CN104319887A - Optical fiber chain scission anomaly judgment method for intelligent transformer substation - Google Patents

Optical fiber chain scission anomaly judgment method for intelligent transformer substation Download PDF

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CN104319887A
CN104319887A CN201410580309.2A CN201410580309A CN104319887A CN 104319887 A CN104319887 A CN 104319887A CN 201410580309 A CN201410580309 A CN 201410580309A CN 104319887 A CN104319887 A CN 104319887A
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interval
links
bus
substation
merging unit
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CN104319887B (en
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毕会静
田青
张红艳
白廷玉
纪璐
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State Grid Corp of China SGCC
Training Center of State Grid Hebei Electric Power Co Ltd
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Training Center of State Grid Hebei Electric Power Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/40Display of information, e.g. of data or controls

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Abstract

本发明涉及智能变电站数据交换网络领域,具体涉及一种智能变电站光纤断链异常判定方法。智能变电站在线分析决策系统已在现有智能变电站中推广使用,但现有的智能变电站在线分析决策系统尚未将智能变电站的通信网络拓扑引入其中,这就为智能变电站光纤断链故障的识别和分析造成了困难。本发明根据国家电网公司智能变电站相关技术规范并结合工程实际,设计智能变电站网络拓扑图,研发智能变电站单间隔动态可视化网络拓扑平台,对智能变电站的各智能电子设备之间的通信方式及数据传输内容进行动态可视化仿真。本发明设计简洁,易于实施,与现有的国内外智能变电站和智能变电站在线分析决策系统均具有良好的适配性,具有广阔的应用和推广前景。

The invention relates to the field of intelligent substation data exchange network, in particular to a method for judging the abnormality of optical fiber link disconnection in the intelligent substation. The smart substation online analysis and decision-making system has been popularized and used in the existing smart substation, but the existing smart substation online analysis and decision-making system has not yet introduced the communication network topology of the smart substation, which is the key to the identification and analysis of the fault of the fiber optic link in the smart substation. caused difficulties. According to the relevant technical specifications of the State Grid Corporation's smart substation and combined with engineering practice, the present invention designs the network topology diagram of the smart substation, develops a single-interval dynamic visualization network topology platform for the smart substation, and controls the communication methods and data transmission between smart electronic devices in the smart substation. The content is dynamically visualized and simulated. The invention is simple in design and easy to implement, has good compatibility with existing domestic and foreign intelligent substations and on-line analysis and decision-making systems for intelligent substations, and has broad application and promotion prospects.

Description

一种智能变电站光纤断链异常判定方法A method for judging the abnormality of optical fiber disconnection in smart substations

技术领域 technical field

本发明涉及智能变电站的数据交换网络领域,具体涉及一种智能变电站光纤断链异常判定方法。  The invention relates to the field of data exchange networks of intelligent substations, in particular to a method for judging abnormality of optical fiber link disconnection in intelligent substations. the

背景技术 Background technique

按照国家电网公司对今后我国电力建设和发展的总体布局及要求,智能变电站将是未来变电站新的发展方向。智能变电站最大的特点便是一次设备智能化、二次设备网络化及其高级应用。二次设备网络化即基于IEC61850网络通信技术的变电站间隔层之间及间隔层与过程层之间的光纤网络通信。借助该技术,智能变电站能够实现信息高度共享。网络拓扑是智能变电站网络通信的核心。目前,智能变电站在线分析决策系统已在现有智能变电站中推广使用,但现有的智能变电站在线分析决策系统尚未将智能变电站的通信网络拓扑引入其中,这就为智能变电站光纤断链故障的识别和分析造成了困难。  According to the overall layout and requirements of the State Grid Corporation of China for the future construction and development of electric power in my country, smart substations will be a new development direction for future substations. The biggest feature of the smart substation is the intelligence of the primary equipment, the networking of the secondary equipment and its advanced applications. Secondary equipment networking refers to optical fiber network communication between substation bay layers and between bay layer and process layer based on IEC61850 network communication technology. With the help of this technology, smart substations can achieve a high degree of information sharing. Network topology is the core of smart substation network communication. At present, the online analysis and decision-making system of smart substations has been promoted and used in existing smart substations, but the existing online analysis and decision-making system of smart substations has not yet introduced the communication network topology of smart substations. and analysis posed difficulties. the

发明内容 Contents of the invention

针对现有技术对智能变电站光纤断链故障识别和分析存在困难的不足,本发明提供了一种智能变电站光纤断链异常判定方法,根据智能变电站在线分析决策系统提示的有关光纤通信的故障描述,能够快速识别具体出现断链异常的光纤。 Aiming at the disadvantages of the prior art that it is difficult to identify and analyze the faults of optical fiber disconnection in smart substations, the present invention provides a method for judging the abnormality of optical fiber disconnection in smart substations. It can quickly identify the optical fiber that has an abnormal link break.

