EP2815411B1 - Transformateur équipé d'un système de commutation à gradins - Google Patents

Transformateur équipé d'un système de commutation à gradins Download PDF

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Publication number
EP2815411B1
EP2815411B1 EP13700690.4A EP13700690A EP2815411B1 EP 2815411 B1 EP2815411 B1 EP 2815411B1 EP 13700690 A EP13700690 A EP 13700690A EP 2815411 B1 EP2815411 B1 EP 2815411B1
Authority
EP
European Patent Office
Prior art keywords
winding
tap
semiconductor switching
branch
changing device
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.)
Revoked
Application number
EP13700690.4A
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German (de)
English (en)
Other versions
EP2815411A1 (fr
Inventor
Jochen Von Bloh
Volker Karrer
Dieter Dohnal
Karsten Viereck
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.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2815411A1 publication Critical patent/EP2815411A1/fr
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Publication of EP2815411B1 publication Critical patent/EP2815411B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0011—Voltage selector switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0016—Contact arrangements for tap changers

Definitions

  • the invention relates to a transformer with tap changer for uninterrupted switching between parts of a control winding of the transformer.
  • Stepping devices for uninterrupted switching between winding taps of a tapped transformer have been known in the art for many years.
  • the corresponding step transformers which are to be controlled, have a stepped control winding on the primary side or on the secondary side.
  • the winding on the regulating side of the transformer as a whole consists of a fixed part, the main winding, and the actual control winding, which has a plurality of winding taps. This is explained in detail in the publication " Axel Krämer: On-Load Tap Changers for Power Transformers ", published in 2000 ,
  • tap-changer is off GB 2424766 known. This patent discloses that the tap changer comprises capacitors, coils and resistors forming a resonant circuit.
  • the step transformer to be controlled has a main winding on its side to be controlled and a stepped control winding in series therewith.
  • the object of the invention is to provide a transformer with a tap changer, in which the electrical load of the semiconductor switching elements used in the tap changer is minimized.
  • the invention is based on the general idea of dividing the common prior art winding on the side of the transformer to be controlled into two equal winding parts and providing the control winding between these winding parts and, in turn, the corresponding step switching device.
  • the semiconductor switching elements can no longer be loaded with the full amplitude of the lightning voltage wave, since the respective impedance is connected upstream of half the main winding. Since the quasi-upstream part of the main winding also absorbs part of the energy of the lightning voltage wave, the protective circuit of the switching elements can also be made smaller, resulting in cost and space savings. Furthermore, it is also possible to use semiconductor switching elements with a smaller blocking / blocking voltage, since these are to be dimensioned primarily after the lightning voltage load and not according to the standing AC voltage.
  • the upstream part of the split main winding acts according to the invention as a choke for fast transients on the power line, the semiconductor switching elements are not burdened in this case with the full amplitude and edge steepness, since the individual winding parts act as an upstream throttle damping.
  • the winding design for the split main winding is designed symmetrically; As a result, the force effect is minimized in the event of a short circuit.
  • the production of the two parts of the invention shared parent winding can be advantageously divided into individual layers.
  • FIG. 1 shows in a first embodiment of the invention, a transformer whose primary and secondary sides are separated by a schematically indicated dashed line.
  • a split main winding is provided which consists of two identical main winding parts 1, 2.
  • a step switching device 3 is arranged, which is symbolized by a dashed line.
  • the tap changer 3 has here, as the simplest case, a control winding 4, which is surrounded by switching elements S in the form of a bridge.
  • switching elements S for example, antiparallel thyristor pairs, IGBTs o.ä. Semiconductor switching elements, can be used.
  • control winding 4 is switched on or off. Shown here is still a switch 5, a so-called black start switch, which ensures that the transformer can continue to operate even in case of failure of the controller or the failure of semiconductor switching elements.
