EP3042437A2 - Enroulement de stator d'une machine électrique rotative - Google Patents

Enroulement de stator d'une machine électrique rotative

Info

Publication number
EP3042437A2
EP3042437A2 EP14757897.5A EP14757897A EP3042437A2 EP 3042437 A2 EP3042437 A2 EP 3042437A2 EP 14757897 A EP14757897 A EP 14757897A EP 3042437 A2 EP3042437 A2 EP 3042437A2
Authority
EP
European Patent Office
Prior art keywords
phase
slots
slot
connecting bars
connecting bar
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Withdrawn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
EP14757897.5A
Other languages
German (de)
English (en)
Inventor
Johann Haldemann
Christophe Gombert
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 Vernova GmbH
Original Assignee
Alstom Technology AG
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 Technology AG filed Critical Alstom Technology AG
Priority to EP14757897.5A priority Critical patent/EP3042437A2/fr
Publication of EP3042437A2 publication Critical patent/EP3042437A2/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Withdrawn legal-status Critical Current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
    • H02K3/28—Layout of windings or of connections between windings

Definitions

  • the present invention concerns a stator winding of a rotating electrical machine including a rotor and a stator, which has slots on his peripheral area facing the rotor.
  • the stator winding comprises three phases and is formed in two layers for each slot. One layer corresponds to a part of the stator winding disposed into the bottom of each slot and the other to another part of the stator winding disposed into the top of each slot.
  • Such a stator winding includes a phase winding for each phase.
  • the number of slots is important for setting a voltage in a stator winding. It is known that, when the number of poles is high for an integer number of slots per pole and phase stator, the number of necessary slots is high, which induces a lack of flexibility in the stator design. In order to overcome this issue, it is known to design a stator with a fractional number of slots per pole and phase.
  • the present invention considers rotating electrical machines having this kind of stator design and, more precisely, 4.5 slots per pole and phase.
  • a magnetic flux generates an electromagnetic force to attract the stator core towards the rotor and this electromagnetic force generates circular vibrations when the rotor rotates.
  • the magnetic flux density B generated by the stator winding is proportional to the stator winding current. The magnetic flux density is expressed as follows:
  • an electromagnetic force is generated by the magnetic flux and becomes an excitation force having a frequency double the electrical frequency.
  • FIG 5 schematically shows a stator 12, and more precisely one phase winding 22 of a stator winding 20 represented on figure 6 of a conventional rotating electrical machine having 4.5 slots 18 per pole and phase.
  • the stator winding 20 includes three phase windings 22, 24, 26 on two layers 28, 30 represented on figure 6.
  • twenty seven slots 18 are represented, namely slots with order numbers 18i to 18 27 , with 18 1 corresponding to the first slot.
  • So slots 18i is also called "slot number i" with i the index of the order number of the slot.
  • a rotating electrical machine having 4.5 slots per pole and per phase can be obtained, for example, with the configuration of fifty four slots with four poles or twenty seven slots with two poles.
  • the windings arrangements presented on figure 6 in slots numbers 18 1 to 18 27 can be repeated on slots 18 2 e to 18 54 in the same order to obtain the winding with fifty four slots.
  • Phase winding 22 forms two different types of phase belts 32, 34, namely 5-coil turn phase belt 32 and 4-coil turn phase belt 34, which are alternatively arranged in a circumferential direction of stator 12.
  • Each phase belt 32, 34 comprises coil turns 36, and each coil turn 36 includes two connecting bars 42, 44.
  • a first connecting bar 42 belongs to a first layer 28 and a second connecting bar 44 belongs to a second layer 30.
  • First connecting bar 42 and second connecting bar 44 are separated for each coil turn 36 by a predetermined pitch P, corresponding to a number of slots 18. On the example shown on Figure 5, the pitch is set to eleven slots.
  • each coil turn 36 of the first winding 22 includes a first connecting bar 42 and a second connecting bar 44 for which the angular shift is equal to 0° or 180°.
  • coils turns 36 of second 24 and third 26 phase windings with angular shift of respectively 60° or 240°, for the second phase winding 24, and of 120° or 300°, for the third phase winding 26.
  • each phase winding 22, 24, 26 could be switched on figure 8.
  • the position of phase winding 24 and phase winding 26 could be switched.
  • phase winding 26 all first connecting bars 42 of one phase belt 32 are disposed in adjacent slots 18, namely slots number 18 3 to 18 7 .
  • all second connecting bars 44 of phase belt 32 are disposed in adjacent slots 18i 4 to 18i 8 .
