WO2014201989A1 - Distributed intelligence feeder line automated control method - Google Patents

Distributed intelligence feeder line automated control method Download PDF

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Publication number
WO2014201989A1
WO2014201989A1 PCT/CN2014/080041 CN2014080041W WO2014201989A1 WO 2014201989 A1 WO2014201989 A1 WO 2014201989A1 CN 2014080041 W CN2014080041 W CN 2014080041W WO 2014201989 A1 WO2014201989 A1 WO 2014201989A1
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WO
WIPO (PCT)
Prior art keywords
switch
ftu
fault
adjacent
feeder line
Prior art date
Application number
PCT/CN2014/080041
Other languages
French (fr)
Chinese (zh)
Inventor
李天友
吴文宣
陈彬
徐丙垠
王敬华
Original Assignee
国家电网公司
国网福建省电力有限公司
国网福建省电力有限公司电力科学研究院
山东理工大学
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Application filed by 国家电网公司, 国网福建省电力有限公司, 国网福建省电力有限公司电力科学研究院, 山东理工大学 filed Critical 国家电网公司
Publication of WO2014201989A1 publication Critical patent/WO2014201989A1/en

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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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
    • H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
    • 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
    • H02J13/00002—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 characterised by monitoring
    • 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
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • H02J3/0012—Contingency detection
    • 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
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
    • 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
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

Definitions

  • the invention relates to a general control method for fault location, isolation and power restoration of a medium voltage distribution network feeder based on a peer-to-peer communication network and a distributed intelligent, in particular to a distributed intelligent feeder automatic control method.
  • Feeder Automation is mainly used to realize fault location, isolation and power restoration of distribution network lines, which can reduce the time of power failure, reduce the power outage range, and improve power supply reliability.
  • FA mainly adopts centralized control mode, relying on the main station to collect and process the fault information sent by the feeder terminal (FTU) for fault location, and the remote segment switch realizes fault isolation and network reconstruction, and the power recovery time of the non-faulty section is reached. Minute level.
  • FTU feeder terminal
  • the FTU installed at the feeder switch exchanges fault information and control information through peer-to-peer communication networks to locate faults, isolate and network. The operation reduces the power outage time of the non-faulty section to the second level.
  • the Intel l iTEAM FA system developed by American S&C Company proposes an overhead line fault recovery and reconstruction scheme based on distributed intelligent control. According to the feeder topology, the segment switches are grouped into several control groups.
  • the control team selects a coach to collect and process the failure information of the team member to achieve fault self-healing control, but due to the segment-by-segment recovery strategy, the power recovery speed is slower.
  • the prior art also proposes to use the wireless communication technology to connect the FTU data to the wireless peer-to-peer communication network through the serial port to realize the distributed intelligent FA, but the entire power restoration process also takes more than 10s.
  • Others there are proposed network-based distribution network protection systems based on CAN bus peer-to-peer communication, and a fast self-healing scheme for high-speed network peer-to-peer communication methods using generic object-oriented substation events (GOOSE), which are for the line
  • GOOSE generic object-oriented substation events
  • An object of the present invention is to provide a distributed intelligent feeder automatic control method that is effective, reliable, and capable of greatly shortening the power supply recovery process according to the deficiencies of the prior art.
  • the distributed intelligent feeder automatic control method the main point is that the following steps are included:
  • a distributed intelligent FA system which has a plurality of feeder terminals FTU, and each feeder terminal FTU is linked and monitored Control one or more switches;
  • Each FTU is numbered and represented by letters, in order of 1, 2, . . . N, N is the number of FTUs on the feeder; a switch configuration information table is created for each FTU, for each FTU monitored The switch is numbered, and then the type of the monitored switch and its adjacent switches are indicated by letters different from the FTU mark.
  • the switch type is divided into M-side power switch, N-side power switch, trunk segment switch, and branch line intermediate switch.
  • the branch end switch and the tie switch are numbered 1-6 in sequence; the information of the adjacent switch includes the FTU number of the adjacent switch, and its number in the FTU;
  • the acquisition FTU monitors the fault according to the feedback of the locally monitored switch and the adjacent switch, and performs fault location, isolation fault and power restoration operation according to the information feedback.
  • the method of the present invention has strong versatility and is suitable for overhead lines, cables and overhead lines/ Cable hybrid line; FTU can complete fault location, isolation and power recovery operation according to the local monitoring of the switch and the measurement information of the adjacent switch.
  • the setting is simple. The field test and application results show that the system can complete the feeder fault location and isolation operation within 600ms after the protection action trips, and realize the power restoration operation of the non-faulty section within 1.5s.
