WO2008040263A1 - Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique - Google Patents

Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique Download PDF

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Publication number
WO2008040263A1
WO2008040263A1 PCT/DE2006/001754 DE2006001754W WO2008040263A1 WO 2008040263 A1 WO2008040263 A1 WO 2008040263A1 DE 2006001754 W DE2006001754 W DE 2006001754W WO 2008040263 A1 WO2008040263 A1 WO 2008040263A1
Authority
WO
WIPO (PCT)
Prior art keywords
protection
protective
protection device
devices
main
Prior art date
Application number
PCT/DE2006/001754
Other languages
German (de)
English (en)
Inventor
Klaus BÖHME
Gerhard Lang
Ludwig Schiel
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112006004166T priority Critical patent/DE112006004166A5/de
Priority to PCT/DE2006/001754 priority patent/WO2008040263A1/fr
Priority to EP06805374A priority patent/EP2070172A1/fr
Publication of WO2008040263A1 publication Critical patent/WO2008040263A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals

Definitions

  • protection devices are complex devices in a fault-sensitive system, redundancy requirements are frequently made in order to provide a backup protection device in the event of the failure of a protection device, which can take over the functions of the failed protection device without interruption.
  • a disadvantage of this protection system is that in the case of failure of one of the protection devices 23a, 23b at the branches 22a, 22b by the additional protection device 24, the entire busbar 21 including all outgoing branches 22a, 22b is turned off, so inevitably from this shutdown faultless branches are affected.
  • a protection device is used as the main protection device 31 for the simultaneous monitoring of two branches 32a, 32b.
  • the main protection device 31 may be connected in parallel with a second protection device as a reserve protection device 33, which assumes its protective tasks in the event of a failure of the main protection device 31.
  • the object of the invention is to specify a redundant protection system and a method for the redundant monitoring of protective objects in an electrical energy supply network, with which a high degree of availability of the protection is ensured at the lowest possible cost.
  • a local process bus connected to the respective protection object is provided for the main protection devices for detecting the voltage and / or current measurement values and for outputting the trigger signal, and for the reserve protection device for detecting the voltage and current and / or current readings and for the delivery of the triggering signal, a cross-process bus connected to all protection objects, which is different from the local process buses is.
  • a separate communication system for transmitting the measured values is created, which supplies the individual main protective devices in each case via separate process buses and the backup protection device via an overarching process bus with the corresponding voltage and / or current measured values of the protective objects. In this way, the overload of a single process bus due to excessive amounts of data can be effectively avoided.
  • Figure 2 shows a second embodiment of a redundant protection system according to the prior art
  • Figure 3 shows a third embodiment of a redundant protection system according to the prior art
  • Figure 5 is a schematic representation of a redundant
  • FIG. 6 shows a redundant protection system with two protection objects and two protection devices for the protection objects main protection and backup protection
  • FIG. 7 shows a redundant protection system with three protective objects and three protective devices carrying three main and backup protections.
  • the voltage measurement values characterizing the voltage applied to the respective branch 42a, 42b can be detected with the voltage converter devices not shown in FIG. 4 for the sake of clarity.
  • the respective electrical protection device 44a, 44b using so-called protection algorithms, make a decision as to whether or not there is a fault on the respective branch 42a, 42b.
  • the respective electrical protection device 44a, 44b outputs a trigger signal A via a command output to the respective circuit breaker 43a, 43b in order to cause it to open its switching contacts and thus faulty branch 42a, 42b separate from the rest of the power grid.
  • the electrical protection devices 44a, 44b normally perform the protective functions for the protective object assigned to them, ie in this case the branches 42a and 42b, they represent the main protective devices for the branches 42a, 42b.
  • the reserve protection device 46 makes a decision as to whether or not there is an error on the respective branch 42a, 42b.
  • the reserve protection device 46 also has the option of causing the power switches 43a, 43b to open their switching contacts via a triggering signal.
  • the backup protection device 46 will however not send a triggering signal to the power switches 43a, 43b, since it works only in the background, but initially does not perform active protection functions. However, if one of the main protection devices 44a, 44b fails, it can seamlessly take over its functions since, as already mentioned, the current and / or voltage measurement values required for the determination of the decision are continuously (ie also in the case of functional main protection devices 44a, 44b) Branches 42a, 42b gets transmitted.
  • the failure of one of the main protection devices 44a, 44b can be recognized by the reserve protection device 46 in various ways.
  • a regular exchange of signals can take place which indicate the full functionality of the main protection devices 44a, 44b.
  • the backup protection device 46 closes on the failure of one of the main protection devices and seamlessly takes over its functions for the corresponding branch 42a, 42b.
  • Such a rather local process bus connects the respective protected object 51a, 51b, 51c with its associated main protection device 52a, 52b, 52c.
  • the measured values can be transmitted in analog or digital form. In a digital transmission, the measured values can be For example, according to the Ethernet standard to the protection devices 52a, 52b, 52c are transmitted.
  • a common reserve protection device 54 is provided.
  • This backup protection device 54 receives the current and / or voltage measured values acquired at all protective objects 51a, 51b, 51c. These are communicated between the respective protection object 51a, 51b, 51c and the backup protection device 54 via a cross-process process bus 55.
  • the measured values are used for this purpose with the respectively connected to the main protection devices or the reserve protection device Stromnd. Voltage converters recorded with correspondingly different sampling rates; thus, the persons entering the main protection rate connected current or voltage converter devices, for example, with a sampling rate of 10 kHz, while the connected to the reserve protection device Stromnd. Voltage transformers record their measurements with a reduced sampling rate of 1 kHz, for example.
  • the lower sampling rate enables the transmission of measured values of all protection objects on the overall process bus, without overloading the transmission bandwidth of the overall process bus.
  • the current or voltage conversion means present on the corresponding protection object 51a, 51b, 51c can be automatically set to a higher sampling rate, and instead of the reduced sampling rate of e.g. 1 kHz, their measurements at the full sampling rate of e.g. Pick up 10 kHz and couple it into the overall process bus.
  • the backup protection device 54 Since the number of protective objects which are monitored by the backup protection device 54 is not limited to three, a high level of protection objects to be monitored can provide to the backup protection device 54 another backup protection device 56. be connected in parallel, which splits with the first backup protection device 46, the monitoring of the protected objects or the redundancy of the system further increased by it can take over its functions in case of failure of the backup protection device.
  • a bus bar 61 is provided, depart from the two branches 62a and 62b.
  • Each branch can be separated from the busbar and thus from the rest of the power supply network by an associated circuit breaker 63a, 63b.
  • two protective devices 64 and 65 are provided for monitoring the branches 62a, 62b for possibly occurring faults.
  • the protective devices 64 and 65 receive current measured values recorded by the current converter devices 66a, 66b as well as voltage measurement values which may also be corresponding to voltage converter devices, not shown.
  • each of the protective devices 64, 65 can output to the power switches 63a, 63b a trigger signal that causes the power switch to open its switch contacts.
  • the backup protection function can normally be carried out with reduced power, that is, for example, as already explained, with current and voltage measured values of a lower sampling rate.
  • the failure detection of one of the two protective devices 64, 65 can be carried out analogously to the methods explained in FIG. 4.
  • FIG. 7 shows a sam- busbar 71, depart from the branches 72a, 72b, 72c.
  • the branches 72a, 72b, 72c can be switched off by power switches 73a, 73b, 73c.
  • three protection devices 74, 75, 76 are present, each of the protection devices 74, 75, 76 is assigned to exactly one protection object as the main protection device and exactly one other protection object as backup protection device.
  • the protective device 74 is associated with the branch 72a as the main protection device and the branch 72b as the reserve protection device.
  • the protective device 75 is assigned to the branch 72b as the main protection device and the branch 72c as the reserve protection device, while the protection device 76 is assigned to the branch 72c as the main protection device and the branch 72a as the reserve protection device.
  • each protection object is assigned exactly one main protection device and a different backup protection device.
  • protection device 74, 75, 76 assigned to it as a reserve protection device can assume its protective functions, so that full redundancy for the protection of the protective objects 72a, 72b, 72c is reached.
  • the number of protective objects is not limited to three, but any number of protective objects can be protected with a correspondingly equal number of protective devices.

