EP2603922B1 - Verfahren und vorrichtung zur steuerung der bewegung eines beweglichen teils eines trennschalters - Google Patents

Verfahren und vorrichtung zur steuerung der bewegung eines beweglichen teils eines trennschalters Download PDF

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Publication number
EP2603922B1
EP2603922B1 EP20110754707 EP11754707A EP2603922B1 EP 2603922 B1 EP2603922 B1 EP 2603922B1 EP 20110754707 EP20110754707 EP 20110754707 EP 11754707 A EP11754707 A EP 11754707A EP 2603922 B1 EP2603922 B1 EP 2603922B1
Authority
EP
European Patent Office
Prior art keywords
angular position
instantaneous
power
motor
measured
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
EP20110754707
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English (en)
French (fr)
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EP2603922A1 (de
Inventor
Franck Guillon
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.)
Dauphinoise de Constructions Electro Mecaniques SAS
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Dauphinoise de Constructions Electro Mecaniques SAS
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Publication of EP2603922A1 publication Critical patent/EP2603922A1/de
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Publication of EP2603922B1 publication Critical patent/EP2603922B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H01H2003/266—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor having control circuits for motor operating switches, e.g. controlling the opening or closing speed of the contacts

Definitions

  • the invention relates to the field of high and medium voltage disconnector control devices, and more particularly relates to a method and a device for controlling the opening and closing maneuver of these disconnectors.
  • a disconnector is an electrical apparatus including one or more movable members which, placed in the open position, can electrically isolate a line section of an electrical network, for example for safe human intervention on this section of isolated line.
  • the disconnector is coupled to a control device adapted to actuate the movable members according to the received operating commands. More specifically, the direction of movement of a movable member is determined by the configuration of a power supply circuit of a motor driven by a control unit. Examples of control devices are detailed in the documents FR 2,931,995 and FR 2 904 469 of the Applicant.
  • the power supply of the motor for a sufficient duration makes it possible to ensure the displacement of the movable members to cause either the opening or the closing of the disconnector.
  • the disconnector since the disconnector has no breaking capacity, the electrical equipment downstream of the electrical network must be stopped before the opening operation of the disconnector to prevent opening of the disconnector, the appearance of an electric arc. due to opening in load which may cause damage. Similarly, for obvious safety reasons, it is absolutely imperative that the disconnector does not close unexpectedly.
  • the present invention aims to provide a low cost solution and easy to implement to increase the safety of people to intervene on an isolated line section.
  • the invention proposes in particular a solution for monitoring and detecting a connection fault, such as a connection break, between the electrical control device and the disconnector.
  • the solution of the invention consists in particular in monitoring the evolution of the operating torque of the movable member, or the force provided by the motor to operate the movable member during the opening or closing operation of the disconnector .
  • the invention thus relates to a method of controlling a maneuver of at least one movable member of a disconnector, the member being set in motion by a transmission mechanism driven by an electric motor powered by a circuit of power supply controlled by a control unit according to an order of maneuver.
  • the monitoring of the evolution of the maneuvering torque is notably achieved by the acquisition, during the maneuver, of values such as the instantaneous angular position of one of the elements constituting the transmission system and the instantaneous power. corresponding provided to the engine, the measured instantaneous angular position being in particular representative of the instantaneous position of the movable member of the disconnector.
  • the existence of a fault between the control device and the movable member of the disconnector during the maneuver can result in the location of operating points. in an area below or above the reference curve, each of the operating points being defined by the instantaneous measured angular position and the corresponding measured instantaneous power.
  • the operating point may be a defect related to sub-torque operation, or may result from a break in electrical or mechanical connection between the control device and the disconnector.
  • the operating point may be a fault related to over-torque operation that may result from blocking the transmission.
  • mechanical torque motor to the movable member of the disconnector.
