CN113708372A - Power distribution network regional agent power restoration method and power distribution network feeder line agent power transfer method - Google Patents

Power distribution network regional agent power restoration method and power distribution network feeder line agent power transfer method Download PDF

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Publication number
CN113708372A
CN113708372A CN202111177458.0A CN202111177458A CN113708372A CN 113708372 A CN113708372 A CN 113708372A CN 202111177458 A CN202111177458 A CN 202111177458A CN 113708372 A CN113708372 A CN 113708372A
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China
Prior art keywords
agent
feeder
regional
transfer
distribution network
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CN202111177458.0A
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Inventor
汪李忠
钱浩
罗少杰
董志会
姚海燕
留毅
高俊青
邓敏
刘航
刘星
胡晨
钱超
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State Grid Zhejiang Electric Power Co Ltd Hangzhou Yuhang District Power Supply Co
Hangzhou Power Equipment Manufacturing Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Hangzhou Power Equipment Manufacturing Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN202111177458.0A priority Critical patent/CN113708372A/en
Publication of CN113708372A publication Critical patent/CN113708372A/en
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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
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • 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
    • H02J13/00022—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 using wireless data transmission
    • 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
    • H02J13/00028—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 involving the use of Internet protocols
    • 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
    • H02J3/007—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
    • 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
    • Y04S10/50—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
    • 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
    • Y04S40/124—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 using wired telecommunication networks or data transmission busses
    • 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
    • Y04S40/126—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 using wireless data transmission

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention discloses a method and a device for recovering power supply by using a regional agent of a power distribution network, a method and a device for transferring power supply by using a feeder agent of the power distribution network, a fault recovery device of the power distribution network and a computer readable storage medium, wherein the method comprises the steps of determining the regional agent of adjacent feeders; sending a transfer request to a corresponding feeder agent through the regional agent; receiving feeder constraint information sent by the feeder agent through a 5G channel; determining a target feeder agent according to the feeder constraint information; and sending special supply confirmation information to the target feeder line agent and receiving the transfer. The invention utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only one-way transfer is needed in the recovery process, and the direct communication with the feeder line agent can be realized when the feeder line constraint information is received by the agent of the to-be-transferred area, so that the communication frequency is obviously reduced, the recovery time is further shortened, the communication traffic is reduced, meanwhile, a large number of optical fibers are avoided from being laid, and the cost is obviously reduced.

Description

Power distribution network regional agent power restoration method and power distribution network feeder line agent power transfer method
Technical Field
The invention relates to the field of power distribution network fault elimination, in particular to a power distribution network regional agent power restoration method and device, a power distribution network feeder line agent transfer method and device, power distribution network fault restoration equipment and a computer readable storage medium.
Background
The fault recovery of the power distribution network refers to restoration reconstruction when a permanent fault occurs in the power distribution network, and the purpose of the fault recovery is to recover more fault loads at a higher speed. The fault recovery has important significance on the quality of electric energy of the power distribution network and the quality of power supply service. Power distribution network fault recovery strategies are generally classified into centralized and distributed. The centralized control strategy is generally a mathematical optimization method, a heuristic search method and an artificial intelligence algorithm, the algorithms calculate and recover an optimal scheme based on global information, the realization principle is simpler, but along with the enlargement of the scale of the power distribution network, the calculation amount of the algorithms is increased, the recovery timeliness can not meet the requirement gradually, and in addition, a single recovery decision center can also reduce the reliability of the system. The multi-agent system has the characteristic of distributed intelligence, and is more applied to fault recovery of the active power distribution network.
However, the existing multi-agent fault recovery methods for the power distribution network are all based on optical fiber channels, a large number of optical fibers need to be configured in the power distribution network, and the method is limited by the problem of cost.
In summary, how to reduce the cost of power distribution network construction, reduce the data transmission amount, and reduce the recovery time is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a method and a device for recovering power supply by a regional agent of a power distribution network, a method and a device for transferring power supply by a feeder agent of the power distribution network, a fault recovery device of the power distribution network and a computer readable storage medium, so as to solve the problems of high cost, large data transmission quantity and long recovery time consumption of the power distribution network in the prior art.
In order to solve the technical problem, the invention provides a method for recovering power supply of a regional agent of a power distribution network, which comprises the following steps:
determining a regional agent of an adjacent feeder;
sending a transfer request to a corresponding feeder agent through the regional agent;
receiving feeder constraint information sent by the feeder agent through a 5G channel;
determining a target feeder agent according to the feeder constraint information;
and sending special supply confirmation information to the target feeder line agent and receiving the transfer.
Optionally, in the method for restoring power supply by a distribution network area agent, when there are a plurality of feeder agents, the receiving feeder constraint information sent by the feeder agents through a 5G channel includes:
receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel;
accordingly, the determining a target feeder according to the feeder constraint information comprises:
determining a transfer balance degree corresponding to each feeder line agent according to the plurality of feeder line constraint information;
and determining the feeder agent with the maximum transfer balance degree as a target feeder.
An apparatus for restoring power to a power distribution network regional agent, comprising:
the adjacent confirmation module is used for determining the area agent of the adjacent feeder line;
the request sending module is used for sending a transfer request to the corresponding feeder line agent through the regional agent;
the 5G communication module is used for receiving feeder constraint information sent by the feeder agent through a 5G channel;
the feeder line determining module is used for determining a target feeder line agent according to the feeder line constraint information;
and the first handshake module is used for sending the special supply confirmation information to the target feeder line agent and receiving the transfer supply.
Optionally, in the power distribution network area agent restoration power supply apparatus, when there are a plurality of feeder agents, the 5G communication module includes:
the complex receiving unit is used for receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel;
accordingly, the feeder determination module comprises:
a transfer determining unit, configured to determine, according to the feeder constraint information, a transfer balance degree corresponding to each feeder agent;
and the target feeder determining unit is used for determining the feeder agent with the maximum transfer balance degree as the target feeder.