  • 1 is an operation flow diagram for performing switch fault location and isolation by using the distributed intelligent feeder automatic control method
  • FIG. 2 is a flow chart of switching power supply recovery operation using the distributed intelligent feeder automatic control method
  • FIG. 3 is a schematic diagram of an overhead line distributed intelligent FA system based on an intelligent feeder automatic control method
  • FIG. 4 is based on intelligent feeder automation Schematic diagram of distributed intelligent FA system for cable lines of control method
  • FIG. 5 is a schematic diagram of an overhead line/cable hybrid line FA system based on an intelligent feeder automatic control method
  • FIG. 6 is a schematic diagram of a field cable ring network power supply line based on an intelligent feeder automatic control method.
  • the technical solution adopted by the present invention to solve the technical problem is:
  • the FTU controls the monitored switch, completes the fault location, isolation and power restoration operation, and needs to establish a switch configuration information table of the FTU.
  • the FTU switch configuration information table is implemented by the following methods: First, all FTUs on the feeder are numbered, denoted by a, in order, 1, 2, ... N, N is the number of FTUs on the feeder. Each FTU may only monitor one switch (circuit breaker or on-column switch) or it may monitor multiple switches of the same ring network cabinet. Establish a switch configuration information table for each FTU, number all the switches monitored by the FTU, and then indicate the type of the monitored switch (indicated by b) and its adjacent switches.
  • the switch type is divided into M-side power switches, N End power switch, trunk segment switch, branch line intermediate switch, branch line end switch and tie switch, numbered 1-6, as shown in Table 1; the information of the adjacent switch includes the FTU number of the adjacent switch, and its in the FTU The number.
  • the fault information includes the switch overcurrent information, the overcurrent information of the adjacent switch and the loss of voltage information on both sides of the tie switch, as shown in Table 2.
  • the fault switch and its adjacent switch are monitored by the same FTU, all fault information is obtained by local FTU monitoring; when the fault switch and the adjacent switch are monitored by different FTUs, the overcurrent information of the adjacent switch is passed through the peer-to-peer communication network. Obtained in the distance.
  • the switch detects an overcurrent
  • the specific process is: When the switch detects an overcurrent, it determines whether the protection is active.
  • the switch type is 1 (M-side power switch), 2 (N-side power switch) or 6 (contact switch). If yes, further determine whether the reclose lock information is received until the coincidence The gate was successful. If the switch is a b6 joint switch, it is necessary to judge whether each switch is overcurrent or pressurized, and reclose according to the judgment. According to the above method, several different systems can be constructed in practical applications.
  • the FA system was developed in the field trial of the cable ring network power supply line.
  • the line consists of four ring network cabinets, which are respectively Huxi interchange rings.
  • Net cabinet, Huxi Bay #1 ring network cabinet, Huxi sewage ring network cabinet and Binnan sewage ring network cabinet, 901 switch of Huxi interchange ring network cabinet and 901 switch of Binnan sewage ring network cabinet are circuit breakers, the other switches are load
  • the switch, in which the 902 switch of the Huxi sewage ring network cabinet is in the open state during normal operation, is a tie switch.
  • a distributed intelligent terminal FTU is installed at each ring network cabinet on the cable line, and a switch configuration information table is established for each FTU and its monitored switch according to the method of the present invention, as shown in Table 3.
  • FTU1 is marked as al
  • 903 The load switch is the branch end switch b5.
  • FIG. 3 and Table 4 Distributed intelligent FA system for overhead lines. Assuming a permanent fault at point F, the substation exit breaker CB1 trips and fails to coincide, the FTU that detects the overcurrent phenomenon initiates the FA algorithm and exchanges fault detection information with the adjacent FTU. FTU2 at the upstream segment switch of the fault point detects the fault information, and the FTU3 at the downstream segment switch of the fault point does not detect the fault information, so it is determined that the fault is located between FTU2 and FTU3, and FTU2 and FTU3 respectively control S1 and S2 to trip. Isolating the fault, and then issuing a start to restore the power supply signal, FTU1 and FTU4 respectively control the closing of CB1 and S3 to restore the power supply of the non-faulty section.
  • FTU 5 5 S4 1 3 4 1 6 1 As shown in Figure 4 and Table 5: Cable line distributed intelligent FA system.
  • the system configuration is similar to the overhead line distributed intelligent FA system. The difference is that each FTU monitors multiple switches in the ring network cabinet.
  • the feeder fault points may be located between the ring network cabinets, the ring network cabinet bus or the ring network cabinet outlet. on.
  • the FTU control fault line is connected to the RMU1 and RMU2 line switches S12 S21 tripping isolation fault, then close the circuit breaker CB1 RMU3 contact switch S31 to restore RMU1 and RMU2
  • the FTU controls all the switches of the RMU2 (the incoming switch S21 S22 and the outgoing switch S23) to trip to isolate the fault, then close the circuit breaker CB1, restore the RMUl power supply, and the RMU2 is powered off for maintenance; If the F3 point on the RMU2 outgoing line fails, the FTU controls the outgoing switch S23 of the RMU2 to trip to isolate the fault, and then the circuit breaker CB1 is closed to restore the power supply of RMU1 and RMU2.