  • the zone situated above the reference curve and corresponding to an over-torque operation is such that for a given value of the angular position, the value of the corresponding instantaneous power is 50% greater than the value the corresponding reference power given by the reference curve.
  • the area below the reference curve and corresponding to a sub-torque operation is such that for a given value of the angular position, the value of the corresponding instantaneous power is 15% lower than the value. the corresponding reference power given by the reference curve.
  • the area below the reference curve that may correspond to a connection break between the control device and the disconnector is such that for a given value of the angular position, the value of the corresponding instantaneous power is less than 20% to the value of the corresponding power given by the reference curve.
  • the measurement of the instantaneous power comprises the measurement of the motor current and the measurement of the motor voltage, or one of these two values, when the other is known, for example because it is constant.
  • the method further comprises generating an over-torque operation indication signal when the measured instantaneous power is greater than the corresponding reference power for said measured instantaneous angular position.
  • the control method may further include generating a sub-torque operation indication signal when the measured instantaneous power is less than the corresponding reference power for said measured instantaneous angular position.
  • the measurement of the angular position may comprise the measurement of an instantaneous resistance value representative of the angular position of the element of the transmission mechanism with respect to a reference position corresponding to the opening or closing of the disconnector .
  • the invention also relates to a device for controlling a maneuver of at least one movable member of a disconnector for opening or closing the disconnector, this member being set in motion by a transmission mechanism driven by a electric motor powered by a power supply circuit controlled by a control unit according to an operating order.
  • the module for measuring the instantaneous power may comprise a unit for measuring the motor current and a unit for measuring the motor voltage.
  • the module for measuring the instantaneous angular position comprises an angular position sensor intended to be coupled to a rotary shaft constituting one of the elements of the transmission system, and capable of generating an electrical signal representative of the instantaneous angular position of the rotating shaft.
  • an angular position sensor intended to be coupled to a rotary shaft constituting one of the elements of the transmission system, and capable of generating an electrical signal representative of the instantaneous angular position of the rotating shaft.
  • various types of sensors can be used, and in particular rotary potentiometers, but also Hall effect sensors, magneto-resistive sensors, or optoelectronic sensors.
  • the subject of the invention is also a device for controlling the operation of at least one movable member of a disconnector intended to open or close said disconnector, said control device comprising at least one electric motor powered by a circuit power supply controlled by a control unit according to an operating order, said motor being adapted to put the body in motion via a transmission system.
  • the controller may further include the control device described above.
  • a control device 1 is configured to operate a movable member of a disconnector 2, in order to open or close it.
  • the control device 1 comprises a transmission mechanism formed in particular of a rotary shaft 3 coupled to the movable member of the disconnector 2 and driven by an electric motor 5 via a reduction stage 4.
  • a control unit 7 drives a control circuit. supply 6 of the engine 5 according to the received operating order so as to rotate the engine 5 in one direction or another.
  • the shape of the evolution of the operating torque of the movable member remains substantially identical to each use, and this over several years. It is therefore possible to draw a reference curve or to establish a table of values representative of the evolution of the operating torque of the member in a flawless operation, and to compare the evolution of this maneuvering torque during of the maneuver, to detect the existence of a possible malfunction or electrical connection between the control device and the disconnector.
  • the reference curve or the table of values can for example be determined at the beginning of the installation of the disconnector and control device system.
  • the module for measuring the angular position may be a rotary potentiometer 8 coupled to the shaft 3 so as to generate an instantaneous ohmic value R representative of the instantaneous angular position ⁇ of the shaft relative to a reference position.
  • the measuring module can be integrated in the control unit 7, which thus ensures both the motor control and the torque monitoring.
