Distribution network self-healing management method and system

Abstract

The invention discloses a distribution network self-healing management method and system, and relates to the technical field of self-healing control of a distribution network, and the method comprises the steps: generating a fault log; automatically generating a fault log line attribute based on the line attribute managed by the line ledger; an operator initiates a self-healing action analysis application; auditing the self-healing action analysis list; automatically calculating a summary index based on the self-healing action analysis information; and generating a self-healing application evaluation criterion based on the self-healing action analysis summary index and the self-healing action analysis information. According to the method, by automatically generating the fault log and matching the line attributes, manual input errors are reduced, the response speed of fault processing is improved, the self-healing line investment, change and back operation application process is standardized, the operation normalization and accuracy are ensured, the management complexity and operation errors are reduced, and the management efficiency is improved. The automatic recording and analysis of the self-healing action are realized, the time required by manual analysis is reduced, and the fault processing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of self-healing control of distribution networks, and in particular to a distribution network self-healing management method and system. Background Art

[0002] With the increasing complexity and intelligence of power systems, the self-healing management technology of distribution networks has become a key link in ensuring power supply reliability. In the past few decades, distribution network self-healing technology has evolved from simple fault isolation to automated recovery. Existing distribution network self-healing management systems usually rely on monitoring systems such as SCADA and EMS to detect, locate and isolate power grid faults through preset logic and algorithms in order to restore power supply in the shortest possible time. However, these systems often focus on the speed of fault handling, while ignoring the quality and efficiency of fault handling, as well as in-depth analysis of fault data.

[0003] Although the prior art has improved the reliability of the distribution network to a certain extent, there are still many deficiencies in practical applications. First, the fault log generation of the existing system often relies on manual entry, which is not only inefficient but also prone to errors, resulting in the accuracy and timeliness of subsequent self-healing actions being affected. Secondly, the existing line ledger management lacks flexibility, and the application process for the investment, change and return of self-healing lines is cumbersome, which is not conducive to rapid response to power grid changes. In addition, the existing self-healing action analysis often lacks systematicity, and it is difficult to quantitatively evaluate the self-healing effect, thereby failing to provide effective decision support for distribution network self-healing management. In these aspects, the distribution network self-healing management method and system proposed in the present invention have significant advantages. The method automatically generates fault logs through an intelligent alarm diagnosis and release system, and combines the line ledger management information to realize the automatic analysis and summary of self-healing actions. At the same time, by introducing the self-healing application evaluation standard, the present invention can quantitatively evaluate the self-healing effect, provide a scientific and comprehensive decision-making basis for distribution network self-healing management, thereby improving the overall operation efficiency and power supply reliability of the distribution network.

[0004] In summary, the present invention aims at the deficiencies of the existing distribution network self-healing management technology and proposes a more efficient and accurate self-healing management method and system, which is expected to play an important role in the power system and further improve the self-healing ability and power supply quality of the distribution network. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] Therefore, the technical problem solved by the present invention is: in the existing distribution network self-healing management system, the generation of fault logs often relies on manual entry, which is not only inefficient, but also prone to data errors due to human factors. In the prior art, the correlation between line attribute information and fault logs is not close enough, resulting in a lack of necessary background information when analyzing self-healing actions. The existing self-healing action analysis process is cumbersome, involving multiple departments and links, resulting in a slow response speed of the self-healing action. The existing technology lacks effective means for quantitatively evaluating the self-healing effect, making it difficult to evaluate the actual effect of the self-healing action. The existing self-healing line commissioning, change and return application process is complicated and is not suitable for the rapidly changing power grid environment. The present invention improves the flexibility of line management by optimizing the commissioning, change and return application process of the self-healing line, so that the self-healing system can quickly adapt to changes in the power grid.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a distribution network self-healing management method, which comprises the following steps:

[0008] Generate fault logs; automatically generate fault log line attributes based on line attributes managed by line ledgers; operators initiate self-healing action analysis applications; review self-healing action analysis sheets; automatically calculate summary indicators based on self-healing action analysis information; generate self-healing application evaluation standards based on self-healing action analysis summary indicators and self-healing action analysis information.

[0009] As a preferred solution of the distribution network self-healing management method described in the present invention, the generating of the fault log includes the distribution network OMS intelligent alarm diagnosis publishing system publishing alarm information to generate the fault log or the dispatcher manually entering the fault log.

