WO2006058871A2 - Hochpolige permanenterregte synchronmaschine mit zahnspulen - Google Patents
Hochpolige permanenterregte synchronmaschine mit zahnspulen Download PDFInfo
- Publication number
- WO2006058871A2 WO2006058871A2 PCT/EP2005/056265 EP2005056265W WO2006058871A2 WO 2006058871 A2 WO2006058871 A2 WO 2006058871A2 EP 2005056265 W EP2005056265 W EP 2005056265W WO 2006058871 A2 WO2006058871 A2 WO 2006058871A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- synchronous machine
- magnet synchronous
- permanent magnet
- grooves
- machine according
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
-
- 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
Definitions
- the invention relates to a permanent-magnet synchronous machine with a rotor and with a stator, which contains a dreistrnaturei- ges, constructed with tooth coils winding system.
- Such a permanent magnet synchronous machine is currently used in various embodiments. Examples are described in DE 199 61 760 A1 and in DE 101 24 415 A1 .
- a common machine type is a low number of reels, for example, three, always accompanied by a low Nutzpolzipiere, for example, one.
- Such machines are operated at the base pole number of the stator.
- so-called harmonic machines in which a number of pole pairs of the rotor corresponds to an integer multiple of the Grundpolzipress of the stator.
- Such multi-pole Syn ⁇ chronmaschinen but have always a higher number of packages is provided, for example, a pole pair number of four, WO at. Usually then nine or twelve coils.
- the stand has a total of six grooves and in ⁇ each of the grooves only turns of a single of the three tooth coils are arranged. In the circumferential direction then changes a wound tooth with a unwound tooth.
- These single-layered dental coils each enclose a tooth and are structurally separated from one another by an unwound tooth. This results in a very good electrical insulation of the tooth coils against each other by design, without the need for separate insulation means should be used.
- the tooth coils may be formed as prefabricated form coils. This simplifies the production considerably. This variant can be done without a stator core on the laminated ⁇ de winding of the teeth, which may otherwise involve a complex and thus cost-increasing threading technique.
- the use of form coils also leads to a groove cross-section related to very high copper groove filling, whereby the ohmic coil resistance decreases and the utilization increases.
- the tooth coils each have a winding of several turns comprise and the respective windings are formed so that adjacent turns lie during operation at only slightly different ⁇ electrical potential.
- the potential difference between adjacent turns is only a fraction of the electrical potential applied between the two coil leads.
- the first turn connected to the one feeder line is also arranged within the winding in a locally separated manner from the last winding connected to the other feeder line. This can reduce the electric Isolationsauf ⁇ wall for used to make the tooth coils e- lektrischen conductor and a higher proportion of copper are introduced into the grooves.
- the exact placement of the individual turns can be achieved particularly well by means of a preforming of preformed coils.
- the grooves each have a turned supplied to the rotor ⁇ and implemented as open side, so that the in particular ⁇ sondere as pre-formed coils formed tooth coils can be used easily.
- the open grooves cause an advantageous with respect to a sensorless operation Indukt foundeds .
- the grooves each have two extending away from the rotor and parallel to each other angeord ⁇ designated side walls.
- the parallel design is better suited for inserting preformed form coils and also allows for higher copper groove fill.
- the grooves may continue to be covered with a NutverBankelement.
- the latter is especially designed as a simple to produce and easy to place slotted tube.
- the slot closure element is made of an electrically insulating and / or non-magnetic material. Then it does not affect either the magnetic or the electrical behavior. th the synchronous machine in an undesirable manner.
- Example ⁇ example there is a slot closure element of a plastic or a ceramic.
- Another variant is characterized in that a Magnetpolvereckung of 4/5, ie 80%, a pole pitch of the permanent magnets is provided on the rotor. This measure suppresses an interaction of rotor and stator magnetic field waves leading to a torque ripple. In particular, the fifth harmonic to the number of useful pole pairs is thus prevented, as a result of which at least a reduction of the undesirable torque ripple is achieved.
- stator has a runner facing, a circumference, cylindrical boundary surface, which is in particular in a réelleläu ⁇ fer machine, the wall surface of the stator bore.
- the grooves each have a slot slot width which is equal to the circumference divided by three times the useful pole pair number.
- the permanent-magnet synchronous machine can be designed both with an internal rotor and with an external rotor.
- the favorable embodiments described above can be used in both embodiments.
- FIG. 1 shows an embodiment of a high-pole permanent-magnet synchronous machine in cross-section
- 2 shows a slot closure element of the permanent-magnet synchronous machine of FIG. 1
- FIG. 1 shows an embodiment of a high-pole permanent-magnet synchronous machine in cross-section
- FIG 3 shows a over the circumferential angle and to the pole pair number ⁇ brushed diagram of the electric loading in the stator of a permanent-magnet synchronous machine.