  • first 42 and second 44 connecting bars of phase belt 34 are respectively disposed in adjacent slots 18 17 to 18 20 and 18-i to 18 4 .
  • a similar arrangement is used for phase windings 22 and 24.
  • Phase belts 32, 34 are disposed in slots 18 with a double alternation. More precisely, phase belts 32, 34 of phase windings 22, 24, 26 alternate with an alternation of 5-coil turn phase belt 32 and 4-coil turn phase belt 34.
  • an electromagnetic excitation force F acting on a stator core is expressed as follows:
  • a 2.p component appears as a lowest order electromagnetic excitation force and corresponds to the term: B r B 2 .cos(p.6> + 2.&>.t) .
  • 2.p component corresponds to a 2.p node excitation vibration mode, which has a negative influence on the functioning of the machine. Indeed, for a 4-pole machine the 2.p node excitation mode corresponds to a 4-node excitation vibration mode and, for a 2-pole, machine it corresponds to a 2-node excitation vibration mode. These two excitation vibration modes create excessive stator core vibrations.
  • the electromagnetic force F includes more harmonics than with an integer number of slots per pole and phase, but they have often lower amplitudes.
  • EP-A-2 503 673 it is known from EP-A-2 503 673 to use a 3-phase 4-pole 2-layer stator winding of rotating electrical machine having fifty-four slots, allowing the reduction of the 2.p node excitation mode.
  • the main idea, as compared with the conventional rotating electrical machine shown on figures 5 and 6, is to interchange one connecting bar in a phase belt of each phase with the corresponding connecting bar of an adjacent phase winding. Therefore connecting bars are interchanged in the same way for each phase. Even if such a solution allows reducing the 2.p node excitation mode, the reduction is not optimized and creates also high rotor surface losses.
  • the aim of this invention is to provide a stator winding of a rotating electrical machine where the number of slots per pole and phase is fractional, the reduction of an electromagnetic excitation force of a 2.p component is optimized, the stator and rotor losses are limited, vibrations of the stator are highly decreased and the reliability of the machine is increased.
  • the invention concerns a 4.5 slots per pole and phase stator winding of a rotating electrical machine, comprising a rotor and a stator with slots distributed around a rotation axis of the rotor, the stator winding comprising three phase windings and being formed, in each slot, of a first layer and a second layer each phase winding forming at least two phase belts, each phase belt comprising several coils turns connected in series and defining a central axis of the phase belt, each coil turn comprising two connecting bars, with a first connecting bar belonging to the first layer and a second connecting bar belonging to the second layer, whereas:
  • the first connecting bars of each phase belt form a group of first connecting bars comprising an outermost first connecting bar, which is further from the central axis of this phase belt than the other first connecting bars of the same group and an innermost first connecting bar which is closer to the central axis than the other first connecting bars of the same group;
  • the second connecting bars of each phase belt form a group of second connecting bars comprising an outermost second connecting bar, which is further from the central axis of this phase belt than the other second connecting bars of the same group and an innermost second connecting bar which is closer to the central axis than the other second connecting bars of the same group.
  • an outermost first connecting bar of a group of first connecting bars of at least one phase belt is disposed in a slot which is separated from the slots, which accommodate at least two other first connecting bars of the same group, by one slot, which accommodates an innermost first connecting bar of another group of first connecting bars of another phase belt of another phase winding, and
  • an outermost second connecting bar of a group of second connecting bars of at least one phase belt is disposed in a slot which is separated from the slots, which accommodate at least two other second connecting bars of the same group, by one slot, which accommodates an innermost second connecting bar of another group of second connecting bars of another phase belt of another phase winding,
  • a single first phase winding comprises at least one phase belt for which:
  • the disposition of the phase windings explained above allows optimizing the reduction of the 2.p node excitation mode, with p the number of poles pairs.
  • Working conditions and the reliability of a rotating electrical machine comprising such a stator winding are optimized.
  • such a 4.5 slots per pole and phase stator winding may incorporate one or several of the following features:
  • each 5-coil turn phase belt of said single phase winding has all its first connecting bars disposed in adjacent slots and all its second connecting bars disposed in adjacent slots ;
