CN107147215A - Distribution network fault location system and method combined with line overload data analysis - Google Patents

Abstract

The invention discloses a kind of Distribution Fault Location System of combined circuit overload data analysis and method, present invention fusion circuit information on load, make the positioning of failure more accurate, with circuit overload data analysing method, early warning analysis is carried out to distribution transforming overload phenomenon, according to circuit, switch and transformer equipment, with reference to power network real time operation mode, survey is called together by power information acquisition system when necessary, improve efficiency and data transmission security that power supply unit abnormal data is collected, can perception level with advanced sensing technology lifting means state, and pass through intelligent assembly automatic analysis equipment state, grasp the running situation that all or part of important areas adjust interior distribution line.

Description

Distribution network fault location system and method combined with line overload data analysis

technical field

The invention relates to a distribution network fault location system and method combined with line overload data analysis.

Background technique

With the development of the economy, the rapid growth of power demand, and the continuous expansion of the grid scale, the society has higher and higher requirements for the power supply reliability, power quality, and service level of the grid. The speed of emergency repair of distribution network faults has become an important link affecting the reliability of power supply.

The 10kV fault discovered by distribution automation has caused a wide range of power outages and has a great social impact. How to quickly grasp the range of fault impact and users, and promptly and proactively notify users of power outage information and emergency repair status can greatly reduce the number of repair requests by users and improve customer service. Level. Most of the fault information reported by users is only the user's address information, which cannot meet the requirements of on-site repair personnel to quickly and accurately determine the faulty equipment and location. Faults discovered by the power consumption information collection system and faults recorded by on-site line patrol personnel, how to quickly locate the fault location have also become the reasons that affect the progress of emergency repairs. Therefore, in order to improve the speed of fault repair, accurate judgment and analysis of faults has become an urgent need for distribution network repair work.

At the same time, as the scale of the power grid continues to expand, the overload of the line will cause great danger to the safe operation of the entire power grid. Therefore, for the distribution network, mastering the operation status of all or part of the important distribution transformers in the district can also help the manager to grasp the overall status of the district distribution network, and can timely and accurately understand the current operation of the line and grasp the line loss. A series of important operating parameters such as line overload, load rate, etc., are of great significance to the overload evaluation, analysis, and research of distribution network lines.

Real-time monitoring and real-time collection of operating data parameters for tens of thousands of lines in different geographical locations, real-time collection of line operating data through the power consumption information collection system, and selection of massive data that affects distribution transformer overload. , Mining and analysis of customer data, carrying out the scene application of urban network distribution transformer overload early warning analysis, and it is quite difficult, because it is obviously unrealistic to use conventional communication to solve the line operation overload early warning and data communication of the monitoring center. The most important technical problem is solved by using the existing distribution network to collect and analyze the data of the line. Analyze and judge the overload abnormality of distribution lines, improve the efficiency of data collection for overload abnormalities of distribution lines and the safety of data transmission.

Contents of the invention

In order to solve the above problems, the present invention proposes a distribution network fault location system and method combined with line overload data analysis. The equipment, combined with the real-time operation mode of the power grid, can improve the efficiency of abnormal data collection and data transmission security of power supply equipment through the call-up test of the power consumption information collection system when necessary, and grasp the operation status of all or some important distribution lines in the district.

In order to achieve the above object, the present invention adopts the following technical solutions:

A distribution network fault location system combined with line overload data analysis of the present invention includes a line overload data analysis server and a distribution network fault location server, the distribution network fault location server and a distribution automation system, 95598 system, and on-site The line patrol monitoring device is connected to the power consumption information collection system, the distribution automation system is used to push the distribution network fault information to the distribution network fault location server; the 95598 system is used to push the user repair information to the distribution network fault positioning server; the on-site line inspection monitoring device is used to transmit the fault information detected by the on-site line inspection to the distribution network fault location server; the power consumption information collection system is used to send the collected power outage information to the distribution network fault A positioning server; a set of positioning fault solutions is also stored in the distribution network fault positioning server;

The line overload data analysis server is connected to the distribution network fault location server, reads the relevant power consumption information, calculates and screens the data according to the current and voltage data of the power supply line, screens out overloaded and heavy-loaded lines, and transmits Provide distribution network fault location server;

The distribution network fault location server is used for:

Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; A matching fault location solution in the fault location solution set is bound;

Receive the information transmitted by the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and correlate with the corresponding ID numbers for classification and storage, and combine the overload information determined by the line overload data analysis server with the ID number The bound fault location scheme performs fault location on information with the same ID number and overloaded lines respectively and outputs the location results.