A power distribution network feeder agent transfer method comprises the following steps:
receiving a transfer request;
determining the network address of the regional agent to be transferred according to the transfer request;
sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address;
and after receiving the special supply confirmation information returned by the regional agent to be transferred, transferring the special supply confirmation information to the regional agent to be transferred.
Optionally, in the method for forwarding an agent of a feeder line of a power distribution network, when a plurality of forwarding requests are received, the determining, according to the forwarding requests, a network address of an agent of an area to be forwarded includes:
determining the network address of each regional agent to be transferred and the corresponding regional load priority according to the plurality of transfer requests;
determining the region agent to be transferred with the highest regional load priority as a target region agent;
correspondingly, the sending feeder constraint information to the to-be-transferred regional agent through the 5G channel according to the network address includes:
and sending the feeder constraint information to the target area agent through a 5G channel according to the network address.
Optionally, in the method for forwarding a feeder agent of a power distribution network, after the sending feeder constraint information to the regional agent to be forwarded through a 5G channel according to the network address, the method further includes:
and after the feeder line constraint information is sent to the target area agent, under the condition that the dedicated supply confirmation information is not received after a first preset time, the target area agent is removed, the to-be-transferred area agent with the highest area load priority is determined as a new target area agent in the rest area agents, and the feeder line constraint information is sent to the new target area agent.
An apparatus for power distribution network feeder agent transfer, comprising:
the receiving module is used for receiving a transfer request;
the website confirming module is used for confirming the network address of the regional agent to be transferred according to the transfer request;
the constraint module is used for sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address;
and the second handshake module is used for transferring the special supply confirmation information returned by the regional agent to be transferred to the regional agent to be transferred.
A power distribution network fault recovery device comprising:
a memory for storing a computer program;
a processor for implementing the power distribution network area proxy power restoration method according to any one of the above and/or the power distribution network feeder proxy re-supply method according to any one of the above when executing the computer program.
A computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the distribution network area proxy restoration method as in any one of the above and/or the distribution network feeder proxy re-provisioning method as in any one of the above.
The invention provides a power distribution network regional agent power restoration method, which comprises the steps of determining regional agents of adjacent feeders; sending a transfer request to a corresponding feeder agent through the regional agent; receiving feeder constraint information sent by the feeder agent through a 5G channel; determining a target feeder agent according to the feeder constraint information; and sending special supply confirmation information to the target feeder line agent and receiving the transfer.
In the prior art, due to the limitation of laying of optical fibers, a lower-layer agent (a regional agent) and an upper-layer agent (a feeder agent) between different substations (different feeders) cannot directly communicate, bidirectional transfer of information needs to be performed through one or more agents, the number of times of communication between the agents is increased at each stage of power restoration, further, the communication traffic is increased, the overall restoration process is complicated, and the fault tolerance rate is reduced. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost. The invention also provides a power distribution network regional agent recovery power supply device, a power distribution network feeder line agent transfer method, a power distribution network feeder line agent transfer device, power distribution network fault recovery equipment and a computer readable storage medium.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-agent system architecture;
fig. 2 is a schematic flow chart of an embodiment of a method for restoring power supply to a power distribution network regional agent according to the present invention;
fig. 3 is a network topology diagram of a multi-agent system architecture according to a specific embodiment of the method for restoring power supply to a power distribution network area agent provided in the present invention;
fig. 4 is a schematic signal transmission flow diagram of a recovery process of a power distribution network regional proxy power recovery method according to an embodiment of the present invention;
5-a, 5-b, 5-c are schematic voltage diagrams of points before and after a feeder line is supplied for a specific embodiment of the method for restoring power supply of a power distribution network regional agent provided by the present invention, respectively;
fig. 6 is a schematic signal transmission flow diagram of a recovery process of a power distribution network regional agent power restoration method in the prior art;
fig. 7 is a schematic structural diagram of an embodiment of a power distribution network regional proxy recovery power supply apparatus provided in the present invention;
fig. 8 is a schematic flow chart of an embodiment of a power distribution network feeder agent transfer method provided in the present invention;
fig. 9 is a schematic flow chart of another embodiment of a power distribution network feeder agent transfer method according to the present invention;
fig. 10 is a schematic structural diagram of an embodiment of a power distribution network feeder agent transfer device provided in the present invention.
Detailed Description
Firstly, a multi-Agent system architecture of a power distribution network is simply introduced, the multi-Agent system architecture is set into two layers, an upper-layer Agent is called a Feeder Agent (FA), is arranged at a Feeder outlet of a transformer substation, stores network topology of a Feeder, can monitor operation data of a lower-layer Agent, and plays a role in coordination when the lower-layer Agent conflicts, and a lower-layer Agent is called a Regional Agent (RA) and is arranged at a contact switch of the Feeder. All the regional agents communicate with other regional agents through 5G communication channels, and feeder agents communicate with each other through intra-station or inter-station fiber channels. And the regional agent carries out specific marking according to the power supply condition and the distribution condition of the distributed power supply in the region.
1) If the local Region is normally powered on, marking the local Region Agent as a Normal Region Agent (NRA);
2) if the area is powered off but a VF (frequency and voltage) controlled distributed power supply exists in the area, marking that the area Agent is a Micro-Grid area Agent (MRA);
3) if the Region is powered off and no VF (frequency voltage) controlled distributed power supply exists in the Region, marking that the Region Agent is a Non-Transfer Region Agent (NTRA);
the schematic structural diagram is shown in fig. 1, the regional agents detect the electrical information in the region in real time and update the marks of the regional agents, when the system fails, all the regional agents are normal regional agents, and after the system fails, the regional agents detect the change of the electrical information (voltage and frequency) in the region and update the marks of the regional agents. Differently marked agents employ different execution logic in recovery.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the present invention is to provide a method for recovering power supply by a regional agent in a power distribution network, a flow diagram of a specific embodiment of which is shown in fig. 2, and is called a first specific embodiment, and the method includes:
s101: a regional agent for an adjacent feeder is determined.