Abstract

L'invention concerne un système de protection redondant pour surveiller des objets (42a, 42b) protégés dans un réseau d'alimentation en énergie électrique comprenant au moins deux objets (42a, 42b) protégés et au moins deux appareils (44a, 44b) de protection électriques. Pour accroître selon l'invention la disponibilité d'un tel système de protection, les deux appareils (44a, 44b) de protection électriques ou plus sont chacun configurés comme un appareil de protection principal pour un objet (42a, 42b) protégé et il est prévu un appareil (46) de protection électrique supplémentaire faisant office d'appareil de protection de réserve pour tous les objets (42a, 42b) protégés. En variante, il est également possible de prévoir d'affecter chaque appareil (64, 65) de protection électrique à exactement un objet (62a, 62b) protégé en tant qu'appareil de protection principal et en tant qu'appareil de protection de réserve à exactement un autre objet protégé. L'invention concerne également un procédé de surveillance redondante des objets protégés d'un réseau d'alimentation en énergie.
PCT/DE2006/001754 2006-10-04 2006-10-04 Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique WO2008040263A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112006004166T DE112006004166A5 (de) 2006-10-04 2006-10-04 Redundantes Schutzsystem und Verfahren zum redundanten Überwachen von Schutzobjekten in einem elektrischen Energieversorgungsnetz
PCT/DE2006/001754 WO2008040263A1 (fr) 2006-10-04 2006-10-04 Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique
EP06805374A EP2070172A1 (fr) 2006-10-04 2006-10-04 Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2006/001754 WO2008040263A1 (fr) 2006-10-04 2006-10-04 Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique

Publications (1)

Publication Number Publication Date
WO2008040263A1 true WO2008040263A1 (fr) 2008-04-10

