EP2669920B1 - Installation de commutation - Google Patents

Installation de commutation Download PDF

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Publication number
EP2669920B1
EP2669920B1 EP12169977.1A EP12169977A EP2669920B1 EP 2669920 B1 EP2669920 B1 EP 2669920B1 EP 12169977 A EP12169977 A EP 12169977A EP 2669920 B1 EP2669920 B1 EP 2669920B1
Authority
EP
European Patent Office
Prior art keywords
switchgear assembly
thyristor
circuit
thyristor circuit
switch
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.)
Active
Application number
EP12169977.1A
Other languages
German (de)
English (en)
Other versions
EP2669920A1 (fr
Inventor
Jörg BAUSCH
Michael Heinz
Ronald Schmid
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 EP12169977.1A priority Critical patent/EP2669920B1/fr
Priority to ES12169977.1T priority patent/ES2641645T3/es
Priority to US14/404,697 priority patent/US9837224B2/en
Priority to PCT/EP2013/058694 priority patent/WO2013178413A1/fr
Priority to CN201380027792.5A priority patent/CN104364864B/zh
Publication of EP2669920A1 publication Critical patent/EP2669920A1/fr
Application granted granted Critical
Publication of EP2669920B1 publication Critical patent/EP2669920B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • 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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means

Definitions

  • the invention relates to a switchgear and a method for operating a switchgear, in particular a ring cable switchgear, by means of which a consumer or a generator is connected to a power line of an energy distribution network.
  • Fig.1 shows a schematic section of an energy distribution network with a ring circuit.
  • the electrical energy flow is guided via a ring or a ring cable 102, to which or to which branches are connected, which serve the further supply and distribution.
  • These branches are designed as switchgear.
  • these switchgears are referred to as ring cable switchgear 101 or Ringschaltstrom (engl. Ring Main Unit).
  • the ring cables 102 are connected to distribution systems 105.
  • Such ring cable switchgear 101 usually have three connection points 103, two belonging to the ring and a connection point is connected to a consumer or a generator. Also known are versions with only two connection points.
  • ring cable switchgear 101 with more than one branch. All systems have in common that at least the branches have a device 104 which is suitable to interrupt the flowing stream. This interruption is usually achieved with circuit breakers or switch-disconnectors. In the field of medium and high voltage applications such circuits often complex structures with circuit breakers and disconnectors are used.
  • the circuit breaker is often the largest, heaviest and most complex individual component, especially when the switchgear is designed as a gas-insulated switchgear.
  • wind turbines are often connected via the ring cable switch 101 to the power grid.
  • a ring cable switchgear 101 is located, for example, in the foot of a tower of the wind turbine.
  • circuit and size of the switchgear but this is an additional building necessary.
  • offshore wind farms and high voltages 33kV or 66kV
  • the space requirement with today's technology is enormous; This is also problematic due to the local conditions.
  • WO 2010/072622 A1 For example, a tap changer for medium-low voltage transformers based on one or more mechanical switches is known. When switching the power is passed through semiconductor switches to ensure the freedom of interruption. Also WO 2010/072622 A1 does not show an efficient way for a circuit breaker on the primary side of the transformer. Out JP 2000 354 398 A is known line switchgear with a thyristor circuit.
  • the object of the invention is to avoid the above-mentioned disadvantages and in particular to provide an efficient approach for a ring cable switchgear.
  • a switchgear is proposed with a thyristor, which is arranged in parallel with a circuit breaker, with a transformer whose primary side is connected via the parallel circuit of the thyristor circuit and the circuit breaker with a power line of a power distribution network, the secondary side of the transformer is provided for connection of a generator or a consumer.
  • the circuit breaker preferably has some strength with respect to overvoltages (e.g., in accordance with standard IEC62271).
  • the thyristor circuit can be flexibly adapted for a current up to 4000A.
  • the switchgear can be targeted to the power of connected generators, e.g. Wind turbines to be adjusted. This significantly reduces the effort, the costs, the required components and the required installation space.
  • a switchgear of small dimensions together with the wind turbine (for one or possibly more wind turbines) can be installed.
  • the secondary-side circuit can also comprise at least one switchgear.
  • a development consists in that the thyristor circuit is self-disconnecting.
  • the thyristor circuit comprises two antiparallel connected thyristor elements.