  • the invention also covers variants in which both functions are performed by separate subsets.
  • the control unit 7 receives the instantaneous resistance value R generated by the rotary potentiometer 8 via the electrical connections 9, and determines, from this resistance value R, the instantaneous angular position ⁇ of the shaft 3.
  • the calculation unit can also be integrated into the control unit 7.
  • the control unit 7 receives the value of the measured motor current I via an electrical connection 10, as well as the value of the motor voltage U measured via another electrical connection 11.
  • the control unit 7 determines, starting from these values of current I and voltage U measured, the instantaneous power P supplied to the motor 5 by the supply circuit 6 to position the movable member in the angular position ⁇ instantaneous.
  • control unit 7 determines the instantaneous power P supplied to the motor 5 (and therefore the effort provided to manipulate the disconnector 2) as well as the instantaneous angular position ⁇ representative of the position of the movable member during the operation, and compares this operating point thus determined with the reference curve C ref , this reference curve C ref being able to stored in the control unit 7.
  • first zone Z1 ( figure 2 ) located above the reference curve C ref
  • This first zone Z1 may be such that for a given value of the angular position ⁇ , the value of the corresponding instantaneous power P is 50% greater than the value of the corresponding reference power given by the reference curve C ref for the same value of the angular position ⁇ .
  • the operating point when the operating point is located in a second zone Z2 ( figure 2 ) located below the reference curve C ref , it may be a fault related to a sub-torque operation, and therefore it is possible to provide an adjustment of the motor power.
  • the second zone Z2 is such that for a given value of the angular position ⁇ , the value of the corresponding instantaneous power P is 15% lower than the value of the corresponding power P given by the reference curve C ref for the same value of the angular position ⁇ .
  • the operating point when it is located in a third zone Z3 ( figure 2 ) located below the reference curve C ref , it may be a fault linked to a connection break, this third zone Z3 being such that for a given value of the angular position ⁇ , the value of the instantaneous power P instant is negligible compared to the power required to operate the disconnector, for example less than 20% to the value of the corresponding power given by the reference curve for the same value of the angular position.
  • the over-torque zone Z1 is defined in particular by the area situated above the high curve C h
  • the sub-torque zone Z2 is defined by the area below the low curve C b .
  • the area between the two high curves C h and low C b defines an acceptable operating area. Thus, any operating point outside this acceptable operating area preferably causes the generation of a fault indication signal.
  • the high and low curves form an envelope of the reference curve.
  • the low curve C b can be obtained by transforming the reference curve C ref , keeping the low curve at a distance and under the reference curve.
  • this low curve C b can be obtained by drawing the lower envelope given by circles of a first radius and centered on the points of the reference curve.
  • the high curve C b can be obtained by transforming the reference curve C ref , keeping the high curve at a distance and above the reference curve.
  • this high curve C h can be obtained by plotting the upper envelope given by circles of a second radius and centered on the points of the reference curve. The second radius is preferably greater than the first radius.
  • the high curves C h and low C b may also be obtained by applying, at the points of the reference curve C ref , a gain so that the high and low curves are offset in the power axis. relative to the reference curve, and a positive or negative offset depending on the direction of variation of the curve C ref , so that the high and low curves are offset in the axis of the angular positions with respect to the curve reference.
  • the reference curve C ref exhibits stable zones corresponding to a stable evolution of the torque and transient zones for which the torque increases or falls sharply, it is possible to apply corrections to these transient zones so as to clearly dissociate the high and low curves of the reference curve at these transient zones.
  • the control of the operating torque of the disconnector in real time makes it possible to detect operation in sub-torque or over-torque, but also a connection break between the control device and the disconnector.
  • the invention also has the advantage that the angular information redundant information of the sensors (contacts) limit switches commonly used in disconnecting systems, and therefore to improve safety.
  • the measured curve P ( ⁇ ) and its interpretation by the calculation unit also makes it possible in many cases to provide information on the nature of a possible defect or to anticipate a defect and to plan preventive maintenance interventions. .

