EP3963609A1 - Ensemble commutateur comprenant un système d'entraînement et procédé pour faire fonctionner un ensemble commutateur de manière sûre - Google Patents

Ensemble commutateur comprenant un système d'entraînement et procédé pour faire fonctionner un ensemble commutateur de manière sûre

Info

Publication number
EP3963609A1
EP3963609A1 EP20721209.3A EP20721209A EP3963609A1 EP 3963609 A1 EP3963609 A1 EP 3963609A1 EP 20721209 A EP20721209 A EP 20721209A EP 3963609 A1 EP3963609 A1 EP 3963609A1
Authority
EP
European Patent Office
Prior art keywords
motor
switch
switch arrangement
safety
power unit
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.)
Pending
Application number
EP20721209.3A
Other languages
German (de)
English (en)
Inventor
Benjamin Dittmann
Eduard ZERR
Klaus IXMEIER
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 EP3963609A1 publication Critical patent/EP3963609A1/fr
Pending legal-status Critical Current

Links

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
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • 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
    • 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
    • H01H9/0005—Tap change devices
    • H01H2009/0061—Monitoring tap change switching devices

Definitions

  • the invention relates to a switch arrangement with a switch and a drive system for the switch and a method for safe operation of the switch arrangement.
  • switches for different tasks and with different requirements. To operate the respective switches, they must be driven by a drive system. These switches are, among other things, on-load tap-changers, diverter switches, selector switches, double-turners, reversers, preselectors, circuit-breakers, load switches or disconnectors.
  • On-load tap-changers are used, for example, for uninterrupted switching between different winding taps of electrical equipment, such as a power transformer or a controllable choke.
  • electrical equipment such as a power transformer or a controllable choke.
  • the transmission ratio of the transformer or the inductance of the choke can be changed.
  • Double turners are used to reverse the polarity of windings during operation of the power transformer.
  • the improved concept is based on the idea of designing the drive system as a servo drive system and equipping it with a power unit which initiates or executes a safety measure when a safety-relevant event occurs.
  • Security measures are usually implemented via separate, outside the power section arranged safety modules such as contactors implemented with hard wiring.
  • a switch assembly includes a switch and a servo drive system for the switch.
  • the servo drive system has a motor for driving the switch, a power unit for supplying energy, in particular a controlled or regulated energy supply, of the motor and a control unit for controlling the power unit as a function of at least one setpoint.
  • the control unit is set up to identify the presence of at least one safety-relevant event and, if the safety-relevant event is present, to generate at least one control signal and to transmit it to the power unit.
  • the power unit is set up to initiate or execute at least one safety measure as a function of the control signal.
  • a servo drive system is a drive system that controls the motor electronically, whereby the control can include a position, angle or position control, a speed or rotational speed control, an acceleration control and / or a torque control.
  • the term servo drive system therefore implies that the drive system has a device for detecting one or more of the mentioned control variables and for feeding back a corresponding feedback signal to the control unit and that the control is carried out using the feedback signal.
  • the activation of the power section as a function of the at least one setpoint value corresponds to regulation in this sense.
  • the operational safety of the switch arrangement is increased by initiating a safety measure when a safety-relevant event is present.
  • the motor for driving the switch is coupled to a shaft or some other component of the switch via one or more gears.
  • the switch can be configured as an on-load tap-changer or a diverter switch or a selector or a double turner or a reverser or a preselector or a circuit breaker or a load switch or a disconnector.
  • the power unit is designed as a converter, in particular a servo converter, or as an equivalent electronic, in particular fully electronic, unit for drive machines.
  • the power unit is designed to bring the motor to a standstill, in particular to safely shut it down, by a first of the at least one safety measure.
  • the standstill can also include a movement within a defined tolerance range.
  • the safe stopping of the motor includes a safety function which corresponds to a stop category according to the industrial standard EN 60204-1: 2006, the content of which is hereby incorporated by reference.
  • the safe stopping of the motor includes a safe torque-off, STO, safety function, safe-stop-1, SS1, safety function, safe-stop-2, SS2, safety function, or safe-operation-stop , SOS, safety function.
  • the safety measure includes the monitoring of a movement or a position of the motor, in particular a motor shaft of the motor.
  • the monitoring of the movement of the motor includes a Safely-Limited-Speed, SLS, safety function, a Safe-speed-monitor, SSM, safety function, a Safe-speed-range, SSR, safety function, a Safe-Iimit position, SLP, safety function, a safe position, SP, safety function or a safe direction, SDI, safety function.
  • the first safety measure includes an uncontrolled shutdown of the motor.
  • the power unit is set up to completely interrupt the power supply to the motor as a function of the control signal.
  • the first security measure includes immediately or immediately interrupting the energy supply. The power supply remains interrupted even when the motor is at a standstill, so that it can no longer provide any torque (corresponds to STO).
  • the power unit is set up to brake or shut down the motor in a controlled manner, depending on the control signal.
  • the power supply to the motor is maintained during this time.
  • the power unit is set up to completely interrupt the power supply of the motor, depending on the control signal after the controlled braking or stopping, so that it can no longer provide torque (corresponds to SS1).
