A main station self-recovery method and device integrating main and distribution

Abstract

The application discloses a kind of main station self-healing method and device of main integration, its method includes: obtaining the basic information of self-healing feeder group in main station system of distribution network and main network, based on the basic information, construct self-healing tree structure data, switch in the self-healing tree structure data is marked as non-locking flag, whether all switches on the associated power supply path branch upstream of the fault point in the basic information exist non-locking flag is judged, if not, determine all switches on the associated power supply path branch as locking flag, complete all marks, if yes, then close all switches in the self-healing tree structure data, complete self-healing power supply.The technical problem that the abnormality of existing distribution network self-healing technology, failure and load condition of main network equipment can not be considered to cause self-healing failure even expand blackout range is solved, and the power supply reliability of distribution network is improved.

Description

Technical Field

[0001] This invention relates to the technical field of distribution network self-healing, and in particular to a self-healing method and device for an integrated main and distribution substation. Background Technology

[0002] Existing distribution network self-healing technologies only utilize the power grid anomalies and faults monitored by the distribution network dispatching master station automation system to output power grid adjustment strategies. With little or no human intervention, they use controllable equipment in the distribution network to adjust the power grid structure and eliminate the impact of anomalies or faults in the distribution network system. However, they do not take into account the anomalies, faults, and load conditions of the main grid equipment. The provided power transfer strategies may cause self-healing failure or even expand the scope of power outages, which may have adverse effects on the entire power grid system.

[0003] Therefore, in order to improve the power supply reliability of the distribution network and solve the technical problem that the existing distribution network self-healing technology does not take into account the abnormality, fault and load conditions of the main network equipment, which may lead to self-healing failure or even expand the scope of power outage, it is urgent to build a distribution network self-healing method. Summary of the Invention

[0004] This invention provides a self-healing method and device for a main distribution station that integrates main and distribution equipment, solving the technical problem that existing distribution network self-healing technologies do not consider the abnormalities, faults, and load conditions of the main network equipment, which may lead to self-healing failure or even expand the scope of power outage.

[0005] In a first aspect, the present invention provides a self-healing method for a master station integrating master and slave stations, comprising:

[0006] Obtain basic information about the self-healing feeder group in the distribution network and main network station system;

[0007] Based on the aforementioned basic information, construct the self-healing tree structure data;

[0008] Mark the switch of the self-healing tree structure data as a non-locking flag;

[0009] Determine whether any switches on the associated power transfer path branch upstream of the fault point in the basic information have a non-blocking flag; if not, determine that all switches on the associated power transfer path branch have a blocking flag and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer.

[0010] Optionally, the basic information includes load point information and disconnector information; before constructing the self-healing tree structure data based on the basic information, it also includes:

[0011] The load point in the basic information is set as a node, and the node is isolated from the disconnecting switch to obtain the isolated fault segment.

[0012] Optionally, the basic information also includes information on disconnecting switches downstream of the fault point, information on power transfer switches for related lines, information on end switches of branch lines, and information on switches participating in self-healing; based on the basic information, a self-healing tree structure data is constructed, including:

[0013] The disconnect switch downstream of the fault point is set as the root node, and the related line transfer switch and the end switch of the branch line are set as leaf nodes.

[0014] Based on the root node and the leaf nodes, and in conjunction with the switches participating in self-healing, the self-healing tree structure data is constructed.

[0015] Optionally, the basic information also includes line voltage data, line current data, line protection action record data, and switch closing status data; determining whether all switches on the associated power transfer path branch upstream of the fault point in the basic information have a non-blocking flag; if not, determining that all switches on the associated power transfer path branch have a blocking flag, completing all marking; if yes, closing all switches in the self-healing tree structure data, completing self-healing power transfer, including:

[0016] Determine whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions;

[0017] If not, then determine that there is no non-blocking mark on the switch on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking;

[0018] If so, then determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

[0019] Secondly, the present invention provides a master station self-healing device integrating master and slave stations, comprising:

[0020] The acquisition module is used to acquire basic information about the self-healing feeder groups in the distribution network and main network master station system;

[0021] A construction module is used to construct self-healing tree structure data based on the aforementioned basic information;

[0022] The marking module is used to mark the switch of the self-healing tree structure data as a non-locking flag;

[0023] The judgment module is used to determine whether there are non-blocking flags on all switches on the associated power transfer path branch upstream of the fault point in the basic information; if not, determine that all switches on the associated power transfer path branch are blocked, and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer.

[0024] Optionally, the device further includes:

[0025] An isolation module is used to set the load points in the basic information as nodes, and to isolate the fault segments from the nodes toward the disconnecting switch.

