CN116626437A - Method for determining fault types of power distribution terminal - Google Patents
Method for determining fault types of power distribution terminal Download PDFInfo
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- CN116626437A CN116626437A CN202310428112.6A CN202310428112A CN116626437A CN 116626437 A CN116626437 A CN 116626437A CN 202310428112 A CN202310428112 A CN 202310428112A CN 116626437 A CN116626437 A CN 116626437A
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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Abstract
The application discloses a method for determining fault types of a power distribution terminal, belongs to the technical field of power engineering, and aims to solve the problem that circuit faults occur in the real-time operation process of the power distribution network of the power distribution terminal in the prior art, the existing analysis and maintenance of faults occurring in the power distribution network are not processed in a targeted manner, the calculation time of maintenance personnel is long, and a large amount of searching and detecting time is needed to classify and maintain the fault types. S1, a fault detection system is established between a power distribution terminal and a power grid operation main station, power grid operation main station operation information is transmitted towards the fault detection system in real time, and meanwhile, the fault detection system carries out circuit detection on the power distribution terminal, so that timeliness of the power distribution terminal for monitoring the power grid operation main station is ensured; s2, when the fault is detected, determining a fault reason in time according to the fault content; and S3, making a discharge scheme according to the connection content of the power distribution terminal and the power grid operation, and establishing network faults when the network information cannot be connected.
Description
Technical Field
The application belongs to the technical field of power engineering, and particularly relates to a method for determining fault types of a power distribution terminal.
Background
The distribution terminal is short for distribution switch monitoring terminal. The distribution switch monitoring terminal (FTU for short) has the functions of remote control, remote measurement, remote signaling and fault detection, and is communicated with the distribution automation master station to provide information required by the operation condition of a distribution system and various parameters, namely monitoring control. The method comprises the steps of switching states, electric energy parameters, interphase faults, grounding faults and parameters during faults, executing commands issued by a distribution main station, adjusting and controlling distribution equipment, achieving functions of fault positioning, fault isolation, rapid recovery of power supply in non-fault areas and the like, installing various remote monitoring and control units of a distribution network, completing functions of data acquisition, control, communication and the like, mainly comprising feeder terminals, station terminals, distribution transformer terminals and the like, wherein the distribution terminals are called distribution terminals for short, circuit faults are inevitably generated in the real-time operation process of the distribution network, the analysis and maintenance of faults occurring in the distribution network are not conducted in a targeted processing mode at present, the calculation time of maintenance personnel is long, and a large amount of searching and detecting time is needed to classify fault types for maintenance.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the application aims to provide a method for determining the fault type of a power distribution terminal, which aims to solve the problems that in the prior art, circuit faults are unavoidable in the real-time operation process of the power distribution terminal, and the existing analysis and maintenance of faults occurring in the power distribution network are not processed in a targeted manner, so that the calculation time of maintenance personnel is relatively long, and a large amount of searching and detecting time is needed to classify the fault type for maintenance.
(2) Technical proposal
In order to solve the technical problems, the application provides a method for determining the fault type of a power distribution terminal, which comprises the following steps,
s1, a fault detection system is established between a power distribution terminal and a power grid operation main station, power grid operation main station operation information is transmitted towards the fault detection system in real time, and meanwhile, the fault detection system carries out circuit detection on the power distribution terminal, so that timeliness of the power distribution terminal for monitoring the power grid operation main station is ensured;
s2, when the fault is detected, determining a fault reason in time according to the fault content;
s3, a discharge scheme is made according to the connection content of the power distribution terminal and the power grid operation, network faults are established when network information cannot be connected, wireless module faults are established when physical connection fails, and parameter communication faults are established when operation parameters cannot be synchronized or delay synchronization occurs;
s4, if the power grid operation master station is determined to receive the link state message replied by the power distribution terminal, and the number of times of sending the request for resetting the link message by the power grid operation master station reaches a second preset number of times threshold value within a first preset time, determining that the target fault type is a signal fault;
s5, carrying out targeted maintenance after establishing fault types, and synchronously uploading fault maintenance records to a database;
s6, recording the running state of the circuit in each fault in real time, and taking the running state as a reference basis for the subsequent same fault to be used as a solution reference.
