EP0253298B1 - Transformateur de haute puissance - Google Patents

Transformateur de haute puissance Download PDF

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Publication number
EP0253298B1
EP0253298B1 EP87109879A EP87109879A EP0253298B1 EP 0253298 B1 EP0253298 B1 EP 0253298B1 EP 87109879 A EP87109879 A EP 87109879A EP 87109879 A EP87109879 A EP 87109879A EP 0253298 B1 EP0253298 B1 EP 0253298B1
Authority
EP
European Patent Office
Prior art keywords
another
secondary winding
conductors
stranded
capacity 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.)
Expired - Lifetime
Application number
EP87109879A
Other languages
German (de)
English (en)
Other versions
EP0253298A1 (fr
Inventor
Horst Dipl.-Ing. Morgott
Edmund Dipl.-Ing. Pötsch
Erich Dipl.-Ing. Schmidtner
Hans-Hasso Dipl.-Ing. Görcke
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to AT87109879T priority Critical patent/ATE62561T1/de
Publication of EP0253298A1 publication Critical patent/EP0253298A1/fr
Application granted granted Critical
Publication of EP0253298B1 publication Critical patent/EP0253298B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
    • H01B7/303—Conductors comprising interwire insulation

Definitions

  • the invention relates to a high-performance transformer according to the preamble of patent claim 1.
  • Winding conductors for such transformers are known from European patent application EP-A 0133220 and French patent FR-PS 1198126.
  • the object of the invention is therefore to improve the efficiency with regard to frequency and current behavior in a high-power transformer of the type mentioned.
  • This measure also reduces the eddy current losses in the transformer to a minimum, since the differences in current densities within a single conductor are relatively small.
  • each individual conductor occupies every layer in the overall cross-section of the strand just as often and for as long as any other individual conductor.
  • the parallel strands of the secondary winding enable exact current balancing, which is necessary for a distribution of the current, e.g. on a number of diodes connected in parallel is a requirement.
  • FIG. 1 schematically shows a high-performance transformer U, the secondary winding SW of which consists of one turn with six strands ST1 to ST6 connected in parallel. At one end of the secondary winding SW, all strands ST1 to ST6 are connected to a collection point SA. At the other end of the secondary winding SW, each phase is connected to a rectifier diode GD1 to GD6. The six freewheeling diodes FD1 to FD6 connected in parallel connect the collection point SA to the outputs of the rectifier diodes GD1 to GD6.
  • the high-frequency currents in the secondary circuit between the freewheeling diodes FD1 to FD6 and the rectifier diodes GD1 to GD6 cause, due to the design of the secondary winding SW according to the invention, only extremely low losses, which result in a low temperature (for example below 80 ° C.) of the high-power transformer U and one bring high efficiency (eg over 96% at 600 amps).
  • the primary winding PW and the secondary winding SW consisting of a single turn lie between the base and cover parts BD consisting of ferrite material, each with E-shaped profiles.
  • the internal primary winding PW is composed of a number of turns wound around the central web M of the respective E-shaped base and cover parts BD with the strand according to the invention.
  • the single turn of the secondary winding SW hugs the structure of the primary winding PW in a U-shape. This ensures the best possible coupling even with a very high gear ratio.
  • the secondary winding SW consists of six strands ST1 to ST6 lying parallel to one another in one plane, which in turn are each formed from four strands L1 to L4 lying parallel to one another.
  • the strands L1 to L4 in turn are designed as a woven copper tape B with a rectangular cross section and contain a large number of electrically insulated individual conductors E which are twisted or intertwined with one another.
  • the cross section of the individual strands ST1 to ST6 is thus also rectangular, which results in a band-shaped secondary winding SW.
  • the six strands ST1 to ST6 are arranged in steps with increasing length in order to keep the connecting lines to rectifier diodes D1 to D6 in a row as short as possible.
  • a flange F for connection to the collection point SA provided that electrically and mechanically connects the six strands ST1 to ST6 and thus also all individual conductors E of all strands L to one another.
  • the individual conductors E of the respective strings ST1 to ST6 are electrically and mechanically connected to one another with the aid of a cable lug KS1 to KS6.
  • shrink tubes (not shown here) can be used, which are each pulled over one strand.
  • the configuration of the primary winding as a strand with individual conductors E insulated from one another makes it possible to use a single conductor of the strand as the demagnetization winding of the high-power transformer. This has the advantage of a good coupling and circuit simplifications. However, it would be advisable to provide a single conductor of the strand with a surface color that makes it distinguishable from the other individual conductors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Waveguide Aerials (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (6)