The distribution network fault location system combined with line overload data analysis of the present invention integrates the fault collection systems of distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and receives accurate, Reliable, comprehensive and timely state information, and then use the corresponding positioning fault scheme stored in the distribution network fault location server to carry out classified fault judgment, which can accurately locate distribution network faults, and provide emergency repairs for distribution networks, distribution network construction, and grid structures. The decision-making of the transformation provides a reference; at the same time, based on the analysis data of the distribution network line overload data and the operation and distribution data, combined with the actual situation, relevant measures such as replacement of power distribution and replacement of lines can be formulated to deal with future line overload situations.

Further, the system also includes a GIS system, the GIS system is connected to the distribution network fault location server; the GIS system is used to receive the location results output by the distribution network fault location server and display them on the GIS map.

The present invention also integrates the GIS system into the distribution network fault location system combined with line overload data analysis, and finally sends the location results output by the distribution network fault location server to the GIS system and visually displays them on the GIS map in a visual manner.

The second object of the present invention is to provide a positioning method for a distribution network fault location system combined with line overload data analysis.

The location method of the distribution network fault location system combined with line overload data analysis includes:

Step 1: Distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system respectively push distribution network fault information, user repair information, on-site line inspection detection fault information and collected power outage information to power distribution Network fault location server;

Step 2: The distribution network fault location server receives and processes the information transmitted from the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system. The specific processing process is as follows:

Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; A matching fault location solution in the fault location solution set is bound;

The receiving line overload data analysis server reads the relevant power consumption information, calculates and screens the data according to the current and voltage data of the power supply line, screens out overloaded and heavy-duty lines, and transmits them to the distribution network fault location server;

The information transmitted by the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system is associated with the corresponding ID number for classification and storage;

The fault location is performed on the information with the same ID number and the overloaded and overloaded lines confirmed by the line overload data analysis server by using the location fault solution bound to the ID number, and outputs the location results.

The positioning method of the distribution network fault location system combined with the line overload data analysis of the present invention receives the fault information uploaded by the fault collection systems of the distribution automation system, the 95598 system, the on-site line inspection monitoring device and the power consumption information collection system, so that It can receive accurate, reliable, comprehensive, and timely status information covering the distribution network within the jurisdiction, and then use the corresponding positioning fault solution stored in the distribution network fault location server to perform classified fault judgments, and can accurately locate distribution network faults. It provides a reference for decision-making on network emergency repair, distribution network construction, and network frame transformation.

Further, in the distribution network fault location server, the fault location scheme matching the ID number assigned to the distribution automation system is:

Step 1.1: Judging whether the received distribution network fault information sent by the distribution automation system is a temporary fault or a permanent fault; if it is a temporary fault, the fault location ends; otherwise, go to step 1.2;

Step 1.2: According to the topological relationship of the faulty equipment line, analyze the information of the 10kV power outage equipment affected by the fault, and import it into the power outage impact table of the distribution automation system; further analyze the metering box of the power outage according to the topological relationship of the equipment, and according to the user information maintained by the marketing system, put The user information affected by the power outage is imported into the user table affected by the power outage;

Step 1.3: According to the 10kV outage equipment analyzed in step 1.2, analyze the distribution transformer that affects the power outage according to the topological connection of the power grid. If there is no power outage, the fault location is completed; if there is a power outage transformer, continue to step 1.4;

Step 1.4: According to the network topology connection, continue to analyze down to the user meter box, import the analyzed outage equipment into the outage impact table, and enter step 1.5;

Step 1.5: Associate the outage meter box analyzed in step 1.4 according to the equipment information in the user's repair information. If it is associated, a record affecting the 95598 work order will be generated; if it is not associated, no record will be generated, and the fault location is completed.

The effect is: this method can accurately locate the faulty equipment and the power outage area and users caused by the fault, facilitate on-site repair personnel to understand the fault details and formulate fault solutions, select appropriate repair equipment and materials, and reduce faults caused by faults. Time wasted due to ignorance of the details leading to incorrect solution formulation or incorrect carrying of emergency repair equipment. Actively send power outage information notifications to the analyzed power outage users and inform them of fault handling, reducing the number of user fault repairs and improving user satisfaction.