  • the power unit is set up to maintain the power supply of the motor depending on the control signal after the controlled braking or stopping and to regulate a position of the motor, in particular the motor shaft, to a target position (corresponds to SS2).
  • the power unit is set up to initiate a further safety measure, in particular comprising an STO or an SS1 safety function, if a tolerance range is violated with respect to the target position.
  • the power part is set up to limit a speed or rotational speed of the motor shaft by a second of the at least one safety measure.
  • the power section is set up to restrict the speed in such a way that the speed is less than or equal to a predetermined maximum speed (corresponds to SLS or SSR).
  • the power unit is set up to restrict the speed in such a way that the speed is greater than or equal to a predetermined minimum speed (corresponds to SSM or SSR).
  • the power unit is set up to initiate a further safety measure, in particular comprising an STO or an SS1 safety function, when the maximum speed is exceeded or the minimum speed is not reached.
  • a further safety measure in particular comprising an STO or an SS1 safety function
  • the at least one safety-relevant event comprises a deviation of a direction of rotation of the motor, the motor shaft or a further shaft of the switch arrangement from a predetermined target direction of rotation (corresponds to SDI).
  • the direction of rotation is detected by an encoder device.
  • the servo drive system has an absolute value transmitter, which is arranged on the servo drive system or the switch, in particular on-load tap changer, diverter switch, selector, double turner, turner, preselector, power switch, load switch or disconnector, in order to determine an absolute position of the motor shaft or to detect the further wave of the switch assembly.
  • the control unit is set up to generate the control signal as a function of a feedback signal from the absolute encoder.
  • the at least one safety-relevant event occurs when the absolute position of the motor shaft or the further shaft falls below a predetermined minimum position or exceeds a predetermined maximum position (corresponds to SLP).
  • a method for the safe operation of a switch arrangement is also specified.
  • a power section of the switch arrangement is controlled as a function of at least one setpoint value.
  • the presence of at least one safety-relevant event is identified and, in the case of the safety-relevant event, at least one control signal is transmitted to the power unit.
  • At least one safety measure is initiated or carried out by the power unit as a function of the control signal.
  • FIG. 1 shows a schematic representation of an exemplary embodiment of a switch arrangement according to the improved concept
  • FIG. 2 shows a schematic representation of a further exemplary embodiment of a switch arrangement according to the improved concept.
  • FIG. 1 shows a schematic representation of an exemplary embodiment of a switch arrangement 1 according to the improved concept with a switch 17 and a servo drive system 2 which is connected to the switch 17 via a drive shaft 16.
  • the servo drive system 2 includes a motor 12 which can drive the drive shaft 16 via a motor shaft 14 and optionally via a gearbox 15.
  • a control device 3 of the servo drive system 2 comprises a power unit 1 1, which contains, for example, a servo converter, for the controlled or regulated energy supply of the motor 12 and a control unit 10 for controlling the power unit 1 1, for example via a bus 18.
  • the servo drive system 2 can have an encoder system 13 which serves as a feedback system or is part of the feedback system and is connected to the power unit 11. Furthermore, the encoder system 13 is coupled directly or indirectly to the drive shaft 16.
  • the encoder system 13 is set up to detect a value for a position, in particular an angular position, for example an absolute angular position, of the drive shaft 16 and to generate a feedback signal based thereon.
  • the encoder system 13 can include an absolute encoder, in particular a multi-turn absolute encoder, which is attached to the drive shaft 16, the motor shaft 14 or another shaft whose position is clearly linked to the absolute position of the drive shaft 16.
  • the position of the drive shaft 16 can be clearly determined from the position of the motor shaft 14, for example via a gear ratio of the transmission 15.
  • the control device 3, in particular the control unit 10 and / or the power unit 11, is set up to control the motor 12 depending on the To control or regulate the feedback signal.
  • the attachment of the absolute value encoder is designed, for example, as a combination of a form-fitting connection with a non-positive or material connection.
  • the control unit 10 can identify the presence of a safety-relevant event, for example a malfunction or an error in the switch 17 or the drive system. If there is a safety-relevant event, the control unit 10 transmits a control signal to the power unit 1 1, which then initiates or executes a safety measure.
  • FIG. 2 shows a schematic illustration of a further exemplary embodiment of a switch arrangement 1 according to the improved concept, which is based on the embodiment according to FIG.
  • the switch arrangement 1 here optionally has a switch cabinet 21 within which the control unit 10, the power unit 11 and an optional human-machine interface 19 are arranged.
  • the man-machine interface 19 is connected to the control unit 10 and can, for example, serve for control, maintenance or configuration purposes.
  • the motor 12, the motor shaft 14, the encoder system 13 and / or the gear 15 can be arranged inside or outside the control cabinet 21.
  • the switch arrangement 1, in particular the control unit 10, is coupled to a safety device 20 which, for example, includes a power switch or circuit breaker in order to disconnect the switch arrangement or an electrical device to which the switch arrangement is assigned from an energy network, for example in the case of an error or a malfunction of the switch arrangement.
  • a safety device 20 which, for example, includes a power switch or circuit breaker in order to disconnect the switch arrangement or an electrical device to which the switch arrangement is assigned from an energy network, for example in the case of an error or a malfunction of the switch arrangement.
  • a switch arrangement increases the operational reliability of the servo drive system, the switch and the operating means. This is achieved in particular by introducing the safety measure through the power unit.

