Medium-voltage bus fault self-healing and transformer substation fault batch transfer method and system

Abstract

The invention discloses a medium-voltage bus fault self-healing and transformer substation fault batch transfer method and system, and the method comprises the steps: opening a transformer substation fault batch transfer human-computer interface, sending a transformer substation scheme generation request to a target plant station to obtain associated load information, carrying out the real-time topology analysis, and carrying out the real-time topology analysis; performing transformer substation filtering prohibition scheme and transformer substation scheme priority ranking on the power transfer and power recovery scheme, storing scheme data into a database, and sending a processing ending message to a transformer substation batch power transfer human-computer interface; performing responsibility area permission verification, user login permission verification and operation locking permission verification on the user login instruction of the transformer substation; on the basis of a transformer substation fault batch transfer human-computer interface, transformer substation transfer scheme editing, transformer substation transfer scheme verification, transformer substation transfer scheme execution, transformer substation operation mode recovery and transformer substation history query are carried out on the obtained transfer scheme of a target plant station in a responsibility area, and a medium-voltage bus fault self-healing model is combined; and medium-voltage bus fault self-healing and transformer substation fault batch transfer are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of power distribution automation of electric power systems, and relates to a method and system for self-healing of medium-voltage bus faults and batch power transfer of transformer substation faults. Background Art

[0002] The current distribution network-related fault isolation and power transfer and restoration methods are generally aimed at small-scale disturbances such as feeder faults. When natural disasters, external force damage and other reasons cause the collapse of transmission lines or maintenance failures, one or more busbars will lose pressure or even the entire substation will be out of power. At this time, it may not be possible to ensure that all depressurized busbars or power outage plants are restored to power, which will cause long-distance and long-term power outages in large areas of the distribution network, and the stability of distribution network operation cannot be guaranteed, seriously affecting customer experience.

[0003] In order to ensure the normal operation of the non-fault area of ​​the distribution network, it is necessary to locate and isolate the faulty area as soon as possible, and restore power supply to the faulty area as soon as possible in a short period of time. However, the current regional large-scale power outages still have problems such as difficulty in manually discovering faults, time-consuming emergency response, poor accuracy and intuitiveness, etc. It is difficult to ensure the timely perception of large-scale power outages in the distribution network and the timeliness requirements of rapid power restoration. Emergency response is very passive, faults cannot be automatically perceived in real time, manual response takes a long time, and accuracy is poor, which will lead to excessive power outages, a poor experience for residents, poor customer satisfaction for power supply companies, and low ability to resist power outage risks, which seriously affects the safe and stable operation of the distribution network.

[0004] Prior art document 1 (CN 117096850A) discloses a method and system for automatic sensing and rapid self-healing of medium-voltage busbar undervoltage faults. However, its shortcoming is that it only handles medium-voltage busbar undervoltage faults immediately, and lacks a contingency plan and self-healing mechanism for the entire substation fault. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a method and system for medium-voltage busbar fault self-healing and substation fault batch power transfer, which can realize accurate identification, active perception, emergency plan disposal and rapid power restoration for large-area and large-scale busbar or substation power outage faults, and thus complete the whole process of fault self-healing. It can effectively prevent large-scale power outages in the distribution network, reduce manpower and material resources, greatly shorten the power outage time, reduce the fault handling time from hours to minutes, greatly reduce the operation time, greatly improve the power supply reliability, greatly improve the risk handling efficiency, reduce the pressure on the dispatching personnel, and ensure the safe and stable operation of the power grid.

[0006] The present invention adopts the following technical solution.

[0007] The first aspect of the present invention provides a medium voltage bus fault self-healing and substation fault batch power transfer method, comprising:

[0008] Step 1: Open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan;

[0009] Step 2: After filtering and prohibiting the substation power supply restoration plan obtained in step 1 and sorting the substation plan priority, the plan data is stored in the database, and a processing end message is sent to the substation batch power supply human-machine interface;

[0010] Step 3: After sending the processing completion message to the substation batch transfer human-machine interface in step 2, the substation user login instruction is verified for the responsibility area authority and the substation user login authority, the plant station information within the responsibility area of ​​the login user is obtained, and the transfer plan of the target plant station within the responsibility area is obtained;

[0011] Step 4: Verify the target plant operation blocking authority. After the authority verification is successful, based on the substation failure batch transfer human-machine interface, the operation instructions of the transfer plan of the target plant in the responsibility area obtained in step 3 are used to edit the substation transfer plan, verify the substation transfer plan, execute the substation transfer plan, restore the substation operation mode, and query the substation history, so as to build a substation failure batch transfer model;

[0012] Step 5: Automatically sense the medium-voltage busbar undervoltage fault according to the medium-voltage busbar undervoltage fault judgment criterion, obtain the medium-voltage busbar power transfer plan through real-time topology analysis, call the medium-voltage busbar power transfer and restoration plan based on the medium-voltage busbar human-machine operation interface, and build a medium-voltage busbar fault self-healing model;

[0013] Step 6: Combine the medium-voltage bus fault self-healing model obtained in step 5 with the substation fault batch transfer model obtained in step 4 to build a distribution network fault handling model to achieve medium-voltage bus failure self-healing and substation fault batch transfer.

[0014] Preferably, in step 1, the substation solution generation request includes a whole station solution generation request, a line solution generation request and a bus solution generation request, specifically including:

[0015] The whole station solution generation request is triggered by clicking the right-click menu on the human-machine interface. The whole station solution generation request is sent to the server-side fault analysis processing program. The fault analysis processing program obtains the whole station associated load information through the table information.

[0016] The line plan generation request is triggered by clicking the right-click menu on the human-machine interface. The line plan generation request is sent to the server-side fault analysis processing program, and the fault analysis processing program directly obtains the line-related load information;

[0017] The bus scheme generation request is triggered by clicking the right-click menu on the human-machine interface, and the bus scheme generation request is sent to the server-side fault analysis processing program. The fault analysis processing program obtains the bus-related load information through the table information.

[0018] Preferably, in step 1, the topology service generates a real-time topology solution according to the associated load, specifically including:

[0019] According to the model topological connection relationship of the line, the main grid load node obtained under the current operation mode is analyzed according to the switch status as the starting point of this side. Starting from the main grid load node, the power supply point on the opposite side is searched, and from the opposite power supply point, it is traced back to the starting point of the search to obtain the transfer path from this side to the opposite side, form a transfer plan, traverse the transfer plan, analyze all the transfer plans of the line, obtain the information of the power supply point on the opposite side, and according to the information of the power supply point to which the plant and bus belong, analyze whether the line to be transferred and the line of the opposite power breakpoint belong to the same plant and bus, filter the transfer plans of the same substation, the same bus and the opposite voltage zero. After completing the plan filtering, all the switch paths to be transferred are obtained, and the trunk paths of the lines on the to-be-transferred side and the borrowed side at both ends of each transfer switch are analyzed. The outgoing line circuit breaker in the station to be transferred is used as the control and distribution equipment, and the transfer switch is used as the control and closing equipment to give a complete transfer plan for the line.

[0020] Preferably, in step 2, the substation prohibits power transfer safety verification rules, specifically including:

[0021] Check whether the contact switch of the power transfer and restoration plan has a signboard with prohibited operation attributes. If the contact switch of the power transfer plan has a signboard, filter the plan;

[0022] Check whether there is an abnormal protection status in the transfer path of the power transfer and restoration plan, and filter the plan if there is an abnormal protection status.

[0023] Preferably, in step 2, if there are two or more schemes for the line, the priority sorting principles of the substation schemes are arranged from high to low according to the priority, and the arrangement result of the priority sorting principles of the substation schemes is obtained:

[0024] The interconnecting switch is a three-remote switch, the interconnecting switch air pressure is normal, the opposite line is not overloaded, there is no distributed power supply in the transfer path, it contains a preset priority interconnecting switch type, contains multi-power user line loads, the opposite side of the line has different plants and stations, the number of remote control switches is the largest and the opposite line load rate is the lowest.

[0025] Preferably, in step 2, sending processing end information to the substation batch transfer human-machine interface specifically includes:

[0026] The transfer plan that has passed the prohibited transfer safety check and substation plan priority sorting is written into the database, the power outage plant and station-related equipment information is recorded in the equipment fault event table, and the fault plan analysis and processing completion information is sent to the substation batch transfer human-machine interface.

[0027] Preferably, in step 3, the responsibility area authority check is performed on the substation user login instruction, specifically including:

[0028] When the substation human-machine interface receives a user login instruction, it verifies the scope of the responsibility area of ​​the user logging in to the substation human-machine interface according to the preset responsibility area authority relationship. After the verification is passed, the plant information within the responsibility area is displayed. The substation human-machine interface provides scheme editing, scheme execution, operation mode recovery and historical query interface information, and the scheme editing interface is displayed by default.

