EP2277183B1 - Noyau toroïdal modulaire - Google Patents

Noyau toroïdal modulaire Download PDF

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Publication number
EP2277183B1
EP2277183B1 EP08758487A EP08758487A EP2277183B1 EP 2277183 B1 EP2277183 B1 EP 2277183B1 EP 08758487 A EP08758487 A EP 08758487A EP 08758487 A EP08758487 A EP 08758487A EP 2277183 B1 EP2277183 B1 EP 2277183B1
Authority
EP
European Patent Office
Prior art keywords
ring
winding
core
modules
module
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.)
Not-in-force
Application number
EP08758487A
Other languages
German (de)
English (en)
Other versions
EP2277183A1 (fr
Inventor
Charles W. Johnson
Jan Leander
Karel Bilek
Benjamin Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Technology AG
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ABB Technology AG
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Publication date
Application filed by ABB Technology AG filed Critical ABB Technology AG
Publication of EP2277183A1 publication Critical patent/EP2277183A1/fr
Application granted granted Critical
Publication of EP2277183B1 publication Critical patent/EP2277183B1/fr
Not-in-force legal-status Critical Current
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support

Definitions

  • the invention relates to a toroidal core for a power transformer, wherein the toroidal core extends in the form of a closed torus-like structure about an imaginary central axis and wherein this is formed from a plurality of adjacent layers of sheet metal.
  • the invention also relates to an arrangement of a plurality of toroidal cores with winding modules.
  • a 3-phase power transformer usually has at least one primary and one secondary winding for each phase, so that a total of at least 6 individual windings result.
  • 3-phase power transformers are known in which all windings are arranged around a common transformer core having a plurality of legs, wherein one leg is then wrapped, for example, each of a primary and a secondary winding of a phase.
  • 3-phase power transformers which are formed by suitable electrical interconnection of three single-phase transformers in which the primary and secondary windings are each a phase wrapped around a separate annular transformer core.
  • the single-phase primary and / or secondary winding also in the form of several separate winding segments, for example along a circular path, wherein all winding segments are penetrated by the annular core, as for example in the European patent specification EP 0 557 549 B1 described.
  • a disadvantage of the prior art described there is in particular that the arrangement does not allow a modular exchange of winding segments of such a ready assembled transformer, without also further winding segments also at least temporarily remove from the transformer core.
  • the ring core according to the invention is characterized in that it is formed along the torus-like structure of at least three mutually connectable and detachable core section modules and that the connection of the core section modules is provided by toothing individual sheet metal layers or sheet metal layer areas.
  • the modular design of a ring core according to the invention of at least three, preferably identical, core section modules, which are also detachable from each other, allows selective disassembly of the individual transformer components, such as winding modules or winding segments, switches are arranged along the ring core and are penetrated by this. The maintenance effort when replacing a winding module is thereby reduced in an advantageous manner.
  • the detachable connection of the individual core section modules takes place according to the invention by toothing and / or overlapping a plurality of sheet metal layers or sheet metal layer areas between adjacent core sections.
  • a sufficient guidance of a magnetic flux in the transition region of adjacent core sections is ensured.
  • this has at least in sections a core cross-section, which is approximated to an ellipse or a circle.
  • a core cross-section which is approximated to an ellipse or a circle.
  • each core section module is assigned exactly one winding module, each having at least one electrical winding.
  • Winding module and core section module are then easily replaced together in a fault, without having to remove another, not faulty winding module from the toroidal core.
  • all winding and core section modules are identical.
  • At least two galvanically separated electrical windings are arranged in a winding module.
  • a core section module is non-positively and / or positively connected to the respective associated winding module, so that this results in a transformer module.
  • the winding modules can be electrically coupled to one another. It is also envisaged that common electrical connections are led out for groups of electrically coupled winding modules.
  • a suitable such electrical coupling for example by a series and / or parallel connection of windings of several winding modules, the functionality of a 1-phase power transformer can be achieved, which can be coupled to the common terminals with an electrical power supply network.
  • the object of the invention is also achieved by an arrangement of toroidal cores with winding modules according to one of claims 3 to 7, wherein the respective toroidal cores with winding modules can be arranged in a common connection structure and can be introduced separately therefrom and non-destructively.
  • connection structure a device is to be considered by means of which at least two ring cores with winding modules or two complete toroidal transformers are mechanically connected to each other.
  • a connection structure may also include electrical conductors and parts of electrical coupling devices, such as plugs, sockets or terminals, using one or more of the windings or winding modules Toroidal transformers are connectable.
  • the electrical connections of a winding or of a winding module expediently have a corresponding counterpart of the coupling device.
  • Power distribution networks are usually constructed in 3-phase.
  • the functionality of a previously described arrangement of inventive ring core with associated and suitably electrically interconnected windings corresponds to the functionality of a 1-phase power transformer.
  • an arrangement and the electrical connection of three single-phase transformers are suitable, which also represents a preferred embodiment of the arrangement according to the invention.
  • a likewise modular arrangement of three already inventively modular ring cores with connected winding modules in a common connection structure (s.o.) Is provided.
  • the effort to exchange a single defective winding module of such a connected arrangement of multiple 1-phase transformers is further simplified.