  • the outermost first connecting bar is disposed in a slot which is separated from the slots, which accommodate four other first connecting bars of the same group, by one slot, which accommodates an innermost first connecting bar of another group of first connecting bars of a 4-coil turn phase belt of another phase winding
  • the outermost second connecting bar is disposed in a slot which is separated from the slots, which accommodate four other second connecting bars of the same group, by one slot, which accommodates an innermost second connecting bar of another group of second connecting bars of a 4-coil turn phase belt of another phase winding ;
  • the first and second connecting bars are separated, for at least each coil turn comprising a first connecting bar and a second connecting bar of one phase winding in a respective slot adjacent with respectively at least one slot comprising a first connecting bar and a second connecting bar of the same phase winding, by a global coil pitch corresponding to a number of slots equal to 1 1 ;
  • each 4-coil turn phase belt of said single phase winding has all its first connecting bars disposed in adjacent slots and all its second connecting bars disposed in adjacent slot ;
  • the outermost first connecting bar is disposed in a slot which is separated from the slots, which accommodate four other first connecting bars of the same group, by one slot, which accommodates an innermost first connecting bar of another group of first connecting bars of a 4-coil turn phase belt of another phase winding
  • the outermost second connecting bar is disposed in a slot which is separated from the slots, which accommodate four other second connecting bars of the same group, by one slot, which accommodates an innermost second connecting bar of another group of second connecting bars of a 4-coil turn phase belt of another phase winding.
  • the outermost first connecting bar is disposed in a slot which is separated from the slots, which accommodate four other first connecting bars of the same group, by one slot, which accommodates an innermost first connecting bar of another group of first connecting bars of a 4-coil turn phase belt of another phase winding
  • the innermost second connecting bar is disposed in a slot which is separated from the slots, which accommodate four other second connecting bars of the same group, by one slot, which accommodates an outermost second connecting bar of another group of second connecting bars of a 4-coil turn phase belt of another phase winding.
  • the outermost second connecting bar is disposed in a slot which is separated from the slots, which accommodate four other second connecting bars of the same group, by one slot, which accommodates an innermost second connecting bar of another group of second connecting bars of a 4-coil turn phase belt of another phase winding, and the innermost first connecting bar is disposed in a slot which is separated from the slots, which accommodate four other first connecting bars of the same group, by one slot, which accommodates an outermost first connecting bar of another group of first connecting bars of a 4-coil turn phase belt of another phase winding ;
  • the first and second connecting bars are separated, for at least each coil turn comprising a first connecting bar and a second connecting bar of one phase winding in a respective slot adjacent with respectively at least one slot comprising a first connecting bar and a second connecting bar of the same phase winding, by a global coil pitch corresponding to a number of slots equal to 12 ;
  • the first layer corresponds to a portion of the stator winding disposed in the bottom of the slots and second layer corresponds to another portion of the stator winding disposed in the top of the slots, or conversely.
  • figure 1 is a cross section of a rotating electrical machine having a stator winding according to the invention
  • figure 2 is a developed schematic view showing one phase winding of a stator winding of a rotating electrical machine according to a first embodiment
  • figure 3 is a table representing in a schematic way the position of the different phase windings for a stator winding according to the first embodiment
  • figure 4 is a table similar to figure 3 for a stator winding according to a second embodiment
  • figure 5 is a developed schematic view showing one phase winding of a stator winding of a conventional rotating electrical machine; and - figure 6 is a table similar to figure 3 for the winding of figure 5.
  • Figure 1 partially represents a rotating electrical machine 10.
  • the electrical machine 10 includes a stator 12 and a rotor 14 disposed coaxially with respect to an axis X-X of rotation of the rotor 14.
  • the stator 12 surrounds the rotor 14 and an annular gap 15 is formed between the rotor 14 and the stator 12.
  • the stator 12 includes an armature core 16. Some slots 18 are regularly disposed along an internal face 162 of armature core 16, around axis X-X. Slots 18 are intended to receive a stator winding 20 which conveys three phases.
