EP2463871A1 - Noyau de transformateur amorphe - Google Patents

Noyau de transformateur amorphe Download PDF

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Publication number
EP2463871A1
EP2463871A1 EP10193977A EP10193977A EP2463871A1 EP 2463871 A1 EP2463871 A1 EP 2463871A1 EP 10193977 A EP10193977 A EP 10193977A EP 10193977 A EP10193977 A EP 10193977A EP 2463871 A1 EP2463871 A1 EP 2463871A1
Authority
EP
European Patent Office
Prior art keywords
transformer core
amorphous
core
heat
amorphous transformer
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.)
Granted
Application number
EP10193977A
Other languages
German (de)
English (en)
Other versions
EP2463871B1 (fr
Inventor
Martin Carlen
Marcos Bockholt
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 Schweiz AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP10193977.5A priority Critical patent/EP2463871B1/fr
Priority to US13/311,104 priority patent/US9041501B2/en
Priority to BRPI1105631-2A priority patent/BRPI1105631A2/pt
Priority to CN2011104210861A priority patent/CN102543372A/zh
Publication of EP2463871A1 publication Critical patent/EP2463871A1/fr
Application granted granted Critical
Publication of EP2463871B1 publication Critical patent/EP2463871B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/22—Cooling by heat conduction through solid or powdered fillings
    • 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
    • H01F27/25—Magnetic cores made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons

Definitions

  • the invention relates to an amorphous transformer core comprising at least one transformer core disk having a plurality of layers of a ribbon-like amorphous core material arranged concentrically around at least one winding window.
  • amorphous materials require new constructions and processing because, on the one hand, because of the lower flux density compared to a conventional transformer core, larger core cross-sections are required and, on the other hand, an amorphous core material is more sensitive to higher temperatures than a grain-oriented core sheet.
  • transformer cores are made of a thin amorphous strip material, which in a plurality of layers, for example some a thousand, is arranged concentrically around one or even around several winding windows, wherein a sheet usually covers a position, ie a circumferential angle of about 360 °, wherein, if necessary, a slight overlap is realized.
  • a support structure is usually required, by which the core structure is stabilized.
  • the amorphous material usually available as a flat strip material is mechanically very sensitive. The available widths of the strip material are limited, for example to 200mm. The mechanically realizable sizes of a transformer core are thus limited. Therefore, to realize larger amorphous transformer cores, a plurality of congruent transformer core disks whose width is limited by the width of the available tape material may be juxtaposed and interconnected.
  • the basic idea of the invention is to produce a heat accumulation which arises in the interior of an amorphous transformer core, which leads there to an undesired increase in temperature with a concomitant deterioration of the material properties, into the interior of the core dissipate introduced ontoableitbleche outward.
  • the politiciansableitbleche are made of a material with high thermal conductivity, which is higher in any case than that of the amorphous strip material.
  • the core cross-section can be carried out advantageously lower.
  • Heat sinks are due to the construction of an amorphous transformer core of a multi-layered thin amorphous ribbon material with a limited width during its production particularly well in the interior of the transformer core to bring because it is not constructed quasi-monolithic as a standard transformer transformer core.
  • At least one end of such a Cyprusableitbleches is guided to a, preferably near the core, heat exchanger area.
  • a heat exchanger area This is ideally designed such that the highest possible surface is provided for heat exchange, for example by a cooling rib-like design.
