WO2006117335A1 - Systeme d'entrainement lineaire triphase presentant une ondulation de force reduite - Google Patents

Systeme d'entrainement lineaire triphase presentant une ondulation de force reduite Download PDF

Info

Publication number
WO2006117335A1
WO2006117335A1 PCT/EP2006/061909 EP2006061909W WO2006117335A1 WO 2006117335 A1 WO2006117335 A1 WO 2006117335A1 EP 2006061909 W EP2006061909 W EP 2006061909W WO 2006117335 A1 WO2006117335 A1 WO 2006117335A1
Authority
WO
WIPO (PCT)
Prior art keywords
linear drive
phase linear
primary part
phase
winding
Prior art date
Application number
PCT/EP2006/061909
Other languages
German (de)
English (en)
Inventor
Rolf Vollmer
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2006117335A1 publication Critical patent/WO2006117335A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • 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 present invention relates to a three-phase linear drive with a primary part, the windings for three phases u, v, w, which are arranged along the direction of travel of the drive in a slot pitch Tn, and a secondary part along the direction of travel of the drive magnets in one Pole pitch Tp has.
  • far cylindrical linear motor were not ⁇ ren built for use in machine tools with correspondingly high demands on the force ripple.
  • the cause of the force ripple of a linear motor be ⁇ is in the fact that it has a beginning and an end to ⁇ .
  • end forces in the direction of movement which have a disturbing effect on the continuous movement of the linear motor, as described in more detail in the patent DE 198 29 052 Cl.
  • To reduce the force ripple there is proposed to provide the primary part with means that lead to a change in the magnetic force in the direction of movement of the linear motor in the region of the end pieces of the primary part.
  • the end surfaces of the end pieces ver ⁇ run perpendicular to the direction of movement of the Linearmo ⁇ sector.
  • end pieces which are rounded in the vicinity of the secondary part are provided.
  • the object of the present invention is to provide a three-phase linear drive, which has a reduced force ripple in idling and in rated operation.
  • this object is achieved by a three-phase linear drive with a primary part having windings for three phases u, v, w, which are arranged along the direction of travel of the drive in a slot pitch Tn, and a secondary part along the direction of travel of the drive magnets in a pole pitch Tp, wherein the ratio of slot pitch Tn and Poltei ⁇ ment distance Tp 8/15 or a multiple thereof and the windings in the primary part following winding scheme have on: u +, w-, u-, w +, u +, v +, u-, v-, u +, v +, w +, v-, w-, v +, w +; wherein the letter indicates the respective phase u, v, w of the winding, the character "+" indicates a first winding sense of a winding about a predetermined axis and the character "-" indicates a second, opposite first winding sense of a winding about the pre
  • the problem of force ripple is thus solved by a combination of several measures that prevent multiple causes of force ripple.
  • the reduction of the effect of conductance variations due to saturation (virtual teeth) is solved by the particular stator structure and the windings.
  • the primary part to the pole pitch Tp of the secondary part is a negligible force wavy ⁇ ness achieved in the current operation by the specific ratio of Statornut Vietnamese Tn.
  • the force ripple is largely eliminated by the special ratio of groove and Polannonsabpartien and the special winding sense of each coil.
  • the three-phase linear drive is configured as a synchronous machine.
  • the secondary part can be executed connection ⁇ free.
  • the three-phase linear drive is cylindrical, wherein primary and Se ⁇ secondary part are arranged concentrically with each other. It is advantageous if the primary part is formed as a hollow cylinder, so that the secondary part in the interior of the primary part in its axial direction is displaceable. In this way, a combination drive, which additionally has a rotary drive can be realized, wherein the rotor of the rotary ⁇ drive is connected to the secondary part of the three-phase linear drive.
  • At least one end face of the primary part may further be attached a soft magnetic end plate.
  • This disc may in particular be designed as a ring, the thickness of which decreases inwards.
  • the edge between the end face of the end plate and the air gap facing inner surface of the annular end plate of the primary part may be rounded. This leads to a significant Redu ⁇ cation of Kraftwellmaschine in the de-energized state.
  • the end plate can also be designed as a half ring. In each case, a half ring on both end sides of the primary part or stator at any circumferential position neutralizes the otherwise existing force ripple almost fully ⁇ constantly.
  • 1 shows a cross section through an inventive three-phase, cylindrical synchronous linear machine with ge ⁇ rounded end disks; 2 shows a cross section through a three-phase, cylindri ⁇ cal synchronous linear machine with semi-annular end ⁇ write and
  • FIG. 3 shows a plan view of a semi-annular end disk of FIG. 2
  • FIG. 1 A first embodiment of the present invention is outlined in FIG.
  • the figure shows a cross section through a three-phase cylindrical synchronous linear machine with egg ⁇ nem primary part PT and a secondary part ST.
  • the secondary part ST is of cylindrical design and can be moved in the axial direction inside the tootile primary part PT and rotatable about its axis.
  • annular magnets M are arranged on the cylindrical secondary part ST. They are magnetized in the radial direction. Their direction of magnetization alternates in the axial direction, so that alternately Nordpo ⁇ le N and south poles S result.
  • the distance of the annular magnets M is Tp.
  • the primary part PT has 15 slots into which 15 ring coils RS are inserted. These annular coils RS have the slot pitch Tn to each other.
  • the 15 coils RS are assigned to the three phases in the following order: u +, w-, u-, w +, u +, v +, u-, v-, u +, v +, w +, v-, w- , v +, w +.
  • a second embodiment of the present invention will now be explained in more detail with reference to FIG.
  • the basic structure of the three-phase, cylindrical synchronous linear drive with permanent magnets on the cylindrical secondary part ST substantially corresponds to that of the firstticiansbei ⁇ game of FIG 1.
  • half rings Hl and H2 are attached to the front sides of the primary part PT.
  • the half rings Hl, H2 have a thickness of Tp / 2 in the axial direction, ie half the pole pitch.
  • the radial height h of the half rings Hl, H2 is at least Tp / 4.
  • Clearance of the geometry of the half rings Hl, H2 is the half ⁇ ring Hl shown in FIG 3 in plan view.
  • the position of the half rings Hl, H2 on the circumference is arbitrary.
  • the formed as half rings end plates cause the air gap at one half of the primary part PT abruptly RESIZE ⁇ SSER is and remains unchanged in the other half. Insge ⁇ velvet thus results in a reduction of the force interaction between the primary part PT and secondary part ST, so that the power ripple decreases, especially in the de-energized state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

