EP3963618A1 - Procédé pour effectuer une commutation d'au moins un moyen de commutation d'un moyen d'exploitation et système d'entraînement pour au moins un moyen de commutation d'un moyen d'exploitation - Google Patents

Procédé pour effectuer une commutation d'au moins un moyen de commutation d'un moyen d'exploitation et système d'entraînement pour au moins un moyen de commutation d'un moyen d'exploitation

Info

Publication number
EP3963618A1
EP3963618A1 EP20721214.3A EP20721214A EP3963618A1 EP 3963618 A1 EP3963618 A1 EP 3963618A1 EP 20721214 A EP20721214 A EP 20721214A EP 3963618 A1 EP3963618 A1 EP 3963618A1
Authority
EP
European Patent Office
Prior art keywords
switching means
switching
load tap
motor
changer
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
EP20721214.3A
Other languages
German (de)
English (en)
Inventor
Eduard ZERR
Klaus IXMEIER
Benjamin Dittmann
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 EP3963618A1 publication Critical patent/EP3963618A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01H9/0011—Voltage selector switches
    • 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 method for carrying out a switchover of at least one switching means of an operating means.
  • the invention also relates to a drive system for at least one switching means of a Be operating means.
  • German patent application DE 10 2014 1 10 732 A1 discloses an on-load tap changer with a motor drive for switching between winding taps of a step transformer.
  • a drive shaft is driven by means of the motor drive.
  • the rotary motion of the motor drive is provided via two switchable coupling devices of a first drive shaft assigned to the selector and a second drive shaft assigned to the diverter switch.
  • the selector and the diverter switch can be designed to be switchable with respect to one another independently of the initial rotary movement of the motor drive.
  • Voltage regulation in power transmission and distribution networks requires different types of switches to be built into the transformers. Different factors play a role in the operation of the transformer and thus also the switch. For example, in transformers with two built-in load level switches, the operation of both must be coordinated. This is done by means of a rigid rod between the two on-load tap-changers, which is driven by a common motor. Incorrect coupling of the boom can cause malfunctions during operation, which in extreme cases can have serious technical and economic consequences.
  • Another object is achieved by a method for carrying out a switchover by means of an operating means, which method comprises the features of claim 1. Another object is to provide an improved concept for a drive system of a Wegmit means by which the security of the switching means and the operating means it is increased.
  • Another object of the invention is to provide a drive system for at least one switching means of an operating means, by means of which the safety and reliability of the switching means and the operating means are increased during the switching process.
  • the method according to the invention for carrying out a switchover of at least one switching means which is assigned to an operating means is characterized in that a control unit or control device receives a switching signal. At least one of the switching means for switching is selected by means of the control unit. This is done on the basis of the switching signal. At least one parameter is queried by the control unit from a feedback system.
  • a feedback system can be assigned to a motor of each switching means.
  • the switchover is carried out with the selected switching means by means of a motor which is connected to the respective switching means via a drive shaft. The switchover only takes place when the corresponding locking condition for the selected switching means is met.
  • the switching signal can, for example, be generated by a voltage regulator, manual input or in any other arbitrary manner.
  • the voltage regulator monitors voltage fluctuations in the network. Depending on requirements, a signal is sent to the control unit so that a voltage is adjusted accordingly by actuating the switching means.
  • the method according to the invention is based on the idea that before a switching means in an operating means, e.g. Transformer, is actuated or switched and a switchover is carried out, a locking condition is checked in a control unit or control device. A parameter is requested for this check. If the interlocking condition is met by the requested parameter, the switchover takes place.
  • an operating means e.g. Transformer
  • an on-load tap-changer is assigned to the transformer as a first switching means and a double-reverser as a second switching means.
  • a dem Transformer assigned power section controlled by the control unit to operate the on-load tap-changer or the on-load tap-changer and the double-turner.
  • a first motor connected to the on-load tap-changer via a drive shaft and / or a second motor connected to the double turner via a drive shaft are operated.
  • three on-load tap-changers are assigned to the transformer as a first switching means.
  • a power section assigned to the transformer is activated by the control unit to operate one of the three on-load tap-changers.
  • the power unit actuates a first motor of each on-load tap-changer via a drive shaft connected to the on-load tap-changer as a function of the implementation of the switchover.
  • the transformer can be assigned an on-load tap-changer as a first switching means and two double reversers as a second switching means.
  • a power unit assigned to the transformer is controlled by the control unit for actuating the on-load tap-changer and at least one of the two reversers.