[0010] The line ledger management includes self-healing line commissioning application, self-healing line change application and self-healing line return application.

[0011] As a preferred solution of the distribution network self-healing management method described in the present invention, the self-healing line commissioning application includes that the distribution terminal operation and maintenance personnel report the feeder group self-healing function commissioning application form in the distribution network OMS system, and submit the self-healing path protection constant operation status and self-healing debugging report as attachments for review.

[0012] The terminal operation and maintenance related specialists shall verify and confirm the feasibility, rationality and correctness of the application information of the feeder group. The verification content shall include the wiring method of the line, the transfer capacity, the automation distribution and communication status, as well as the automation testing of the distribution terminal, the execution of the protection setting configuration, the correctness of the setting execution, and equipment defects.

[0013] Relay protection personnel review the correctness and rationality of the protection settings of the feeder group's distribution automation equipment and the rationality of the protection investment.

[0014] The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group input and whether the feeder group equipment has defects that affect the self-healing function. The dispatching automation personnel review and confirm that the feeder group is suitable for the master station self-healing function, that all automated terminals connected to the feeder group at the master station are in normal status, and complete the master station self-healing function test.

[0015] The on-duty controller checked that the self-healing function pressure plate and list function of the feeder single-line diagram of the distribution network master station OCS system were normal, and put the corresponding feeder self-healing function pressure plate and fully automatic function pressure plate into operation, and the locking pressure plate was not functionally locked.

[0016] The dispatching automation personnel archive the self-healing investment application form, update the self-healing line list, and publish it regularly.

[0017] As a preferred solution of the distribution network self-healing management method described in the present invention, the self-healing line change application includes that the distribution terminal operation and maintenance personnel initiate the feeder group self-healing function change application process in the distribution OMS system, and submit the self-healing path protection constant operation status and self-healing debugging report as attachments for review.

[0018] The relevant personnel of the terminal operation and maintenance department shall verify the rationality and necessity of the reasons for the change, and re-check and confirm the rationality of the functions put into use after the feeder group is changed and the correctness of the application information. The verification content shall at least include the wiring method of the line, the transfer capacity, the automation layout and communication status, as well as the automation testing of the distribution terminal, the execution of the protection setting configuration, and equipment defects.

[0019] Relay protection professionals review the correctness and rationality of the automatic switch protection configuration after the feeder group is changed.

[0020] The distribution network operation specialist shall review the rationality and necessity of the changes, and the equipment operation after the changes shall be suitable for the use of self-healing functions.

[0021] Dispatching automation professionals review the rationality of the feeder group's changes to the master station's self-healing function, and ensure that all automation terminals connected to the feeder group are in normal condition. They also change the distribution network master station's feeder group's self-healing function configuration according to the changes.

[0022] The on-duty controller checks and confirms that the self-healing function pressure plate function and list function of the distribution network master station system feeder single-line diagram are normal, and re-activates the corresponding feeder self-healing function pressure plate and fully automatic function pressure plate, checks the situation after the self-healing feeder group is changed, and re-activates the daily dispatch monitoring and archives the self-healing change application.

[0023] As a preferred solution of the distribution network self-healing management method described in the present invention, the self-healing line return application includes: the distribution terminal operation and maintenance personnel initiating the feeder group self-healing return process in the distribution network OMS system, and the relevant specialists of the terminal operation and maintenance department confirming the necessity of the return function and the rationality of the return reason.

[0024] The relay protection personnel review the correctness and rationality of the changes in the feeder group distribution terminal return protection.

[0025] The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group withdrawal.

[0026] The dispatching automation personnel review and confirm the rationality of the feeder group's exit from the master station self-healing function, delete the relevant parameter configuration and self-healing logo of the distribution network master station feeder group self-healing function configuration tool, and exit the self-healing function in the background.

[0027] The on-duty controller confirms that the self-healing function of the feeder group has been decommissioned, exits daily dispatch monitoring, and archives the self-healing decommissioning application.

[0028] As a preferred solution of the distribution network self-healing management method described in the present invention, the self-healing action analysis includes basic information, fault information, self-healing action information, technical parameters, processing process, analysis and summary, and remarks.

