EP0763833B1 - Transformateur pour un véhicule à propulsion électrique - Google Patents

Transformateur pour un véhicule à propulsion électrique Download PDF

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Publication number
EP0763833B1
EP0763833B1 EP96114387A EP96114387A EP0763833B1 EP 0763833 B1 EP0763833 B1 EP 0763833B1 EP 96114387 A EP96114387 A EP 96114387A EP 96114387 A EP96114387 A EP 96114387A EP 0763833 B1 EP0763833 B1 EP 0763833B1
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EP
European Patent Office
Prior art keywords
filter
winding
tappings
transformer
vehicle
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
EP96114387A
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German (de)
English (en)
Other versions
EP0763833A3 (fr
EP0763833A2 (fr
EP0763833B2 (fr
Inventor
Wolfgang Dr. Runge
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.)
Alstom Transportation Germany GmbH
Original Assignee
Bombardier Transportation GmbH
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Publication date
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Priority claimed from DE19605423A external-priority patent/DE19605423A1/de
Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH
Publication of EP0763833A2 publication Critical patent/EP0763833A2/fr
Publication of EP0763833A3 publication Critical patent/EP0763833A3/fr
Publication of EP0763833B1 publication Critical patent/EP0763833B1/fr
Application granted granted 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics

Definitions

  • the invention relates to a vehicle transformer for an electrically powered vehicle.
  • Electric locomotives and railcars for alternating current railways usually have a transformer on the input side.
  • Modern vehicles have power converters for drive control connected to the secondary side of the transformer.
  • the clock frequency of the network side results Power converters undesirable higher harmonics in the vehicle's mains current, their frequency extends into the audio frequency range.
  • the invention has for its object a vehicle transformer for an electrically driven Specify vehicle with interference current filter with which the effort for interference current filtering is reduced.
  • EP-A-0 149 169 known a converter transformer, in a 3-winding transformer between a primary winding as an outer winding and a secondary winding Equalization winding to provide a better filtering effect for disturbing harmonic currents especially in a high voltage direct current transmission system to reach.
  • the primary winding is for connection to an AC network determines the secondary winding for connection to a power converter and the compensation winding for connection to a filter circuit for screening undesirable Harmonic currents.
  • one can further compensation winding can be provided as an inner winding.
  • At a 4 Winding transformers are two winding arrangements with two parallel ones Primary windings as external windings, each with a separate secondary winding and one equalization winding between the primary and secondary winding provided, the two compensation windings are connected in series.
  • the advantages that can be achieved with the invention are in particular that the large transformer in the vehicle realized inductance is used for interference current filtering. Corresponding the filter capacity required to achieve the desired natural frequency can be smaller to get voted. This reduces the losses. The components of the interference current filter no longer have to be designed for high voltage. Total result considerable advantages due to the reduction in space requirements to be achieved, the weight reduction and cost reduction.
  • Fig. 1 is an equivalent circuit diagram for a transformer with a filter on a special filter winding shown. Due to a special interference current filter winding FiW between primary and secondary windings, the large inductance realized in the transformer for the Use filtering. The voltage on this special filter winding can be selected in this way (preferably ⁇ 1000 V) that the filter can no longer be designed for high voltage got to.
