EP1974439A1 - Machine électrique comprenant un système d'enroulement à trois faisceaux - Google Patents

Machine électrique comprenant un système d'enroulement à trois faisceaux

Info

Publication number
EP1974439A1
EP1974439A1 EP07703757A EP07703757A EP1974439A1 EP 1974439 A1 EP1974439 A1 EP 1974439A1 EP 07703757 A EP07703757 A EP 07703757A EP 07703757 A EP07703757 A EP 07703757A EP 1974439 A1 EP1974439 A1 EP 1974439A1
Authority
EP
European Patent Office
Prior art keywords
coil
sub
winding
partial
groove
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Withdrawn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
EP07703757A
Other languages
German (de)
English (en)
Inventor
Rolf Vollmer
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1974439A1 publication Critical patent/EP1974439A1/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Withdrawn legal-status Critical Current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 invention relates to an electrical machine with a stator, the thirty-six slots and thirty-six teeth in an alternating sequence, as well as an at least partially disposed in the grooves winding system having three winding ⁇ comprises strands.
  • the partial windings of the three winding strands are completely interleaved.
  • three consecutive grooves are occupied by electrical conductors that belong to each other one of the three winding strands. Accordingly, would run the third winding phase in the third and the sixth groove in egg ⁇ ner réellenorial forming the first partial winding of the first phase winding in the first and the fourth groove, the first partial winding of the second phase winding in the second and the fifth groove, and the first partial winding ,
  • the slot assignment of the second partial windings connected in series with the respective first partial winding results from those of the first partial windings by adding six groove positions in each case.
  • electrical conductors of two different tooth coils can be arranged in a groove. Accordingly, would at a réellenitul embodiment, the first tooth coil of the first phase winding in the first and the second groove, the first tooth coil of the second winding ⁇ strand in the second and the third groove and the first tooth coil of the third winding phase in the third and fourth Grooved.
  • the slot assignment of the second tooth coils connected in series with the respective first tooth coil results from those of the first tooth coils by adding in each case three slot positions.
  • An electric machine according to the first embodiment has a relatively large winding head, whereas the second embodiment results in a comparatively small Alternutober Design.
  • the object of the invention is therefore to provide an electrical ⁇ specific machine of the kind referred to, which has a relative to the prior art cited improved performance.
  • the electric machine according to the invention is one in which a) the winding system contains a total of eighteen sub-coils installed in each case two Nu ⁇ th, so that between the ⁇ one of the sub-coils associated grooves of a different of the sub-coils associated groove b) each two of the sub-coils form one of nine nested sub-coil groups, wherein of the four adjacent slots belonging to a sub-coil group, the first and third slots of one sub-coil and the second and fourth slots of the other sub-coil of this sub-coil group are assigned, c) the two sub-coils of each sub-coil group are each assigned to two different winding phases, and d) a substantially unwound tooth is present in each case between two adjacent partial coil groups.
  • the electric machine according to the invention has a partial-mediated schachteltes winding system in which a particular Wi ⁇ ckel suits is provided 1-3. It is a very vorteilhaf ⁇ te intermediate form between the known embodiments with the fully nested winding system and with the
  • Tooth coil winding system Their ratio Nutiere / number of poles is between those of the known embodiments.
  • the electric machine according to the invention allows a re ⁇ tively small winding head height, as not all three, but in each case only two windings are interleaved. In addition, it has a high winding factor of more than 0.85 in particular.
  • the electric machine according to the invention has a larger Inteloberflä ⁇ surface of all grooves as an electric machine with a tooth coil winding system. This is favorable for the dissipation of heat resulting from copper losses in the electrical conductors of the winding system.
  • a variant in which a supply or cooling channel is arranged within the unwound teeth is favorable.
  • ⁇ by the electric machine can be provided with additional functionality.
  • the cooling can be improved so.
  • the unwound teeth are essentially freely accessible in the area of the winding heads, so that the mentioned channels can be connected very well here.
  • a number of poles in the range between fourteen and twenty-two, in particular of sixteen or twenty may be provided.
  • the electric machine has a particularly high winding factor, for example of about 0.945.
  • the complete pole number range is very well covered.
