WO2004109894A1 - Permanentmagneterregter synchronmotor - Google Patents
Permanentmagneterregter synchronmotor Download PDFInfo
- Publication number
- WO2004109894A1 WO2004109894A1 PCT/EP2004/005937 EP2004005937W WO2004109894A1 WO 2004109894 A1 WO2004109894 A1 WO 2004109894A1 EP 2004005937 W EP2004005937 W EP 2004005937W WO 2004109894 A1 WO2004109894 A1 WO 2004109894A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- synchronous motor
- permanent magnet
- rotor
- stator
- excited synchronous
- Prior art date
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
Definitions
- the invention relates to a permanent magnet-excited synchronous motor with toothed coils in the stator and with a rotor.
- Pendulum moments occur with generic permanent magnet synchronous motors.
- An inclination of the rotor or stator by a slot division, as described in conventional motors, in EP 0 545 060 B1 cannot be used in electric motors with concentric winding, that is, toothed coils and a small number of uses, since this would reduce the torque too much ,
- Windings are made using the pull-in technique and if the number of usages is relatively high, the slots are usually chamfered.
- the object of the invention is to create an electrical synchronous motor, the rotor of which simply dampens or suppresses relevant harmonics in a simple manner in order to reduce pendulum torques or the torque ripple.
- tooth coils form at least part of a winding system of the permanent magnet-excited synchronous motor, the tooth coils each comprising only one mechanical pole, ie one tooth.
- a bevel by half a groove pitch 0.5 x Tn or by a bevel by 3/5 x Tn completely eliminates the fifth harmonic of the rotor field.
- Tn denotes a groove pitch.
- a design implementation of the bevel need not be limited to the rotor or stator; the effect of the bevel, for example half a groove pitch, can be divided proportionally between the stator and rotor. For example, the stator half the groove pitch and the rotor the rest of the slope to achieve the desired slope.
- FIG. 2 shows a pole wheel field of an electrical machine
- FIG. 3 shows a perspective view of a rotor according to the invention.
- the number of pole pairs corresponds to a third of the number of slots 3 of the stator 2.
- the number of teeth 8 is a multiple of three, i.e. the number of strands of the stator 2 and is expediently greater than or equal to nine.
- the stator 2 is constructed from laminated sheets which have grooves 3 into which the windings are inserted.
- the windings are in particular tooth coils 6, i.e. a toothed coil 6 comprises only one tooth 8 each.
- the rotor 4 is constructed from permanent magnets 5, which can also be designed as plates, rings or bowl-shaped magnets. These permanent magnets 5 are magnetized or arranged over the axial course of the rotor 4 in such a way that the desired inclination is obtained.
- Such a rotor 4 generates a magnet wheel field according to FIG. 2 in the air gap, which has the following course.
- Tp is the pole pitch
- ⁇ is the pole coverage factor, which is usually in the range 0.8 to 0.95.
- the lower the pole coverage ⁇ , the lower the torque delivered by the synchronous motor, ⁇ 1 is not possible for manufacturing reasons.
- the magnet wheel field shown in principle in FIG. 2 has harmonics in addition to the fundamental wave.
- the harmonics of atomic numbers five and seven are particularly relevant, which need to be dampened or even completely eliminated.
- the level of these harmonics depends largely on the pole coverage ⁇ .
- the rotor 4 and / or the stator 2 is beveled.
- a measure of the skew is the skew angle 7 according to FIG. 3. From the skew angle 7, a skew factor can be defined, on the basis of which the damping of the individual harmonics of the air gap field is then obtained.
- the inclination of the stator 2 may result from the inclined arrangement of the grooves 3 of the stator 2 relative to the shaft 9.
- the torque-generating fundamental wave is damped little and the relevant harmonics five and seven are eliminated. Both harmonics lead to pendulum moments with the atomic number 6p, i.e. 6p times the rotational frequency, where p is the number of pole pairs.
- An effective solution to avoid the pendulum moments is provided by the bevel by half a groove pitch, i.e. Tn / 2. This results in a damping of the fifth harmonic to 19% and the seventh harmonic to 13.6%.
- the most relevant cogging torque of twice the groove frequency is damped.
- the fifth harmonic is 0.
- the bevel must be smaller than half the groove pitch, namely exactly 3 / 7xTn equal to 0.4285Tn.
