EP2567448A2 - Machine électrique rotative - Google Patents

Machine électrique rotative

Info

Publication number
EP2567448A2
EP2567448A2 EP11718358A EP11718358A EP2567448A2 EP 2567448 A2 EP2567448 A2 EP 2567448A2 EP 11718358 A EP11718358 A EP 11718358A EP 11718358 A EP11718358 A EP 11718358A EP 2567448 A2 EP2567448 A2 EP 2567448A2
Authority
EP
European Patent Office
Prior art keywords
stator
winding
rotary electric
electric machine
damper
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Withdrawn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
EP11718358A
Other languages
German (de)
English (en)
Inventor
Thomas Kunz
Jean-Jacques Simond
Xuan Mai Tu
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.)
GE Renewable Technologies Wind BV
Original Assignee
Alstom Hydro France SAS
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 Alstom Hydro France SAS filed Critical Alstom Hydro France SAS
Publication of EP2567448A2 publication Critical patent/EP2567448A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating

Definitions

  • the present invention relates to the field of rotary electric machines. It relates to such a machine according to the preamble of claim 1.
  • rotary electric machine 26 of FIG. 1 includes one around one
  • Machine axis 18 rotatable rotor 19 which is concentrically surrounded by a stator 10.
  • a stator winding 13 is housed.
  • the These machines are characterized by a distributed three-phase winding on the stator.
  • FIG. 2 shows in a section a cross-section through a stator 20 according to the prior art, which has a stator winding 23.
  • the stator winding 23 consists of individual rods, which in the example of FIG. 2 form a lower layer 23 a and an upper layer 23 b, which are separated from one another by an intermediate layer 24.
  • the lower and upper layers 23a, b are embedded in grooves 21 in the laminated stator core 21.
  • the grooves 22 are each closed by a slot wedge 25 to the air gap.
  • the individual rods are connected to form a winding.
  • WO 2005/053135 A1 discloses a rotating electrical machine with a rotor and a stator, in which a second set of coils is accommodated in the stator, which forms individual closed circuits in such a way that that upon the occurrence of an imbalance in magnetic flux up
  • the invention is based on a rotating electrical machine, which comprises a rotor rotatably mounted about a machine axis, which is concentrically surrounded by a stator which has a stator winding which is embedded in grooves of a laminated stator core. It is characterized in that an open stator damper winding is provided for the reduction of asymmetrical magnetic forces in the stator.
  • An embodiment of the inventive machine is characterized in that the stator damper winding is installed in the same grooves as the stator winding.
  • stator damper winding is designed as a multi-phase winding with parallel circuits.
  • stator damper winding is designed as a distributed single-layer winding.
  • stator damper winding as distributed
  • Two-layer winding is formed.
  • Stator attenuator winding the same number of poles as the stator winding.
  • the machine is a slow-running synchronous machine, and that the stator winding is a distributed three-phase winding.
  • FIG. 1 shows the greatly simplified construction of a rotating electrical machine on which the invention is based
  • Stator damper winding provided stator winding according to an embodiment of the invention. WAYS FOR CARRYING OUT THE INVENTION
  • Stator bars Such an embodiment is shown in Fig. 3 in cross section.
  • the stator 10 has in the stator laminated core 1 1 grooves 12, which are closed towards the air gap with a slot wedge 17.
  • a stator winding 13 with a lower layer 13a and an upper layer 13b separated from the lower layer 13a by an intermediate layer 14 and an additional stator damper winding 15 are accommodated with a lower layer 15a and upper layer 15b likewise separated by an intermediate layer 16.
  • Such a stator damper winding 15 has the advantage that a smaller
  • the mapped stator damper winding 15 is a multi-phase, distributed
  • Stator winding 13 instead of the two-layer winding but can also be a
  • Single-layer winding can be provided.
  • the difference of this solution to the solution of the cited document is the following:
  • the document proposes as a countermeasure to introduce individual shorted turns in the stator.
  • the present invention uses an open, distributed, multiphase

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne une machine électrique rotative (26) comprenant un rotor (19) monté de manière à pouvoir tourner autour d'un axe de machine (18) et entouré concentriquement par un stator (10) qui présente un enroulement de stator (13) inséré dans des rainures (12) d'un noyau feuilleté de stator (11). Un amortissement efficace est obtenu au moyen d'un enroulement amortisseur de stator (15) ouvert, servant à réduire les forces magnétiques non symétriques dans le stator (10).
EP11718358A 2010-05-06 2011-05-04 Machine électrique rotative Withdrawn EP2567448A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010019807 2010-05-06
PCT/EP2011/057156 WO2011138377A2 (fr) 2010-05-06 2011-05-04 Machine électrique rotative

Publications (1)

Publication Number Publication Date
EP2567448A2 true EP2567448A2 (fr) 2013-03-13

Family

ID=44626225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11718358A Withdrawn EP2567448A2 (fr) 2010-05-06 2011-05-04 Machine électrique rotative

Country Status (2)

Country Link
EP (1) EP2567448A2 (fr)
WO (1) WO2011138377A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2924850B1 (fr) * 2014-03-28 2021-05-19 Goodrich Actuation Systems SAS Moteur doté de moyens d'amortissement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484261A (en) * 1948-02-13 1949-10-11 Westinghouse Electric Corp Neutralizing winding for dynamoelectric machines
JP3041884B2 (ja) * 1990-05-17 2000-05-15 株式会社デンソー 車両用交流発電機
DE60037236T2 (de) * 1999-12-14 2008-10-02 Mitsubishi Denki K.K. Wechselstromgenerator und dessen Herstellungsverfahren
GB2408390A (en) * 2003-11-19 2005-05-25 Boc Group Plc Additional short circuited dem windings to compensate unbalanced magnetic pull (UMP) effects

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2011138377A2 *

Also Published As

Publication number Publication date
WO2011138377A3 (fr) 2012-12-27
WO2011138377A2 (fr) 2011-11-10

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