L'objectif de l'invention est de réduire l'ondulation de force d'un moteur synchrone linéaire triphasé cylindrique à aimants permanents (M) sur la partie secondaire (ST) en marche à vide et en régime nominal. A cet effet, trois mesures sont mises en oeuvre. Premièrement, le rapport entre le pas dentaire (Tn) et le pas polaire (Tp) est fixé à 8/15. Deuxièmement, les trois phases u, v, w sont affectées aux bobines selon le schéma suivant : u+, w-, u-, w+, u+, v+, u-, v-, u+, v+, w+, v-, w-, v+, w+, les signes + et - représentant le sens d'enroulement de la bobine respective. Troisièmement, une plaque d'extrémité (H1, H2) peut être placée éventuellement sur les faces frontales de la partie primaire (PT). Cette plaque réduit l'ondulation de force générée par la zone frontale de la partie primaire (PT).
PCT/EP2006/061909 2005-04-29 2006-04-28 Systeme d'entrainement lineaire triphase presentant une ondulation de force reduite WO2006117335A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005020504A DE102005020504A1 (de) 2005-04-29 2005-04-29 Drelphasenlinearantrieb mit reduzierter Kraftwelligkeit
DE102005020504.6 2005-04-29

Publications (1)

Publication Number Publication Date
WO2006117335A1 true WO2006117335A1 (fr) 2006-11-09

Family

ID=36889093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/061909 WO2006117335A1 (fr) 2005-04-29 2006-04-28 Systeme d'entrainement lineaire triphase presentant une ondulation de force reduite

Country Status (2)