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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006515819A JP4480720B2 (ja) | 2003-06-10 | 2004-06-02 | 永久磁石励磁同期電動機 |
US10/560,481 US7535149B2 (en) | 2003-06-10 | 2004-06-02 | Permanent-magnet excited synchronous motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10326167A DE10326167B4 (de) | 2003-06-10 | 2003-06-10 | Permanentmagneterregter Synchronmotor |
DE10326167.2 | 2003-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004109894A1 true WO2004109894A1 (de) | 2004-12-16 |
Family
ID=33494933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/005937 WO2004109894A1 (de) | 2003-06-10 | 2004-06-02 | Permanentmagneterregter synchronmotor |
Country Status (4)
Country | Link |
---|---|
US (1) | US7535149B2 (de) |
JP (1) | JP4480720B2 (de) |
DE (1) | DE10326167B4 (de) |
WO (1) | WO2004109894A1 (de) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2139100A1 (de) | 2008-06-27 | 2009-12-30 | Siemens Aktiengesellschaft | Permanentmagneterregte Synchronmaschine mit reduzierter Drehmomentenwelligkeit |
US7906883B2 (en) | 2008-06-02 | 2011-03-15 | Honda Motor Co., Ltd. | Axial gap motor |
US7919897B2 (en) | 2008-10-09 | 2011-04-05 | Honda Motor Co., Ltd. | Axial gap type motor |
US7977843B2 (en) | 2007-10-04 | 2011-07-12 | Honda Motor Co., Ltd. | Axial gap type motor |
US8030816B2 (en) | 2006-06-06 | 2011-10-04 | Honda Motor Co., Ltd. | Motor and motor control device |
US8035266B2 (en) | 2007-04-17 | 2011-10-11 | Honda Motor Co., Ltd. | Axial gap motor |
US8040008B2 (en) | 2007-10-04 | 2011-10-18 | Honda Motor Co., Ltd. | Axial gap motor |
US8049389B2 (en) | 2008-06-02 | 2011-11-01 | Honda Motor Co., Ltd. | Axial gap motor |
US8053942B2 (en) | 2007-08-29 | 2011-11-08 | Honda Motor Co., Ltd. | Axial gap motor |
US8283829B2 (en) | 2007-06-26 | 2012-10-09 | Honda Motor Co., Ltd. | Axial gap motor |
CN102983696A (zh) * | 2012-12-04 | 2013-03-20 | 南阳防爆集团股份有限公司 | 一种舰船用电机及其降振降噪方法 |
EP3525321A1 (de) * | 2018-02-09 | 2019-08-14 | Siemens Aktiengesellschaft | Permanenterregte synchronmaschine mit reduziertem pendeldrehmoment |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005030826A1 (de) * | 2005-07-01 | 2007-01-04 | Siemens Ag | Synchronmaschine |
EP2096735A4 (de) * | 2006-12-06 | 2014-07-30 | Honda Motor Co Ltd | Axial-luftspalt-motor |
US20100052457A1 (en) * | 2008-08-29 | 2010-03-04 | Brahmavar Subhash M | Methods and apparatus for fabrication of electric motors |
JP4698745B2 (ja) | 2009-03-25 | 2011-06-08 | 三菱電機株式会社 | 永久磁石型回転電機 |
JP2015177582A (ja) * | 2014-03-13 | 2015-10-05 | 日本電産サンキョー株式会社 | 水力発電装置 |
CN106329864A (zh) * | 2015-07-09 | 2017-01-11 | 上海航天有线电厂有限公司 | 一种消旋平台的永磁同步消旋电机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5220228A (en) * | 1990-02-16 | 1993-06-15 | Sankyo Seiki Mfg. Co., Ltd. | Rotating electric machine with bevelled armature poles |
JP2000134893A (ja) * | 1998-10-29 | 2000-05-12 | Hitachi Ltd | ブラシレスモータ |
US20020003382A1 (en) * | 2000-05-25 | 2002-01-10 | Masatsugu Nakano | Permanent magnet motor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2021663A1 (en) * | 1989-07-21 | 1991-01-22 | Yoji Arita | Motor |
DE4136691A1 (de) * | 1991-11-07 | 1993-05-13 | Siemens Ag | Elektrische maschine mit einem permanentmagneterregten laeufer |
JPH1169679A (ja) | 1997-08-25 | 1999-03-09 | Toshiba Corp | 永久磁石形モータ |