[0026] Optionally, the basic information also includes information on disconnecting switches downstream of the fault point, information on power transfer switches for related lines, information on end switches of branch lines, and information on switches participating in self-healing; the construction module includes:

[0027] The configuration submodule is used to set the disconnect switch downstream of the fault point as the root node, and to set the related line transfer switch and the end switch of the branch line as leaf nodes.

[0028] A submodule is constructed to build the self-healing tree structure data based on the root node and the leaf nodes, combined with the switches participating in self-healing.

[0029] Optionally, the basic information further includes line voltage data, line current data, line protection action record data, and switch closing status data; the judgment module includes:

[0030] The judgment submodule is used to determine whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions; if not, the confirmation submodule is executed; if yes, the closing submodule is executed.

[0031] The confirmation submodule is used to determine that there are no non-blocking flags on the switches on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking;

[0032] The closing submodule is used to determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

[0033] Thirdly, this application provides an electronic device including a processor and a memory, the memory storing computer-readable instructions that, when executed by the processor, perform the steps of the method provided in the first aspect above.

[0034] Fourthly, this application provides a storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the method provided in the first aspect above.

[0035] As can be seen from the above technical solutions, the present invention has the following advantages: The present invention provides a self-healing method for a main distribution station that integrates main and distribution systems. By acquiring the basic information of the self-healing feeder groups in the distribution network and main network station system, and constructing self-healing tree structure data based on the basic information, the switches in the self-healing tree structure data are marked as non-blocking flags. It is determined whether all switches on the associated power transfer path branches upstream of the fault point in the basic information have non-blocking flags. If not, all switches on the associated power transfer path branches are determined to be blocking flags, and all markings are completed. If yes, all switches in the self-healing tree structure data are closed to complete the self-healing power transfer. Through a self-healing method for a main distribution station that integrates main and distribution systems, the present invention solves the technical problem that the existing distribution network self-healing technology does not consider the abnormality, fault, and load conditions of the main network equipment, which may lead to self-healing failure or even expansion of the power outage range. It avoids the risk of power grid operation caused by main network equipment failure and heavy overload, minimizes the impact of faults on the entire power grid system, and improves the power supply reliability of the distribution network. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a flowchart illustrating the steps of a first embodiment of the master station self-healing method integrating master and distribution according to the present invention.

[0038] Figure 2 This is a flowchart illustrating the steps of a second embodiment of the self-healing method for a master station integrating master and distribution according to the present invention.

[0039] Figure 3 This is a structural block diagram of an embodiment of the self-healing device for a master station integrating master and slave stations according to the present invention. Detailed Implementation

[0040] This invention provides a self-healing method and apparatus for a main distribution station that integrates main and distribution equipment, in order to solve the technical problem that existing distribution network self-healing technologies do not take into account the abnormalities, faults, and load conditions of the main network equipment, which may lead to self-healing failure or even expand the scope of power outage.

[0041] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] Example 1, please refer to Figure 1 , Figure 1 This is a flowchart illustrating the steps of a first embodiment of the master-distributor integrated self-healing method for the present invention, including:

[0043] Step S101: Obtain basic information about the self-healing feeder group in the distribution network and main network station system;

[0044] In this embodiment of the invention, basic information of the self-healing feeder group in the distribution network and main network station system is obtained. The basic information includes load point information and disconnecting switch information, disconnecting switch information downstream of the fault point, related line transfer switch information, end switch information of branch lines and switch information participating in self-healing, line voltage data, line current data, line protection action record data and switch closing status data.

[0045] Step S102: Based on the basic information, construct the self-healing tree structure data;

[0046] In this embodiment of the invention, the disconnecting switch downstream of the fault point is set as the root node, and the related line transfer switch and the end switch of the branch line are set as leaf nodes. Based on the root node and the leaf nodes, and in combination with the switches participating in self-healing, the self-healing tree structure data is constructed.

[0047] Step S103: Mark the switch of the self-healing tree structure data as a non-locking flag;

[0048] Step S104: Determine whether there are non-blocking flags on all switches on the associated power transfer path branch upstream of the fault point in the basic information; if not, determine that all switches on the associated power transfer path branch are blocked, and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer.

[0049] In this embodiment of the invention, it is determined whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions. If not, it is determined that the switches on the associated power transfer path branch upstream of the fault point in the basic information do not have non-blocking flags, and all switches on the associated power transfer path branch are confirmed to have blocking flags, thus completing all marking. If yes, it is determined that the switches on the associated power transfer path branch upstream of the fault point in the basic information do not have non-blocking flags, and all switches in the self-healing tree structure data are closed, thus completing self-healing power transfer.