  • the transformer short-circuit inductance LT of Fig. 8 now replaced by inductors L1 + L2.
  • the Share L1 are in the range of 30% to 70% of LT.
  • L1 is a multiple of that hitherto realizable additional filter inductance LF * according to FIG. 8.
  • the filter capacity can be dimensioned and in addition a lower one can nevertheless Natural filter frequency and thus a further attenuation of the interference currents achieved become.
  • the input impedance of the overall circuit is reduced less by this filter.
  • FIGS. 2a to 2c Possible configurations of the filter are shown in FIGS. 2a to 2c.
  • the equivalent circuit is referred to the primary side, all filter elements used here are in the Reality with the square of the gear ratio between filter winding and Think high voltage winding.
  • Fig. 2a shows the simple CF-RF filter, with filter capacitor CF and filter resistor RF. If the inductance Lfi is almost zero, the filter causes a drop TR (f) with 1 / f 2 above its natural frequency. At the natural frequency into which the parallel connection of the inductors L1, L2 and the filter capacitor CF are included for ZO ⁇ L1, the filter increases TR, and the more the filter attenuates the filter resistor RF, the more so.
  • a combination of the suction circuit effect with a stronger attenuation at higher frequencies is by equipping the filter with a parallel resistor RP to LF reached according to Fig. 2c.
  • the desired effect of the filter winding and the filter on the network side is from the Equivalent circuit diagram in Fig. 1 and 2a to 2c fully derivable.
  • the n four-quadrant converter working with offset clocking on the same transformer is only the mean of the n voltages as the resulting actuator voltage VAT. If necessary, asymmetries are also caused by something different Considerations of the individual stresses in the averaging.
  • the number n of four-quadrant actuators and associated transformer windings can usually be 2, 3, 4 or 6.
  • the equivalent circuit does not show the circuits of the n individual four-quadrant and the influence of the filter on them.
  • the n four-quadrant digits are evenly offset clocked so that their low clock frequency harmonics (below the extinguish the n-fold frequency of a four-quadrant actuator) towards the network as far as possible.
  • the lower current harmonics are most pronounced in transformer windings out. In this case, the inductance that limits them is only n • L2 between the four-quadrant controller and filter node while it is without the filter node n • LT. This means, these dominant current harmonics become about twice as much through the filter node large.
  • the filter winding takes up space in the winding window and thus enlarges the transformer.
  • the OS winding is designed as a layer winding, can instead of an additional filter winding opposite the US winding, on The first layer of the OS winding to be connected is used as a filter winding become.
  • Fig. 6a stands for all filter modifications, as shown in Fig. 2a, 2b, 2c.
  • FIG. 9 shows an alternative to the arrangement according to FIG. 6a without a suction throttle.
  • the suction throttle SD is omitted and each filter tap F1, F2 of the high-voltage winding is with its own filter (Filter modifications see Fig. 2a to 2c) connected.
  • Each of the two filters affects all Harmonics of the assigned actuator. In comparison to the circuits according to FIG. 4 and 6a there are higher losses in the filter resistors.
  • the filter is very simple when the Filter resistor is split into two parts with 2 • RF and at the same time the task of Power sharing with takes over. It is accepted that the series connection 4 • RF the differential voltage of the taps F1 and F2 is present and generates additional losses. Because with a small filter, the filter resistance RF can be comparatively large, that is justifiable.
  • This idea can also be transferred well to systems with n> 2, as shown in FIG. 7b.
  • the filter resistance is divided into n parts with n • RF each.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Electron Sources, Ion Sources (AREA)