In the present embodiment, from the perspective of the to-be-transferred regional agent that is to be powered off, the regional agents of the adjacent feeders, that is, the regional agents directly connected to the to-be-transferred regional agent and belonging to other feeder agents, are determined, and of course, the regional agents of the adjacent feeders should be the regional agents in the normal power supply state.
S102: and sending a transfer request to a corresponding feeder agent through the regional agent.
In this step, "corresponding feeder agent" refers to a feeder agent to which the regional agents adjacent to the regional agent to be transferred belong.
S103: and receiving feeder constraint information sent by the feeder agent through a 5G channel.
After receiving the transfer request sent in the previous step, the feeder agent can know the initiator of the action, namely the network address information of the regional agent to be transferred according to the transfer request, and further can directly send the feedback feeder constraint information to the regional agent to be transferred through a 5G channel without returning through an adjacent regional agent, so that one-step transfer is omitted.
S104: and determining a target feeder agent according to the feeder constraint information.
S105: and sending special supply confirmation information to the target feeder line agent and receiving the transfer.
In this step, after the target feeder agent receives the dedicated confirmation information, it is equivalent to that the target feeder agent and the to-be-transferred-to-supply regional agent complete handshake, and the to-be-transferred-to-supply regional agent has been transferred to the feeder of the target feeder agent for management.
Of course, due to the complexity of the power distribution network, there is a case that one regional agent to be transferred can obtain power supply through a plurality of feeder agents at the same time, and in this case, the most suitable feeder agent needs to be selected from the plurality of feeder agents, and the specific steps are as follows:
when there are a plurality of feeder agents, the receiving feeder constraint information sent by the feeder agents through a 5G channel includes:
and receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel.
Accordingly, the determining a target feeder according to the feeder constraint information comprises:
determining a transfer balance degree corresponding to each feeder line agent according to the plurality of feeder line constraint information;
and determining the feeder agent with the maximum transfer balance degree as a target feeder.
The definition of the feeder line constraint information can be seen in the following 6), the energy supply transfer capacity of different feeder line agents is determined through different feeder line constraint information, the feeder line agent with the highest energy transfer capacity is selected as the target feeder line, and the overall stability of the power distribution network is improved.
Indexes and criteria in the power distribution network fault recovery process are briefly described as follows:
1) a feeder branch current constraint;
in order to ensure that the current of each branch in the transfer feeder line is not out of limit after transfer, the current of the branch of the feeder line is restricted by IcFComprises the following steps:
Figure BDA0003295869160000081
d represents the collective set of all branches under the feeder agent control feeder. I ismax.jAnd IjThe line representing branch j has a maximum allowable current and a current flowing before the transfer, respectively.
2) A feeder node voltage constraint;
defining the path impedance Zm-nIs the sum of the impedances on the lines from node m to node n.
Figure BDA0003295869160000082
L is the path of minimum sum of impedances between nodes m, n.
In order to ensure that the voltage of each point in a normal area in the feeder line is not out of limit after transfer, the voltage constraint of the node of the feeder line is expressed in a current form.
Ivb＝(Vb-Vmin.b)/ZF-b (3)
Node b is the lowest node voltage point in the normal region under the feeder line, VbTo supply the voltage of the preceding node b, Vmin.bIs the lowest allowed voltage of node b, ZF-bWhich is the path impedance from the feeder outlet terminal F to the node b.
3) Restraining the voltage of the region to be transferred;
in order to ensure that the node voltage in the region to be transferred and supplied does not exceed the limit after transfer and supply, the voltage constraint of the region to be transferred and supplied is expressed in a current form:
Ivf＝(Vh-Vmin.h)/ZF-f (4)
node f is the node in the region to be supplied, node h is the voltage in the adjacent normal region, VhTo supply the voltage of the preceding node h, Vmin.hIs the lowest allowed voltage of node h, ZF-fIs the path impedance of the feeder line outlet terminal F to the node F.
4) Transferring the feeder line to supply surplus;
the surplus of the feeder line for transferring power can describe the transferring power which can be provided by the feeder line, and the surplus of the feeder line for transferring power is mainly restricted by the branch current of the feeder line and the node voltage of the feeder line and is represented as follows:
Sfe＝UN×min(IcF,Ivb) (5)
UNis the nominal value of the node voltage.
5) Micro-grid surplus is supplied;
the distributed power supply in the power distribution network is divided into two types, one type adopts VFThe other type is an uncontrollable distributed power supply controlled by PQ and PV, which cannot independently operate in the microgrid and must operate along with reference voltage and frequency provided by the outside. The controllable distributed power supply is generally an energy storage device, a diesel engine and the like, and the uncontrollable distributed power supply is generally wind power generation, photovoltaic power generation equipment and the like.
The transfer capacity which can be provided by the microgrid regional agent is expressed as follows by using the surplus of the microgrid transfer:
Figure BDA0003295869160000091
d is a micro-grid area proxy control area, ScFor controllable distributed power capacity, SncFor uncontrollable distributed power capacity, SLIs the load capacity.
6) The balance degree is supplied after conversion;
considering that the to-be-transferred region may receive the transfer from the micro-grid region agent and the feeder line agent, defining the balance degree of the to-be-transferred to be:
Figure BDA0003295869160000092
the judgment conditions are as follows:
Figure BDA0003295869160000093
when C is presentRAAnd when the load is more than or equal to 0, the external transfer can be considered to restore all the loads in the area, the transfer is accepted, otherwise, the external transfer cannot meet all the local load requirements, and the transfer is refused.