  1. Transformateur de grande puissance (Ü) pour des alimentations en courant cadencées, comportant au moins un enroulement primaire (PW) et au moins un enroulement secondaire (SW), dont les spires respectives sont réalisées sous la forme de cordons (L) qui sont constitués pour leur part par des conducteurs individuels en forme de fils (E), qui possèdent respectivement une surface électriquement isolante et sont torsadés ou entrelacés entre eux et sont reliés respectivement électriquement entre eux aux deux extrémités du cordon (L), caractérisé par le fait
    que l'enroulement secondaire (SW) est constitué par plusieurs brins (ST) parallèles entre eux, qui sont formés pour leur part par plusieurs cordons (L) parallèles entre eux, que les cordons (L) d'un brin respectif (ST) sont reliés électriquement et mécaniquement entre eux aux deux extrémités,
    que les brins (ST) sont reliés électriquement et mécanique-ment entre eux au niveau d'une extrémité de l'enroulement secondaire (SW), et
    que les brins (ST) sont reliés électriquement entre eux, à l'autre extrémité de l'enroulement secondaire (sw), par l'intermédiaire d'éléments redresseurs respectifs (GD).
  2. Transformateur de grande puissance suivant la revendication 1, caractérisé par le fait que les cordons (L) des brins (ST) possèdent respectivement une section transversale sale rectangulaire et que l'enroulement secondaire (sw) est réalisé sous la forme d'une bande (B) repliée en forme de U, comportant des brins (ST) superposés dans des plans parallèles.
  3. Transformateur de grande puissance suivant l'une des revendications précédentes, caractérisé par le fait que les spires de l'enroulement primaire (PW) et de l'enroulement secondaire (SW) sont constituées par des cordons (L) possédant de préférence des dimensions identiques.
  4. Transformateur de grande puissance suivant l'une des revendications précédentes, caractérisé par le fait que, dans le cas d'une longueur différente des brins (ST), pour la compensation des différences de résistance qui apparaissent de ce fait, les cordons (L) contiennent des nombres différents de conducteurs individuels (E).
  5. Transformateur de grande puissance suivant l'une des revendications précédentes, caractérisé par le fait qu'au moins un conducteur individuel des cordons (L) utilisés en tant qu'enroulement primaire (PW) possède une couleur superficielle qui diffère de celle des autres conducteurs individuels.
  6. Transformateur de grande puissance suivant l'une des revendications précédentes, caractérisé par le fait que le cordon (L) est réalisé sous la forme d'une bande de tissu en cuivre.
EP87109879A 1986-07-10 1987-07-08 Transformateur de haute puissance Expired - Lifetime EP0253298B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87109879T ATE62561T1 (de) 1986-07-10 1987-07-08 Hochleistungsuebertrager.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3623290 1986-07-10
DE3623290 1986-07-10

Publications (2)

Publication Number Publication Date
EP0253298A1 EP0253298A1 (fr) 1988-01-20
EP0253298B1 true EP0253298B1 (fr) 1991-04-10

Family

ID=6304875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109879A Expired - Lifetime EP0253298B1 (fr) 1986-07-10 1987-07-08 Transformateur de haute puissance

Country Status (6)

Country Link
US (1) US4829417A (fr)
EP (1) EP0253298B1 (fr)
AT (1) ATE62561T1 (fr)
DE (1) DE3769223D1 (fr)
ES (1) ES2021306B3 (fr)
GR (1) GR3001865T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL139714A0 (en) * 2000-11-15 2002-02-10 Payton Planar Magnetics Ltd A bobbin for hybrid coils in planar magnetic components
US7976333B2 (en) * 2009-09-29 2011-07-12 Flex-Cable Laminar electrical connector

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US587764A (en) * 1897-08-10 Wire for armature-windings
US851467A (en) * 1907-01-02 1907-04-23 Frank W Wood Means for preventing sparking.
US1213689A (en) * 1914-04-24 1917-01-23 George K Woodworth Inductance-coil.
US2187213A (en) * 1937-06-01 1940-01-16 Milliken Humphreys Electric power cable
FR1198126A (fr) * 1958-06-02 1959-12-04 Acec Conducteur de bobinage pour transformateurs cuirassés-imbriqués
NL296248A (fr) * 1962-08-09
GB1156133A (en) * 1966-04-22 1969-06-25 Parsons C A & Co Ltd Improvements in and relating to Insulated Electrical Conductors
DE6909855U (de) * 1969-03-12 1969-07-03 Felten & Guilleaume Kabelwerk Elektrischer wiederkehrleiter, insbesondere fuer elektrische starkstrom- oder hochspannungskabel
US3747205A (en) * 1971-10-08 1973-07-24 Westinghouse Electric Corp Method of constructing a continuously transposed transformer coil
CA1208324A (fr) * 1981-08-13 1986-07-22 Daniel D.A. Perco Cable composite a conducteurs multibrin
DE3205650C2 (de) * 1982-02-17 1986-04-24 Siemens AG, 1000 Berlin und 8000 München Leistungsgleichrichteranordnung
US4538024A (en) * 1983-07-01 1985-08-27 Amp Incorporated Flat multiconductor cable extruded on a wheel
EP0133220A3 (fr) * 1983-07-22 1986-02-12 Kabel- und Lackdrahtfabriken GmbH Conducteur électrique
FR2565399B1 (fr) * 1984-05-29 1987-09-11 Bull Sems Transformateur a fort couplage primaire-secondaire

Also Published As

Publication number Publication date
DE3769223D1 (de) 1991-05-16
US4829417A (en) 1989-05-09
GR3001865T3 (en) 1992-11-23
ATE62561T1 (de) 1991-04-15
ES2021306B3 (es) 1991-11-01
EP0253298A1 (fr) 1988-01-20

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