  • a switch 5 Shown here is still a switch 5, a so-called black start switch, which ensures that the transformer can continue to operate even in case of failure of the controller or the failure of semiconductor switching elements.
  • On the right side of the secondary winding 6 is indicated. Denoted at 7 and 8 are the beginning and the end of the entire winding structure on the primary side.
  • Fig. 2 shows a further developed embodiment of the invention.
  • the tap changer device 3 consists of split control windings W1, W2, W3.
  • the tap changer 3 here consists of three individual modules M1, M2, M3.
  • the first module M1 comprises the first control winding or partial winding W1 and on both sides thereof two bridging paths, each of which comprises a series connection of two semiconductor switching elements S1.1 and S1.2 or S1.3 and S1.4. In each case between the two series-connected switching elements a center tap M1.1 or M1.2 is provided.
  • the individual semiconductor switching elements are shown here as well as in the following figures only schematically as a simple switch. They include in practice parallel thyristor pairs, IGBTs or other semiconductor switching elements.
  • the one center tap M1.2 is electrically connected to the main winding part 2.
  • the other center tap M1.1 is connected to a center tap M2.1 of a second module M2.
  • This second module M2 is constructed identically; it likewise comprises a partial winding W2 as well as the two series circuits each consisting of two semiconductor switching elements S2.1 and S2.2 or S2.3 and S2.4.
  • center tap M2.1 and M2.2 are provided between the respective series circuits again.
  • the wiring of a center tap M2.1 with the first module M1 has already been explained; the second Center tap M2.2 in turn is connected to a center tap M3.2 of a third module M3.
  • This third module M3 is again constructed identically.
  • the third module M3 includes a partial winding W3 and the two series circuits of semiconductor switching elements S3.1 and S3.2 or S3.3 and S3.4 and the intermediate center taps M3.1 and M3.2.
  • the not yet mentioned center tap M3.1 of the third and here last module M3 is electrically connected to the main winding part 1.
  • the described here three modules M1 ... M3 differ only by the dimensions of the respective partial windings W1 ... W3.
  • the partial winding W2 in the second module M2 here has the triple number of turns of the partial winding W1 in the first module M1.
  • the partial winding W3 in the third module M3 here has six times the number of turns of the partial winding W1 in the first module M1.
  • FIG. 3 shows a wiring table of in FIG. 2 illustrated stepped switching device according to the invention.
  • the symbol “0” means that the corresponding partial winding is not switched on, ie bridged.
  • the symbol “+” means that the corresponding partial winding is connected to the main winding part or to the high-voltage winding 2 in the same sense.
  • the symbol “-” finally means that the corresponding part winding is connected in opposite directions to the high-voltage winding 2.
  • the ten voltage levels are shown, which arise when you add to the step voltage of the high-voltage winding 2 more partial voltages. These partial voltages result from the different connection, counter circuit or bridging of the individual winding parts W1 ... W3.
  • FIG. 4 shows a further embodiment of the invention.
  • the tap changer 3 shown here is arranged. It has two series-connected switch assemblies A and B.
  • the first switch assembly A in turn has a parallel connection of two branches 9 and 10.
  • two semiconductor switching units S1, S2 are provided in series.
  • two further semiconductor switching units S3, S4 are provided in series with one another.
  • a first part winding W1 of the control winding is arranged between the two series-connected semiconductor switching units S1, S2 in the first branch 9 and the two series-connected semiconductor switching units S3, S4 in the second branch 10.
  • the second switch assembly B has a parallel circuit of three branches 11, 12 and 13.
  • In the third branch 11 are connected in series to each other two semiconductor switching units S5, S6, in the fourth branch 12 are connected in series to each other two semiconductor switching units S7, S8 and fifth Branch 13 in series with each other two semiconductor switching units S9, S10 provided.
  • Between the two series-connected semiconductor switching units S5, S6 in the third branch 11 and the two series-connected semiconductor switching units S7, S8 in the fourth branch 12 is a second partial winding W2 of the control winding and between the two series-connected semiconductor switching units S7 , S8 in the fourth branch 12 and the two series-connected semiconductor switching units S9, S10 in the fifth branch 13, a third partial winding W3 is arranged.
  • the second switch assembly B is electrically connected to the parent winding part 2.

