EP1446708A2 - Procede et dispositif de regulation de la tension electrique - Google Patents

Procede et dispositif de regulation de la tension electrique

Info

Publication number
EP1446708A2
EP1446708A2 EP02792562A EP02792562A EP1446708A2 EP 1446708 A2 EP1446708 A2 EP 1446708A2 EP 02792562 A EP02792562 A EP 02792562A EP 02792562 A EP02792562 A EP 02792562A EP 1446708 A2 EP1446708 A2 EP 1446708A2
Authority
EP
European Patent Office
Prior art keywords
transformer
winding
regulating
switch
changeover 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.)
Withdrawn
Application number
EP02792562A
Other languages
German (de)
English (en)
Inventor
Hansjörg Hauer
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 Oesterreich
Original Assignee
Hauer Hansjorg
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 Hauer Hansjorg filed Critical Hauer Hansjorg
Publication of EP1446708A2 publication Critical patent/EP1446708A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only

Definitions

  • the invention relates to a method for regulating the electrical voltage in electrical supply networks and / or consumer systems with a regulating transformer and a device for carrying out the method.
  • Control transformers are provided for voltage regulation of the networks in the central network nodes. Control transformers are used for step-by-step voltage regulation of electrical networks by changing the gear ratio. For this purpose, regulating transformers contain regulating windings with taps, which are switched under load using the transformer tap changer. The load current flow must not be interrupted or the winding stage between the taps concerned short-circuited during the switching processes. The second requirement results from the fact that during each switchover between two adjacent taps, they are necessarily briefly connected to each other due to the first requirement, and therefore a circuit current flows through the switch and the affected partial winding in the amount of the transformer short-circuit current, the effects of which Transformer, especially in periodic operation, cannot withstand. This transformer short-circuit current is relatively high since the internal resistance of the transformer is normally low. In addition, the tap changers of the transformers would have to be matched to the periodic switching of these high short-circuit currents.
  • Control transformer in the course of the energy flow between at least one producer and at least one end user with one of the partial windings the changeover switch to be switched over is looped in, the control transformer having a high leakage impedance which limits the circulating current to the order of magnitude of the nominal current in the event of a short circuit in adjacent taps of the partial windings.
  • the device for performing the method is characterized in that the
  • Control transformer (3) is designed as a single-winding transformer, for example as an autotransformer, or a multi-winding transformer, for example as a full transformer.
  • the regulating transformer is designed with a primary and / or secondary-side regulating winding, which is connected to the Winding ends and / or taps is connected to the winding ends and / or taps of the main winding.
  • the regulating transformer is designed with a regulating winding on the intermediate circuit side.
  • control transformer is designed as a two-winding transformer with a primary and / or secondary-side control winding.
  • the regulating transformer is designed as a series regulator with a differential power proportional to the voltage difference to be regulated.
  • regulating transformers or series regulators are therefore provided for voltage maintenance, in which the regulating winding for adapting the load-side voltage has the high intrinsic impedance or stray impedance according to the invention, which acts as a switching impedance integrated in the regulating transformer, so that the switching impedances known from the prior art and customary today of the tap changer and thus the resistance contacts are eliminated.
  • the necessity of the switching impedances results from the fact that the internal resistance and short-circuit impedance of regulating transformers are much smaller than the load impedance for reasons of voltage maintenance, so that the circuit currents occurring during the switching processes without switching resistance are equal to short-circuit currents and thus significantly higher than the operating currents. If the short-circuit impedance of the control winding is increased, e.g. by widening the spreading gap, to such an extent that the circuit current occurring during the switching operations in the event of a short-circuit of adjacent taps is of the order of magnitude of the nominal current, the additional switching impedances are not required and the tap changer is simplified an ordinary switch.
  • the control winding can be designed as desired, for example as a concentric or as a disk coil winding, with the corresponding taps. This principle can be used for fully transformers with regulating windings as well as autotransformers for series regulation.
  • the control winding can be connected to the winding ends and / or taps of the primary and / or secondary and / or intermediate circuit-side main winding both via the winding ends and via taps.
  • the device Since the device is primarily suitable for voltage regulation of network outlets, its performance based on the throughput is in the range of a few 10 kVA to a few 10 MVA.
  • the changeover switch is a load changeover switch without resistance contact and having only main contacts.
  • a diverter switch designed in this way is an economical solution.