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (9)

  1. Überprüfungsverfahren für eine Betätigung mindestens eines beweglichen Teils eines Trennschalters (2), wobei das Teil durch einen Transmissionsmechanismus in Bewegung versetzt wird, der von einem Elektromotor (5) angetrieben wird, der über einen Versorgungskreis (6) versorgt wird, der von einer Steuereinheit (7) in Abhängigkeit von einem Betätigungsbefehl angesteuert wird,
    dadurch gekennzeichnet, dass es mindestens umfasst:
    - Messen der aktuellen Winkelstellung (θ) eines der den Transmissionsmechanismus bildenden Elemente in Bezug auf eine Referenzwinkelstellung;
    - Messen der aktuellen elektrischen Leistung (P);
    - Vergleichen, für jede Winkelstellung, der gemessenen aktuellen Leistung (P) in Bezug auf eine elektrische Referenzleistung (Pref(θ)), die von der gemessenen aktuellen Winkelstellung (θ) abhängt; und
    - Erzeugen eines Fehlerangabesignals, wenn die gemessene aktuelle Leistung (P) von der Referenzleistung (Pref(θ)) um mindestens einen vorbestimmten Wert abweicht.
  2. Überprüfungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Messen der aktuellen Leistung (P) das Messen des Motorstroms (I) und das Messen der Spannung (U) des Motors umfasst.
  3. Überprüfungsverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass es darüber hinaus das Erzeugen eines Überkopplungsbetriebsangabesignals umfasst, wenn die gemessene aktuelle Leistung (P) höher ist als die entsprechende Referenzleistung für die gemessene aktuelle Winkelstellung (θ).
  4. Überprüfungsverfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es darüber hinaus das Erzeugen eines Unterkopplungsbetriebsangabesignals umfasst, wenn die gemessene aktuelle Leistung (P) niedriger ist als die entsprechende Referenzleistung für die gemessene aktuelle Winkelstellung (θ).
  5. Überprüfungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Messen der Winkelstellung das Messen eines aktuellen ohmschen Werts (R), der für die Winkelstellung (θ) des Elements des Transmissionsmechanismus repräsentativ ist, in Bezug auf eine Referenzstellung umfasst, die dem Öffnen oder dem Schließen des Trennschalters (2) entspricht.
  6. Überprüfungsvorrichtung für eine Betätigung mindestens eines beweglichen Teils eines Trennschalters (2) zum Öffnen oder Schließen des Trennschalters (2), wobei dieses Teil durch einen Transmissionsmechanismus in Bewegung versetzt wird, der von einem Elektromotor (5) angetrieben wird, der über einen Versorgungskreis (6) versorgt wird, der von einer Steuereinheit (7) in Abhängigkeit von einem Betätigungsbefehl angesteuert wird,
    dadurch gekennzeichnet, dass sie mindestens umfasst:
    - ein Modul zum Messen der aktuellen Winkelstellung (θ) eines der den Transmissionsmechanismus bildenden Elemente in Bezug auf eine Referenzwinkelstellung;
    - ein Modul zum Messen der aktuellen elektrischen Leistung (P), die vom Motor (5) für verschiedene aktuelle Winkelstellungen (θ) des Elements bereitgestellt wird; und
    - eine Recheneinheit, die in der Lage ist, für jede aktuelle Winkelstellung, die gemessene aktuelle Leistung (P) in Bezug auf eine elektrische Referenzleistung (Pref(θ)), die von der gemessenen aktuellen Winkelstellung (θ) abhängt, zu vergleichen und ein Fehlerangabesignal zu erzeugen, wenn die gemessene aktuelle Leistung (P) von der Referenzleistung (Pref(θ)) um mindestens einen vorbestimmten Wert abweicht.
  7. Überprüfungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Modul zum Messen der aktuellen Leistung (P) eine Messeinheit für den Motorstrom (I) und eine Messeinheit für die Spannung (U) des Motors umfasst.
  8. Überprüfungsvorrichtung nach einem der Ansprüche 6 bis 7, dadurch gekennzeichnet, dass das Modul zum Messen der aktuellen Winkelstellung (θ) ein Drehpotentiometer (8) umfasst, das dazu bestimmt ist, an eine Drehwelle (3) angeschlossen zu werden, die eines der Elemente des Transmissionssystems bildet, und in der Lage ist, einen aktuellen ohmschen Wert (R) zu erzeugen, der für die aktuelle Winkelstellung (θ) repräsentativ ist.
  9. Steuervorrichtung (1) zur Betätigung mindestens eines beweglichen Teils eines Trennschalters (2), die zum Öffnen oder Schließen des Trennschalters (2) bestimmt ist, wobei die Steuervorrichtung (1) mindestens einen Elektromotor (5) umfasst, der über einen Versorgungskreis (6) versorgt wird, der von einer Steuereinheit (7) in Abhängigkeit von einem Betätigungsbefehl angesteuert wird, wobei der Motor (5) in der Lage ist, das Teil mittels einer Drehwelle (3) in Bewegung zu versetzen, dadurch gekennzeichnet, dass die Steuervorrichtung (1) darüber hinaus die Überprüfungsvorrichtung nach einem der Ansprüche 6 bis 8 umfasst.
EP20110754707 2010-08-11 2011-07-20 Verfahren und vorrichtung zur steuerung der bewegung eines beweglichen teils eines trennschalters Not-in-force EP2603922B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1056554A FR2963858B1 (fr) 2010-08-11 2010-08-11 Dispositif et procede de controle d'une manoeuvre d'un organe mobile d'un sectionneur
PCT/FR2011/051745 WO2012020187A1 (fr) 2010-08-11 2011-07-20 Procede et dispositif de controle d'une manoeuvre d'un organe mobile d'un sectionneur