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PCT/DE2006/001754 WO2008040263A1 (fr) 2006-10-04 2006-10-04 Système de protection redondant et procédé de surveillance redondante d'objets protégés dans un réseau d'alimentation en énergie électrique

Country Status (3)

Country Link
EP (1) EP2070172A1 (fr)
DE (1) DE112006004166A5 (fr)
WO (1) WO2008040263A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159893A1 (fr) 2008-08-29 2010-03-03 ABB Research LTD Systèmes d'automatisation d'une sous-station avec protection redondante
EP2273644A1 (fr) * 2009-07-07 2011-01-12 ABB Research Ltd. Système d'automatisation de sous-station avec fonctions de protection
WO2011121386A1 (fr) * 2010-03-31 2011-10-06 Abb Research Ltd Procédé de transfert de la commande entre deux dispositifs dans un système de sous-station, ainsi que dispositif correspondant
CN103931070A (zh) * 2011-11-11 2014-07-16 株式会社东芝 保护控制系统、保护控制装置以及合并单元
EP3460935A1 (fr) * 2017-09-22 2019-03-27 ABB Schweiz AG Procédé et système de protection d'alimentation dans un réseau d'alimentation électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2693587A1 (fr) * 2012-08-03 2014-02-05 ABB Technology AG Dispositif fiable pour la protection des transformateurs de tension

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4663691A (en) * 1984-07-31 1987-05-05 Bbc Brown, Boveri & Company, Limited Safety mechanism for electrical power line
US6567256B1 (en) * 1993-08-06 2003-05-20 Schweitzer Engineering Labs, Inc. Dual protective relay for power systems
US20030212515A1 (en) * 2002-02-25 2003-11-13 General Electric Company Data sample and transmission modules for power distribution systems
EP1450459A1 (fr) * 2003-02-20 2004-08-25 Abb Research Ltd. Sous-station avec des barres omnibus tolérante aux défauts avec des interrupteurs de protéction et methode de contrôle d'une telle sous-station

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663691A (en) * 1984-07-31 1987-05-05 Bbc Brown, Boveri & Company, Limited Safety mechanism for electrical power line
US6567256B1 (en) * 1993-08-06 2003-05-20 Schweitzer Engineering Labs, Inc. Dual protective relay for power systems
US20030212515A1 (en) * 2002-02-25 2003-11-13 General Electric Company Data sample and transmission modules for power distribution systems
EP1450459A1 (fr) * 2003-02-20 2004-08-25 Abb Research Ltd. Sous-station avec des barres omnibus tolérante aux défauts avec des interrupteurs de protéction et methode de contrôle d'une telle sous-station

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8433451B2 (en) 2008-08-29 2013-04-30 Abb Research Ltd Substation automation with redundant protection
WO2010066476A1 (fr) * 2008-08-29 2010-06-17 Abb Research Ltd Automatisation de sous-station comportant une protection redondante
CN102132469B (zh) * 2008-08-29 2015-08-12 Abb研究有限公司 具有冗余保护的变电站自动化
EP2159893A1 (fr) 2008-08-29 2010-03-03 ABB Research LTD Systèmes d'automatisation d'une sous-station avec protection redondante
CN102132469A (zh) * 2008-08-29 2011-07-20 Abb研究有限公司 具有冗余保护的变电站自动化
WO2011003675A1 (fr) * 2009-07-07 2011-01-13 Abb Research Ltd Système d'automatisation de sous-station à fonction de protection redondante à distance
CN102474095A (zh) * 2009-07-07 2012-05-23 Abb研究有限公司 具有远程冗余保护功能的变电站自动化系统
EP2273644A1 (fr) * 2009-07-07 2011-01-12 ABB Research Ltd. Système d'automatisation de sous-station avec fonctions de protection
US9136697B2 (en) 2009-07-07 2015-09-15 Abb Research Ltd Substation automation system with protection functions
EP2452410B1 (fr) 2009-07-07 2019-05-22 ABB Research Ltd. Système d'automatisation de sous-station à fonction de protection redondante à distance
WO2011121386A1 (fr) * 2010-03-31 2011-10-06 Abb Research Ltd Procédé de transfert de la commande entre deux dispositifs dans un système de sous-station, ainsi que dispositif correspondant
US9478973B2 (en) 2010-03-31 2016-10-25 Abb Schweiz Ag Method for transfer of control between devices in a substation system and a device thereof
CN103931070A (zh) * 2011-11-11 2014-07-16 株式会社东芝 保护控制系统、保护控制装置以及合并单元
EP3460935A1 (fr) * 2017-09-22 2019-03-27 ABB Schweiz AG Procédé et système de protection d'alimentation dans un réseau d'alimentation électrique
US11056877B2 (en) 2017-09-22 2021-07-06 Abb Schweiz Ag Method and system for feeder protection in electrical power network

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Publication number Publication date
DE112006004166A5 (de) 2009-09-10
EP2070172A1 (fr) 2009-06-17

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