CN113640601B - Power distribution network fault research and judgment post analysis system and method - Google Patents
Power distribution network fault research and judgment post analysis system and method Download PDFInfo
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- CN113640601B CN113640601B CN202110870059.6A CN202110870059A CN113640601B CN 113640601 B CN113640601 B CN 113640601B CN 202110870059 A CN202110870059 A CN 202110870059A CN 113640601 B CN113640601 B CN 113640601B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention provides a power distribution network fault studying and judging post analysis system and method, which are characterized by comprising the following steps: the fault analysis system comprises a fault brief report generation module, a fault treatment overall process time consumption statistics module, a fault electric quantity calculation module and a fault study and judgment evaluation module; the fault brief generating module is used for abstracting and summarizing the key points of fault disposal to form brief; the fault handling overall process time consumption counting module is used for recording and analyzing each node change in the handling process to obtain overall process time consumption information aiming at each fault; the fault electric quantity calculation module is used for calculating the power failure electric quantity and the early power restoration electric quantity of the current fault; and the fault research and judgment evaluation module is used for evaluating faults from three levels of terminal action, power distribution master station research and judgment and remote control execution.
Description
Technical Field
The invention relates to the technical field of power distribution automation of a power system, in particular to a power distribution network fault studying and judging post analysis system and method.
Background
By the informatization transformation of the power system, various data information of the power system in the operation process can be collected and stored at present, including fault case data. However, in the prior art, due to the fact that problems such as data quality and multi-system interaction affect fault study and judgment basic data, and deviation exists between a study and judgment conclusion and an actual fault situation, a scheme capable of accurately extracting and studying and judging fault information of a power distribution network is needed to achieve effective utilization of the information, and therefore real improvement and promotion of the information-based distribution network system are achieved.
Disclosure of Invention
The invention provides a power distribution network fault studying and judging after-event analysis system and a power distribution network fault studying and judging after-event analysis method, aiming at the defects and the defects in the prior art, and based on the requirements of on-site actual fault case analysis and scheduling application and the mining and analysis of historical data, the fault information is effectively utilized. The method is characterized in that a distribution automation main station is used as a basic data platform, an interface for interaction between abundant terminal data resources of the distribution main station and an external system is integrated in a comprehensive application manner, data extraction, evaluation and analysis are carried out on contents such as disposal timeliness, fault study and judgment conditions, terminal action information, remote control operation information and the like of each node in the whole study and judgment process treatment on the basis of the existing system application, and process treatment is initiated on terminal defects confirmed by analysis.
The technical scheme is as follows:
the utility model provides a distribution network fault is studied and judged post-event analytic system which characterized in that includes: the fault analysis system comprises a fault brief report generation module, a fault treatment overall process time consumption statistics module, a fault electric quantity calculation module and a fault study and judgment evaluation module;
the fault brief report generation module is used for abstracting and summarizing the key points of fault handling to form brief reports; the key points comprise failure occurrence reasons, failure influence ranges and treatment results;
the fault handling overall process time consumption counting module is used for recording and analyzing each node change in the handling process to obtain overall process time consumption information and recording specific operator information in the fault handling process for each fault;
the fault electric quantity calculation module is used for recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by power failure, and calculating the power failure loss electric quantity and the advanced power recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault;
the fault studying and judging evaluation module is used for evaluating faults from three levels of terminal action, power distribution main station studying and judging and remote control execution respectively by combining studying and judging data and fault release records, planned power failure data and operation data of a dispatcher in the DMS system.
Further, the system also comprises a defect closed-loop management module; the defect closed-loop management module initiates a defect control flow to a terminal or equipment which is judged and evaluated as a defect according to the evaluation result of the fault judging and evaluating module and in combination with the defect flow of the power distribution network so as to realize on-line closed-loop control of the defect;
the types of the defects comprise terminal misoperation, terminal refusal, missed report, remote control failure, equipment ledger error and terminal false report/missed report.
Further, the data source of the fault brief report generation module is a fault brief report log in the scheduling fault record list;
the main points of the fault influence range are refined as follows: recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by the power failure; the main points of the disposal result are refined as follows: and displaying the final condition of the current fault handling, including the conditions of normal power transmission of the fault, no need of emergency repair, short-time fault and false alarm.