Further, in the distribution network fault location server, the fault location scheme that matches the system ID number assigned to 95598 is:

Step 2.1: According to the account number in the user's repair information, query the marketing data and judge the user's electricity bill information. If there is arrears, draw a fault conclusion that the user is in arrears, and the fault judgment is over; if there is no arrears information, go to step 2.2;

Step 2.2: Call and measure the information of the user’s electric energy meter. If the measured data has voltage and no current, it can be concluded that the user’s electric meter is abnormal. If there is voltage and current, it can be concluded that the user’s electric energy meter is normal; if there is no voltage and current, go to step 2.3;

Step 2.3: Call and measure the information of the user's distribution transformer, if there is voltage and current, draw the conclusion of abnormality of the household meter, and draw the conclusion of abnormality of the low-voltage line if the voltage and current lack of phase; if there is no voltage and current, go to step 2.4;

Step 2.4: Compare the line power outage information accessed through the distribution network fault location system to whether the line where the user equipment is located is associated with the known line power outage data. If the connection is not found, draw the conclusion that the upstream transformer of the line where the user is located is abnormal; If it is associated, the specific power outage information that affects the user's power outage can be obtained: planned, temporary, and failure and end.

Its effect is: the administrative address in the user repair information is converted into the power equipment information in the power distribution grid, and through the query of marketing management information, it is judged whether the user's power outage is in arrears, and the arrears are directly fed back to the user to avoid blindness Waste of emergency repair resources caused by labor dispatch. If it is not arrears, analyze the cause of the fault and locate the fault point, so that the on-site repair personnel can understand the details of the fault, formulate a suitable repair plan, quickly complete the fault processing, reduce power outages, and improve user satisfaction.

Further, in the distribution network fault location server, the fault location scheme that matches the ID number assigned to the on-site line inspection monitoring device is:

Step 3.1: Preliminarily locate the fault range based on the received fault information sent by the on-site line inspection monitoring device, such as locating to the low-voltage metering box, transfer to the fault judgment process of the user's repair report and output the judgment conclusion; if the fault point is located on the medium-voltage line, Transfer to medium-voltage fault location judgment and output the judgment conclusion; if the fault point is located on the low-voltage line, enter step 3.2;

Step 3.2: According to the low-voltage line attribute of the fault location, measure the real-time voltage and current of the transformer on the line. If there are three-phase voltage and current, it is judged that the low-voltage line is abnormal; if there is a phase loss, it is judged that the low-voltage line is abnormal; Step 3.3;

Step 3.3: Correlate with the power outage line through the known power outage information that has been connected in the system. If the connection fails, it is judged that the transformer is abnormal; if it is connected, it is judged as a planned or temporary or fault power outage, and the end

The effect is: accurately locate the faulty equipment, facilitate the formulation of emergency repair plan and the dispatch of emergency repair personnel and materials. Further through historical data analysis, the lines or equipment with three or more power outages are derived to provide a basis for distribution network transformation.

Further, in the distribution network fault location server, the fault location scheme that matches the ID number assigned to the power consumption information collection system is:

Step 4.1: Associate each collection terminal device in the uploaded electrical information collection system with the power-off device, and query the type of device from the device library. If it is a user electric energy meter device, the fault location is completed; if it is a distribution transformer device, go to step 4.2 ;

Step 4.2: Call and measure the real-time voltage and current data of the transformer. If there is current and voltage, it is judged as an invalid fault if the three phases are complete; if there is no voltage and current, go to step 4.3;

Step 4.3: Step 4.2 judges the transformer with no current and voltage, and derives the line according to the line topology connection, and correlates with the line through the known power outage information that has been connected in the fault location system of the distribution network. The transformer is abnormal; if it is connected, it is judged to be a planned or temporary or faulty power outage, and it ends.

The effect is: accurately locate the faulty equipment, facilitate the formulation of emergency repair plan and the dispatch of emergency repair personnel and materials. Further through historical data analysis, the lines or equipment with three or more power outages are derived to provide a basis for distribution network transformation.

Further, the method further includes: the distribution network fault location server sends the output location result to the GIS system, and displays it on the GIS map.

The invention sends the positioning result output by the distribution network fault positioning server to the GIS system and visually displays it on the GIS map.

The third object of the present invention is to provide another distribution network fault location method combined with line overload data analysis.

The distribution network fault location method combined with line overload data analysis is completed in a distribution network fault location server, and a set of location fault solutions is stored in the distribution network fault location server; the method specifically includes:

Step (1): Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; The ID number is bound to a matching fault location solution in the set of fault location solutions;

Step (2): Receive the information transmitted from the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and correlate with corresponding ID numbers for classified storage;

Step (3): Use the fault location scheme bound to the ID number to perform fault location on the information with the same ID number and output the location results.

The present invention can receive accurate, reliable, comprehensive and timely information covering the distribution network within the jurisdiction by receiving the fault information uploaded by the fault collection systems of the distribution automation system, the 95598 system, the on-site line inspection monitoring device and the power consumption information collection system. Status information, and then use the corresponding positioning fault scheme stored in the distribution network fault location server to carry out classified fault judgment, which can accurately locate distribution network faults, and provide reference for decision-making of distribution network emergency repair, distribution network construction, and grid transformation.

