EP0763833B2 - Transformateur pour un véhicule à propulsion électrique - Google Patents

Transformateur pour un véhicule à propulsion électrique Download PDF

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Publication number
EP0763833B2
EP0763833B2 EP96114387A EP96114387A EP0763833B2 EP 0763833 B2 EP0763833 B2 EP 0763833B2 EP 96114387 A EP96114387 A EP 96114387A EP 96114387 A EP96114387 A EP 96114387A EP 0763833 B2 EP0763833 B2 EP 0763833B2
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EP
European Patent Office
Prior art keywords
filter
winding
tappings
transformer according
vehicle 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
EP96114387A
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German (de)
English (en)
Other versions
EP0763833A2 (fr
EP0763833B1 (fr
EP0763833A3 (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
Application granted granted Critical
Publication of EP0763833B1 publication Critical patent/EP0763833B1/fr
Publication of EP0763833B2 publication Critical patent/EP0763833B2/fr
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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 driven vehicle.
  • Electric locomotives and railcars for AC railways usually have a transformer on the input side.
  • Modern vehicles have power converters for drive control, which are connected to the secondary side of the transformer.
  • the clock frequency of the network-side power converter results in unwanted higher harmonics in the mains current of the vehicle whose frequency extends into the audio frequency range. They must be limited in terms of possible adverse effects on railway signaling equipment and telephone cables.
  • the invention has for its object to provide a vehicle transformer for an electrically powered vehicle with Störstromfilter, with the effort for Störstromfilterung is reduced.
  • two winding arrangements are provided with two parallel-connected primary windings as external windings, each having a separate secondary winding and a respective compensation winding between the primary and secondary winding, wherein the two equalization windings are connected in series.
  • the advantages achieved by the invention are, in particular, that the large inductance realized in the vehicle transformer is used for interference current filtering. Correspondingly smaller, the filter capacity necessary to achieve the desired natural frequency can be selected. As a result, the losses are reduced. The components of the Störstromfilters no longer have to be designed for high voltage. Overall, there are considerable advantages due to the achievable space reduction, the weight reduction and the cost reduction.
  • Fig. 1 an equivalent circuit diagram for a transformer with filter on a particular filter winding is shown.
  • the large inductor realized in the transformer can be used for the filtering.
  • the voltage at this particular filter winding can be chosen (preferably ⁇ 1000 V) so that the filter no longer has to be designed for high voltage.
  • the transformer short-circuit inductance LT of Fig. 8 now replaced by the inductors L1 + L2.
  • the proportion L1 should be in the range of 30% to 70% of LT. Then L1 is a multiple of the previously realizable additional filter inductance LF * after Fig.
  • the filter capacitance can be dimensioned correspondingly smaller and, in addition, a lower filter natural frequency and thus a further attenuation of the interference currents can still be achieved.
  • the input impedance of the overall circuit is less lowered by this filter.
  • Fig. 2a represents the simple CF-RF filter, with filter capacitor CF and filter resistance RF.
  • the filter above its natural frequency causes a fall TR (f) with 1 / f 2 .
  • TR the parallel connection of the inductors L1, L2 and the filter capacitor CF, TR is increased by the filter, and the more so, the less the filter is damped by the filter resistor RF.
  • the desired on the network side effect of the filter coil and the filter is the equivalent circuit in Fig. 1 and 2a to 2c completely derivable.
  • the individual actuating voltages of the n with staggered clocking on the same transformer working four-quadrant controller instead of the individual actuating voltages of the n with staggered clocking on the same transformer working four-quadrant controller here only the average value of the n voltages as the resulting actuator voltage USt 'use. If necessary, asymmetries due to somewhat different evaluations of the individual stresses in the averaging must also be taken into account.
  • the number n of four-quadrant and associated Transformer windings can usually be 2, 3, 4 or 6.
  • the equivalent circuit diagram does not show the circuits of the n individual four-quadrant controllers and the influence of the filter on them.
  • n four-quadrant controllers are clocked in a uniformly offset manner, so that their low clock-frequency harmonics (below the n-fold frequency of a four-quadrant controller) largely wipe themselves out to the network.
  • the lower current harmonics are most pronounced.
  • the inductance limiting it in this case is only n • L2 between the quadrature controller and the filter node, while without the filter node it is n • LT. That is, these dominant current harmonics become about twice as large through the filter node.
  • the filter winding takes up space in the winding window and thus increases the transformer.
  • the OS winding is formed as a layer winding
  • the US winding opposite, to be connected to ground potential first position of the OS winding can be shared as a filter winding instead of an additional filter winding.
  • Fig. 6a, 6b show some embodiments in this case.
  • Fig. 6a stands for all filter modifications, as in Fig. 2a, 2b, 2c shown.
  • Fig. 9 is an alternative to the arrangement after Fig. 6a shown without suction throttle.
  • the suction throttle SD and each filter tap F1, F2 of the high-voltage winding is omitted with its own filter (for filter modifications see Fig. 2a to 2c ) connected.
  • Each of the two filters acts on all harmonics of the assigned actuator. Compared to the circuits according to 4 and 6a higher losses occur in the filter resistors.
  • Fig. 7a the filter becomes very simple if the filter resistance is split into two parts with 2 • RF each and at the same time takes on the task of splitting the current. It is thereby accepted that the differential voltage of the taps F1 and F2 caused by the offset timing is present across the series circuit 4 • RF and generates additional losses. Since the filter resistance RF can be comparatively high for a small filter, this is justifiable.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Automatic Cycles, And Cycles In General (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 les transformateur, qui utilise une ou plusieurs couches de l'enroulement haute tension, qui sont voisines de l'enroulement basse tension de sorte à constituer en ce qui concerne l'enroulement de filtre de courant parasite un circuit d'autotransformateur, un filtre d'affaiblissement d'un courant parasite apparaissant côté haute tension et engendré par des convertisseurs de courant côté basse tension étant branché aux branchements de l'enroulement de filtre, le filtre d'affaiblissement consistant en un montage en série d'au moins une résistance de filtre (RF) et d'un condensateur de filtre (TF).
  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) formées par le circuit d'autotransformateur, 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 véhicule 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 d'autotransformateur, 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 véhicule 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
DE19605423A DE19605423A1 (de) 1995-09-14 1996-02-14 Transformator für ein elektrisch angetriebenes Fahrzeug
DE19605423 1996-02-14

Publications (4)

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

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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

Citations (3)

* 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
EP0257291A1 (fr) † 1986-07-30 1988-03-02 Siemens Aktiengesellschaft Dispositif de connexions pour transformateurs de grande puissance
SU1488918A1 (ru) † 1987-11-18 1989-06-23 Inst Elektrodinamiki Фильтр

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS63121402A (ja) * 1986-11-07 1988-05-25 Hitachi Ltd 電気車制御装置

Patent Citations (3)

* 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
EP0257291A1 (fr) † 1986-07-30 1988-03-02 Siemens Aktiengesellschaft Dispositif de connexions pour transformateurs de grande puissance
SU1488918A1 (ru) † 1987-11-18 1989-06-23 Inst Elektrodinamiki Фильтр

Also Published As

Publication number Publication date
EP0763833A2 (fr) 1997-03-19
EP0763833B1 (fr) 2001-12-12
EP0763833A3 (fr) 1997-08-06
ATE210882T1 (de) 2001-12-15

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