  • the power unit actuates, depending on the implementation of the switching device, a first motor connected to the on-load tap-changer via a drive shaft and a second motor connected to each of the two double-turner via a drive shaft.
  • the parameters determined by the feedback systems are available for switching the at least one on-load tap-changer and / or for switching the at least one double-turner for a position of the respective on-load tap-changer and the respective double-turner. Furthermore, the parameters of the on-load tap-changer and double-turner required for the switchover determined by the feedback systems can indicate whether the on-load tap-changer and / or the double-turner are currently being operated.
  • the queried parameters of the at least one on-load tap-changer and of the at least one double turner are evaluated and combined in the control unit. Based on the result of the evaluation, the at least one on-load tap-changer and / or the at least one double-turn which can be controlled as required.
  • three transformers are provided. A power unit is assigned to each of the three transformers. The power units are controlled by the central control unit, whereby the on-load tap-changer of each of the three transformers to a first switching device group, the first double turn of each of the three transformers to a second switching device group and the second double turning of each of the three transformers to a third switching device group be summarized.
  • the existing on-load tap-changers and double reversers are checked by a control unit.
  • the check shows in which position the on-load tap-changer or the double turner is.
  • the parameter for the locking condition to be checked is therefore the position of the on-load tap-changer and / or the double-turner, which is determined by means of the feedback system.
  • the feedback system can be an encoder, a multiturn encoder, a singleturn encoder, a resolver, a switch, a microswitch, a sensor, a contact, etc. It goes without saying for a person skilled in the art that this list of the possible configurations of the feedback system is not exhaustive.
  • the feedback system is used to determine the parameter that is necessary for checking a locking condition.
  • the parameter depends on the feedback system. Depending on the configuration, the parameter is a value, a range of values, a simple signal, etc.
  • the feedback system which is queried by a control unit, can also be assigned to a temperature controller, circuit breaker or the like, or designed as such, depending on requirements. Any parameter that is queried by a feedback system can thus also be used for an interlocking condition. For example, a certain temperature can be used as a parameter of a thermometer to meet a locking condition. Furthermore, a parameter can be used by a status of a circuit breaker.
  • the feedback system is a transmitter that outputs the parameter that the circuit breaker is open or closed or is currently being opened or closed. According to the locking condition, the status of the circuit breaker is used to check whether the switching means to be actuated can / may be actuated.
  • the drive system according to the invention for at least one on-load tap-changer and / or at least one double-reverser of a transformer is characterized by a first motor which is connected to the at least one on-load tap-changer via a drive shaft.
  • a second motor is connected to the at least one double turner via a drive shaft.
  • One feedback system is assigned to each of the first motors and each of the second motors in order to determine at least one parameter of the at least one on-load tap-changer and / or of the at least one double-turner.
  • a control unit that is communicatively connected to a power unit can operate the on-load tap-changer with the first motor and the double turner with the second motor.
  • the on-load tap-changer or the double-reverser is only actuated if the locking conditions determined by the at least one determined parameter are met.
  • the parameter of the second feedback system on the second switching means can also be determined by another feedback system, for example a protective contact or thermometer.
  • the transformer is assigned a single on-load tap-changer and a single double turner.
  • three on-load tap-changers are assigned to the transformer.
  • Certain switching positions or positions of the switching means can be stored in the memory, which, for example, are assigned to a value for the position of the drive shaft.
  • a single on-load tap-changer and two double-turners are assigned to the transformer.
  • a power unit is assigned to each of the transformers and the power units are communicatively connected to a single central control unit.
  • the on-load tap-changers of the multiple transformers are combined to form a first Heidelbergmit telelle.
  • the first double turners of the multiple transformers are combined into a second group of switching devices.
  • the second double turners of the multiple transformers are combined to form a third group of switching devices.
  • a separate power unit can be assigned to each motor.
  • One power unit can also drive all motors.
  • the control unit and / or the power unit comprise a memory. Certain switching positions or positions of the switching means can be stored in the memory for example, are assigned a value for the position of the drive shaft.
  • Figure 1 shows a drive system for at least one switching means in a transformer, according to an embodiment of the invention
  • Figure 2 shows another embodiment of a drive system for at least one
  • Figure 3 shows yet another embodiment of a drive system for at least one
  • FIG. 4 shows an embodiment of a drive system for several transformers
  • FIG. 5 shows a process sequence for carrying out a switchover of at least one
  • Switching means in a transformer by means of a drive system according to the invention are provided.