Further, the overall fault handling process time consumption statistic module comprises:
the fault handling node time analysis submodule processes the flow node time record and comprises: signal action, judging a popup window, issuing power failure, isolating power transfer, allowing emergency repair, ending emergency repair, completing power transmission and filing time;
the processing link time consumption statistics submodule comprises the following recorded contents: time-consuming node recording of fault sensing, fault analysis, isolated power transfer, emergency repair connection, fault emergency repair and power transmission operation;
and the scheduling personnel handling efficiency statistics submodule is used for counting fault handling conditions in a period of time from the perspective of scheduling personnel, and comprises information of the number of faults handled by each person, the number of fault classification handling, the number of orders issued by the fault handling, the number of fault remote control operations and the time-consuming conditions of each fault handling link.
Further, in the fault study and evaluation module:
the terminal action evaluation is used for evaluating three types of processes, namely short-circuit faults, ground loss faults and manual fault release;
the evaluation of the manual release fault adopts a short-circuit fault evaluation rule;
for the flow of false alarm filing, directly evaluating all terminals corresponding to the sensing signals as false alarms; the power distribution master station research and evaluation comprises trip point correctness evaluation, fault interval correctness evaluation, power failure range correctness evaluation, isolation power conversion scheme correctness evaluation and out-of-place line selection conclusion evaluation; the remote control execution evaluation was: and counting the remote control execution result in the operation record generated in the fault handling process, and counting the number of switches which are successfully executed in the remote control mode and the number of switches which are failed in the remote control mode.
And according to the analysis method of the power distribution network fault research and judgment post analysis system, the method is characterized by comprising the following steps:
step S1: extracting and summarizing the main points of the fault disposal to form a fault brief report; the key points comprise failure occurrence reasons, failure influence ranges and treatment results;
step S2: counting the consumed time of the whole fault handling process, recording and analyzing the change of each node in the handling process, and simultaneously recording the information of specific operators in the fault handling process;
and step S3: calculating the fault electric quantity, namely recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by the power failure, and calculating the power failure loss electric quantity and the advanced recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault;
and step S4: and (4) carrying out fault study and judgment evaluation, and evaluating the fault from three levels of terminal action, power distribution main station study and judgment and remote control execution respectively by combining study and judgment data in a DMS system, fault release records, planned power failure data and operation data of a dispatcher.
Further, the method also comprises the step S5: defect closed-loop management: and based on the steps S1 to S4, a defect control flow is initiated for the terminal or equipment which is researched, judged and evaluated to be defective in combination with the defect flow of the power distribution network, so that the defect online closed-loop control is realized.
And an electronic device, comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor implements the steps of the analysis method of the power distribution network fault judging post-event analysis system when executing the program.
And a non-transitory computer readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the analysis method of the power distribution network fault judging post-event analysis system as described above.
Compared with the prior art, the invention and the preferred scheme thereof have the following beneficial effects:
1. the fault briefing module is convenient for dispatching management personnel to quickly know relevant important information of the fault when backtracking and analyzing the fault and timely know the influence range of the fault.
2. The completion time of various key nodes in the fault handling process can be visually displayed, the time consumption situation of each link in the fault handling process is counted, time consumption analysis is conveniently carried out by management personnel, and the fault handling efficiency is improved.
3. Through the calculation of the fault electric quantity, management personnel can analyze the operation condition of the power grid from a macroscopic view conveniently, the fault disposal efficiency is quantized, and the power utilization satisfaction degree is effectively improved.
4. Through fault study and judgment evaluation, faults are analyzed in multiple dimensions, and fault perception capability and accuracy of main station analysis are improved through evaluation results. Powerful support is provided for the operation scheduling of distribution network, improves the power supply reliability.
5. And controlling defects on line and closing a loop in time. And analyzing the action correctness of the terminal in time, and judging the strategy correctness of the main station in real time so as to conveniently and quickly send the defective terminal to a terminal defect elimination management and control platform of a maintenance department on line.