  • the behavior of the electrical machine can be interpreted very differently depending on the winding system used, but with the same stator lamination.
  • the electric machine is a permanent ⁇ excited machine, in which a equipped with permanent magnets ⁇ runner is provided.
  • Permanent magnet machines in particular permanent magnet synchronous machine as Synchronmo ⁇ motors, are nowadays often mass products, whose herstel ⁇ some flexibility development regarding the usability of the components is of particular importance.
  • inventive electric machine-laminations stand other machines ver ⁇ can contact preference as existing.
  • Low is a further variant in which a runner or as an outer ⁇ designed as internal rotor is provided.
  • the favorable winding system described above can be used in both embodiments with the advantages mentioned.
  • FIG. 1 shows an embodiment of an electrical machine with a partially-interleaved winding system in cross-sectional view
  • FIG. 2 shows an embodiment of a winding diagram of the electric machine of FIG. 1
  • an embodiment of an electric Ma ⁇ machine 1 is shown in cross-sectional view. It is designed as a permanent-magnet synchronous motor and includes a stator 2 and a rotor 3 which is rotatably mounted about a rotation axis 4.
  • the rotor 3 is an inner rotor, which is provided in the embodiment with a total of sixteen evenly distributed over the circumference of the permanent magnet 5.
  • the stator 2 contains on its inner wall facing the rotor 3 a plurality of grooves 6 distributed uniformly over the circumference in the exemplary embodiment of FIG. 1, between each of which a tooth 7 is arranged. They are connected by an outer circumferential yoke 8. Within the grooves 6 extend electrical conductors 9 of a three-phase winding system 10.
  • the winding system 10 has a comparatively high Nutzpoliere of sixteen.
  • the ratio utility number / number of poles is 2.25.
  • the magnetic field induced in the teeth 7 is low. Consequently, the yoke 8 can be relative narrow, ie with low radial extent, running. Nevertheless, there is no impairment in the magnetic flux guidance. Overall, results in a compact design with a low weight.
  • the winding system 10 is realized by means of eighteen sub-coils 11 to 28.
  • Each of the partial coils 11 to 28 is wound with a so-called winding step 1-3.
  • two of the partial coils 11 to 28 form one of nine nested partial coil groups 29.
  • a substantially unwound tooth 30 is present in each case.
  • Cooling channel 31 which is made for example by means of a longitudinal bore in the direction of the axis of rotation 4.
  • the cooling channels 31 are connected or deflected in the region of winding heads 32 and 33 in a manner not shown in detail.
  • the cooling channels 31 are not mandatory. They can also be omitted. Instead of it can also be provided in alternative embodiments, not shown differently configured supply channels.
  • the winding system 10 is three-stranded. It includes three windings 34, 35 and 36.
  • the first Wick ⁇ is lung strand 34 of the second winding phase with a solid line, shown 35 in dotted lines and the third phase winding 36 with dash-dotted lines.
  • the one sub-coil 13, 14, 15, 19, 20, 21, 25, 26 or 27 and the other sub-coil 11, 12, 16, 17, 18, 22, 23, 24 or 28 of each sub-coil group 29 are each two different ones of the three Winding strands 34, 35 and 36 assigned.
  • Each of the winding strands 34, 35 and 36 is composed of two parallel-connected partial winding strands 37 and 38, 39 and 40 or 41 and 42 together.
  • the partial winding strands 37 to 42 each comprise a series connection of three of the partial coils 11 to 28.
  • the first partial winding strand 37 of the first winding strand 34 are the second and the fourth groove for the first partial coil 11,
  • the second sub-winding strand 38 of the first winding strand 34 are the thirty-third and thirty-fifth slots for the fourth sub-coil 14,
  • the first, second and sixth partial ⁇ coil 11, and 16 a first same winding sense.
  • the third, fourth and fifth sub-coil 13, 14, and 15 are wound in opposite directions. So you have a same second winding sense, which is opposite to the first sense of winding.
  • the Nutbelegungen the second and third phase winding 35 and 36 are compared with the slot filling of the first phase winding 34 by a modulo 36 shift given at four and twenty ⁇ or twelve slot positions. This corresponds to a mechanical displacement of 240 ° or 120 °.
  • the resulting winding system 10 is partially interleaved ⁇ . It is between the knownLists ⁇ forms of a complete, so three-strand interleaved winding system and a non-nested Zahnspulen- winding system.
  • the electric machine 1 has a low height of the winding heads ⁇ 32 and 33 and a high winding factor of about 0.945. It also has a very good heat dissipation due to the large wall surface facing the entire surface of all grooves 6 and the optional cooling channels 31. Also favorable are the compact design and low weight. Advantageously, it is also possible to resort to existing stator laminations of other electrical machines. This increases flexibility and avoids new costly investments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