  • FIG. 1 shows a transformer 20 which is used for power transmission.
  • the water has a first switching means 17, which is designed as an on-load tap changer, and a second switching means 18, which is designed as a double turner on.
  • the load step switch 17 is actuated by means of a first motor 12.
  • the first motor 12 has a drive shaft 16 which is connected to the on-load tap changer 17.
  • the first motor 12 is assigned a first feedback system 6, with which the position or step position of the on-load tap-changer 17 can be determined.
  • the double turner 18 is operated by a second motor 13. This second motor 13 is also connected via a drive shaft 16 connected to the double turner 18.
  • a separate feedback system 7 of the second motor 13 makes it possible to determine the position or step position of the double turner 18.
  • a control unit 10 is connected to the first and second motors 12, 13 and thus also to the feedback systems 6, 7 of the on-load tap-changer 17 and the double turner 18.
  • the control unit 10 receives signals for actuating the on-load tap-changer 17 and the double turner 18. Furthermore, different values of the respective feedback systems 6, 7 are evaluated and combined in the control unit 10.
  • the control unit 10, the motors 12, 13 and the feedback systems 6, 7 form the drive system 3 for the on-load tap-changer 17 and the double turner 18 of the transformer 20.
  • the control device 2 comprises the control unit 10, which receives switching signals during operation. If, for example, the voltage in the network falls, it must be adapted, for example, by actuating the on-load tap-changer 17 of the transformer 20. By using a double inverter 18 with appropriate interconnection of the windings (not shown) of the transformer 20, the control range or function range of a transformer 20 is expanded. After receiving the signal that the voltage must be changed, it is first determined whether the on-load tap-changer 17 or the double turner 18 or whether both must be actuated one after the other. After it has been determined that the on-load tap-changer 17 must be actuated, the locking conditions that have been defined between the double turner 18 and the on-load tap-changer 17 are checked.
  • an on-load tap-changer 17 may not be actuated when the double turner 18 is being actuated.
  • the check is carried out in such a way that the second feedback system 7 of the second motor 13 of the double turner 18 reports the current status to the control unit 10 or transmits parameters.
  • the position of the double turner 18 is determined and transmitted via the second feedback system 7.
  • the second feedback system 7 reports whether the double turner 18 is currently being operated. If the determined parameters meet the interlocking conditions, the on-load tap-changer 17 is actuated. If the interlocking conditions have not been met, the on-load tap-changer 17 is not actuated. Alternatively, the switching or actuation of the on-load tap-changer 17 can be waited until the Verrie gelungs discipline are met, so the double turner 18 is in a certain posi tion or no longer moves.
  • the control device 2 comprises the control unit 10 with a memory 5 and at least one power section 11 with a memory 5.
  • the memory 5 for example, an assignment of switching positions of the on-load tap-changer 17 and the double-turner 18 can be stored. the.
  • the values for the positions of the individual drive shafts 16 can also be stored in memory 5.
  • FIG. 2 shows the drive system 3 described above for three identical on-load tap-changers 17, which are assigned to one transformer 20.
  • each on-load tap changer 17 has its own first motor 12 and its own first feedback system 6. After receiving a switching signal, it is first determined which of the three on-load tap-changers 17 is to be actuated. It is also conceivable to select a sequence for the actuation of the load tap changer 17. The interlocking conditions are also checked here. This is done on the basis of the transmitted parameters of the respective first feedback system 6.
  • a check is made to determine the position of the on-load tap-changer 17 that is not to be actuated or whether this or these is or are being actuated. If the determined parameters meet the locking conditions, the selected on-load tap-changer 17 can be operated.
  • FIG. 3 shows a further embodiment of the drive system 3 described.
  • an on-load tap-changer 17 and two double-turners 18 are provided as second switching means 18.
  • the on-load tap-changer 17 and the two double turner 18 are each actuated by their own first motor 12 and their own second motor 13, respectively.
  • a first feedback system 6 or a second feedback system 7 is assigned to each of the motors 12 and 13.
  • different locking conditions can be checked in the control unit 10 by querying the parameters of the feedback systems 6 and 7.
  • an actuation of the second Doppelwen is only possible when the first double turner 18 is in a safe position and the on-load tap changer 17 is in the middle position (not shown).
  • a certain first position or second position of the double turner 18 is defined as a safe position.
  • FIG. 4 shows a further embodiment of the drive system 3 described.
  • Three transformers 20 are shown here.
  • the embodiment described here is a phase shifter with longitudinal and transverse regulation.
  • Each of the transformers 20 has an on-load tap-changer 17 (first switching means) and two double switches 18 (second switching means).
  • the equipping of the transformer 20 corresponds to the equipping of the embodiment from FIG. 3.
  • switching element groups 30, 40, 50 can be formed.
  • a first switching group 30 consists of the on-load tap-changers 17 in the respective transformers 20.