[0029] As a preferred scheme of the distribution network self-healing management method described in the present invention, the self-healing action analysis and summary include automatically calculating the number of permanent faults of the medium-voltage distribution network, the number of system self-healing startups, the number of successful fault isolations, the number of successful front-end power restorations, the number of occurrences outside the branch line self-healing path, the number of front-end times of the connecting switch, the number of successful back-end power restorations, the number of self-healing power restoration failures, the effectiveness of self-healing power restoration, the success rate of self-healing actions, the success rate of connecting switch self-healing actions, the proportion of self-healing actions in medium-voltage permanent faults, the number of households saving medium-voltage time, the number of people saving for line fault investigation, the number of vehicles saving for line fault investigation, the increase in power supply, and the number of power incidents avoided.

[0030] The application evaluation standards include distribution network self-healing commissioning management, distribution network self-healing operation management, self-healing debugging and commissioning data, self-healing ledger, distribution network self-healing planning, distribution network self-healing construction plan, on-site operation management and control, master station self-healing function construction, number of self-healing actions, self-healing action analysis, reduction of fault power outage time, self-healing application evaluation indicators and ranking calculation based on the evaluation content.

[0031] Another object of the present invention is to provide a distribution network self-healing management system, which can solve the shortcomings of the existing distribution network self-healing management system in terms of fault handling automation, data processing accuracy, system response speed and self-healing effect evaluation by integrating functions such as intelligent alarm diagnosis, automatic fault log generation, line attribute matching, simplified self-healing action analysis process and quantitative self-healing effect evaluation.

[0032] In order to solve the above technical problems, the present invention provides the following technical solutions: a distribution network self-healing management system, including a distribution network OMS system, a dispatching automation system, a line ledger management system and a self-healing application evaluation system.

[0033] The distribution network OMS system is used to publish alarm information and generate fault logs.

[0034] Used by distribution terminal operation and maintenance personnel to report the application for commissioning, change, and return of the feeder group self-healing function.

[0035] It is used by the on-duty controller to check the self-healing function of the feeder single-line diagram of the distribution network master station OCS system.

[0036] The dispatching automation system examines the correctness and rationality of the protection settings of the feeder group distribution automation equipment.

[0037] Review and confirm that the feeder group is suitable for the main station self-healing function.

[0038] Update the self-healing line list and publish it regularly.

[0039] Review the rationality of changing the self-healing function of the master station of the feeder group, and change the self-healing function configuration of the feeder group of the distribution network master station.

[0040] Delete the parameter configuration and self-healing flag related to the self-healing function configuration tool of the distribution network master station feeder group.

[0041] The line record management system manages the application for commissioning, changing, and returning the self-healing line.

[0042] Stores line attribute information for automatically generating fault log line attributes.

[0043] The self-healing application evaluation system collects and stores basic information of self-healing actions, fault information, self-healing action information, technical parameters, processing procedures, analysis and summary, and remarks.

[0044] A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned distribution network self-healing management method when executing the computer program.

[0045] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the distribution network self-healing management method as described above.

[0046] Beneficial effects of the present invention: The present invention reduces manual input errors and improves the response speed of fault handling by automatically generating fault logs and matching line attributes. The standardized self-healing line commissioning, change and return application process ensures the standardization and accuracy of operations, reduces management complexity and operational errors, realizes automatic recording and analysis of self-healing actions, reduces the time required for manual analysis, and improves the efficiency of fault handling. Detailed log records provide accurate data support for fault cause analysis and the formulation of preventive measures. By automatically calculating summary indicators, such as the number of self-healing actions and the reduction of fault power outage time, the present invention realizes the quantitative evaluation of self-healing effects and the establishment of evaluation standards, such as distribution network self-healing commissioning management and operation management. It provides a scientific basis for the performance evaluation and continuous improvement of the self-healing system, reduces the number of people and vehicles required for troubleshooting, reduces operation and maintenance costs, improves power supply through optimization of self-healing actions, avoids power incidents, and saves potential economic losses. The system quickly responds to the application for commissioning, change, and return of self-healing lines, improves the adaptability of the distribution network to a changing environment, and the construction and testing of the self-healing function of the master station ensures the real-time update and optimization of the system functions, enhances the overall flexibility of the system, monitors the operating status of the self-healing function in real time, and provides dispatchers with rapid decision-making support. Through the analysis and summary of self-healing actions, it provides the management with an intuitive display of the self-healing effect of the distribution network, which helps to formulate long-term plans and strategies. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0048] Figure 1 An overall flow chart of a distribution network self-healing management method provided for the first embodiment of the present invention.