Practical application shows that the scheme can greatly improve the distribution network scheduling work efficiency and the success rate of finding and removing faults.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
fig. 1 is a schematic flow chart illustrating steps executed by a power distribution network fault studying and judging post analysis system according to an embodiment of the present invention.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
the power distribution network fault studying and judging post analysis system provided by the embodiment comprises: the fault analysis system comprises a fault brief report generation module, a fault treatment overall process time consumption statistics module, a fault electric quantity calculation module and a fault study and judgment evaluation module;
the fault brief report generation module is used for abstracting and summarizing the key points of fault handling to form brief reports; the key points comprise failure occurrence reasons, failure influence ranges and treatment results;
the data source of the fault brief report generation module is a fault brief report log in the scheduling fault record list;
the key points of the fault influence range are extracted as follows: recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by the power failure; the main points of the disposal result are refined as follows: and displaying the final condition of the fault handling, including the conditions of normal power transmission of the fault, no need of emergency repair, short-time fault and false alarm.
The fault handling overall process time consumption statistical module is used for recording and analyzing each node change in the handling process to obtain overall process time consumption information and recording specific operator information in the fault handling process;
wherein, the fault handling overall process time-consuming statistics module includes:
the fault handling node time analysis submodule processes the flow node time record and comprises: signal action, judging a popup window, issuing power failure, isolating power transfer, allowing emergency repair, ending emergency repair, completing power transmission and filing time;
the processing link time consumption statistics submodule comprises the following recorded contents: time-consuming node recording of fault sensing, fault analysis, isolated power transfer, emergency repair connection, fault emergency repair and power transmission operation;
and the scheduling personnel handling efficiency statistics submodule is used for counting fault handling conditions in a period of time from the perspective of scheduling personnel, and comprises information of the number of faults handled by each person, the number of fault classification handling, the number of orders issued by the fault handling, the number of fault remote control operations and the time-consuming conditions of each fault handling link.
The fault electric quantity calculation module is used for recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by power failure, and calculating the power failure loss electric quantity and the advanced power recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault;
the fault research and judgment evaluation module is used for evaluating faults from three levels of terminal action, power distribution master station research and judgment and remote control execution respectively by combining research and judgment data and fault release records, planned power failure data and operation data of a dispatcher in the DMS system;
wherein, in the fault study and judgment evaluation module:
the terminal action evaluation is used for evaluating three types of processes, namely short-circuit faults, ground loss faults and manual fault release;
evaluating the manual release fault by adopting a short-circuit fault evaluation rule;
for the flow of false alarm filing, directly evaluating all terminals corresponding to the sensing signals as false alarms; the power distribution master station research and evaluation comprises trip point correctness evaluation, fault interval correctness evaluation, power failure range correctness evaluation, isolation power conversion scheme correctness evaluation and out-of-place line selection conclusion evaluation; the remote control execution evaluation was: and counting the remote control execution result in the operation record generated in the fault handling process, and counting the number of switches which are successfully executed in the remote control mode and the number of switches which are failed in the remote control mode.
A defect closed-loop management module; the defect closed-loop management module initiates a defect control flow to the terminal or equipment which is judged and evaluated as a defect according to the evaluation result of the fault judging and evaluating module and in combination with the defect flow of the power distribution network so as to realize on-line closed-loop control of the defect;
the defect types comprise terminal misoperation, terminal refusal, missed report, remote control failure, equipment ledger error and terminal false report/missed report.
The flow of the steps executed by the power distribution network fault studying and judging post-analysis system provided by the embodiment is shown in fig. 1, and comprises the following steps:
s1, fault briefing function: and (4) refining and summarizing the main points of the fault disposal to form a brief report. The key points include failure occurrence reasons, failure influence ranges and treatment results.
S2, counting the consumed time of the whole fault handling process: and for each fault, recording and analyzing the change of each node in the handling process, and simultaneously recording the information of specific operators in the fault handling process.
S3, calculating fault electric quantity: and recording and displaying the power failure and recovery time, the power failure duration and the like of the distribution transformer aiming at each distribution transformer influenced by the power failure, and calculating the power failure loss electric quantity and the early power recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault.