Claims (12)

  1. Transformateur de véhicule pour un véhicule à propulsion électrique, caractérisé par au moins un enroulement de filtre de courant parasite (FiW) intégré dans le transformateur, qui utilise une ou plusieurs couches de l'enroulement haute tension, qui sont voisines de l'enroulement basse tension, ce qui fait qu'un circuit économiseur de transformateur est constitué en ce qui concerne l'enroulement de filtre de courant parasite, au moins un filera, qui comprend le montage en série d'au moins une résistance de filtre (RF) et d'un condensateur de filtre (TF), étant raccordé aux branchements de bobinage de filtre (Fi, F1 ... Fn).
  2. , Transformateur pour véhicule selon. la revendication 1, caractérisé en ce que deux prises de filtre (F1, F2) formées par le circuit d'autotransformateur sont reliées entre elles par une bobine d'absorption (9D), le raccordement pour le filtre étant formé par la prise centrale de la bobine d'absorption (figure 6a).
  3. Transformateur pour véhicule selon la revendication 1, caractérisé en ce que, pour quatre prises de filtre (F1, F2, F3, F4) formées par le circuit d'autotransformateur, respectivement deux prises de filtre (F1 et F2, F3 et F4) sont reliées entre elles par une bobine d'aspiration (SD1, SD2) et en ce que les prises centrales de ces deux bobines d'absorption sont reliées à une troisième bobine d'absorption (SD3), dont la prise centrale forme le branchement pour le filtre (figure 5).
  4. Transformateur pour véhicule selon la revendication 1, caractérisé en ce que, pour n (n=2,3,4,...) prises de filtre (F1, F2, F3, F4, ..., Fn) forméee, par le circuit économiseur de transformateur, respectivement les n prises de filtre sont reliées par une bobine (D1 .. Dn) à un point nodal commun, le branchement pour le filtre étant formé par le point de liaison commun de toutes les bobines (figure 6c).
  5. Transformateur pour véhicule selon la revendication 1, caractérisé en ce que deux prises de filtre (F1, F2) formées par le circuit économiseur de transformateur sont reliées au moyen de deux résistances partielles identiques (2RF), le raccordement pour le filtre étant formé par le point de liaison commun de deux résistances partielles (figure 7a).
  6. Transformateur pour véhicula selon la revendication 1, caractérisé en ce que, pour n (n= 3,4,...) prises de filtre (F1, F2, F3, F4, ..., Fn) formées par le circuit économiseur de transformateur, respectivement les n prises de filtre sont reliées à un point nodal commun par n résistances partielles (nRF), le branchement pour le filtre étant formé par le point de liaison commun de toutes les résistances partielles (figure 7b).
  7. Transformateur pour véhicula selon la revendication 5 ou 6, caractérisé en ce que les résistances partielles (2RF, nRF) assument en même temps la fonction de la résistance de filtre (RF).
  8. Transformateur pour véhicule selon la revendication 1, caractérisé en ce qu'au moins deux prises de filtre (F1, F2, F3, F4, ..., Fn) formées par le circuit économiseur de transformateur sont directement reliées entre elles, afin de former le branchement pour le filtre.
  9. Transformateur pour véhicule salon l'une quelconque des revendications 1 à 8, caractérisé en ce que le filtre présente en supplément une bobine de filtre (LF) montée en série (figure 2b).
  10. Transformateur pour véhicule selon la revendication 9, caractérisé en ce qu'une résistance parallèle (RF) est disposée parallèlement à la bobine de filtre (LF) (figure 2c).
  11. Transformateur pour véhicule selon l'une quelconque des revendications 1 à 10, caractérisé en ce que différents filtres ou des filtres dimensionnés pour différentes fréquences sont montés en parallèle.
  12. Transformateur pour véhicule salon les revendications 2, 3 et 4, caractérisé en ce que la au moins une bobine d'absorption ou bobine (SD, SD1, SD2, SD3, D1 ... Dan) assume en même temps la fonction de la bobine filtre (LF) (figure 6a).
EP96114387A 1995-09-14 1996-09-09 Transformateur pour un véhicule à propulsion électrique Expired - Lifetime EP0763833B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19533988 1995-09-14
DE19533988 1995-09-14
DE19605423 1996-02-14
DE19605423A DE19605423A1 (de) 1995-09-14 1996-02-14 Transformator für ein elektrisch angetriebenes Fahrzeug

Publications (4)

Publication Number Publication Date
EP0763833A2 EP0763833A2 (fr) 1997-03-19
EP0763833A3 EP0763833A3 (fr) 1997-08-06
EP0763833B1 true EP0763833B1 (fr) 2001-12-12
EP0763833B2 EP0763833B2 (fr) 2012-12-05

Family

ID=26018562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114387A Expired - Lifetime EP0763833B2 (fr) 1995-09-14 1996-09-09 Transformateur pour un véhicule à propulsion électrique

Country Status (2)

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EP (1) EP0763833B2 (fr)
AT (1) ATE210882T1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736614A1 (de) * 1997-08-22 1999-02-25 Asea Brown Boveri Wechselrichter
FR2780548B1 (fr) † 1998-06-29 2001-02-23 Alsthom Gec Ensemble d'alimentation electrique d'une charge a partir d'une source d'energie et locomotive equipee d'un tel ensemble
GB2408634A (en) * 2003-11-17 2005-06-01 Bombardier Transp Gmbh Traction transformer with primary and filter windings connected in series
FR2881266B1 (fr) 2005-01-27 2007-03-09 Areva T & D Sa Transformateur pour vehicule moteur multicourant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809895A (en) † 1928-10-08 1931-06-16 Frazer W Gay Protective system for transformers
US3710284A (en) * 1971-03-01 1973-01-09 Asea Ab Harmonic filter
US4581573A (en) * 1984-01-13 1986-04-08 Bbc Brown, Boveri & Company, Limited Static converter transformer with harmonic filter
ATE61886T1 (de) † 1986-07-30 1991-04-15 Siemens Ag Schaltungsanordnung fuer leistungsgrosstransformatoren.
JPS63121402A (ja) * 1986-11-07 1988-05-25 Hitachi Ltd 電気車制御装置
SU1488918A1 (ru) † 1987-11-18 1989-06-23 Inst Elektrodinamiki Фильтр

Also Published As

Publication number Publication date
ATE210882T1 (de) 2001-12-15
EP0763833A3 (fr) 1997-08-06
EP0763833A2 (fr) 1997-03-19
EP0763833B2 (fr) 2012-12-05

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