[0049] Figure 2 A flow chart of a method for applying for self-healing line commissioning of a distribution network master station in a distribution network self-healing management method provided in a first embodiment of the present invention.

[0050] Figure 3 A flow chart of a method for applying for self-healing line commissioning of a distribution network master station in a distribution network self-healing management method provided in a first embodiment of the present invention.

[0051] Figure 4 A flow chart of a method for applying for changing a self-healing line of a distribution network master station in a distribution network self-healing management method provided in a first embodiment of the present invention.

[0052] Figure 5A flow chart of a method for applying for changing a self-healing line of a distribution network master station in a distribution network self-healing management method provided in a first embodiment of the present invention.

[0053] Figure 6 A flow chart of a distribution network master station self-healing line return application method for a distribution network self-healing management method provided in the first embodiment of the present invention.

[0054] Figure 7 A flow chart of a distribution network master station self-healing line return application method for a distribution network self-healing management method provided in the first embodiment of the present invention.

[0055] Figure 8 A flow chart of a distribution network self-healing action analysis method in a distribution network self-healing management method provided in the first embodiment of the present invention.

[0056] Fig. 9 A flow chart of a method for analyzing non-self-healing actions of a distribution network in a distribution network self-healing management method provided in the first embodiment of the present invention.

[0057] Fig.10 A framework diagram of a distribution network self-healing application evaluation standard in a distribution network self-healing management method provided in the first embodiment of the present invention.

[0058] Fig.11 A flow chart summarizing the analysis of distribution network self-healing actions in a distribution network self-healing management method provided in the first embodiment of the present invention.

[0059] Fig.12 This is an overall framework diagram of a distribution network self-healing management system provided by the second embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0061] Example 1, reference Figures 1 to 11 , is an embodiment of the present invention, and provides a distribution network self-healing management method, characterized in that:

[0062] S1: The distribution network OMS intelligent alarm diagnosis publishing system publishes alarm information to generate fault logs, or the dispatcher manually enters the fault logs.

[0063] Fault logs include fault logs generated by the distribution network OMS intelligent alarm diagnosis and release system when it releases alarm information or fault logs manually entered by dispatchers.

[0064] S2: Automatically generate fault log line attributes based on line attributes managed by line records.

[0065] Line ledger management includes application for self-healing line commissioning, application for self-healing line change, and application for self-healing line return.

[0066] Further explanation. Figure 2 , Figure 3 This is a picture, but it is not clear, so it is divided into two pictures. Figure 4-Figure 7 Similarly, if Figure 2-Figure 3 The self-healing line commissioning application shown includes that the distribution terminal operation and maintenance personnel report the feeder group self-healing function commissioning application form in the distribution network OMS system, and submit the self-healing path protection constant operation status and self-healing debugging report as attachments for review.

[0067] The terminal operation and maintenance related specialists shall verify and confirm the feasibility, rationality and correctness of the application information of the feeder group. The verification content shall include the wiring method of the line, the transfer capacity, the automation distribution and communication status, as well as the automation testing of the distribution terminal, the execution of the protection setting configuration, the correctness of the setting execution, and equipment defects.

[0068] Relay protection personnel review the correctness and rationality of the protection settings of the feeder group's distribution automation equipment and the rationality of the protection investment.

[0069] The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group input and whether the feeder group equipment has defects that affect the self-healing function. The dispatching automation personnel review and confirm that the feeder group is suitable for the master station self-healing function, that all automated terminals connected to the feeder group at the master station are in normal status, and complete the master station self-healing function test.

[0070] The on-duty controller checked that the self-healing function pressure plate and list function of the feeder single-line diagram of the distribution network master station OCS system were normal, and put the corresponding feeder self-healing function pressure plate and fully automatic function pressure plate into operation, and the locking pressure plate was not functionally locked.

[0071] The dispatching automation personnel archive the self-healing investment application form, update the self-healing line list, and publish it regularly.

[0072] like Figure 4-Figure 5 As shown, the self-healing line change application includes that the distribution terminal operation and maintenance personnel initiate the feeder group self-healing function change application process in the distribution OMS system, and submit the self-healing path protection constant operation status and self-healing debugging report as attachments for review.