  • connection structure has devices for the electrical coupling of individual winding modules and / or common electrical connections of the winding modules.
  • Such an electrical connection can be realized for example via a plug connection. The connection of such an arrangement to a power supply network is thereby simplified.
  • At least two toroidal cores with winding modules are arranged axially along a common central axis or also on a common plane transversely to the respective central axis.
  • the construction of the common connection structure is thereby simplified and the space required is reduced.
  • this ring core has 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 core section modules.
  • Fig. 1 shows a first transformer module 10 having a first core section module 11 with associated winding module, wherein the winding modules having a first 14 and a second 16 electrical winding, which are wound around a winding axis.
  • Core section module and winding module are mechanically connected to a transformer module, so that it can be raised or moved as a component.
  • transformer modules 10 are the starting point for a modular transformer core.
  • the structural identity is essential for the interchangeability of the respective transformer modules with each other.
  • a number of 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 core section modules per ring core are suitable.
  • at least 3 core section modules are required, a higher number than 12 is increasingly unfavorable from a constructive point of view, since the respective winding modules turn out to be correspondingly narrower and thus lead to more outlay in production.
  • the manufacturing effort also increases with an excessive number of Kernabitess- or winding modules.
  • Fig. 2 shows a hexagonal ring core with six transformer modules 10, 20, 30, 40, 50, 60, which are arranged in a circular orbit about a central axis 70.
  • transformer module 10 and the five identical other transformer modules 20, 30, 40, 50, 60 are an integral part of the illustrated ring core with winding modules.
  • Each core section module 11 is connected by a suitable connection, for example, a mutual interlocking respectively adjacent core packages forming the core section modules, with further core section modules adjacent to each other.
  • a suitable connection for example, a mutual interlocking respectively adjacent core packages forming the core section modules, with further core section modules adjacent to each other.
  • Such a toothing improves the guiding of the magnetic flux along the extension of the toroidal core, in particular in the connecting regions.
  • further connection mechanisms are provided, which increase the mechanical strength of the connection of adjacent core section modules, for example a screw connection through the toothing region of adjacent core section modules.
  • gaps between the respective core section modules shown in the figure are merely intended to graphically show the boundary area between adjacent core section modules. In a real arrangement, such a gap is not provided, moreover, the sheets, which form the ring core in its main thing, interlocked in the border areas.
  • Fig. 3 shows an arrangement 100 of three ring cores or toroidal transformers in a side view.
  • Each toroidal transformer has six transformer modules in this example, of which only three are visible in this lateral perspective.
  • Each of the illustrated transformer modules 101, 102, 103, 111, 112, 113, 121, 122, 123 each has an identical core section module and a winding module, similar to that in FIG Fig. 1 shown transformer module.
  • the transformer modules 101, 102, 103 are in this illustration the visible part of a first toroidal transformer, which is formed in the main of these three transformer modules and three further located in the rear area imaginary transformer modules.
  • the transformer modules 111, 112, 103 in this illustration are the visible part of a second toroidal transformer and the transformer modules 121, 122, 123 in this illustration the visible part of a third toroidal transformer.
  • All three toroidal transformers are arranged vertically above one another along a common central axis, not shown.
  • insulation blocks 130 are arranged, which remove the load of each located above toroidal transformers down. These preferably have an electrical insulation capability and also have vibration-damping properties.
  • the insulation blocks 130 are here to be regarded as part of a common connection structure of the three toroidal transformers. In this way, moreover, the operating noise of such an arrangement can be reduced.
  • the third toroidal transformer could be slightly raised with a first mobile lifting device and the second toroidal transformer could be removed from the connecting structure with a second mobile lifting device.
  • the electrical connections of the second toroidal transformer which are preferably designed as easily detachable connections such as a connector to solve.
  • the electrical connections of the transformer module 112 to be exchanged with the other transformer modules of the same toroidal transformer are also to be solved.
  • the respective transformer module 112 is to be removed from the toroidal core, wherein the toroidal core must be located during this process in a safe parking position, so that it is the mechanically separated part of the toroidal core 111, 113 is not damaged.
  • a replacement transformer module of identical design is to be inserted into the separated ring core and to produce the electrical connections of the replacement transformer module with the other modules of the second ring core.
  • the second toroidal transformer is to be returned to the original position within the connection structure, the electrical connections to the first and the third toroidal transformer and the third toroidal transformer with the first mobile lifting device on the insulation blocks 130 set down.
  • a further embodiment according to the invention - not shown in a figure - of a connection structure for a plurality of modular toroidal transformers consists of a shelf-like storage device with several superimposed planes, wherein in each plane a toroidal transformer can be positioned and electrically and mechanically connected to this. A lifting operation of over that toroidal transformer with a transformer module to be replaced further toroidal transformers is eliminated.
  • the levels of the shelf-like storage device, on which a toroidal core is to be positioned with the aid of telescopic rails from the storage device movable. The removal process of a toroidal transformer is thereby further simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Claims (14)