  • each thyristor element comprises at least one thyristor or at least one parallel and / or series connection of thyristors.
  • switchable semiconductor switches can be used, in particular transistors, GTOs (gate turn-off thyristor) or IGCTs (Integrated Gate Commutated Transistor).
  • Thyristors made of superconducting semiconductor material, e.g. from germanium.
  • the advantage here is the low resistance and the higher short-circuit strength.
  • a further development is that, in addition to the circuit breaker, a further circuit breaker is arranged in the branch of the thyristor circuit.
  • the switchgear is a ring cable switchgear and that the power line is a loop of a power distribution network.
  • the disconnect switch is a gas-insulated disconnect switch, a vacuum circuit breaker or an air disconnect switch.
  • control device can activate or deactivate the thyristor circuit and / or the disconnect switch.
  • the thyristor circuit may e.g. be controlled via a control current or a light ignition such as the light of a laser diode.
  • control device may comprise a combination of contactors, relays and switching elements, such as rotary switches, or may also be designed as a digital control unit, for example for remote control via a control center.
  • the control device can be used for automatically switching off the current when a network fault occurs, eg a short circuit, or for targeted switching in order to actively influence the load flow in the ring cable.
  • the switchgear is connected to a generator or to a consumer and that the generator or consumer is separable from the power line by means of the switchgear and is connectable to this.
  • a further thyristor circuit is provided, by means of which the changeover switch or a multiple changeover switch can be bypassed at least temporarily.
  • the aforementioned object is also achieved by a method for operating a switchgear with a thyristor, which is arranged in parallel with a circuit breaker, wherein the thyristor circuit and the circuit breaker are connected via a power line of a power distribution network to the primary side of a transformer, in which prior to the switching operation the circuit breaker of the thyristor circuit is turned on, in which the circuit breaker is opened, in which the thyristor circuit is switched to isolate.
  • the thyristor circuit is turned on to take over the load current during the switching of the circuit breaker.
  • a further development consists in that, when the circuit breaker is opened, the current is conducted completely across the through-connected thyristor circuit.
  • One embodiment is that the current through the circuit breaker and / or through the thyristor circuit is measured.
  • the circuit breaker and / or the thyristor circuit can be controlled accordingly.
  • Fig.2 shows a schematic ring circuit, in addition to the representation of Fig.1 still has a ring cable switchgear 106.
  • the ring cable switchgear 106 may in this case be designed as an alternative to the ring cable switchgear 101. As will be explained in more detail below, the ring cable switchgear 106 has some advantages over the ring cable switchgear 101.
  • interruption 104 e.g., the power switch
  • the interruption 104 is simplified, allowing a much more efficient construction and deployment of the ring cable switchgear 106.
  • Figure 3 shows in addition to Fig.2 a more detailed structure of the ring cable switchgear 106th
  • a switching unit 107 which has a circuit breaker 109, which enables safe isolation, in combination with a thyristor 111.
  • the circuit breaker is preferably arranged parallel to the thyristor circuit 111.
  • the switching unit 107 enables effective separation of the secondary side from the ring cable 102.
  • the circuit breaker 109 may be designed as a simple switch or - as in Figure 3 shown - be equipped with an additional grounding function 112. In combination with the grounding function 112, the disconnect switch 109 provides the switching states: on, off and earthed. Preferably, the circuit breaker 109 is designed as a mechanical switch.
  • a multi-switch 110 is provided, which is arranged parallel to a thyristor 114.
  • the switching unit 107 can on the power or load disconnect switch (see device 104 in Fig.1 ) are waived. It is also possible to use a corresponding thyristor circuit 111 functionally as part of the multiple switch of the secondary side 108.
  • FIG. 4 shows in addition to Fig.2 and Figure 3 a structure of the ring cable switchgear 106, wherein the switching unit 107 in this case has an additional circuit breaker 115 in the branch of the thyristor 111.
  • the proposed solution reduces the complexity and number of components required.
  • the invention can also be advantageously used, for example, in the connection of photovoltaic systems to the supply network. Furthermore, the invention offers a cost advantage in the expected high numbers of components of future SMART grids.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Eletrric Generators (AREA)