  • a second switching group 40 are the first double-turners 18 third switching means group 50 represent the respective second double turners 18.
  • the particular switching means group 30, 40, 50 meets the locking conditions.
  • it is checked, for example, in which position each individual one of the first double turner 18 is and whether one of these is moving.
  • the interlocking conditions are checked using the parameters of the respective feedback systems 6 and 7.
  • One of the interlocking conditions is that one of the switching element groups 40, 50 can only be actuated when the on-load tap-changer 17 of the first switching element group 30 is in a so-called middle position (not shown).
  • the power unit 11, which is assigned to each drive system 3 of each transformer 20, is connected by a bus 19 to a central and single control unit 10.
  • the central control unit 10 With means of the central control unit 10, the actuation of the respective on-load tap-changer 17 or double turner 18 for each of the three transformers 20 is coordinated and controlled. As shown in FIGS. 1 to 3, the power unit 11 accesses the motors 12 or 13 assigned to the on-load tap-changer 17 or double turner 18 or actuates them.
  • FIG. 5 shows a process sequence according to the invention.
  • the Steuervorrich device 2 receives a switching signal for the actuation of an on-load tap-changer 17 and / or a double reverser 18.
  • This switching signal can be generated, for example, by a manual input during maintenance work.
  • the switching signal can be given by a device for voltage regulation if, for example, the voltage at the transformer 20 falls or rises.
  • the control unit 10 queries at least one parameter.
  • the queried parameter is the position of the double turner 18, that is to say of the second switching means 18, which the associated feedback system 6 of the first motor 12 determines.
  • At least one locking condition is stored in a memory 5, which can or cannot be fulfilled by the at least one parameter. If this is met when checking the interlocking condition, the on-load tap changer 17 is switched by means of the first motor 12 assigned to it. If the interlocking condition is not met in the checking, actuation of the on-load tap changer 17 can be canceled, for example; so there is also no switchover. An error message can also be generated. However, the circuit can also be carried out in spite of the interlocking condition not being met if it is an emergency situation. The control unit 10 can then wait until the parameter fulfills the locking condition and then performs the switchover. Alternatively, the switchover can be canceled before it begins.
  • an on-load tap-changer 17 Prior to actuation When an on-load tap-changer 17 is activated, it must first be checked in which position (posi tion) the double turner 18 is located and / or whether it is definitely moving, i.e. is being actuated. Due to the locking conditions in this example, the on-load tap-changer 17 must not be operated if the double turner 18 is currently being operated or, for example, is in an unsuitable / non-permitted position (position). The parameters necessary for checking the locking conditions are output by the second feedback system 7 of the second motor 13 of the double turner 18.
  • the feedback system 6 or 7 is designed, for example, as a multiturn rotary encoder that is connected directly or indirectly to the drive shaft 16, which is arranged between the second motor 13 and the double turner 18.
  • the multiturn rotary encoder determines the parameters, such as the position of the double turner 18, on the basis of the position of the drive shaft 16.
  • the first feedback systems 6 of the load step switch 17 are designed analogously.
  • different parameters can be combined with different locking conditions.
  • the position of the two double-turners 18 is checked before the on-load tap-changer 17 is actuated.
  • the locking conditions that is, the parameters of the load level switch 17 and the first double turner 18, are checked prior to actuation of the second double turner 18.
  • the parameters are queried via the respective feedback systems 6 and 7, which are designed as multiturn rotary encoders.
  • the parameters to be queried can be determined as desired or of any type.
  • the parameters can be determined from feedback systems 6 and 7 on the motors 12 and 13 of the respective on-load tap-changers 17 and the respective double-turners 18, which can be simple safety switches of the transformer 20 or even customer-specific release buttons.
  • the feedback system 6 and 7 could be a part of the control unit 10, which counts the switching or stops a time and provides the one parameter to be queried for a locking condition.
  • the feedback systems 6 and 7 are directly or indirectly connected to the drive shafts 16, which are arranged between tween the respective motor 12 or 13 and the on-load tap-changer 17 or the double turner 18, respectively.
  • the parameters, such as tap position, movement, etc., for the on-load tap changer 17 or the double turner 18 are determined from the positions of the drive shaft 16.
  • the interlocking conditions define which states must be fulfilled so that a switchover is not "locked”, ie blocked. These conditions are linked to parameters which are formed or defined by positions or positions of the on-load tap-changer 17 or the double turner 18, current status and movement states.
  • the locking conditions can use one or more parameters from one or any number of feedback systems 6, 7.
  • the parameters include, for example, the movement states of the on-load tap-changer 17 or the double turner 18, position or position of the on-load tap-changer 17 or the double turner 18, position range or position range of the on-load tap-changer 17 or the double turner 18, temperatures, customer-specific switching signals, safety devices and similar.