S4, fault study, judgment and evaluation: and evaluating the fault from three levels of terminal action, power distribution master station study and judgment and remote control execution by combining study and judgment data, fault release records, planned power failure data and operation data of a dispatcher in the DMS system.
S5, defect closed-loop management: based on the application of the fault study and judgment post analysis method, a defect control flow is initiated for the terminal or equipment which is evaluated as defective by study and judgment in combination with the defect flow of the power distribution network, so that the defect on-line closed-loop control is realized.
In step S1, the fault bulletin function includes the following functions: the fault brief description content is from a fault brief description log in a dispatching fault record list; evaluating the power failure influence range, recording and displaying the power failure and restoration time, the power failure duration and the like of the distribution transformer aiming at each distribution transformer influenced by the power failure; and the processing result shows the final condition of the current fault processing, including the conditions of normal power transmission of the fault, emergency repair, short-time fault, false alarm and the like.
In step S2, the statistics of the consumed time of the whole process of fault handling includes the following three points: analyzing the time of the fault handling node, wherein the processing of the time record of the flow node comprises the following steps: signal action, judging a popup window, issuing power failure, isolating power transfer, allowing emergency repair, ending emergency repair, completing power transmission and filing time; the time consumption statistics of the disposal link is carried out, and the recording contents mainly comprise time consumption node records of fault sensing, fault analysis, isolated power conversion, first-aid repair connection, fault first-aid repair, power transmission operation and the like; the dispatching personnel handles efficiency statistics, can handle the trouble condition of a period of time with dispatching personnel's angle statistics, including everyone handles information such as trouble quantity, the categorised quantity of handling of trouble, the order quantity of handling of trouble, trouble teleoperation quantity to and handle the time-consuming situation of link in each trouble.
And step S3, calculating the fault electric quantity, recording and displaying the power failure and recovery time, the power failure duration and the like of the distribution transformer aiming at each distribution transformer influenced by the power failure, and calculating the power failure loss electric quantity and the advanced power recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault.
In step S4, the fault study and evaluation function: and (3) evaluating the faults from three levels of terminal action, power distribution master station research and judgment and remote control execution respectively by combining research and judgment data, fault release records, planned power failure data and operation data of a dispatcher in the DMS system. And the terminal action evaluation only evaluates three types of flows, namely a short-circuit fault, a ground loss fault and a manual fault release. Wherein the evaluation of the manual issuing fault adopts a short-circuit fault evaluation rule. For the false alarm filing process, directly evaluating all terminals corresponding to the sensing signals as false alarms; the power distribution main station research and evaluation comprises trip point correctness evaluation, fault section correctness evaluation, power failure range correctness evaluation, isolation power conversion scheme correctness evaluation and out-of-ground line selection conclusion evaluation. Remote control execution; and counting the remote control execution result in the operation record generated in the fault handling process, and counting the number of switches which are successfully executed in the remote control mode and the number of switches which are failed in the remote control mode.
In step S5, defect closed-loop management: based on the application of the fault study and judgment post analysis method, a defect control flow is initiated for the terminal or equipment which is evaluated as defective by study and judgment in combination with the defect flow of the power distribution network, so that the defect on-line closed-loop control is realized. The defect types comprise defects of terminal misoperation, refusal, missed report, remote control failure, equipment ledger error, terminal adoption misinformation/missed report and the like.
The invention aims to provide a method for analyzing faults of a power distribution network after research and judgment, which takes a power distribution automation main station as a basic data platform, comprehensively applies interfaces of abundant terminal data resources of the power distribution main station integrated in places and counties and external systems, evaluates and analyzes the contents of treatment timeliness, fault research and judgment conditions, terminal action information, remote control operation information and the like of each node in the whole research and judgment process on the basis of the application of the existing system, and initiates the process treatment on the analyzed and confirmed terminal defects.
The specific technical details of this implementation are further explained below:
(1) Brief description of the failure
The fault profile is taken from a fault profile log in a dispatch fault record sheet.