[0029] Preferably, in step 4, the substation operation locking authority verification specifically includes:

[0030] When checking the operation authority, if a workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority of all other workstation substation fault batch transfer human-machine interfaces is locked; if no workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority is opened to the workstation substation fault batch transfer human-machine interface that is currently obtaining the operation authority;

[0031] Operate the power transfer plan on the substation fault batch transfer human-machine interface that has obtained the operation authority, and realize the self-healing of the substation full shutdown fault through the interface operation instructions;

[0032] The locking logic is checked before all operations. For each operation on the interface, after clicking to trigger the processing event, it is determined whether the operator has the operation authority for the plant station. No operation can be performed without authority.

[0033] Preferably, in step 4, the substation power transfer plan editing interface specifically includes:

[0034] View the number of all schemes for the target power transfer line, the time of power transfer scheme generation, the added remarks, the detailed operation steps of each power transfer scheme and the scheme priority ranking information, provide scheme generation request, scheme priority adjustment, one-key pinning of schemes, scheme editing, scheme deletion instructions and scheme export entry, and expand the scheme editing interface by default after the substation fault batch power transfer human-machine interface is opened, and perform scheme editing operations in the scheme editing interface;

[0035] Classify all substations according to the area to which they belong, view the line transfer and restoration plan of the target plant and the information of each transfer plan, and provide an interactive interface for plan operation. The main interface provides right-click generation of the whole station plan, line plan generation, busbar plan generation, substation plan saving and plan export functions;

[0036] Select the area to which the substation belongs, and list all substations belonging to the area. Select a substation to enter the line selection interface for preparing the line plan to which the substation belongs;

[0037] Select any bus to view all the scheme line editing interfaces of the feeder corresponding to the target bus under the plant station;

[0038] Select any line to view all operation steps of this line, including the name of the opposite line, the name of the operating device, and the status of the operating device;

[0039] Select any line to view all information about this line and operate the plan that pops up, including editing the plan, deleting the plan, raising / lowering the priority and pinning it with one click.

[0040] Preferably, the right-click operation instructions for substation scheme editing include the right-click operation instructions for the main interface, the right-click operation instructions for the scheme details page interface, and the right-click scheme editing operation instructions for the scheme details page interface, specifically including:

[0041] The right-click operation commands on the main interface include the command for generating the whole station plan, the command for generating the busbar plan, the command for generating the line plan, the command for saving the substation plan, and the command for exporting the plan;

[0042] The right-click operation commands on the plan details page include increasing priority, decreasing priority, pinning a plan, editing a plan, and deleting a plan.

[0043] The right-click editing commands on the plan details page include move up, move down, add, save, and delete.

[0044] Preferably, in step 4, the substation manual intervention scheme verification operation instructions for the substation power transfer scheme verification include a mandatory verification pass instruction, a priority increase instruction, a priority decrease instruction, and a single-line diagram pop-up instruction;

[0045] The verification principles of substation power transfer plan include operation mode verification, power supply capacity verification, operation safety verification, line safety verification, diagram and model change verification, remote control operation safety verification, basic remote control data verification and topology five-defense verification.

[0046] Preferably, in step 4, the substation transfer scheme verification page displays the line load on the outgoing side before execution, the line load on the incoming side before execution, the total load, the name of the opposite plant, the control switch, the connecting switch, the verification status and the reason for failure, and provides scheme verification mode selection, operation mode selection, remote control mode selection, verification entry, verification result display and manual intervention entry.

[0047] Preferably, the verification mode includes cold pour and hot pour;

[0048] The operation modes include open first and close later and close first and open later. The cold reverse corresponds to the open first and close later operation mode, and the hot reverse corresponds to the close first and open later operation mode. The cold reverse is selected by default to handle the fault.

[0049] Preferably, in step 4, after the scheme is successfully verified on the verification page, it is displayed in the scheme list on the scheme execution page, and the substation scheme execution page specifically includes:

[0050] The plan includes the line load on the outgoing side before execution, the line load on the incoming side before execution, the execution operation steps, the current execution status, the line load after outgoing transfer and the line load after incoming transfer after execution. The execution status includes the operator, guardian and machine node information, and provides dual authority verification instructions for operators and guardians, remote control mode selection, and the plan execution page provides preset execution buttons, execution mode selection, execution buttons and execution authority verification interaction channels, and displays the execution operation results in real time.

[0051] Preferably, the substation remote control mode selection includes single-step remote control mode, sequential remote control mode and batch remote control mode, specifically including:

[0052] In the single-step remote control mode, the programs are executed from top to bottom according to the order of the programs. In the cold reversal mode, the switch opening and closing of each program is equipped with a program execution confirmation button, and the executor determines whether to continue the execution. The success or failure of the previous program does not affect the execution of the next program. In the hot reversal mode, the switch opening and closing of each program and the program execution confirmation button are set between programs. The executor determines whether to continue the execution. The success or failure of the previous program does not affect the execution of the next program.

[0053] Sequential execution remote control mode, according to the scheme sorting, from top to bottom in sequence, until all records are executed, the success or failure of the previous scheme does not affect the execution of the next scheme;

[0054] Batch execution of remote control mode, executing remote control of all switches in all line transfer schemes without manual intervention.

[0055] Preferably, in step 4, the substation operation mode recovery interface specifically includes:

[0056] After the substation fault is eliminated and the busbar pressure loss is relieved, the operation mode recovery interface provides a power transfer plan to restore the original optimal operation mode, provides two pages of plan verification and plan execution, and provides a manual interaction entrance, allowing humans to decide whether to start the operation mode recovery process.

[0057] Preferably, in step 4, the substation history query page specifically includes:

[0058] Record the operation records of the plan execution and operation mode recovery pages. The substation history query page provides three tab pages for displaying all information, plan execution information and operation mode recovery information, respectively displaying the corresponding information, recording the operation records of the plan execution and operation mode recovery pages, and providing a plan export button to export the interface event records of the current history query page.

[0059] A second aspect of the present invention provides a medium-voltage bus fault self-healing and substation fault batch power transfer self-healing system, which is used to implement the medium-voltage bus fault self-healing and substation fault batch power transfer method, comprising:

[0060] Transfer plan acquisition module: used to open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan;

[0061] Transfer plan processing module: It is used to store the plan data after filtering and prohibiting the transfer plan of the substation and sorting the priority of the substation plan, and send a processing end message to the substation batch transfer human-machine interface;

[0062] Transfer plan viewing module: after sending the processing completion message to the substation batch transfer human-machine interface, it performs responsibility area authority verification and substation user login authority verification on the substation user login instruction, obtains the plant and station information within the responsibility area of ​​the logged-in user, and obtains the transfer plan of the target plant and station within the responsibility area;

[0063] Substation batch transfer self-healing module: Verify the target plant station operation lock authority. After the authority verification is successful, the substation fault batch transfer human-machine interface is used to perform the substation transfer plan editing, substation transfer plan verification, substation transfer plan execution, substation operation mode recovery and substation history query on the target plant station in the responsibility area, and obtain the substation fault batch transfer module;

[0064] Medium-voltage bus fault self-healing module: used to automatically sense medium-voltage bus undervoltage faults based on medium-voltage bus undervoltage fault judgment criteria, obtain medium-voltage bus transfer solutions through real-time topological analysis, call medium-voltage bus transfer and restoration solutions based on the medium-voltage bus human-machine operation interface, and build a medium-voltage bus fault self-healing model;

[0065] Distribution network fault handling system construction module: used to combine the medium-voltage busbar fault self-healing model with the substation fault batch transfer model to build a distribution network fault handling model, realize medium-voltage busbar pressure loss fault self-healing and substation fault batch transfer.

[0066] Preferably, a terminal comprises a processor and a storage medium;

[0067] The storage medium is used to store instructions;

[0068] The processor is used to operate according to the instructions to execute the steps of the method for medium-voltage bus fault self-healing and substation fault batch power transfer.

[0069] Preferably, a computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the method for medium-voltage bus fault self-healing and substation fault batch power transfer.