[0073] The relevant personnel of the terminal operation and maintenance department shall verify the rationality and necessity of the reasons for the change, and re-check and confirm the rationality of the functions put into use after the feeder group is changed and the correctness of the application information. The verification content shall at least include the wiring method of the line, the transfer capacity, the automation layout and communication status, as well as the automation testing of the distribution terminal, the execution of the protection setting configuration, and equipment defects.

[0074] Relay protection professionals review the correctness and rationality of the automatic switch protection configuration after the feeder group is changed.

[0075] The distribution network operation specialist shall review the rationality and necessity of the changes, and the equipment operation after the changes shall be suitable for the use of self-healing functions.

[0076] Dispatching automation professionals review the rationality of the feeder group's changes to the master station's self-healing function, and ensure that all automation terminals connected to the feeder group are in normal condition. They also change the distribution network master station's feeder group's self-healing function configuration according to the changes.

[0077] The on-duty controller checks and confirms that the self-healing function pressure plate function and list function of the distribution network master station system feeder single-line diagram are normal, and re-activates the corresponding feeder self-healing function pressure plate and fully automatic function pressure plate, checks the situation after the self-healing feeder group is changed, and re-activates the daily dispatch monitoring and archives the self-healing change application.

[0078] like Figure 6-Figure 7 As shown, the self-healing line return application includes the distribution terminal operation and maintenance personnel initiating the feeder group self-healing return process in the distribution network OMS system, and the relevant personnel of the terminal operation and maintenance department confirming the necessity of the return function and the rationality of the return reason.

[0079] The relay protection personnel review the correctness and rationality of the changes in the feeder group distribution terminal return protection.

[0080] The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group withdrawal.

[0081] The dispatching automation personnel review and confirm the rationality of the feeder group's exit from the master station self-healing function, delete the relevant parameter configuration and self-healing logo of the distribution network master station feeder group self-healing function configuration tool, and exit the self-healing function in the background.

[0082] The on-duty controller confirms that the self-healing function of the feeder group has been decommissioned, exits daily dispatch monitoring, and archives the self-healing decommissioning application.

[0083] S3: The district and county bureau operation personnel initiate a self-healing action analysis application based on the fault log of the permanent fault and the self-healing line.

[0084] S4: Automation / scheduling professionals review the self-healing action analysis sheet.

[0085] like Figure 8 As shown, the self-healing action analysis includes.

[0086] 1 Basic information

[0087] Event number: A unique identifier assigned to each self-healing action to facilitate subsequent query and management.

[0088] Occurrence time: Record the specific date and time when the self-healing action occurs.

[0089] Location / Area: Indicates the specific location or area of ​​the distribution network where the self-healing action takes place.

[0090] 2) Fault information

[0091] Fault type: such as short circuit, grounding, overload, etc.

[0092] Fault location: The specific location of the fault point determined by fault location technology.

[0093] Fault description: A brief description of the fault phenomenon, such as abnormal current, voltage fluctuation, etc.

[0094] 3) Self-healing action information

[0095] Action time: The specific time when the self-healing action starts.

[0096] Action type: such as fault isolation, load transfer, power restoration to non-fault areas, etc.

[0097] Executing device: The name and number of the device involved in the self-healing action, such as smart switches, circuit breakers, etc.

[0098] Action result: whether the self-healing action is successfully executed, and the effect evaluation after execution.

[0099] 4) Technical parameters

[0100] Current / voltage values: electrical parameter values ​​such as current and voltage before and after the fault occurs.

[0101] Protection settings: Protection settings related to self-healing action, such as zero-sequence current setting, overcurrent setting, etc.

[0102] Delay setting: Delay setting before the self-healing action starts to avoid false action.

[0103] 5) Processing

[0104] Fault detection: record the methods and processes of fault detection.

[0105] Decision making: The process of making self-healing action decisions based on fault information and analysis results.

[0106] Action execution: the specific execution steps and process of the self-healing action.

[0107] Subsequent processing: Subsequent processing measures after the self-healing action is executed, such as replacement of faulty equipment and system recovery.

[0108] 6) Analysis and summary

[0109] Success Factor Analysis: Analyze the key factors for the successful execution of self-healing actions.

[0110] Failure cause analysis: If the self-healing action is not successfully executed, it is necessary to analyze the failure cause and propose improvement measures.

[0111] Lessons learned: Summarize the lessons learned from this self-healing action to provide a reference for similar events in the future.

[0112] 7) Notes

[0113] Notes: Record some special circumstances or matters that require attention.

