WO2002011268A1 - Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes - Google Patents

Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes Download PDF

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Publication number
WO2002011268A1
WO2002011268A1 PCT/IB2000/001154 IB0001154W WO0211268A1 WO 2002011268 A1 WO2002011268 A1 WO 2002011268A1 IB 0001154 W IB0001154 W IB 0001154W WO 0211268 A1 WO0211268 A1 WO 0211268A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
coils
coil
voltage
windings
Prior art date
Application number
PCT/IB2000/001154
Other languages
German (de)
English (en)
Inventor
Heinz Brandes
Wolfgang Golbig
Thomas Hillmer
Holger Klotsche
Germar Müller
Thomas Partzsch
Original Assignee
Von Roll Isola Winding Systems Gmbh
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 Von Roll Isola Winding Systems Gmbh filed Critical Von Roll Isola Winding Systems Gmbh
Priority to EP00949862A priority Critical patent/EP1305867A1/fr
Priority to PCT/IB2000/001154 priority patent/WO2002011268A1/fr
Priority to BR0017296-0A priority patent/BR0017296A/pt
Priority to PL00363773A priority patent/PL363773A1/xx
Priority to AU2000263117A priority patent/AU2000263117A1/en
Publication of WO2002011268A1 publication Critical patent/WO2002011268A1/fr

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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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors

Definitions

  • Windings for electrical machines with conductors made of stranded wire Windings for electrical machines with conductors made of stranded wire.
  • This invention relates to the field of “electrical machines” with the sub-term “windings of electrical machines”.
  • the field of application of the invention is electrical engineering, specifically the production of windings for electrical machines with open slots and rated voltages from 0.2 kV to 15.75 kV and frequencies up to 100 Hz.
  • the winding is the heart of the electrical machine. This winding is available in two basic designs: a) Round wire windings b) Rectangular wire windings
  • windings of such electrical machines are today made from shaped coils with rectangular wires (also called flat wires). Detailed statements on this can be found among others at SEQUENZ, H.: Manufacture of windings for electrical machines, Vienna, Springer-Verlag 1973 from page 107.
  • Form coil windings with flat wires are associated with a high technological effort in their manufacture and are very labor-intensive.
  • the production of the known form coil winding is carried out as follows: a) winding the output spool, the so-called fish spool b) bandaging the fish spool with an auxiliary bandage for spreading c) spreading the fish spool in the spreader to form the spool d) removing the auxiliary bandage e) pre-consolidating the spool slot in a warm coil press f) applying the main insulation by hand or machine g) inserting the insulated coil into the grooves of the laminated core h) switching and stabilizing the winding i) impregnating the winding with impregnating agent and curing it The insulation becomes mechanical when producing molded coil windings highly stressed, with risk of destruction.
  • the invention is based on the task today electrical machines with rated voltages from 0.2 kV to 15.75 kV with open slots to replace conventional form coils with a coil that is easier to manufacture.
  • a stranded wire is a multitude of (possibly fine) copper wires that are stranded and pressed together.
  • the wires themselves are usually not insulated, but the stranded wire, which has a square or rectangular cross section, is provided with an outer insulation.
  • Edgewise and "flat edged” coils consist of strand of rectangular cross-section, whereby in the case of an edgewise coil the windings of strand are bent over the narrower side of the rectangular cross-section, in the case of a flat wound coil they are bent over the wider side ,
  • Coils according to the invention can be of various shapes and widths.
  • the "shape" of a coil is the shape of a cross-sectional area through this coil that is perpendicular to the coil axis.
  • the term "coil axis" itself is known in the art.
  • Examples of coil shapes according to the invention are: a) an essentially rectangular shape, optionally with rounded corners; Coils of this shape are referred to below as “rectangular coils”. The width of such a coil is the distance between these sides measured perpendicular to the two longer sides of the rectangle. b) A shape derived from a rectangle with the shorter sides replaced by semicircular arcs; Coils of this shape are referred to below as "slot-shaped coils". The width of such a coil is the distance between these sides measured perpendicular to the two remaining straight sides.
  • high voltage means a voltage range from 1 kV to 30 kV.
  • a high-voltage range for which the windings according to the invention can preferably be used is approximately 1 kV up to about 15.75 kV and particularly preferably from about 3 kV to about 15.75 kV.
  • the area below 1 kV is considered "low voltage”.
  • a “winding” is an assembly of an electrical equipment, e.g. a rotating electrical machine such as a motor or a generator, which is generally composed of several coils. Several coils of the same or different widths can form a coil group.
  • strands for coils and windings of rotating electrical machines in the rated range from 0.2 to 15.75 kV and / or 0 to 100 Hz is not previously known.
  • strands By using strands, a simpler coil geometry is achieved and the mechanical stress on the insulation of the strands is largely reduced. This improves, among other things also the surge voltage resistance.
  • the winding is easier to manufacture in terms of production technology. Due to the reduced compared to the form coil winding
  • the number of operations reduces the manufacturing time. Due to the design of the switch connections of the strand winding as a press connection, especially for stranded wires with bare individual conductors, the complex switching e.g. through welded joints.
  • Figure 1 shows in variant a) an elevation of a flat-wound elongated hole-shaped coil and in variant b) an elevation of an upright wound elongated coil. hole-shaped coil. The coil axes are perpendicular to the sheet.
  • Figure 2 shows in variant a) a flat-wound
  • FIG. 3 shows the sectional illustration of possible coil shapes of the coils according to the invention with a) windings arranged flat-edged b) windings arranged upright.
  • Figure 4 shows a sectional view of a stator of a motor or generator, in the grooves of which a coil of the winding according to the invention is inserted, which is wound flat.
  • Figure 5 shows a sectional view of a stator of a motor or generator, in the grooves of which a coil of the winding according to the invention is inserted, which is wound upright.
  • multi-stranded wires with square or rectangular cross sections are used as the conductor material.
  • These strands can consist of bare or painted individual conductors.
  • the strand can be used with insulating tapes, e.g. B. foil mica tapes or glass fabric mica tapes, one or more be layered as winding insulation.
  • the insulation thickness determined by the number of layers and overlap, is determined by the winding voltage of the coil.
  • Conventional insulating materials can be used as the main insulation of the coils in the windings according to the invention. Surface voltages are used here for voltages up to 1 kV. Insulation materials containing mica are used for voltages above 1 kV.
  • Known resins and other known impregnating agents with appropriate impregnating technologies can be used for the impregnation.
  • the insulated stranded wire can be wound into a coil shape according to FIG. 1 or 2.
  • FIG. 1 or 2 Various variants are shown in these figures, further variants being possible in the shape.
  • the coils according to the invention can be produced using generally known technologies for the production of coils.
  • a typical process description for the production of the coils according to the invention would be e.g. the above-mentioned method description for the form coil winding, but steps b), c) d) and e) are not mandatory or even unnecessary for the coil according to the invention.
  • Steps b), c) and d) are preferably omitted and the winding of step a) is carried out with the aid of an appropriate template.
  • the coils are wound on appropriate templates, fixed in order to prevent the layers from slipping, and the switching ends are insulated. The main insulation is then applied. Depending on the size of the rated voltage, the entire coil is manually or mechanically with an insulating tape, z. B. glass fabric mica Band, banded. The banding takes place in one or more layers and depends on the stress and dimensioning.
  • a preferred area of application for the coils according to the invention are windings for rotating electrical machines, in particular stator windings (see FIGS. 4 and 5).
  • the windings according to the invention are arranged analogously to the previously known form coil windings with square wires, the windings according to the invention likewise being able to be inserted or fitted into slots 2, 3 which are stamped into the inside of the stator laminate core 4.
  • FIGS. 4 and 5 show how the position of the coil sides 1001, 1002 (with turns made of strands, here not given the corresponding reference numbers for the sake of clarity) is in the slots.
  • the stator laminated core 4 which is interrupted by a wavy line, is intended to indicate that a coil does not necessarily have to lie in adjacent slots 2, 3.
  • the left spool side 1002 lies as the spool top layer 5 or. as a coil pad 6 in the groove.
  • An intermediate layer 7 can be present between the coil top layer 5 and the coil base 6.
  • the coils can be provided with a main insulation 8; the grooves can be closed with slot wedges 9 after insertion.
  • Windings according to the invention can be designed as one- or two-layer windings.
  • the windings of Figures 4 and 5 are two-layer windings.
  • stator windings with conductors made of stranded wire: a) Template winding for coils of the same width with wire. For this type of stencil winding, bobbins with strands according to bobbin shape a) of FIG. 2 are produced, with further variants being possible in the shape according to the technological circumstances.
  • the stranded conductors are arranged according to scheme a) of FIG. 3, the total number of conductors, the number of conductors next to and on top of one another.
  • the coils produced in this way are insulated, preformed and placed in the slots in the stator core, where they receive their final shape, b) Stencil winding for coils of unequal width in one or two layers with strands and conductors flat in the slot.
  • bobbins with strands according to bobbin shape b) of FIG. 1 are produced, with other variants being possible in the shape according to the technological circumstances, e.g. rectangular shape according to coil shape b) of Figure 2).
  • the stranded conductors are arranged according to scheme b) of FIG. 3, the total number of conductors, the number of conductors next to and on top of one another.
  • the coils produced in this way are insulated and can be inserted in this way into the grooves in the stator core.
  • Strand according to coil shape a) from FIG. 1 or coil shape b) of Figure 2, with other variants are possible in the shape according to the technological circumstances.
  • the stranded conductors are arranged according to scheme a) of FIG. 3, the number of conductors as a whole, the number of conductors next to and on top of one another.
  • the coils thus produced are insulated and can be inserted in this way into the grooves in the stator laminated core.
  • a coil When producing a two-layer winding with coils of unequal width, a coil consists of one or more coil groups. This depends on the number of uses and the number of poles of the machine.
  • the winding heads 1003 are stabilized analogously to the form coil winding, i.e. with the help of cord, tapes, felt and swellable glass mats.
  • the switching connections can be made by pressing using press sleeves.
  • the coils can be provided with a slot part and an end glow protection.
  • All impregnation methods can be used for low-voltage windings according to the invention, which are not produced with porous mica tapes, but instead with groove linings made of surface insulating materials, ie
  • the high-voltage windings according to the invention can also be implemented with resin-rich mica tapes as the main insulation according to the known resin-rich process.
  • a simpler coil geometry is achieved through the use of strands. This improves, among other things also the surge voltage resistance.
  • the winding is easier to manufacture in terms of production technology.
  • the production time is reduced due to the reduced number of operations compared to the form coil winding.
  • the execution of the switch connections of the stranded winding as press connections eliminates the time-consuming switching by means of welded connections.
  • the main insulation of the coils can be produced by hand or by machine using previously known methods.
  • a stator for use in a multi-pole electric motor or generator has been fabricated which is designed with an invented two-layer winding according to the invention was provided with coils of unequal widths.
  • the stator lamination stack itself was made from dynamo sheets, as is common in the art.
  • the coil form a) from FIG. 1 was used.
  • the coils had 12 turns, which were arranged according to arrangement a) of Figure 3.
  • the winding consisted of 12 coil groups, each with 4 coils of different widths, the coil with the largest width lying in the first and tenth slot of each partial winding; the coils with a medium width lay in the second and ninth slots of each partial winding, and the coil with the smallest width lay in the third and eighth slots of each partial winding.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