The line load confirmation method can be selected as follows: collect all data such as current and voltage of the power supply line, perform data calculation and screening, screen out overloaded and heavy-duty lines, monitor overloaded lines, and combine fault information with heavy-duty lines for judgment and analysis.

Compared with prior art, the beneficial effect of the present invention is:

(1) The present invention integrates the failure collection systems of distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system to receive accurate, reliable, comprehensive and timely status information covering the distribution network within the jurisdiction, and Then use the corresponding positioning fault scheme stored in the distribution network fault location server to carry out classified fault judgment, which can accurately locate distribution network faults, and provide reference for decision-making of distribution network emergency repair, distribution network construction, and grid transformation.

(2) The present invention also integrates the GIS system into the distribution network fault location system combined with line overload data analysis, and finally sends the location results output by the distribution network fault location server to the GIS system and visually visualizes them on the GIS map show.

(3) The present invention integrates line load information to make fault location more accurate, uses the line overload data analysis method to carry out early warning analysis on the distribution transformer overload phenomenon, and according to the line, switch and transformer equipment, combined with the real-time operation mode of the power grid, when necessary Improve the efficiency of abnormal data collection and data transmission security of power supply equipment through the recall and measurement of the power consumption information collection system, use advanced sensing technology to improve the perceptibility level of equipment status, and automatically analyze equipment status through intelligent components to grasp all or part of the important The operation status of the distribution lines in the district regulation;

(4) With the help of the application of line overload data analysis, the distribution network can grasp the authenticity and accuracy of the fault information at the first time, and the early warning analysis of overload can eliminate the danger in the bud before the equipment fails, effectively reducing the equipment The number of faults and the level of lean management of the distribution network. Gradually realize emergency repair duty personnel and emergency repair dispatchers to grasp the status of the power grid and equipment in advance, perform fault location, dispatch workers and rush repairs in a timely manner, effectively improve active repair capabilities, improve fault repair efficiency, reduce distribution network security risks, and comprehensively improve power supply quality service level .

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is a schematic diagram of the system structure of the present invention.

Fig. 2 is a flow chart of the positioning method.

Fig. 3 is a flowchart of a fault location scheme matching the ID number assigned to the distribution automation system.

detailed description:

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As shown in Figure 1, a distribution network fault location system combined with line overload data analysis includes a line overload data analysis server and a distribution network fault location server, and the distribution network fault location server and distribution automation system, 95598 The system, on-site line inspection monitoring device, and the power consumption information collection system are connected. The distribution automation system is used to push the distribution network fault information to the distribution network fault location server; the 95598 system is used to push the user repair information to the distribution network. Power grid fault location server; the on-site line inspection monitoring device is used to transmit the fault information detected by on-site line inspection to the distribution network fault location server; the power consumption information collection system is used to send the collected power outage information to the distribution network A power grid fault location server; the distribution network fault location server also stores a set of location fault solutions;

The line overload data analysis server is connected to the distribution network fault location server, reads the relevant power consumption information, calculates and screens the data according to the current and voltage data of the power supply line, screens out overloaded and heavy-loaded lines, and transmits Provide distribution network fault location server;

The distribution network fault location server is used for:

Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; A matching fault location solution in the fault location solution set is bound;

Receive the information transmitted by the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and correlate with the corresponding ID numbers for classification and storage, and combine the overload information determined by the line overload data analysis server with the ID number The bound fault location scheme performs fault location on information with the same ID number and overloaded lines respectively and outputs the location results.

The distribution network fault location system combined with line overload data analysis of the present invention integrates the fault collection systems of distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and receives accurate, Reliable, comprehensive and timely state information, and then use the corresponding positioning fault scheme stored in the distribution network fault location server to carry out classified fault judgment, which can accurately locate distribution network faults, and provide emergency repairs for distribution networks, distribution network construction, and grid structures. The decision-making of the transformation provides a reference; at the same time, based on the analysis data of the distribution network line overload data and the operation and distribution data, combined with the actual situation, relevant measures such as replacement of power distribution and replacement of lines can be formulated to deal with future line overload situations.

Further, the system also includes a GIS system, the GIS system is connected to the distribution network fault location server; the GIS system is used to receive the location results output by the distribution network fault location server and display them on the GIS map.

The present invention also integrates the GIS system into the distribution network fault location system combined with line overload data analysis, and finally sends the location results output by the distribution network fault location server to the GIS system and visually displays them on the GIS map in a visual manner.

The second object of the present invention is to provide a positioning method for a distribution network fault location system combined with line overload data analysis.

