EP3721532A1 - Enroulement de bobine dentée multiple pour machine à champ magnétique rotatif triphasée - Google Patents

Enroulement de bobine dentée multiple pour machine à champ magnétique rotatif triphasée

Info

Publication number
EP3721532A1
EP3721532A1 EP18812162.8A EP18812162A EP3721532A1 EP 3721532 A1 EP3721532 A1 EP 3721532A1 EP 18812162 A EP18812162 A EP 18812162A EP 3721532 A1 EP3721532 A1 EP 3721532A1
Authority
EP
European Patent Office
Prior art keywords
coil
winding
coils
machine according
induction machine
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.)
Pending
Application number
EP18812162.8A
Other languages
German (de)
English (en)
Inventor
Gerhard Huth
Jens Krotsch
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.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen GmbH and Co KG
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 Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Publication of EP3721532A1 publication Critical patent/EP3721532A1/fr
Pending 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
    • H02K3/18—Windings for salient poles
    • 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
    • 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

Definitions

  • the invention relates to a winding arrangement for a 3-strand rotary field machine and a 3-strand rotary field machine with such a winding arrangement.
  • PM synchronous machines Inverter-fed permanent magnet synchronous machines (PM synchronous machines) are used in a large number of technical applications. For reasons of cost PM synchronous machines are increasingly running with so-called tooth coil windings.
  • the tooth coil technology simplifies the stator structure of a PM synchronous machine and also enables a segmented stator structure, so that the stator can be manufactured in modules in a kind of modular concept.
  • a disadvantage of tooth coil windings is that they form a broad air gap field spectrum which, depending on the design of the motor, can be more or less disturbing. In the prior art, different winding concepts are already known for tooth coil windings.
  • z. B. small PM synchronous motors which are field-oriented operated on the inverter and are increasingly used in the field of high-speed drives, basically in dental coil technology run.
  • tooth coil winding at low pole numbers. Since tooth coil windings are subject to conditional too If the number of pole pairs is higher, PM synchronous motors with a low number of poles (for example 2-pole or 4-pole) can only be implemented to a very limited extent for high-speed drives with the known tooth coil windings.
  • a 3-stranded motor design that can be used effectively even at low pole numbers (2-pole and 4-pole) and also has a favorable winding field spectrum.
  • a basic idea of the present invention is to provide a tooth coil winding with a specific winding scheme for three winding strands W1, W2, W3, consisting of coil groups with multiple interlaced nested coils and preferably continuously changing width, where in the sub-coils of said coil groups from the inside to the outside (without crossing the head of the sub-coils) are arranged concentrically surrounding, one or more teeth and include the same or different coil turns numbers at a substantially equal occupancy of each groove with the same effective overall cross-section per groove cross-section.
  • the coil groups are arranged diametrically symmetrical to each other and partially overlap spatially along the circumference in their arrangement in the winding layers.
  • a 3-phase induction machine is provided with a 2p-pole stator with winding teeth, formed with a Wick lungsan Aunt in dental coil technology, comprising three winding strands W1, W2, W3, wherein the winding assembly formed from wound coil groups with multiple nested coils (partial coils) with the sub-coils of the said coil groups turning from the inside to the outside. are arranged centrically enclosing and comprise two or more Wi- crochet teeth, wherein the respective coil winding numbers are provided or wound in the grooves between the winding teeth, that in each case a substantially equal occupancy of each groove with the same effective overall cross section of the coils per groove cross-section given is.
  • the coil groups do not overlap in the forehead area, d. H. without intersecting conductors, intersecting partial coils or crossing coil groups.
  • the above object can thus be achieved by a 3-stranded "multi-tooth coil winding", which also represents a distributed tooth coil winding.
  • the basic element and thus the common part of such a 3-strand multi-tooth coil winding is a q-fold tooth coil, which occupies 2 * q adjacent grooves of the stator in each case half (in the upper layer or the lower layer).
  • the number of conductors of a further outer partial coil of a coil group is greater than the number of conductors of a further inner partial coil.
  • the partial coil arrangement is always concentric.
  • the number of conductors of the partial coils decreases from the outer to the inner partial coil.
  • the Lei teriere of the coil sections decreases steadily from the outer to the inner coil section, so to speak, the decrease in the number of conductors from partial coil to partial coil in the moving surfaces decreases steps.
  • the value Zo represents a predetermined number of conductors in the said partial coil
  • DZ represents the difference between the number of conductors and the respective external or internal partial coil
  • Fig. 1 shows a zone plan with identification of the coil guide for the
  • Each winding strand W1, W2, W3 of the 3-strand multi-tooth coil winding consists, according to FIG. 2, of two multi-tooth coils which are located once in the lower layer US and once in the upper layer OS.
  • the two multi-tooth coils of a winding strand are exactly offset by a pole pitch, ie by N / 2p slot pitches (where 2p is the pole number) against each other, conditions in the mentioned embodiment by 3q Nutteilun, and are thus arranged diametrically symmetrical.
  • the winding direction and therefore the current direction of both multi-tooth coils of the winding strands W1, W2 is reversed.
  • the transition to a higher stand payload increases the winding effort, but thereby improve the upper field behavior and the Wicklungsenticarmung on the laminated core of the stator.
  • a smaller copper volume of the partial coils allows a simplification in the winding process.
  • the winding strands W1, W2, W3 of the 2-pole Drehfeldwick ment according to the figure 3 are set against each other by N / 3p slot pitches ver, which means in the embodiment 2q slot pitches.
  • the number of conductors of the partial coils T of a coil group G is then distributed as follows:
  • a non-continuous graduation of the conductor numbers can be selected.
  • the partial coils T of a multi-tooth coil winding with different Wicklungsdragt diameters can be performed.
  • the copper volume and groove filling can be increased and the effective overall conductor cross-section over all grooves still largely uniform.
  • the partial coils T of a multi-tooth coil winding with the same winding wire diameter, but from x parallel coils with x-fold Win number can be formed to raise the Nutglallgrad and unify chen.
  • FIG. 6 shows two possibilities for a conductor separation, which lead to an identical slot filling in the case of the complete 3-phase field winding in all stator slots.
  • Za denotes the higher number of conductors of the outer partial coils T and Zi the lower number of conductors of the inner partial coils T