- FIG 1 designed as a motor permanent-magnet synchronous machine 1 is shown in cross-sectional view. It comprises a stator 2 with a cylindrical stator bore and a rotor 3 arranged in the stator bore, which rotor is mounted rotatably about a rotation axis 4.
- the rotor 3 is an inner rotor.
- the stator 2 has on its the rotor 3 facing inner wall six grooves 5, between each of which teeth 6 and 7 are formed.
- An outer circumferential yoke connects the teeth 6 and 7 together.
- a three-strand winding system 8 is arranged with a total of three tooth coils 9, each of which is indicated in FIG 1 by a different hatching.
- Each of the tooth coils 9 encloses one of the teeth 6, so that a wound tooth 6 alternates with an unwound tooth 7 in the circumferential direction. In each of the grooves 5 only turns of a single toothed coils 9 are arranged. These are therefore single-layered dental coils 9.
- the grooves 5 have an almost parallelogram-shaped cross section. Two into the interior of the stand 2 horrre ⁇ ADORABLE groove side walls 10 and 11 are parallel to each other. Ei ⁇ ne runner facing the groove end face 12 is not flat, but formed bent according to the radius of curvature of the stator bore, so that only approximately parallel to an opposite groove bottom 13 is given. The Nutstirnseite 12 is completely open. Based on these Nutform the wound and the unwound teeth 6 and 7 have a different cross-sectional shape.
- the special groove shape with the parallel groove side walls 10 and 11 and the open Nutstirnseite 12 allows a ⁇ design of the tooth coils 9 as prefabricated form of coils that can be easily inserted into the stand 2.
- a closure element 14 in the form of a slotted art ⁇ material tube 15 is provided, which is shown in the perspective view of FIG 2. It contains at the points where it is pushed over the teeth 6 and 7, slots 16 and 17, the width of which differs according to the present at the bore wall width of the teeth 6 and 7 from each other.
- the rotor 3 is provided with eight permanent magnets 18. This results for the permanent-magnet synchronous machine 1 a Nutzpolzipress p N of four. In the permanent-magnet synchronous machine 1 is thus a high-pole
- a magnet width b M of the permanent magnets 18 is in te ⁇ z about the wound teeth 6 is a tooth width b.
- the grooves 5 each have a slot slot width b N , which is equal to the divided by the threefold Nutzpolzipiere p N circumference of the cylindrical stator bore.
- b N the groove slot width of 9.687 mm.
- the permanent magnets 18 are arranged on the rotor 3, that a total of eight evenly distributed over the circumference ⁇ te magnetic poles 19 result.
- a magnetic pole 19 is assigned a Poltei ⁇ lung ⁇ P, which is formed by an angular range of a circumferential angle ⁇ .
- the permanent magnets 18 réellere ⁇ not CKEN in the circumferential direction over the entire angular range of the pole pitch ⁇ P, but only over a portion of x- ⁇ P.
- the size x denotes a Polübereckung. It has a value less than one.
- the pole covering x is 4/5, ie 80%.
- the curves of FIG. 3 show curves of a current charge IB which is embossed in two of the toothed coils 9 of the winding system 8.
- a groove slot width b N 18 ° and a coil width of 50 ° provided.
- the permanent-magnet synchronous machine 1 can have an undesirable torque ripple, for which different causes are possible.
- the torque contains a portion with a pen ⁇ delwindmoment.
- P 0 is based on, wherein D is the diameter of the inner cylindrical boundary surface of the stator 2 and p 0, the number of pole pairs at which the cogging is to be suppressed for the first time, is designated.
- D is the diameter of the inner cylindrical boundary surface of the stator 2
- p the number of pole pairs at which the cogging is to be suppressed for the first time.
- the groove slot width b N is given as the arc length. Analog is possible an equation, is given in place of the D- ⁇ circumference of the circumferential angle of 360 ° corresponding to one full revolution of ⁇ .
- the resulting slot slot width b N is indicated as a circumferential angle segment in angular degrees.
- the cause of the torque ripple in addition to groove locking, are also interactions of rotor and stator magnetic field waves in an air gap 20, which is present between the stator 2 and the rotor 3. Particularly disturbing are the fifth and the seventh harmonic wave to the useful wave of forming in the air gap 20 magnetic air gap field.
