EP1006539B1 - Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande - Google Patents

Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande Download PDF

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Publication number
EP1006539B1
EP1006539B1 EP98204085A EP98204085A EP1006539B1 EP 1006539 B1 EP1006539 B1 EP 1006539B1 EP 98204085 A EP98204085 A EP 98204085A EP 98204085 A EP98204085 A EP 98204085A EP 1006539 B1 EP1006539 B1 EP 1006539B1
Authority
EP
European Patent Office
Prior art keywords
opening
optimal
transients
closing operation
basis
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.)
Expired - Lifetime
Application number
EP98204085A
Other languages
German (de)
English (en)
Other versions
EP1006539A1 (fr
Inventor
Carlo Gemme
Carlo Cereda
Francesco Perdoncin
Andrea Moratto
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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
Priority to DE69826134T priority Critical patent/DE69826134T2/de
Application filed by ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to ES98204085T priority patent/ES2229444T3/es
Priority to AT98204085T priority patent/ATE275755T1/de
Priority to EP98204085A priority patent/EP1006539B1/fr
Priority to TW088118960A priority patent/TW527489B/zh
Priority to CNB991258878A priority patent/CN1251263C/zh
Priority to KR1019990054627A priority patent/KR20000047874A/ko
Publication of EP1006539A1 publication Critical patent/EP1006539A1/fr
Application granted granted Critical
Publication of EP1006539B1 publication Critical patent/EP1006539B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • 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
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • 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
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H2009/566—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle with self learning, e.g. measured delay is used in later actuations