  • the changeover switch is a load selector without resistance contact.
  • This design of the switch is also extremely simple in construction and economical to manufacture.
  • the changeover switch can also be based on a multi-stage cam switch or a chain of relays or contactors or their components or a chain of electronic switches, in particular semiconductor switches, can be formed.
  • These versions of the switch are also simple in construction and extremely reliable in robust operation.
  • these switches can be based on all switching principles, such as air-open switching systems, switching systems under oil or SF6, and vacuum switching systems.
  • Fig. 1 is a schematic diagram when arranging an autotransformer with a secondary-side control winding
  • Fig. 2 is a schematic diagram when arranging a full transformer with secondary-side control winding, the one with its winding end
  • FIG. 3 is a schematic diagram with the arrangement of an autotransformer with a primary-side control winding
  • Fig. 4 is a schematic diagram with the arrangement of a full transformer with primary-side control winding, which has a tap with a winding
  • Fig. 6 is a switch based on semiconductors.
  • FIG. 1 shows a device for regulating the electrical voltage between a generator 1 (shown by the arrow) and a final consumer 2 (likewise indicated only by an arrow), a regulating transformer 3 in the form of an autotransformer being provided for the regulation.
  • This autotransformer has a control winding with partial windings 4 on the secondary side.
  • the control winding is connected to the primary winding 6 of the autotransformer via a tap 5, for example via a center tap. This allows both an increase and a decrease in the end-user voltage.
  • the taps 5 of the control winding are optionally connected to the output to the end user 2 via a changeover switch 7.
  • the switch 7 is controlled with the control device 8 unregulated or regulated via a voltage regulator 10.
  • the switching takes place step by step by closing a switching path adjacent to the closed switching path and then opening the original switching path. As a result, the end-user voltage can be increased or decreased.
  • an integrated overvoltage protection 11 can be provided on the end consumer 2 side.
  • the regulating transformer 3 in the embodiment as an autotransformer has a widened spread gap 9. This increase in the leakage impedance limits the circulating current to the order of magnitude of the nominal current in the event of a short circuit.
  • a regulating transformer 3 in the form of a full transformer with a regulating winding on the secondary side being provided for the regulation.
  • the control winding is connected to the partial windings 4 via their winding end to a winding end of the secondary-side main winding of the control transformer 3.
  • a switch 7 with its control device 8 is again provided on the partial windings 4.
  • the control transformer 3 also has one widened spreading gap 9. The leakage impedance of the secondary main winding 14 is not increased.
  • the changeover switch 7 is designed as a multi-stage cam switch and corresponds to the taps 5 of the partial windings 4.
  • FIG. 3 shows a device for regulating the electrical voltage between a generator 1 and an end user 2, a regulating transformer 3 in the form of an autotransformer being provided for the regulation.
  • This autotransformer has a regulating winding with partial windings 4 on the primary side.
  • the control winding is connected to the primary winding 6 of the autotransformer via a tap 5, for example via a center tap. This allows both an increase and a decrease in the end-user voltage.
  • the taps 5 of the control winding are optionally connected to the output to the end user 2 via a changeover switch 7.
  • the switch 7 is controlled with the control device 8 unregulated or regulated via a voltage regulator 10.
  • the switching takes place step by step by closing a switching path adjacent to the closed switching path and then opening the original switching path. As a result, the end-user voltage can be increased or decreased.
  • an integrated overvoltage protection 11 can be provided on the end consumer 2 side.
  • the regulating transformer 3 in the embodiment as an autotransformer has a widened spread gap 9. This increase in the leakage impedance limits the circulating current to the order of magnitude of the nominal current in the event of a short circuit.
  • a control transformer 3 is provided for the control in the execution of a full transformer with primary-side control winding.
  • the control winding is connected to the partial windings 4 via its winding tap to a winding tap of the main winding of the regulating transformer 3.
  • a switch 7 with its control device 8 is again provided on the partial windings 4.
  • the regulating transformer 3 also has a widened leakage gap 9 again. The leakage impedance of the secondary main winding 14 is not increased.
  • the changeover switch 7 is designed as a multi-stage cam switch and corresponds to the taps 5 of the partial windings 4.
  • the partial windings 4 are connected with their taps 5 to a series of contactors 10, which carry out the voltage regulation in accordance with the changeover switch 7 in FIGS. 1 and 2.
  • the control of the individual contactors 12 or relays takes place via control devices 8, which are connected to a voltage regulator.
  • the partial windings 4 are connected with their taps 5 to a series of electronic switches 13, in particular semiconductor switches, which carry out the voltage regulation in accordance with the changeover switch 7 in FIGS. 1 and 2.
  • the individual semiconductor switches are controlled by electronic devices which are connected to the voltage regulator.

