EP1794661B1 - Dispositif de reglage de la tension electrique - Google Patents

Dispositif de reglage de la tension electrique Download PDF

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Publication number
EP1794661B1
EP1794661B1 EP05775005A EP05775005A EP1794661B1 EP 1794661 B1 EP1794661 B1 EP 1794661B1 EP 05775005 A EP05775005 A EP 05775005A EP 05775005 A EP05775005 A EP 05775005A EP 1794661 B1 EP1794661 B1 EP 1794661B1
Authority
EP
European Patent Office
Prior art keywords
winding
tap
switching element
taps
control
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.)
Not-in-force
Application number
EP05775005A
Other languages
German (de)
English (en)
Other versions
EP1794661A1 (fr
Inventor
Dieter Dohnal
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
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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP1794661A1 publication Critical patent/EP1794661A1/fr
Application granted granted Critical
Publication of EP1794661B1 publication Critical patent/EP1794661B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 device for controlling the electrical voltage in supply networks.
  • control transformers In today's widespread central power supply usually takes place a voltage control by means of control transformers in the central network node of the respective high or medium voltage grids.
  • the control windings of the respective control transformers are provided with winding taps;
  • tap changers can be switched without interruption between adjacent winding taps under load.
  • tap changers can be divided into two types in principle: Those of the type of resistor high-speed switch, in which only briefly resistive resistive ohmic resistances to limit the current flowing in the switching circuit current are present and therefore a fast switching between the winding taps, as well as those of the type of reactor switch , in which inductive Studentsschaltimpedanzen are provided, whereby a slow and continuous switching is possible.
  • Voltage Regulators are those of the Auto-Boosters ® , These devices are much simpler in structure and allow an upward control in 4 stages of 2 1 ⁇ 2% or 1 1 ⁇ 2%, ie a total of + 10 or + 6 %.
  • the switch should be designed as a multi-stage cam switch, optionally also be formed from a chain of relays or shooters or eventually from a chain of electronic switches, in particular thyristor switch exist. The number of possible positions corresponds to the number of required switching elements of the switch.
  • a disadvantage of this known prior art is that at least in the case of the full transformer a separate trunk and control winding must be present. In order to drive the leakage inductance of each stage so high that the step short-circuit current only reaches the level of the rated current, a short stray channel is required. This results in a separate, short control winding that increases the width and depth of the transformer. In many cases, this additional expenditure on transformer costs exceeds the benefit of the elimination of the overvoltage resistors. Furthermore, the control behavior is difficult; the known arrangement is particularly unsuitable for parallel circuits.
  • the object of the invention is to provide a simple and cost-effective device for controlling the electrical voltage for distribution transformers and voltage regulators ("voltage regulators”) with as few switching elements.
  • the device according to the invention is preferably provided for the regulation of distribution transformers with a small control range of, for example, +/- 5% in 2.5% steps, for a total of, for example, 5 steps.
  • the device according to the invention is suitable both for oil and dry transformers. Their particular advantage is that only a minimal increase in the dimensions of the respective distribution transformer is required and high availability and reliability is given. This is due to the fact that the device according to the invention is designed as a switching device which dispenses with mechanically moved selectors or load selectors of an on-load tap-changer.
  • the device according to the invention also has a low complexity, in particular only a few components as well as switching elements. For an embodiment explained below with five selectable voltage levels, for example, only four Switching elements required. These switching elements can be carried out particularly advantageous as each antiparallel thyristor pair or vacuum switch cell.
  • FIG. 1 a first device according to the invention is shown schematically. It is shown a main winding 1 of a control transformer whose winding end 2 is guided to the center of a separate control winding 3 of the control transformer.
  • the control winding 3 here has three separate taps A1 ... A3.
  • the taps A1 and A3 are located respectively at the opposite ends of the control winding 3, the tap A2 exactly in the middle, at the point where the connection with the winding end 2 of the main winding 1 is made.
  • the control winding 3 is dimensioned such that the effective winding length between the taps A1 and A2 as well as between the taps A2 and A3 here corresponds to 5% of the winding length of the main winding 1 here.
  • other winding lengths are possible.
  • Each of the taps A1 ... A3 is connected to the input of a switching element, here a vacuum switch V1 ... V3.
  • the output of the third vacuum switch V3, which is connected to the tap A3 at the other end of the control winding 3, is electrically connected to the output of the first vacuum switch V1 connected.
  • the center of the reactor winding 4 leads to the discharge.
  • a tap 5 is provided on the reactor winding 4.
  • the voltage in this example can thus be regulated in the range +/- 5% in 2.5% increments.
  • FIG. 2 shows for the in FIG. 1 Example shown a table of the five different possible voltage levels as a function of the position of the respective vacuum switch V1 ... V4.
  • c means the closed position ("closed")
  • o stands for the open position of the respective switch.
  • the control of the vacuum switch V1 ... V4 is simple way z. B. with cam switches possible because a very simple operating sequence, regardless of the switching direction "higher voltage” or “lower voltage” results by simply switching on or off.
  • FIG. 3 shows the different positions of the vacuum switches V1 ... V4 in FIG. 1 shown and explained above circuit at the individual voltage levels, as shown in the table in FIG. 2 is shown.
  • FIG. 4 shows an inventive arrangement as part of a voltage regulator for control on the load side. It can be seen that the input voltage Us is applied to the main winding 1 whose end leads to the center tap of the control winding 3, which is the tap A2 shown. Again at the winding spacing of 5% of the main winding, the taps A1 and A3 are provided at the two ends of the control winding 3. The position and function of the vacuum switch V1 ... V4 have already been explained, as well as the reactor winding 4 shown. Still shown here are a current transformer 6 and a voltage converter 7 on the load side. This can be used to determine the actual values of current and voltage at the load in a known manner.
  • FIG. 5 shows an inventive arrangement for control on the input (source) side of a voltage regulator. The function is unchanged.
  • FIG. 6 shows a further arrangement according to the invention, here with anti-parallel thyristor pairs Th1 ... Th4 as switching elements.
  • the switching elements described are both, as explained above, realized by vacuum switch, but also by mechanical switches or just by thyristor.
  • the embodiment shown here with thyristor switches has the advantage that the arrangement according to the invention as a whole results in a complete switch, without any mechanically moved actuating elements.
  • the in FIG. 2 shown table for the expert, for example, readily convertible into an electrical control logic.
  • FIG. 1 illustrated circuit arrangement to expand cascade by more than three taps are provided on the control winding 3 and each of these additional taps is also connected by a separate switching element.
  • An example of this with only one extra tap A4 is in FIG. 7 shown.
  • the control winding 3 is dimensioned in such an embodiment of the invention such that the winding length between all taps A1 ... A4 is the same, for example, in each case 5% of the winding length of the main winding 1 amounts.
  • the corresponding state table - analogous to in FIG. 2 shown illustration - to supplement the additional achievable according to the invention voltage levels. This cascade principle can be extended as desired.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Control Of Electrical Variables (AREA)
  • Ac-Ac Conversion (AREA)
  • Control Of Eletrric Generators (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Power Conversion In General (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Claims (5)