[0114] Non-self-healing action analysis Fig. 9 As shown:

[0115] 1) Collect and record log information: record log information related to non-self-healing actions, including electrical quantity data before and after the fault occurs, switch operation records, protection signals, etc.

[0116] 2) Analyze the reasons for self-healing failure: Based on the collected log information, conduct an in-depth analysis of the reasons why the self-healing function failed to start or execute successfully. Possible reasons include communication failure, data quality issues, insufficient computing power, policy formulation errors, etc.

[0117] 3) Assess the scope of impact: Analyze the impact of self-healing failure on power supply in non-fault areas, as well as the possible economic losses and social impacts.

[0118] S5: After the self-healing action analysis sheet is reviewed, the summary indicators are automatically calculated based on the self-healing action analysis information.

[0119] S6: Generate self-healing application evaluation criteria based on self-healing action analysis summary indicators and self-healing action analysis information;

[0120] like Fig.10 As shown, the self-healing action analysis summary includes automatically calculating the number of permanent faults of the medium-voltage distribution network, the number of system self-healing startups, the number of successful fault isolations, the number of successful front-end power restorations, the number of times outside the self-healing path of the branch line, the number of times at the front end of the tie switch, the number of successful back-end power restorations, the number of self-healing power restoration failures, the effectiveness of self-healing power restoration, the success rate of self-healing actions, the success rate of tie switch self-healing actions, the proportion of self-healing actions in medium-voltage permanent faults, the number of households saving medium-voltage time, the number of people saving for line fault investigations, the number of vehicles saving for line fault investigations, the amount of power supply increased, and the number of power events avoided;

[0121] like Fig.11 As shown, the application evaluation criteria include:

[0122] 1) Distribution network self-healing commissioning management: Check whether the distribution network self-healing commissioning management process has been established and whether the process meets the requirements of the provincial grid company.

[0123] 2) Distribution network self-healing operation management: Check whether management requirements and related business processes such as self-healing operation and maintenance, changes, returns, and master station operation management have been established.

[0124] 3) Self-healing commissioning and commissioning data: Spot check 10 self-healing commissioning records in the past three months, and check whether the self-healing commissioning and commissioning data are complete and comprehensive in accordance with the relevant requirements of the self-healing management business guidance.

[0125] 4) Self-healing records: Whether the self-healing records are complete and accurate, and whether the self-healing operation status of the relevant lines is correct.

[0126] 5) Distribution network self-healing plan: Check whether the feasibility study plan for one county per year is input into the feasibility study plan for one county per year, the problem database and the planning database in a targeted manner according to the problems encountered during the self-healing application process, and implement it as required.

[0127] 6) Distribution network self-healing construction plan: Check whether there is a clear self-healing construction management and control plan. The management and control plan should at least include key time nodes such as on-site investigation of self-healing lines, preparation and review of on-site construction plans, work plan implementation time, and commissioning time.

[0128] 7) On-site operation control: Check the on-site operation related documents of the self-healing lines that have been put into operation. The documents should include work tickets, operation tickets, construction plans, etc.

[0129] 8) Construction of master station self-healing function: Check whether the distribution network master station system has self-healing analysis, self-healing operation and withdrawal, automatic locking, open and closed loop, self-healing simulation test functions and carry out practical applications.

[0130] 9) Number of self-healing actions: Check the cumulative number of self-healing actions and successful power restoration in the master station system in the past three months.

[0131] 10) Self-healing action analysis: Check the self-healing action analysis of the distribution network, and randomly check the ten self-healing actions in the past three months to determine whether each self-healing action is analyzed.

[0132] 11) Reduce fault outage time: Check the comparison between fault outage time before and after the application of self-healing construction.

[0133] 12) Self-healing application evaluation indicators: distribution network self-healing commissioning management, distribution network self-healing operation management, self-healing debugging and commissioning data, self-healing ledger, distribution network self-healing construction plan, on-site operation control, master station self-healing function construction, medium voltage permanent self-healing action success rate, self-healing action analysis, number of households saved during power outages, reduction of power outage time, self-healing coverage rate, self-healing effective coverage rate, self-healing effective coverage change increment, self-healing action success rate, self-healing power restoration effect, interconnection switch self-healing action success rate, interconnection switch three-remote ratio, medium voltage line transfer power supply rate.

[0134] 13) Calculate ranking based on evaluation content.