The location method of the distribution network fault location system combined with line overload data analysis includes:

Step 1: Distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system respectively push distribution network fault information, user repair information, on-site line inspection detection fault information and collected power outage information to power distribution Network fault location server;

Step 2: The distribution network fault location server receives and processes the information transmitted from the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system. The specific processing process is as follows:

Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; A matching fault location solution in the fault location solution set is bound;

The receiving line overload data analysis server reads the relevant power consumption information, calculates and screens the data according to the current and voltage data of the power supply line, screens out overloaded and heavy-duty lines, and transmits them to the distribution network fault location server;

The information transmitted by the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system is associated with the corresponding ID number for classification and storage;

The fault location is performed on the information with the same ID number and the overloaded and overloaded lines confirmed by the line overload data analysis server by using the location fault solution bound to the ID number, and outputs the location results.

The positioning method of the distribution network fault location system combined with the line overload data analysis of the present invention receives the fault information uploaded by the fault collection systems of the distribution automation system, the 95598 system, the on-site line inspection monitoring device and the power consumption information collection system, so that It can receive accurate, reliable, comprehensive, and timely status information covering the distribution network within the jurisdiction, and then use the corresponding positioning fault solution stored in the distribution network fault location server to perform classified fault judgments, and can accurately locate distribution network faults. It provides a reference for decision-making on network emergency repair, distribution network construction, and network frame transformation.

Further, in the distribution network fault location server, the fault location scheme matching the ID number assigned to the distribution automation system is:

Step 1.1: Judging whether the received distribution network fault information sent by the distribution automation system is a temporary fault or a permanent fault; if it is a temporary fault, the fault location ends; otherwise, go to step 1.2;

Step 1.2: According to the topological relationship of the faulty equipment line, analyze the information of the 10kV power outage equipment affected by the fault, and import it into the power outage impact table of the distribution automation system; further analyze the metering box of the power outage according to the topological relationship of the equipment, and according to the user information maintained by the marketing system, put The user information affected by the power outage is imported into the user table affected by the power outage;

Step 1.3: According to the 10kV outage equipment analyzed in step 1.2, analyze the distribution transformer that affects the power outage according to the topological connection of the power grid. If there is no power outage, the fault location is completed; if there is a power outage transformer, continue to step 1.4;

Step 1.4: According to the network topology connection, continue to analyze down to the user meter box, import the analyzed outage equipment into the outage impact table, and enter step 1.5;

Step 1.5: Associate the outage meter box analyzed in step 1.4 according to the equipment information in the user's repair information. If it is associated, a record affecting the 95598 work order will be generated; if it is not associated, no record will be generated, and the fault location is completed.

The effect is: this method can accurately locate the faulty equipment and the power outage area and users caused by the fault, facilitate on-site repair personnel to understand the fault details and formulate fault solutions, select appropriate repair equipment and materials, and reduce faults caused by faults. Time wasted due to ignorance of the details leading to incorrect solution formulation or incorrect carrying of emergency repair equipment. Actively send power outage information notifications to the analyzed power outage users and inform them of fault handling, reducing the number of user fault repairs and improving user satisfaction.

Further, in the distribution network fault location server, the fault location scheme that matches the system ID number assigned to 95598 is:

Step 2.1: According to the account number in the user's repair information, query the marketing data and judge the user's electricity bill information. If there is arrears, draw a fault conclusion that the user is in arrears, and the fault judgment is over; if there is no arrears information, go to step 2.2;

Step 2.2: Call and measure the information of the user’s electric energy meter. If the measured data has voltage and no current, it can be concluded that the user’s electric meter is abnormal. If there is voltage and current, it can be concluded that the user’s electric energy meter is normal; if there is no voltage and current, go to step 2.3;

Step 2.3: Call and measure the information of the user's distribution transformer, if there is voltage and current, draw the conclusion of abnormality of the household meter, and draw the conclusion of abnormality of the low-voltage line if the voltage and current lack of phase; if there is no voltage and current, go to step 2.4;

Step 2.4: Compare the line power outage information accessed through the distribution network fault location system to whether the line where the user equipment is located is associated with the known line power outage data. If the connection is not found, draw the conclusion that the upstream transformer of the line where the user is located is abnormal; If it is associated, the specific power outage information that affects the user's power outage can be obtained: planned, temporary, and failure and end.

Its effect is: the administrative address in the user repair information is converted into the power equipment information in the power distribution grid, and through the query of marketing management information, it is judged whether the user's power outage is in arrears, and the arrears are directly fed back to the user to avoid blindness Waste of emergency repair resources caused by labor dispatch. If it is not a case of arrears, analyze the cause of the fault and locate the fault point, so that the on-site repair personnel can understand the details of the fault, formulate a suitable repair plan, quickly complete the fault processing, reduce power outages, and improve user satisfaction.