Landscapes

  • Control Of Multiple Motors (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

L'invention cocnerne un procédé permettant d'effectuer une commutation d'un moyen d'exploitation (20). Le moyen d'exploitation (20) comprend au moins un premier moyen de commutation (17) qui peut être un changeur de prises en charge et/ou au moins un second moyen de commutation (18) qui peut être un inverseur double (18). L'invention concerne en outre un système d'entraînement (3) pour au moins le premier et le second moyen de commutation (17, 18) du moyen d'exploitation (20). Un moteur spécifique (12, 13) est associé à chacun des premiers moyens de commutation (17) et à chacun des seconds moyens de commutation (18), le moteur étant relié par l'intermédiaire d'un arbre primaire (16) au premier moyen de commutation (17) et à chacun des seconds moyens de commutation (18). Au moins un paramètre peut être déterminé pour le premier moyen de commutation (17) et chacun des seconds moyens de commutation (18), au moyen dans chaque cas d'un système de rétroaction (6, 7) qui est associé au premier moteur (12) et à chacun des seconds moteurs (13). Les paramètres déterminés définissent les conditions de verrouillage pour le premier moyen de commutation (17) et le second moyen de commutation (18).
EP20721214.3A 2019-05-15 2020-04-23 Procédé pour effectuer une commutation d'au moins un moyen de commutation d'un moyen d'exploitation et système d'entraînement pour au moins un moyen de commutation d'un moyen d'exploitation Pending EP3963618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112718.1A DE102019112718A1 (de) 2019-05-15 2019-05-15 Verfahren zum Durchführen einer Umschaltung von mindestens einem Schaltmittel eines Betriebsmittels und Antriebssystem für mindestens ein Schaltmittel eines Betriebsmittels
PCT/EP2020/061286 WO2020229125A1 (fr) 2019-05-15 2020-04-23 Procédé pour effectuer une commutation d'au moins un moyen de commutation d'un moyen d'exploitation et système d'entraînement pour au moins un moyen de commutation d'un moyen d'exploitation

Publications (1)

Publication Number Publication Date
EP3963618A1 true EP3963618A1 (fr) 2022-03-09

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Application Number Title Priority Date Filing Date
EP20721214.3A Pending EP3963618A1 (fr) 2019-05-15 2020-04-23 Procédé pour effectuer une commutation d'au moins un moyen de commutation d'un moyen d'exploitation et système d'entraînement pour au moins un moyen de commutation d'un moyen d'exploitation

Country Status (8)

Country Link
US (1) US20220223357A1 (fr)
EP (1) EP3963618A1 (fr)
JP (1) JP2022533929A (fr)
KR (1) KR20220006566A (fr)
CN (1) CN113826179A (fr)
BR (1) BR112021020881A2 (fr)
DE (1) DE102019112718A1 (fr)
WO (1) WO2020229125A1 (fr)

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DE102022123571B3 (de) 2022-09-15 2023-10-26 Maschinenfabrik Reinhausen Gmbh System zur betätigung eines stufenschalters

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CN109361186B (zh) * 2018-12-06 2020-05-19 四川大学 用于防冰融冰的站用无损单相分流器与设计和控制方法

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DE102019112718A1 (de) 2020-11-19
WO2020229125A1 (fr) 2020-11-19
BR112021020881A2 (pt) 2021-12-21
KR20220006566A (ko) 2022-01-17
US20220223357A1 (en) 2022-07-14
JP2022533929A (ja) 2022-07-27

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