Claims (14)

  1. Appareillage (106) de commutation,
    comprenant un circuit (111) à thyristor, qui est monté en parallèle avec un sectionneur ( 109 ), comprenant un transformateur (113), le côté secondaire du transformateur (113) étant prévu pour la connexion d'un générateur ou d'un consommateur, caractérisé en ce que son côté primaire est relié à une ligne ( 102 ) d'énergie d'un réseau de distribution d'énergie, par l'intermédiaire du montage en parallèle du circuit ( 111 ) à thyristor et du sectionneur (109).
  2. Appareillage de commutation suivant la revendication 1, dans lequel le circuit ( 111 ) à thyristor est réalisé autobloquant.
  3. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel le circuit (111) à thyristor est monté en série avec un autre sectionneur (109).
  4. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel le circuit (111) à thyristor comprend deux éléments à thyristor montés tête-bêche.
  5. Appareillage de commutation suivant la revendication 4, dans lequel chaque élément à thyristor comprend au moins un thyristor, ou au moins un circuit série et/ou un circuit parallèle de thyristors.
  6. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel l'appareillage de commutation est un appareillage à départ de boucle et dans lequel la ligne d'énergie est une ligne en boucle d'un réseau de distribution d'énergie.
  7. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel le sectionneur est un sectionneur à isolation par du gaz, un sectionneur à vide ou un sectionneur à air.
  8. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel la commande du sectionneur et/ou du circuit à thyristor s'effectue au moyen d'un dispositif de commande.
  9. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel l'appareillage de commutation est relié à un générateur ou à un consommateur et dans lequel le générateur ou le consommateur peut, au moyen de l'appareillage de commutation, être séparé de la ligne d'énergie ou y être relié.
  10. Appareillage de commutation suivant l'une des revendications précédentes, dans lequel le côté secondaire du transformateur peut être relié par un commutateur ou par un commutateur multiple au générateur ou au consommateur.
  11. Appareillage de commutation suivant la revendication 10, dans lequel il est prévu un autre circuit à thyristor, au moyen duquel le commutateur, ou un commutateur multiple, peut être shunté au moins de temps en temps.
  12. Procédé pour faire fonctionner un appareillage (106) de commutation, comprenant un circuit (111) à thyristor, qui est monté en parallèle avec un sectionneur (109), le circuit (111) à thyristor et le sectionneur (109) étant reliés au côté primaire d'un transformateur (113), par une ligne (102) d'énergie d'un réseau de distribution d'énergie, dans lequel, avant l'opération de connexion du sectionneur (109), on rend passant le circuit (111) à thyristor, dans lequel on ouvre le sectionneur (109), dans lequel on rend isolant le circuit (111) à thyristor.
  13. Procédé suivant la revendication 12, dans lequel on rend passant le circuit (111) à thyristor, pour prendre en charge le courant de charge pendant la commutation du sectionneur.
  14. Procédé suivant l'une des revendications 12 ou 13, dans lequel on mesure le courant passant dans le sectionneur ( 109 ) et/ou dans le circuit ( 111 ) à thyristor.
EP12169977.1A 2012-05-30 2012-05-30 Installation de commutation Active EP2669920B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12169977.1A EP2669920B1 (fr) 2012-05-30 2012-05-30 Installation de commutation
ES12169977.1T ES2641645T3 (es) 2012-05-30 2012-05-30 Instalación de conmutación
US14/404,697 US9837224B2 (en) 2012-05-30 2013-04-26 Switchgear assembly
PCT/EP2013/058694 WO2013178413A1 (fr) 2012-05-30 2013-04-26 Installation de commutation
CN201380027792.5A CN104364864B (zh) 2012-05-30 2013-04-26 开关设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12169977.1A EP2669920B1 (fr) 2012-05-30 2012-05-30 Installation de commutation

Publications (2)

Publication Number Publication Date
EP2669920A1 EP2669920A1 (fr) 2013-12-04
EP2669920B1 true EP2669920B1 (fr) 2017-06-28

Family

ID=48325650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12169977.1A Active EP2669920B1 (fr) 2012-05-30 2012-05-30 Installation de commutation

Country Status (5)

Country Link
US (1) US9837224B2 (fr)
EP (1) EP2669920B1 (fr)
CN (1) CN104364864B (fr)
ES (1) ES2641645T3 (fr)
WO (1) WO2013178413A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977738B1 (fr) * 2011-07-04 2015-01-16 Mersen France Sb Sas Systeme d'interruption de courant continu apte a ouvrir une ligne de courant continu a comportement inductif
US9608477B1 (en) * 2015-09-04 2017-03-28 Hamad Musabeh Ahmed Saif Alteneiji Enhancing collection of electrical power in an energy collection system including radially connected transformation units
KR102483972B1 (ko) * 2020-11-13 2023-01-03 (주)에너캠프 복수개의 배터리팩이 장착된 파워스테이션의 충전 및 방전 제어방법
DE102022200005A1 (de) 2022-01-03 2023-07-06 Siemens Energy Global GmbH & Co. KG Windkraftanlage und Verschaltung von Windkraftanlagen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959529A (ja) * 1982-09-29 1984-04-05 Meidensha Electric Mfg Co Ltd 直流式電気鉄道の給電装置
JP2000354398A (ja) * 1999-06-10 2000-12-19 Meidensha Corp 発電機の保護装置
DE102006055575B4 (de) * 2006-11-21 2016-12-08 Siemens Aktiengesellschaft Vorrichtung zur flexiblen Energieübertragung und zum Enteisen einer Hochspannungsleitung mittels Gleichstrom
DE102008064485A1 (de) * 2008-12-22 2010-06-24 Siemens Aktiengesellschaft Stufenschalter für Mittel-Niederspannungstransformatoren
DE102010023112A1 (de) * 2010-06-07 2011-12-08 Siemens Aktiengesellschaft Energieübertragungseinrichtung
CN201985531U (zh) * 2011-01-23 2011-09-21 北京思能达节能电气股份有限公司 一种大容量组合式开关装置

Also Published As

Publication number Publication date
CN104364864B (zh) 2017-06-23
ES2641645T3 (es) 2017-11-10
WO2013178413A1 (fr) 2013-12-05
CN104364864A (zh) 2015-02-18
US20150145349A1 (en) 2015-05-28
EP2669920A1 (fr) 2013-12-04
US9837224B2 (en) 2017-12-05

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