(2) Evaluation of power failure influence range
The power outage influence range is the power outage range of the final power outage release and power outage update, namely the range behind the trip point. And recording and displaying the power failure and recovery time, the power failure duration and the like of the distribution transformer aiming at each distribution transformer influenced by the power failure, and reducing the loss electric quantity, the power failure loss electric quantity, the average power failure duration and the like by converting power. The following table shows the specific evaluation rules for distribution change in the influence of power failure.
(3) And fault handling conditions comprise normal process filing, filing without emergency repair types, successful filing of strong power transmission, short-time lost-to-ground recovery filing, false alarm ending process and main network power transmission ending process.
(4) Fault handling node time analysis
Processing the flow node time record includes: the method comprises the following steps of signal action, judging a popup window, issuing power failure, isolating power transfer, allowing first-aid repair, ending first-aid repair, completing power transmission and filing time, wherein the signal action is the earliest action signal time received by a system, all other process node time is the completion time of the current node, and the completion time is the completion time below the note on an interface.
The following specific details are shown for different process operation nodes corresponding to different archive types:
a. false positive/short miss restore archive: signal action-judging popup window-filing time
b. Strong power transmission filing: signal action-judging popup window-power failure release-power transmission completion-filing time
c. User internal fault archiving: signal action-judging popup window-power failure release-power transmission completion-filing time (for the condition that no operation record exists for isolating power conversion, corresponding to power transmission failure completion)
d. Successful trial delivery: signal action-judging popup window-power failure release-isolation power transfer-power transmission completion-filing time
e. Low-voltage failure: signal action, judging popup window, power failure release, isolation power conversion, power transmission completion and filing time
f. Filing in a normal process: signal action, judging a popup window, issuing power failure, isolating power transfer, allowing emergency repair, ending emergency repair, completing power transmission and filing time.
(5) Disposal link time consumption statistics
Recording time-consuming node records, such as fault perception, fault analysis, isolation power conversion, emergency repair connection, fault emergency repair, power transmission operation and the like, wherein each time-consuming calculation rule is shown in the following table;
(6) Dispatch personnel treatment efficiency statistics
The fault handling condition within a period of time can be counted from the perspective of scheduling personnel, and the fault handling condition comprises information such as the number of faults handled by each person, the classified handling number of the faults, the order number of the fault handling, the remote control operation number of the faults, and the time consumption condition in each fault handling link.
(7) Terminal action evaluation
And the terminal evaluation only evaluates three types of flows, namely short-circuit faults, ground loss faults and manually releases the faults. Wherein the evaluation of the manual issuing fault adopts a short-circuit fault evaluation rule. And for the flow of false alarm filing, directly evaluating all terminals corresponding to the sensing signals as false alarms. The evaluation process of the terminal actions of the non-false alarm process is as follows:
(1) and acquiring a tripping device A issued in power failure and a manually set fault point B, and deleting existing evaluation result data of the fault.
(2) Querying the power supply path PathA of the tripping device a and the power supply path PathB of the fault point B, and the power supply range Area of the outgoing line switch.
(3) And acquiring all matters according to the power failure release time, the front tracing time and the rear tracing time. The transaction includes a transaction of which the disk is completely stored and a transaction in a cache file of which the disk is not stored.
(4) And traversing the events, and screening out an action event set X of the conventional protection and an unconventional protection action event set Y, so that the action event set Z and the trip event set U are designated. And if the fault is a ground loss fault, acquiring a grounding feature action item set W.
Short circuit operation signal evaluation
a for unconventional protection: action items of all the unconventional protection switches on the failure point power supply circuit power B are found at Y, the action items are judged to be correct actions, and otherwise, the action items are judged to be unconventional protection missing reports; and (3) removing all the action items found by the unconventional protection switches in the B in the power supply range area of the outgoing switch, judging as 'unconventional protection false alarm', and otherwise, judging as 'terminal normal'.
b for conventional protection: all the conventional protection switches between the fault point and the trip point find action items in X and trip items in U, the action is judged to be correct, if the downstream switch is evaluated to be refused (the fault is proved to have expanded power failure range), the evaluation of the actual trip switch is as follows: when a certain switch operates correctly (the power failure range is expanded), and a plurality of switches are subjected to override simultaneous tripping evaluation, the evaluation of the switch above the power supply path is as follows: the switch action is correct (the power failure range is enlarged); if the action item is found in X and the trip item is not found in U, judging as 'refusing action'; if the action item is not found in X and the trip item is found in U, the operation item is judged to be 'missed report', and if the action item is not found in X and the trip item is not found in U, the operation item is judged to be 'missed report'; in all the conventional protection switches which are not between the trip point and the fault point, the protection action item is found in X and is judged to be false alarm, the trip action item is found in U and is judged to be false action, the action item is not found in X and the trip action item is not found in U and is judged to be normal terminal.