  • the heat is transferred from the heat exchanger area to the environment by means of natural convection.
  • a forced cooling is conceivable.
  • the at least one heat dissipation sheet at least partially disposed between two adjacent layers of the ribbon-like amorphous core material and led out of at least one side surface of the amorphous transformer core or the amorphous transformer core.
  • An amorphous transformer core is usually prefabricated from a plurality of layers of amorphous ribbon-like core material. This is to open in the manufacture of a transformer to arrange the transformer windings on formed from the strip material core legs.
  • an amorphous core sheet usually comprises a 360 ° rotation.
  • the joints of the respective sheets are usually provided in one of the formed yokes, which also represents the respective opening point.
  • the latter comprises at least two transformer core disks arranged parallel to one another and at least approximately congruent to one another, at least one heat dissipation sheet being arranged at least in sections between the adjacent transformer core disks.
  • Transformer cores for higher power ratings for example, in the range of 1 MVA and also significantly higher, are usually composed of several core disks due to the limited width of the available ribbon-like amorphous core material.
  • the cooling problem and in particular an inhomogeneous temperature distribution are of particular importance here.
  • heat sinks are disposed between two respective leg-like regions of adjacent transformer core disks.
  • the transformer is arranged with the core in later operation.
  • the core disks are arranged vertically, so that the interposed nickelableitbleche perpendicular and in a open above the transformer provided heat exchange zone.
  • a transformer but also with lying amorphous core can be arranged.
  • the amorphous transformer core in a further embodiment possibility of the amorphous transformer core according to the invention, this is mechanically stabilized by the at least one heat dissipation plate arranged between the congruently adjacent transformer core disks.
  • the heat conduction has a certain thickness, for example 1mm to 15mm, depending on the size and weight of the amorphous transformer core.
  • Conventional réelleableitbleche can also be quite in the range of a thickness of 0.5mm and below.
  • a plurality of adjacent at least partially arranged are provided.
  • the use of several politiciansableitbleche allows on the one hand their homogeneous distribution as possible within the amorphous transformer core, which also a further homogenized temperature distribution is achieved during operation.
  • these sheets are to lead to a common heat exchange region above the transformer core, for which, in particular in the presence of multiple transformer core disks the area between the core discs offers that runs vertically upwards. In order to form a compact as possible strand, within which the heat dissipation plates are guided upwards, they are therefore to be guided parallel to each other.
  • a common heat exchange region permits, in particular, simple forced cooling, for example by means of a blower or a heat exchanger.
  • a single device is enough to cool the single heat exchange area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformer Cooling (AREA)
  • Coils Or Transformers For Communication (AREA)
EP10193977.5A 2010-12-07 2010-12-07 Noyau de transformateur amorphe Not-in-force EP2463871B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10193977.5A EP2463871B1 (fr) 2010-12-07 2010-12-07 Noyau de transformateur amorphe
US13/311,104 US9041501B2 (en) 2010-12-07 2011-12-05 Amorphous transformer core
BRPI1105631-2A BRPI1105631A2 (pt) 2010-12-07 2011-12-06 nécleo de transformador amorfo
CN2011104210861A CN102543372A (zh) 2010-12-07 2011-12-06 非晶体变压器芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10193977.5A EP2463871B1 (fr) 2010-12-07 2010-12-07 Noyau de transformateur amorphe