Further, in the distribution network fault location server, the fault location scheme that matches the ID number assigned to the on-site line inspection monitoring device is:

Step 3.1: Preliminarily locate the fault range based on the received fault information sent by the on-site line inspection monitoring device, such as locating to the low-voltage metering box, transfer to the fault judgment process of the user's repair report and output the judgment conclusion; if the fault point is located on the medium-voltage line, Transfer to medium-voltage fault location judgment and output the judgment conclusion; if the fault point is located on the low-voltage line, enter step 3.2;

Step 3.2: According to the low-voltage line attribute of the fault location, measure the real-time voltage and current of the transformer on the line. If there are three-phase voltage and current, it is judged that the low-voltage line is abnormal; if there is a phase loss, it is judged that the low-voltage line is abnormal; Step 3.3;

Step 3.3: Correlate with the power outage line through the known power outage information that has been connected in the system. If the connection fails, it is judged that the transformer is abnormal; if it is connected, it is judged as a planned or temporary or fault power outage, and the end

The effect is: accurately locate the faulty equipment, facilitate the formulation of emergency repair plan and the dispatch of emergency repair personnel and materials. Further through historical data analysis, the lines or equipment with three or more power outages are derived to provide a basis for distribution network transformation.

Further, in the distribution network fault location server, the fault location scheme that matches the ID number assigned to the power consumption information collection system is:

Step 4.1: Associate each collection terminal device in the uploaded electrical information collection system with the power-off device, and query the type of device from the device library. If it is a user electric energy meter device, the fault location is completed; if it is a distribution transformer device, go to step 4.2 ;

Step 4.2: Call and measure the real-time voltage and current data of the transformer. If there is current and voltage, it is judged as an invalid fault if the three phases are complete; if there is no voltage and current, go to step 4.3;

Step 4.3: Step 4.2 judges the transformer with no current and voltage, and derives the line according to the line topology connection, and correlates with the line through the known power outage information that has been connected in the fault location system of the distribution network. The transformer is abnormal; if it is connected, it is judged to be a planned or temporary or faulty power outage, and it ends.

The effect is: accurately locate the faulty equipment, facilitate the formulation of emergency repair plan and the dispatch of emergency repair personnel and materials. Further through historical data analysis, the lines or equipment with three or more power outages are derived to provide a basis for distribution network transformation.

Further, the method further includes: the distribution network fault location server sends the output location result to the GIS system, and displays it on the GIS map.

The invention sends the positioning result output by the distribution network fault positioning server to the GIS system and visually displays it on the GIS map.

The third object of the present invention is to provide another distribution network fault location method combined with line overload data analysis.

The distribution network fault location method combined with line overload data analysis is completed in a distribution network fault location server, and a set of location fault solutions is stored in the distribution network fault location server; the method specifically includes:

Step (1): Assign a unique ID number to the distribution automation system, 95598 system, on-site line inspection monitoring device, and power consumption information collection system; The ID number is bound to a matching fault location solution in the set of fault location solutions;

Step (2): Receive the information transmitted from the distribution automation system, 95598 system, on-site line inspection monitoring device and power consumption information collection system, and correlate with corresponding ID numbers for classified storage;

Step (3): Use the fault location scheme bound to the ID number to perform fault location on the information with the same ID number and output the location results.

Among them, the line load confirmation method can be selected as follows: collect all data such as current and voltage of the power supply line, perform data calculation and screening, screen out overloaded and heavy-duty lines, monitor overloaded lines, and combine fault information with heavy-duty lines for judgment and analysis .

Collect line current data from the distribution automation system every 5 minutes,

Find out the current and other information of all lines with five minutes as a point in the last hour (a total of 12 points in one hour), and calculate the average load rate.

First find out the average load rate of the line for five minutes:

Line average load rate (five minutes) = line actual current phase sum/line rated current sum;

The average load rate of the line in one hour: the average load rate of the line (one hour) = the sum of the average load rate of the line (five minutes)/12;

It is normal that the line load rate is less than 70%;

The line load rate between 70% and 100% and continuous operation for more than 2 hours are overloaded;

If the line load rate exceeds 100% and runs continuously for more than 1 hour, it is overloaded.