When the running state of the circuit is similar to the fault experience in the database, early warning analysis is carried out, an early warning report is sent out, risk evaluation is carried out on the early warning behavior, and if the analyzed development state of the circuit is continuously close to the fault state, the risk evaluation level is continuously increased.
The risk evaluation grades are at least two stages, and comprise a first grade and a second grade, wherein the first grade is light risk similar, the detection time is 1 min/time, and when the circuit risk state deviates from the fault state, the risk evaluation is cancelled.
The second level is the same as the critical risk, the detection time is 30 s/time, the fault detection system under the second level can upload the circuit fault report evaluation content to the display port for the staff to check in time, and provide the troubleshooting solution reference for the staff according to the past troubleshooting solution, the staff appoints the fault solution according to the solution reference, and defines the fault as the specified category. The fault detection system comprises a detection module, an execution module and an early warning analysis module. The detection module is used for detecting the content of all information transmission signals between the power distribution terminal and the power grid operation main station, and is used as a main sounding module for judging whether faults occur or not if deviation of the information transmission content is found.
The execution module is used as a control unit for controlling the modules in the system, and is used for transmitting information among the modules and controlling the modules to give corresponding instructions, for example, when the information is called by the database, the early warning analysis module is used for obtaining the calling authority of the database and extracting the past fault content. The database is used for storing the content of each fault and the fault elimination scheme, recording the fault elimination scheme when the fault is eliminated, manually filling and uploading the fault by staff, and synchronously recording the fault reason, time and fault type when the fault is generated. And the early warning analysis module is used as a first early warning procedure between the power distribution terminal and the power grid operation master station before the detection module detects faults, and early warning judgment is carried out on the faults when the circuit is detected to run towards the previous fault state.
(3) Advantageous effects
Compared with the prior art, the application has the beneficial effects that:
when the circuit operation finds abnormality, the application can quickly find the deviation, and when the existing fault experiences are similar, early warning analysis is carried out, the fault occurrence circuit is monitored in real time, if the circuit risk state deviates from the fault state, risk evaluation is cancelled, if the circuit risk state is continuously close to the fault state, the circuit fault reporting evaluation content is uploaded to the display port for a worker to check in time, the fault can be identified in advance before occurrence, thereby effectively stopping damage, reducing economic damage caused by unknown occurrence of the fault, judging the fault type in time through various fault elimination functions of the circuit operation, improving the follow-up maintenance efficiency, having more pertinence and meeting the fault maintenance requirement of a power distribution terminal.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a method for determining the type of fault in a power distribution terminal according to the present application;
FIG. 2 is a schematic diagram of an early warning level evaluation flow;
FIG. 3 is a schematic diagram of a database and early warning operation flow;
fig. 4 is a schematic diagram of a distribution terminal early warning analysis structure.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The specific embodiment is a method for determining the fault type of a power distribution terminal, the structure diagram of which is shown in fig. 1, comprising the following steps,
s1, a fault detection system is established between a power distribution terminal and a power grid operation main station, power grid operation main station operation information is transmitted towards the fault detection system in real time, and meanwhile, the fault detection system carries out circuit detection on the power distribution terminal, so that timeliness of the power distribution terminal for monitoring the power grid operation main station is ensured;
s2, when the fault is detected, determining a fault reason in time according to the fault content;
s3, a discharge scheme is made according to the connection content of the power distribution terminal and the power grid operation, network faults are established when network information cannot be connected, wireless module faults are established when physical connection fails, and parameter communication faults are established when operation parameters cannot be synchronized or delay synchronization occurs;
s4, if the power grid operation master station is determined to receive the link state message replied by the power distribution terminal, and the number of times of sending the request for resetting the link message by the power grid operation master station reaches a second preset number of times threshold value within a first preset time, determining that the target fault type is a signal fault;
s5, carrying out targeted maintenance after establishing fault types, and synchronously uploading fault maintenance records to a database;
s6, recording the running state of the circuit in each fault in real time, and taking the running state as a reference basis for the subsequent same fault to be used as a solution reference.