[0135] Example 2, reference Fig.12 , which is an embodiment of the present invention, provides a system for a distribution network self-healing management method, characterized by: including a distribution network OMS system 100, a dispatching automation system 200, a line ledger management system 300 and a self-healing application evaluation system 400.

[0136] The distribution network OMS system 100 is used to publish alarm information and generate fault logs.

[0137] Used by distribution terminal operation and maintenance personnel to report the application for commissioning, change, and return of the feeder group self-healing function.

[0138] It is used by the on-duty controller to check the self-healing function of the feeder single-line diagram of the distribution network master station OCS system.

[0139] The dispatching automation system 200 examines the correctness and rationality of the protection settings of the feeder group distribution automation equipment.

[0140] Review and confirm that the feeder group is suitable for the main station self-healing function.

[0141] Update the self-healing line list and publish it regularly.

[0142] Review the rationality of changing the self-healing function of the master station of the feeder group, and change the self-healing function configuration of the feeder group of the distribution network master station.

[0143] Delete the parameter configuration and self-healing flag related to the self-healing function configuration tool of the distribution network master station feeder group.

[0144] The line record management system 300 manages the application for commissioning, changing, and returning the self-healing line.

[0145] Stores line attribute information for automatically generating fault log line attributes.

[0146] The self-healing application evaluation system 400 collects and stores basic information of self-healing actions, fault information, self-healing action information, technical parameters, processing procedures, analysis and summary, and remarks.

[0147] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

[0148] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0149] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0150] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0151] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A distribution network self-healing management method, characterized in that: include: Generate fault logs; Automatically generate fault log line attributes based on line attributes managed by line records; The operator initiates a self-healing action analysis application; Review the self-healing action analysis sheet; Automatically calculate summary indicators based on self-healing action analysis information; The self-healing application evaluation criteria are generated based on the self-healing action analysis summary indicators and self-healing action analysis information.

2. A distribution network self-healing management method as claimed in claim 1, characterized in that: Generating a fault log includes the distribution network OMS intelligent alarm diagnosis publishing system publishing alarm information to generate a fault log or the dispatcher manually entering the fault log; The line ledger management includes self-healing line commissioning application, self-healing line change application and self-healing line return application.

3. A distribution network self-healing management method as claimed in claim 2, characterized in that: The self-healing line commissioning application includes that the distribution terminal operation and maintenance personnel submit the feeder group self-healing function commissioning application form in the distribution network OMS system, and submit the self-healing path protection setting value operation status and self-healing commissioning report as attachments for review; Terminal operation and maintenance personnel shall verify and confirm the feasibility, rationality and correctness of the application information of the feeder group. The verification content shall include the wiring mode of the line, the transfer capacity, the automation point layout and communication status, as well as the automation test of the distribution terminal, the execution of the protection setting configuration, the correctness of the setting execution, and equipment defects; The relay protection personnel shall review the correctness and rationality of the protection setting values ​​of the feeder group distribution automation equipment and the rationality of the protection input; The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group input and whether the feeder group equipment has defects that affect the self-healing function. The dispatching automation personnel review and confirm that the feeder group is suitable for the master station self-healing function, that all automation terminals connected to the master station are in normal status, and complete the master station self-healing function test; The on-duty controller checks that the self-healing function pressure plate and list function of the feeder single-line diagram of the distribution network master station OCS system are normal, and the corresponding feeder self-healing function pressure plate and full-automatic function pressure plate are put into use, and the locking pressure plate has no functional locking; The dispatching automation personnel archive the self-healing investment application form, update the self-healing line list, and publish it regularly.

4. A distribution network self-healing management method as claimed in claim 3, characterized in that: The self-healing line change application includes that the distribution terminal operation and maintenance personnel initiate the feeder group self-healing function change application process in the distribution OMS system, and submit the self-healing path protection setting operation status and self-healing commissioning report as attachments for review; The terminal operation and maintenance department shall be responsible for checking the rationality and necessity of the reasons for the change, and re-checking and confirming the rationality of the function put into use after the feeder group is changed, and the correctness of the application information. The content of the check shall at least include the wiring mode of the line, the transfer capacity, the automation layout and communication status, as well as the automation test of the distribution terminal, the execution of the protection setting configuration, and the equipment defects; Relay protection professionals review the correctness and rationality of the automatic switch protection configuration after the feeder group is changed; The distribution network operation department is responsible for reviewing the rationality and necessity of the changes, and the equipment operation after the changes is suitable for the self-healing function; The dispatching automation professionals shall review the rationality of the feeder group's changes to the master station's self-healing function, and the feeder group's access to the master station's all automation terminals shall be in normal condition, and the self-healing function configuration of the distribution network master station's feeder group shall be changed according to the changes; The on-duty controller checks and confirms that the self-healing function pressure plate function and list function of the distribution network master station system feeder single-line diagram are normal, and re-activates the corresponding feeder self-healing function pressure plate and fully automatic function pressure plate, checks the situation after the self-healing feeder group is changed, and re-activates the daily dispatch monitoring and archives the self-healing change application.