Claims (4)

  1. Transformateur équipé d'un dispositif de commutation à gradins (3), d'un côté primaire et d'un côté secondaire dans lequel :
    - le côté primaire, ou le côté secondaire peut être réglé au moyen du dispositif de commutation à gradins (3),
    - chaque enroulement de réglage (W1,...W3) est constitué par un enroulement,
    - sur le côté du transformateur devant être réglé il est prévu un enroulement principal et au moins un enroulement de réglage (W1, W2, W3) qui peut être branché par le dispositif de commutation à gradins (3),
    - l'enroulement principal est subdivisé en deux parties d'enroulement principal (1, 2),
    - l'enroulement de réglage (W1...W3) et le dispositif de commutation à gradins (3) qui le branche sont montés électriquement entre les deux parties de l'enroulement principal (1, 2) de sorte que :
    • la première partie de l'enroulement principal (1) soit connectée par une extrémité à une première extrémité (M3.1) du dispositif de commutation à gradins (3),
    • la seconde partie de l'enroulement principal (1) soit connectée par une extrémité à une seconde extrémité (M 1.2) du dispositif de commutation à gradins (3),
    • chaque extrémité de chaque enroulement de réglage (W1...W3) soit reliée à la première extrémité et à la seconde extrémité (M3.1, M 1.2) du dispositif de commutation à gradins (3) par l'intermédiaire d'un chemin de pontage qui comporte un montage en série de deux éléments de commutation semi-conducteurs (S1.1, S1.2, S1.3, S1.4 ; S2.1, S2.2, S2.3, S2.4 ; S3.1, S3.2 ; S3.3, S3.4 ; S4.1, S4.2 ; S4.3, S4.4).
  2. Transformateur conforme à la revendication 1,
    dans lequel :
    - le dispositif de commutation à gradins (3) comporte au moins deux modules (M1, M2, M3),
    - chaque module (M 1...M3) comporte respectivement un enroulement de réglage (W1, W2, W3) ainsi que de part et d'autre de celui-ci, les deux chemins de pontage,
    - chaque chemin de pontage comporte respectivement un montage en série de deux éléments de commutation semi-conducteurs (S ; S1.1, S1.2, S1.3, S1.4 ; S2.1, S2.2, S2.3, S2.4 ; S3.1, S3.2 ; S3.3, S3.4 ; S4.1, S4.2 ; S4.3, S4.4),
    - dans chacun des chemins de pontage, est prévu, entre ses éléments de commutation semi-conducteurs (S ; S1.1, S1.2, ... S4.3, S4.4) une prise de réglage médiane (M1.1 ; M1.2 ; M2.1 ; M2.2 ; M3.1 ; M3.2),
    - les enroulements de réglage (W1... W3) ont des nombres de spires différents,
    - dans chaque module (M1...M3), l'une de ses prises de réglage médianes (M1.1 ; M2.1 ; M2.2 ; M3.2) est reliée à une prise de réglage médiane (M2.1, M1.1, M3.2, M2.2) du module voisin (M2, M1, M3, M2),
    - la prise de réglage médiane restante (M1.2) du premier module (M1) est reliée électriquement à une partie de l'enroulement principal (2) et la prise de réglage médiane restante (M3.1 ; M4.1) du dernier module (M3 ; M4) est reliée électriquement à l'autre partie de l'enroulement principal (1).
  3. Transformateur conforme à la revendication 1,
    dans lequel :
    - le dispositif de commutation à gradins (3) comprend deux blocs de commutation (A, B) branchés en série,
    - le premier bloc de commutation (A) comprend un montage en parallèle d'une première branche et d'une seconde branche (9, 10) et le second bloc de commutation (B) comprend un montage en parallèle d'une troisième branche, d'une quatrième branche et d'une cinquième branche (11, 12, 13),
    - chaque branche (9...14) comprend les deux éléments de commutation semi-conducteurs (S1, S2 ; S3, S4 ; S5, S6 ; S7, S8 ; S9, S10) montés en série,
    - entre les éléments de commutation semi-conducteurs (S1, S2) de la première branche (9) et les éléments de commutation semi-conducteurs (S3, S4) de la seconde branche (10) est monté un premier enroulement de réglage (W1),
    - entre les éléments de commutation semi-conducteurs (S5, S6) de la troisième branche (11) et les éléments de commutation semi-conducteurs (S7, S8) de la quatrième branche (12) est monté un second enroulement de réglage (W2),
    - entre les éléments de commutation semi-conducteurs (S7, S8) de la quatrième branche (12) et les éléments de commutation semi-conducteurs (S9, S10) de la cinquième branche (13) est monté un troisième enroulement de réglage (W3),
    - le premier bloc de commutation (A) est relié électriquement à une première partie de l'enroulement principal (2) et le second bloc de commutation (B) est relié électriquement à l'autre partie de l'enroulement principal (1).
  4. Transformateur conforme à l'une des revendications précédentes, dans lequel il est en outre prévu un contact mécanique (5) qui peut effectuer un pontage du dispositif de commutation à gradins (3) de façon à pouvoir obtenir, en cas de besoin, une liaison électrique directe entre les deux parties de l'enroulement principal (1, 2).
EP13700690.4A 2012-02-13 2013-01-15 Transformateur équipé d'un système de commutation à gradins Revoked EP2815411B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012202105.1A DE102012202105B4 (de) 2012-02-13 2012-02-13 Transformator mit Stufenschalteinrichtung
PCT/EP2013/050611 WO2013120642A1 (fr) 2012-02-13 2013-01-15 Transformateur équipé d'un système de commutation à gradins

Publications (2)

Publication Number Publication Date
EP2815411A1 EP2815411A1 (fr) 2014-12-24
EP2815411B1 true EP2815411B1 (fr) 2017-05-31

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EP13700690.4A Revoked EP2815411B1 (fr) 2012-02-13 2013-01-15 Transformateur équipé d'un système de commutation à gradins

