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EP1310029A1 - Protection for power grid having an infrared data transmission link using the wap protocol - Google Patents

Protection for power grid having an infrared data transmission link using the wap protocol

Info

Publication number
EP1310029A1
EP1310029A1 EP01965317A EP01965317A EP1310029A1 EP 1310029 A1 EP1310029 A1 EP 1310029A1 EP 01965317 A EP01965317 A EP 01965317A EP 01965317 A EP01965317 A EP 01965317A EP 1310029 A1 EP1310029 A1 EP 1310029A1
Authority
EP
European Patent Office
Prior art keywords
protection
data transmission
circuit breakers
transmission link
link
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.)
Ceased
Application number
EP01965317A
Other languages
German (de)
French (fr)
Inventor
Dominique Montjean
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.)
Grid Solutions SAS
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1310029A1 publication Critical patent/EP1310029A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02H1/0069—Details of emergency protective circuit arrangements concerning transmission of signals by means of light or heat rays

Definitions

  • the invention relates to a digital protection for an electrical network, intended to control the opening of circuit breakers in the event of faults detected by current and / or voltage sensors on lines of the network connected to the circuit breakers, and comprising a transmission link. data with a remote device.
  • Such protection is more particularly used in high voltage electrical substations. It generally includes a processor which receives current and / or voltage values measured by the sensors mounted on the lines to be monitored from the network, compares these measured current and / or voltage values with corresponding reference values and in the case where the current and / or voltage values measured cross the corresponding setpoint values, the processor commands the opening of one or more circuit breakers to cut the faulty line (s) from the electrical network.
  • a processor which receives current and / or voltage values measured by the sensors mounted on the lines to be monitored from the network, compares these measured current and / or voltage values with corresponding reference values and in the case where the current and / or voltage values measured cross the corresponding setpoint values, the processor commands the opening of one or more circuit breakers to cut the faulty line (s) from the electrical network.
  • a portable computer which is connected to the protection by a wired type data transmission link.
  • the laptop computer not only makes it easy to enter these setpoints on the keyboard, but also to extend the possibilities for an operator to modify and edit them on the screen.
  • the laptop due to the fact that the laptop is connected by a wired type data transmission link to the protection system, it can be subject to disturbances and malfunctions due to the severe electromagnetic environment prevailing in the electrical substation around of protection.
  • a laptop is a relatively fragile device, bulky and which is not well suited to the conditions of use in a high voltage substation. The object of the invention is to remedy these drawbacks.
  • the subject of the invention is digital protection for the electrical network, intended to control the opening of circuit breakers in the event of faults detected by current and / or voltage sensors on lines of the network connected to the circuit breakers, and comprising a data transmission link with a remote device, characterized in that said link is an infrared link using the WAP application protocol allowing wireless and remote communication between the remote device and an infrared communication port of the protection.
  • the remote device is a portable telephone and in particular a so-called second generation portable telephone which is provided with an infrared communication port and which can be configured to communicate by this infrared port according to the WAP wireless application protocol.
  • This type of telephone currently available on the market, has a good-sized screen with keys and Internet browsing software. It is therefore understandable that a protection in which is loaded an input / modification / editing program compatible with Internet browsing software, can be configured very easily and inexpensively using a small and inexpensive mobile phone. expensive.
  • the infrared data transmission link provides very safe galvanic isolation between the protection and the mobile phone.
  • the digital protection for an electrical network comprises a box 1 in which is housed electronics and in particular a processor 2.
  • This processor is connected in a known manner to a man / machine interface (not shown) of the type screen / keyboard mounted on the front panel 3 of the cabinet.
  • the protection also includes current sensors 4,5,6 and / or voltage sensors 7,8,9 mounted on the lines to be monitored from the network, here the three lines 10,11, 12, and circuit breakers 13,14 , 15 which are used to cut the lines when they are faulty.
  • the current sensors and / or the voltage sensors are connected to the cabinet 1 to supply measured values of current and / or voltage to the processor 2 and the circuit breakers are connected to the cabinet 1 to receive control signals from the processor 2. opening.
  • Processor 2 is programmed to compare the measured values with setpoints stored in memory in box 1 and to supply the opening control signals to the circuit breakers when it detects that the measured values exceed the setpoints.
  • an infrared communication port 16 is provided in the front face of the box 1 and is connected to the processor 2.
  • the processor 1 is programmed to execute an interactive program for entering / modifying / editing the set values in the box 1 by communicating through the infrared communication port 16 according to the WAP wireless application Internet protocol.
  • the interactive entry / modification / editing program is therefore designed as a compatible Internet server for Internet browsing.
  • Communication with the input / modification / editing program is done remotely and wirelessly via a portable cellular telephone 17 which is also provided with an infrared communication port 18 and which communicates through its communication port infrared according to the WAP wireless Internet application protocol.
  • This telephone 17 is more particularly a so-called second generation portable cellular telephone available on the market and provided with a screen 19, an alphanumeric keyboard 20 and one or more Internet navigation keys 21.
  • Such a telephone has functionalities equivalent to a laptop computer for entering / changing / editing setpoints or other protection data.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention concerns digital protection for a high voltage power grid, designed to control the opening of circuit-breakers (13, 14, 15) in case of faults detected by current and/or voltage sensors on the distribution lines (10, 11, 12) connected to the circuit-breakers, comprising a data transmission link with an infrared portable telephone (16, 18). The transmission uses the wireless application protocol (WAP).