  1. Dispositif servant au réglage de la tension électrique dans des réseaux d'alimentation avec un transformateur de réglage,
    le transformateur de réglage présentant dans chaque phase un enroulement principal et un enroulement de réglage séparé, équipé de prises
    chaque prise étant commutable au moyen d'éléments de commutation et pouvant être relié à une dérivation,
    caractérisé en ce que
    l'enroulement de réglage (3) présente trois prises (A1 ...A3),
    la première et la troisième prise (A1 et A3) étant agencées respectivement à une fin de l'enroulement (3) et la deuxième prise (A2) étant agencée exactement au milieu de l'enroulement de réglage (3),
    la fin de l'enroulement principal (1) étant relié à la deuxième prise (A2),
    l'enroulement de réglage (3) étant dimensionné de sorte que la longueur d'enroulement comprise entre la première et la deuxième prise (A1 et A2) ainsi qu'entre la deuxième et la troisième prise (A2 et A3) soit respectivement X % de la longueur de l'enroulement principal (1), X étant un nombre naturel,
    la première prise (A1) étant en connexion électrique avec l'entrée d'un premier élément de commutation (V1, Th1), la deuxième prise (A2) avec un deuxième élément de commutation (V2, Th2) et la troisième prise (A3) avec l'entrée d'un troisième élément de commutation (V3, Th3),
    la sortie du premier élément de commutation (V1, Th1) ainsi que la sortie du deuxième élément de commutation (V2, Th2) étant respectivement en connexion avec l'une des deux extrémités d'un enroulement de réacteur (4),
    la sortie du troisième élément de commutation (V3, Th3) étant reliée électriquement à la sortie du premier élément de commutation (V1, Th1),
    un élément de commutation supplémentaire (V4, Th4) étant agencé parallèlement à l'enroulement de réacteur
    et exactement le centre de l'enroulement du réacteur (4) mène à la dérivation.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la valeur pour X est égale à 5.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    des interrupteurs sous vide (V1...V4) sont prévus comme éléments de commutation.
  4. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    des commutateurs à semi-conducteurs, notamment des commutateurs à thyristors (Th1...Th4) sont prévus comme éléments de commutation.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'enroulement de réglage (3) présente pour l'augmentation du nombre de prises de tension possibles une ou plusieurs prises supplémentaires (A4) avec chacune un élément de commutation additionnel (V5, Th 5) qui est/sont mis en circuit en cascade.
EP05775005A 2004-09-28 2005-07-22 Dispositif de reglage de la tension electrique Not-in-force EP1794661B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004046926A DE102004046926B3 (de) 2004-09-28 2004-09-28 Einrichtung zur Regelung der elektrischen Spannung
PCT/EP2005/007999 WO2006034744A1 (fr) 2004-09-28 2005-07-22 Dispositif de reglage de la tension electrique

