EP0763833A2 - Transformateur pour un véhicule à propulsion électrique - Google Patents

Transformateur pour un véhicule à propulsion électrique Download PDF

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Publication number
EP0763833A2
EP0763833A2 EP96114387A EP96114387A EP0763833A2 EP 0763833 A2 EP0763833 A2 EP 0763833A2 EP 96114387 A EP96114387 A EP 96114387A EP 96114387 A EP96114387 A EP 96114387A EP 0763833 A2 EP0763833 A2 EP 0763833A2
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EP
European Patent Office
Prior art keywords
filter
winding
transformer
transformer according
taps
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
EP96114387A
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German (de)
English (en)
Other versions
EP0763833A3 (fr
EP0763833B1 (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
ABB Patent GmbH
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Publication date
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Priority claimed from DE19605423A external-priority patent/DE19605423A1/de
Application filed by ABB Patent GmbH filed Critical ABB Patent 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
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Publication of EP0763833B2 publication Critical patent/EP0763833B2/fr
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    • 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 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.
  • 4QS four-quadrant controller
  • the clock frequency of the line-side converters results in undesirable higher harmonics in the line current of the vehicle, the frequency of which extends into the audio frequency range. They must be limited with regard to possible adverse effects on railway signal systems and telephone cables.
  • the invention has for its object to provide a transformer for an electrically driven vehicle with interference current filter, with which the effort for interference current filtering is reduced.
  • the advantages that can be achieved with the invention are, in particular, that the large inductance implemented in the transformer is used for interference current filtering.
  • the filter capacity required to achieve the desired natural frequency can be selected to be correspondingly smaller. This reduces the losses.
  • the components of the interference current filter no longer have to be designed for high voltage. Overall, there are considerable advantages due to the reduction in space requirements, the weight reduction and the cost reduction.
  • FIG. 1 shows an equivalent circuit diagram for a transformer with a filter on a special filter winding. Due to a special interference current filter winding FiW between primary and secondary windings, the large transformer-implemented inductance can be used for filtering. The voltage on this particular filter winding can be selected (preferably ⁇ 1000 V) so that the filter no longer has to be designed for high voltage.
  • the transformer short-circuit inductance LT of FIG. 9 is now replaced by the inductors L1 + L2.
  • the proportion L1 should be in the range from 30% to 70% of LT.
  • L1 is a multiple of the previously achievable additional filter inductance LF * according to FIG. 9.
  • the filter capacitance can be dimensioned correspondingly smaller and, in addition, a lower natural filter frequency and thus a further attenuation of the interference currents can be achieved.
  • the input impedance of the overall circuit is reduced less by this filter.
  • the equivalent circuit diagram according to FIG. 1 then has the same structure as that according to FIG. 9. Depending on the coupling conditions present in the transformer, the inductance Lfi can even be weakly negative.
  • FIGS. 2a to 2c Possible configurations of the filter are shown in FIGS. 2a to 2c.
  • the equivalent circuit diagram refers to the primary side, in reality all filter elements used are to be thought of as the square of the gear ratio between the filter winding and the 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 ZO ⁇ L1 the parallel connection of the inductors L1, L2 and the filter capacitor CF are included, TR is increased by the filter, and the more, the less the filter is damped by the filter resistor RF.
  • a combination of the suction circuit effect with a stronger attenuation to higher frequencies is achieved by equipping the filter with a parallel resistance RP to LF according to FIG. 2c.
  • the desired effect of the filter winding and the filter on the network side can be completely derived from the equivalent circuit diagram in FIGS. 1 and 2a to 2c.
  • the individual actuator voltages of the n four-quadrant actuators operating with offset timing on the same transformer, only the mean value of the n voltages is to be used as the resulting actuator voltage USt '. If necessary, asymmetries due to slightly different evaluations of the individual voltages must also be taken into account when averaging.
  • the number n of four-quadrant actuators 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 actuators and the influence of the filter on them.
  • n four-quadrant controllers are clocked with an even offset, so that their low clock frequency harmonics (below n times the frequency of a four-quadrant controller) largely cancel each other out towards the network.
  • the lower current harmonics are most pronounced in the individual four-quadrant actuators themselves and the transformer windings assigned to them.
  • the inductance that limits it in this case is only n ⁇ L2 between the four-quadrant controller and the filter node, while it is n ⁇ LT without the filter node. This means that these dominant current harmonics are about twice as large through the filter node.
  • One of the filter winding connections Fi is, for example, at ground potential.
  • the filter winding takes up space in the winding window and thus enlarges the transformer if necessary.
  • the OS winding is designed as a layer winding
  • Fig. 7a stands for all filter modifications, as shown in Fig. 2a, 2b, 2c.
  • Fig. 7b the functions of the filter throttle LF and the suction throttle SD are combined to form a throttle LF ''.
  • FIG. 10 shows an alternative to the arrangement according to FIG. 7a without a suction throttle.
  • the suction throttle SD is omitted and each filter tap F1, F2 of the high-voltage winding is connected to its own filter (filter modifications see FIGS. 2a to 2c).
  • Each of the two filters affects all harmonics of the assigned actuator. In comparison to the circuits according to FIGS. 5 and 7a, higher losses occur in the filter resistors.
  • the suction throttle and filter throttle can be dispensed with entirely.
  • the filter becomes very simple when the filter resistor is split into two parts each with 2 ⁇ RF and at the same time takes on the task of dividing the current. It is accepted that the differential voltage of the taps F1 and F2 due to the offset timing is present across the series circuit 4 ⁇ RF and generates additional losses. Since the filter resistance RF can be comparatively large for a small filter, this is justifiable.
  • the filter resistor is divided into n parts, each with n ⁇ RF.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Filters And Equalizers (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Electron Sources, Ion Sources (AREA)
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 true EP0763833A2 (fr) 1997-03-19
EP0763833A3 EP0763833A3 (fr) 1997-08-06
EP0763833B1 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)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898358A2 (fr) * 1997-08-22 1999-02-24 Asea Brown Boveri AG Onduleur
GB2408634A (en) * 2003-11-17 2005-06-01 Bombardier Transp Gmbh Traction transformer with primary and filter windings connected in series
EP1092226B2 (fr) † 1998-06-29 2011-04-20 ALSTOM Transport SA Vehicule ferroviaire electrique et ensemble d'alimentation electrique, notamment pour un tel vehicule
EP1841616B1 (fr) 2005-01-27 2016-12-21 Alstom Grid SAS Transformateur pour véhicule moteur multicourant