[0070] The beneficial effects of the present invention are as follows:

[0071] Different from the previous fault handling for a certain feeder or a small area, the present invention is based on the existing distribution master station system and integrates different system models and data resources. On the one hand, it can monitor the status of the medium-voltage bus in real time and realize automatic perception of the bus failure according to the bus failure fault judgment criteria. On the other hand, it can deal with the substation power outage fault in an emergency. It can not only call the emergency plan prepared in advance, but also request the generation of the whole station plan in real time according to the current section. After sensing the information of the bus failure or receiving the information of the faulty substation, the fault analysis processing program is automatically started, and the topology service is requested in real time for the transfer and restoration plan of the bus failure or the faulty substation. According to the prohibition of transfer safety verification rules and the priority sorting principle of the strategy, invalid plans are screened out, prioritized, and the sorted plans are written into the database. For the bus failure, the fault analysis processing program will send a bus failure message and pop up the bus failure self-healing human-machine interface, provide plan adjustment, verification, and execution operations, and can realize rapid power restoration through sequential remote control, concurrent remote control, etc. For the substation power outage, the fault analysis processing program will directly transfer the human-machine interface to the substation in batches Send a message to complete information processing, provide operations such as plan adjustment, verification, execution, and operator recovery execution, and can quickly restore power through single-step remote control, sequential remote control, batch remote control, etc. The power restoration time of both functions is reduced from hours to minutes, breaking the previous work mode of relying on manual plan formulation, manual remote control transfer, power supply safety verification line by line, and manual execution line by line. Through full process automation and remote batch remote control operation, multiple power-lost lines can be quickly transferred, greatly reducing operation time, greatly improving power supply reliability, greatly reducing the pressure on dispatching personnel, and effectively ensuring the safe and stable operation of the power grid; for busbar pressure loss faults, a graphical interface is provided to manually intervene and start the busbar self-healing function to handle manually discovered pressure loss busbar faults, which can also achieve rapid power restoration; in addition, both functions provide historical query functions, which can realize the full process processing traceability of pressure loss busbar self-healing events and substation failure full stop self-healing events. Through comparative analysis of similar historical events, decision-making and experience support can be provided for the subsequent emergency plan formulation and event emergency handling, greatly improving the ability to cope with risks. The present invention can realize automatic fault sensing, emergency handling and rapid power restoration for application scenarios of large-scale and multi-regional power outages, which can effectively avoid large-scale power outages in the distribution network, greatly reduce manpower and material resources, effectively shorten the power outage time, improve emergency power restoration capabilities, enhance customer electricity experience, help improve customer satisfaction, and effectively ensure the stable and safe operation of the distribution network.The present invention integrates the medium-voltage busbar pressure loss fault and the substation fault processing and self-healing method. In addition to having the functions of automatic fault perception, real-time plan generation and fast and efficient power restoration when responding to sudden medium-voltage busbar pressure loss major faults in the power grid, it also provides substation fault plan processing and self-healing functions. In order to better reduce the probability of increasing risks of local large-scale power outages in power grids under extreme conditions and arrange maintenance plans scientifically and reasonably, the present invention meets the application needs of emergency response to sudden medium-voltage busbar pressure loss major faults in power grids, and can also meet the application needs of daily operation maintenance of power grids, substation failures, regional large-scale power outages, etc., reduce the power outages caused by the maintenance process to the greatest extent, minimize the impact of sudden failures, and achieve rapid power restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 The present invention discloses a medium-voltage bus fault self-healing and substation fault batch power transfer method and system flow chart. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0074] Example 1

[0075] like Figure 1 As shown, this embodiment provides a method for medium-voltage bus fault self-healing and substation fault batch power transfer, and the specific steps are as follows:

[0076] Step 1: Open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan;

[0077] Substation plan generation request includes the whole station plan generation request, line plan generation request and bus plan generation request, specifically including:

[0078] The whole-station solution generation request refers to triggering the whole-station solution generation request event by clicking the right-click menu on the human-machine interface, sending the whole-station solution generation request to the server-side fault analysis processing program, and sending the requested plant information to the fault analysis processing program. The fault analysis processing program obtains the whole-station associated load information through the busbar table of the distribution master station system model library, the static equipment circuit breaker association table and other table information, including the relationship between the plant and the bus, the relationship between the bus and the associated load, the main network load nodes associated with the plant and the power supply source point.

[0079] Analysis of the request for generating the whole-station solution: Receive the request for generating the whole-station solution sent by the substation batch transfer human-machine interface, and obtain the information of the substation to be transferred.

[0080] A line plan generation request is a request to generate a line plan by clicking the right-click menu on the human-machine interface to trigger the line plan generation request event, sending a line plan generation request to the server-side fault analysis processing program, sending the requested line information and corresponding load information to the fault analysis processing program, and the fault analysis processing program directly obtains the line-related load information.

[0081] Line plan generation request analysis means receiving a line plan generation request sent by the substation batch transfer human-machine interface and obtaining information on the lines to be transferred;

[0082] The bus scheme generation request indicates that the bus scheme generation request event is triggered by clicking the right-click menu of the human-machine interface, and the bus scheme generation request is sent to the server-side fault analysis processing program, and the bus information to be requested is sent to the fault analysis processing program. The fault analysis processing program obtains the bus associated load relationship through the table information.

[0083] The busbar scheme generation request analysis means receiving the busbar scheme generation request sent by the substation batch transfer human-machine interface and obtaining the information of the line to be transferred.

[0084] The associated load information involved in substation fault self-healing includes the load information associated with the entire station, line and busbar. The specific acquisition includes:

[0085] Find the load corresponding to a single line based on the line relationship: Relying on the power distribution master station system, integrating different system models and data information, and obtaining the load information set associated with the pressure-loss line through the static device circuit breaker association table;

[0086] Find the bus information corresponding to the entire substation and the load corresponding to the bus according to the line relationship: Relying on the distribution master station system, integrating different system models and data information, and obtaining the load information set associated with the power outage substation through the bus relationship table and the static equipment circuit breaker association table;

[0087] Find the feeder information and load corresponding to the bus based on the line relationship: Relying on the power distribution master station system, integrating different system models and data information, and obtaining the load information set associated with the pressure-depleted bus through the distribution network line power information table, bus relationship table and static equipment circuit breaker association table.

[0088] Line, substation and busbar self-healing analysis:

[0089] Topology service request: Based on the information about the pressure-lost line, bus self-healing and loads associated with the power-lost substation, a request for power supply restoration plan for the pressure-lost line and the power-lost substation is sent to the topology service in real time;

[0090] Topology service request for line self-healing analysis: Send a line transfer and power restoration plan request to the topology service in real time based on the line load information;

[0091] Topology service request for full-station self-healing analysis: Send a request for full-station power transfer and restoration plan to the topology service in real time based on the load information of the substation itself;

[0092] Topology service request for bus self-healing analysis: Send a line transfer and power restoration plan request to the topology service in real time based on the load information carried by the bus.

[0093] The topology service generates a real-time topology solution based on the load, including: based on the model topology connection relationship of the line, taking the switch status analysis to obtain the main network load node under the current operation mode as the starting point on this side, based on the depth-first or breadth-first algorithm, starting from the main network load node to search for multiple power supply points on the opposite side, and tracing back from the power supply point on the opposite side to the starting point of the search, obtaining the transfer path from this side to the opposite side, forming a transfer plan, traversing the transfer plan, if there are multiple connections on the line, all the transferable plans of the line will be analyzed to obtain the information of the power supply point on the opposite side. According to the information of the power plant or bus to which the power source belongs, it is analyzed whether the line to be transferred and the line of the opposite power breakpoint belong to the same power plant or bus, and the transfer schemes of the same substation or bus or zero voltage on the opposite side are filtered. After the scheme filtering is completed, all switch paths that can be transferred are obtained, and the main paths of the lines on the to-be-transferred side and the borrowed power side at both ends of each transfer switch are analyzed, and the outgoing line circuit breaker in the to-be-transferred side is used as the control and distribution equipment, and the transfer switch is used as the control and closing equipment to give a complete line transfer scheme; each transfer scheme includes a circuit breaker and a contact switch.

[0094] Step 2: After filtering and prohibiting the substation power supply restoration plan obtained in step 1 and sorting the substation plan priority, the plan data is stored in the database, and a processing end message is sent to the substation batch power supply human-machine interface;

[0095] According to the safety verification and elimination of substation power transfer prohibition and the priority ranking principle of substation plans generated by strategies, the substation power transfer and restoration plans are safety verified and prioritized;

[0096] In this step, for the solutions returned by the topology, the priority sorting principle of substation solutions is generated according to the safety verification exclusion rules and strategies for prohibiting power transfer in substations, and the solutions are screened and sorted.

[0097] The safety verification rules for prohibiting power transfer in substations include:

[0098] Check whether the contact switch of the power transfer and restoration plan has a signboard with prohibited operation attributes, such as a maintenance sign, a debugging sign, etc. When the contact switch of the power transfer plan has a signboard information, filter the plan.

[0099] Verify whether there are any unclear status of the transfer equipment in the transfer path of the power transfer and restoration plan, such as abnormal protection status such as prominent working conditions and alarm suppression. If so, filter the plan.

[0100] Substation priority sorting principle. If there are multiple schemes for the line, the substation scheme priority sorting principle is arranged from high to low according to the priority, and the arrangement result of the substation scheme priority sorting principle is obtained: the interconnecting switch is a three-remote switch, the interconnecting switch air pressure is normal, the opposite line is not overloaded, there is no distributed power source in the transfer path, it contains a preset priority interconnecting switch type, contains multi-power user line load, different plants and stations on this side and the opposite side line, the number of remotely controlled switches is the largest, and the opposite line load rate is the lowest; the transfer scheme with the above scheme conditions has a higher priority than the transfer scheme without the corresponding conditions.