  1. Noyau annulaire pour un transformateur de puissance (18), le noyau annulaire s'étendant sous la forme d'une structure fermée similaire à un tore autour d'un axe central imaginaire (70), celui-ci étant formé par une pluralité de couches de tôle juxtaposées les unes aux autres, caractérisé en ce que le noyau annulaire est formé le long de la structure similaire à un tore par au moins trois modules de portion de noyau (11) reliés entre eux de manière amovible et en ce que le liaison des modules de portion de noyau est prévue au moyen d'une denture des couches de tôle individuelles et/ou des zones de couches de tôle.
  2. Noyau annulaire selon la revendication 1, caractérisé en ce que celui-ci présente au moins dans certaines portions une section transversale de noyau qui est proche d'une ellipse ou d'un cercle.
  3. Noyau annulaire selon la revendication 1 ou 2, caractérisé en ce qu'à chaque module de portion de noyau (11) est associé un module d'enroulement comprenant au moins un enroulement électrique (14, 16).
  4. Noyau annulaire selon la revendication 3, caractérisé en ce qu'au moins deux enroulements électriques (14, 16) isolés galvaniquement l'un de l'autre sont disposés sur le module d'enroulement.
  5. Noyau annulaire selon l'une des revendications 3 ou 4, caractérisé en ce qu'un module de portion de noyau (11) est relié par adhérence et/ou engagement géométrique avec le module d'enroulement associé correspondant et un module transformateur est ainsi formé.
  6. Noyau annulaire selon l'une des revendications 3 à 5, caractérisé en ce les modules d'enroulement peuvent être connectés électriquement entre eux.
  7. Noyau annulaire selon la revendication 6, caractérisé en ce que des bornes électriques communes sont amenées à l'extérieur pour tous les modules d'enroulement.
  8. Arrangement de noyaux annulaires avec des modules d'enroulement (100) selon l'une des revendications 3 à 7, caractérisé en ce que ceux-ci peuvent être disposés dans une structure d'assemblage commune et en ce que chaque noyau annulaire qui y est disposé avec des modules d'enroulement (101-103, 111-113, 121-123) peut être introduit séparément dans la structure d'assemblage et peut en être retiré sans être détruit.
  9. Arrangement selon la revendication 8, caractérisé en ce que la structure d'assemblage présente des dispositifs de connexion électrique des modules d'enroulement individuels et/ou des bornes électriques communes des modules d'enroulement.
  10. Arrangement selon l'une des revendications 8 ou 9, caractérisé en ce que les noyaux annulaires avec les modules d'enroulement (101-103, 111-113, 121-123) sont interconnectés en utilisant la structure d'assemblage en un groupe fonctionnel électrique, lequel présente la fonctionnalité d'un transformateur de puissance triphasé.
  11. Arrangement selon l'une des revendications 8 à 10, caractérisé en ce qu'au moins deux noyaux annulaires avec les modules d'enroulement (101-103, 111-113, 121-123) sont disposés dans le sens axial le long d'un axe central commun (70).
  12. Arrangement selon l'une des revendications 8 à 10, caractérisé en ce qu'au moins deux noyaux annulaires avec les modules d'enroulement (101-103, 111-113, 121-123) sont disposés sur un plan commun transversal par rapport à l'axe central correspondant.
  13. Arrangement selon l'une des revendications 8 à 12, caractérisé en ce que des bornes électriques communes sont amenées à l'extérieur sur la structure d'assemblage pour au moins deux noyaux annulaires avec les modules d'enroulement.
  14. Arrangement selon l'une des revendications précédentes, caractérisé en ce que le nombre de modules de portion de noyau par noyau annulaire est égal à 3, 4, 5, 6, 7, 8, 9, 10, 11 ou 12.
EP08758487A 2008-05-13 2008-05-13 Noyau toroïdal modulaire Not-in-force EP2277183B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/003826 WO2009138101A1 (fr) 2008-05-13 2008-05-13 Noyau toroïdal modulaire