Des enroulements dont les bobines sont réalisées en fils toronnés, autorisent une production simple sous forme d'enroulements à bobines formées classiques avec des fils rectangulaires. Les enroulements selon l'invention conviennent notamment aux machines électriques rotatives à haute ou à basse tension.
PCT/IB2000/001154 2000-08-02 2000-08-02 Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes WO2002011268A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00949862A EP1305867A1 (fr) 2000-08-02 2000-08-02 Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes
PCT/IB2000/001154 WO2002011268A1 (fr) 2000-08-02 2000-08-02 Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes
BR0017296-0A BR0017296A (pt) 2000-08-02 2000-08-02 Enrolamentos para máquinas elétricas com condutores de fio flexìvel trançado
PL00363773A PL363773A1 (en) 2000-08-02 2000-08-02 Windings for electrical machines with conductors consisting of litz wires
AU2000263117A AU2000263117A1 (en) 2000-08-02 2000-08-02 Windings for electrical machines with conductors consisting of litz wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2000/001154 WO2002011268A1 (fr) 2000-08-02 2000-08-02 Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes

Publications (1)

Publication Number Publication Date
WO2002011268A1 true WO2002011268A1 (fr) 2002-02-07

Family

ID=11003963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/001154 WO2002011268A1 (fr) 2000-08-02 2000-08-02 Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes

Country Status (5)

