EP1226479A1 - Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede - Google Patents

Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede

Info

Publication number
EP1226479A1
EP1226479A1 EP00971113A EP00971113A EP1226479A1 EP 1226479 A1 EP1226479 A1 EP 1226479A1 EP 00971113 A EP00971113 A EP 00971113A EP 00971113 A EP00971113 A EP 00971113A EP 1226479 A1 EP1226479 A1 EP 1226479A1
Authority
EP
European Patent Office
Prior art keywords
changeover switch
regulating
voltage
switch
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.)
Ceased
Application number
EP00971113A
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.)
VA Tech Elin Transformatoren GmbH and Co
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 EP1226479A1 publication Critical patent/EP1226479A1/fr
Ceased 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/055—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for tapped transformers or tap-changing means thereof

Definitions

  • the invention relates to a method for regulating the electrical voltage in electrical supply networks and / or consumer systems 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.
  • regulating transformers contain regulating windings with taps, which can be switched under load using the transformer tap changer.
  • the load current flow must not be interrupted or the winding stage between the taps affected 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 one another due to the first requirement, and thereby 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 the 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.
  • the tap changers of the transformers would have to be matched to the periodic switching of these high short-circuit currents.
  • the object of the invention is therefore to provide a method of the type mentioned, which on the one hand avoids the above disadvantages and on the other hand allows or ensures a higher and more efficient use of existing networks through a new consumer-oriented field of application of voltage regulation.
  • the method according to the invention is characterized in that between a network node of the supply network and / or the consumer system and at least one end user, a high, the circulating current in the case a short circuit of adjacent taps of the partial windings to the order of magnitude of the nominal current limiting stray impedance control transformer is looped in with a changeover switch to switch the partial windings of the control transformer.
  • the device for performing the method is characterized in that the
  • Control transformer is designed as a series regulator with a differential power proportional to the voltage difference to be regulated.
  • longitudinal regulators are therefore provided in the network extensions for maintaining the voltage, in which the step-over impedances of the tap changer known from the prior art and thus customary today and thus the
  • the short-circuit impedance of the control winding is increased, e.g. by widening the spreading gap to such an extent that the circulating current in the event of a short circuit in 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 to an ordinary changeover switch.
  • the control winding can be designed both as a concentric and as a disk coil winding with the appropriate taps. This principle can be used for fully transformers with regulating windings as well as autotransformers for series regulation.
  • the control winding can have both one winding end and one
  • Tapping connected to the secondary main winding or primary winding.
  • the device for voltage regulation of network outlets comes into question, its performance based on the throughput power is in the range from 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 designed on the basis of a multi-stage cam switch or a chain of relays or contactors or a chain of electronic switches, in particular semiconductor switches.
  • These versions of the switch are also simple in construction and extremely reliable in robust operation.
  • Fig. 1 is a schematic diagram when an autotransformer is arranged
  • Fig. 2 is a schematic diagram when arranging a full transformer
  • Fig. 3 is a switch based on contactors
  • Fig. 4 is a switch based on semiconductors.
  • FIG. 1 shows a device for regulating the electrical voltage between a network node 1 (shown by the arrow) and an end user 2 (likewise only indicated by an arrow), a regulating transformer 3 in the form of an autotransformer being provided for the regulation is.
  • This autotransformer has a control winding with partial windings 4.
  • 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.
  • an integrated overvoltage protection 11 can be provided on the end consumer 2 side.
  • control 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.
  • control winding is connected to the partial windings 4 via one end of the secondary 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 again has a 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.
  • the regulating transformer 3 is designed as a series regulator and has a differential power which is proportional to the voltage difference to be regulated.
  • 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 also relays takes place via control devices 8 which are connected to a voltage regulator.
  • the partial windings 4 with their taps 5 are connected 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

Procédé de régulation de la tension électrique dans des réseaux d'alimentation et/ou des installations de consommateurs électriques, ainsi que dispositif permettant de mettre en oeuvre ledit procédé. Un transformateur de régulation (3) est monté en boucle entre un noeud (1) du réseau d'alimentation et/ou de l'installation de consommateur et au moins un dispositif consommateur final (2). Ledit transformateur (3) possède une impédance de dispersion élevée, limitant le courant circulaire à l'ordre de grandeur du courant nominal en cas de court-circuit dans des prises voisines des parties de bobinage (4). Le transformateur de régulation (3) est en outre équipé d'un commutateur inverseur (7) qui inverse le passage du courant dans les parties de bobinage (4).
EP00971113A 1999-11-02 2000-10-31 Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede Ceased EP1226479A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT183899 1999-11-02
AT0183899A AT411938B (de) 1999-11-02 1999-11-02 Verfahren und vorrichtung zur regelung der elektrischen spannung in elektrischen versorgungsnetzen und/oder verbraucheranlagen
PCT/AT2000/000284 WO2001033308A1 (fr) 1999-11-02 2000-10-31 Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede

Publications (1)

Publication Number Publication Date
EP1226479A1 true EP1226479A1 (fr) 2002-07-31

Family

ID=3522119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00971113A Ceased EP1226479A1 (fr) 1999-11-02 2000-10-31 Procede de regulation de la tension electrique et dispositif permettant de mettre en oeuvre ledit procede

Country Status (6)

Country Link
US (2) US6762594B1 (fr)
EP (1) EP1226479A1 (fr)
AT (1) AT411938B (fr)
AU (1) AU1006801A (fr)
CA (1) CA2389500A1 (fr)
WO (1) WO2001033308A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AT501582B1 (de) * 2001-11-20 2007-05-15 Va Tech Elin Transformatoren G Verfahren zur regelung der elektrischen spannung in elektrischen versorgungsnetzen sowie einrichtung zur durchführung des verfahrens
DE102004046926B3 (de) * 2004-09-28 2006-01-19 Maschinenfabrik Reinhausen Gmbh Einrichtung zur Regelung der elektrischen Spannung
KR100919504B1 (ko) * 2009-03-25 2009-09-28 주식회사 피엠디네트웍스 전력 조절기 및 원격 전력 제어 장치
DE102009017197A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen
DE102009017196A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen
DE102011012080A1 (de) * 2011-02-23 2012-08-23 Maschinenfabrik Reinhausen Gmbh Stufenschalter
RU2646843C1 (ru) * 2014-01-25 2018-03-12 Чуншань СУНЬ Трансформатор с переходным импедансом на основе электронного переключателя регулирования переменного напряжения
RU2702340C1 (ru) * 2018-12-28 2019-10-08 Дмитрий Иванович Панфилов Способ управления напряжением на выходе трансформатора

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US3678371A (en) * 1968-11-25 1972-07-18 Gen Electric Lamp control circuit with high leakage reactance transformer and controlled bilateral switching means
FR2044094A5 (fr) 1969-05-08 1971-02-19 Comp Generale Electricite
US3600664A (en) * 1970-01-20 1971-08-17 Gen Electric Overcurrent protection for solid-state voltage regulator
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DE2308319B2 (de) * 1973-02-20 1976-08-26 Siemens AG, 1000 Berlin und 8000 München Elektronischer netzspannungskonstanthalter
US3824449A (en) * 1973-05-29 1974-07-16 A Hase Ferroresonant voltage regulating circuit
GB1592951A (en) 1976-10-30 1981-07-15 Marconi Co Ltd Electrical regulators
US4130789A (en) * 1977-07-25 1978-12-19 Allis-Chalmers Corporation Tap changing voltage regulator which eliminates preventive autotransformer
US4189672A (en) * 1978-03-27 1980-02-19 Peschel Stanley G Variable transformer method and apparatus for preventing short-circuit current flow
US4255734A (en) * 1978-04-03 1981-03-10 Owen D W Transformer with tapped subwindings
AT365393B (de) 1978-06-01 1982-01-11 Elin Union Ag Steuerungseinrichtung fuer einen einphasenregeltransformatorzur spannungsversorgung einer roentgenroehre
US4201938A (en) * 1978-10-02 1980-05-06 Siemens-Allis, Inc. Voltage regulator which eliminates arcing during tap changes
US4301489A (en) * 1979-12-19 1981-11-17 Siemens-Allis, Inc. Arcless tap changer utilizing static switching
GB2077964A (en) 1980-03-20 1981-12-23 Bowler Peter Ltd Voltage regulation
DE3304851A1 (de) * 1983-02-12 1984-08-16 Reinhausen Maschf Scheubeck Schaltanordnung fuer lastumschalter von stufenschaltern fuer stufentransformatoren
US4860145A (en) * 1983-11-14 1989-08-22 Oneac Corporation Tap switching protection circuit
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JP2553017Y2 (ja) * 1992-02-24 1997-11-05 東光株式会社 スイッチング電源のコイル装置用コア
GB2284939A (en) * 1993-08-15 1995-06-21 Aziz Fawzy Mekaiel Fanouse Voltage regulating transformer
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US6100673A (en) * 1999-03-24 2000-08-08 Spx Corporation Voltage control device for increasing or decreasing voltage to a load
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 WO0133308A1 *

Also Published As

Publication number Publication date
CA2389500A1 (fr) 2001-05-10
US6924631B2 (en) 2005-08-02
US6762594B1 (en) 2004-07-13
US20040130301A1 (en) 2004-07-08
AT411938B (de) 2004-07-26
WO2001033308A1 (fr) 2001-05-10
ATA183899A (de) 2003-12-15
AU1006801A (en) 2001-05-14

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