C means for the event: all faults between the fault point and the trip point mean that action items are found in Z, and the action items are judged to be correct, otherwise, the action items are judged to be missed; all events which are not between the trip point and the fault point mean that action items are found in Z, and the fault is judged to be false alarm, otherwise, the fault is judged to be normal terminal.
Loss of ground motion signal evaluation
For ground alarm protection: action items are found in W by all the switches on the power supply circuit B at the fault point, and the action items are judged to be correct, otherwise, the action items are judged to be missed; and (3) finding action items in W for all the switches in the outgoing line B in the power supply range area of the outgoing line switch, judging the action items as 'false alarm', and otherwise, judging the action items as 'normal terminal'.
(8) Evaluation of ground-lost route selection conclusion
For the lost-to-ground route selection, accuracy evaluation is carried out on signals sent by various devices and various algorithm studying and judging conclusions, wherein short-time lost-to-ground faults do not participate in evaluation because the lost-to-ground route is not determined; filing the missing false alarm, and judging the signal sent by the line selection device as the false alarm; when there is a failure issued by a power failure, the issue line is evaluated as a line to ground.
(9) Evaluation of fault research and judgment conclusion
Trip point correctness: and if the trip point is not modified, the trip point is correct, and if the trip point is not modified, the trip point is modified to be wrong.
Accuracy of fault section: the fault point set manually is correct in the study and judgment interval, otherwise, the interval study and judgment is wrong.
Accuracy of power failure range: the power failure issuing range is correct if the power failure issuing range is consistent with the studying and judging range.
The correctness of the isolated power conversion scheme: and evaluating the rapid isolation power conversion scheme on the premise of correct study and judgment of the fault section, wherein the rapid isolation power conversion scheme is completely executed according to the sequence and is evaluated to be correct, the execution record is overlapped with the scheme but is not completely executed and is evaluated to be modified, and the execution record is not executed or is not overlapped with the scheme completely and is evaluated to be wrong.
(10) Remote control execution situation
And counting the remote control execution result in the operation record generated in the fault handling process, and counting the number of switches which are successfully executed in the remote control mode and the number of switches which are failed in the remote control mode.
(11) Defect flow initiation
And supporting the defect initiating process for the terminal with incorrect action, and entering the defect management and control process by the terminal after the defect initiating process is initiated.
The above method provided by this embodiment can be stored in a computer readable storage medium in a coded form, and implemented in a computer program, and inputs basic parameter information required for calculation through computer hardware, and outputs the calculation result.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
The present invention is not limited to the above-mentioned preferred embodiments, and any other various types of power distribution network fault post-determination analysis systems and methods can be obtained according to the teaching of the present invention.
Claims (9)
1. The utility model provides a distribution network fault is studied and judged post-event analytic system which characterized in that includes: the fault analysis system comprises a fault brief report generation module, a fault treatment overall process time consumption statistics module, a fault electric quantity calculation module and a fault study and evaluation module;
the fault brief generating module is used for abstracting and summarizing the key points of fault disposal to form brief; the key points comprise failure occurrence reasons, failure influence ranges and treatment results;
the fault handling overall process time consumption counting module is used for recording and analyzing each node change in the handling process to obtain overall process time consumption information and recording specific operator information in the fault handling process for each fault;
the fault electric quantity calculation module is used for recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by power failure, and calculating the power failure and loss electric quantity and the early power recovery electric quantity of the current fault by combining the running power of the distribution transformer before the fault;
the fault study and judgment evaluation module is used for evaluating the correctness of fault study and judgment from three levels of terminal action, power distribution main station study and judgment and remote control execution by combining study and judgment data in the DMS system, fault release records, planned power failure data and operation data of a dispatcher.