It is necessary to carry out real-time monitoring and real-time collection of operating data parameters for tens of thousands of lines in different geographical locations, collect line operating data in real time through the power consumption information collection system, and select massive data that affects the distribution transformer overload. The mining and analysis of equipment and customer data, and the application of city network distribution transformer overload early warning analysis scenarios are quite difficult, because it is obviously unrealistic to use conventional communication to solve the line operation overload early warning and data communication of the monitoring center. The present invention utilizes the existing distribution network to collect and analyze the data of the lines, thereby solving the most important technical problem. Analyze and judge the overload abnormality of distribution lines, improve the efficiency of data collection for overload abnormalities of distribution lines and the safety of data transmission.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (10)

1. a kind of combined circuit overloads the Distribution Fault Location System of data analysis, it is characterized in that：Including circuit overload data Analysis server and distribution network failure location-server, the distribution network failure location-server and electrical power distribution automatization system, 95598 systems, live line walking monitoring device are connected with power information acquisition system, and the electrical power distribution automatization system is used for distribution Fault message pushes to distribution network failure location-server；95598 system is used to user's repairing information pushing to distribution Net fault location server；The fault message that the live line walking monitoring device is used to detect live line walking is sent to power distribution network Fault location server；The power information acquisition system, which is used to send the outage information collected to distribution network failure, to be positioned Server；Also be stored with positioning malfunction approach set in the distribution network failure location-server；

The circuit overload data analytics server, is connected with distribution network failure location-server, reads related power information, According to the electric current of supply line, voltage data, the calculating and screening of data are carried out, overload, heavy-haul line is filtered out, is transferred to and matches somebody with somebody Electric network fault location-server；

The distribution network failure location-server, it is used for：

One is distributed respectively by electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system Unique ID number；Further according to the attribute of each positioning malfunction approach in positioning malfunction approach set, by each No. ID and the failure The fault location scheme of a matching is bound in targeting scheme set；

Receive the letter that electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system transmission come Cease and corresponding ID number is respectively associated and carry out classification storage, the mistake information carrying determined in combination with circuit overload data analytics server Breath, fault location is carried out using the positioning malfunction approach with No. ID binding to the information with identical No. ID with overload circuit respectively And export positioning result.

2. a kind of combined circuit as claimed in claim 1 overloads the Distribution Fault Location System of data analysis, it is characterized in that： The system also includes generalized information system, and the generalized information system is connected with distribution network failure location-server；The generalized information system is used to receive The positioning result of distribution network failure location-server output is simultaneously shown in GIS map.

3. the localization method of the Distribution Fault Location System of combined circuit overload data analysis as claimed in claim 1 or 2, It is characterized in that：Including：

Step one：Electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system respectively will Distribution Network Failure information, user's repairing information, the fault message of live line walking detection and the outage information that collects, which are pushed to, matches somebody with somebody Electric network fault location-server；

Step 2：Distribution network failure location-server receives electrical power distribution automatization system, 95598 systems, live line walking monitoring device With power information acquisition system transmission come information and handled, concrete processing procedure is：

One is distributed respectively by electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system Unique ID number；Further according to the attribute of each positioning malfunction approach in positioning malfunction approach set, by each No. ID and the failure The fault location scheme of a matching is bound in targeting scheme set；

Receiving circuit overload data analytics server reads related power information, according to the electric current of supply line, voltage data, The calculating and screening of data are carried out, overload, heavy-haul line is filtered out, is transferred to distribution network failure location-server；

The information that electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system transmission come is simultaneously Corresponding ID number is respectively associated and carries out classification storage；

Receive using the positioning malfunction approach with No. ID binding respectively to the information with identical No. ID, and circuit overload data Overload and heavy-haul line that Analysis server confirms, carry out fault location and export positioning result.

4. localization method as claimed in claim 3, it is characterized in that：In the distribution network failure location-server, with distribution It is to No. ID fault location scheme matched of electrical power distribution automatization system：

Step 1.1：The next Distribution Network Failure information progress failure judgement of electrical power distribution automatization system transmission of distributing to reception is to face When failure or permanent fault；If temporary derangement, then fault location terminates；Otherwise step 1.2 is entered；

Step 1.2：According to faulty equipment line topological relation, the 10kV power failure equipments information of fault impact is analyzed, distribution is imported Automated system has a power failure in influence table；The batch meter of power failure is further analyzed according to equipment topological relation, according to marketing system The user profile of maintenance, the user profile for the influence that has a power failure is imported in the influence user's table that has a power failure；

Step 1.3：The 10kV power failure equipments analyzed according to step 1.2, according to power network topology connection, down analyzing influence has a power failure Distribution transformer, if nothing, fault location terminates；If there is the transformer of power failure, step 1.4 is gone successively to；

Step 1.4：Continue down to analyze until user's electricity box according to power network topology connection, the power failure equipments analyzed are imported and stopped Film rings table, into step 1.5；

Step 1.5：The power failure electricity box that facility information associated steps 1.4 in user's repairing information are analyzed, are such as associated with, Just generation influences the record of 95598 work orders；If association is not less than generating record, fault location terminates.