US6380658B1 (en) * | 1999-07-15 | 2002-04-30 | Delphi Technologies Inc. | Method and apparatus for torque ripple reduction in sinusoidally excited brushless permanent magnet motors |
DE10041329A1 (de) * | 2000-08-23 | 2002-03-14 | Siemens Ag | Permanentmagneterregter Läufer für einen permanentmagneterregten elektrischen Antrieb, insbesondere für AC-Hauptantriebe |
US7067948B2 (en) * | 2002-10-18 | 2006-06-27 | Mitsubishi Denki Kabushiki Kaisha | Permanent-magnet rotating machine |
-
2003
- 2003-06-10 DE DE10326167A patent/DE10326167B4/de not_active Expired - Lifetime
-
2004
- 2004-06-02 WO PCT/EP2004/005937 patent/WO2004109894A1/de active Application Filing
- 2004-06-02 JP JP2006515819A patent/JP4480720B2/ja not_active Expired - Lifetime
- 2004-06-02 US US10/560,481 patent/US7535149B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5220228A (en) * | 1990-02-16 | 1993-06-15 | Sankyo Seiki Mfg. Co., Ltd. | Rotating electric machine with bevelled armature poles |
JP2000134893A (ja) * | 1998-10-29 | 2000-05-12 | Hitachi Ltd | ブラシレスモータ |
US20020003382A1 (en) * | 2000-05-25 | 2002-01-10 | Masatsugu Nakano | Permanent magnet motor |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08 6 October 2000 (2000-10-06) * |
ZHU Z Q ET AL: "INFLUENCE OF DESIGN PARAMETERS ON COGGING TORQUE IN PERMANENT MAGNET MACHINES", IEEE TRANSACTIONS ON ENERGY CONVERSION, IEEE INC. NEW YORK, US, vol. 15, no. 4, 1 December 2000 (2000-12-01), pages 407 - 412, XP002206342, ISSN: 0885-8969 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8030816B2 (en) | 2006-06-06 | 2011-10-04 | Honda Motor Co., Ltd. | Motor and motor control device |
US8035266B2 (en) | 2007-04-17 | 2011-10-11 | Honda Motor Co., Ltd. | Axial gap motor |
US8283829B2 (en) | 2007-06-26 | 2012-10-09 | Honda Motor Co., Ltd. | Axial gap motor |
US8053942B2 (en) | 2007-08-29 | 2011-11-08 | Honda Motor Co., Ltd. | Axial gap motor |
US8040008B2 (en) | 2007-10-04 | 2011-10-18 | Honda Motor Co., Ltd. | Axial gap motor |
US7977843B2 (en) | 2007-10-04 | 2011-07-12 | Honda Motor Co., Ltd. | Axial gap type motor |
US8049389B2 (en) | 2008-06-02 | 2011-11-01 | Honda Motor Co., Ltd. | Axial gap motor |
US7906883B2 (en) | 2008-06-02 | 2011-03-15 | Honda Motor Co., Ltd. | Axial gap motor |
EP2139100A1 (de) | 2008-06-27 | 2009-12-30 | Siemens Aktiengesellschaft | Permanentmagneterregte Synchronmaschine mit reduzierter Drehmomentenwelligkeit |
US8227951B2 (en) | 2008-06-27 | 2012-07-24 | Siemens Aktiengesellschaft | Permanent-magnet synchronous machine having skewed magnets for reduced torque ripple |
US7919897B2 (en) | 2008-10-09 | 2011-04-05 | Honda Motor Co., Ltd. | Axial gap type motor |
CN102983696A (zh) * | 2012-12-04 | 2013-03-20 | 南阳防爆集团股份有限公司 | 一种舰船用电机及其降振降噪方法 |
EP3525321A1 (de) * | 2018-02-09 | 2019-08-14 | Siemens Aktiengesellschaft | Permanenterregte synchronmaschine mit reduziertem pendeldrehmoment |
WO2019154573A1 (de) * | 2018-02-09 | 2019-08-15 | Siemens Aktiengesellschaft | Permanenterregte synchronmaschine mit reduziertem pendeldrehmoment |
Also Published As
Publication number | Publication date |
---|---|
JP2006527578A (ja) | 2006-11-30 |
US20070170802A1 (en) | 2007-07-26 |
DE10326167B4 (de) | 2008-10-02 |
DE10326167A1 (de) | 2005-01-05 |
US7535149B2 (en) | 2009-05-19 |
JP4480720B2 (ja) | 2010-06-16 |
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