2. The power distribution network fault studying and judging post-hoc analysis system according to claim 1, wherein: the system also comprises a defect closed-loop management module; the defect closed-loop management module initiates a defect control flow to a terminal or equipment which is judged and evaluated as a defect according to the evaluation result of the fault judging and evaluating module and in combination with the defect flow of the power distribution network so as to realize on-line closed-loop control of the defect;
the types of defects include: terminal malfunction, terminal refusal, terminal report omission, remote control failure, equipment ledger error, and terminal false report/report omission.
3. The power distribution network fault studying and judging post-hoc analysis system according to claim 1, wherein: the data source of the fault brief report generation module is a fault brief report log in a scheduling fault record sheet;
the main points of the fault influence range are refined as follows: recording and displaying the power failure and recovery time and the power failure duration of the distribution transformer aiming at each distribution transformer influenced by the power failure; the main points of the disposal result are refined as follows: and displaying the final condition of the fault handling, including the conditions of normal power transmission of the fault, no need of emergency repair, short-time fault and false alarm.
4. The power distribution network fault studying and judging post-hoc analysis system according to claim 1, wherein: the total fault handling process time consumption statistic module comprises:
the fault handling node time analysis submodule processes the flow node time record and comprises: signal action, judging a popup window, issuing power failure, isolating power transfer, allowing emergency repair, ending emergency repair, completing power transmission and filing time;
the processing link time consumption statistics submodule comprises the following recorded contents: time-consuming node recording of fault sensing, fault analysis, isolated power transfer, emergency repair connection, fault emergency repair and power transmission operation;
and the scheduling personnel handling efficiency statistics submodule is used for counting fault handling conditions in a period of time from the perspective of scheduling personnel, and comprises information of the number of faults handled by each person, the number of fault classification handling, the number of orders issued by the fault handling, the number of fault remote control operations and the time-consuming conditions of each fault handling link.
5. The power distribution network fault studying and judging post-hoc analysis system according to claim 1, wherein: in the fault studying and judging module:
the terminal action evaluation is used for evaluating three types of processes, namely short-circuit faults, ground loss faults and manual fault release;
the evaluation of the manual release fault adopts a short-circuit fault evaluation rule;
for the false alarm filing process, directly evaluating all terminals corresponding to the sensing signals as false alarms; the power distribution master station research and evaluation comprises trip point correctness evaluation, fault interval correctness evaluation, power failure range correctness evaluation, isolation power conversion scheme correctness evaluation and out-of-place line selection conclusion evaluation; the remote control execution evaluation was: and counting the remote control execution result in the operation record generated in the fault handling process, and counting the number of switches which are successfully executed in the remote control and the number of switches which are failed in the remote control.
6. The power distribution network fault judgment post-analysis system as claimed in claim 1, wherein the analysis method comprises the following steps:
step S1: extracting and summarizing the main points of the fault disposal to form a fault brief report; the key points comprise failure occurrence reasons, failure influence ranges and treatment results;
step S2: counting the consumed time of the whole fault handling process, recording and analyzing the change of each node in the handling process, and simultaneously recording the information of specific operators in the fault handling process;
and step S3: calculating fault electric quantity, recording and displaying the power failure and restoration time of the distribution transformer and the power failure duration aiming at each distribution transformer influenced by power failure, and calculating the power failure and loss electric quantity and the advanced restoration electric quantity of the current fault by combining the running power of the distribution transformer before the fault;
and step S4: and (4) carrying out fault study and judgment evaluation, and evaluating the fault from three levels of terminal action, power distribution main station study and judgment and remote control execution respectively by combining study and judgment data in a DMS system, fault release records, planned power failure data and operation data of a dispatcher.
7. The power distribution network fault judgment post-analysis system according to claim 6, wherein the method for analyzing further comprises the step S5: defect closed-loop management: and based on the steps S1 to S4, a defect control flow is initiated for the terminal or equipment which is researched, judged and evaluated to be defective in combination with the defect flow of the power distribution network, so that the defect online closed-loop control is realized.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method according to claim 6 or 7 when executing the program.
9. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to claim 6 or 7.
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