7) A regional load priority;
Figure BDA0003295869160000094
d is the regional agent control scope, SjAnd wjThe load capacity and the importance level of the node j are quantized values, respectively. Dividing three levels according to the importance degree of the load, important load, normal load, cutting load, wjCorresponding to different values.
When the power distribution network normally operates, all the regional agent marks are normal regional agents, and after the power distribution network has a permanent fault and is cut off, the power supply of the downstream region of the fault region is lost, so that the power loss region is formed. And changing the area agent mark in the power failure area into an area agent to be transferred and a microgrid area agent.
When the recovery is just in progress, all tie switches in the loss of power zone are opened. Different agents perform different recovery logic according to the following settings.
1) A regional agent to be transferred;
and the regional agent to be transferred may receive the transfer information of the feeder line agent and the microgrid regional agent, and preferentially selects the transfer information of the feeder line agent for recovery.
1. Carrying out a feeder line agent transfer process;
1a, the regional agent to be transferred does not store topology information and can not directly communicate with a non-superior feeder line agent, and sends the regional load priority M of the regional agent to the surrounding normal regional agentscuAnd a transfer application containing own IP information is transferred.
Receiving feeder constraint related information (including feeder transfer surplus S) returned from feeder agentfeThe voltage of a normal node adjacent to the agent of the area to be transferred and the path impedance of the node and the outlet end of the feeder line) to calculate the balance degree of the area to be transferred and suppliedCRAIf the restoration condition is met, sending a transfer approval command to the feeder line agent, closing the section switch, receiving the transfer from the feeder line, completing the power supply restoration of the area, updating the identity of the section switch to be a normal area agent, and assisting the area agent to be transferred around to restore at the next stage. And if the recovery condition is not met, sending a refusal transfer command to the feeder line agent, and keeping the mark of the regional agent to be transferred.
2. Carrying out a micro-grid regional agent transfer process;
2a, if the information returned by the feeder agent is not received within a certain time, receiving a microgrid aggregation request and a microgrid transfer allowance S sent by a microgrid regional agentMGCalculating the conversion and supply balance degree CRAIf the recovery condition is met, the microgrid aggregation command and the area load priority M are agreed to the microgrid area agentcu。
And 2b, receiving an aggregation starting command sent by the micro-grid agent, closing the section switch, receiving the switching from the micro-grid regional agent, completing power supply recovery of the region, keeping the region agent marked as the regional agent to be switched, and waiting for further receiving the switching of the feeder line agent.
2) A normal area agent;
and receiving the area load priority Mcu and the transfer application sent by the area agent to be transferred, and transferring the message information to the upper feeder agent of the user.
3) Micro-grid area agent;
1. actively sending microgrid aggregation request and microgrid transfer surplus S to surrounding to-be-transferred regional agentsMG。
2. If a plurality of piconet aggregation approval commands are received, the to-be-transferred regional agent with the largest regional load priority Mcu is selected to reply the piconet aggregation starting command.
4) A feeder agent;
1. feeder agent receives a plurality of regional load priorities M forwarded by normal regional agentscuAfter the request is transferred, the regional load priority M is selectedcuThe largest regional agent to be transferred restricts the relevant information of the feeder line according to the IP address in the transfer applicationAnd sending the information to the corresponding regional agent to be transferred.
2. If receiving the transfer approval command from the regional agent to be transferred, bringing the regional agent into the feeder line of the regional agent to be transferred, and managing and controlling the regional agent; if receiving the refusal transfer command from the regional agent to be transferred, then the system will transfer the command to CRAAnd the lower regional agent to be transferred replies the feeder constraint related information.
The invention provides a power distribution network regional agent power restoration method, which comprises the steps of determining regional agents of adjacent feeders; sending a transfer request to a corresponding feeder agent through the regional agent; receiving feeder constraint information sent by the feeder agent through a 5G channel; determining a target feeder agent according to the feeder constraint information; and sending special supply confirmation information to the target feeder line agent and receiving the transfer. In the prior art, due to the limitation of laying of optical fibers, a lower-layer agent (a regional agent) and an upper-layer agent (a feeder agent) between different substations (different feeders) cannot directly communicate, bidirectional transfer of information needs to be performed through one or more agents, the number of times of communication between the agents is increased at each stage of power restoration, further, the communication traffic is increased, the overall restoration process is complicated, and the fault tolerance rate is reduced. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
One specific embodiment is provided below as a simulation verification:
and constructing 70 node 4 feeder distribution network verification recovery strategies. The network topology is as shown in fig. 3, 250kW photovoltaic power generation devices are connected to nodes 13, 27, and 40, respectively, and the photovoltaic power generation devices adopt a PQ control method and are regarded as uncontrollable distributed power sources. 150kW micro gas engine equipment is connected to the node 61, and the unit adopts a VF control method and is considered to be a controllable distributed power supply. In the figure, s denotes a breaker or a tie switch, L denotes a load, PV denotes a photovoltaic power generation facility, and GT denotes a gas turbine. Because the fault recovery process is short in duration, the output of the distributed power supply is considered to be stable, and the node load is unchanged. The corresponding values of the set important load, the normal load and the cut load are respectively 100, 50 and 25.
A permanent fault occurs at the set feeder F4. Regional agents RA 1-RA 10 are all downstream of the failure. Each regional agent detects that the voltage and the frequency in the region change and judges whether the regional agent is in a power-off region. The RA7 detects that the area contains the controllable distributed power supply, meets the microgrid operation condition, and marks the area as a microgrid area agent. And no distributed power supply exists in the areas RA 1-RA 6 and RA 8-RA 10, and the mark is a regional agent to be transferred.