Publications (2)

Publication Number Publication Date
EP1794661A1 EP1794661A1 (fr) 2007-06-13
EP1794661B1 true EP1794661B1 (fr) 2009-10-07

Family

ID=35079368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775005A Not-in-force EP1794661B1 (fr) 2004-09-28 2005-07-22 Dispositif de reglage de la tension electrique

Country Status (13)

Country Link
US (1) US7656138B2 (fr)
EP (1) EP1794661B1 (fr)
JP (1) JP4756046B2 (fr)
KR (1) KR101134998B1 (fr)
CN (1) CN100498633C (fr)
AT (1) ATE445179T1 (fr)
BR (1) BRPI0513137A (fr)
CA (1) CA2581875C (fr)
DE (2) DE102004046926B3 (fr)
ES (1) ES2334689T3 (fr)
HK (1) HK1103252A1 (fr)
RU (1) RU2361263C2 (fr)
WO (1) WO2006034744A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100857236B1 (ko) 2006-11-22 2008-09-05 한일월드(주) 3상 전압용 전압조정장치 및 그 제어방법
KR100908783B1 (ko) * 2007-07-25 2009-07-22 한국전력공사 무정전 기능이 구비된 스위칭 장치 및 이를 이용한 변압기권수비 조절 방법 및 변압기 전압 조절 방법
KR100938253B1 (ko) * 2007-11-05 2010-01-21 박해용 리액터 전압 조정기
DE102008064485A1 (de) * 2008-12-22 2010-06-24 Siemens Aktiengesellschaft Stufenschalter für Mittel-Niederspannungstransformatoren
DE102009017196A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen
DE102009017197A1 (de) * 2009-04-09 2010-10-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Halbleiter-Schaltelementen
DE102010050882A1 (de) * 2010-11-09 2012-05-10 Maschinenfabrik Reinhausen Gmbh Stufenschalter
CN102075006A (zh) * 2011-01-19 2011-05-25 西安盟创电器有限公司 村口增压器
US9898019B2 (en) * 2012-12-27 2018-02-20 Xiaoming Li Thyristor assisted on-load tap changer and method thereof
RU2549377C1 (ru) * 2014-01-14 2015-04-27 Закрытое акционерное общество "ЧЕБОКСАРСКИЙ ЭЛЕКТРОМЕХАНИЧЕСКИЙ ЗАВОД" Устройство для регулирования напряжения сети
DE102014100949B4 (de) * 2014-01-28 2016-12-29 Maschinenfabrik Reinhausen Gmbh Laststufenschalter nach dem Reaktorschaltprinzip
DE102015102727A1 (de) * 2015-02-25 2016-08-25 Maschinenfabrik Reinhausen Gmbh Verfahren zum Ändern der aktiven Windungszahl einer Regelwicklung in einer elektrischen Anlage und elektrische Anlage mit einer Regelwicklung
CN105448548B (zh) * 2015-12-21 2018-01-09 浙江宝威电气有限公司 变压器有载调压开关
US10890932B2 (en) 2018-08-20 2021-01-12 Eaton Intelligent Power Limited Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core
US11735923B2 (en) 2020-07-28 2023-08-22 Eaton Intelligent Power Limited Voltage regulation device that includes a converter for harmonic current compensation and reactive power management

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Also Published As

Publication number Publication date
CA2581875A1 (fr) 2006-04-06
ATE445179T1 (de) 2009-10-15
CA2581875C (fr) 2013-07-02
RU2361263C2 (ru) 2009-07-10
JP2008515362A (ja) 2008-05-08
US20090140705A1 (en) 2009-06-04
KR20070057775A (ko) 2007-06-07
ES2334689T3 (es) 2010-03-15
DE102004046926B3 (de) 2006-01-19
RU2007116122A (ru) 2008-11-20
JP4756046B2 (ja) 2011-08-24
WO2006034744A1 (fr) 2006-04-06
US7656138B2 (en) 2010-02-02
KR101134998B1 (ko) 2012-04-09
HK1103252A1 (en) 2007-12-14
DE502005008291D1 (fr) 2009-11-19
CN1965276A (zh) 2007-05-16
CN100498633C (zh) 2009-06-10
BRPI0513137A (pt) 2008-04-29
EP1794661A1 (fr) 2007-06-13

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