本发明的技术方案为: Technical scheme of the present invention is:

一种智能变电站光纤断链异常判定方法,其特征在于包括以下步骤: A method for judging abnormality of optical fiber link disconnection in a smart substation, characterized in that it includes the following steps:

(a)建立智能变电站单间隔动态可视化网络拓扑平台; (a) Establish a single-bay dynamic visualization network topology platform for smart substations;

(a-1)以智能变电站的后台监控服务器、合并单元、智能终端、测控装置、保护装置、录波装置和交换机为逻辑节点,以采样通信网络、面向通用对象的变电站事件通信网络和制作业报文通信网络的连接关系为逻辑支路绘制智能变电站通信网络拓扑图; (a-1) With the background monitoring server, merging unit, intelligent terminal, measurement and control device, protection device, wave recording device and switch of the smart substation as logical nodes, the sampling communication network, general object-oriented substation event communication network and production industry The connection relationship of the message communication network draws the topology diagram of the smart substation communication network for the logical branch;

其中,采样通信网络,简称SV网络,能够按照规定的采样率对输入进行采样;面向通用对象的变电站事件通信网络,简称GOOSE网络,用于不同制作商的设备之间自由交换信息,在数字化变电站中该网络用来传输跳闸信号、闭锁信号等,具有报文传输快速、可靠的特点;制作业报文通信网络,简称MMS网络,主要用于工业领域的信息通信; Among them, the sampling communication network, referred to as the SV network, can sample the input according to the specified sampling rate; the general object-oriented substation event communication network, referred to as the GOOSE network, is used for free exchange of information between devices of different manufacturers, and in the digital substation Among them, the network is used to transmit tripping signals, blocking signals, etc., and has the characteristics of fast and reliable message transmission; the manufacturing industry message communication network, referred to as the MMS network, is mainly used for information communication in the industrial field;

(a-2)利用Flash软件,根据步骤(a)中网络拓扑图制作智能变电站单间隔动态可视化网络拓扑平台,智能变电站单间隔动态可视化网络拓扑平台能够将与输入的通信故障信号相关的通信线路区别显示; (a-2) Use Flash software to create a single-bay dynamic visualization network topology platform for smart substations according to the network topology diagram in step (a). Distinguish display;

    (b)判定智能变电站发生光纤断链异常的故障线路; (b) Determine the faulty line of the smart substation where the abnormal fiber link is broken;

    (b-1)将智能变电站在线分析决策系统显示的通信故障信号输入步骤(a-2)智能变电站单间隔动态可视化网络拓扑平台,得到光纤断链疑似故障线路; (b-1) Input the communication fault signal displayed by the online analysis and decision-making system of the smart substation into step (a-2) the single-interval dynamic visualization network topology platform of the smart substation, and obtain the suspected faulty line of the optical fiber broken link;

    (b-2)人工逐一排查步骤(b-1)疑似故障线路直至确定智能变电站发生光纤断链异常的故障线路。 (b-2) Manually check step (b-1) suspected faulty lines one by one until the faulty line of the smart substation with abnormal optical fiber disconnection is determined.

    具体的,步骤(a-1)中合并单元包括母线合并单元和本间隔合并单元,智能终端包括本间隔智能终端、                                               母电压互感器智能终端、母电压互感器智能终端和母联智能终端,测控装置包括电能表、本间隔保护测控机和公共测控机,保护装置包括母线保护机,录波装置包括故障录波器,交换机包括站控层交换机、全站公用交换机、过程层公用交换机、母联间隔交换机和本间隔交换机。其中,母电压互感器智能终端简称 母PT智能终端,母电压互感器智能终端简称母PT智能终端。 Specifically, the merging unit in step (a-1) includes the bus merging unit and the bay merging unit, and the smart terminal includes the smart terminal of the bay, Mother voltage transformer intelligent terminal, Bus voltage transformer intelligent terminal and bus tie intelligent terminal, measurement and control devices include electric energy meter, local interval protection measurement and control machine and public measurement and control machine, protection devices include busbar protection machine, wave recording device includes fault wave recorder, switch includes station control layer switch , the public exchange of the whole station, the public exchange of the process layer, the switch of the bus connection interval and the exchange of the interval. in, Mother voltage transformer intelligent terminal for short Mother PT intelligent terminal, Mother voltage transformer intelligent terminal for short The parent PT smart terminal.