  • the stator winding 20 includes three different phase windings, 22, 24, 26, represented on figure 3 and corresponding to a first 22, a second 24 and a third 26 phase windings conveying the three different phases.
  • first phase winding 22 is represented with vertical hatchings
  • second phase winding 24 is represented with diagonal hatchings inclined of 45° on the left compared to the vertical hatchings
  • third phase winding 26 is represented with diagonal hatchings inclined of 45° on the right compared to the vertical hatchings.
  • Stator winding 20 is also divided in a first layer 28 and a second layer 30, which go through all slots 18.
  • phase belts 32, 34 Each first 22, second 24 and third 26 winding forms phase belts 32, 34, and each phase belt 32, 34 includes several coil turns 36 connected in series, which define a central axis Y of the phase belt. More precisely, there are two different types of phase belts 32, 34, 5-coil turn phase belt 32 and 4-coil turn phase belt 34.
  • phase windings 24 and 26 are omitted on figure 2.
  • figure 2 shows phase winding 22 only.
  • the central axis Y of a phase belt is an axis parallel to slots 18 and median between the two connecting bars of this phase belt separated by the largest distance measured perpendicularly to slots 18.
  • the first layer 28 corresponds to a portion of the stator winding 20 placed in the bottom of the slots 18 and the second layer 30 to another portion of the stator winding 20 placed in the top of slots 18, next to face 162.
  • first layer 28 corresponds to a portion of stator winding 12 placed in the top of slots 18 and second layer 30 to another portion of stator winding 12 placed in the bottom of slots 18.
  • Each coil turn 36 includes two connecting bars 42, 44, a first connecting bar 42 belonging to first layer 28 and a second connecting bar 44 belonging to second layer 30.
  • the ends of the first 42 and second 44 connecting bars are connected in series in order to form coil turn 36.
  • First 42 and second 44 connecting bars of one coil turn 36 are separated from each other by a predetermined coil pitch P, corresponding to a number of slots 18.
  • the first connecting bars 42 of each phase belt 32, 34 form a group of first connecting bars comprising an outermost first connecting bar 42 0 which is further from the central axis Y of this phase belt 32, 34 than the other first connecting bars 42 of the same group and an innermost first connecting bar 42
  • the first connecting bars in slots 18 12 , 18 13 , 18 14 , 18 15 , 18 16 form a group 46 of first connecting bars of a 5-coil turn phase belt 32.
  • the outermost first connecting bar 42 0 of this group 46 is in slot 18 12 and the innermost first connecting bar 42
  • the second connecting bars 44 of each phase belt 32, 34 form a group of second connecting bars comprising an outermost second connecting bar 44 0 , which is further from the central axis Y of this phase belt 32, 34 than the other second connecting bars 44 of the same group and an innermost second connecting bar 44
  • the second connecting bars 44 in slots 18 2 3, 18 24 , 18 2 5, 18 2 6, 18 27 form a phase group 47 of second connecting bars of a 5-coil turn phase belt 32.
  • the outermost second connecting bar 44 0 is in slot 18 27 and the innermost first connecting bar 44
  • each 5-coil turn phase belt 32 of the first phase winding 22 has all its first connecting bars 42 disposed in adjacent slots 1812 to 18i 6 and all its second connecting bars 44 disposed in adjacent slots 1823 to 18 27 .
  • the outermost first connecting bars 42 0 are respectively disposed in the slots 18 2 o, 18 2 which are respectively separated from the slots 1822 to 18 2 5 and 18 4 to 18 7 , which accommodate four other first connecting bars 42 of the same group, by one slot, respectively 18 2 i, 18 3 , which accommodates an innermost first connecting bar 42
  • the outermost second connecting bars 44 0 are respectively disposed in the slots 1810, 1819 which are respectively separated from the slots 18 5 to 18 8 and 18 14 to 1817, which accommodate four other second connecting bars 44 of the same group, by one slot, respectively 189, 18i 8 , which accommodates respectively the innermost second connecting bar 44
  • specific clips 48 are used to connect the innermost first 42
  • Specific clips 48 are also used to connect the innermost second connecting bar 44
  • , 44 0 which is separated from some slots which accommodate at least two respectively first 42 or second 44 connecting bars of the same group, by one slot which accommodates respectively a connected first 42 or second 44 connecting bar of another group, is connected to the corresponding second or first connecting bars using a specific clip 48, in order to have coil turns 36 connected in series for each phase belt 32, 34.
  • the connexion between the phase belt of the first phase winding 22 are not represented but can be realised in different manners.
  • the 5-coil turn phase belt 32 and the 4-coil turn phase belt 34 are connected in series.