[0101] Send processing end information to the substation batch transfer human-machine interface:

[0102] The power transfer plan that has passed the prohibited power transfer safety check and plan priority sorting is written into the database, the power plant and station related equipment information (such as power plant and station, power line, power bus and other pressure loss information) is recorded in the equipment fault event table, and the fault plan analysis and processing completion information is sent to the substation batch power transfer human-machine interface.

[0103] Step 3: After sending the processing completion message to the substation batch transfer human-machine interface in step 2, the substation user login instruction is verified for the responsibility area authority and the substation user login authority, the plant station information within the responsibility area of ​​the login user is obtained, and the transfer plan of the target plant station within the responsibility area is obtained;

[0104] Verify the user login authority and workstation operation authority of remote users and workstations respectively;

[0105] Substation batch power transfer self-healing: user login authority, responsibility area verification, plant and station operation lockout.

[0106] The substation user login command performs the responsibility area authority verification, specifically:

[0107] When receiving the user login instruction, the responsibility area range of the user logged in by the human-machine interface is verified according to the preset responsibility area authority relationship. If yes, the plant and station information within the responsibility area will be displayed on the interface. If no, no corresponding plant and station information will be displayed on the interface. The human-machine interface provides interface information such as scheme editing, scheme execution, operation mode recovery, historical query, etc., and the scheme editing interface is displayed by default.

[0108] Substation user login authority verification, the specific contents include:

[0109] By default, the plan editing interface of the target plant station selected within the logged-in user's responsibility area is displayed. When the operation lock authority is not checked, only browsing operations can be performed on the plan, and right-click menus or button trigger operations cannot be performed. By default, the emergency plan pre-compiled by the target plant station is displayed.

[0110] Step 4: Verify the target plant station operation locking authority. After the authority verification is successful, the substation fault batch transfer plan of the target plant station in the responsibility area obtained in step 3 is edited, the substation transfer plan is verified, the substation transfer plan is executed, the substation operation mode is restored, and the substation history query instructions are performed through the substation fault batch transfer human-machine interface to obtain the substation fault batch transfer module.

[0111] Verify the user login authority and workstation operation authority of remote users and workstations respectively;

[0112] Substation batch power transfer self-healing: user login authority, responsibility area verification, plant and station operation lockout.

[0113] Substation plant operation lockout authority verification, specifically:

[0114] When checking the operation authority, if a workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority of all other workstation substation fault batch transfer human-machine interfaces will be locked; if no workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority will be opened to the workstation substation fault batch transfer human-machine interface that is currently obtaining the operation authority;

[0115] The substation fault batch transfer human-machine interface with operation authority is allowed to operate the transfer plan, and the substation full shutdown fault self-healing is realized through interface operation instructions;

[0116] The locking logic needs to be checked before all operations. For each operation on the interface, after clicking the trigger processing event, it will be judged whether the operation authority for the plant station is granted, such as double-clicking the plant station name on the left, clicking the interface button, etc. Only those with authority can operate, and those without authority cannot operate.

[0117] Substation operation instructions include substation transfer plan editing, substation transfer plan verification, substation transfer plan execution, substation operation mode recovery, and substation history query instructions.

[0118] Substation transfer plan editing interface: You can view the number of all transfer plans for the target lines to be transferred, the time when the transfer plan was generated, the added remarks, the detailed operation steps of each transfer plan, and the priority ranking information of the plans. It also provides plan generation requests, plan priority adjustment, one-click pinning of plans, plan editing, plan deletion instructions, and plan export entry. When the human-machine interface is opened, the plan editing interface is expanded by default, and plan editing operations can be performed;

[0119] The substation plan editing interface can classify all substations according to the area to which the substation belongs, and can view the line transfer and power restoration plan of the target plant, detailed information of each transfer plan (operation steps, priority ranking, current information, transfer countermeasure power source point, load rate, etc.), and provide an interactive interface for plan operation. Among them, the main interface provides the right-click full station plan generation, single line plan generation, busbar plan generation, substation plan saving function, and also provides a plan export function;

[0120] Select any bus to view all the scheme line editing interfaces of the feeder corresponding to the target bus under the plant station;

[0121] Select any line to view all information about this line and operate the plan that pops up, including editing the plan, deleting the plan, raising / lowering the priority and pinning it with one click.

[0122] Click to select the area to which the substation belongs. All substations belonging to the area are listed below. Click to select a substation to enter the line selection interface for preparing the line plan to which the substation belongs.

[0123] Click on a line to view all detailed operation steps of this line, including the name of the opposite line, the name of the operating device, and the status of the operating device;

[0124] Double-click a line to view all detailed information about the line, including the line name. You can also edit and delete plans that pop up, increase / decrease priority, and pin them to the top with one click.

[0125] The right-click operation instructions for substation scheme editing include the right-click operation instructions on the main interface, the right-click operation instructions on the scheme details page interface, and the right-click scheme editing operation instructions on the scheme details page interface.

[0126] The right-click operation commands on the scheme editing main interface include:

[0127] Full-site solution generation instruction: Send a full-site solution generation request to the server-side fault analysis processing program, and return a message after the processing is completed;

[0128] Line plan generation command: Send a line plan generation request to the server-side fault analysis processing program, and a pop-up window will be displayed after the processing is completed;

[0129] Bus scheme generation instruction: Send a bus scheme generation request to the server-side fault analysis processing program, and return a message after the processing is completed;

[0130] Substation plan saving command: export all plans under the substation in txt format and save them in the main path of the system. The exported content must include the plant name, line name, borrowed power line, and line operation steps;

[0131] Scheme export command: export all the emergency plans under the substation in csv format, or export all the emergency plans corresponding to each busbar under the substation in csv format and save them in the specified directory. The exported content must include the plant name, busbar name, line name, borrowed power line, number of plans, plan priority, and line operating equipment. The exported file is named with plant name + accident plan + year, month, and date or plant name + busbar name + accident plan + year, month, and date, and can be opened with Excel.

[0132] The right-click operation commands on the scheme details page of the substation scheme editor include:

[0133] Priority increase instruction: artificially increase the priority of the current solution and raise the processing priority of the current solution by one level;

[0134] Lower priority instruction: artificially lower the priority of the current solution and lower the processing priority of the current solution by one level;

[0135] One-click plan top command: quickly raise the priority of the current plan to the highest level, that is, the priority is raised to 1, and the promoted plan is processed first. When there are many plans, the plan priority can be quickly raised;

[0136] Plan editing instructions: Manually modify the current plan operation steps. Confirm the user name and password, enter the plan editing interface, and provide "up" record, "down" record, "add" record, "delete" and "save" buttons for specific operation steps. You can move the operation steps of the generated plan, add and delete the operation steps, etc.

[0137] Plan deletion command: Manually delete the current plan. Click the "Plan Delete" menu, and a pop-up window will pop up to prompt whether to confirm the plan deletion. Click "Confirm" to delete the plan, and click "Cancel" to not delete it.

[0138] The right-click scheme editing operation instructions on the scheme details page of the substation scheme editing interface include:

[0139] Move up command: Select the target operation step and click the "Move up" button to manually move the operation step up;

[0140] Move down command: Select the target operation step and click the "Move down" button to manually move the operation step down;

[0141] Add command: Click the "Add" button, and a pop-up window will pop up to provide two switch adding methods: retriever selection switch and graphic selection switch;

[0142] Save command: Click the "Save" button, and a pop-up window will prompt whether to replace the original plan. Manual intervention is supported. Click "Confirm" to save the new plan, and click "Cancel" to keep the original plan. After confirming the save, a pop-up window will prompt that the save is successful and you can see the new plan;

[0143] Delete instruction: Click the "Delete" button to delete the target operation steps.

[0144] Substation transfer scheme verification page: displays the outgoing line load before execution, incoming line load before execution, total load, opposite station name, control switch, contact switch, verification status, failure reason, etc., and provides scheme verification mode selection, operation mode selection, remote control mode selection, verification entry, verification result display, manual intervention entry, etc.

[0145] Substation verification modes include: cold reverse and hot reverse;

[0146] Substation operation modes include: "open first, close later" and "close first, open later" operation modes. Cold reverse corresponds to the open first, close later operation mode, and hot reverse corresponds to the close first, open later operation mode. Cold reverse is selected by default to handle faults.

[0147] Substation verification entrance: Provide a "Verify" button. Click the button to verify the selected solution on the verification page.

[0148] Substation human intervention scheme verification operation instructions include:

[0149] Force verification pass command: manually make the scheme that failed verification pass the verification and display it. Right-click "Force verification pass" to make the scheme that failed verification pass the verification and mark it in green. The scheme that passed the verification will be displayed in the "Execution scheme" interface, and the scheme that failed the verification will not be displayed;

[0150] Increase priority command: artificially increase the execution priority of the current line verification. Right-click "Increase Priority" to increase the priority of the current line plan. The current line priority can be increased by one level;

[0151] Lower priority command: Manually lower the execution priority of the current line verification. Right-click "Lower Priority" to lower the priority of the current line plan. The current line priority can be lowered by one level.