Publications (2)

Publication Number Publication Date
EP2277183A1 EP2277183A1 (fr) 2011-01-26
EP2277183B1 true EP2277183B1 (fr) 2011-09-07

Family

ID=40380660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758487A Not-in-force EP2277183B1 (fr) 2008-05-13 2008-05-13 Noyau toroïdal modulaire

Country Status (7)

Country Link
US (1) US20110273256A1 (fr)
EP (1) EP2277183B1 (fr)
CN (1) CN102027554A (fr)
AT (1) ATE523887T1 (fr)
BR (1) BRPI0822691A2 (fr)
CA (1) CA2723256A1 (fr)
WO (1) WO2009138101A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2709124B1 (fr) * 2012-09-12 2015-01-07 ABB Technology AG Transformateur
US11508509B2 (en) * 2016-05-13 2022-11-22 Enure, Inc. Liquid cooled magnetic element
JP6773811B2 (ja) * 2016-05-13 2020-10-21 プリペル テクノロジーズ，リミティド ライアビリティ カンパニー 液冷式磁気素子
DE102017104138A1 (de) * 2017-02-28 2018-08-30 Christian-Albrechts-Universität Zu Kiel Spannungswandler, Verfahren zu dessen Betrieb und Computerprogramm
CN110870030B (zh) 2017-06-28 2023-03-10 普里派尔技术有限公司 流体冷却式磁性元件
JP6791927B2 (ja) * 2018-10-23 2020-11-25 ファナック株式会社 テーパ状部分を有するコイルを具備する電磁機器
US20200176174A1 (en) 2018-11-29 2020-06-04 Prippell Technologies, Llc Fluid cooled magnetic element
UA128371C2 (uk) * 2021-04-19 2024-06-26 Леонід Адамович Білий Трифазний трансформатор

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Publication number Priority date Publication date Assignee Title
DE965344C (de) * 1941-01-28 1957-06-06 Aeg Magnetischen Zwecken dienender Eisenkern
DE1965818U (de) * 1966-12-05 1967-08-10 Siemens Ag Ringkern bzw. ringartiger vieleckkern oder schenkelkern fuer wandler.
EP0557549B1 (fr) 1992-02-26 1995-08-30 HANSER, Volker Transformateur à noyau annulaire
JPH0828304A (ja) * 1994-07-12 1996-01-30 Toshiba Corp ガスタービンプラント
DE19501082C1 (de) * 1995-01-16 1996-11-14 Siemens Ag Mehrphasiger Transformator
US5923236A (en) * 1996-04-29 1999-07-13 Alliedsignal Inc. Magnetic core-coil assembly for spark ignition system
US6972967B2 (en) * 2003-02-20 2005-12-06 Avaya Technology Group EMC/ESD mitigation module
US20050001709A1 (en) * 2003-07-03 2005-01-06 Pais Martin R. Inductive device and methods for assembling same
WO2005086186A1 (fr) * 2004-02-27 2005-09-15 Buswell Harrie R Dispositifs inductifs toroidaux et procedes de production associes
US7808359B2 (en) * 2005-10-21 2010-10-05 Rao Dantam K Quad-gapped toroidal inductor
JP4751266B2 (ja) * 2006-02-09 2011-08-17 株式会社タムラ製作所 リアクトル部品
WO2007133399A2 (fr) * 2006-05-09 2007-11-22 Spang & Company Ensembles électromagnétiques, segments de noyaux formant de tels ensembles, et leurs procédés de fabrication
US7656266B2 (en) * 2008-01-09 2010-02-02 Chang Kern K N Toroidal star-shaped transformer

Also Published As

Publication number Publication date
WO2009138101A1 (fr) 2009-11-19
CA2723256A1 (fr) 2009-11-19
US20110273256A1 (en) 2011-11-10
ATE523887T1 (de) 2011-09-15
CN102027554A (zh) 2011-04-20
BRPI0822691A2 (pt) 2015-07-07
EP2277183A1 (fr) 2011-01-26

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