WO2002049187A2 - Statordesign einer unipolar-transversalflussmaschine - Google Patents
Statordesign einer unipolar-transversalflussmaschine Download PDFInfo
- Publication number
- WO2002049187A2 WO2002049187A2 PCT/DE2001/004628 DE0104628W WO0249187A2 WO 2002049187 A2 WO2002049187 A2 WO 2002049187A2 DE 0104628 W DE0104628 W DE 0104628W WO 0249187 A2 WO0249187 A2 WO 0249187A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- rotor
- torque
- transverse flux
- module
- Prior art date
Links
Classifications
-
- 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
- H02K21/20—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine
Definitions
- the invention is based on a unipolar
- Such a unipolar transverse flux machine which is proposed in the unpublished DE 100 39 466.3, has the advantage of a simple construction in a modular design, the concentricity of the machine improving with an increasing number of module units each consisting of a stator module and a rotor module.
- the torque curve shows a considerable ripple, the so-called torque ripple.
- Stator poles spaced 360 electrical degrees from each other, achieving the best efficiency. At the same time, this also maximizes the torque component caused by harmonics or harmonics or harmonics. In order to reduce the harmonic content, the stator poles are now set individually and by different amounts against those determined by the pole pitch
- the unipolar transverse flux machine according to the invention has the advantage that, due to the symmetrical displacement of the stator pole groups according to claim 1 and the asymmetrical displacement of individual stator pole pairs, each of which is associated with a magnetic circuit, harmonic components in torque are largely " reduced " and thus also with a unipolar - Transversal flux machine with only one or two Module units a fairly good concentricity is achieved. While the symmetrical displacement of the stator pole groups requires a stator pole number that satisfies the relationship 2 n ' with n as an integer, the asymmetrical displacement of the stator pole pairs is tied to an even-numbered stator pole number.
- 1 is a partial perspective view of a two-strand, 32-pin unipolar
- FIG. 2 is a schematic plan view of a module unit of the unipolar
- FIG. 3 shows an arrangement diagram of the stator pole groups in the stator module in FIG. 2 to explain their displacement
- 4 shows a diagram of the torque curve of the four stator groups formed in the machine according to FIG. 3 over an electrical angle of 360 °
- FIG. 6 shows a diagram of one of the and 7 amplitude spectra of the torques in FIG. 5,
- Fig. 9 is an arrangement diagram of the stator poles in
- FIG. 10 shows a diagram of the torque profiles of three stator groups from a total of sixteen stator pole group pairs
- FIG. 11 shows a diagram of the resulting total torque from FIG. 10 in comparison with the torque in the case of non-displaced stator pole pairs
- FIG. 12 shows a diagram of the amplitude spectrum of the resulting total torque in FIG. 11. Description of the embodiments
- a two-strand, 32-pole unipolar transverse flux machine is shown in perspective. It has a machine housing 10 with a stator 11 held thereon and a coaxial rotor 12 which rotates in the stator 11 and which is non-rotatably seated on a rotor shaft 13 mounted in the machine housing 10.
- the rotor 12 has two rotor modules 15 and the stator 11 has the same number of stator modules 14.
- the rotor modules 15 are mounted axially one behind the other directly on the rotor shaft 13 in a rotationally fixed manner, and the stator modules 14 are fastened axially one behind the other in a radial alignment with the associated rotor module 15 on the machine housing 10.
- the unipolar transverse flux machine designed here in two strands can be designed in a simple manner with one or three or more strands by removing or adding a module unit consisting of stator module 14 and rotor module 15.
- the rotor module 15 consists of two coaxial, toothed, ferromagnetic rotor rings 16, 17 which sit on the rotor shaft 13 in a rotationally fixed manner and clamp between them a permanent magnet ring 18 which is unipolarly magnetized in the axial direction, that is to say in the direction of the rotor or stator axis 19.
- Each rotor ring 16, 17 is toothed on its outer circumference facing away from the rotor axis 19 with constant tooth pitch, so that the through. in each case a tooth gap 21 separate teeth 22 of the resulting Zahnre 'ihen a same angle of rotation distance from one another have.
