a induction a rotor bobine et installation de conversion d'energie pour machine electrique tournante a vitesse variable
DE20113760U1 (de) * 2001-09-03 2002-01-31 Schmoll, Robert, 78224 Singen Doppelläufer-2Hz. Elektrogenerator

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7154191B2 (en) * 2004-06-30 2006-12-26 General Electric Company Electrical machine with double-sided rotor
US7154193B2 (en) * 2004-09-27 2006-12-26 General Electric Company Electrical machine with double-sided stator
EP1806827A1 (fr) * 2005-12-02 2007-07-11 HONDA MOTOR CO., Ltd. Moteur électrique et son procédé d'entraînement
US7626298B2 (en) 2005-12-02 2009-12-01 Honda Motor Co., Ltd. Electric motor and method of driving the same
US8393993B2 (en) 2006-01-25 2013-03-12 Vestas Wing Systems A/S Wind turbine comprising at least one gearbox and an epicyclic gearbox
US8299641B2 (en) 2008-09-03 2012-10-30 General Electric Company Magnetically geared generator
EP2161821A1 (fr) * 2008-09-03 2010-03-10 General Electric Company Générateur à commande magnétique
KR101012695B1 (ko) 2008-11-17 2011-02-09 정창록 유체기계용 반전회전장치
WO2010081560A1 (fr) * 2009-01-14 2010-07-22 Amsc Windtec Gmbh Générateur, nacelle et procédé de montage d'une nacelle d'un convertisseur d'énergie éolienne
US7944077B2 (en) 2009-01-14 2011-05-17 Amsc Windtec Gmbh Generator, nacelle, and mounting method of a nacelle of a wind energy converter
KR101376326B1 (ko) 2009-01-14 2014-03-20 에이엠에스씨 윈텍 게엠베하 풍력 에너지 변환기의 나셀
NO20092319L (no) * 2009-06-16 2010-12-17 Odd Jahr Vindkraftverk med to energiproduserende enheter
WO2011145762A1 (fr) * 2010-05-20 2011-11-24 (주)이지펙스 Dispositif contrarotatif pour machines à fluide
US8536726B2 (en) 2010-09-17 2013-09-17 Vestas Wind Systems A/S Electrical machines, wind turbines, and methods for operating an electrical machine
US8568099B2 (en) 2010-12-17 2013-10-29 Vestas Wind Systems A/S Apparatus for harvesting energy from a gearbox to power an electrical device and related methods
CN102269132A (zh) * 2011-06-23 2011-12-07 国电联合动力技术有限公司 一种电无级变速大型同步风力发电机组
US9184649B2 (en) 2011-06-23 2015-11-10 Rolls-Royce Plc Electrical machine with contra-rotating rotors
EP2538529A3 (fr) * 2011-06-23 2016-02-24 Rolls-Royce plc Machine électrique à rotors de rotation inverse
DE102011121009A1 (de) * 2011-12-13 2013-06-13 Theresia Heil - Ostovic Doppelterregte Asynchronmaschine für Windenergieanlagen
JP2015126696A (ja) * 2013-12-26 2015-07-06 志鴻 魏 流体発電装置
WO2018127083A1 (fr) * 2017-01-06 2018-07-12 邱金和 Ensemble générateur électrique composite

Also Published As

Publication number Publication date
AU2003281960A1 (en) 2004-05-25
DE10250382A1 (de) 2004-05-19

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