CN111817353B - 一种配电网设备故障处理方法 - Google Patents

一种配电网设备故障处理方法 Download PDF

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CN111817353B
CN111817353B CN202010797476.8A CN202010797476A CN111817353B CN 111817353 B CN111817353 B CN 111817353B CN 202010797476 A CN202010797476 A CN 202010797476A CN 111817353 B CN111817353 B CN 111817353B
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CN111817353A (zh
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谭世克
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Zhengzhou Xianglong Electric Power Co ltd
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    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/388—Islanding, i.e. disconnection of local power supply from the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • 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
    • Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

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

Abstract

本发明公开了一种配电网设备故障处理方法，包括：配置终端关联信息，配电网故障恢复和终端负荷恢复。本发明的一种配电网设备故障处理方法，自动化运行水平高，可实现远程控制和实时检测，基于对设备的关联配置，通过馈线设备联调自动完成故障检测与隔离，并通过优化后的负荷恢复策略实现设备负荷快速恢复。

Description

一种配电网设备故障处理方法
技术领域
本发明涉及配电网领域，具体涉及一种配电网设备故障处理方法。
背景技术
当配电网发生故障时，分布式电源如何操作将直接影响到故障恢复策略的执行，当故障发生时，当包含终端或就地装置等设备的电网与公共电网分离后，电网将进行孤岛运行。
现有的管理方式对于行业设备的管理较为混乱，缺乏关联性，导致在故障发生时对终端和就地装置等设备进行供电保障和负荷恢复时，较为被动。
发明内容
为了解决上述现有技术中存在的缺陷和不足，本发明一种配电网设备故障处理方法，包括。
S1.配置终端关联信息。
(1)为每一个终端建立有向关联列表，列表里包含所有与本终端有馈线连接的相邻终端，包括与本终端关联的所有前向终端、后向终端和并行终端，其中，所述前向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相同，所述后向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相反，所述并行终端与本终端有相同的后向终端。
(2)确定全网功率流动方向，对于含有多电源的网络，以任意一个分布式电源为原点，全网功率流动方向为从该原点向全网供电的功率方向。
S2.配电网故障恢复。
含分布式电源的配电网故障恢复步骤如下。
(1)故障发生后，对故障馈线上的分布式电源，若为非黑启动分布式电源，直接跳开其出口断路器；对于黑启动分布式电源，断开并网断路器，采用断路器接口的孤岛运行模式为当地用户供电。当黑启动分布式电源的容量小于当地用户的负荷功率时，进行甩负荷操作。非故障馈线上的分布式电源可继续保持并网运行。
(2)故障定位之后，搜索失电区域，终端接收就地装置的指令，并结合对应的有向关联列表和全网功率流动方向，诊断故障区域，诊断完毕后通知就地装置，就地装置跳开故障周边的所有开关，同时检测操作的结果，若跳闸不成功，则通过和其他就地装置合作，扩大隔离范围，并通过合闭首端出口断路器开关实现故障上游区域恢复供电，同时通过合闭联络开关，恢复故障下游的供电。
其中，馈线每个开关处的就地装置获取电流数据，当线路发生短路时，由就地装置实现短路故障的判断，在线路出口处，就地装置形成一个公用跳闸信号，跳开断路器；所有终端获取就地装置的故障信息，结合相邻开关的终端获取的信息，判断故障位置；就地装置根据终端的判断结果将故障两端的开关断开，实现故障区域的隔离，并将隔离结果通知其他就地装置；隔离成功后，就地装置结合闭锁信息，合闭首端开关和联络开关，恢复非故障区的供电。
(3)若网络中还有未恢复区，转步骤(4),否则转步骤(5)。
(4)考虑故障馈线上所有的黑启动分布式电源，对未恢复区搜索恢复路径，若找到,进入多用户孤岛运行模式，否则维持当前的运行状态。
(5)对网络中所有的非黑启动分布式电源进行同期操作，再次并网。在此阶段，继续搜索最优开关策略，如果开关状态有变化，则在并网完成后对开关状态进行调整，否则，保持当前状态。
(6)故障清除后，恢复到故障前的运行方式。
S3.终端负荷恢复。
(1)实时监测***母线频率、电压、有功功率、无功功率以及终端运行状态，当出现扰动使***频率或电压异常到终端响应动作值时，终端主动响应投入开关。
(2)电能表获取参与主动响应的终端容量信息，并针对每条装设投切装置的母线，根据其就地频率、电压、有功功率、无功功率计算负荷恢复灵敏度指标，并将所述容量信息和负荷恢复灵敏度指标上传至协调中心。