- the teeth 22 on the rotor ring 16 and on the rotor ring 17 are aligned with each other in the axial direction.
- the rotor rings 16, 17 with the teeth 22 formed thereon in one piece are laminated and are preferably composed of the same sheet metal die cuts which abut one another in the axial direction.
- the stator module 14 which concentrically surrounds the rotor module 15 with a radial spacing while leaving air gaps, has an annular coil 23 arranged coaxially to the rotor axis 19 and U-shaped, yoke-like stator poles 24, 25 which extend over the annular coil 23.
- a magnetic circuit closes via a stator pole 24, a stator pole 25 and a tooth 22 of the rotor 12, the stator poles 24 with their yoke legs overlapping the ring coil 23 and the stator poles 25 with their yoke web lying radially below the ring coil 23, which is why Stator poles 24 ' long and the stator poles 25 have short yoke legs.
- the stator poles 24, 25, which are also laminated and are composed of stamped sheets to form laminated cores, are fixed here on the machine housing 10 with a pole pitch ⁇ corresponding to half the tooth pitch on the rotor module 15.
- the stator poles 24, 25 are arranged such that the one yoke leg with the one rotor ring 16 and the other yoke leg are radially aligned with the other rotor ring 17 of the associated rotor module 12, the free end faces of the yoke legs forming the pole faces of the rotor ring 16 and 17 face each other with a radial air gap distance.
- the two are arranged axially next to one another in the machine housing 10 Stator modules 14 of the two module units are rotated by 90 electrical degrees relative to one another, which corresponds to half a pole pitch ⁇ .
- the offset angle in the direction of rotation is 5.625 ° spatially.
- Torque ripples expresses to reduce or to press below a required level. These measures are described below using a module unit as schematically shown in plan view in FIG. 2. The second module unit shown in FIG. 1 is then modified in the same way.
- Stator pole groups 131-134 formed, which have an equal number of stator poles 24, 25.
- four stator pole groups 131-134, each with eight stator poles 24, 25, are formed.
- This k Stator pole groups form m »k / 2 stator pole group pairs, each stator pole group belonging to 131-134 m pairs.
- stator pole group 131 + 132 stator pole group 133 + 134
- FIG. 4 shows the torque curve for the four stator pole groups 131-134 over an electrical angle of 360 °.
- Curve a shows the torque curve for the stator pole group 131
- curve b the torque curve for the stator pole group 132
- curve c the torque curve for the stator pole group 133
- curve d the torque curve for the stator pole group 134.
- this is the case total moment of the module unit resulting from the summation of these curves a, b, c, d is marked with e.
- curve f indicates the total torque of the module unit with the stator poles 24, 25 not shifted.
- stator poles 24, 25 are eight in total Stator pole groups each with four in order to subdivide the stator poles 24, 25 offset from one another ⁇ . These eight stator pole groups alternately belong to a total of twelve stator pole group pairs.
- FIG. 8 - 12 a second way of reducing the harmonic content in the unko-compensated unipolar transverse flux machine according to FIG. 1 is illustrated.
- This type of displacement of the stator poles 24, 25 requires a number of stator poles 24, 25 which is only an even number and does not have to satisfy the condition 2 n , with n as an integer.
- n as an integer.
- a harmonic reduction in the torque of a 50-pole or 36-pole unipolar transverse flux machine can be achieved.
- a module unit with thirty-two stator poles 24, 25 is shown in FIG. 8, again shown schematically, wherein all stator poles 24, 25 symmetrically ⁇ by one pole pitch offset from one another are arranged.
- a stator pole 24 and a stator pole 25 each form a stator pole pair 135.
- a stator pole pair or a plurality of stator pole pairs 135 are made from their symmetrical angle ß by an electrical angle
- the size of the angle ⁇ is calculated so that the fundamental vibration generated by the respective stator pole pair 135 is greater in torque than a predetermined upper value and the torque components due to the selected harmonics do not exceed a predetermined upper value.