The end-to-end communication delay of the 5G communication channel is 12 ms. The closing delay of the section switch is 30 ms. The message adopts improved R-GOOSE and R-SV messages which can be used for 5G communication channel transmission and respectively occupies 114 bytes and 253 bytes.
In the first phase, NTRA10 sends a transfer request and area load priority M to its respective upper feeder agent FA1, FA2 via NRA11 and NRA12cuNTRA9 and NTRA4 send a switch-over request and an area load priority M to FA2, FA3 via NRA13 and NRA14, respectivelycu. The FA1 and the FA3 only receive the unique forwarding request and respectively return the feeder related constraint information to the NTRA10 and NTRA 4. The FA2 receives the two transfer requests, compares the regional load priorities of the two applications, and sends the related information of feeder constraint to the NTRA10 with higher regional load priority. The NTRA4 receives the returned information of FA3 and calculates the balance degree C to be transferredRAAnd judging that the transfer can be accepted, sending a request for accepting the transfer to the FA3, and closing s 4. After receiving the two constraint messages, NTRA10 selects CRAThe larger FA1, sending an approve transfer command to FA1 and a reject transfer command to FA2, close s 12. The FA2 receives the rejection transfer instruction from NTRA10, and replies the feed line constraint related information to RA9, and RA9 accepts the transfer and closes s 10. MRA7 sends aggregation application and microgrid transfer surplus S to NTRA8 and NTRA6MGNTRA8 and NTRA6 determine C of MRA7RAAll can meet the supply transfer requirement, and sends the consent aggregation application and area to the MRA7Domain load priority McuThe MRA7 selects the NTRA6 with the higher zone load priority for transfer, closing switch s 7. The recovery process is as shown in fig. 4 (the mark of the regional proxy is omitted in the figure).
In the second stage, the NTRA8 receives the feedback feeder constraint related information from the FA1 and the FA2, and selects the balance degree C to be transferredRAThe larger FA2 gets the transshipment, closing switch s9, NTRA3 gets the transshipment from FA3, closing switch s 3. And the MRA7 and the NTRA6 form a microgrid, the microgrid is insufficient in supply, and the microgrid aggregation process is stopped. In the third phase, NRA7 gets transdonating from FA2, switch s8 is closed, NTRA2 gets transdonating from FA3, and switch s2 is closed. In the fourth phase, the NTRA5 obtains the FA3 transfer, the switch s5 is closed, and the NTRA1 receives the FA3 rejection transfer command. In the fifth phase, NTRA1 gets the de-energizing of FA3, closing switch s 1.
After recovery is finished, all power loss areas recover power supply, the total grid loss value is 237.6kW, the voltage of each node after recovery is as shown in figures 5-a, 5-b and 5-c, and the lowest voltage is 0.9156p.u, so that the voltage and current constraints are met, and the effectiveness of the method is verified. Time consuming and communication for each recovery phase of table 1.
TABLE 15G switching action, traffic and elapsed time per stage of the New recovery procedure
Figure BDA0003295869160000131
It can be found that, under the same network topology and the same fault location, if the optical fiber communication channel is adopted, the regional agents cannot directly communicate with the indirect superior feeder line agent, the whole process of obtaining the communication transferred by the indirect superior feeder line agent by the to-be-transferred regional agent needs at least one normal regional agent as a transfer, and the recovery process of the first stage is as shown in fig. 6. The end-to-end time delay of the optical fiber is set to be 2ms, and GOOSE messages and SV messages are adopted, so that the respective occupied capacities are 76 bytes and 169 bytes. The time consumption and traffic volume for each recovery phase are shown in table 2.
TABLE 2 switch action, traffic and time consumption per stage in the restoration of love of fiber optic situation
Figure BDA0003295869160000141
If the restoration scheme under the optical fiber is directly used under the 5G communication channel, the restoration process is completely the same as the restoration scheme under the optical fiber, and only different from the optical fiber restoration in time consumption and communication volume. The first phase recovery is also shown in FIG. 6, with the time consumption and traffic volume for each recovery phase shown in Table 3.
TABLE 35G switch action, traffic and elapsed time per stage of the welfare Requirements
Figure BDA0003295869160000142
Three methods were performed as shown in table 4.
TABLE 4 comparison of different recovery methods
Figure BDA0003295869160000143
The original multi-agent fault recovery method is limited by laying optical fibers, a lower-layer agent (regional agent) and an upper-layer agent (feeder agent) between different transformer substations cannot directly communicate, bidirectional information transfer (two directions of sending a message to the feeder agent by the regional agent to be transferred and sending a message to the regional agent to be transferred) needs to be carried out through one or more agents, the communication times between the agents are increased at each stage of recovery, further, the communication traffic is increased, the overall recovery process becomes complex, and the fault tolerance rate is reduced. If the original recovery method based on the optical fiber channel is directly used for the 5G communication channel, the defects of high time delay and sensitivity to communication traffic of the 5G communication are amplified, the recovery time is increased, and the total communication traffic is increased.
By adopting a multi-agent fault recovery technology applicable to 5G communication and utilizing the characteristic that end-to-end transmission can be carried out through IP in the 5G communication, an IP address of a regional agent to be transferred is directly attached to a message, only one-way transfer is needed in the recovery process (the regional agent to be transferred sends a message to a feeder line agent), the regional agent to be transferred can directly communicate with the feeder line agent when receiving the message, the communication times are obviously reduced, the influence of high delay of a 5G channel on recovery timeliness is further reduced, and lower recovery time consumption and communication traffic are achieved under the condition of the same recovery effect.
In the following, the power distribution network regional proxy power restoration device provided by the embodiment of the present invention is introduced, and the power distribution network regional proxy power restoration device described below and the power distribution network regional proxy power restoration method described above may be referred to in a corresponding manner.