(3)不同就地装置实时获取频率、电压、有功、无功等就地状态信息量，计算得到当前的响应负荷优先级。当频率或电压值达到装置动作值的时候，根据不同母线的响应负荷优先级，确定当前工况下需要投入的负荷量。结合终端响应信息和负荷恢复灵敏度指标计算优化的负荷恢复量，更新负荷恢复策略。
(4)将优化后的负荷恢复策略下发至各就地装置。就地装置接收指令，更新每轮动作值，经过一定延时后动作投入负荷。
进一步地，所述配电网恢复故障，还包括。
如果终端检测到前向终端有前向过流动作标志，则判断为非故障区，如果终端检测到前向终端有后向过流保护动作，且未检测到其他终端有前向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
进一步地，所述配电网恢复故障，还包括。
如果终端检测到后向终端有后向过流动作标志，则判断为非故障区，如果终端检测到后向终端有前向过流保护动作，且未检测到其他终端有后向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
本发明的一种配电网设备故障处理方法，自动化运行水平高，可实现远程控制和实时检测，基于对设备的关联配置，通过馈线设备联调自动完成故障检测与隔离，并通过优化后的负荷恢复策略实现设备负荷快速恢复。
附图说明
图1是本发明一种配电网设备故障处理方法的流程图。
具体实施方式
如图1所示，本发明一种配电网设备故障处理方法，包括。
S1.配置终端关联信息。
(1)为每一个终端建立有向关联列表，列表里包含所有与本终端有馈线连接的相邻终端，包括与本终端关联的所有前向终端、后向终端和并行终端，其中，所述前向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相同，所述后向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相反，所述并行终端与本终端有相同的后向终端。
(2)确定全网功率流动方向，对于含有多电源的网络，以任意一个分布式电源为原点，全网功率流动方向为从该原点向全网供电的功率方向。
S2.配电网故障恢复。
含分布式电源的配电网故障恢复步骤如下。
(1)故障发生后，对故障馈线上的分布式电源，若为非黑启动分布式电源，为保证电能质量，直接跳开其出口断路器；对于黑启动分布式电源，断开并网断路器，采用断路器接口的孤岛运行模式为当地用户供电。当黑启动分布式电源的容量小于当地用户的负荷功率时，进行甩负荷操作。非故障馈线上的分布式电源可继续保持并网运行。
(2)故障定位之后，搜索失电区域，终端接收就地装置的指令，并结合对应的有向关联列表和全网功率流动方向，诊断故障区域，诊断完毕后通知就地装置，就地装置跳开故障周边的所有开关，同时检测操作的结果，若跳闸不成功，则通过和其他就地装置合作，扩大隔离范围，并通过合闭首端出口断路器开关实现故障上游区域恢复供电，同时通过合闭联络开关，恢复故障下游的供电。
其中，馈线每个开关处的就地装置获取电流数据，当线路发生短路时，由就地装置实现短路故障的判断，在线路出口处，就地装置形成一个公用跳闸信号，跳开断路器；所有终端获取就地装置的故障信息，结合相邻开关的终端获取的信息，判断故障位置；就地装置根据终端的判断结果将故障两端的开关断开，实现故障区域的隔离，并将隔离结果通知其他就地装置；隔离成功后，就地装置结合闭锁信息，合闭首端开关和联络开关，恢复非故障区的供电。
(3)若网络中还有未恢复区，转步骤(4),否则转步骤(5)。
(4)考虑故障馈线上所有的黑启动分布式电源，对未恢复区搜索恢复路径，若找到,进入多用户孤岛运行模式，否则维持当前的运行状态。
(5)对网络中所有的非黑启动分布式电源(包括孤岛运行单元和跳开的分布式电源单元)进行同期操作，再次并网。在此阶段，继续搜索最优开关策略，如果开关状态有变化，则在并网完成后对开关状态进行调整，否则，保持当前状态。
(6)故障清除后，恢复到故障前的运行方式。
S3.终端负荷恢复。
(1)实时监测***母线频率、电压、有功功率、无功功率以及终端运行状态，当出现扰动使***频率或电压异常到终端响应动作值时，终端主动响应投入开关。
(2)电能表获取参与主动响应的终端容量信息，并针对每条装设投切装置的母线，根据其就地频率、电压、有功功率、无功功率计算负荷恢复灵敏度指标，并将所述容量信息和负荷恢复灵敏度指标上传至协调中心。
(3)不同就地装置实时获取频率、电压、有功、无功等就地状态信息量，计算得到当前的响应负荷优先级。当频率或电压值达到装置动作值的时候，根据不同母线的响应负荷优先级，确定当前工况下需要投入的负荷量。结合终端响应信息和负荷恢复灵敏度指标计算优化的负荷恢复量，更新负荷恢复策略。
(4)将优化后的负荷恢复策略下发至各就地装置。就地装置接收指令，更新每轮动作值，经过一定延时后动作投入负荷。
进一步地，所述配电网恢复故障，还包括。
如果终端检测到前向终端有前向过流动作标志，则判断为非故障区，如果终端检测到前向终端有后向过流保护动作，且未检测到其他终端有前向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
进一步地，所述配电网恢复故障，还包括。
如果终端检测到后向终端有后向过流动作标志，则判断为非故障区，如果终端检测到后向终端有前向过流保护动作，且未检测到其他终端有后向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
所述终端可以是配电网中除就地设备外的各类用电设备，如一次设备，二次设备等。
本发明的一种配电网设备故障处理方法，自动化运行水平高，可实现远程控制和实时检测，基于对设备的关联配置，通过馈线设备联调自动完成故障检测与隔离，并通过优化后的负荷恢复策略实现设备负荷快速恢复。
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。