    具体的,步骤(a-1)中网络拓扑图还包括母电压互感器、母电压互感器、线路电压互感器、线路电流互感器、设备本体和电缆网络。其中,母电压互感器简称母PT,母电压互感器简称母PT,线路电压互感器简称线路PT,线路电流互感器简称线路CT。 Specifically, the network topology map in step (a-1) also includes mother voltage transformer, Bus voltage transformer, line voltage transformer, line current transformer, equipment body and cable network. in, Mother voltage transformer for short mother PT, Mother voltage transformer for short Mother PT, the line voltage transformer is called line PT for short, and the line current transformer is called line CT for short.

    具体的,步骤(a-1)网络拓扑图中母PT和母PT分别经链路与母线合并单元单向连接;线路PT和线路CT分别经链路与本间隔合并单元单向连接;设备本体经2条反向链路与本间隔智能终端单向连接;母线合并单元、母线保护机、故障滤波器、本间隔交换机、母PT智能终端、母PT智能终端和母联间隔交换机分别经2条反向链路与过程层公用交换机单向连接;过程层公用交换机分别经2条反向链路与全站公用交换机和公共测控机单向连接;站控层交换机经链路分别与公共测控机、本间隔保护监控机和后台监控服务器双向连接; Specifically, step (a-1) in the network topology diagram parent PT and The main PT is connected to the bus merging unit in one direction through the link; the line PT and the line CT are connected to the merging unit in the bay through the link in one direction; the equipment body is connected to the intelligent terminal in the bay in one direction through two reverse links; Bus merging unit, bus protection machine, fault filter, local interval switch, parent PT intelligent terminal, The mother PT intelligent terminal and the bus coupler interval switch are connected to the public switch on the process layer through 2 reverse links respectively; ; The switch at the station control layer is bidirectionally connected to the public measurement and control machine, the local interval protection monitoring machine and the background monitoring server through links;

   母线保护机经链路分别与本间隔智能终端和母联智能终端单向连接;本间隔智能终端经2条反向链路与本间隔保护测控机单向连接;母联智能终端经2条反向链路与母联间隔交换机单向连接; The bus protection machine is connected to the intelligent terminal of the bay and the intelligent terminal of the bus tie through the link; the intelligent terminal of the bay is connected to the protection measurement and control machine of the bay through two reverse links; One-way connection between the link and the bus coupler switch;

母线合并单元经链路分别与本间隔合并单元、母线保护机和故障录波器单向连接;本间隔合并单元经链路分别与本间隔保护测控机、电能表和故障录波器单向连接; The bus merging unit is unidirectionally connected to the bay merging unit, bus protection machine and fault recorder via links; the bay merging unit is unidirectionally connected to the bay protection measurement and control machine, electric energy meter and fault recorder via links ;

    本间隔合并单元、本间隔保护测控机和本间隔智能终端分别经2条反向链路与本间隔交换机单向连接。 The merging unit of this bay, the protection measurement and control machine of this bay and the intelligent terminal of this bay are respectively connected to the switch of this bay via 2 reverse links in one direction.

本发明的有益效果:本发明根据国家电网公司智能变电站相关技术规范并结合工程实际,设计智能变电站网络拓扑图,研发智能变电站单间隔动态可视化网络拓扑平台,利用该网络拓扑平台对智能变电站的各智能电子设备之间的通信方式及数据传输内容进行动态可视化仿真。使用时,向该网络拓扑平台输入通信故障信号,该网络拓扑平台自动显示相关的通信线路,实现了智能变电站光纤断链异常的可视化,极大地方便了操作人员工作,对今后智能变电站在线分析决策系统的进一步开发具有重大意义。本发明设计简洁,易于实施,与现有的国内外智能变电站和智能变电站在线分析决策系统均具有良好的适配性,具有广阔的应用和推广前景。 Beneficial effects of the present invention: According to the relevant technical specifications of the State Grid Corporation of China's smart substation and combined with engineering practice, the present invention designs the network topology diagram of the smart substation, develops a single-interval dynamic visualization network topology platform for the smart substation, and utilizes the network topology platform to monitor each of the smart substations. The communication method and data transmission content between intelligent electronic devices are dynamically visualized and simulated. When in use, input a communication fault signal to the network topology platform, and the network topology platform will automatically display the relevant communication lines, realizing the visualization of the abnormality of the fiber optic link disconnection in the smart substation, which greatly facilitates the work of the operator and will help the online analysis and decision-making of the smart substation in the future The further development of the system is of great significance. The invention is simple in design and easy to implement, has good compatibility with existing domestic and foreign intelligent substations and on-line analysis and decision-making systems for intelligent substations, and has broad application and promotion prospects.