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

Abstract

A universal control method for medium-voltage distribution network feeder line fault localization, isolation, and power supply recovery, and based on peer-to-peer communications networks and distributed intelligence; performing classification and establishing a switch configuration information table according to a feeder line terminal and switch monitored by same; then, for different types of feeder line switch, designing distributed intelligence feeder line automated control processes and developing corresponding distributed intelligence feeder line automated systems.

Description

分布式智能馈线自动化控制方法 技术领域  Distributed intelligent feeder automatic control method
本发明涉及一种基于对等通信网络与分布式智能的中压配电网馈线故障定位、 隔离与供 电恢复的通用控制方法， 特别是一种分布式智能馈线自动化控制方法。  The invention relates to a general control method for fault location, isolation and power restoration of a medium voltage distribution network feeder based on a peer-to-peer communication network and a distributed intelligent, in particular to a distributed intelligent feeder automatic control method.
背景技术 Background technique
馈线自动化 （FA) 主要用于实现配网线路的故障定位、 隔离与供电恢复， 可以减少故障 停电时间， 缩小停电范围， 提高供电可靠性。 目前 FA 主要采用集中控制方式， 依靠主站采 集并处理馈线终端（FTU)送上来的故障信息进行故障定位， 遥控分段开关实现故障隔离与网 络重构， 其非故障区段的供电恢复时间达到分钟级。 随着通信与计算机控制技术的发展， 目 前已开发出基于分布式智能的 FA***， 安装在馈线开关处的 FTU通过对等通信网络相互交换 故障信息与控制信息， 进行故障定位、 隔离与网络重构操作， 使非故障区段的停电时间缩短 至秒级。 现有技术中， 美国 S&C公司开发的 Intel l iTEAM FA***， 提出了基于分布式智能控 制的架空线路故障恢复重构方案，根据馈线拓扑结构， 将分段开关分组成若干个控制小组 Feeder Automation (FA) is mainly used to realize fault location, isolation and power restoration of distribution network lines, which can reduce the time of power failure, reduce the power outage range, and improve power supply reliability. At present, FA mainly adopts centralized control mode, relying on the main station to collect and process the fault information sent by the feeder terminal (FTU) for fault location, and the remote segment switch realizes fault isolation and network reconstruction, and the power recovery time of the non-faulty section is reached. Minute level. With the development of communication and computer control technology, FA system based on distributed intelligence has been developed. The FTU installed at the feeder switch exchanges fault information and control information through peer-to-peer communication networks to locate faults, isolate and network. The operation reduces the power outage time of the non-faulty section to the second level. In the prior art, the Intel l iTEAM FA system developed by American S&C Company proposes an overhead line fault recovery and reconstruction scheme based on distributed intelligent control. According to the feeder topology, the segment switches are grouped into several control groups.
( team)， 控制小组中选择一个 coach负责收集并处理小组成员（team member)的故障信息， 实现故障自愈控制， 但是由于采用逐段恢复的策略， 供电恢复速度较慢。 另外， 现有技术中 还提出采用无线通信技术，将 FTU数据通过串行口接入无线对等通信网络实现分布式智能 FA, 然而整个供电恢复过程也需要 10s以上的时间。 其他的， 还有提出基于 CAN总线对等通信的 网络式配网保护***，以及提出利用通用面向对象变电站事件 （GOOSE) 的高速网络对等通信 方式的快速自愈方案， 这两种方法针对线路开关均为断路器的情况。 (team), the control team selects a coach to collect and process the failure information of the team member to achieve fault self-healing control, but due to the segment-by-segment recovery strategy, the power recovery speed is slower. In addition, the prior art also proposes to use the wireless communication technology to connect the FTU data to the wireless peer-to-peer communication network through the serial port to realize the distributed intelligent FA, but the entire power restoration process also takes more than 10s. Others, there are proposed network-based distribution network protection systems based on CAN bus peer-to-peer communication, and a fast self-healing scheme for high-speed network peer-to-peer communication methods using generic object-oriented substation events (GOOSE), which are for the line The switches are all cases of circuit breakers.
发明内容 Summary of the invention
本发明的目的在于根据现有技术的不足之处而提供一种有效、 可靠、 能够极大缩短供电 恢复过程的分布式智能馈线自动化控制方法。  SUMMARY OF THE INVENTION An object of the present invention is to provide a distributed intelligent feeder automatic control method that is effective, reliable, and capable of greatly shortening the power supply recovery process according to the deficiencies of the prior art.