[0050] The self-healing method for a main distribution substation provided in this embodiment of the invention obtains basic information of the self-healing feeder group in the distribution network and main network substation system. Based on the basic information, a self-healing tree structure data is constructed. The switches in the self-healing tree structure data are marked as non-blocking flags. It is determined whether all switches on the associated power transfer path branch upstream of the fault point in the basic information have non-blocking flags. If not, all switches on the associated power transfer path branch are marked as blocking flags, and all markings are completed. If yes, all switches in the self-healing tree structure data are closed to complete the self-healing power transfer. This distribution network self-healing method solves the technical problem that existing distribution network self-healing technologies do not consider the abnormality, fault, and load conditions of the main network equipment, which may lead to self-healing failure or even expansion of the power outage range. It avoids the risk of power grid operation caused by main network equipment failure and heavy overload, minimizes the impact of faults on the entire power grid system, and improves the power supply reliability of the distribution network.

[0051] Example 2, please refer to Figure 2 , Figure 2 The flowchart of a master-distributor integrated self-healing method for a master station according to the present invention includes:

[0052] Step S201: Obtain basic information about the self-healing feeder group in the distribution network and main network station system;

[0053] In this embodiment of the invention, fault information of the distribution network regional protection system and line structure information of the distribution network are obtained. Basic information of the self-healing feeder group in the distribution network and main network station system is obtained. The basic information includes load point information and disconnecting switch information, disconnecting switch information downstream of the fault point, related line transfer switch information, end switch information of branch line and switch information participating in self-healing, line voltage data, line current data, line protection action record data and switch closing status data.

[0054] In practice, the electrical equipment connection relationships of the self-healing feeder group are obtained from the distribution network and main grid substation system. The upstream 10kV busbars, main transformers, 110kV / 220kV busbars, and 110kV / 220kV line equipment of the feeder group are searched. The rated current of each node switch in the feeder group is obtained (at least including the rated current I of each 10kV feeder switch within the group). fe Rated current I of the interconnecting switch le This system acquires remotely measured voltage and current values ​​from the distribution network terminals within the feeder group, as well as the 110kV bus voltage, main transformer load value, 10kV bus voltage, and 400V bus voltage remotely measured values ​​within the station, protection action signals, load point information, disconnector information, downstream disconnector information, related line transfer switch information, branch line end switch information, and switch information participating in self-healing, line voltage data, line current data, line protection action record data, and switch closing status data.

[0055] Step S202: Set the disconnecting switch downstream of the fault point in the basic information as the root node, and set the relevant line transfer switch and the end switch of the branch line in the basic information as leaf nodes.

[0056] In one optional embodiment, before constructing the self-healing tree structure data based on the basic information, the method further includes:

[0057] The load point in the basic information is set as a node, and the node is isolated from the disconnecting switch to obtain the isolated fault segment.

[0058] In this embodiment of the invention, the fault segment is first isolated by setting the load point in the basic information as a node, and then isolating the fault segment from the node towards the disconnecting switch. Next, the disconnecting switch downstream of the fault point is set as the root node, and the current I at that root node before the fault is recorded. r0 And set the relevant line transfer switch and the end switch of the branch line as leaf nodes.

[0059] Step S203: Based on the root node and the leaf node, and combined with the switches involved in self-healing in the basic information, construct self-healing tree structure data;

[0060] In this embodiment of the invention, the root node, the leaf nodes, and the switches that may participate in self-healing are organized into a self-healing tree structure. The open-loop point is defined as the tie switch, and the latest current I of the 10kV feeder switch on the transfer side is recorded. f Record the real-time apparent power S of the main transformer in the substation on the power supply side. t0 .

[0061] Step S204: Mark the switch of the self-healing tree structure data as a non-locking flag;

[0062] In this embodiment of the invention, the switch that marks the self-healing tree structure data is the non-locking flag FALSE.

[0063] Step S205: Determine whether the line voltage data, line current data, line protection action record data, and switch closing status data in the basic information all meet the preset non-blocking conditions;

[0064] In this embodiment of the invention, the line voltage data, the line current data, the line protection action record data, and the switch closing status data are extracted from the basic information, and it is determined whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions.