附图说明 Description of drawings

图1为本发明的智能变电站通信网络拓扑图。 FIG. 1 is a topological diagram of a communication network of a smart substation according to the present invention.

其中,链路1、2、3为MMS网络,链路30、31、32、33、34、35、36为SV网络,链路4、5、6、7、8、9、10、13、18、19、20、21、22、23、24、25、26、27、28、29、37、38、39、40、41、42、43、44、45和46为GOOSE网络,链路11、12、14、15、16和17为电缆网络。 Among them, links 1, 2, and 3 are MMS networks, links 30, 31, 32, 33, 34, 35, and 36 are SV networks, and links 4, 5, 6, 7, 8, 9, 10, 13, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 37, 38, 39, 40, 41, 42, 43, 44, 45 and 46 are GOOSE networks, link 11 , 12, 14, 15, 16 and 17 are cable networks.

具体实施方式 Detailed ways

下面结合附图对本发明作进一步说明。 The present invention will be further described below in conjunction with accompanying drawing.

    参照图1,设计并建立本发明的智能变电站通信网络拓扑图。在该网络拓扑图中,母PT和母PT 分别经链路17、16与母线合并单元单向连接;线路PT和线路CT 分别经链路15、14与本间隔合并单元单向连接;设备本体经链路11、12与本间隔智能终端单向连接;母线合并单元经链路28、37,母线保护机经链路27、26,故障滤波器经链路25、38,本间隔交换机经链路21、22,母PT智能终端经链路42、8,母PT智能终端经链路41、7,母联间隔交换机经链路45、5分别与过程层公用交换机单向连接;过程层公用交换机分别经链路9、10和39、4与全站公用交换机和公共测控机单向连接;站控层交换机经链路2、3和1分别与公共测控机、本间隔保护监控机和后台监控服务器双向连接。 Referring to Fig. 1, the communication network topology diagram of the intelligent substation of the present invention is designed and established. In this network topology diagram, parent PT and The bus PT is connected to the bus merging unit in one direction via links 17 and 16 respectively; the line PT and line CT are connected to the merging unit in this bay through links 15 and 14 respectively; the equipment body is connected to the intelligent The terminal is connected in one direction; the bus merging unit passes through links 28 and 37, the bus protection machine passes through links 27 and 26, the fault filter passes through links 25 and 38, and the switchboard of this interval passes through links 21 and 22. The parent PT intelligent terminal via links 42 and 8, The parent PT intelligent terminal is unidirectionally connected to the process-layer public switch through links 41 and 7, and the bus-connection interval switch is respectively connected to the process layer public switch through links 45 and 5; The switch is connected to the public measurement and control machine in one direction; the station control layer switch is connected to the public measurement and control machine, the protection monitoring machine of this interval and the background monitoring server in two directions through links 2, 3 and 1 respectively.

   母线保护机经链路13和40分别与本间隔智能终端和母联智能终端单向连接;本间隔智能终端经链路46、29与本间隔保护测控机单向连接;母联智能终端经链路44、6与母联间隔交换机单向连接。 The bus protection machine is connected to the intelligent terminal of the bay and the intelligent terminal of the bus tie through links 13 and 40 respectively; Roads 44 and 6 are unidirectionally connected to the bus tie interval switch.

母线合并单元经链路34、35和36分别与本间隔合并单元、母线保护机和故障录波器单向连接;本间隔合并单元经链路30、31和32分别与本间隔保护测控机、电能表和故障录波器单向连接。 The bus merging unit is unidirectionally connected to the bay merging unit, bus protection machine and fault recorder via links 34, 35 and 36; the bay merging unit is respectively connected to the bay protection measurement and control machine, The electric energy meter and the fault recorder are connected in one direction.