Publications (2)

Publication Number Publication Date
EP2463871A1 true EP2463871A1 (fr) 2012-06-13
EP2463871B1 EP2463871B1 (fr) 2017-06-14

Family

ID=44022962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10193977.5A Not-in-force EP2463871B1 (fr) 2010-12-07 2010-12-07 Noyau de transformateur amorphe

Country Status (4)

Country Link
US (1) US9041501B2 (fr)
EP (1) EP2463871B1 (fr)
CN (1) CN102543372A (fr)
BR (1) BRPI1105631A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105120A1 (de) * 2013-05-17 2014-11-20 Reo Inductive Components Ag Elektrische und induktive Bauteile
EP2916333A1 (fr) * 2014-03-03 2015-09-09 ABB Technology AG Noyau de transformateur amorphe
EP2977996A1 (fr) * 2014-07-21 2016-01-27 Siemens Aktiengesellschaft Transducteur d'un convertisseur
FR3045923A1 (fr) * 2015-12-17 2017-06-23 Commissariat Energie Atomique Noyaux d'inductance monolithique integrant un drain thermique

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9853694B2 (en) * 2012-03-30 2017-12-26 Analogic Corporation Contactless communication signal transfer
CN103714938A (zh) * 2012-10-02 2014-04-09 捷通国际有限公司 磁通量导向器组件
US20140262499A1 (en) * 2013-03-14 2014-09-18 Boulder Wind Power, Inc. Methods and apparatus for optimizing electrically inoperative zones on laminated composite assemblies
US9793775B2 (en) 2013-12-31 2017-10-17 Boulder Wind Power, Inc. Methods and apparatus for reducing machine winding circulating current losses
JP6871731B2 (ja) * 2016-12-14 2021-05-12 東芝産業機器システム株式会社 変圧器
JP6517882B2 (ja) * 2017-07-04 2019-05-22 ファナック株式会社 コア本体およびリアクトル
EP3608925A1 (fr) * 2018-08-08 2020-02-12 Rohde & Schwarz GmbH & Co. KG Noyau magnétique, procédé de fabrication d'un noyau magnétique et balun doté d'un noyau magnétique
CN109494049A (zh) * 2018-12-15 2019-03-19 泰州市天力铁芯制造有限公司 一种高效散热的变压器铁芯架
CN114334385B (zh) * 2022-01-06 2024-07-02 清华大学 一种基于非晶磁芯的兆瓦级中频壳式隔离变压器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182116A (ja) * 1984-02-28 1985-09-17 Toshiba Corp 巻鉄心の製造方法
WO1994015346A1 (fr) * 1992-12-18 1994-07-07 Alliedsignal, Inc. Tores magnetiques refroidis par air
WO2004112064A1 (fr) * 2003-06-10 2004-12-23 Schaffner Emv Ag Noyau magnetique et dispositif presentant des capacites de refroidissement
EP2251875A1 (fr) * 2009-05-16 2010-11-17 ABB Technology AG Noyau de transformateur

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US3183461A (en) * 1962-02-05 1965-05-11 Westinghouse Electric Corp Magnetic core structure with cooling passages therein
US3810303A (en) * 1969-05-15 1974-05-14 J Hoell Method of making electrical transformer means
JPS5793510A (en) * 1980-12-03 1982-06-10 Hitachi Ltd Iron core for transformer
JPS6184007A (ja) * 1984-10-02 1986-04-28 Toshiba Corp 電磁誘導機器鉄心
JPH03124007A (ja) * 1989-10-06 1991-05-27 Furukawa Electric Co Ltd:The トランス又はチョークコイルの放熱構造
US7057489B2 (en) * 1997-08-21 2006-06-06 Metglas, Inc. Segmented transformer core
JP3279521B2 (ja) * 1998-02-28 2002-04-30 三星電子株式会社 放熱構造を有する電子レンジの高圧トランスフォ−マ
JP4052436B2 (ja) * 2002-03-19 2008-02-27 株式会社ダイフク 複合コア非線形リアクトルおよび誘導受電回路
US6844802B2 (en) * 2003-06-18 2005-01-18 Advanced Energy Industries, Inc. Parallel core electromagnetic device
CN101228598A (zh) * 2005-07-25 2008-07-23 皇家飞利浦电子股份有限公司 具有改进的传热性能的混合线圈

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182116A (ja) * 1984-02-28 1985-09-17 Toshiba Corp 巻鉄心の製造方法
WO1994015346A1 (fr) * 1992-12-18 1994-07-07 Alliedsignal, Inc. Tores magnetiques refroidis par air
WO2004112064A1 (fr) * 2003-06-10 2004-12-23 Schaffner Emv Ag Noyau magnetique et dispositif presentant des capacites de refroidissement
EP2251875A1 (fr) * 2009-05-16 2010-11-17 ABB Technology AG Noyau de transformateur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"CONDUCTION COOLED FERRITE CORE IN A HIGH POWER TRANSFORMER", IBM TECHNICAL DISCLOSURE BULLETIN, INTERNATIONAL BUSINESS MACHINES CORP. (THORNWOOD), US, vol. 36, no. 9B, 1 September 1993 (1993-09-01), pages 325/326, XP000397170, ISSN: 0018-8689 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105120A1 (de) * 2013-05-17 2014-11-20 Reo Inductive Components Ag Elektrische und induktive Bauteile
DE102013105120B4 (de) * 2013-05-17 2019-09-26 Reo Inductive Components Ag Elektrische und induktive Bauteile
EP2916333A1 (fr) * 2014-03-03 2015-09-09 ABB Technology AG Noyau de transformateur amorphe
EP2977996A1 (fr) * 2014-07-21 2016-01-27 Siemens Aktiengesellschaft Transducteur d'un convertisseur
FR3045923A1 (fr) * 2015-12-17 2017-06-23 Commissariat Energie Atomique Noyaux d'inductance monolithique integrant un drain thermique

Also Published As

Publication number Publication date
CN102543372A (zh) 2012-07-04
BRPI1105631A2 (pt) 2013-04-16
US20120139682A1 (en) 2012-06-07
EP2463871B1 (fr) 2017-06-14
US9041501B2 (en) 2015-05-26

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