本发明的目的是通过以下途径来实现的：  The object of the present invention is achieved by the following means:
分布式智能馈线自动化控制方法， 其要点在于， 包括如下步骤：  The distributed intelligent feeder automatic control method, the main point is that the following steps are included:
提供分布式智能 FA***， 其具有复数个馈线终端 FTU， 每个馈线终端 FTU均链接并监 控一个或者多个开关； A distributed intelligent FA system is provided, which has a plurality of feeder terminals FTU, and each feeder terminal FTU is linked and monitored Control one or more switches;
对每个 FTU进行编号， 用字母表示， 按顺序依次为 1， 2， . . . N, N为馈线上 FTU的个数； 为每一个 FTU建立开关配置信息表， 对每个 FTU监控的所有开关进行编号， 然后用区 别于 FTU标示的字母标示被监控开关的类型及其相邻开关的信息， 其中开关类型分为 M端 电源开关， N端电源开关， 干线分段开关， 支线中间开关， 支线末端开关和联络开关， 依次 编号为 1-6; 其邻近开关的信息包括邻近开关的 FTU号， 及其在 FTU中的编号；  Each FTU is numbered and represented by letters, in order of 1, 2, . . . N, N is the number of FTUs on the feeder; a switch configuration information table is created for each FTU, for each FTU monitored The switch is numbered, and then the type of the monitored switch and its adjacent switches are indicated by letters different from the FTU mark. The switch type is divided into M-side power switch, N-side power switch, trunk segment switch, and branch line intermediate switch. The branch end switch and the tie switch are numbered 1-6 in sequence; the information of the adjacent switch includes the FTU number of the adjacent switch, and its number in the FTU;
发生故障时， 根据上述 FTU的开关配置表， 采集 FTU根据本地所监控的开关及相邻开关 的测量信息， 根据信息反馈逐级进行监控， 完成故障定位、 隔离故障和供电恢复操作。  In the event of a fault, according to the above-mentioned FTU switch configuration table, the acquisition FTU monitors the fault according to the feedback of the locally monitored switch and the adjacent switch, and performs fault location, isolation fault and power restoration operation according to the information feedback.
与现有技术相比本发明的有益效果是：  The beneficial effects of the present invention compared to the prior art are:
通过分布式智能 FA通用控制方法， 能够在 1.5s内完成非故障区段的供电恢复， 能够显 著地减少故障停电时间； 本发明所述方法通用性强， 适用于架空线、 电缆及架空线 /电缆混合 线路； FTU根据本地所监控的开关及相邻开关的测量信息， 即可完成故障定位、 隔离与供电 恢复操作， 整定配置简单。 现场测试及应用结果表明， ***可以在保护动作跳闸后 600ms内 完成馈线故障定位、 隔离操作， 在 1. 5s内实现非故障区段的供电恢复操作。  Through the distributed intelligent FA universal control method, the power recovery of the non-faulty section can be completed within 1.5s, and the fault blackout time can be significantly reduced. The method of the present invention has strong versatility and is suitable for overhead lines, cables and overhead lines/ Cable hybrid line; FTU can complete fault location, isolation and power recovery operation according to the local monitoring of the switch and the measurement information of the adjacent switch. The setting is simple. The field test and application results show that the system can complete the feeder fault location and isolation operation within 600ms after the protection action trips, and realize the power restoration operation of the non-faulty section within 1.5s.
附图说明 DRAWINGS
附图 1为采用所述分布式智能馈线自动化控制方法进行开关故障定位、 隔离的操作流程 图；  1 is an operation flow diagram for performing switch fault location and isolation by using the distributed intelligent feeder automatic control method;
附图 2为采用所述分布式智能馈线自动化控制方法进行开关供电恢复操作流程图； 附图 3为基于智能馈线自动化控制方法的架空线路分布式智能 FA***示意图； 附图 4为基于智能馈线自动化控制方法的电缆线路分布式智能 FA统示意图；  2 is a flow chart of switching power supply recovery operation using the distributed intelligent feeder automatic control method; FIG. 3 is a schematic diagram of an overhead line distributed intelligent FA system based on an intelligent feeder automatic control method; FIG. 4 is based on intelligent feeder automation Schematic diagram of distributed intelligent FA system for cable lines of control method;
附图 5为基于智能馈线自动化控制方法的架空线 /电缆混合线路 FA***示意图； 附图 6为基于智能馈线自动化控制方法的现场电缆环网供电线路示意图。  FIG. 5 is a schematic diagram of an overhead line/cable hybrid line FA system based on an intelligent feeder automatic control method; FIG. 6 is a schematic diagram of a field cable ring network power supply line based on an intelligent feeder automatic control method.
下面结合附图对本发明做进一步阐述。  The invention will be further elucidated below with reference to the accompanying drawings.