- the upper limits are set, for example, so that the amplitude of the harmonics or harmonics is less than 3% of the fundamental oscillation amplitude in the case of an uncompensated machine and, moreover, the fundamental oscillation amplitude is not less than 90% of the fundamental oscillation amplitude in the uncompensated machine.
- N P is the number of stator poles 24, 25 and N w is the number of possible angular positions ⁇ . From this number N tot of the possible solutions, one filters out those solutions which meet the above-mentioned upper limits, that is to say cause an at least 90% fundamental oscillation amplitude while simultaneously reducing the amplitudes of the harmonics, preferably the 3rd and 5th harmonics, to below 3%.
- Curve g in the diagram of FIG. 10 shows the accumulated torque curve of the seven undisplaced stator pole pairs 135, the accumulated torque curve of the five stator pole pairs 135 electrically shifted by 36 ° and curve h and the accumulated one
- the resulting torque of the module unit shows the curve k in FIG. 11.
- the torque curve of the uncompensated module unit with curve f is shown in FIG.
- the amplitude spectrum of the torque in FIG. 12 shows that the amplitudes of the 3rd and 5th harmonics are much smaller than in the uncompensated machine (cf. FIG. 7) and are less than 3% of the uncompensated fundamental oscillation amplitude.
- the amplitude of the torque has not dropped below 90% of the amplitude of the torque of the uncompensated machine.
- the second harmonic (FIG. 12) still present in the torque of the module unit can also be disregarded here, because the second harmonic, as already explained above, is largely compensated for by the second module unit with its 90 ° shift.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/450,463 US6847135B2 (en) | 2000-12-13 | 2001-12-11 | Unipolar transverse flux machine |
EP01989389A EP1344300A2 (de) | 2000-12-13 | 2001-12-11 | Statordesign einer unipolar-transversalflussmaschine |
JP2002550383A JP2004516780A (ja) | 2000-12-13 | 2001-12-11 | ユニポーラ横磁束電動機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10062073A DE10062073A1 (de) | 2000-12-13 | 2000-12-13 | Unipolar-Transversalflußmaschine |
DE10062073.6 | 2000-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002049187A2 true WO2002049187A2 (de) | 2002-06-20 |
WO2002049187A3 WO2002049187A3 (de) | 2002-10-24 |
Family
ID=7666966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/004628 WO2002049187A2 (de) | 2000-12-13 | 2001-12-11 | Statordesign einer unipolar-transversalflussmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6847135B2 (de) |
EP (1) | EP1344300A2 (de) |
JP (1) | JP2004516780A (de) |
DE (1) | DE10062073A1 (de) |
WO (1) | WO2002049187A2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10140303A1 (de) * | 2001-08-16 | 2003-02-27 | Bosch Gmbh Robert | Unipolar-Transversalflußmaschine |
GB2430560A (en) * | 2005-09-22 | 2007-03-28 | Alstom Power Conversion Ltd | Laminated stator for tubular electrical machines |
US7868511B2 (en) * | 2007-05-09 | 2011-01-11 | Motor Excellence, Llc | Electrical devices using disk and non-disk shaped rotors |
KR101531728B1 (ko) | 2007-07-09 | 2015-06-25 | 클리어워터 홀딩스, 엘티디. | 코일이 독립적이고, 부품이 모듈형이며 자기베어링이 달린 전자기 기계 |
US7830057B2 (en) * | 2008-08-29 | 2010-11-09 | Hamilton Sundstrand Corporation | Transverse flux machine |
WO2010036221A1 (en) | 2008-09-26 | 2010-04-01 | Clearwater Holdings, Ltd. | Permanent magnet operating machine |