- the fifth harmonics of the stator field and the rotor field rotate in the air gap 20 in opposite directions and he ⁇ thus witness detents at six times a Nutzpolzipiere p N. To suppress this fraction, it is sufficient if the fifth harmonic of either the stator field or the rotor field is kept low.
- a winding system 8 in question which has a small winding factor at the fifth harmonic, or for the rotor field Polbe ⁇ cover, which leads to a low fifth harmonic of the rotor field.
- the second variant is selected.
- the pole coverage x with the value 4/5 is just chosen so that the fifth harmonic of the rotor field is effectively reduced.
- the permanently excited synchronous machine 1 has further advantages. It can be used with very small external dimensions, such as with an outside diameter. knives of 40 or 72 mm. Nevertheless, operation at very high voltages of 600 V and more is possible. Due to the spatial separation of the tooth coils 9 by a respective unwound tooth 7, a high inherent electrical insulation is provided. The simple structure of the stand 2 is very well suited for segmentation and for a largely automated production.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/720,645 US7977826B2 (en) | 2004-12-01 | 2005-11-28 | Multipole permanent-magnet synchronous machine having tooth-wound coils |
| JP2007543835A JP4792469B2 (ja) | 2004-12-01 | 2005-11-28 | 歯巻回コイルを有する多極永久磁石同期機 |
| CN2005800413520A CN101069337B (zh) | 2004-12-01 | 2005-11-28 | 带有锯齿状线圈的多极永久磁铁励磁的同步电机 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004058046A DE102004058046B4 (de) | 2004-12-01 | 2004-12-01 | Hochpolige permanenterregte Synchronmaschine mit Zahnspulen |
| DE102004058046.4 | 2004-12-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2006058871A2 true WO2006058871A2 (de) | 2006-06-08 |
| WO2006058871A3 WO2006058871A3 (de) | 2006-11-02 |
Family
ID=36190601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/056265 Ceased WO2006058871A2 (de) | 2004-12-01 | 2005-11-28 | Hochpolige permanenterregte synchronmaschine mit zahnspulen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7977826B2 (de) |
| JP (1) | JP4792469B2 (de) |
| CN (1) | CN101069337B (de) |
| DE (1) | DE102004058046B4 (de) |
| WO (1) | WO2006058871A2 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100013332A1 (en) * | 2008-07-21 | 2010-01-21 | Siemens Aktiengesellschaft | Magnetic radial bearing and magnetic bearing system having a three-phase controller |
| EP2224578A1 (de) * | 2009-02-27 | 2010-09-01 | ABB Research Ltd. | Statorwickelschema einer Permanentmagnetmaschine |
| US7816832B2 (en) * | 2005-06-27 | 2010-10-19 | Siemens Aktiengesellschaft | Direct drive for large-scale drives |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2083505A1 (de) | 2008-01-28 | 2009-07-29 | Siemens Aktiengesellschaft | Dynamoelektrische Maschine mit auf Spulenkörpern angeordneten Zahnspulen |
| EP2139100B1 (de) * | 2008-06-27 | 2012-10-31 | Siemens Aktiengesellschaft | Permanentmagneterregte Synchronmaschine mit reduzierter Drehmomentenwelligkeit |
| US20110012467A1 (en) * | 2009-07-15 | 2011-01-20 | Gm Global Technology Operations, Inc. | Fractional slot multiphase machines with open slots for simplified conductor insertion in a stator |
| DE102009029274A1 (de) | 2009-09-08 | 2011-03-10 | Robert Bosch Gmbh | Synchronmaschine |
| AU2010334933B2 (en) * | 2009-12-21 | 2015-05-21 | Hoganas Ab (Publ) | Rotor for modulated pole machine |
| 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 |
| US8441159B2 (en) | 2010-07-09 | 2013-05-14 | Victor Nelson | Self-latching sector motor for producing a net torque that can be backed-up or doubled |
| JP5776170B2 (ja) * | 2010-12-01 | 2015-09-09 | 日本電産株式会社 | ステータコア及びモータ |
| EP2508769B1 (de) | 2011-04-06 | 2013-06-19 | Siemens Aktiengesellschaft | Magnetische Axiallagervorrichtung mit erhöhter Eisenfüllung |
| EP2604876B1 (de) | 2011-12-12 | 2019-09-25 | Siemens Aktiengesellschaft | Magnetisches Radiallager mit Einzelblechen in tangentialer Richtung |
