WO2014059721A1 - Procédé de transition pour processus de modification de système de surveillance pendant la modification intelligente d'un poste électrique classique - Google Patents

Procédé de transition pour processus de modification de système de surveillance pendant la modification intelligente d'un poste électrique classique Download PDF

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Publication number
WO2014059721A1
WO2014059721A1 PCT/CN2012/084624 CN2012084624W WO2014059721A1 WO 2014059721 A1 WO2014059721 A1 WO 2014059721A1 CN 2012084624 W CN2012084624 W CN 2012084624W WO 2014059721 A1 WO2014059721 A1 WO 2014059721A1
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WO
WIPO (PCT)
Prior art keywords
measurement
protocol
control device
busbar
intelligent
Prior art date
Application number
PCT/CN2012/084624
Other languages
English (en)
Chinese (zh)
Inventor
庄黎明
周健
陈建民
张培鸿
陈跃
代小翔
Original Assignee
上海市电力公司
华东电力试验研究院有限公司
华东电网有限公司
中国电力工程顾问集团华东电力设计院
国家电网公司
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 上海市电力公司, 华东电力试验研究院有限公司, 华东电网有限公司, 中国电力工程顾问集团华东电力设计院, 国家电网公司 filed Critical 上海市电力公司
Publication of WO2014059721A1 publication Critical patent/WO2014059721A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations

Definitions

  • the invention belongs to the field of power distribution and the like, and particularly relates to an intelligent transformation method for a conventional substation. Background technique
  • Substations using conventional transformers and secondary equipment are often referred to as conventional substations.
  • smart substations also known as digital substations.
  • the intelligent transformation of substation focuses on the intelligent transformation and networking of related equipment in the measurement, control, protection, metering and monitoring systems of existing substation primary equipment, and the construction of a process layer (equipment layer) and spacer layer. And the intelligent substation of the station control layer.
  • the process layer (device layer) of the intelligent substation includes intelligent equipment, merging unit and intelligent terminal composed of primary equipment and intelligent components, and completes substation power distribution, transformation, transmission and measurement, control, protection, measurement, condition monitoring, etc.
  • the interval device of the intelligent substation generally refers to secondary equipment such as relay protection device, measurement and control device, etc., which realizes the function of using one interval of data and acts on the device at the interval, that is, with various remote input/output, intelligent sensors. Communication with the controller;
  • the station control layer of the intelligent substation includes subsystems such as automation system, station domain control, communication system, and timing system, which realizes measurement and control functions for all stations or more than one primary device, and completes data acquisition and monitoring. Control
  • SCADA Supervisory Control And Data Acquisition
  • operational latching and related functions such as synchronized phasor acquisition, electrical energy harvesting, and protection information management.
  • the existing investment in conventional substation equipment is very large, so the transformation of it cannot be reversed. It must take into account the existing equipment conditions and service life, and advance step by step and step by step.
  • the intelligent transformation of conventional substations is different from the construction of new substations, and is also different from the traditional transformation of conventional substations. Before the entire substation system transformation work is completed, the new and old automation monitoring systems must work together. The conventional monitoring and control devices and the intelligent measurement and control devices must also be able to interoperate to some extent.
  • each measurement and control device is modified one by one and then connected to the intelligent station control layer network.
  • the unmodified monitoring and control device is connected to the IEC 103 protocol communication network of the original microcomputer monitoring system, and the modified monitoring and controlling device is connected to the intelligent monitoring and control IEC 61850 protocol network.
  • the technical problem to be solved by the present invention is to provide a transition method for a conventional substation to carry out an intelligent transformation monitoring system transformation process, which ensures that during the transformation process, the unmodified monitoring system part and the completed monitoring system have complete intervals.
  • the cascading blocking logic ensures the integrity of the monitoring system and the continuous and safe operation of the substation during the intelligent transformation of the existing conventional substation.
  • the technical solution of the present invention is: providing a transition method for a conventional substation to perform an intelligent transformation monitoring system transformation process, including device switching and functional replacement of a 103 protocol network and a 61850 protocol network, wherein the transition method includes at least the following step-
  • interval interlocking interlock function associated with the busbar measurement and control device in the 61850 protocol intelligent station control layer network is suspended, and the logic locking function of the station control layer is used to ensure the integrity of the busbar isolation and closing function;
  • the original 103 protocol test and control device is successively modified, and the 61,050 protocol measurement and control device is used to replace the original 103 protocol measurement and control device.
  • the modified 61850 protocol measurement and control device is connected to the 61850 protocol network;
  • the "side switch” measurement and control device communicates with the modified busbar measurement and control device through the 61850 protocol network to obtain the busbar ground knife information from the busbar measurement and control to ensure the integrity of the associated lockout logic;
  • the "middle switch” measurement and control device and the “side switch” device communicate through the 61850 protocol network to obtain the associated knife gate signal to ensure the integrity of the interval interlocking logic;
  • the original 103 protocol bus measurement and control device is removed.
  • the "line string” refers to an interval in which the complete interval is composed of two lines and three switches in the 3/2 wiring mode.
  • the "line change string” refers to an interval in which the complete interval is composed of one line, one main transformer and three switches in the 3/2 wiring mode.
  • the spacer interlocking function refers to the safe electrical locking function of the operation layer of the spacer layer measuring and controlling device.
  • the station control layer logic blocking function refers to the safety logic blocking function of the monitoring system.
  • the "edge switch” refers to a circuit breaker connected to the busbar in the 3/2 wiring mode.
  • the "medium switch” refers to a circuit breaker that is not connected to the busbar in the 3/2 wiring mode. Compared with the prior art, the advantages of the present invention are -
  • the interval layer measurement and control device can realize perfect logic lockout, which helps the intelligent transformation of existing conventional substation to proceed smoothly.
  • FIG. 1 is a block diagram showing a transition method of a modification process of the present invention
  • FIG. 2 is a schematic structural diagram of a station control layer modification network according to the present invention.
  • Figure 3 is a schematic diagram of a primary system of a 500kV 3/2 wiring substation
  • FIG. 4 is a schematic view showing a modified embodiment of the busbar measuring and controlling device of the present invention.
  • FIG. 5 is a schematic diagram of a modified embodiment of the switch measurement and control device of the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
  • the transition method described in the technical solution includes device switching and functional replacement of a 103 protocol network and a 61850 protocol network, characterized in that the transition method includes at least the following steps -
  • interval interlocking interlock function associated with the busbar measurement and control device in the 61850 protocol intelligent station control layer network is suspended, and the logic locking function of the station control layer is used to ensure the integrity of the busbar isolation and closing function;
  • the original 103 protocol test and control device is successively modified, and the 61,050 protocol measurement and control device is used to replace the original 103 protocol measurement and control device.
  • the modified 61850 protocol measurement and control device is connected to the 61850 protocol network;
  • the "side switch” measurement and control device communicates with the modified busbar measurement and control device through the 61850 protocol network to obtain the information of the busbar cutter from the busbar measurement and control to ensure the integrity of the associated lockout logic;
  • the "middle switch” measurement and control device and the “side switch” device communicate through the 61850 protocol network to obtain the associated knife gate signal to ensure the integrity of the interval interlocking logic;
  • each measurement and control device is modified one by one and then connected to the intelligent station control layer network (ie, the 61850 protocol network). ).
  • the unmodified measurement and control device is connected to the 103 protocol communication network of the microcomputer monitoring system, and the modified measurement and control device is connected to the intelligently monitored IEC 61850 protocol network.
  • the network equipment of the protocol communication and the network equipment of the 61850 protocol communication are incapable of direct communication with each other due to the inconsistent communication protocols.
  • some monitoring and control devices associated with the interlocking cannot exchange data with each other. Therefore, the interval measurement and control device cannot be realized during the transformation process. Perfect logic blocking.
  • the biggest advantage of the 3/2 wiring method is: Two busbars or one of the circuit breakers are repaired (or faulty), and the external power supply lines corresponding to the circuit breaker are not powered off, thereby improving the reliability of the power supply.
  • the “line string” in the technical solution refers to an interval in which the complete interval is composed of two lines and three switches in the 3/2 wiring mode, as shown in FIG. 3 of the specification, 501 strings, 502 strings and 505 string; the "line change string” refers to the 3/2 wiring mode, a complete interval consists of one line, one main transformer and The interval formed by the three switches is 503 strings and 504 strings in Fig. 3 of the drawings.
  • edge switch refers to the circuit breaker connected to the busbar in the 3/2 wiring mode, such as 5011, 5013, 5021, 5023, etc. in FIG. 3 of the specification; the “middle switch” refers to 3 In the /2 wiring mode, the circuit breakers that are not connected to the busbars are 5012, 5022, 5032, etc. in Figure 3 of the attached drawings.
  • the communication board of the busbar equipment measurement and control device is first modified and the intelligent station control layer network is changed.
  • the specific steps are as follows - First, two sets of 61850 measurement and control devices are connected to the busbar measurement and control screen. It replaces the original 2 sets of busbar measurement and control devices, accesses the 61850 network, realizes the logic locking function of the busbar measurement and control, and is responsible for the remote operation of the busbar ground knife. Secondly, the original 2 sets of busbar measurement and control devices are not removed, and their remote control operation function is prohibited.
  • the grounding switch position signal of the busbar communicates with the adjacent side switch measurement and control device through the 103 protocol to ensure the perfect logic locking function of the original 103 network side switch interval layer.
  • the figure uses solid arrows to indicate the interlocking exchange information of the original 103 protocol network.
  • the numbers in the brackets in the box of the measurement and control equipment represent different protocols.
  • the switch monitoring and control device of the string or the line change string is successively modified according to the power outage plan, and the modified switch measurement and control device is connected to the 61850 network.
  • the side switch measurement and control device communicates with the modified busbar measurement and control device through the 61850 statute, and obtains the information of the busbar knives from the busbar measurement and control to ensure the integrity of the associated lockout logic; the middle switch measurement and control device and the side switchgear communicate through the 61850 stipulation. Obtaining the associated knife gate signal ensures the integrity of the bay interlock logic.
  • the figure uses solid arrows to indicate the interlocking exchange information of the original 103 protocol network; the dotted arrow indicates the interlocking exchange information of the 61850 protocol network, and the rest is the same as Figure 2.
  • the busbar interlocking layer interlocking function is suspended, and the logic locking function of the busbar isolation switch is realized by the station control layer logic locking function. After all the transformation is completed, the busbar spacing layer interlocking function is restored. Achieve the integrity of the full station interval cascading lock.
  • the invention provides a transition method for the transformation process of the intelligent transformation monitoring system of the conventional substation, Complementing the gaps in this technical field, it ensures that in the process of intelligent transformation of conventional substation, the unmodified monitoring system part and the completed monitoring system all have complete interval interlocking locking logic, which is intelligent in the existing conventional substation. During the transformation process, the integrity of the monitoring system and the continuous and safe operation of the substation are guaranteed.
  • the invention can be widely used in the field of intelligent transformation of conventional substations.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