When the running state of the circuit is similar to the fault experience in the database, early warning analysis is carried out, an early warning report is sent out, risk evaluation is carried out on the early warning behavior, and if the analyzed development state of the circuit is continuously close to the fault state, the risk evaluation level is continuously increased.
The risk evaluation grades are at least two stages, and comprise a first grade and a second grade, wherein the first grade is light risk similar, the detection time is 1 min/time, and when the circuit risk state deviates from the fault state, the risk evaluation is cancelled. The second level is the same as the critical risk, the detection time is 30 s/time, the fault detection system under the second level can upload the circuit fault report evaluation content to the display port for the staff to check in time, and provide the troubleshooting solution reference for the staff according to the past troubleshooting solution, the staff appoints the fault solution according to the solution reference, and defines the fault as the specified category. The economic damage caused by unknown occurrence of faults is reduced, the types of the faults can be judged timely through the multiple fault removal functions of the circuit operation, the follow-up overhaul efficiency is improved, the pertinence is better, and the fault maintenance requirements of the power distribution terminal are met.
The fault detection system comprises a detection module, an execution module and an early warning analysis module. The detection module is used for detecting the content of all information transmission signals between the power distribution terminal and the power grid operation main station, and is used as a main sounding module for judging whether faults occur or not if deviation of the information transmission content is found. The execution module is used as a control unit for controlling the modules in the system, and is used for transmitting information among the modules and controlling the modules to give corresponding instructions, for example, when the information is called by the database, the early warning analysis module is used for obtaining the calling authority of the database and extracting the past fault content. The database is used for storing the content of each fault and the fault elimination scheme, recording the fault elimination scheme when the fault is eliminated, manually filling and uploading the fault by staff, and synchronously recording the fault reason, time and fault type when the fault is generated. And the early warning analysis module is used as a first early warning procedure between the power distribution terminal and the power grid operation master station before the detection module detects faults, and early warning judgment is carried out on the faults when the circuit is detected to run towards the previous fault state. When the circuit operation finds abnormality, the deviation can be found rapidly, and when the existing faults are similar in experience, early warning analysis is carried out, the fault occurrence circuit is monitored in real time, risk evaluation is cancelled if the circuit risk state deviates from the fault state, and if the circuit risk state is continuously close to the fault state, the circuit fault reporting evaluation content is uploaded to a display port for timely checking by staff, and the fault can be identified in advance before the fault occurs, so that damage is effectively prevented.
The configuration division module is deployed by using the power distribution terminal, and the configuration conditions of the power distribution terminal are divided into the following three types: 1. all three remote power distribution terminals are configured; 2. two remote power distribution terminals are configured completely; 3. the method comprises the steps of mixing and configuring a three-remote power distribution terminal and a two-remote power distribution terminal, and dividing the fault processing into three stages after the fault occurs by utilizing a fault condition dividing module, wherein the stages comprise a fault positioning stage 1; 2. a manual fault isolation stage; 3. in the fault repairing stage, under the condition of the three types of distribution terminal configuration, a detection module is utilized to collect data required by quantitative modeling calculation of system power failure time and power failure load in three fault processing stages of two types of feeder lines, wherein the required data comprises the number and the positions of sectionalized switches on the feeder lines, the number and the positions of interconnection switches on the feeder lines, the fault rate, the sectionalized lengths of the feeder lines, the sum of equivalent loads connected with sectionalized areas, the fault positioning time, the manual fault isolation time and the fault repairing time
All technical features in the embodiment can be freely combined according to actual needs.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.