Landscapes

  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un ensemble commutateur (1) comprenant un commutateur (17) et un système de servocommande (2) pour le commutateur (17). Ce système de servocommande (2) comprend un moteur (14) pour commander le régleur en charge (17), un élément de puissance (11) pour alimenter le moteur (12) en énergie et une unité de commande (10) pour commander l'élément de puissance (11) en fonction d'au moins une valeur théorique. L'unité de commande (10) est conçue pour identifier la présence d'au moins un résultat pertinent en termes de sécurité et, en présence de ce résultat pertinent en termes de sécurité, à générer au moins un signal de commande et à le transmettre à l'élément de puissance (11). Cet élément de puissance (11) est conçu pour induire ou exécuter au moins une mesure de sécurité en fonction du signal de commande.
EP20721209.3A 2019-05-15 2020-04-23 Ensemble commutateur comprenant un système d'entraînement et procédé pour faire fonctionner un ensemble commutateur de manière sûre Pending EP3963609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112712.2A DE102019112712A1 (de) 2019-05-15 2019-05-15 Schalteranordnung mit antriebssystem und verfahren zum sicheren betrieb einer schalteranordnung
PCT/EP2020/061278 WO2020229121A1 (fr) 2019-05-15 2020-04-23 Ensemble commutateur comprenant un système d'entraînement et procédé pour faire fonctionner un ensemble commutateur de manière sûre

Publications (1)

Publication Number Publication Date
EP3963609A1 true EP3963609A1 (fr) 2022-03-09

Family

ID=70456776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20721209.3A Pending EP3963609A1 (fr) 2019-05-15 2020-04-23 Ensemble commutateur comprenant un système d'entraînement et procédé pour faire fonctionner un ensemble commutateur de manière sûre

Country Status (5)

Country Link
US (1) US11996250B2 (fr)
EP (1) EP3963609A1 (fr)
CN (1) CN113811967A (fr)
DE (1) DE102019112712A1 (fr)
WO (1) WO2020229121A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021101237B3 (de) 2021-01-21 2022-06-09 Maschinenfabrik Reinhausen Gmbh Schalteranordnung mit laststufenschalter und antriebssystem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB493648A (en) * 1937-05-31 1938-10-12 Clifford Ryder Improvements relating to electrical switchgear
BR112013025007B1 (pt) * 2011-03-27 2021-05-25 Abb Schweiz Ag comutador de derivação com um sistema de monitoramento aprimorado
CN103563032B (zh) * 2011-03-27 2017-05-10 Abb技术有限公司 具有改进驱动系统的抽头变换器
CN106783289B (zh) * 2016-12-30 2018-11-02 平高集团有限公司 一种开关装置
CN106960736B (zh) * 2017-03-24 2019-06-28 平高集团有限公司 一种高压开关

Also Published As

Publication number Publication date
CN113811967A (zh) 2021-12-17
DE102019112712A1 (de) 2020-11-19
US11996250B2 (en) 2024-05-28
US20220216013A1 (en) 2022-07-07
WO2020229121A1 (fr) 2020-11-19

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