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US (1) US9123464B2 (fr)
EP (1) EP2815411B1 (fr)
JP (1) JP6250560B2 (fr)
KR (1) KR102014225B1 (fr)
CN (1) CN104094369B (fr)
AU (1) AU2013220673B2 (fr)
BR (1) BR112014019987A2 (fr)
CA (1) CA2861465C (fr)
DE (1) DE102012202105B4 (fr)
ES (1) ES2637656T3 (fr)
HK (1) HK1201634A1 (fr)
RU (1) RU2632194C2 (fr)
UA (1) UA114419C2 (fr)
WO (1) WO2013120642A1 (fr)

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DE112013006274T5 (de) * 2012-12-27 2015-09-24 Xiaoming Li Thyristorgestützter Laststufenschalter sowie zugehöriges Verfahren
DE102013110652B4 (de) * 2013-09-26 2018-02-22 Maschinenfabrik Reinhausen Gmbh Schaltanordnung mit Vorwähler
CH709397A1 (de) * 2014-03-24 2015-09-30 Siegfried A Eisenmann Kraftfahrzeug mit Elektroantrieb.
CN106298295A (zh) * 2015-05-25 2017-01-04 北京华天机电研究所有限公司 桥接式有载分接开关
RU2613679C2 (ru) * 2015-08-19 2017-03-21 Борис Алексеевич Аржанников Устройство для регулирования напряжения и способ его регулирования
EP3285349B1 (fr) * 2016-08-16 2019-03-13 ABB Schweiz AG Protection d'un transformateur comportant un changeur de prise
EP3839993A1 (fr) * 2019-12-17 2021-06-23 ABB Power Grids Switzerland AG Changeur de prises en charge d'électronique de puissance comportant un nombre réduit de prises

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EP0294653A1 (fr) 1987-06-09 1988-12-14 Siemens Aktiengesellschaft Sélecteur de prises hors charge pour transformateurs
WO1995027931A1 (fr) 1994-04-06 1995-10-19 Utility Systems Technologies, Inc. Commutateurs en charge
WO2002015362A1 (fr) 2000-08-18 2002-02-21 John Vithayathil Circuit pour la production statique d'une puissance electrique variable
GB2424766A (en) 2005-03-31 2006-10-04 Areva T & D Sa Resonant circuit arrangement used to commutate switches of an on-load tap changer
ES2318961A1 (es) 2006-05-19 2009-05-01 Universidad De Sevilla Cambiador de tomas estatico optimizado para transformadores de alta/media tension (at/mt) y media/baja tension (mt/bt).
CN101430967A (zh) 2008-08-21 2009-05-13 上海华明电力设备制造有限公司 晶闸管电阻过渡切换有载分接开关
WO2010115485A1 (fr) 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Changeur de prises en charge à éléments de commutation à semi-conducteurs
DE102009060132B3 (de) 2009-12-23 2011-05-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Polungsschalter an einem Regeltransformator

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US3195038A (en) 1961-05-15 1965-07-13 Brentford Electric Ltd Voltage or current regulator apparatus
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GB2424766A (en) 2005-03-31 2006-10-04 Areva T & D Sa Resonant circuit arrangement used to commutate switches of an on-load tap changer
ES2318961A1 (es) 2006-05-19 2009-05-01 Universidad De Sevilla Cambiador de tomas estatico optimizado para transformadores de alta/media tension (at/mt) y media/baja tension (mt/bt).
CN101430967A (zh) 2008-08-21 2009-05-13 上海华明电力设备制造有限公司 晶闸管电阻过渡切换有载分接开关
WO2010115485A1 (fr) 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Changeur de prises en charge à éléments de commutation à semi-conducteurs
DE102009060132B3 (de) 2009-12-23 2011-05-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Polungsschalter an einem Regeltransformator

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KR20140122278A (ko) 2014-10-17
HK1201634A1 (en) 2015-09-04
AU2013220673B2 (en) 2017-01-05
DE102012202105A1 (de) 2013-08-14
BR112014019987A2 (pt) 2017-07-04
RU2632194C2 (ru) 2017-10-03
CA2861465C (fr) 2019-09-17
RU2014137003A (ru) 2016-04-10
CN104094369A (zh) 2014-10-08
JP2015510268A (ja) 2015-04-02
AU2013220673A1 (en) 2014-09-25
CA2861465A1 (fr) 2013-08-22
WO2013120642A1 (fr) 2013-08-22
UA114419C2 (uk) 2017-06-12
KR102014225B1 (ko) 2019-10-21
US9123464B2 (en) 2015-09-01
CN104094369B (zh) 2016-10-26
DE102012202105B4 (de) 2014-08-07
ES2637656T3 (es) 2017-10-16
US20140375407A1 (en) 2014-12-25
EP2815411A1 (fr) 2014-12-24
JP6250560B2 (ja) 2017-12-20

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