Description

Protection pour réseau électrique ayant une liaison de transmission de données infrarouge utilisant le protocole WAPProtection for electrical network having an infrared data transmission link using the WAP protocol
L'invention porte sur une protection numérique pour réseau électrique, destinée à commander l'ouverture de disjoncteurs en cas de défauts relevés par des capteurs de courant et/ou de tension sur des lignes du réseau reliées aux disjoncteurs, et comprenant une liaison de transmission de données avec un appareil distant.The invention relates to a digital protection for an electrical network, intended to control the opening of circuit breakers in the event of faults detected by current and / or voltage sensors on lines of the network connected to the circuit breakers, and comprising a transmission link. data with a remote device.
Une telle protection est plus particulièrement utilisée dans les postes électriques haute tension. Elle comprend généralement un processeur qui reçoit des valeurs de courant et/ou de tension mesurées par les capteurs montés sur les lignes à surveiller du réseau, compare ces valeurs de courant et/ou de tension mesurées à des valeurs de consigne correspondantes et dans le cas où les valeurs de courant et/ou de tension mesurées franchissent les valeurs de consigne correspondantes, le processeur commande l'ouverture d'un ou des disjoncteurs pour couper la ou les lignes en défaut du réseau électrique.Such protection is more particularly used in high voltage electrical substations. It generally includes a processor which receives current and / or voltage values measured by the sensors mounted on the lines to be monitored from the network, compares these measured current and / or voltage values with corresponding reference values and in the case where the current and / or voltage values measured cross the corresponding setpoint values, the processor commands the opening of one or more circuit breakers to cut the faulty line (s) from the electrical network.
Jusqu'à présent, pour charger ces valeurs de consignes dans la protection, on utilise un ordinateur portable qui est raccordé à la protection par une liaison de transmission de données du type filaire. L'ordinateur portable permet non seulement de saisir facilement ces valeurs de consigne au clavier, mais également d'étendre les possibilités pour un opérateur de les modifier et de les éditer à l'écran. Toutefois, du fait que l'ordinateur portable est relié par une liaison de transmission de données de type filaire au système de protection, il peut être sujet à des perturbations et à des dysfonctionnements dues à l'environnement électromagnétique sévère régnant dans le poste électrique autour de la protection. En plus, un ordinateur portable est un appareil relativement fragile, encombrant et qui ne convient pas bien aux conditions d'utilisation dans un poste électrique haute tension. Le but de l'invention est de remédier à ces inconvénients.Up to now, to load these setpoint values into the protection, a portable computer has been used which is connected to the protection by a wired type data transmission link. The laptop computer not only makes it easy to enter these setpoints on the keyboard, but also to extend the possibilities for an operator to modify and edit them on the screen. However, due to the fact that the laptop is connected by a wired type data transmission link to the protection system, it can be subject to disturbances and malfunctions due to the severe electromagnetic environment prevailing in the electrical substation around of protection. In addition, a laptop is a relatively fragile device, bulky and which is not well suited to the conditions of use in a high voltage substation. The object of the invention is to remedy these drawbacks.
A cet effet, l'invention a pour objet une protection numérique pour réseau électrique, destinée à commander l'ouverture de disjoncteurs en cas de défauts relevés par des capteurs de courant et/ou de tension sur des lignes du réseau reliées aux disjoncteurs, et comprenant une liaison de transmission de données avec un appareil distant, caractérisée en ce que ladite liaison est une liaison infrarouge utilisant le protocole d'application WAP permettant une communication sans fil et à distance entre l'appareil distant et un port de communication infrarouge de la protection.To this end, the subject of the invention is digital protection for the electrical network, intended to control the opening of circuit breakers in the event of faults detected by current and / or voltage sensors on lines of the network connected to the circuit breakers, and comprising a data transmission link with a remote device, characterized in that said link is an infrared link using the WAP application protocol allowing wireless and remote communication between the remote device and an infrared communication port of the protection.
Selon un mode de réalisation particulier de la protection selon l'invention, l'appareil distant est un téléphone portable et en particulier un téléphone portable dit de seconde génération qui est muni d'un port de communication infrarouge et qui peut être configuré pour communiquer par ce port infrarouge selon le protocole d'application sans fil WAP. Ce type de téléphone, actuellement disponible sur le marché, dispose d'un écran de bonne dimensions avec des touches et un logiciel de navigation Internet. On conçoit donc qu'une protection dans laquelle est chargé un programme de saisie/modification/édition compatible avec un logiciel de navigation Internet, peut être paramétrée très facilement et à moindre coût à l'aide d'un téléphone mobile de petite dimensions et peu coûteux. De plus, la liaison de transmission de données infrarouge permet d'obtenir une isolation galvanique très sure entre la protection et le téléphone portable.According to a particular embodiment of the protection according to the invention, the remote device is a portable telephone and in particular a so-called second generation portable telephone which is provided with an infrared communication port and which can be configured to communicate by this infrared port according to the WAP wireless application protocol. This type of telephone, currently available on the market, has a good-sized screen with keys and Internet browsing software. It is therefore understandable that a protection in which is loaded an input / modification / editing program compatible with Internet browsing software, can be configured very easily and inexpensively using a small and inexpensive mobile phone. expensive. In addition, the infrared data transmission link provides very safe galvanic isolation between the protection and the mobile phone.