L'invention concerne un procédé de transition pour un processus de modification d'un système de système de surveillance pendant une modification intelligente d'un poste électrique classique. Le procédé consiste : à modifier en premier un dispositif de mesure et de commande de protocole 61850 de bus, à remplacer un dispositif de mesure et de commande de bus original, et à accéder un réseau de niveau de commande de poste intelligent de protocole 61850 de manière à obtenir une fonction de verrouillage de logique de couche d'espacement mesurée et commandée par le bus et responsable d'un fonctionnement par commande à distance d'un interrupteur à couteau de mise à la terre du bus; à ne pas démonter le dispositif de mesure et de commande de bus original, à empêcher une fonction de fonctionnement par commande à distance de ce dernier, et à garantir l'amélioration de la fonction de verrouillage logique de couche d'espacement d'un commutateur original côté réseau de protocole 103; à suspendre la fonction de verrouillage de couche d'espacement associée au dispositif de mesure et de commande de bus dans le réseau de niveau de commande de poste intelligent de protocole 61850, et à garantir l'intégrité d'une fonction de verrouillage de commutateur de déconnexion de bus au moyen d'une fonction de verrouillage logique du niveau de commande de poste; et à modifier les dispositifs de mesure et de commande de protocole 103 originaux de manière successive en fonction des chaînes sur la base d'un plan de coupure de courant, à récupérer la fonction de verrouillage de couche d'espacement de bus du réseau de niveau de commande de poste intelligent de protocole 61850 une fois la modification entièrement terminée, à obtenir l'intégrité du verrouillage de couche d'espacement de l'ensemble du poste, et à démonter les dispositifs de mesure et de commande du bus de protocole 103 originaux. Le procédé peut être largement utilisé dans le domaine de la modification intelligente de postes électriques classiques.
PCT/CN2012/084624 2012-10-19 2012-11-15 Procédé de transition pour processus de modification de système de surveillance pendant la modification intelligente d'un poste électrique classique WO2014059721A1 (fr)

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Application Number Priority Date Filing Date Title
CN201210403250.0 2012-10-19
CN201210403250.0A CN102983627B (zh) 2012-10-19 2012-10-19 常规变电站进行智能化改造监控系统改造过程的过渡方法

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CN103346496B (zh) * 2013-07-03 2016-04-06 中国电力工程顾问集团东北电力设计院有限公司 变电站智能化改造双母线保护不停电过渡方法
CN103746304B (zh) * 2013-12-25 2016-03-02 长园深瑞继保自动化有限公司 智能化变电站的改造方法
CN105914890B (zh) * 2016-06-07 2018-11-13 国家电网公司 一种变电站自动化控制系统
CN107248739B (zh) * 2017-06-12 2019-11-08 广东电网有限责任公司电力调度控制中心 一种配电网中常规变电站升级为智能变电站的优化方法
CN112465295A (zh) * 2020-10-27 2021-03-09 深圳供电局有限公司 电网中综自系统的改造方法和计算机可读存储介质

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