Publications (2)

Publication Number Publication Date
EP2603922A1 EP2603922A1 (de) 2013-06-19
EP2603922B1 true EP2603922B1 (de) 2015-05-06

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EP20110754707 Not-in-force EP2603922B1 (de) 2010-08-11 2011-07-20 Verfahren und vorrichtung zur steuerung der bewegung eines beweglichen teils eines trennschalters

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EP (1) EP2603922B1 (de)
CN (1) CN103081048B (de)
ES (1) ES2536963T3 (de)
FR (1) FR2963858B1 (de)
WO (1) WO2012020187A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2809731C2 (ru) * 2019-05-29 2023-12-15 Абб Швайц Аг Усовершенствованные диагностические решения для переключающих устройств среднего напряжения

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105319500B (zh) * 2015-09-24 2018-12-28 国家电网公司 一种基于拉线式传感器的隔离开关在线监测系统及其方法
ES2957839T3 (es) * 2019-05-29 2024-01-26 Abb Schweiz Ag Soluciones de diagnóstico mejoradas para aparatos de conmutación de media tensión

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617260C1 (de) * 1996-04-19 1997-06-19 Mueller Jean Ohg Elektrotech Schaltwerk für einen elektrischen Lastschalter
FR2904469B1 (fr) * 2006-07-28 2008-10-17 Dauphinoise Const Elect Mec Dispositif de commande electronique d'un sectionneur
CN100555490C (zh) * 2006-09-06 2009-10-28 士林电机厂股份有限公司 使用于交流电路的电力开关的投入/切离方法及装置
JP5081514B2 (ja) * 2007-07-04 2012-11-28 株式会社日立製作所 省エネルギー運転支援方法における省消費電力効果の算出方法、省エネルギー運転支援システム、および省消費電力効果の算出プログラム
FR2931995B1 (fr) 2008-06-03 2010-05-28 Dauphinoise Const Elect Mec Dispositif de commande d'un moteur de sectionneur electrique
EP2197011B1 (de) * 2008-12-12 2013-08-07 ABB Research Ltd. Antriebssystem zum Betreiben einer elektrischen Vorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2809731C2 (ru) * 2019-05-29 2023-12-15 Абб Швайц Аг Усовершенствованные диагностические решения для переключающих устройств среднего напряжения

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Publication number Publication date
WO2012020187A1 (fr) 2012-02-16
ES2536963T3 (es) 2015-06-01
FR2963858A1 (fr) 2012-02-17
CN103081048A (zh) 2013-05-01
CN103081048B (zh) 2015-06-10
EP2603922A1 (de) 2013-06-19
FR2963858B1 (fr) 2012-08-17

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