Claims (9)
1. A method for determining the fault type of a power distribution terminal is characterized by comprising the following steps,
s1, a fault detection system is established between a power distribution terminal and a power grid operation main station, power grid operation main station operation information is transmitted towards the fault detection system in real time, and meanwhile, the fault detection system carries out circuit detection on the power distribution terminal, so that timeliness of the power distribution terminal for monitoring the power grid operation main station is ensured;
s2, when the fault is detected, determining a fault reason in time according to the fault content;
s3, a discharge scheme is made according to the connection content of the power distribution terminal and the power grid operation, network faults are established when network information cannot be connected, wireless module faults are established when physical connection fails, and parameter communication faults are established when operation parameters cannot be synchronized or delay synchronization occurs;
s4, if the power grid operation master station is determined to receive the link state message replied by the power distribution terminal, and the number of times of sending the request for resetting the link message by the power grid operation master station reaches a second preset number of times threshold value within a first preset time, determining that the target fault type is a signal fault;
s5, carrying out targeted maintenance after establishing fault types, and synchronously uploading fault maintenance records to a database;
s6, recording the running state of the circuit in each fault in real time, and taking the running state as a reference basis for the subsequent same fault to be used as a solution reference.
2. The method for determining the fault type of the power distribution terminal according to claim 1, wherein when the running state of the circuit is similar to the fault experience existing in the database, early warning analysis is performed, an early warning report is sent out, risk evaluation is performed for the early warning behavior, and if the development state of the circuit under analysis is continuously approaching to the fault state, the risk evaluation level is continuously increased.
3. The method for determining the fault type of the power distribution terminal according to claim 2, wherein the risk evaluation grades are at least two grades, including a first grade and a second grade, the first grade is light risk similar, the detection time is 1 min/time, and the risk evaluation is cancelled when the circuit risk state deviates from the fault state.
4. A method for determining the type of fault in a power distribution terminal according to claim 3, wherein the second level is the same type of critical risk, the detection time is 30 s/time, the fault detection system under the second level will upload the evaluation content of the circuit fault report to the display port for the staff to check in time, and provide the staff with the troubleshooting solution reference according to the past troubleshooting solution, the staff designates the fault solution according to the solution reference, and defines the fault as the specified type.
5. The method for determining the fault type of the power distribution terminal according to claim 1, wherein the fault detection system comprises a detection module, an execution module and an early warning analysis module.
6. The method according to claim 5, wherein the detecting module is configured to detect all information transfer signal contents between the power distribution terminal and the power grid operation master station, and if deviation of the information transfer contents is found, the detecting module is used as a main sounding module for determining whether a fault occurs.
7. The method for determining fault types of power distribution terminals according to claim 5, wherein the execution module is used as a control unit for controlling the modules in the system, and is configured to transmit information between the modules to each other and control the modules to give corresponding instructions, for example, when the database is used for information retrieval, the early warning analysis module is used for acquiring the database retrieval authority and extracting the past fault content.
8. The method according to claim 5, wherein the database is used for storing the content of each fault and the fault clearing scheme, the fault clearing scheme is recorded when the fault is cleared, the fault clearing scheme is manually filled in by a worker and uploaded, and when the fault is generated, the fault reason, the time and the fault type are synchronously recorded.
9. The method according to claim 5, wherein the early warning analysis module performs early warning and judgment on the fault when the circuit is detected to run toward the previous fault state as a first early warning process between the power distribution terminal and the power grid running master station before the fault is detected by the detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310428112.6A CN116626437A (en) | 2023-04-20 | 2023-04-20 | Method for determining fault types of power distribution terminal |
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| CN202310428112.6A CN116626437A (en) | 2023-04-20 | 2023-04-20 | Method for determining fault types of power distribution terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116937578A (en) * | 2023-09-18 | 2023-10-24 | 广东电网有限责任公司江门供电局 | Power grid monitoring system data processing method, device, terminal and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116937578A (en) * | 2023-09-18 | 2023-10-24 | 广东电网有限责任公司江门供电局 | Power grid monitoring system data processing method, device, terminal and storage medium |
| CN116937578B (en) * | 2023-09-18 | 2024-01-23 | 广东电网有限责任公司江门供电局 | Power grid monitoring system data processing method, device, terminal and storage medium |
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