具体实施方式 detailed description
本发明解决其技术问题所采用的技术方案是： 在分布式智能 FA***中， FTU控制被监 控的开关， 完成故障定位、 隔离与供电恢复操作， 需要建立 FTU的开关配置信息表。 FTU的开关配置信息表是通过如下方法实现的： 首先对馈线上的所有 FTU进行编号， 用 a表示， 按顺序依次为 1,2， ...N, N为馈线上 FTU的个数。 每个 FTU可能只监控一个开关 （断路器或者柱上开关）， 也可能监控同一环网柜的多个 开关。 给每一个 FTU建立开关配置信息表， 对 FTU监控的所有开关进行编号， 然后标示被 监控开关的类型 （用 b表示）及其相邻开关的信息， 其中开关类型分为 M端电源开关， N端 电源开关， 干线分段开关， 支线中间开关， 支线末端开关和联络开关， 依次编号为 1-6， 如表 1所示； 其邻近开关的信息包括邻近开关的 FTU号， 及其在 FTU中的编号。 The technical solution adopted by the present invention to solve the technical problem is: In the distributed intelligent FA system, the FTU controls the monitored switch, completes the fault location, isolation and power restoration operation, and needs to establish a switch configuration information table of the FTU. The FTU switch configuration information table is implemented by the following methods: First, all FTUs on the feeder are numbered, denoted by a, in order, 1, 2, ... N, N is the number of FTUs on the feeder. Each FTU may only monitor one switch (circuit breaker or on-column switch) or it may monitor multiple switches of the same ring network cabinet. Establish a switch configuration information table for each FTU, number all the switches monitored by the FTU, and then indicate the type of the monitored switch (indicated by b) and its adjacent switches. The switch type is divided into M-side power switches, N End power switch, trunk segment switch, branch line intermediate switch, branch line end switch and tie switch, numbered 1-6, as shown in Table 1; the information of the adjacent switch includes the FTU number of the adjacent switch, and its in the FTU The number.
类别 编号 类别 编号  Category Number Category Number
M端电源开关 1 支线中间开关 4  M terminal power switch 1 branch line intermediate switch 4
N端电源开关 2 支线末端开关 5 干线分段开关 3 联络开关 6  N-terminal power switch 2 branch end switch 5 trunk segment switch 3 contact switch 6
表 1 如图 1所示， 对于 FTU监控的馈线开关， 其故障信息包括开关过流信息， 邻侧开关的过 流信息及联络开关的两侧失压信息， 如表 2所示。 当故障开关与其邻侧开关被同一 FTU监控 时， 所有故障信息由当地 FTU监控获得； 当故障开关与邻侧开关被不同 FTU监控时， 其邻 侧的开关的过流信息通过对等通信网络由远方获得。  Table 1 As shown in Figure 1, for the feeder switch of FTU monitoring, the fault information includes the switch overcurrent information, the overcurrent information of the adjacent switch and the loss of voltage information on both sides of the tie switch, as shown in Table 2. When the fault switch and its adjacent switch are monitored by the same FTU, all fault information is obtained by local FTU monitoring; when the fault switch and the adjacent switch are monitored by different FTUs, the overcurrent information of the adjacent switch is passed through the peer-to-peer communication network. Obtained in the distance.
¾J 标示  3⁄4J mark
开关检测到过流  The switch detects an overcurrent
开关 M侧某一邻近开关过流 c2 a proximity switch overcurrent c 2 on the switch M side
开关 N侧某一邻近开关过流 c3 a neighboring switch overcurrent on the N side of the switch C 3
联络开关 M侧失压 c4 Contact switch M side loss of pressure c 4
联络开关 N侧失压 c5 Contact switch N side loss of pressure c 5
表 2 如图 1所示， cl=l表示开关检测到过流； c2=0表示开关 M侧邻近开关均无过流； c3=0 表示开关 N侧邻近开关均无过流， 具体流程是： 当开关检测到过流， 则判断保护是否动作， 如果保护有动作， 则进一步判断开关的类型： 判断开关类型是否为 1 (M端电源开关）， 如果 是， 则判断开关 N侧邻近开关是否均无过流 （c3=0)， 如果不是， 判断开关类型是否为 2 (N 端电源开关）， 如果是， 则判断开关 M侧邻近开关是否均无过流 （c2=0)， 依序判别后， 发送 相应的跳闸命令给相应开关， 最后实现故障隔离。 如图 2所示， c2=l : 开关 M侧邻近开关过流； c3=l : 开关 N侧邻近开关过流； c4=0: 联 络开关 M侧有压； c5=0: 联络开关 N侧有压。 当故障隔离成功后， 判断开关的类型是否为 1 (M端电源开关）、 2 (N端电源开关） 或者是 6 (联络开关）， 如果是， 进一步判断是否收到 重合闸闭锁信息， 直到重合闸成功。 如果开关为 b6联合开关， 则需要判断各个开关是否过流 或者有压， 并根据判断情况进行重合闸。 根据上述方法， 在实际应用中可以构建如下几种不 同的***。 Table 2 As shown in Figure 1, cl = l indicates that the switch detects overcurrent; c2 = 0 indicates that there is no overcurrent in the adjacent switch on the M side of the switch; c3 = 0 indicates that there is no overcurrent in the adjacent switch on the N side of the switch. The specific process is: When the switch detects an overcurrent, it determines whether the protection is active. If the protection has an action, further determine the type of the switch: Determine whether the switch type is 1 (M-side power switch), and if so, determine whether the adjacent switch on the N side of the switch is No overcurrent (c3=0), if not, determine whether the switch type is 2 (N-side power switch), if yes, determine whether there is no overcurrent in the adjacent switch on the switch M side (c2=0), after the sequence is determined , Send the corresponding trip command to the corresponding switch, and finally achieve fault isolation. As shown in Figure 2, c2=l : switch M side adjacent switch overcurrent; c3=l: switch N side adjacent switch overcurrent; c4=0 : joint There is pressure on the M side of the switch; c5=0: There is pressure on the N side of the contact switch. After the fault isolation is successful, determine whether the switch type is 1 (M-side power switch), 2 (N-side power switch) or 6 (contact switch). If yes, further determine whether the reclose lock information is received until the coincidence The gate was successful. If the switch is a b6 joint switch, it is necessary to judge whether each switch is overcurrent or pressurized, and reclose according to the judgment. According to the above method, several different systems can be constructed in practical applications.