  • the global coil pitch P between the first connecting bars 42 and the second connecting bar 44 is globally set to eleven. More precisely, the global coil pitch P is set to eleven slots for each coil turn 36 comprising a first connecting bar 42 and a second connecting bar 44 of the first phase winding 22 located in a respective slot adjacent with respectively at least one slot comprising a first connecting bar 42 and a second connecting bar 44 of the first phase winding 22. The same applies for each coil turn 36 comprising a first connecting bar 42 and a second connecting bar 44 of the second 24 and third 26 phase windings.
  • the global pitch P is fixed to eleven slots in order to reduce the lowest order electromagnetic excitation force corresponding to the term: B 1 .B 2 .cos(p.6> + 2.iy.t) , as explained in relation to equation 3.
  • the global coil pitch P defined as above between the first connecting bars 42 and the second connecting bar 44 of each coil turn 36, is globally set to twelve.
  • the 4-coil turn phase belt 34 of the first phase winding 22 has all its first connecting bars 42 disposed in adjacent slots 18 2 6, 18 27 , 18- ⁇ , 18 2 , and all its second connecting bars 44 disposed in adjacent slot 18-n to 18 14 .
  • the outermost first connecting bar 42 0 is disposed in the slot 18-n which is separated from the slots 18i 3 to 18i 6 , which accommodate four other first connecting bars 42 of the same group, by the slot 1812, which accommodates an innermost first connecting bar 42
  • the outermost second connecting bar 42 0 is disposed in the slot 18 2 which is separated from the slots 18i 4 to 18 27 , which accommodate four other second connecting bars 44 of the same group, by the slot ' ⁇ 8' ⁇ which accommodates an innermost second connecting bar 44
  • the outermost first connecting bar 42 0 is disposed in the slot 18 20 which is separated from the slots 18 22 to 18 25 , which accommodate four other first connecting bars 42 of the same group, by the slot 18 2 i , which accommodates an innermost first connecting bar 42
  • is disposed in the slot 18 5 , which is separated from the slots 18 7 to 18i 0 which accommodate four other second connecting bars of the same group, by the slot 18 6 , which accommodates an outermost second connecting bar 42 0 of another group of second connecting bars of the 4-coil turn phase belt 34 of the third phase winding 26,
  • the outermost second connecting bar 44 0 is disposed in the slot 18 2 o, which is separated from the slots 18i 5 to 18i 8 , which accommodate four other second connecting bars of the same group, by the slot 18 19 , which accommodates an innermost second connecting bar 44
  • is disposed in a slot 18 8 which is separated from the slots 18 3 to 18 6 which accommodate four other first connecting bars of the same group, by one slot 18 7 , which accommodates an outermost first connecting bar 42 0 of another group of first connecting bars 42 of the 4-coil turn phase belt 34 of the second phase winding 24.
  • the stator 12 could include, on its internal face, fifty-four slots, which implies that the stator 12 would comprise four poles.
  • one 5-coil turn phase belt and one 4-coil turn phase belt of a same phase are connected in series and two sets of circuit including series- connected 5-coil turn phase belt and 4-coil turn phase belt are generally connected in parallel and form a phase winding.
  • the arrangement of the connecting bars correspond respectively to the one presented on figure 3 and on figure 4 repeated twice.
  • the invention concerns all stator windings 20 with 4.5 slots 18 per pole and phase.
  • a coil turn 36 which includes a first connecting bar 42 or a second connecting bar 44 of one phase winding in a respective slot which is adjacent to two slots comprising two first connecting bars of respectively two second connecting bars 44 of a different phase winding 22, 24, 26 has generally a coil pitch P different compared to the desired global coil pitch.
  • Table 1 shows the relationship between the coil pitch P and the four node excitation vibration mode for the third embodiment and for the prior art, for a fifty-four slots stator. Table 1 indicates also the rotor surface losses.
  • the coil turns arrangement is no more symmetrical because the arrangements of connecting bars 42, 44 is different according to the phase windings 22, 24, 26. These asymmetrical arrangements could create a slight unbalance of the unloaded machine voltage and also a slight unbalance of the phase current when the machine is loaded. The estimated unbalances are low. Therefore the functioning of an electrical machine comprising the stator winding 20 according to the first, second, third and fourth embodiments is optimized and vibrations are reduced.
  • first layer 28 corresponds to a portion of stator winding 12 placed in the top of slots 18 and second layer 30 to another portion of stator winding 12 placed in the bottom of slots 18.
  • each phase winding 22, 24, 26 in the different slots 18 could be switched.
  • the position of phase winding 24 and phase winding 26 could be switched.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