Fig. 7 is a block diagram of a power distribution network regional proxy recovery power supply device according to an embodiment of the present invention, which is referred to as a second embodiment, where the power distribution network regional proxy recovery power supply device according to fig. 7 may include:
an adjacent confirmation module 110 for determining a regional agent of an adjacent feeder;
a request sending module 120, configured to send a re-provisioning request to a corresponding feeder agent through the regional agent;
a 5G communication module 130, configured to receive feeder constraint information sent by the feeder agent through a 5G channel;
a feeder determining module 140, configured to determine a target feeder agent according to the feeder constraint information;
the first handshake module 150 is configured to send dedicated acknowledgement information to the target feeder agent, and accept a transfer.
As a preferred embodiment, when there are a plurality of feeder agents, the 5G communication module 130 includes:
the complex receiving unit is used for receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel;
accordingly, the feeder determining module 140 includes:
a transfer determining unit, configured to determine, according to the feeder constraint information, a transfer balance degree corresponding to each feeder agent;
and the target feeder determining unit is used for determining the feeder agent with the maximum transfer balance degree as the target feeder.
The device for restoring power supply of the regional agent of the power distribution network comprises an adjacent confirmation module 110, a power supply module and a power supply module, wherein the adjacent confirmation module is used for confirming the regional agent of an adjacent feeder line; a request sending module 120, configured to send a re-provisioning request to a corresponding feeder agent through the regional agent; a 5G communication module 130, configured to receive feeder constraint information sent by the feeder agent through a 5G channel; a feeder determining module 140, configured to determine a target feeder agent according to the feeder constraint information; the first handshake module 150 is configured to send dedicated acknowledgement information to the target feeder agent, and accept a transfer. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
The power distribution network area proxy recovery power supply device of this embodiment is used to implement the foregoing power distribution network area proxy recovery power supply method, and thus a specific implementation manner of the power distribution network area proxy recovery power supply device may be seen in the foregoing embodiment portions of the power distribution network area proxy recovery power supply method, for example, the adjacent confirmation module 110, the request sending module 120, the 5G communication module 130, the feeder line determining module 140, and the first handshake module 150 are respectively used to implement steps S101, S102, S103, S104, and S105 in the foregoing power distribution network area proxy recovery power supply method, so that the specific implementation manner thereof may refer to descriptions of corresponding respective portion embodiments, and details are not repeated herein.
The core of the present invention is to provide a method for agent transfer of a feeder line of a distribution network, a flow diagram of a specific embodiment of which is shown in fig. 8, which is called a specific embodiment three, and includes:
s301: a transfer request is received.
As referred to above, the handover request is sent by the regional agent of the neighboring feeder, that is, the regional agent neighboring the regional agent of the pending handover on the feeder of the implementation body of the method.
S302: and determining the network address of the regional agent to be transferred according to the transfer request.
S303: and sending feeder line constraint information to the regional agent to be transferred through a 5G channel according to the network address.
S304: and after receiving the special supply confirmation information returned by the regional agent to be transferred, transferring the special supply confirmation information to the regional agent to be transferred.
As mentioned above, the dedicated acknowledgement may not be returned through the 5G channel, but may be returned through the same channel as the transfer request, and of course, the dedicated acknowledgement may be adjusted accordingly according to the actual situation.
In the present embodiment, the first embodiment is deduced from the perspective of the feeder agent, and please refer to the first embodiment in the foregoing, which is not described herein again.
The invention provides a power distribution network feeder line proxy transfer method, which comprises the steps of receiving a transfer request; determining the network address of the regional agent to be transferred according to the transfer request; sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address; and after receiving the special supply confirmation information returned by the regional agent to be transferred, transferring the special supply confirmation information to the regional agent to be transferred. In the prior art, due to the limitation of laying of optical fibers, a lower-layer agent (a regional agent) and an upper-layer agent (a feeder agent) between different substations (different feeders) cannot directly communicate, bidirectional transfer of information needs to be performed through one or more agents, the number of times of communication between the agents is increased at each stage of power restoration, further, the communication traffic is increased, the overall restoration process is complicated, and the fault tolerance rate is reduced. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
On the basis of the third embodiment, a fourth embodiment is obtained by further selecting a plurality of referral public areas for which a referral request is issued, and a flow diagram of the fourth embodiment is shown in fig. 9, and includes:
s401: a plurality of transfer requests are received.
S402: and determining the network address of each regional agent to be transferred and the corresponding regional load priority according to the plurality of transfer requests.
S403: and determining the region agent to be transferred with the highest region load priority as a target region agent.
S404: and sending the feeder constraint information to the target area agent through a 5G channel according to the network address.
S405: and after receiving the special supply confirmation information returned by the regional agent to be transferred, transferring the special supply confirmation information to the regional agent to be transferred.
In this embodiment, in consideration of the fact that there are a plurality of regional agents to be transferred to the same feeder agent for transfer, at this time, the regional agents to be transferred are sorted according to the preset regional load priority of the regional agents to be transferred, and the regional agent with the highest priority is selected for transfer, so that the influence caused by the fault of the power distribution network can be reduced to the greatest extent, and the working stability of the power distribution network is improved.
Further, as can be seen from the foregoing specific embodiment, there is a case where a plurality of feeder agents provide feeder constraint information to the same regional agent to be transferred, and in this case, the regional agent to be transferred can only select one feeder agent to be transferred, and then the remaining feeder agents do not receive feedback, so that after the sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address, the method further includes:
and after the feeder line constraint information is sent to the target area agent, under the condition that the dedicated supply confirmation information is not received after a first preset time, the target area agent is removed, the to-be-transferred area agent with the highest area load priority is determined as a new target area agent in the rest area agents, and the feeder line constraint information is sent to the new target area agent.