WO2010062766A2 (en) | 2008-11-03 | 2010-06-03 | Motor Excellence, Llc | Polyphase transverse and/or commutated flux systems |
EP2548288A1 (de) | 2010-03-15 | 2013-01-23 | Motor Excellence, LLC | Quer- und/oder mischflusssysteme für verringerte flusslecks, verringerten hysteresverlust und phasenabgleich |
US8395291B2 (en) | 2010-03-15 | 2013-03-12 | Electric Torque Machines, Inc. | Transverse and/or commutated flux systems for electric bicycles |
US8222786B2 (en) | 2010-03-15 | 2012-07-17 | Motor Excellence Llc | Transverse and/or commutated flux systems having phase offset |
US8854171B2 (en) | 2010-11-17 | 2014-10-07 | Electric Torque Machines Inc. | Transverse and/or commutated flux system coil concepts |
US8952590B2 (en) | 2010-11-17 | 2015-02-10 | Electric Torque Machines Inc | Transverse and/or commutated flux systems having laminated and powdered metal portions |
WO2012067893A2 (en) | 2010-11-17 | 2012-05-24 | Motor Excellence, Llc | Transverse and/or commutated flux systems having segmented stator laminations |
US10505412B2 (en) | 2013-01-24 | 2019-12-10 | Clearwater Holdings, Ltd. | Flux machine |
JP6253520B2 (ja) | 2014-05-30 | 2017-12-27 | 株式会社東芝 | 回転電機 |
US20160126789A1 (en) * | 2014-10-31 | 2016-05-05 | GM Global Technology Operations LLC | Permanent magnet motor |
JP6539465B2 (ja) | 2015-03-19 | 2019-07-03 | 株式会社東芝 | 横方向磁束型回転電機 |
US11189434B2 (en) | 2017-09-08 | 2021-11-30 | Clearwater Holdings, Ltd. | Systems and methods for enhancing electrical energy storage |
CN116436188A (zh) | 2017-10-29 | 2023-07-14 | 清水控股有限公司 | 模块化电磁机器及其使用和制造方法 |
RU195975U1 (ru) * | 2019-12-16 | 2020-02-12 | Акционерное общество «АВТОВАЗ» | Генератор |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4517478A (en) * | 1983-04-08 | 1985-05-14 | Portescap | Electric stepper motor |
US4518883A (en) * | 1981-12-04 | 1985-05-21 | Portescap | Electric motor with permanent magnet rotor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6169364A (ja) | 1984-09-11 | 1986-04-09 | Toshiba Corp | ステツプモ−タ |
US4703243A (en) * | 1986-04-17 | 1987-10-27 | Kollmorgen Technologies Corporation | Stepping motor harmonic suppression |
JPH10126982A (ja) * | 1996-10-24 | 1998-05-15 | Matsushita Electric Ind Co Ltd | 永久磁石モータ |
JP4091197B2 (ja) * | 1999-02-15 | 2008-05-28 | 三菱電機株式会社 | 回転電機 |
-
2000
- 2000-12-13 DE DE10062073A patent/DE10062073A1/de not_active Withdrawn
-
2001
- 2001-12-11 WO PCT/DE2001/004628 patent/WO2002049187A2/de active Application Filing
- 2001-12-11 EP EP01989389A patent/EP1344300A2/de not_active Withdrawn
- 2001-12-11 JP JP2002550383A patent/JP2004516780A/ja active Pending
- 2001-12-11 US US10/450,463 patent/US6847135B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4518883A (en) * | 1981-12-04 | 1985-05-21 | Portescap | Electric motor with permanent magnet rotor |
US4517478A (en) * | 1983-04-08 | 1985-05-14 | Portescap | Electric stepper motor |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 236 (E-428), 15. August 1986 (1986-08-15) -& JP 61 069364 A (TOSHIBA CORP), 9. April 1986 (1986-04-09) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10, 31. August 1998 (1998-08-31) -& JP 10 126982 A (MATSUSHITA ELECTRIC IND CO LTD), 15. Mai 1998 (1998-05-15) * |
See also references of EP1344300A2 * |
Also Published As
Publication number | Publication date |
---|---|
US20040075357A1 (en) | 2004-04-22 |
JP2004516780A (ja) | 2004-06-03 |
DE10062073A1 (de) | 2002-06-20 |
US6847135B2 (en) | 2005-01-25 |
EP1344300A2 (de) | 2003-09-17 |
WO2002049187A3 (de) | 2002-10-24 |
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