如图 6所示： 在实际应用中， 利用分布式智能馈线自动化通用控制方法， 开发了一 FA ***在电缆环网供电线路现场试运行， 该线路包含 4个环网柜， 分别为湖西立交环网柜、 湖 西海湾 #1环网柜、 湖西污水环网柜以及滨南污水环网柜， 湖西立交环网柜的 901开关与滨南 污水环网柜的 901开关为断路器， 其余开关为负荷开关， 其中湖西污水环网柜的 902开关正 常运行时处于分闸状态，为联络开关。在电缆线路上的各环网柜处安装分布式智能终端 FTU， 进一步根据本发明所述方法对每个 FTU和其所监控的开关建立开关配置信息表如表 3， 如 FTU1标示为 al， 903负荷开关为支线末端开关 b5。  As shown in Figure 6: In the practical application, using the distributed intelligent feeder automatic control method, the FA system was developed in the field trial of the cable ring network power supply line. The line consists of four ring network cabinets, which are respectively Huxi interchange rings. Net cabinet, Huxi Bay #1 ring network cabinet, Huxi sewage ring network cabinet and Binnan sewage ring network cabinet, 901 switch of Huxi interchange ring network cabinet and 901 switch of Binnan sewage ring network cabinet are circuit breakers, the other switches are load The switch, in which the 902 switch of the Huxi sewage ring network cabinet is in the open state during normal operation, is a tie switch. A distributed intelligent terminal FTU is installed at each ring network cabinet on the cable line, and a switch configuration information table is established for each FTU and its monitored switch according to the method of the present invention, as shown in Table 3. For example, FTU1 is marked as al, 903 The load switch is the branch end switch b5.
表 3  table 3
M侧开关 N侧开关  M side switch N side switch
FTU FTU编号 被监控开关 开关编号 开关类型  FTU FTU number Monitored switch Switch number Switch type
FTU编号 开关编号 FTU编号 开关编号 FTU number Switch number FTU number Switch number
901 1 1 0 0 1 2， 3， 4， 5， 6 901 1 1 0 0 1 2, 3, 4, 5, 6
902 2 3 1 1， 3， 4， 5， 6 2 1 902 2 3 1 1, 3, 4, 5, 6 2 1
903 3 5 1 1, 2 0 0903 3 5 1 1, 2 0 0
FTU 1 1 FTU 1 1
904 4 5 1 1， 2 0 0  904 4 5 1 1, 2 0 0
905 5 5 1 1， 2 0 0 905 5 5 1 1, 2 0 0
906 6 5 1 1， 2 0 0 906 6 5 1 1, 2 0 0
901 1 3 1 2 2 2， 3, 4 901 1 3 1 2 2 2, 3, 4
903 2 3 2 1, 3, 4 3 1903 2 3 2 1, 3, 4 3 1
FTU 2 2 FTU 2 2
905 3 5 2 1, 2 0 0  905 3 5 2 1, 2 0 0
907 4 5 2 1, 2 0 0 907 4 5 2 1, 2 0 0
FTU 3 3 902 1 6 2 2 3 2， 3， 4， 5， 6 901 2 3 3 1， 3， 4， 5， 6 4 1 FTU 3 3 902 1 6 2 2 3 2, 3, 4, 5, 6 901 2 3 3 1, 3, 4, 5, 6 4 1
903 3 5 3 1, 2 0 0 903 3 5 3 1, 2 0 0
904 4 5 3 1, 2 0 0 904 4 5 3 1, 2 0 0
905 5 5 3 1, 2 0 0 905 5 5 3 1, 2 0 0
906 6 5 3 1, 2 0 0 906 6 5 3 1, 2 0 0
902 1 3 3 2 4 2， 3， 4， 5 902 1 3 3 2 4 2, 3, 4, 5
901 2 2 4 1， 3， 4， 5 0 0 901 2 2 4 1, 3, 4, 5 0 0
FTU 4 4 903 3 5 4 1, 2 0 0 FTU 4 4 903 3 5 4 1, 2 0 0
904 4 5 4 1, 2 0 0 904 4 5 4 1, 2 0 0
905 5 5 4 1, 2 0 0 905 5 5 4 1, 2 0 0
如图 3及表 4所示： 架空线路分布式智能 FA***。 假设 F点发生永久故障， 变电站出 口断路器 CB1跳闸并重合失败后， 检测到过流现象的 FTU启动 FA算法， 并与相邻 FTU交 换故障检测信息。 故障点上游分段开关处的 FTU2检测到故障信息， 而故障点下游分段开关 处的 FTU3未检测到故障信息， 因此判断出故障位于 FTU2与 FTU3之间， FTU2与 FTU3分 别控制 S1和 S2跳闸隔离故障， 然后发出启动恢复供电信号， FTU1与 FTU4分别控制 CB1 与 S3合闸， 恢复非故障区段供电。 As shown in Figure 3 and Table 4: Distributed intelligent FA system for overhead lines. Assuming a permanent fault at point F, the substation exit breaker CB1 trips and fails to coincide, the FTU that detects the overcurrent phenomenon initiates the FA algorithm and exchanges fault detection information with the adjacent FTU. FTU2 at the upstream segment switch of the fault point detects the fault information, and the FTU3 at the downstream segment switch of the fault point does not detect the fault information, so it is determined that the fault is located between FTU2 and FTU3, and FTU2 and FTU3 respectively control S1 and S2 to trip. Isolating the fault, and then issuing a start to restore the power supply signal, FTU1 and FTU4 respectively control the closing of CB1 and S3 to restore the power supply of the non-faulty section.