L'invention concerne un enroulement de stator à 4,5 fentes par pôle et par phase (20) comprend trois enroulements de phase (22, 24, 26) et est formé dans une première couche (28) et une seconde couche (30) disposées dans chaque fente (181-1827) d'un stator. Chaque enroulement de phase (22, 24, 26) forme au moins deux bobinages de phase (34) comportant plusieurs spires de bobine (36). Chaque spire de bobine (36) comprend une première barre de raccordement (42) appartenant à la première couche (28) et une première barre de raccordement (44) appartenant à la seconde couche (30). Pour au moins deux enroulements de phase (22, 24, 26), certaines barres de raccordement situées le plus à l'extérieur 420, 440) d'un groupe (46, 47) de premières et de secondes barres de raccordement (42, 44) d'au moins un bobinage de phase (32, 34) sont disposées dans des fentes (182, 1810) qui sont séparées des fentes (184-187, 186-188) qui contiennent au moins deux autres barres de raccordement du même groupe par fente (183, 189) qui contient une barre de raccordement la plus interne (42l, 44l) d'un autre groupe de premières et de seconde barres de raccordement d'un autre bobinage de phase (32 ; 34) d'un autre enroulement de phase. Un seul premier enroulement de phase (22) comprend au moins un bobinage de phase (32, 34) pour lequel, toutes les premières barres de raccordement (42) sont disposées dans les fentes adjacentes (1812-1816) et toutes les secondes barres de raccordement (44) sont disposées dans les fentes adjacentes (1823-1827).
EP14757897.5A 2013-09-03 2014-08-22 Enroulement de stator d'une machine électrique rotative Withdrawn EP3042437A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14757897.5A EP3042437A2 (fr) 2013-09-03 2014-08-22 Enroulement de stator d'une machine électrique rotative