Definitions

  • the present invention relates to a control and monitoring device for the opening/closing of operating elements such as circuit-breakers, disconnectors and the like, in an electricity distribution and/or transmission network.
  • the present invention relates to a control and monitoring device that makes it possible, by implementing suitable monitoring strategies, to perform the electrical operation in a "synchronous" manner in relation to the network parameters, which is to say in such a manner that the moment of operation is located within a time window containing the optimal moment in which the electrical transients are minimal.
  • the optimal moment occurs when there is zero voltage.
  • US patent 5,119,260 offers a choice of the optimal moment in relation to the opening operation on an inductive load only.
  • a moment that is out of phase by a fixed amount of time in relation to the passage through the current zero is pre-set as the optimal moment.
  • the device is equipped with a position sensor that supplies information on the position of the contacts in relation to one another to a controller that sends a command to suitable actuation means in order to accelerate or decelerate the motion of the mobile contact, changing the operating time.
  • the operating time is adjusted in order to obtain the opening of the contracts as close as possible to the current zero, which is assumed to be symmetrical and at a constant frequency.
  • the principal task of the present invention it to provide a control and monitoring device for the opening/closing of operating elements such as circuit breakers, disconnectors and the like that is able to choose the optimal operating moment taking the status of the neutral, the nature of the network and load and the type of operation to be performed into account.
  • one object of the present invention is to provide a control and monitoring device that is able to choose the optimal operating moment by implementing an adaptive strategy.
  • a further object of the present invention is to provide a control and monitoring device that is able to choose an optimal operating moment following a strategy that is easy to develop and easy to implement in practice.
  • a further but not the last object of the present invention is to provide a control and monitoring device that is easy to manufacture at low cost.
  • control and monitoring device for actuating means for the opening/closing of operating elements, comprising current and voltage measuring means and a processing unit that performs the following functions:
  • Said optimal value is determined using an adaptive procedure that comprises the following phases:
  • the control and monitoring device as in the invention (shown within the broken line and indicated by the arrow 1), comprises a processing unit 4 and means for measuring the current and voltage 2 and 3, in the form, for example, of current and voltage transformers. Said measuring means 2 and 3 perform a measurement of the current and voltage of the phase 5 and send the signals indicating the measurements made to the processing unit 4.
  • the processing unit 4 receives an automatic or manual external command 7.
  • the processing unit 4 determines an optimal current and/or voltage value, on the basis of an adaptive procedure, at which to execute the opening/closing operation.
  • the adaptive procedures adopted by the processing unit 4 can be structured in different ways as described in detail below.
  • Said adaptive procedures comprise a phase in which the electrical transients following an opening/closing operation and/or following the injection of a suitable signal in the electrical network (such as a voltage pulse, for example) are measured, and a phase in which the optimal current or voltage value at which to execute the opening/closing operation is updated.
  • a suitable signal in the electrical network such as a voltage pulse, for example
  • the update is performed on the basis of the measurement of the current or voltage transients, executed using measuring means 2 and 3, and on the basis of possible operating configurations that were previously saved in the processing unit 4.
  • the processing unit 4 proceeds to perform a predictive calculation of the sequence of the moments in which the current or voltage assumes said optimal value.
  • the predictive calculation makes it possible to determine a time window in which to execute the opening/closing operation.
  • the processing unit 10 sends the command 8 to the actuator means 9 that move (arrow 10) the operating element 6, which could be a circuit breaker, for example.
  • the movement of the operating element 6 can be adjusted in real time during the operation itself to ensure that the operation is performed inside the time window, taking any changes due to wear of the components into account if necessary.
  • the processing unit 4 determines the optimal values 20 and 21 for the closing and opening operation on the basis of possible configurations 22 and 23 for the closing and the opening operations respectively that are saved in the processing unit 4.
  • the opening/closing operation 24 is executed on the basis of the calculation of the optimal values 20 and 21.
  • the measuring means 2 and 3 in Figure 1 measure the transients subsequent to the closing/opening operation (step 25).
  • the optimal closing/opening values will be updated using different closing/opening configurations from those used previously (arrows 26 and 27).
  • the closing/opening operation will be executed again and if the electrical transients exceed said predetermined threshold again a new optimal value will be determined.
  • the optimal closing/opening values 20 and 21 can be corrected with the quantities 28 and 29 that take the residual energy present in the load 12 in Figure 1 into account.
  • the residual energy, and therefore the quantities 28 and 29, are determined a priori on the basis of the time constant that characterises the discharge transient of the load, if it is capacitative, or on the basis of the opening modes of the previous operation and on the basis of the residual flows present if the load is inductive.
  • Suitable signals such as voltage pulses for example, are injected in the electrical network (step 30) before each closing/opening operation 34.
  • the injection of the pulses can be made using the generator 11 in Figure 1 and can be performed both on the network side, in the direction of arrow 13, and on of the load side, in the direction of arrow 14.
  • Said injected signals cause network transients that are measured (step 31).
  • the measuring of the transients which preferably involves spectrum analysis, makes it possible to determine the type of load in advance. This makes it possible for the processing unit 10 to choose the most suitable opening 32 and closing 33 configurations more easily.
  • the processing unit 10 proceeds to determine the optimal closing/opening moments 38 and 39 and then executes the operation 34.
  • the electrical transients subsequent to the electrical operation 34 are then measured 35. If the said transients exceed a predetermined threshold the procedure is repeated (arrow 37).
  • the optimal values 38 and 39 are preferably corrected by the quantities 40 and 41 that take the residual energy present in the load 12 in Figure 1 into account.
  • the residual energy can be evaluated following the injection 30 of a suitable signal on the load side (arrows 42 and 43).
  • control and monitoring device as in the invention performs its set tasks.
  • the adoption of an adaptive procedure makes it possible for the control and monitoring device to select the optimal closing/opening value, always taking the changes in the status of the network and load into account.

Claims (6)