表 4  Table 4
M侧开关 N侧开关 M side switch N side switch
FTU FTU编号 被监控开关 开关编号 开关类型 b FTU FTU number Monitored switch Switch number Switch type b
FTU编号 开关编号 FTU编号 开关编号 FTU number Switch number FTU number Switch number
FTU 1 1 CB1 1 1 0 0 2 1 FTU 1 1 CB1 1 1 0 0 2 1
FTU 2 2 S1 1 3 1 1 3 1 FTU 2 2 S1 1 3 1 1 3 1
FTU 3 3 S2 1 3 2 1 4 1 FTU 3 3 S2 1 3 2 1 4 1
FTU 4 4 S3 1 6 3 1 5 1 FTU 4 4 S3 1 6 3 1 5 1
FTU 5 5 S4 1 3 4 1 6 1
Figure imgf000008_0001
如图 4及表 5所示： 电缆线路分布式智能 FA***。 其***构成与架空线路分布式智能 FA***类似， 不同之处在于每个 FTU监控环网柜中的多个开关， 馈线故障点可能位于环网 柜之间、 环网柜母线或者环网柜出线上。 假如环网柜之间线路上 F1 点发生故障， FTU控制 故障线路两侧环网柜 RMU1与 RMU2的进线开关 S12 S21跳闸隔离故障， 然后合上断路器 CB1 RMU3的联络开关 S31恢复 RMU1与 RMU2的供电； 假如 RMU2母线上 F2点发生故 障， FTU控制 RMU2的所有开关 （进线开关 S21 S22和出线开关 S23 ) 跳闸隔离故障， 然 后合上断路器 CB1， 恢复 RMUl供电， 而 RMU2停电等待检修； 假如 RMU2出线上 F3点发 生故障， FTU控制 RMU2的出线开关 S23跳闸隔离故障， 然后断路器 CB1合闸恢复 RMU1 和 RMU2的供电。 FTU 5 5 S4 1 3 4 1 6 1
Figure imgf000008_0001
As shown in Figure 4 and Table 5: Cable line distributed intelligent FA system. The system configuration is similar to the overhead line distributed intelligent FA system. The difference is that each FTU monitors multiple switches in the ring network cabinet. The feeder fault points may be located between the ring network cabinets, the ring network cabinet bus or the ring network cabinet outlet. on. If the F1 point on the line between the ring network cabinets fails, the FTU control fault line is connected to the RMU1 and RMU2 line switches S12 S21 tripping isolation fault, then close the circuit breaker CB1 RMU3 contact switch S31 to restore RMU1 and RMU2 If the F2 point of the RMU2 bus line fails, the FTU controls all the switches of the RMU2 (the incoming switch S21 S22 and the outgoing switch S23) to trip to isolate the fault, then close the circuit breaker CB1, restore the RMUl power supply, and the RMU2 is powered off for maintenance; If the F3 point on the RMU2 outgoing line fails, the FTU controls the outgoing switch S23 of the RMU2 to trip to isolate the fault, and then the circuit breaker CB1 is closed to restore the power supply of RMU1 and RMU2.