The first preset time can be set according to the actual situation, but is longer than the feedback time of the to-be-transferred regional agent in the normal state, if the special supply confirmation information is not received in the first preset time, the to-be-transferred regional agent is judged to have selected other feeder line agents, at this time, the feeder line agent searches a new target regional agent in other to-be-transferred regional agents with transfer requirements, and certainly, if the new target regional agent still does not reply after the first preset time, the new target regional agent needs to be continuously searched in the remaining to-be-transferred regional agents after being excluded until the to-be-transferred regional agent which gives feedback in the first preset time is found, or all the to-be-transferred regional agents are excluded.
In the following, the distribution network feeder proxy transfer device provided by the embodiment of the present invention is introduced, and the distribution network feeder proxy transfer device described below and the distribution network feeder proxy transfer method described above may be referred to in correspondence with each other.
Fig. 10 is a block diagram of a structure of a power distribution network feeder agent transfer device according to an embodiment of the present invention, which is referred to as a fifth embodiment, where, referring to fig. 10, the power distribution network feeder agent transfer device may include:
a receiving module 210, configured to receive a transfer request;
the website confirming module 220 is configured to determine a network address of the regional agent to be transferred according to the transfer request;
a constraint module 230, configured to send feeder constraint information to the to-be-transferred regional agent through a 5G channel according to the network address;
and the second handshake module 240 is configured to forward the special supply confirmation information returned by the to-be-forwarded regional agent to the to-be-forwarded regional agent.
In a preferred embodiment, when a plurality of the re-provisioning requests are received, the website confirmation module 220 includes:
a priority unit, configured to determine, according to the multiple transfer requests, a network address and a corresponding regional load priority of each regional agent to be transferred;
the target determining unit is used for determining the regional agent to be transferred with the highest regional load priority as a target regional agent;
accordingly, the constraint module 230 includes:
and the target constraint unit is used for sending the feeder constraint information to the target area agent through a 5G channel according to the network address.
As a preferred embodiment, the constraint module 230 further includes:
and the target switching unit is used for eliminating the target area agent under the condition that the dedicated supply confirmation information is not received after the feeder line constraint information is sent to the target area agent for a first preset time, determining the to-be-transferred area agent with the highest area load priority as a new target area agent in the rest area agents, and sending the feeder line constraint information to the new target area agent.
The device for the power distribution network feeder line proxy transfer provided by the invention comprises a receiving module 210, a transferring module and a transferring module, wherein the receiving module is used for receiving a transfer request; the website confirming module 220 is configured to determine a network address of the regional agent to be transferred according to the transfer request; a constraint module 230, configured to send feeder constraint information to the to-be-transferred regional agent through a 5G channel according to the network address; and the second handshake module 240 is configured to forward the special supply confirmation information returned by the to-be-forwarded regional agent to the to-be-forwarded regional agent. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
The distribution network feeder agent transfer device of this embodiment is used to implement the foregoing distribution network feeder agent transfer method, and therefore a specific implementation manner of the distribution network feeder agent transfer device may be found in the foregoing embodiment portions of the distribution network feeder agent transfer method, for example, the receiving module 210, the website confirming module 220, the constraining module 230, and the second handshaking module 240 are respectively used to implement steps S301, S302, S303, and S304 in the foregoing distribution network feeder agent transfer method, so that the specific implementation manner thereof may refer to descriptions of corresponding embodiments of each portion, and details are not described herein again.
A power distribution network fault recovery device comprising:
a memory for storing a computer program;
a processor for implementing the power distribution network area proxy power restoration method according to any one of the above and/or the power distribution network feeder proxy re-supply method according to any one of the above when executing the computer program. The invention provides a power distribution network regional agent power restoration method, which comprises the steps of determining regional agents of adjacent feeders; sending a transfer request to a corresponding feeder agent through the regional agent; receiving feeder constraint information sent by the feeder agent through a 5G channel; determining a target feeder agent according to the feeder constraint information; and sending special supply confirmation information to the target feeder line agent and receiving the transfer. In the prior art, due to the limitation of laying of optical fibers, a lower-layer agent (a regional agent) and an upper-layer agent (a feeder agent) between different substations (different feeders) cannot directly communicate, bidirectional transfer of information needs to be performed through one or more agents, the number of times of communication between the agents is increased at each stage of power restoration, further, the communication traffic is increased, the overall restoration process is complicated, and the fault tolerance rate is reduced. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
A computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the distribution network area proxy restoration method as in any one of the above and/or the distribution network feeder proxy re-provisioning method as in any one of the above. The invention provides a power distribution network regional agent power restoration method, which comprises the steps of determining regional agents of adjacent feeders; sending a transfer request to a corresponding feeder agent through the regional agent; receiving feeder constraint information sent by the feeder agent through a 5G channel; determining a target feeder agent according to the feeder constraint information; and sending special supply confirmation information to the target feeder line agent and receiving the transfer. In the prior art, due to the limitation of laying of optical fibers, a lower-layer agent (a regional agent) and an upper-layer agent (a feeder agent) between different substations (different feeders) cannot directly communicate, bidirectional transfer of information needs to be performed through one or more agents, the number of times of communication between the agents is increased at each stage of power restoration, further, the communication traffic is increased, the overall restoration process is complicated, and the fault tolerance rate is reduced. The invention directly replaces the optical fiber with the 5G communication channel, utilizes the characteristic that the end-to-end transmission can be carried out through the network address in the 5G communication, only needs one-way transfer in the recovery process, can realize the direct communication with the feeder line agent when the feeder line constraint information is received by the to-be-transferred regional agent, obviously reduces the communication times, further shortens the recovery time consumption, reduces the communication traffic, avoids laying a large number of optical fibers and obviously reduces the cost.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The power distribution network regional agent restoration power supply method and device, the power distribution network feeder line agent transfer method and device, the power distribution network fault restoration equipment and the computer readable storage medium provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. A power distribution network regional agent power restoration method is characterized by comprising the following steps:
determining a regional agent of an adjacent feeder;
sending a transfer request to a corresponding feeder agent through the regional agent;
receiving feeder constraint information sent by the feeder agent through a 5G channel;
determining a target feeder agent according to the feeder constraint information;
and sending special supply confirmation information to the target feeder line agent and receiving the transfer.