L’invention concerne une machine électrique munie d'un stator qui comprend trente-six rainures et trente-six dents dans un ordre alterné et d’un système d'enroulement (10) à trois faisceaux (34, 35, 36) disposé au moins partiellement dans les rainures. Le système d'enroulement (10) contient au total dix-huit bobines partielles (11-28) posées respectivement dans deux rainures de manière à ce qu'entre les deux rainures associées à une bobine partielle (13, 14, 15, 19, 20, 21, 25, 26, 27) se trouve une rainure associée à une autre bobine partielle (11, 12, 16, 17, 18, 22, 23, 24, 28). Respectivement deux bobines partielles (11-28) forment un groupe (29) des neufs groupes de bobines partielles imbriquées, la première et la troisième rainures des quatre rainures voisines associées au groupe de bobines partielles (29) étant associées à une bobine partielle (13, 14, 15, 19, 20, 21, 25, 26, 27) et la deuxième et la quatrième rainures étant associées à l'autre bobine partielle (11, 12, 16, 17, 18, 22, 23, 24, 28) de ce groupe de bobines partielles (29). Deux faisceaux d'enroulement (34, 35, 36) différents sont respectivement associés aux deux bobines partielles (11-28) de chaque groupe (29) de bobines partielles. Une dent (30) sensiblement non bobinée se trouve respectivement entre deux groupes (29) de bobines partielles voisins.
EP07703757A 2006-01-20 2007-01-10 Machine électrique comprenant un système d'enroulement à trois faisceaux Withdrawn EP1974439A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006002900A DE102006002900B4 (de) 2006-01-20 2006-01-20 Elektrische Maschine mit einem dreisträngigen Wicklungssystem
PCT/EP2007/050210 WO2007085527A1 (fr) 2006-01-20 2007-01-10 Machine électrique comprenant un système d'enroulement à trois faisceaux

Publications (1)

Publication Number Publication Date
EP1974439A1 true EP1974439A1 (fr) 2008-10-01

Family

ID=37831508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07703757A Withdrawn EP1974439A1 (fr) 2006-01-20 2007-01-10 Machine électrique comprenant un système d'enroulement à trois faisceaux

Country Status (5)

Country Link
US (1) US7705507B2 (fr)
EP (1) EP1974439A1 (fr)
JP (1) JP2009524384A (fr)
DE (1) DE102006002900B4 (fr)
WO (1) WO2007085527A1 (fr)