5. localization method as claimed in claim 3, it is characterized in that：In the distribution network failure location-server, with distribution It is to the fault location scheme that system identifiers No. 95598 match：

Step 2.1：According to the family number in user's repairing information, marketing data is inquired about, demand charge information is judged, such as arrearage is obtained The conclusion that is out of order subscriber arrearage, breakdown judge terminates；Such as without arrearage information, into step 2.2；

Step 2.2：Call survey user's electric energy meter information together, calling the data measured together has voltage no current to draw knot abnormal after user's table By there is voltage to there is electric current to draw the normal conclusion of electric supply meter；As no-voltage and electric current enter step 2.3；

Step 2.3：Call the information for surveying user's distribution transformer together, there is voltage and electric current, draw the abnormal conclusion of family table, voltage x current lacks Mutually draw the abnormal conclusion of low-voltage circuit；No-voltage electric current, into step 2.4；

Step 2.4：The line outage information accessed by Distribution Fault Location System, comparing user equipment place circuit is In line outage data known to no association, if not associating, the up transformer exception conclusion of circuit where user is drawn；If closing On connection, the specific outage information that influence user has a power failure is drawn：Plan, interim and failure simultaneously terminate.

6. localization method as claimed in claim 3, it is characterized in that：In the distribution network failure location-server, with distribution The fault location scheme matched to live line walking monitoring device ID is：

Step 3.1：The fault message that the live line walking monitoring device transmission of reception comes is subjected to fault coverage Primary Location, it is such as fixed Low-pressure metering box is arrived in position, turns user and reports breakdown judge process for repairment and export judgement conclusion；Such as localization of fault to middle line ball Road, turns middle pressure fault location and judges and export judgement conclusion；As localization of fault to low-voltage circuit enters step 3.2；

Step 3.2：According to the low-voltage circuit attribute of fault location, the real-time voltage electric current of transformer on survey line road, such as three-phase are called together Voltage x current has, and is judged as that low-voltage circuit is abnormal；Such as phase shortage, it is judged as that low-voltage circuit is abnormal；As no-voltage electric current enters step Rapid 3.3；

Step 3.3：Associated, if not associating, be judged as with the dead line by the known outage information accessed in system Transformer exception；Such as in association, it is judged as plan or interim or fault outage, terminates.

7. localization method as claimed in claim 3, it is characterized in that：In the distribution network failure location-server, with distribution It is to No. ID fault location scheme matched of power information acquisition system：

Step 4.1：Each acquisition terminal equipment in the power utilization information collection system of upload is associated in the equipment having a power failure, slave unit storehouse The type of query facility, is such as user's electric energy meter equipment, and fault location terminates；It is such as distribution transformer equipment, into step 4.2；

Step 4.2：Call the real-time voltage current data for surveying transformer together, if any Current Voltage, three-phase is complete to be judged as invalid failures； Such as no-voltage electric current, into step 4.3；

Step 4.3：Step 4.2 judges the transformer of no current voltage, is connected according to line topological, exports the circuit, passes through The known outage information accessed in Distribution Fault Location System is associated with the circuit, if not associating, is judged as transformer It is abnormal；Such as in association, it is judged as plan or interim or fault outage, terminates.

8. localization method as claimed in claim 3, it is characterized in that：This method also includes：Distribution network failure location-server will The positioning result of output is sent to generalized information system, and is shown in GIS map.

The present invention positioning result that exports distribution network failure location-server is sent to generalized information system and in GIS map with can Intuitively show depending on change mode.

9. localization method as claimed in claim 3, it is characterized in that：Completed in distribution network failure location-server, it is described to match somebody with somebody Electric network fault location-server internal memory contains positioning malfunction approach set；This method is specifically included：

Step (1)：By electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system difference Distribute a unique ID number；Further according to the attribute of each positioning malfunction approach in positioning malfunction approach set, by each No. ID with The fault location scheme of a matching is bound in the fault location scheme set；

Step (2)：Electrical power distribution automatization system, 95598 systems, live line walking monitoring device and power information acquisition system is received to pass The information sent simultaneously is respectively associated corresponding ID number and carries out classification storage；

Step (3)：Using the positioning malfunction approach with No. ID binding respectively to carrying out fault location with the information of identical No. ID And export positioning result.

10. localization method as claimed in claim 3, it is characterized in that：Line load confirmation method is：Gather the electricity of supply line All data such as stream, voltage, carry out the calculating and screening of data, filter out overload, heavy-haul line, overload circuit monitoring, weight Circuit combination failure information is carried to study and judge analysis.