2. The method for restoring power to a distribution network area agent of claim 1, wherein when there are a plurality of feeder agents, said receiving feeder constraint information sent by said feeder agents over a 5G channel comprises:
receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel;
accordingly, the determining a target feeder according to the feeder constraint information comprises:
determining a transfer balance degree corresponding to each feeder line agent according to the plurality of feeder line constraint information;
and determining the feeder agent with the maximum transfer balance degree as a target feeder.
3. A regional agent of distribution network resumes power supply unit, its characterized in that includes:
the adjacent confirmation module is used for determining the area agent of the adjacent feeder line;
the request sending module is used for sending a transfer request to the corresponding feeder line agent through the regional agent;
the 5G communication module is used for receiving feeder constraint information sent by the feeder agent through a 5G channel;
the feeder line determining module is used for determining a target feeder line agent according to the feeder line constraint information;
and the first handshake module is used for sending the special supply confirmation information to the target feeder line agent and receiving the transfer supply.
4. The distribution network area agent recovery power supply of claim 3, wherein when there are a plurality of feeder agents, the 5G communication module comprises:
the complex receiving unit is used for receiving feeder constraint information sent by a plurality of feeder agents through a 5G channel;
accordingly, the feeder determination module comprises:
a transfer determining unit, configured to determine, according to the feeder constraint information, a transfer balance degree corresponding to each feeder agent;
and the target feeder determining unit is used for determining the feeder agent with the maximum transfer balance degree as the target feeder.
5. A power distribution network feeder agent transfer method is characterized by comprising the following steps:
receiving a transfer request;
determining the network address of the regional agent to be transferred according to the transfer request;
sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address;
and after receiving the special supply confirmation information returned by the regional agent to be transferred, transferring the special supply confirmation information to the regional agent to be transferred.
6. The distribution network feeder agent transfer method of claim 5, wherein when a plurality of transfer requests are received, the determining the network address of the regional agent to be transferred according to the transfer requests comprises:
determining the network address of each regional agent to be transferred and the corresponding regional load priority according to the plurality of transfer requests;
determining the region agent to be transferred with the highest regional load priority as a target region agent;
correspondingly, the sending feeder constraint information to the to-be-transferred regional agent through the 5G channel according to the network address includes:
and sending the feeder constraint information to the target area agent through a 5G channel according to the network address.
7. The distribution network feeder agent transfer method of claim 6, wherein after the sending feeder constraint information to the to-be-transferred regional agent over a 5G channel according to the network address, further comprising:
and after the feeder line constraint information is sent to the target area agent, under the condition that the dedicated supply confirmation information is not received after a first preset time, the target area agent is removed, the to-be-transferred area agent with the highest area load priority is determined as a new target area agent in the rest area agents, and the feeder line constraint information is sent to the new target area agent.
8. The utility model provides a distribution network feeder is agent to be transferred and is supplied device which characterized in that includes:
the receiving module is used for receiving a transfer request;
the website confirming module is used for confirming the network address of the regional agent to be transferred according to the transfer request;
the constraint module is used for sending feeder constraint information to the regional agent to be transferred through a 5G channel according to the network address;
and the second handshake module is used for transferring the special supply confirmation information returned by the regional agent to be transferred to the regional agent to be transferred.
9. A power distribution network fault recovery device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the power distribution network area proxy restoration power supply method according to any one of claims 1 to 2 and/or the power distribution network feeder proxy transfer method according to any one of claims 5 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the power distribution network area proxy restoration power supply method according to any one of claims 1 to 2 and/or the power distribution network feeder proxy transfer method according to any one of claims 5 to 7.
CN202111177458.0A 2021-10-09 2021-10-09 Power distribution network regional agent power restoration method and power distribution network feeder line agent power transfer method Pending CN113708372A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102037630A (en) * 2008-07-21 2011-04-27 Abb研究有限公司 Feeder automation system and method for operating the same
CN102270837A (en) * 2011-07-28 2011-12-07 南京航空航天大学 Network failure reconstruction method suitable for airplane distributed distribution system
CN102290799A (en) * 2011-08-11 2011-12-21 中国电力科学研究院 Small-scale quick recovery method for power supply of power distribution network in open loop running
CN107453353A (en) * 2017-07-18 2017-12-08 广东双新电气科技有限公司 A kind of fault recovery method containing distributed power distribution network based on multi-agent system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102037630A (en) * 2008-07-21 2011-04-27 Abb研究有限公司 Feeder automation system and method for operating the same
CN102270837A (en) * 2011-07-28 2011-12-07 南京航空航天大学 Network failure reconstruction method suitable for airplane distributed distribution system
CN102290799A (en) * 2011-08-11 2011-12-21 中国电力科学研究院 Small-scale quick recovery method for power supply of power distribution network in open loop running
CN107453353A (en) * 2017-07-18 2017-12-08 广东双新电气科技有限公司 A kind of fault recovery method containing distributed power distribution network based on multi-agent system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘林 等: "面向电力物联网新业务的电力通信网需求及发展趋势", 《电网技术》, vol. 44, no. 8, 19 May 2020 (2020-05-19), pages 3114 - 3128 *
董志辉 等: "基于多代理技术的有源配电网供电恢复策略", 《电力自动化设备》, vol. 39, no. 5, 8 May 2019 (2019-05-08), pages 22 - 29 *

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