Abstract

L'invention concerne un procédé et un dispositif de régulation de la tension électrique dans des réseaux d'alimentation électrique et/ou des systèmes récepteurs au moyen d'un transformateur de régulation. Ledit transformateur de régulation (3) est monté en boucle avec un commutateur (7) commutant les enroulements partiels (4) du transformateur de régulation (3), dans le sens du flux d'énergie, entre au moins un générateur (1) et au moins un récepteur terminal (2). Par ailleurs, ledit transformateur de régulation (3) présente une impédance de fuite élevée, limitant le courant du circuit à l'ordre de grandeur du courant nominal en cas de court-circuit de branchements adjacents (5) des enroulements partiels (4). Ledit transformateur de régulation (3) est conçu en tant que transformateur à enroulement simple ou multiple, par exemple en tant que transformateur complet.
EP02792562A 2001-11-20 2002-11-19 Procede et dispositif de regulation de la tension electrique Withdrawn EP1446708A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0182301A AT501582B1 (de) 2001-11-20 2001-11-20 Verfahren zur regelung der elektrischen spannung in elektrischen versorgungsnetzen sowie einrichtung zur durchführung des verfahrens
AT18232001 2001-11-20
PCT/AT2002/000321 WO2003044611A2 (fr) 2001-11-20 2002-11-19 Procede et dispositif de regulation de la tension electrique

Publications (1)

Publication Number Publication Date
EP1446708A2 true EP1446708A2 (fr) 2004-08-18

Family

ID=3689054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02792562A Withdrawn EP1446708A2 (fr) 2001-11-20 2002-11-19 Procede et dispositif de regulation de la tension electrique

Country Status (6)

Country Link
US (1) US20050017696A1 (fr)
EP (1) EP1446708A2 (fr)
AT (1) AT501582B1 (fr)
AU (1) AU2002358396A1 (fr)
CA (1) CA2467886A1 (fr)
WO (1) WO2003044611A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659463A (zh) * 2013-09-03 2016-06-08 赖茵豪森机械制造公司 用于利用可调节的本地电网变压器控制本地电网的稳定性的设备和方法

Families Citing this family (8)

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JP4179539B2 (ja) * 2003-01-15 2008-11-12 富士通株式会社 化合物半導体装置及びその製造方法
DE102004046926B3 (de) * 2004-09-28 2006-01-19 Maschinenfabrik Reinhausen Gmbh Einrichtung zur Regelung der elektrischen Spannung
DE102005017747A1 (de) * 2005-04-12 2006-10-26 Siemens Ag Antrieb für ein sich längs einer Fahrbahn bewegendes Fahrzeug, insbesondere eine Magnetschwebebahn
DE102009014243A1 (de) * 2009-03-20 2010-09-23 A. Eberle Gmbh & Co. Kg Ortsnetztrafo, bzw. Schaltung für einen elektrischen Verteiltransformator
IT1397121B1 (it) * 2009-04-29 2012-12-28 Pta Group S R L Dispositivo di seduta per un carrello
DE102012010115A1 (de) 2012-05-23 2013-11-28 A. Eberle Gmbh & Co. Kg Schaltung zur Regelung und/oder Einstellung einer Wechselspannung
DE102013211653A1 (de) * 2013-06-20 2014-12-24 Siemens Aktiengesellschaft Regelbarer Ortsnetztransformator
CN104777379A (zh) * 2015-03-31 2015-07-15 华北电力大学 一种单相可控并联电抗器动态特性测试系统

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DE2109719A1 (de) * 1971-03-02 1972-09-07 Rohde & Schwarz Netzgerat
DE2446985A1 (de) * 1974-10-02 1976-04-15 Giesenhagen Kg Verfahren und schaltung zum stabilisieren von wechselspannungen
AT365393B (de) * 1978-06-01 1982-01-11 Elin Union Ag Steuerungseinrichtung fuer einen einphasenregeltransformatorzur spannungsversorgung einer roentgenroehre
GB2077964A (en) * 1980-03-20 1981-12-23 Bowler Peter Ltd Voltage regulation
WO1987001554A1 (fr) * 1985-09-06 1987-03-12 Quietlite International, Inc. Onduleur a semiconducteur comportant un transformateur a noyaux multiples
DE4410902A1 (de) * 1994-03-29 1994-10-13 Wolf Gmbh Richard Netzgerät
JPH08124768A (ja) * 1994-10-27 1996-05-17 Shiiku Densetsu:Kk 負荷時タップ切替型交流定電圧装置
AT411938B (de) * 1999-11-02 2004-07-26 Hansjoerg Dipl Ing Dr Hauer Verfahren und vorrichtung zur regelung der elektrischen spannung in elektrischen versorgungsnetzen und/oder verbraucheranlagen

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See references of WO03044611A3 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659463A (zh) * 2013-09-03 2016-06-08 赖茵豪森机械制造公司 用于利用可调节的本地电网变压器控制本地电网的稳定性的设备和方法
CN105659463B (zh) * 2013-09-03 2018-09-18 赖茵豪森机械制造公司 用于利用可调节的本地电网变压器控制本地电网的稳定性的设备和方法

Also Published As

Publication number Publication date
AT501582B1 (de) 2007-05-15
US20050017696A1 (en) 2005-01-27
AU2002358396A1 (en) 2003-06-10
WO2003044611A3 (fr) 2003-12-18
AT501582A1 (de) 2006-09-15
AU2002358396A8 (en) 2003-06-10
WO2003044611A2 (fr) 2003-05-30
CA2467886A1 (fr) 2003-05-30

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