本间隔合并单元经链路23、24, 本间隔保护测控机经链路19、20,本间隔智能终端经链路43、18分别与本间隔交换机单向连接。 The merging unit of this interval is via links 23 and 24, the protection and control machine of this interval is via links 19 and 20, and the intelligent terminal of this interval is connected to the switchboard of this interval via links 43 and 18 respectively.

本实施例的智能变电站通信网络拓扑图中,链路1、2、3为MMS网络,链路30、31、32、33、34、35、36为SV网络,链路4、5、6、7、8、9、10、13、18、19、20、21、22、23、24、25、26、27、28、29、37、38、39、40、41、42、43、44、45和46为GOOSE网络,链路11、12、14、15、16和17为电缆网络。 In the smart substation communication network topology diagram of this embodiment, links 1, 2, and 3 are MMS networks, links 30, 31, 32, 33, 34, 35, and 36 are SV networks, and links 4, 5, 6, 7, 8, 9, 10, 13, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 37, 38, 39, 40, 41, 42, 43, 44, 45 and 46 are GOOSE networks, and links 11, 12, 14, 15, 16 and 17 are cable networks.

本实施例中,智能变电站光纤断链异常分析过程为: In this embodiment, the abnormal analysis process of optical fiber link disconnection in the smart substation is as follows:

1、设计并建立本智能变电站通信网络拓扑图。 1. Design and establish the communication network topology diagram of the smart substation.

2、利用Flash软件,根据网络拓扑图制作智能变电站单间隔动态可视化网络拓扑平台;该智能变电站单间隔动态可视化网络拓扑平台能够根据输入的通信故障信号,将与通信故障信号相关的通信线路区别显示。 2. Use Flash software to create a single-interval dynamic visualization network topology platform for smart substations according to the network topology map; the single-interval dynamic visualization network topology platform for smart substations can distinguish communication lines related to communication failure signals according to the input communication failure signals .

3、智能变电站发生通信异常情况时,将智能变电站在线分析决策系统显示的通信故障信号输入智能变电站单间隔动态可视化网络拓扑平台,得到光纤断链疑似故障线路。 3. When abnormal communication occurs in the smart substation, the communication fault signal displayed by the online analysis and decision-making system of the smart substation is input into the single-interval dynamic visualization network topology platform of the smart substation, and the suspected faulty line of the fiber link is obtained.

4、人工逐一排查疑似故障线路,直至确定实际故障线路。 4. Manually check the suspected faulty lines one by one until the actual faulty line is determined.

本实施例中,智能变电站为建在河北邯郸的220kV双塔智能变电站,其使用的智能变电站在线分析决策系统为长园深瑞继保公司研发的PRS-7000型系统。 In this embodiment, the smart substation is a 220kV twin-tower smart substation built in Handan, Hebei, and the smart substation online analysis and decision-making system used is the PRS-7000 system developed by Changyuan Shenrui Jibao Company.

本发明中主要创新点在于设计并建立本智能变电站通信网络拓扑图,根据国家电网公司智能变电站相关技术规范并结合实际工程情况,绘制智能变电站网络拓扑图,根据现有的智能变电站在线分析决策系统提示的通信故障信号,结合网络拓扑图即可得到光纤断链疑似故障线路。例如,本实施例中智能变电站在线分析决策系统显示“智能终端收保护测控装置GOOSE断链(组网)”信息,利用智能变电站网络拓扑图可以确定链路19、43为疑似故障线路,工人排查GOOSE网络的线路19和43,确定实际故障线路。 The main innovation of the present invention lies in the design and establishment of the communication network topology diagram of the smart substation. According to the relevant technical specifications of the smart substation of the State Grid Corporation of China and in combination with the actual engineering situation, the network topology diagram of the smart substation is drawn. According to the existing online analysis and decision-making system of the smart substation The suggested communication fault signal can be combined with the network topology diagram to obtain the suspected faulty line of the optical fiber broken link. For example, in this embodiment, the intelligent substation online analysis and decision-making system displays the information of "smart terminal receiving, protection, measurement and control device GOOSE disconnection (network)" information, and the intelligent substation network topology map can be used to determine that links 19 and 43 are suspected faulty lines, and workers can check Lines 19 and 43 of the GOOSE network to determine the actual fault line.