Country Link
EP (1) EP1305867A1 (fr)
AU (1) AU2000263117A1 (fr)
BR (1) BR0017296A (fr)
PL (1) PL363773A1 (fr)
WO (1) WO2002011268A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057730A1 (fr) * 2002-12-20 2004-07-08 Siemens Aktiengesellschaft Machine electrique
WO2004059818A1 (fr) * 2002-12-20 2004-07-15 Siemens Aktiengesellschaft Machine electrique
DE10260314A1 (de) * 2002-12-20 2004-09-02 Siemens Ag Wickelkopfkühlung von elektrischen Maschinen
EP1618646A1 (fr) * 2003-08-05 2006-01-25 INA-Drives & Mechatronics GmbH & Co oHG Moteur synchrone rotatif ou lineaire polyphase, multipolaire et a grande vitesse
CN100442639C (zh) * 2002-12-20 2008-12-10 西门子公司 以绞合线技术制成的用于电机的线圈及该线圈的制造方法
WO2008148680A2 (fr) * 2007-06-04 2008-12-11 Siemens Aktiengesellschaft Moteur haute tension à enroulement sans connexion
DE102009006763A1 (de) 2009-01-30 2010-08-05 Siemens Aktiengesellschaft Spule für eine dynamoelektrische Maschine
DE102009046038A1 (de) 2009-10-27 2011-04-28 Siemens Aktiengesellschaft Spule aus härtbarem, flexiblen Litzenleiter
EP2190103A4 (fr) * 2007-09-14 2016-05-25 Shinetsu Chemical Co Machine tournante sans noyau de type à entrefer axial
EP3089329A1 (fr) 2015-04-27 2016-11-02 Von Roll Schweiz AG Procede de fabrication d'une bobine dentee pour une machine electrique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534082A1 (fr) * 1982-09-30 1984-04-06 Le Proizv Barre de l'enroulement de stator a noyau lisse pour machine electrique
WO1991003855A1 (fr) * 1989-08-28 1991-03-21 Asea Brown Boveri Ab Machine rotative electrique rapide excitee par un aimant permanent
DE4126019A1 (de) * 1990-08-08 1992-02-13 Zahnradfabrik Friedrichshafen Drehfeldmotor
JPH08126275A (ja) * 1994-10-25 1996-05-17 Sawafuji Electric Co Ltd コアレス回転機
WO1997045918A1 (fr) * 1996-05-29 1997-12-04 Asea Brown Boveri Ab Conducteur isole pour enroulements a haute tension et son procede de production
US5723933A (en) * 1994-04-26 1998-03-03 Orto Holding A.G. Electronically commutated DC machine
JPH11346450A (ja) * 1998-06-01 1999-12-14 Fuji Electric Co Ltd 高圧回転機の固定子コイル

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534082A1 (fr) * 1982-09-30 1984-04-06 Le Proizv Barre de l'enroulement de stator a noyau lisse pour machine electrique
WO1991003855A1 (fr) * 1989-08-28 1991-03-21 Asea Brown Boveri Ab Machine rotative electrique rapide excitee par un aimant permanent
DE4126019A1 (de) * 1990-08-08 1992-02-13 Zahnradfabrik Friedrichshafen Drehfeldmotor
US5723933A (en) * 1994-04-26 1998-03-03 Orto Holding A.G. Electronically commutated DC machine
JPH08126275A (ja) * 1994-10-25 1996-05-17 Sawafuji Electric Co Ltd コアレス回転機
WO1997045918A1 (fr) * 1996-05-29 1997-12-04 Asea Brown Boveri Ab Conducteur isole pour enroulements a haute tension et son procede de production
JPH11346450A (ja) * 1998-06-01 1999-12-14 Fuji Electric Co Ltd 高圧回転機の固定子コイル

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057730A1 (fr) * 2002-12-20 2004-07-08 Siemens Aktiengesellschaft Machine electrique
WO2004059818A1 (fr) * 2002-12-20 2004-07-15 Siemens Aktiengesellschaft Machine electrique
DE10260314A1 (de) * 2002-12-20 2004-09-02 Siemens Ag Wickelkopfkühlung von elektrischen Maschinen
CN100442639C (zh) * 2002-12-20 2008-12-10 西门子公司 以绞合线技术制成的用于电机的线圈及该线圈的制造方法
EP1618646A1 (fr) * 2003-08-05 2006-01-25 INA-Drives & Mechatronics GmbH & Co oHG Moteur synchrone rotatif ou lineaire polyphase, multipolaire et a grande vitesse
WO2008148680A2 (fr) * 2007-06-04 2008-12-11 Siemens Aktiengesellschaft Moteur haute tension à enroulement sans connexion
WO2008148680A3 (fr) * 2007-06-04 2009-02-26 Siemens Ag Moteur haute tension à enroulement sans connexion
EP2190103A4 (fr) * 2007-09-14 2016-05-25 Shinetsu Chemical Co Machine tournante sans noyau de type à entrefer axial
DE102009006763A1 (de) 2009-01-30 2010-08-05 Siemens Aktiengesellschaft Spule für eine dynamoelektrische Maschine
DE102009046038A1 (de) 2009-10-27 2011-04-28 Siemens Aktiengesellschaft Spule aus härtbarem, flexiblen Litzenleiter
EP3089329A1 (fr) 2015-04-27 2016-11-02 Von Roll Schweiz AG Procede de fabrication d'une bobine dentee pour une machine electrique
EP3089329B1 (fr) * 2015-04-27 2020-08-12 Von Roll Schweiz AG Procede de fabrication d'une bobine dentee pour une machine electrique

Also Published As

Publication number Publication date
BR0017296A (pt) 2003-06-24
EP1305867A1 (fr) 2003-05-02
AU2000263117A1 (en) 2002-02-13
PL363773A1 (en) 2004-11-29

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