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DE102005039176A1 (de) * 2005-08-18 2007-02-22 Siemens Ag Elektrische Maschine mit winkelversetzten Einzelspulen
DE102007045314A1 (de) * 2007-09-21 2009-04-23 Siemens Ag Dieselelektrisches Fahrzeug
DE102008052045A1 (de) * 2008-10-16 2010-04-22 Robert Bosch Gmbh Linearmotor
DE102010001619A1 (de) * 2010-02-05 2011-08-11 Siemens Aktiengesellschaft, 80333 Ständer einer permanenterregten rotierenden elektrischen Maschine
DE102010001997B4 (de) 2010-02-16 2016-07-28 Siemens Aktiengesellschaft Linearmotor mit verminderter Kraftwelligkeit
DE102010028872A1 (de) 2010-05-11 2011-11-17 Siemens Aktiengesellschaft Antriebsvorrichtung für Dreh- und Linearbewegungen mit entkoppelten Trägheiten
US8816546B2 (en) 2010-09-23 2014-08-26 Northern Power Systems, Inc. Electromagnetic rotary machines having modular active-coil portions and modules for such machines
US9359994B2 (en) 2010-09-23 2016-06-07 Northern Power Systems, Inc. Module-handling tool for installing/removing modules into/from an electromagnetic rotary machine having a modularized active portion
US9281731B2 (en) 2010-09-23 2016-03-08 Northem Power Systems, Inc. Method for maintaining a machine having a rotor and a stator
US8789274B2 (en) 2010-09-23 2014-07-29 Northern Power Systems, Inc. Method and system for servicing a horizontal-axis wind power unit
US8912704B2 (en) 2010-09-23 2014-12-16 Northern Power Systems, Inc. Sectionalized electromechanical machines having low torque ripple and low cogging torque characteristics
EP2508769B1 (fr) 2011-04-06 2013-06-19 Siemens Aktiengesellschaft Dispositif de palier magnetique axial doté d'un remplissage en fer augmenté
EP2523319B1 (fr) 2011-05-13 2013-12-18 Siemens Aktiengesellschaft Moteur linéaire cylindrique à faible pulsation de couple
EP2604876B1 (fr) 2011-12-12 2019-09-25 Siemens Aktiengesellschaft Palier radial magnétique doté de tôles de noyau uniques en direction tangentielle
EP2639936B1 (fr) 2012-03-16 2015-04-29 Siemens Aktiengesellschaft Machine électrique à rotor excité en permanence et rotor excité en permanence correspondant
EP2639934B1 (fr) 2012-03-16 2015-04-29 Siemens Aktiengesellschaft Rotor à excitation permanente, machine électrique dotée d'un tel rotor et procédé de fabrication du rotor
EP2639935B1 (fr) 2012-03-16 2014-11-26 Siemens Aktiengesellschaft Rotor à excitation permanente, machine électrique dotée d'un tel rotor et procédé de fabrication du rotor
EP2709238B1 (fr) 2012-09-13 2018-01-17 Siemens Aktiengesellschaft Machine synchrone à excitation permanente dotée d'aimants en ferrite
EP2793363A1 (fr) 2013-04-16 2014-10-22 Siemens Aktiengesellschaft Rotor à segments individuels avec bagues de retenue
CN105122598B (zh) 2013-04-17 2017-09-01 西门子公司 具有轴向和切向通量集中的电机
EP2838180B1 (fr) 2013-08-16 2020-01-15 Siemens Aktiengesellschaft Rotor d'une machine rotative dynamoélectrique
EP3035496B1 (fr) 2014-12-16 2017-02-01 Siemens Aktiengesellschaft Rotor pour une machine électrique à aimants permanents
EP3373421B1 (fr) 2017-03-09 2019-11-20 Siemens Aktiengesellschaft Unité de boîtier pour une machine électrique
JP6729651B2 (ja) * 2018-09-18 2020-07-22 株式会社富士通ゼネラル モータ及び圧縮機

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Also Published As

Publication number Publication date
US20080197742A1 (en) 2008-08-21
JP2009524384A (ja) 2009-06-25
US7705507B2 (en) 2010-04-27
DE102006002900B4 (de) 2007-12-20
DE102006002900A1 (de) 2007-08-02
WO2007085527A1 (fr) 2007-08-02

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