[0065] In practice, searching upstream of the fault point reveals the following: if the 110kV / 220kV line voltage is normal, the 110kV / 220kV bus voltage is normal, the main transformer's real-time load value is less than its rated capacity, the 10kV bus voltage is normal, the substation's 400V bus voltage is normal, there are no main transformer protection actions, no 110kV / 220kV line protection action records, and both the main transformer's high / low voltage switches are in the closed position, and the root node current I... r0 +Feeder switch latest current I f <= Rated current of feeder switch I fe And the root node current I r0 The converted power S r0 +Main transformer real-time apparent power S t0 <= Rated capacity of main transformer S e If the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions.

[0066] Search upstream of the fault point. If the 110kV / 220kV line voltage is abnormal, or the 110kV / 220kV bus voltage is abnormal, or the real-time load value of the main transformer is greater than or equal to the rated capacity, or the 10kV bus voltage is abnormal, or the 400V bus voltage value within the station is abnormal, or the main transformer protection is activated, the 110kV / 220kV line protection is activated, or the main transformer high-voltage and low-voltage switches are in the open position, or the root node current I... r0 +Feeder switch latest current I f >Feeder switch rated current I fe , or root node current I r0 The converted power S r0 +Main transformer real-time apparent power S t0 Main transformer rated capacity Se If any of the above conditions are met, it means that the line voltage data, the line current data, the line protection action record data, and the switch closing status data do not all meet the preset non-blocking conditions.

[0067] Step S206: If not, determine that there is no non-blocking mark on the switch on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking;

[0068] In this embodiment of the invention, when the line voltage data, the line current data, the line protection action record data, and the switch closing status data do not all meet the preset non-blocking conditions, it is determined that the switches on the associated power supply path branch upstream of the fault point in the basic information do not have non-blocking flags, and all switches on the associated power supply path branch are confirmed to have blocking flags, thus completing all marking.

[0069] Step S207: If yes, then determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

[0070] In this embodiment of the invention, when the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions, it is determined that the switch on the associated power transfer path branch upstream of the fault point in the basic information does not have a non-blocking flag, and all switches in the self-healing tree structure data are closed to complete the self-healing power transfer.

[0071] The self-healing method for a main distribution substation provided in this embodiment of the invention obtains basic information of the self-healing feeder group in the distribution network and main network substation system. Based on the basic information, a self-healing tree structure data is constructed. The switches in the self-healing tree structure data are marked as non-blocking flags. It is determined whether all switches on the associated power transfer path branch upstream of the fault point in the basic information have non-blocking flags. If not, all switches on the associated power transfer path branch are marked as blocking flags, and all markings are completed. If yes, all switches in the self-healing tree structure data are closed to complete the self-healing power transfer. This distribution network self-healing method solves the technical problem that existing distribution network self-healing technologies do not consider the abnormality, fault, and load conditions of the main network equipment, which may lead to self-healing failure or even expansion of the power outage range. It avoids the risk of power grid operation caused by main network equipment failure and heavy overload, minimizes the impact of faults on the entire power grid system, and improves the power supply reliability of the distribution network.

[0072] Please see Figure 3 , Figure 3This is a structural block diagram of an embodiment of the master-distributor integrated self-healing device of the present invention, comprising:

[0073] The acquisition module 301 is used to acquire basic information of the self-healing feeder group in the distribution network and main network station system.

[0074] Construction module 302 is used to construct self-healing tree structure data based on the basic information;

[0075] The marking module 303 is used to mark the switch of the self-healing tree structure data as a non-locking flag;

[0076] The judgment module 304 is used to determine whether there are non-blocking flags on all switches on the associated power transfer path branch upstream of the fault point in the basic information; if not, determine that all switches on the associated power transfer path branch are blocked, and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer.

[0077] In an optional embodiment, the apparatus further includes:

[0078] An isolation module is used to set the load points in the basic information as nodes, and to isolate the fault segments from the nodes toward the disconnecting switch.

[0079] In an optional embodiment, the basic information further includes information on disconnecting switches downstream of the fault point, information on related line transfer switches, information on the end switches of branch lines, and information on switches participating in self-healing; the construction module 302 includes:

[0080] The configuration submodule is used to set the disconnect switch downstream of the fault point as the root node, and to set the related line transfer switch and the end switch of the branch line as leaf nodes.

[0081] A submodule is constructed to build the self-healing tree structure data based on the root node and the leaf nodes, combined with the switches participating in self-healing.

[0082] In an optional embodiment, the basic information further includes line voltage data, line current data, line protection action record data, and switch closing status data; the judgment module 304 includes:

[0083] The judgment submodule is used to determine whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions; if not, the confirmation submodule is executed; if yes, the closing submodule is executed.

