EP3721532A1 - Multi-zahnspulenwicklung für eine 3-strängige drehfeldmaschine - Google Patents
Multi-zahnspulenwicklung für eine 3-strängige drehfeldmaschineInfo
- 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
Links
- 238000004804 winding Methods 0.000 title claims abstract description 88
- 239000004020 conductor Substances 0.000 claims abstract description 52
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 239000011295 pitch Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 241000555745 Sciuridae Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
Description
Claims
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 (de) | 2017-12-05 | 2018-12-03 | Multi-zahnspulenwicklung für eine 3-strängige drehfeldmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3721532A1 true EP3721532A1 (de) | 2020-10-14 |
Family
ID=64572376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18812162.8A Pending EP3721532A1 (de) | 2017-12-05 | 2018-12-03 | Multi-zahnspulenwicklung für eine 3-strängige drehfeldmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US11791683B2 (de) |
EP (1) | EP3721532A1 (de) |
CN (1) | CN208707501U (de) |
DE (1) | DE102017128832A1 (de) |
WO (1) | WO2019110523A1 (de) |
Families Citing this family (2)
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)
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 |
CN104205575B (zh) * | 2012-03-29 | 2017-03-01 | 本田技研工业株式会社 | 旋转电机的定子结构 |
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 |
-
2017
- 2017-12-05 DE DE102017128832.5A patent/DE102017128832A1/de active Pending
-
2018
- 2018-03-20 CN CN201820378915.XU patent/CN208707501U/zh active Active
- 2018-12-03 US US16/769,980 patent/US11791683B2/en active Active
- 2018-12-03 WO PCT/EP2018/083374 patent/WO2019110523A1/de unknown
- 2018-12-03 EP EP18812162.8A patent/EP3721532A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019110523A1 (de) | 2019-06-13 |
US11791683B2 (en) | 2023-10-17 |
DE102017128832A1 (de) | 2019-06-06 |
US20210104929A1 (en) | 2021-04-08 |
CN208707501U (zh) | 2019-04-05 |
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