Claims (3)

1.一种配电网设备故障处理方法，其特征在于，包括：
S1.配置终端关联信息：
(1)为每一个终端建立有向关联列表，列表里包含所有与本终端有馈线连接的相邻终端，包括与本终端关联的所有前向终端、后向终端和并行终端，其中，所述前向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相同，所述后向终端到本终端的馈线电流方向与本终端到下一终端的馈线电流方向相反，所述并行终端与本终端有相同的后向终端；
(2)确定全网功率流动方向，对于含有多电源的网络，以任意一个分布式电源为原点，全网功率流动方向为从该原点向全网供电的功率方向；
S2.配电网故障恢复：
含分布式电源的配电网故障恢复步骤如下：
(1)故障发生后，对故障馈线上的分布式电源，若为非黑启动分布式电源，直接跳开其出口断路器；对于黑启动分布式电源，断开并网断路器，采用断路器接口的孤岛运行模式为当地用户供电；当黑启动分布式电源的容量小于当地用户的负荷功率时，进行甩负荷操作；非故障馈线上的分布式电源可继续保持并网运行；
(2)故障定位之后，搜索失电区域，终端接收就地装置的指令，并结合对应的有向关联列表和全网功率流动方向，诊断故障区域，诊断完毕后通知就地装置，就地装置跳开故障周边的所有开关，同时检测操作的结果，若跳闸不成功，则通过和其他就地装置合作，扩大隔离范围，并通过合闭首端出口断路器开关实现故障上游区域恢复供电，同时通过合闭联络开关，恢复故障下游的供电；
其中，馈线每个开关处的就地装置获取电流数据，当线路发生短路时，由就地装置实现短路故障的判断，在线路出口处，就地装置形成一个公用跳闸信号，跳开断路器；所有终端获取就地装置的故障信息，结合相邻开关的终端获取的信息，判断故障位置；就地装置根据终端的判断结果将故障两端的开关断开，实现故障区域的隔离，并将隔离结果通知其他就地装置；隔离成功后，就地装置结合闭锁信息，合闭首端开关和联络开关，恢复非故障区的供电；
(3)若网络中还有未恢复区，转步骤(4),否则转步骤(5)；
(4)考虑故障馈线上所有的黑启动分布式电源，对未恢复区搜索恢复路径，若找到,进入多用户孤岛运行模式，否则维持当前的运行状态；
(5)对网络中所有的非黑启动分布式电源进行同期操作，再次并网；在此阶段，继续搜索最优开关策略，如果开关状态有变化，则在并网完成后对开关状态进行调整，否则，保持当前状态；
(6)故障清除后，恢复到故障前的运行方式；
S3.终端负荷恢复：
(1)实时监测***母线频率、电压、有功功率、无功功率以及终端运行状态，当出现扰动使***频率或电压异常到终端响应动作值时，终端主动响应投入开关；
(2)电能表获取参与主动响应的终端容量信息，并针对每条装设投切装置的母线，根据其就地频率、电压、有功功率、无功功率计算负荷恢复灵敏度指标，并将所述容量信息和负荷恢复灵敏度指标上传至协调中心；
(3)不同就地装置实时获取频率、电压、有功、无功等就地状态信息量，计算得到当前的响应负荷优先级；当频率或电压值达到装置动作值的时候，根据不同母线的响应负荷优先级，确定当前工况下需要投入的负荷量；结合终端响应信息和负荷恢复灵敏度指标计算优化的负荷恢复量，更新负荷恢复策略；
(4)将优化后的负荷恢复策略下发至各就地装置；就地装置接收指令，更新每轮动作值，经过一定延时后动作投入负荷。
2.根据权利要求1所述的方法，其特征在于，所述配电网故障恢复，还包括：
如果终端检测到前向终端有前向过流动作标志，则判断为非故障区，如果终端检测到前向终端有后向过流保护动作，且未检测到其他终端有前向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
3.根据权利要求1所述的方法，其特征在于，所述配电网故障恢复，还包括：
如果终端检测到后向终端有后向过流动作标志，则判断为非故障区，如果终端检测到后向终端有前向过流保护动作，且未检测到其他终端有后向过流保护动作，则判断为故障区域，通知就地装置执行开关跳闸命令隔离故障，同时向其他终端发送开关联调命令。
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