[0152] Pop-up single-line diagram command: Manual operation pops up the single-line diagram of the de-energized feeder. Right-click "Pop-up single-line diagram" to pop up the single-line diagram of the de-energized feeder.

[0153] The substation verification principles include: verification at the business level and verification at the remote control safety level.

[0154] Verification at the business level includes verification of operation mode (quality code), verification of power supply capacity (current carrying capacity and load factor), verification of operation safety (remote control, consistency of telesignaling value, and verification of air pressure alarm), verification of line safety (feeder fault status), and verification of diagram and model changes.

[0155] The verification at the remote control safety verification level includes remote control operation safety verification, basic remote control data verification and topology five-defense verification.

[0156] Verification of the telesignal quality code of the switch in the power transfer scheme: Verify whether the telesignal quality code of the circuit breaker and the contact switch is normal. If the telesignal status is telesignal blocking, telesignal setting, telesignal bad data, telesignal working condition exit, remote control locking, telesignal non-measurement, etc., the telesignal is considered abnormal;

[0157] Verification of the operation mode of the power transfer scheme: Verify the switch status in the real-time database, and test whether the remote signal value and remote control value of the operating switch (circuit breaker, contact switch) are consistent. If they are not consistent, the operation mode verification fails;

[0158] Verification of the power supply capacity of the opposite line in the transfer scheme: Verify the current carrying capacity and current value of the test line in the real-time database, and test whether the opposite line of the transfer is overloaded. If it is overloaded, the power supply capacity verification fails;

[0159] Safety check of the local line in the power transfer scheme: Consider whether the feeder carried by the pressure-losing busbar is in a faulty state. By judging the opening of the self-healing starting switch configured under the feeder and the signal action of the action signal type, it is judged whether the power transfer line is in a faulty state. If it is in a faulty state, the safety check fails;

[0160] Gas pressure alarm verification of the operation switch of the transfer scheme: verify whether the types and values ​​of the circuit breaker and contact switch types in the protection signal table and the distribution network protection node table meet the abnormal gas pressure state. If it is in an abnormal state, the gas pressure alarm verification fails.

[0161] The substation scheme verification results display includes:

[0162] Successful verification is marked in green, and failed verification is marked in red. The verification failure solution will give the reason for the verification failure. For easy viewing, the function of displaying information with the mouse tip label is also provided. Move the mouse over a record to display the domain record of the corresponding row, including but not limited to the failure reason.

[0163] If the verification fails, you can modify the corresponding device information according to the corresponding verification failure reason, and then verify again. The verification can pass when the conditions are met.

[0164] Plan execution page: Only plans that have passed the verification on the verification page can be displayed in the plan list on the plan execution page. The displayed content includes the line load on the outgoing side before execution, the line load on the incoming side before execution, the execution operation steps, the current execution status, the line load after outgoing execution, and the line load after incoming execution. The execution status includes the operator, guardian, and machine node information, and provides dual authority verification instructions for the operator (first execution login) and guardian (second execution login), remote control mode selection, and the plan execution page provides preset execution buttons, execution mode selection, execution buttons, and interactive methods for execution authority verification. The execution results can be preset in advance to view, and the execution operation results can also be displayed in real time.

[0165] The dynamic display of execution results includes:

[0166] The execution process is refreshed and displayed in real time, including the current execution status, operator, guardian, and program running machine node information, and identifies the successful execution of the control separation and control equipment, and the failed execution of the control separation and control equipment. Finally, a pop-up window displays the total number of lines and the number of failures in this round of execution processing.

[0167] The execution entry includes: providing an "Execute" button, a "Pause Execution" button, and an "End Execution" button. Click the "Execute" button to remotely execute the execution plan through execution permission verification. Click the "Pause Execution" button to terminate the current remote execution process. Click the "End Execution" button to terminate the current remote execution.

[0168] Substation execution authority verification: refers to the dual authority verification of the operator and the guardian, that is, if the operator and the guardian both have remote control authority and the operator and the guardian are different, the verification will pass. The identities of the operator and the guardian are preset through the substation fault batch transfer human-machine interface.

[0169] The substation remote control mode selection is: single-step remote control mode, sequential remote control mode, batch remote control mode;

[0170] The single-step remote control mode is: according to the program sorting, it is executed from top to bottom in sequence. It is slightly different in cold pour and hot pour mode:

[0171] The sequential execution remote control mode is: according to the scheme sorting, it is executed in sequence from top to bottom until all records are executed. The success or failure of the previous scheme does not affect the execution of the next scheme;

[0172] The batch execution remote control mode is: execute the remote control of all switches in all line transfer plans without manual intervention.

[0173] Single-step remote control mode: Cold pour and hot pour mode are slightly different.

[0174] In the cold reverse mode, the switch opening and closing of each plan is equipped with a plan execution confirmation button, and the executor determines whether to continue the execution. The success or failure of the previous plan does not affect the execution of the next plan;

[0175] In the hot-reverse mode, each plan has a plan execution confirmation button between the switch opening and closing, and between plans. The executor determines whether to continue the execution. The success or failure of the previous plan does not affect the execution of the next plan.

[0176] The dynamic display of substation execution results includes:

[0177] The execution process is refreshed and displayed in real time, including the current execution status, operator, guardian, and program running machine node information, and identifies the successful execution of the control separation and control equipment, and the failed execution of the control separation and control equipment. Finally, a pop-up window displays the total number of lines and the number of failures in this round of execution processing.

[0178] The line processing for substation execution failure includes:

[0179] By expanding the path search range, the topology search range in the generated transfer strategy can be changed from the equipment operation part within the station to the first online three-remote control switch on the main line outside the station to participate in subsequent execution operations.

[0180] Substation operation mode recovery interface: refers to the interface after a large-scale power outage is restored. Since the operation mode at this time is a temporary mode, after the substation fault is eliminated and the busbar pressure loss is relieved, the operation mode recovery interface can provide a transfer plan to restore the original optimal operation mode, restore the original operation mode to ensure the optimized operation of the operation mode, and restore the operation mode after the fault is relieved. The operation mode recovery interface provides two tab pages for scheme verification and scheme execution to restore the original optimal operation mode, respectively realizing the scheme verification and execution functions, and providing an interactive entrance. It is decided manually whether to start the operation mode recovery process: displaying the line to be transferred, the opposite side borrowing line, the current value, the control switch, the control switch, the verification status, the failure reason, and providing a scheme verification entrance, a verification result display, a manual intervention entrance, etc.;

[0181] Solution verification page: displays the line to be transferred, the opposite side borrowing line, current value, control switch, control switch, verification status, failure reason, and provides solution verification entry, verification result display, manual intervention entry, etc.

[0182] Plan execution page: Only plans that have passed verification can be displayed on the plan execution page, which displays information such as the plan's pending transfer lines, opposite-side borrowed power lines, operation steps, execution status, etc., provides interactive channels such as execution mode selection, execution button, execution authority verification, and displays the execution operation results in real time.

[0183] Manual intervention instructions include:

[0184] Force verification pass command: manually make the scheme that failed verification pass the verification and display it. Right-click "Force verification pass" to make the scheme that failed verification pass the verification and mark it in green. The scheme that passed the verification will be displayed in the "Execution scheme" interface, and the scheme that failed the verification will not be displayed;

[0185] Delete line command: Manually delete the current plan and delete it from the plan library. Right-click "Delete Line" to delete the current line plan.

[0186] Execution authority verification: It means that both the operator and the guardian have remote control authority, and the identities of the operator and the guardian are preset through the substation fault batch transfer human-machine interface.

[0187] The substation remote control mode selection is: single-step remote control mode, sequential remote control mode, batch remote control mode;

[0188] The single-step remote control mode is: according to the scheme sorting, it is executed from top to bottom, which is slightly different in cold pour and hot pour mode;

[0189] The sequential execution remote control mode is: according to the scheme sorting, it is executed in sequence from top to bottom until all records are executed. The success or failure of the previous scheme does not affect the execution of the next scheme;

[0190] The batch execution remote control mode is: execute the remote control of all switches in all line transfer plans without manual intervention.

[0191] Single-step remote control mode: cold pour and hot pour mode are slightly different

[0192] In the cold reverse mode, the switch opening and closing of each plan is equipped with a plan execution confirmation button, and the executor determines whether to continue the execution. The success or failure of the previous plan does not affect the execution of the next plan;

[0193] In the hot-reverse mode, each plan has a plan execution confirmation button between the switch opening and closing, and between plans. The executor determines whether to continue the execution. The success or failure of the previous plan does not affect the execution of the next plan.