| EP2639934B1 (de) | 2012-03-16 | 2015-04-29 | Siemens Aktiengesellschaft | Rotor mit Permanenterregung, elektrische Maschine mit einem solchen Rotor und Herstellungsverfahren für den Rotor |
| EP2639936B1 (de) | 2012-03-16 | 2015-04-29 | Siemens Aktiengesellschaft | Elektrische Maschine mit permanent erregtem Läufer und zugehöriger permanent erregter Läufer |
| EP2639935B1 (de) | 2012-03-16 | 2014-11-26 | Siemens Aktiengesellschaft | Rotor mit Permanenterregung, elektrische Maschine mit einem solchen Rotor und Herstellungsverfahren für den Rotor |
| EP2709238B1 (de) | 2012-09-13 | 2018-01-17 | Siemens Aktiengesellschaft | Permanenterregte Synchronmaschine mit Ferritmagneten |
| EP2793363A1 (de) | 2013-04-16 | 2014-10-22 | Siemens Aktiengesellschaft | Einzelsegmentläufer mit Halteringen |
| WO2014169974A1 (de) | 2013-04-17 | 2014-10-23 | Siemens Aktiengesellschaft | Elektrische maschine mit flusskonzentrierendem permanentmagnetro tor und reduzierung des axialen streuflusses |
| EP2838180B1 (de) | 2013-08-16 | 2020-01-15 | Siemens Aktiengesellschaft | Läufer einer dynamoelektrischen rotatorischen Maschine |
| EP2928052A1 (de) | 2014-04-01 | 2015-10-07 | Siemens Aktiengesellschaft | Elektrische Maschine mit permanenterregtem Innenstator und Aussenstator mit Wicklungen |
| EP3035496B1 (de) | 2014-12-16 | 2017-02-01 | Siemens Aktiengesellschaft | Rotor für eine permanentmagneterregte elektrische Maschine |
| SG10201913221UA (en) * | 2015-08-17 | 2020-03-30 | Delta T Llc | Low profile axial flux permanent magnet synchronous motor |
| CN106685173A (zh) * | 2015-11-10 | 2017-05-17 | 德昌电机(深圳)有限公司 | 无刷直流电机及其定子、电枢 |
| EP3373421B1 (de) | 2017-03-09 | 2019-11-20 | Siemens Aktiengesellschaft | Gehäuseeinheit für eine elektrische maschine |
| DE102018111100A1 (de) * | 2018-05-09 | 2019-11-14 | Hochschule Für Technik Und Wirtschaft Des Saarlandes | Elektrische Maschine, insbesondere Drehstrommaschine sowie deren Verwendung |
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| DE10041329A1 (de) * | 2000-08-23 | 2002-03-14 | Siemens Ag | Permanentmagneterregter Läufer für einen permanentmagneterregten elektrischen Antrieb, insbesondere für AC-Hauptantriebe |
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-
2004
- 2004-12-01 DE DE102004058046A patent/DE102004058046B4/de not_active Expired - Fee Related
-
2005
- 2005-11-28 CN CN2005800413520A patent/CN101069337B/zh not_active Expired - Fee Related
- 2005-11-28 US US11/720,645 patent/US7977826B2/en not_active Expired - Fee Related
- 2005-11-28 WO PCT/EP2005/056265 patent/WO2006058871A2/de not_active Ceased
- 2005-11-28 JP JP2007543835A patent/JP4792469B2/ja not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7816832B2 (en) * | 2005-06-27 | 2010-10-19 | Siemens Aktiengesellschaft | Direct drive for large-scale drives |
| US20100013332A1 (en) * | 2008-07-21 | 2010-01-21 | Siemens Aktiengesellschaft | Magnetic radial bearing and magnetic bearing system having a three-phase controller |
| US8378541B2 (en) * | 2008-07-21 | 2013-02-19 | Siemens Aktiengesellschaft | Magnetic radial bearing and magnetic bearing system having a three-phase controller |
| EP2224578A1 (de) * | 2009-02-27 | 2010-09-01 | ABB Research Ltd. | Statorwickelschema einer Permanentmagnetmaschine |
| WO2010097285A3 (en) * | 2009-02-27 | 2010-12-23 | Abb Research Ltd. | Stator winding scheme of a permanent magnet machine |
| US8680740B2 (en) | 2009-02-27 | 2014-03-25 | Abb Research Ltd. | Stator with intermediate teeth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101069337B (zh) | 2010-09-08 |
| DE102004058046B4 (de) | 2012-10-31 |
| WO2006058871A3 (de) | 2006-11-02 |
| US20090295251A1 (en) | 2009-12-03 |
| CN101069337A (zh) | 2007-11-07 |
| JP2008522576A (ja) | 2008-06-26 |
| DE102004058046A1 (de) | 2006-06-22 |
| US7977826B2 (en) | 2011-07-12 |
| JP4792469B2 (ja) | 2011-10-12 |
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