Landscapes

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

Abstract

L'invention concerne une machine à champ magnétique rotatif triphasée comprenant un stator à 2 pôles pourvu de dents d'enroulement (Z), formée avec un ensemble d'enroulement en technologie à bobines dentées comprenant trois brins d'enroulement (W1, W2, W3). L'ensemble d'enroulements est formé de groupes de bobines enroulées (G) comportant des bobines à imbrication multiple. Les sous-bobines (T) desdits groupes de bobines (G) sont disposées de manière concentrique de l'intérieur vers l'extérieur et comprennent au moins deux dents d'enroulement (Z). Les nombres d'enroulements de bobine respectifs sont prévus dans les rainures (N) entre les dents d'enroulement (Z) de sorte qu'une occupation sensiblement égale de chaque rainure (N) est donné avec la même section efficace de tous les conducteurs des bobines par section transversale de rainure.
EP18812162.8A 2017-12-05 2018-12-03 Enroulement de bobine dentée multiple pour machine à champ magnétique rotatif triphasée Pending EP3721532A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017128832.5A DE102017128832A1 (de) 2017-12-05 2017-12-05 Multi-Zahnspulenwicklung für eine 3-strängige Drehfeldmaschine
PCT/EP2018/083374 WO2019110523A1 (fr) 2017-12-05 2018-12-03 Enroulement de bobine dentée multiple pour machine à champ magnétique rotatif triphasée

Publications (1)

Publication Number Publication Date
EP3721532A1 true EP3721532A1 (fr) 2020-10-14

Family

ID=64572376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18812162.8A Pending EP3721532A1 (fr) 2017-12-05 2018-12-03 Enroulement de bobine dentée multiple pour machine à champ magnétique rotatif triphasée

Country Status (5)

Country Link
US (1) US11791683B2 (fr)
EP (1) EP3721532A1 (fr)
CN (1) CN208707501U (fr)
DE (1) DE102017128832A1 (fr)
WO (1) WO2019110523A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017112837A1 (de) * 2017-06-12 2018-12-13 Ebm-Papst Mulfingen Gmbh & Co. Kg Wicklungsanordnung für eine Drehfeldmaschine
DE102017128827A1 (de) * 2017-12-05 2019-06-06 Ebm-Papst Mulfingen Gmbh & Co. Kg Multi-Zahnspulenwicklung für eine 2-strängige Drehfeldmaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114014A1 (de) * 2001-03-22 2002-10-02 Siemens Ag Elektrische Drehfeldmaschine mit einer zweischichtigen Wicklung in den Nuten des Ständers
US7365468B2 (en) * 2004-07-20 2008-04-29 Bluway Systems, Llc Motor stator having transposed winding layers
GB0620068D0 (en) * 2006-10-10 2006-11-22 Force Engineering Ltd Improvements in and relating to electromotive machines
DE102008051047B4 (de) 2008-10-09 2015-07-30 Feaam Gmbh Elektrische Maschine
DE102009036034B4 (de) 2009-08-04 2011-07-07 FEAAM GmbH, 85579 Elektrische Maschine
DE102011011023A1 (de) 2011-02-11 2012-08-16 Feaam Gmbh Elektrische Maschine
JP5918353B2 (ja) * 2012-03-29 2016-05-18 本田技研工業株式会社 回転電機のステータ構造
RU2508593C1 (ru) * 2012-08-27 2014-02-27 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Обмотка статора трехфазных электрических машин переменного тока
JP6291292B2 (ja) * 2013-05-14 2018-03-14 アスモ株式会社 回転電機
JP6623961B2 (ja) * 2016-07-15 2019-12-25 株式会社デンソー 回転電機の固定子
DE202017103491U1 (de) * 2017-06-12 2017-07-07 Ebm-Papst Mulfingen Gmbh & Co. Kg Wicklungsanordnung für eine Drehfeldmaschine

Also Published As

Publication number Publication date
DE102017128832A1 (de) 2019-06-06
US20210104929A1 (en) 2021-04-08
US11791683B2 (en) 2023-10-17
WO2019110523A1 (fr) 2019-06-13
CN208707501U (zh) 2019-04-05

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