[0194] The dynamic display of substation execution results includes:

[0195] The execution process is refreshed and displayed in real time, including the current execution status, operator, guardian, and program running machine node information, and identifies the successful execution of the control separation and control equipment, and the failed execution of the control separation and control equipment. Finally, a pop-up window displays the total number of lines and the number of failures in this round of execution processing.

[0196] The line processing for substation execution failure includes:

[0197] By expanding the path search range, the topology search range in the generated transfer strategy can be changed from the equipment operation part within the station to the first online three-remote control switch on the main line outside the station to participate in subsequent execution operations.

[0198] Substation history query page: The operation records of the "Plan Execution" and "Operation Mode Recovery" pages can be recorded and distinguished. The page provides three tab pages, "All Information Display", "Plan Execution Information Display", and "Operation Mode Recovery Information Display", to display the corresponding types of information respectively, record the operation records of the "Scheme Execution" and "Operation Mode Recovery" pages, and provide a scheme export button to export the interface event records of the current history query page;

[0199] Query bus self-healing events based on start time and keywords, and display information such as the line to be transferred, the opposite side borrowing line, operation steps, execution status, operator, operation time, and operation method;

[0200] The historical query displays the substation power outage self-healing events one month before the current time point by default, and is divided into two query modes: search by time and search by time + fault event keywords;

[0201] Provide a "Plan Export" interface to export in Excel format and save it in the system main path. The file name is: All historical query information_year, month, and day, plan execution historical query information_year, month, and day, operation mode recovery historical query information_year, month, and day.

[0202] Three types of tab pages display information:

[0203] "All Information Display" Tab page: displays the plan execution and operation recovery page operation records of the corresponding plant and station during the query period;

[0204] "Plan Execution Information Display" Tab page: only displays the plan execution page operation records of the corresponding plant station within the query time period;

[0205] "Operation mode recovery information display" Tab page: only displays the operation records of the operation mode recovery page of the corresponding plant during the query time period.

[0206] Two query methods:

[0207] Searching by time means that for the selected time period, the default display is in the order from recent to far;

[0208] Query by time + substation name: filter busbar self-healing events through the set time period and fuzzy query containing plant and substation keywords, and display them in order from recent to far in time.

[0209] Plan export function: plan records are exported in Excel form and saved in the system main path or the specified directory. The file name is: all historical query information_year, month, and day, plan execution historical query information_year, month, and day, operation mode recovery historical query information_year, month, and day.

[0210] Step 5: Automatically sense the medium-voltage busbar undervoltage fault according to the medium-voltage busbar undervoltage fault judgment criterion, obtain the medium-voltage busbar transfer plan through real-time topology analysis, obtain the medium-voltage busbar transfer and power restoration plan based on the medium-voltage busbar human-machine operation interface to perform self-healing of the undervoltage busbar fault, and build a medium-voltage busbar fault self-healing model.

[0211] Get the information of the busbar with no voltage;

[0212] Bus self-healing trigger mode:

[0213] Monitor the data of the depressurized bus: Based on the real-time monitoring of the operating status of the medium-voltage bus, based on the distribution master station system, and integrating other system models and data resources, the bus status is automatically detected, and the depressurized bus fault perception and judgment are performed according to the bus depressurization fault judgment criteria, and the depressurized bus set is obtained from the judgment results.

[0214] Request analysis from the right-click menu: Manually start the graphical interface, that is, manually start the bus self-healing based on the graphical interface: For the manually discovered faulty bus with depressurized voltage, in the plant diagram of the graphical interface, select the target bus and right-click the "bus self-healing" menu to obtain the depressurized bus information, that is, manually select the bus analysis process based on the right-click menu of the graphical interface and send the depressurized bus information.

[0215] Obtain the load information of the voltage-depleted busbar;

[0216] Find the load set corresponding to the busbar based on the line relationship: Relying on the power distribution master station system, integrating different system models and data information, and obtaining the load information set associated with the pressure-losing busbar through the static device circuit breaker association table;

[0217] Send a request for a power transfer and restoration plan for the lost-voltage bus to the topology service based on the load information of the lost-voltage bus and obtain a power transfer and restoration plan for the lost-voltage bus and power-off substation;

[0218] Topology service request: Send a request for power restoration plan of the voltage-lost bus to the topology service in real time according to the load information of the voltage-lost bus;

[0219] The topology service generates a real-time topology plan based on the load: the main grid load node is used as the starting point on this side, and based on the depth-first or breadth-first algorithm, multiple power supply points on the opposite side are searched from the main grid load node, and the power supply points on the opposite side are traced back to the starting point of the search to obtain the transfer path from this side to the opposite side, form a transfer plan, traverse the transfer plan, obtain the information of the power supply points on the opposite side, filter the transfer plans for the same plant and station and the opposite side bus voltage is 0, provide the transfer path on the waiting side and the borrowing side at both ends of the transfer switch, and provide the control and switching equipment to obtain the transfer and power restoration plan for the power plant with lost voltage; each transfer plan includes a circuit breaker and a contact switch.

[0220] The transfer schemes that have passed the safety check and priority sorting for prohibiting transfer are stored in the database, fault alarms are issued, and events are recorded in the pressure-loss bus fault event table. The pressure-loss bus information is sent to the client, and the bus self-healing human-machine interface is called;

[0221] After receiving the busbar pressure loss information, the client calls the busbar self-healing human-machine interface;

[0222] Processing of pressure loss information: The client receives the pressure loss bus information, sends a command to call the bus self-healing human-machine interface, and pops up the medium-voltage bus pressure loss self-healing human-machine interface, including three interfaces: scheme editing, scheme execution, and historical query. It provides operations such as permission verification, scheme adjustment, scheme verification, scheme execution, and historical query.

[0223] Verify the user login authority and workstation operation authority of remote users and workstations respectively;

[0224] User authority verification: In order to ensure the safe operation of the distribution network, it is necessary to perform standardized and strict authority verification on the operator's operating authority, which can be achieved through the solution editing interface.

[0225] Perform remote control permission check on user login instructions, specifically:

[0226] When receiving the user login command, according to the preset remote control authority relationship, check whether the corresponding busbar self-healing human-machine interface login user has remote control authority. If yes, direct login is allowed, and the scheme editing, scheme execution, and history query interface information in the busbar pressure loss self-healing human-machine interface are displayed.

[0227] Perform operation permission check on the operation instruction, specifically:

[0228] When checking the operation authority, if a workstation bus self-healing human-machine interface has obtained the operation authority, the operation authority of all other workstation bus self-healing human-machine interfaces will be locked; if no workstation bus self-healing human-machine interface has obtained the operation authority, the operation authority will be opened to the workstation bus self-healing human-machine interface that is currently obtaining the operation authority;

[0229] The bus self-healing human-machine interface that has obtained operation authority is allowed to operate the power transfer plan and realize busbar pressure loss self-healing through interface operation instructions; the bus self-healing human-machine interface that has not obtained operation authority has no operation authority by default, and is only allowed to browse the interface information, and is not allowed to perform any operations.

[0230] Remote control authority: if you have authority, you can open the interface; if you don’t have authority, you can’t open the interface; operation lock: if someone else is operating, this station has no authority and all stations are locked; if no one else is operating, this station has authority and all other stations are locked.

[0231] Users who have passed the authority verification can log in to the human-machine interface to perform busbar pressure loss self-healing operations.

[0232] Step 6: Combine the medium-voltage bus fault self-healing model obtained in step 5 with the substation fault batch transfer model obtained in step 4 to build a distribution network fault handling model to achieve medium-voltage bus failure self-healing and substation fault batch transfer.

[0233] Example 2

[0234] This embodiment 2 provides a medium-voltage bus fault self-healing and substation fault batch power transfer system, which is used to run the medium-voltage bus fault self-healing and substation fault batch power transfer method described in embodiment 1, including:

[0235] Transfer plan acquisition module: used to open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan;

[0236] Transfer plan processing module: It is used to store the plan data after filtering and prohibiting the transfer plan of the substation and sorting the priority of the substation plan, and send a processing end message to the substation batch transfer human-machine interface;

[0237] Transfer plan viewing module: after sending the processing completion message to the substation batch transfer human-machine interface, it performs responsibility area authority verification and substation user login authority verification on the substation user login instruction, obtains the plant and station information within the responsibility area of ​​the logged-in user, and obtains the transfer plan of the target plant and station within the responsibility area;

[0238] Substation batch transfer self-healing module: Verify the target plant station operation lock authority. After the authority verification is successful, the substation fault batch transfer human-machine interface is used to perform the substation transfer plan editing, substation transfer plan verification, substation transfer plan execution, substation operation mode recovery and substation history query on the target plant station in the responsibility area, and obtain the substation fault batch transfer module;

[0239] Medium-voltage bus fault self-healing module: used to automatically sense medium-voltage bus undervoltage faults based on medium-voltage bus undervoltage fault judgment criteria, obtain medium-voltage bus transfer solutions through real-time topological analysis, call medium-voltage bus transfer and restoration solutions based on the medium-voltage bus human-machine operation interface, and build a medium-voltage bus fault self-healing model;

[0240] Distribution network fault handling system construction module: used to combine the medium-voltage busbar fault self-healing model with the substation fault batch transfer model to build a distribution network fault handling model, realize medium-voltage busbar pressure loss fault self-healing and substation fault batch transfer.