Citations (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
EP0149169A2 (fr) * 1984-01-13 1985-07-24 BBC Aktiengesellschaft Brown, Boveri & Cie. Transformateur-redresseur
EP0257291A1 (fr) † 1986-07-30 1988-03-02 Siemens Aktiengesellschaft Dispositif de connexions pour transformateurs de grande puissance
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

Patent Citations (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
EP0149169A2 (fr) * 1984-01-13 1985-07-24 BBC Aktiengesellschaft Brown, Boveri & Cie. Transformateur-redresseur
EP0257291A1 (fr) † 1986-07-30 1988-03-02 Siemens Aktiengesellschaft Dispositif de connexions pour transformateurs de grande puissance
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 371 (M-748), 5.Oktober 1988 & JP 63 121402 A (HITACHI LTD), 25.Mai 1988, *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898358A2 (fr) * 1997-08-22 1999-02-24 Asea Brown Boveri AG Onduleur
EP0898358A3 (fr) * 1997-08-22 1999-10-27 Asea Brown Boveri AG Onduleur
EP1092226B2 (fr) † 1998-06-29 2011-04-20 ALSTOM Transport SA Vehicule ferroviaire electrique et ensemble d'alimentation electrique, notamment pour un tel vehicule
GB2408634A (en) * 2003-11-17 2005-06-01 Bombardier Transp Gmbh Traction transformer with primary and filter windings connected in series
CN1883019B (zh) * 2003-11-17 2012-07-04 邦巴尔迪尔运输有限公司 牵引变压器
EP1841616B1 (fr) 2005-01-27 2016-12-21 Alstom Grid SAS Transformateur pour véhicule moteur multicourant

Also Published As

Publication number Publication date
ATE210882T1 (de) 2001-12-15
EP0763833A3 (fr) 1997-08-06
EP0763833B1 (fr) 2001-12-12
EP0763833B2 (fr) 2012-12-05

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