5. A distribution network self-healing management method as claimed in claim 4, characterized in that: The self-healing line return application includes: the distribution terminal operation and maintenance personnel initiate the feeder group self-healing return process in the distribution network OMS system, and the relevant personnel of the terminal operation and maintenance department confirm the necessity of the return function and the rationality of the return reason; The relay protection personnel shall review the correctness and rationality of the change of the feeder group distribution terminal return protection; The distribution network operation department is responsible for reviewing the necessity and rationality of the feeder group withdrawal; The dispatching automation personnel review and confirm the rationality of the feeder group's exit from the master station self-healing function, delete the relevant parameter configuration and self-healing flag of the distribution network master station feeder group self-healing function configuration tool, and exit the self-healing function in the background; The on-duty controller confirms that the self-healing function of the feeder group has been decommissioned, exits daily dispatch monitoring, and archives the self-healing decommissioning application.

6. A distribution network self-healing management method as claimed in claim 5, characterized in that: The self-healing action analysis includes basic information, fault information, self-healing action information, technical parameters, processing procedures, analysis and summary, and remarks.

7. A distribution network self-healing management method as claimed in claim 6, characterized in that: The self-healing action analysis summary includes automatically calculating the number of permanent faults of the medium-voltage distribution network, the number of system self-healing startups, the number of successful fault isolations, the number of successful front-end power restorations, the number of times outside the self-healing path of the branch line, the number of times at the front end of the tie switch, the number of successful back-end power restorations, the number of self-healing power restoration failures, the effectiveness of self-healing power restoration, the success rate of self-healing actions, the success rate of tie switch self-healing actions, the proportion of self-healing actions in medium-voltage permanent faults, the number of households saving medium-voltage time, the number of people saving for line fault investigations, the number of vehicles saving for line fault investigations, the amount of power supply increased, and the number of power events avoided; The application evaluation standards include distribution network self-healing commissioning management, distribution network self-healing operation management, self-healing debugging and commissioning data, self-healing ledger, distribution network self-healing planning, distribution network self-healing construction plan, on-site operation management and control, master station self-healing function construction, number of self-healing actions, self-healing action analysis, reduction of fault power outage time, self-healing application evaluation indicators and ranking calculation based on the evaluation content.

8. A system using a distribution network self-healing management method as claimed in any one of claims 1 to 7, characterized in that: It includes a distribution network OMS system (100), a dispatching automation system (200), a line account management system (300) and a self-healing application evaluation system (400); The distribution network OMS system (100) is used to issue alarm information and generate fault logs; Used by distribution terminal operation and maintenance personnel to report the application for the self-healing function of the feeder group to be put into use, changed, or returned; Used by on-duty controllers to check the self-healing function of the feeder single-line diagram of the distribution network master station OCS system; The dispatching automation system (200) examines the correctness and rationality of the protection setting values ​​of the feeder group distribution automation equipment; Review and confirm that the feeder group is suitable for the master station self-healing function; Update the self-healing line list and publish it regularly; Review the rationality of changing the self-healing function of the master station of the feeder group, and change the self-healing function configuration of the feeder group of the distribution network master station; Delete the parameter configuration and self-healing flag related to the self-healing function configuration tool of the distribution network master station feeder group; The line record management system (300) manages the application for the commissioning, modification and return of the self-healing line; Store line attribute information for automatically generating fault log line attributes; The self-healing application evaluation system (400) collects and stores basic information of self-healing actions, fault information, self-healing action information, technical parameters, processing procedures, analysis and summary, and remarks.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of a distribution network self-healing management method described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of a distribution network self-healing management method as described in any one of claims 1 to 7 are implemented.

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