  1. Dispositif de contrôle et de surveillance pour des moyens d'actionnement pour l'ouverture/fermeture d'éléments électriques de commande, comprenant des moyens de mesure de courant et de tension et une unité de traitement, caractérisé en ce que ladite unité de traitement exécute les fonctions suivantes :
    A) déterminer la valeur optimale de courant et/ou de tension à laquelle effectuer l'opération d'ouverture/fermeture ;
    B) déterminer, en suivant une commande d'opération et un calcul prédictif, une succession de moments dans lesquels le courant ou la tension prend ladite valeur optimale ;
    C) déterminer une fenêtre de temps pour l'ouverture/fermeture desdits éléments de commande qui contient un des moments dans la succession déterminée ;
    D) transmettre une commande au dit moyen d'actionnement qui déplace les éléments de commande sur la base de la fenêtre de temps déterminée et des temps de commande desdits éléments électriques de commande ;
    ladite fonction A) étant effectuée en utilisant une procédure adaptative qui comprend les phases suivantes :
    A1) mesurer les transitoires électriques du réseau suivant une opération d'ouverture/fermeture et/ou suivant une injection prédéterminée de signaux de tension et/ou de courant dans le réseau électrique et actualiser ladite valeur optimale de courant ou de tension à laquelle effectuer l'opération d'ouverture/fermeture sur la base des informations obtenues à partir de la mesure desdites transitoires électriques et sur la base d'une configuration de commande possible sauvegardée précédemment dans ladite unité de traitement.
  2. Dispositif de contrôle et de surveillance selon la revendication 1, caractérisé en ce que ladite phase A1) comprend les étapes suivantes :
    A11) déterminer une valeur optimale de courant et/ou de tension à laquelle effectuer l'opération de fermeture sur la base d'une configuration possible pour l'opération de fermeture précédemment sauvegardée dans ladite unité de traitement ;
    A12) déterminer une valeur optimale de courant et/ou de tension à laquelle effectuer l'opération d'ouverture sur la base d'une configuration possible pour l'opération d'ouverture précédemment sauvegardée dans ladite unité de traitement ;
    A13) mesurer les transitoires électriques du réseau suivant une opération d'ouverture/fermeture basée sur ladite valeur optimale ;
    A14) si les transitoires dépassent un seuil prédéterminé, actualiser les valeurs optimales auxquelles effectuer l'opération d'ouverture/fermeture en utilisant une configuration pour l'opération de fermeture et une configuration pour l'opération d'ouverture différentes de celles précédemment utilisées ;
    A15) mesurer les transitoires électriques du réseau suivant une opération d'ouverture/fermeture basée sur ladite valeur optimale actualisée ;
    A16) répéter par itération les étapes A14) et A15) si lesdites transitoires dépassent ledit seuil prédéterminé.
  3. Dispositif de contrôle et de surveillance selon la revendication 1, caractérisé en ce que ladite phase A1) comprend les étapes suivantes :
    a11) injecter un signal de tension et/ou de courant dans le réseau électrique ;
    a12) mesurer les transitoires électriques du réseau provoquées par ledit signal de tension et/ou de courant ;
    a13) si les transitoires dépassent un seuil prédéterminé, déterminer une valeur de tension optimale à laquelle effectuer l'opération de fermeture sur la base d'une configuration possible pour l'opération de fermeture précédemment sauvegardée dans ladite unité de traitement, ladite configuration possible étant déterminée sur la base de la mesure de ladite transitoire ;
    a14) si les transitoires sont présents, déterminer une valeur optimale de courant et/ou de tension à laquelle effectuer l'opération de fermeture sur la base d'une configuration possible pour l'opération de fermeture précédemment sauvegardée dans ladite unité de traitement, ladite configuration possible étant déterminée sur la base de la mesure de ladite transitoire ;
    a15) mesurer les transitoires électriques du réseau suivant une opération d'ouverture/fermeture basée sur ladite valeur optimale ;
    a16) répéter par itération les étapes a11) à A15) et actualiser lesdites valeurs optimales si lesdites transitoires dépassent ledit seuil prédéterminé.
  4. Dispositif de contrôle et de surveillance selon la revendication 3, caractérisé en ce que ladite impulsion de tension est injectée en amont et/ou en aval dudit élément électrique de commande.
  5. Dispositif de contrôle et de surveillance selon une ou plusieurs des revendications 3 à 4, caractérisé en ce que ladite mesure des transitoires générées par l'injection d'une impulsion de tension dans le réseau électrique est effectuée en utilisant une procédure d'analyse spectrale.
  6. Dispositif de contrôle et de surveillance selon une ou plusieurs des revendications précédentes, caractérisé en ce que ladite valeur optimale de courant et/ou de tension pour l'opération de fermeture est corrigée avec une quantité qui prend en compte l'énergie résiduelle présente dans la charge au moment de l'opération, ladite quantité étant déterminée sur la base de la constante de temps nominale ou mesurée qui caractérise la transitoire de décharge de charges capacitives ou les flux résiduels, déterminés par l'opération précédente, pour des charges inductives.
EP98204085A 1998-12-03 1998-12-03 Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande Expired - Lifetime EP1006539B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES98204085T ES2229444T3 (es) 1998-12-03 1998-12-03 Dispositivo de control y vigilancia para la apertura o el cierre de un elemento electrico de accionamiento.
AT98204085T ATE275755T1 (de) 1998-12-03 1998-12-03 Steuer- und überwachungseinrichtung für die öffnung oder die schliessung eines elektrischen betätigungselementes
EP98204085A EP1006539B1 (fr) 1998-12-03 1998-12-03 Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande
DE69826134T DE69826134T2 (de) 1998-12-03 1998-12-03 Steuer- und Überwachungseinrichtung für die Öffnung oder die Schliessung eines elektrischen Betätigungselementes
TW088118960A TW527489B (en) 1998-12-03 1999-11-11 Control and monitoring device for the opening/closing of operating elements
CNB991258878A CN1251263C (zh) 1998-12-03 1999-12-02 用于断开/闭合操作元件的监控设备的操作方法
KR1019990054627A KR20000047874A (ko) 1998-12-03 1999-12-03 전기 작동 요소의 개폐를 위한 제어 및 감시 장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98204085A EP1006539B1 (fr) 1998-12-03 1998-12-03 Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande

Publications (2)

Publication Number Publication Date
EP1006539A1 EP1006539A1 (fr) 2000-06-07
EP1006539B1 true EP1006539B1 (fr) 2004-09-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98204085A Expired - Lifetime EP1006539B1 (fr) 1998-12-03 1998-12-03 Dispositif de contrôle et surveillance pour l'ouverture ou la fermeture d'un élément électrique de commande

Country Status (7)

Country Link
EP (1) EP1006539B1 (fr)
KR (1) KR20000047874A (fr)
CN (1) CN1251263C (fr)
AT (1) ATE275755T1 (fr)
DE (1) DE69826134T2 (fr)
ES (1) ES2229444T3 (fr)
TW (1) TW527489B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024420A1 (de) * 2008-05-16 2009-11-19 Siemens Aktiengesellschaft Verfahren zur Bestimmung eines Schaltzeitpunktes eines elektrischen Schaltgerätes
US8450878B2 (en) * 2009-01-26 2013-05-28 Geneva Cleantech, Inc. Methods and apparatus for power factor correction and reduction of distortion in and noise in a power supply delivery network
DE102009013561A1 (de) * 2009-03-17 2010-10-07 Dürr Systems GmbH Überwachungsverfahren und Überwachungseinrichtung für eine elektrostatische Beschichtungsanlage
CN105206449B (zh) * 2009-11-16 2018-01-02 Abb 技术有限公司 使输电线路或配电线路的电流断路的装置和方法以及限流布置
US9793716B2 (en) 2014-04-24 2017-10-17 Elster Solutions, Llc Power meter disconnect switch operation
US9679728B2 (en) * 2014-08-06 2017-06-13 Whirlpool Corporation Methods, apparatus and articles of manufacture to regulate relay coil switching
WO2016084055A1 (fr) * 2014-11-30 2016-06-02 Abb Technology Ltd. Procédé pour estimer un temps de fonctionnement électrique d'un disjoncteur à l'aide d'une rétroaction de courant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946277A (en) * 1974-08-28 1976-03-23 Lange George M Zero current switching circuitry
GB2069762A (en) * 1980-02-14 1981-08-26 Lyons Claude Ltd Arrangement for controlling the operation of switch contacts
AT384502B (de) * 1985-09-10 1987-11-25 Sprecher & Schuh Ag Einrichtung zum gesteuerten ein- und/oder ausschalten von induktiven und kapazitiven elementen im hochspannungsnetz
US5644463A (en) * 1992-10-20 1997-07-01 University Of Washington Adaptive sequential controller with minimum switching energy
KR0147265B1 (ko) * 1993-03-29 1998-12-01 유채준 심야부하기기용 전자식 타임스위치

Also Published As

Publication number Publication date
DE69826134D1 (de) 2004-10-14
EP1006539A1 (fr) 2000-06-07
DE69826134T2 (de) 2005-09-29
ES2229444T3 (es) 2005-04-16
ATE275755T1 (de) 2004-09-15
KR20000047874A (ko) 2000-07-25
CN1251263C (zh) 2006-04-12
CN1255717A (zh) 2000-06-07
TW527489B (en) 2003-04-11

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