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13182831.1A EP2843806B1 (fr) 2013-09-03 2013-09-03 Enroulement de stator d'une machine électrique tournante
EP20130193415 EP2843807A2 (fr) 2013-09-03 2013-11-19 Enroulements statoriques d'une machine électrique tournante
EP14757897.5A EP3042437A2 (fr) 2013-09-03 2014-08-22 Enroulement de stator d'une machine électrique rotative
PCT/EP2014/067892 WO2015032633A2 (fr) 2013-09-03 2014-08-22 Enroulement de stator d'une machine électrique rotative

Publications (1)

Publication Number Publication Date
EP3042437A2 true EP3042437A2 (fr) 2016-07-13

Family

ID=49083590

Family Applications (3)

Application Number Title Priority Date Filing Date
EP13182831.1A Not-in-force EP2843806B1 (fr) 2013-09-03 2013-09-03 Enroulement de stator d'une machine électrique tournante
EP20130193415 Withdrawn EP2843807A2 (fr) 2013-09-03 2013-11-19 Enroulements statoriques d'une machine électrique tournante
EP14757897.5A Withdrawn EP3042437A2 (fr) 2013-09-03 2014-08-22 Enroulement de stator d'une machine électrique rotative

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP13182831.1A Not-in-force EP2843806B1 (fr) 2013-09-03 2013-09-03 Enroulement de stator d'une machine électrique tournante
EP20130193415 Withdrawn EP2843807A2 (fr) 2013-09-03 2013-11-19 Enroulements statoriques d'une machine électrique tournante

Country Status (3)

Country Link
EP (3) EP2843806B1 (fr)
WO (2) WO2015032624A1 (fr)
ZA (1) ZA201601776B (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1053222A1 (ru) * 1982-03-29 1983-11-07 Научно-Исследовательский Проектно-Конструкторский И Технологический Институт Тяжелого Электромашиностроения Харьковского Завода "Электротяжмаш" Им.В.И.Ленина Несимметрична петлева обмотка с дробным числом пазов на полюс и фазу
RU2298869C2 (ru) * 2004-08-09 2007-05-10 Открытое акционерное общество Ярославский электромашиностроительный завод - ОАО "ELDIN" (ЭЛДИН) ТРЕХФАЗНАЯ НЕСИММЕТРИЧНАЯ ДРОБНАЯ ОБМОТКА ПРИ 2p=6c ПОЛЮСАХ В z=42c ПАЗАХ
RU2324277C2 (ru) * 2004-11-15 2008-05-10 Открытое акционерное общество Ярославский электромашиностроительный завод-ОАО "ELDIN" (ЭЛДИН) ТРЕХФАЗНАЯ ДВУХСЛОЙНАЯ ЭЛЕКТРОМАШИННАЯ ОБМОТКА В z=132·c ПАЗАХ ПРИ 2p=26·c ПОЛЮСАХ (q=44/13)
RU2324276C2 (ru) * 2004-11-15 2008-05-10 Открытое акционерное общество Ярославский электромашиностроительный завод-ОАО "ELDIN" (ЭЛДИН) ТРЕХФАЗНАЯ НЕСИММЕТРИЧНАЯ ДРОБНАЯ ОБМОТКА ПРИ 2p=12·c ПОЛЮСАХ В z=75·c ПАЗАХ
RU2324273C2 (ru) * 2004-12-02 2008-05-10 Открытое акционерное общество Ярославский электромашиностроительный завод-ОАО "ELDIN" (ЭЛДИН) ТРЕХФАЗНАЯ ДВУХСЛОЙНАЯ ЭЛЕКТРОМАШИННАЯ ОБМОТКА В z=102·c ПАЗАХ ПРИ 2p=26·c ПОЛЮСАХ (q=34/13)
JP5710329B2 (ja) 2011-03-24 2015-04-30 株式会社東芝 回転電機の電機子巻線

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
ZA201601776B (en) 2018-05-30
EP2843807A2 (fr) 2015-03-04
EP2843806B1 (fr) 2016-02-24
EP2843806A1 (fr) 2015-03-04
WO2015032624A1 (fr) 2015-03-12
WO2015032633A3 (fr) 2015-08-20
WO2015032633A2 (fr) 2015-03-12

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