EP2567448A2 - Machine électrique rotative - Google Patents
Machine électrique rotativeInfo
- 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- Withdrawn
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).
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)
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)
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 |
EP1109293B1 (fr) * | 1999-12-14 | 2007-11-28 | Mitsubishi Denki Kabushiki Kaisha | Alternateur et sa méthode de fabrication |
GB2408390A (en) * | 2003-11-19 | 2005-05-25 | Boc Group Plc | Additional short circuited dem windings to compensate unbalanced magnetic pull (UMP) effects |
-
2011
- 2011-05-04 EP EP11718358A patent/EP2567448A2/fr not_active Withdrawn
- 2011-05-04 WO PCT/EP2011/057156 patent/WO2011138377A2/fr active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2011138377A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011138377A2 (fr) | 2011-11-10 |
WO2011138377A3 (fr) | 2012-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20121123 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALSTOM RENEWABLE TECHNOLOGIES |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170125 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170607 |