[0241] Example 3

[0242] This embodiment 3 provides a terminal, including a processor and a storage medium; the storage medium is used to store instructions;

[0243] The processor is used to operate according to the instructions to execute the steps of a method for medium-voltage bus fault self-healing and substation fault batch power transfer according to Example 1.

[0244] Example 4

[0245] This embodiment 4 provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of a method for medium-voltage bus fault self-healing and substation fault batch power transfer described in embodiment 1 are implemented.

[0246] The beneficial effects of the present invention are as follows:

[0247] Different from the previous fault handling for a certain feeder or a small area, the present invention is based on the existing distribution master station system and integrates different system models and data resources. On the one hand, it can monitor the status of the medium-voltage bus in real time and realize automatic perception of the bus failure according to the bus failure fault judgment criteria. On the other hand, it can deal with the substation power outage fault in an emergency. It can not only call the emergency plan prepared in advance, but also request the generation of the whole station plan in real time according to the current section. After sensing the information of the bus failure or receiving the information of the faulty substation, the fault analysis processing program is automatically started, and the topology service is requested in real time for the transfer and restoration plan of the bus failure or the faulty substation. According to the prohibition of transfer safety verification rules and the priority sorting principle of the strategy, invalid plans are screened out, prioritized, and the sorted plans are written into the database. For the bus failure, the fault analysis processing program will send a bus failure message and pop up the bus failure self-healing human-machine interface, provide plan adjustment, verification, and execution operations, and can realize rapid power restoration through sequential remote control, concurrent remote control, etc. For the substation power outage, the fault analysis processing program will directly transfer the human-machine interface to the substation in batches Send a message to complete information processing, provide operations such as plan adjustment, verification, execution, and operator recovery execution, and can quickly restore power through single-step remote control, sequential remote control, batch remote control, etc. The power restoration time of both functions is reduced from hours to minutes, breaking the previous work mode of relying on manual plan formulation, manual remote control transfer, power supply safety verification line by line, and manual execution line by line. Through full process automation and remote batch remote control operation, multiple power-lost lines can be quickly transferred, greatly reducing operation time, greatly improving power supply reliability, greatly reducing the pressure on dispatching personnel, and effectively ensuring the safe and stable operation of the power grid; for busbar pressure loss faults, a graphical interface is provided to manually intervene and start the busbar self-healing function to handle manually discovered pressure loss busbar faults, which can also achieve rapid power restoration; in addition, both functions provide historical query functions, which can realize the full process processing traceability of pressure loss busbar self-healing events and substation failure full stop self-healing events. Through comparative analysis of similar historical events, decision-making and experience support can be provided for the subsequent emergency plan formulation and event emergency handling, greatly improving the ability to cope with risks. The present invention can realize automatic fault sensing, emergency handling and rapid power restoration for application scenarios of large-scale and multi-regional power outages, which can effectively avoid large-scale power outages in the distribution network, greatly reduce manpower and material resources, effectively shorten the power outage time, improve emergency power restoration capabilities, enhance customer electricity experience, help improve customer satisfaction, and effectively ensure the stable and safe operation of the distribution network.The present invention integrates the medium-voltage busbar pressure loss fault and the substation fault processing and self-healing method. In addition to having the functions of automatic fault perception, real-time plan generation and fast and efficient power restoration when responding to sudden medium-voltage busbar pressure loss major faults in the power grid, it also provides substation fault plan processing and self-healing functions. In order to better reduce the probability of increasing risks of local large-scale power outages in power grids under extreme conditions and arrange maintenance plans scientifically and reasonably, the present invention meets the application needs of emergency response to sudden medium-voltage busbar pressure loss major faults in power grids, and can also meet the application needs of daily operation maintenance of power grids, substation failures, regional large-scale power outages, etc., reduce the power outages caused by the maintenance process to the greatest extent, minimize the impact of sudden failures, and achieve rapid power restoration.

[0248] The present disclosure may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0249] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0250] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0251] The computer program instructions for performing the operation of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be customized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0252] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for self-healing of medium voltage bus faults and batch power transfer of substation faults, characterized in that: Step 1: Open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan; Step 2: After filtering and prohibiting the substation power supply restoration plan obtained in step 1 and sorting the substation plan priority, the plan data is stored in the database, and a processing end message is sent to the substation batch power supply human-machine interface; Step 3: After sending the processing completion message to the substation batch transfer human-machine interface in step 2, the substation user login instruction is verified for the responsibility area authority and the substation user login authority, the plant station information within the responsibility area of ​​the login user is obtained, and the transfer plan of the target plant station within the responsibility area is obtained; Step 4: Verify the target plant operation blocking authority. After the authority verification is successful, based on the substation failure batch transfer human-machine interface, the operation instructions of the transfer plan of the target plant in the responsibility area obtained in step 3 are used to edit the substation transfer plan, verify the substation transfer plan, execute the substation transfer plan, restore the substation operation mode, and query the substation history, so as to build a substation failure batch transfer model; Step 5: Automatically sense the medium-voltage busbar undervoltage fault according to the medium-voltage busbar undervoltage fault judgment criterion, obtain the medium-voltage busbar power transfer plan through real-time topology analysis, call the medium-voltage busbar power transfer and restoration plan based on the medium-voltage busbar human-machine operation interface, and build a medium-voltage busbar fault self-healing model; Step 6: Combine the medium-voltage bus fault self-healing model obtained in step 5 with the substation fault batch transfer model obtained in step 4 to build a distribution network fault handling model to achieve medium-voltage bus failure self-healing and substation fault batch transfer.

2. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 1, the substation solution generation request includes a full station solution generation request, a line solution generation request, and a bus solution generation request, specifically including: The whole station solution generation request is triggered by clicking the right-click menu on the human-machine interface. The whole station solution generation request is sent to the server-side fault analysis processing program. The fault analysis processing program obtains the whole station associated load information through the table information. The line plan generation request is triggered by clicking the right-click menu on the human-machine interface. The line plan generation request is sent to the server-side fault analysis processing program, and the fault analysis processing program directly obtains the line-related load information; The bus scheme generation request is triggered by clicking the right-click menu on the human-machine interface, and the bus scheme generation request is sent to the server-side fault analysis processing program. The fault analysis processing program obtains the bus-related load information through the table information.

3. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 1, the topology service generates a real-time topology solution based on the associated load, including: According to the model topological connection relationship of the line, the main grid load node obtained under the current operation mode is analyzed according to the switch status as the starting point of this side. Starting from the main grid load node, the power supply point on the opposite side is searched, and from the opposite power point back to the starting point of the search, the transfer path from this side to the opposite side is obtained, and a transfer plan is formed. The transfer plan is traversed, all the transfer plans of the line are analyzed, and the information of the power supply point on the opposite side is obtained. According to the information of the power station and the bus to which the power point belongs, it is analyzed whether the line to be transferred and the line of the opposite power breakpoint belong to the same plant station and the same bus. The transfer plans of the same substation, the same bus and the opposite voltage are filtered. After the plan filtering is completed, all the switch paths to be transferred are obtained, and the trunk paths of the lines on the to-be-transferred side and the borrowed side at both ends of each transfer switch are analyzed. The outgoing line circuit breaker in the station on the to-be-transferred side is used as the control and distribution equipment, and the transfer switch is used as the control and closing equipment to give a complete transfer plan for the line.

4. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 2, the substation prohibits power transfer safety verification rules, including: Check whether the contact switch of the power transfer and restoration plan has a signboard with prohibited operation attributes. If the contact switch of the power transfer plan has a signboard, filter the plan; Check whether there is an abnormal protection status in the transfer path of the power transfer and restoration plan, and filter the plan if there is an abnormal protection status.

5. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 2, if there are two or more schemes for the line, the priority sorting principle of the substation scheme is arranged from high to low according to the priority, and the arrangement result of the priority sorting principle of the substation scheme is obtained: The interconnecting switch is a three-remote switch, the interconnecting switch air pressure is normal, the opposite line is not overloaded, there is no distributed power supply in the transfer path, it contains a preset priority interconnecting switch type, contains multi-power user line loads, the opposite side of the line has different plants and stations, the number of remote control switches is the largest and the opposite line load rate is the lowest.

6. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 2, the processing end information is sent to the substation batch transfer human-machine interface, specifically including: The transfer plan that has passed the prohibited transfer safety check and substation plan priority sorting is written into the database, the power outage plant and station-related equipment information is recorded in the equipment fault event table, and the fault plan analysis and processing completion information is sent to the substation batch transfer human-machine interface.

7. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 3, the responsibility area authority check is performed on the substation user login instruction, including: When the substation human-machine interface receives a user login instruction, it verifies the scope of the responsibility area of ​​the user logging in to the substation human-machine interface according to the preset responsibility area authority relationship. After the verification is passed, the plant information within the responsibility area is displayed. The substation human-machine interface provides scheme editing, scheme execution, operation mode recovery and historical query interface information, and the scheme editing interface is displayed by default.

8. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 4, the substation operation locking authority verification includes: When checking the operation authority, if a workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority of all other workstation substation fault batch transfer human-machine interfaces is locked; if no workstation substation fault batch transfer human-machine interface has obtained the operation authority, the operation authority is opened to the workstation substation fault batch transfer human-machine interface that is currently obtaining the operation authority; Operate the power transfer plan on the substation fault batch transfer human-machine interface that has obtained the operation authority, and realize the self-healing of the substation full shutdown fault through the interface operation instructions; The locking logic is checked before all operations. For each operation on the interface, after clicking to trigger the processing event, it is determined whether the operator has the operation authority for the plant station. No operation can be performed without authority.

9. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 4, the substation power transfer plan editing interface includes: View the number of all schemes for the target power transfer line, the time of power transfer scheme generation, the added remarks, the detailed operation steps of each power transfer scheme and the scheme priority ranking information, provide scheme generation request, scheme priority adjustment, one-key pinning of schemes, scheme editing, scheme deletion instructions and scheme export entry, and expand the scheme editing interface by default after the substation fault batch power transfer human-machine interface is opened, and perform scheme editing operations in the scheme editing interface; Classify all substations according to the area to which they belong, view the line transfer and restoration plan of the target plant and the information of each transfer plan, and provide an interactive interface for plan operation. The main interface provides right-click generation of the whole station plan, line plan generation, busbar plan generation, substation plan saving and plan export functions; Select the area to which the substation belongs, and list all substations belonging to the area. Select a substation to enter the line selection interface for preparing the line plan to which the substation belongs; Select any bus to view all the scheme line editing interfaces of the feeder corresponding to the target bus under the plant station; Select any line to view all operation steps of this line, including the name of the opposite line, the name of the operating device, and the status of the operating device; Select any line to view all information about this line and operate the plan that pops up, including editing the plan, deleting the plan, raising / lowering the priority and pinning it with one click.

10. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 9, characterized in that: The right-click operation instructions for substation scheme editing include the right-click operation instructions on the main interface, the right-click operation instructions on the scheme details page interface, and the right-click scheme editing operation instructions on the scheme details page interface, specifically including: The right-click operation commands on the main interface include the command for generating the whole station plan, the command for generating the busbar plan, the command for generating the line plan, the command for saving the substation plan, and the command for exporting the plan; The right-click operation commands on the plan details page include increasing priority, decreasing priority, pinning a plan, editing a plan, and deleting a plan. The right-click editing commands on the plan details page include move up, move down, add, save, and delete.

11. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 4, the substation manual intervention scheme verification operation instructions of the substation transfer scheme verification include a mandatory verification pass instruction, a priority increase instruction, a priority decrease instruction, and a single-line diagram pop-up instruction; The verification principles of substation power transfer plan include operation mode verification, power supply capacity verification, operation safety verification, line safety verification, diagram and model change verification, remote control operation safety verification, basic remote control data verification and topology five-defense verification.

12. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 4, the substation transfer plan verification page displays the line load on the outgoing side before execution, the line load on the incoming side before execution, the total load, the name of the opposite plant, the control switch, the connecting switch, the verification status and the reason for failure, and provides scheme verification mode selection, operation mode selection, remote control mode selection, verification entry, verification result display and manual intervention entry.

13. A method for medium voltage bus fault self-healing and substation fault batch power transfer according to claim 12, characterized in that: Verification modes include cold pour and hot pour; The operation modes include open first and close later and close first and open later. The cold reverse corresponds to the open first and close later operation mode, and the hot reverse corresponds to the close first and open later operation mode. The cold reverse is selected by default to handle the fault.

14. A method for medium voltage bus fault self-healing and substation fault batch power transfer according to claim 1, characterized in that: In step 4, after the scheme is successfully verified on the verification page, it is displayed in the scheme list on the scheme execution page. The substation scheme execution page specifically includes: The plan includes the line load on the outgoing side before execution, the line load on the incoming side before execution, the execution operation steps, the current execution status, the line load after outgoing transfer and the line load after incoming transfer after execution. The execution status includes the operator, guardian and machine node information, and provides dual authority verification instructions for operators and guardians, remote control mode selection, and the plan execution page provides preset execution buttons, execution mode selection, execution buttons and execution authority verification interaction channels, and displays the execution operation results in real time.

15. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 14, characterized in that: The substation remote control mode selection includes single-step remote control mode, sequential remote control mode and batch remote control mode, including: In the single-step remote control mode, the program is executed from top to bottom according to the sequence of programs. In the cold reversal mode, the switch opening and closing of each program is equipped with a program execution confirmation button, and the executor determines whether to continue the execution. The success or failure of the previous program does not affect the execution of the next program. In the hot reversal mode, the switch opening and closing of each program and the program execution confirmation button are set between programs. The executor determines whether to continue the execution. The success or failure of the previous program does not affect the execution of the next program. Sequential execution remote control mode, according to the scheme sorting, from top to bottom in sequence, until all records are executed, the success or failure of the previous scheme does not affect the execution of the next scheme; Batch execution of remote control mode, executing remote control of all switches in all line transfer schemes without manual intervention.

16. A method for medium voltage bus fault self-healing and substation fault batch power transfer according to claim 1, characterized in that: In step 4, the substation operation mode recovery interface is displayed, and the specific process includes: After the substation fault is eliminated and the busbar pressure loss is relieved, the operation mode recovery interface provides a power transfer plan to restore the original optimal operation mode, provides two pages of plan verification and plan execution, and provides a manual interaction entrance, allowing humans to decide whether to start the operation mode recovery process.

17. A medium voltage bus fault self-healing and substation fault batch power transfer method according to claim 1, characterized in that: In step 4, the substation history query page includes: Record the operation records of the plan execution and operation mode recovery pages. The substation history query page provides three tab pages for displaying all information, plan execution information and operation mode recovery information, respectively displaying the corresponding information, recording the operation records of the plan execution and operation mode recovery pages, and providing a plan export button to export the interface event records of the current history query page.

18. A medium-voltage busbar fault self-healing and substation fault batch power transfer self-healing system, used to implement a medium-voltage busbar fault self-healing and substation fault batch power transfer method according to any one of claims 1 to 17, characterized in that: Transfer plan acquisition module: used to open the substation fault batch transfer human-machine interface, send a substation plan generation request to the target plant station to obtain the associated load information corresponding to the generation request, perform real-time topology analysis based on the associated load information corresponding to the generation request, and obtain the substation transfer and restoration plan; Transfer plan processing module: It is used to store the plan data after filtering and prohibiting the transfer plan of the substation and sorting the priority of the substation plan, and send a processing end message to the substation batch transfer human-machine interface; Transfer plan viewing module: after sending the processing completion message to the substation batch transfer human-machine interface, it performs responsibility area authority verification and substation user login authority verification on the substation user login instruction, obtains the plant and station information within the responsibility area of ​​the logged-in user, and obtains the transfer plan of the target plant and station within the responsibility area; Substation batch transfer self-healing module: Verify the target plant station operation lock authority. After the authority verification is successful, the substation fault batch transfer human-machine interface is used to perform the substation transfer plan editing, substation transfer plan verification, substation transfer plan execution, substation operation mode recovery and substation history query on the target plant station in the responsibility area, and obtain the substation fault batch transfer module; Medium-voltage bus fault self-healing module: used to automatically sense medium-voltage bus undervoltage faults based on medium-voltage bus undervoltage fault judgment criteria, obtain medium-voltage bus transfer solutions through real-time topological analysis, call medium-voltage bus transfer and restoration solutions based on the medium-voltage bus human-machine operation interface, and build a medium-voltage bus fault self-healing model; Distribution network fault handling system construction module: used to combine the medium-voltage busbar fault self-healing model with the substation fault batch transfer model to build a distribution network fault handling model, realize medium-voltage busbar pressure loss fault self-healing and substation fault batch transfer.

19. A terminal comprising a processor and a storage medium; characterized in that: The storage medium is used to store instructions; The processor is used to operate according to the instructions to execute the steps of a medium-voltage bus fault self-healing and substation fault batch power transfer method according to any one of claims 1-17.

20. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of a method for medium-voltage bus fault self-healing and substation fault batch power transfer as described in any one of claims 1-17 are implemented.

Images