Country Link
DE (1) DE102005020504A1 (fr)
WO (1) WO2006117335A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149971A1 (fr) 2008-07-29 2010-02-03 Siemens Aktiengesellschaft Dispositif d'entraînement linéaire rotatif doté d'un élément stabilisant le rotor légèrement magnétique
CN101795048A (zh) * 2010-03-04 2010-08-04 哈尔滨工业大学 高推力密度圆筒形永磁直线电机
US8083815B2 (en) 2008-12-22 2011-12-27 Shell Oil Company Process to prepare methanol and/or dimethylether
CN102780375A (zh) * 2011-05-13 2012-11-14 西门子公司 具有小定位力的圆柱形直线电动机
US20140292110A1 (en) * 2013-03-26 2014-10-02 Sanyo Denki Co., Ltd. Linear motor
EP3076532A4 (fr) * 2014-03-12 2017-07-26 National Institute of Technology Moteur linéaire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001997B4 (de) 2010-02-16 2016-07-28 Siemens Aktiengesellschaft Linearmotor mit verminderter Kraftwelligkeit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295718A2 (fr) * 1987-06-19 1988-12-21 Sanyo Electric Co., Ltd. Procédé pour le bobinage d'un moteur avec dents d'induit et aimant de champ
US6329728B1 (en) * 1999-03-09 2001-12-11 Sanyo Denki Co., Ltd. Cylinder-type linear synchronous motor
EP1263122A1 (fr) * 2001-05-30 2002-12-04 Bayerische Motoren Werke Aktiengesellschaft Entrainement lineaire à symétrie rotative avec un ensemble actionneur double-face
US6713899B1 (en) * 1998-06-29 2004-03-30 Siemens Aktiengesellschaft Linear synchronous motor
DE10335793A1 (de) * 2003-08-05 2005-03-10 Praetec Praez Stechnik Gmbh Mehrphasiger, vielpoliger Linear- oder Rotationssynchronmotor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1198791A (ja) * 1997-09-16 1999-04-09 Mitsubishi Heavy Ind Ltd ブラシレスｄｃモータ
DE10118420B4 (de) * 2001-04-12 2004-04-22 Karl Hehl Antriebseinheit für eine Maschine
TW578684U (en) * 2002-10-09 2004-03-01 Ind Tech Res Inst Electromagnetic type coaxial driving injecting device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295718A2 (fr) * 1987-06-19 1988-12-21 Sanyo Electric Co., Ltd. Procédé pour le bobinage d'un moteur avec dents d'induit et aimant de champ
US6713899B1 (en) * 1998-06-29 2004-03-30 Siemens Aktiengesellschaft Linear synchronous motor
US6329728B1 (en) * 1999-03-09 2001-12-11 Sanyo Denki Co., Ltd. Cylinder-type linear synchronous motor
EP1263122A1 (fr) * 2001-05-30 2002-12-04 Bayerische Motoren Werke Aktiengesellschaft Entrainement lineaire à symétrie rotative avec un ensemble actionneur double-face
DE10335793A1 (de) * 2003-08-05 2005-03-10 Praetec Praez Stechnik Gmbh Mehrphasiger, vielpoliger Linear- oder Rotationssynchronmotor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2149971A1 (fr) 2008-07-29 2010-02-03 Siemens Aktiengesellschaft Dispositif d'entraînement linéaire rotatif doté d'un élément stabilisant le rotor légèrement magnétique
US8083815B2 (en) 2008-12-22 2011-12-27 Shell Oil Company Process to prepare methanol and/or dimethylether
CN101795048A (zh) * 2010-03-04 2010-08-04 哈尔滨工业大学 高推力密度圆筒形永磁直线电机
CN101795048B (zh) * 2010-03-04 2011-08-24 哈尔滨工业大学 高推力密度圆筒形永磁直线电机
CN102780375A (zh) * 2011-05-13 2012-11-14 西门子公司 具有小定位力的圆柱形直线电动机
US20130127265A1 (en) * 2011-05-13 2013-05-23 Siemens Aktiengesellschaft Cylindrical linear motor having low cogging forces
US8853894B2 (en) * 2011-05-13 2014-10-07 Siemens Aktiengesellschaft Cylindrical linear motor having low cogging forces
US20140292110A1 (en) * 2013-03-26 2014-10-02 Sanyo Denki Co., Ltd. Linear motor
EP3076532A4 (fr) * 2014-03-12 2017-07-26 National Institute of Technology Moteur linéaire
US10224775B2 (en) 2014-03-12 2019-03-05 National Institute of Technology Linear motor having coils through which a three-phase alternating current passes

Also Published As

Publication number Publication date
DE102005020504A1 (de) 2006-11-16

Similar Documents

Publication Publication Date Title
DE69636773T2 (de) Bürstenloser gleichstrommotor mit minimalisierten netto-radialkräften und niedrigem pulsierendem drehmoment
EP0677914B1 (fr) Machine à flux transversal
EP0691727B1 (fr) Moteur électrique excité par l'utilisation d'aimants permanents, notamment pour un moteur à rotor intérieur ou à rotor extérieur
DE10153750A1 (de) Rotor für PM-Synchronmaschine
WO2006117335A1 (fr) Systeme d'entrainement lineaire triphase presentant une ondulation de force reduite
EP2073352A1 (fr) Machine synchrone à excitation permanente dotée d'aimants à coque
DE102009045101A1 (de) Elektrische Maschine mit minimiertem Rastmoment
DE3710658A1 (de) Elektronisch kommutierter, kollektorloser gleichstrommotor
WO2003085802A1 (fr) Machine electrique, notamment moteur excite par aimant permanent
EP2073351A1 (fr) Elément secondaire d'un entraînement linéaire
DE112016006772T5 (de) Elektromotor und Klimaanlage
DE102011116396A1 (de) Elektromotor
DE4126137A1 (de) Motor mit einem drehmagnet
DE102016120374A1 (de) Ständer und bürstenloser Gleichstrommotor mit demselben
DE102009029065A1 (de) Elektrische Maschine mit reduziertem Rastmoment, insbesondere permanentmagneterregte Synchronmaschine
DE102019126373A1 (de) Rotorkern
DE2331801C2 (de) Synchronmaschine
DE202018006077U1 (de) Rotoreinheit und Elektromotor
DE102019205993A1 (de) Schutzhülse für einen Rotor einer elektrischen Maschine sowie eine Rotoranordnung und eine elektrische Maschine
EP3457529B1 (fr) Moteur à induit en disque
DE102011118398A1 (de) Rotor für eine elektrische Maschine
DE19539583A1 (de) Elektromotor mit einem permanentmagnetischen Rotor
DE202018006075U1 (de) Rotoreinheit und Elektromotor
EP0836759A1 (fr) Moteur a flux transversal a aimant permanent et procede de fabrication correspondant
EP2871752B1 (fr) Rotor d'une machine synchrone rotative à excitation permanente

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

NENP Non-entry into the national phase

Ref country code: RU

WWW Wipo information: withdrawn in national office

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 06763061

Country of ref document: EP

Kind code of ref document: A1