Un exemple de réalisation de la protection numérique pour réseau électrique selon l'invention est décrit ci-après et illustré sur la figure unique. La protection numérique pour réseau électrique haute tension montrée sur la figure comprend un coffret 1 dans lequel est logé de l'électronique et en particulier un processeur 2. Ce processeur est relié de façon connue à une interface homme/machine (non représentée) du type écran/clavier montée sur la face avant 3 du coffret. La protection comprend encore des capteurs de courant 4,5,6 et/ou des capteurs de tension 7,8,9 montés sur les lignes à surveiller du réseau, ici les trois lignes 10,11 ,12, et des disjoncteurs 13,14,15 qui servent à couper les lignes quand elles sont en défaut. Les capteurs de courant et/ou les capteurs de tension sont reliés au coffret 1 pour fournir des valeurs mesurées de courant et/ou de tension au processeur 2 et les disjoncteurs sont reliés au coffret 1 pour recevoir du processeur 2 des signaux de commande d'ouverture. Le processeur 2 est programmé pour comparer les valeurs mesurées à des valeurs de consigne enregistrées en mémoire dans le coffret 1 et pour fournir les signaux de commande d'ouverture aux disjoncteurs quand il détecte que les valeurs mesurées franchissent les valeurs de consigne.An exemplary embodiment of the digital protection for an electrical network according to the invention is described below and illustrated in the single figure. The digital protection for high voltage electrical network shown in the figure comprises a box 1 in which is housed electronics and in particular a processor 2. This processor is connected in a known manner to a man / machine interface (not shown) of the type screen / keyboard mounted on the front panel 3 of the cabinet. The protection also includes current sensors 4,5,6 and / or voltage sensors 7,8,9 mounted on the lines to be monitored from the network, here the three lines 10,11, 12, and circuit breakers 13,14 , 15 which are used to cut the lines when they are faulty. The current sensors and / or the voltage sensors are connected to the cabinet 1 to supply measured values of current and / or voltage to the processor 2 and the circuit breakers are connected to the cabinet 1 to receive control signals from the processor 2. opening. Processor 2 is programmed to compare the measured values with setpoints stored in memory in box 1 and to supply the opening control signals to the circuit breakers when it detects that the measured values exceed the setpoints.
Comme visible sur la figure, un port de communication infrarouge 16 est prévu dans la face avant du coffret 1 et est relié au processeur 2. Le processeur 1 est programmé pour exécuter un programme interactif de saisie/modification/édition des valeurs de consigne dans le boîtier 1 en communiquant à travers le port de communication infrarouge 16 selon le protocole Internet d'application sans fil WAP. Le programme interactif de saisie/modification/édition est donc conçu comme un serveur Internet compatible pour une navigation Internet. La communication avec le programme de saisie/modification/édition se fait à distance et sans fil par l'intermédiaire d'un téléphone cellulaire portable 17 qui est muni également d'un port de communication infrarouge 18 et qui communique à travers son port de communication infrarouge selon le protocole Internet d'application sans fil WAP. Ce téléphone 17 est plus particulièrement un téléphone cellulaire portable dit de seconde génération disponible sur le marché et muni d'un écran 19, d'un clavier alphanumérique 20 et d'une ou plusieurs touches de navigation Internet 21. Un tel téléphone présente des fonctionnalités équivalentes à un ordinateur portatif pour la saisie/modification/édition des valeurs de consigne ou d'autres données de la protection. As visible in the figure, an infrared communication port 16 is provided in the front face of the box 1 and is connected to the processor 2. The processor 1 is programmed to execute an interactive program for entering / modifying / editing the set values in the box 1 by communicating through the infrared communication port 16 according to the WAP wireless application Internet protocol. The interactive entry / modification / editing program is therefore designed as a compatible Internet server for Internet browsing. Communication with the input / modification / editing program is done remotely and wirelessly via a portable cellular telephone 17 which is also provided with an infrared communication port 18 and which communicates through its communication port infrared according to the WAP wireless Internet application protocol. This telephone 17 is more particularly a so-called second generation portable cellular telephone available on the market and provided with a screen 19, an alphanumeric keyboard 20 and one or more Internet navigation keys 21. Such a telephone has functionalities equivalent to a laptop computer for entering / changing / editing setpoints or other protection data.