表 5  table 5
M侧开关 N侧开关 开关 开关  M side switch N side switch switch switch
FTU FTU编号 被监控开关 FTU编 开关编 FTU编 开关编 编号 类型  FTU FTU No. Monitored Switch FTU Compilation Switch FTU Compilation Switch No. Type
FTU 1 1 CB1 1 1 0 0 2 1 FTU 1 1 CB1 1 1 0 0 2 1
S11 1 3 1 1 2 2 3 S11 1 3 1 1 2 2 3
FTU 2 2 S12 2 3 2 1 3 3 1 FTU 2 2 S12 2 3 2 1 3 3 1
S13 3 5 2 1, 2 0 0 S13 3 5 2 1, 2 0 0
S21 1 3 2 2 3 2, 3 S21 1 3 2 2 3 2, 3
FTU 3 3 S22 2 3 3 1, 3 4 1 FTU 3 3 S22 2 3 3 1, 3 4 1
S23 3 5 3 1 2 0 0 S23 3 5 3 1 2 0 0
S31 1 6 3 2 4 2 3 S31 1 6 3 2 4 2 3
FTU 4 4 S32 2 3 4 1 3 5 1 FTU 4 4 S32 2 3 4 1 3 5 1
S33 3 5 4 1, 2 0 0 S41 1 4 2 2 5 2, 3S33 3 5 4 1, 2 0 0 S41 1 4 2 2 5 2, 3
FTU 5 5 S42 2 3 5 1, 3 6 1 FTU 5 5 S42 2 3 5 1, 3 6 1
S43 3 5 5 1, 2 0 0 S43 3 5 5 1, 2 0 0
FTU 6 6 CB2 1 2 5 2 0 0 FTU 6 6 CB2 1 2 5 2 0 0
如图 5和表 6所示： 混合线路上的架空线故障与电缆线路故障的故障定位、 隔离与供电 恢复操作过程同上述。 而在架空线与电缆邻接线路故障时,需要控制故障点两侧的架空线柱上 开关及环网柜的进线开关跳闸以隔离故障。 假如图 3所示 F点发生故障时， FTU控制故障点 两侧的开关 （柱上开关 S1和 RMU1 的进线开关 S11 ) 跳闸隔离故障， 然后控制断路器 CB1 和 RMU1的联络开关 S12合闸以恢复非故障区段的正常供电。 As shown in Figure 5 and Table 6: The overhead line fault on the hybrid line and the fault location, isolation and power restoration operation of the cable line fault are the same as above. When the overhead line and the cable adjacent to the line are faulty, it is necessary to control the overhead line switch on both sides of the fault point and the incoming line switch of the ring network cabinet to trip to isolate the fault. If the F point fails as shown in Figure 3, the switches on both sides of the FTU control fault point (the switch S1 of the column and the incoming switch S11 of the RMU1) trip to isolate the fault, and then the control switch S12 of the circuit breaker CB1 and RMU1 is closed. Restore normal power to the non-faulty zone.
表 6  Table 6
Figure imgf000009_0001
本发明未述部分与现有技术相同。
Figure imgf000009_0001
The parts not described in the present invention are the same as those in the prior art.

Claims

WO 2014/201989 权 要 求 书 PCT/CN2014/080041  WO 2014/201989 Right to request PCT/CN2014/080041
1、 分布式智能馈线自动化控制方法， 其特征在于， 包括如下步骤： 1. A distributed intelligent feeder automatic control method, characterized in that the method comprises the following steps:
提供分布式智能 FA***， 其具有复数个馈线终端 FTU， 每个馈线终端 FTU均链接并监 控一个或者多个开关；  Providing a distributed intelligent FA system having a plurality of feeder terminal FTUs, each feeder terminal FTU linking and monitoring one or more switches;
对每个 FTU进行编号， 用字母表示， 按顺序依次为 1， 2， . . . N, N为馈线上 FTU的个数； 为每一个 FTU建立开关配置信息表， 对每个 FTU监控的所有开关进行编号， 然后用区 别于 FTU标示的字母标示被监控开关的类型及其相邻开关的信息， 其中开关类型分为 M端 电源开关， N端电源开关， 干线分段开关， 支线中间开关， 支线末端开关和联络开关， 依次 编号为 1-6; 其邻近开关的信息包括邻近开关的 FTU号， 及其在 FTU中的编号；  Each FTU is numbered and represented by letters, in order of 1, 2, . . . N, N is the number of FTUs on the feeder; a switch configuration information table is created for each FTU, for each FTU monitored The switch is numbered, and then the type of the monitored switch and its adjacent switches are indicated by letters different from the FTU mark. The switch type is divided into M-side power switch, N-side power switch, trunk segment switch, and branch line intermediate switch. The branch end switch and the tie switch are numbered 1-6 in sequence; the information of the adjacent switch includes the FTU number of the adjacent switch, and its number in the FTU;
发生故障时， 根据上述 FTU的开关配置表， 采集 FTU根据本地所监控的开关及相邻开关的测 量信息， 根据信息反馈逐级进行监控， 完成故障定位、 隔离故障和供电恢复操作。 In the event of a fault, according to the switch configuration table of the above FTU, the acquisition FTU monitors the fault according to the feedback of the locally monitored switch and the adjacent switch, and performs fault location, isolation fault and power restoration operation according to the information feedback.
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