需要说明的是,根据网络拓扑图利用Flash软件制作网络拓扑图制作智能变电站单间隔动态可视化网络拓扑平台等技术为本领域的公知常识,即使本发明未进行详细说明,本领域技术人员也应当清楚以上步骤。 It should be noted that it is common knowledge in this field to use Flash software to make a network topology map and create a smart substation single-bay dynamic visualization network topology platform based on the network topology map. above steps.

    以上所述实施方式仅为本发明的优选实施例,而并非本发明可行实施的穷举。对于本领域一般技术人员而言,在不背离本发明原理和精神的前提下对其所作出的任何显而易见的改动,都应当被认为包含在本发明的权利要求保护范围之内。  The implementations described above are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention. the

Claims (1)

1. An intelligent substation optical fiber broken link abnormity judgment method is characterized by comprising the following steps:
(a) establishing an intelligent substation single-interval dynamic visual network topology platform;
(a-1) taking a background monitoring server, a merging unit, an intelligent terminal, a measurement and control device, a protection device, a wave recording device and a switch of an intelligent substation as logic nodes, and drawing a communication network topological graph of the intelligent substation as a logic branch by taking the connection relation of an SV network, a GOOSE network and an MMS network;
(a-2) manufacturing an intelligent substation single-interval dynamic visual network topology platform according to the network topology map in the step (a-1) by using Flash software, wherein the intelligent substation single-interval dynamic visual network topology platform can be used for differentially displaying communication lines related to input communication fault signals;
(b) judging a fault line with abnormal optical fiber chain breakage of the intelligent substation;
(b-1) inputting a communication fault signal displayed by an online analysis decision system of the intelligent substation into the single-interval dynamic visual network topology platform of the intelligent substation in the step (a-2) to obtain an optical fiber broken link suspected fault line;
(b-2) manually checking the suspected fault lines in the step (b-1) one by one until the fault line with optical fiber chain breakage abnormity of the intelligent substation is determined;
the merging unit comprises a bus merging unit and a local interval merging unit, and the intelligent terminal comprises a local interval intelligent terminal,A mother PT intelligent terminal,The monitoring device comprises an electric energy meter, a local interval protection monitoring machine and a public monitoring machine, the protection device comprises a bus protector, the wave recording device comprises a fault wave recorder, and the switch comprises a station control layer switch, a total station public switch, a process layer public switch, a bus coupler interval switch and a local interval switch;
the network topology further includesA mother PT,A mother PT, a line CT, an equipment body and a cable network;
step (a-1) in the network topology mapMother PT andthe bus PT is connected with the bus merging unit in a one-way mode through links (17) and (16) respectively; the line PT and the line CT are respectively connected with the interval merging unit in a unidirectional way through links (15) and (14); the equipment body is connected with the interval intelligent terminal in a one-way mode through links (11) and (12); the bus merging unit is connected with the bus protector through the links (27) and (26), the fault filter is connected with the links (25) and (38), the interval exchanger is connected with the bus merging unit through the links (28) and (37),the mother PT intelligent terminal is connected with the network through the links (42), (8),the mother PT intelligent terminal is respectively connected with the process layer public switch in a one-way mode through links (41) and (7) and the mother connection interval switch through links (45) and (5); the process layer public switch is unidirectionally connected with the total station public switch and the public measurement and control machine through links (9), (10), and (39), (4) respectively; the station control layer switch is respectively in bidirectional connection with the public monitoring machine, the interval protection monitoring machine and the background monitoring server through links (2), (3) and (1);
the bus protector is respectively connected with the interval intelligent terminal and the bus-coupled intelligent terminal in a one-way mode through links (13) and (40); the interval intelligent terminal is connected with the interval protection measuring and controlling machine in a one-way mode through links (46) and (29); the bus-coupled intelligent terminal is connected with the bus-coupled interval switch in a one-way mode through links (44) and (6);
the bus merging unit is respectively connected with the interval merging unit, the bus protector and the fault recorder in a unidirectional way through links (34), (35) and (36); the interval merging unit is respectively connected with the interval protection measuring and controlling machine, the electric energy meter and the fault recorder in a one-way mode through links (30), (31) and (32);
the interval merging unit is connected with the interval exchanger in a unidirectional way through links (23) and (24), the interval protection measuring and controlling machine is connected with the interval exchanger in a unidirectional way through links (19) and (20), and the interval intelligent terminal is connected with the interval exchanger in a unidirectional way through links (43) and (18).
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