Claims

REVENDICATIONS
1/ Une protection numérique pour réseau électrique, destinée à commander l'ouverture de disjoncteurs (13,14,15) en cas de défauts relevés par des capteurs de courant et/ou de tension sur des lignes (10,11 ,12) du réseau reliées aux disjoncteurs, et comprenant une liaison de transmission de données avec un appareil distant, caractérisée en ce ladite liaison est une liaison infrarouge (16,18) utilisant le protocole d'application WAP permettant une communication sans fil et à distance entre l'apparail distant et un port de communication infrarouge (16) de la protection.1 / Digital protection for the electrical network, intended to control the opening of circuit breakers (13,14,15) in the event of faults detected by current and / or voltage sensors on lines (10,11,12) of the network connected to the circuit breakers, and comprising a data transmission link with a remote device, characterized in that said link is an infrared link (16,18) using the WAP application protocol allowing wireless and remote communication between the remote device and an infrared communication port (16) for protection.
2/ La protection numérique selon la revendication 1 , dans laquelle l'appareil distant est un téléphone portable (17).2 / The digital protection according to claim 1, in which the remote device is a portable telephone (17).
3/ La protection numérique selon la revendication 2, comprenant un processeur (2) programmé pour recevoir des valeurs de mesure de courant et/ou de tension, comparer ces valeurs de mesure à des valeurs de consigne correspondantes maintenues en mémoire dans la protection et en réponse à ladite comparaison, fournir des signaux de commande d'ouverture aux disjoncteurs (13,14,15), et dans laquelle ledit processeur est en outre programmé pour exécuter un programme interactif de saisie/modification/édition desdites valeurs de consigne en communiquant à travers la liaison infrarouge avec le téléphone portable selon le protocole d'application sans fil WAP. 3 / The digital protection according to claim 2, comprising a processor (2) programmed to receive current and / or voltage measurement values, compare these measurement values with corresponding reference values maintained in memory in the protection and in response to said comparison, providing opening control signals to circuit breakers (13,14,15), and wherein said processor is further programmed to execute an interactive program for entering / modifying / editing said setpoints by communicating to through the infrared link with the mobile phone according to the WAP wireless application protocol.
EP01965317A 2000-08-10 2001-08-08 Protection for power grid having an infrared data transmission link using the wap protocol Ceased EP1310029A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0010519A FR2812981B1 (en) 2000-08-10 2000-08-10 PROTECTION FOR AN ELECTRICAL NETWORK HAVING AN INFRARED DATA TRANSMISSION LINK USING THE WAP PROTOCOL
FR0010519 2000-08-10
PCT/FR2001/002576 WO2002013349A1 (en) 2000-08-10 2001-08-08 Protection for power grid having an infrared data transmission link using the wap protocol

Publications (1)

Publication Number Publication Date
EP1310029A1 true EP1310029A1 (en) 2003-05-14

Family

ID=8853460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01965317A Ceased EP1310029A1 (en) 2000-08-10 2001-08-08 Protection for power grid having an infrared data transmission link using the wap protocol

Country Status (6)

Country Link
US (1) US6704568B2 (en)
EP (1) EP1310029A1 (en)
JP (1) JP2004506400A (en)
AU (1) AU2001285984A1 (en)
FR (1) FR2812981B1 (en)
WO (1) WO2002013349A1 (en)

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Also Published As

Publication number Publication date
WO2002013349A1 (en) 2002-02-14
AU2001285984A1 (en) 2002-02-18
FR2812981A1 (en) 2002-02-15
JP2004506400A (en) 2004-02-26
FR2812981B1 (en) 2002-10-18
US20020032026A1 (en) 2002-03-14
US6704568B2 (en) 2004-03-09

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