[0084] The confirmation submodule is used to determine that there are no non-blocking flags on the switches on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking;

[0085] The closing submodule is used to determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

[0086] This invention also provides an electronic device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the master-slave integrated self-healing method as described in any of the above embodiments.

[0087] This invention also provides a computer storage medium storing a computer program thereon, which, when executed by the processor, implements the steps of the master-slave integrated self-healing method as described in any of the above embodiments.

[0088] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0089] In the several embodiments provided in this application, it should be understood that the methods, apparatuses, electronic devices, and storage media disclosed in this invention can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0090] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0091] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0092] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0093] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-healing method for a master station integrating master and slave stations, characterized in that, include: Obtain basic information about the self-healing feeder group in the distribution network and main network station system; Based on the aforementioned basic information, construct the self-healing tree structure data; Mark the switch of the self-healing tree structure data as a non-locking flag; Determine whether there are non-blocking flags on all switches on the associated power transfer path branch upstream of the fault point in the basic information; if not, determine that all switches on the associated power transfer path branch are blocked, and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer. The basic information also includes information on disconnecting switches downstream of the fault point, information on power transfer switches for related lines, information on end switches of branch lines, and information on switches involved in self-healing. Based on the aforementioned basic information, a self-healing tree structure data is constructed, including: The disconnect switch downstream of the fault point is set as the root node, and the related line transfer switch and the end switch of the branch line are set as leaf nodes. Based on the root node and the leaf nodes, and combined with the switches participating in self-healing, the self-healing tree structure data is constructed. The basic information also includes line voltage data, line current data, line protection action record data, and switch closing status data; it determines whether all switches on the associated power transfer path branch upstream of the fault point in the basic information have a non-blocking flag; if not, it determines that all switches on the associated power transfer path branch have a blocking flag, completing all marking; if so, it closes all switches in the self-healing tree structure data to complete self-healing power transfer, including: Determine whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions; If not, then determine that there is no non-blocking mark on the switch on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking; If so, then determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

2. The self-healing method for integrated master and slave stations according to claim 1, characterized in that, The basic information includes load point information and disconnector switch information; Before constructing the self-healing tree structure data based on the aforementioned basic information, the following steps are also included: The load point in the basic information is set as a node, and the node is isolated from the disconnecting switch to obtain the isolated fault segment.

3. A self-healing device for a master station integrating main and auxiliary power supply, characterized in that, include: The acquisition module is used to acquire basic information about the self-healing feeder groups in the distribution network and main network master station system; A construction module is used to construct self-healing tree structure data based on the aforementioned basic information; The marking module is used to mark the switch of the self-healing tree structure data as a non-locking flag; The judgment module is used to determine whether there are non-blocking flags on all switches on the associated power transfer path branch upstream of the fault point in the basic information; if not, determine that all switches on the associated power transfer path branch are blocked, and complete all marking; if yes, close all switches in the self-healing tree structure data to complete self-healing power transfer. The basic information also includes information on disconnecting switches downstream of the fault point, information on power transfer switches for related lines, information on end switches of branch lines, and information on switches involved in self-healing. The building module includes: The configuration submodule is used to set the disconnect switch downstream of the fault point as the root node, and to set the related line transfer switch and the end switch of the branch line as leaf nodes. A submodule is constructed to build the self-healing tree structure data based on the root node and the leaf nodes, combined with the switches participating in self-healing; The basic information also includes line voltage data, line current data, line protection action record data, and switch closing status data; the judgment module includes: The judgment submodule is used to determine whether the line voltage data, the line current data, the line protection action record data, and the switch closing status data all meet the preset non-blocking conditions; if not, the confirmation submodule is executed; if yes, the closing submodule is executed. The confirmation submodule is used to determine that there are no non-blocking flags on the switches on the associated power transfer path branch upstream of the fault point in the basic information, confirm that all switches on the associated power transfer path branch are blocked, and complete all marking; The closing submodule is used to determine that there is no non-blocking flag on the switch on the associated power transfer path branch upstream of the fault point in the basic information, close all switches in the self-healing tree structure data, and complete the self-healing power transfer.

4. The self-healing device for integrated main and auxiliary power stations according to claim 3, characterized in that, The device further includes: An isolation module is used to set the load points in the basic information as nodes, and to isolate the fault segments from the nodes toward the disconnecting switch.

5. An electronic device, characterized in that, It includes a processor and a memory, the memory storing computer-readable instructions that, when executed by the processor, perform the method as described in any one of claims 1-2.

6. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it performs the method as described in any one of claims 1-2.

Images