Distributed fault diagnosis automation algorithm for power transmission line

Abstract

The invention discloses an automatic algorithm for distributed fault diagnosis of a power transmission line, and the algorithm specifically comprises the following steps: carrying out the cleaning of a plurality of fault detection end components, carrying out the operation detection of the components, enabling the components to carry out the waveform collection of the distributed power transmission line when the detection of the components is normal, and carrying out the detection of the distributed power transmission line in the waveform collection process. Timing is performed through an external timer, waveform and time data are integrated into a coordinate system, and the data are calculated according to an image and a formula to obtain the position of a fault point of the power transmission line. According to the distributed fault diagnosis automation algorithm for the power transmission line, before fault detection of the distributed power transmission line, the cleaning module is used for cleaning the measurement module, so that the influence of impurity attachment on subsequent detection is reduced, fault detection processing is carried out on the measurement module, and the detection efficiency is improved. The influence on the detection result of the line fault point position caused by the fault of the measuring end is reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution network detection, and in particular to an automatic algorithm for distributed fault diagnosis of power transmission lines. Background Art

[0002] After a transmission line fails, it is necessary to diagnose the fault location. For this purpose, a corresponding automated algorithm is required. Referring to a transmission line distributed fault diagnosis automated algorithm with reference to publication number CN110221172B, three groups of traveling wave acquisition devices located on the same side of the fault point are used to collect the fault traveling wave and fit it into the coordinate system. According to the comparison of multiple collected waveforms, the time when the traveling wave acquisition device collects the reflected wave can be accurately determined. As described in the above patent, when the existing transmission line distributed fault diagnosis automated algorithm is used, most of them ignore the influence of external impurities attached to the detection end and whether it can operate normally on the diagnosis result of the distributed transmission line, which in turn affects the diagnostic accuracy of the algorithm. In addition, it is difficult to perform timed maintenance and debugging after the detection end fails, which affects the detection efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an automated algorithm for distributed fault diagnosis of power transmission lines, which solves the problems of the algorithm ignoring impurities attached to the detection end and whether it can operate normally affecting the diagnosis results and detection accuracy.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a distributed fault diagnosis automation algorithm for transmission lines, specifically comprising the following steps:

[0005] Step 1: After cleaning several fault detection end components, perform operation detection on them. When the components are detected to be operating normally, the components are used to collect and process the waveforms of the distributed transmission lines. During the waveform collection process, the waveform and time data are integrated into a coordinate system through an external timer. The data is calculated based on the image and formula to obtain the location of the fault point of the transmission line and feed it back to the projection end and the data storage end, prompting the detection end to repair the fault point of the transmission line;

[0006] Step 2: In step 1, when the fault detection end component cannot operate normally, the alarm module transmits the signal of the corresponding position to the maintenance module, so that the maintenance module performs maintenance on the fault detection end component. After the maintenance is completed, the detection steps are repeated. When the firmware detection end component can operate normally, it performs waveform acquisition and processing on the distributed transmission line. In the above process, the maintenance position of the detection point, the number of maintenance times, the line waveform image, and the calculation data are transmitted to the data storage module. The data storage module verifies the corresponding data stored in the database with the transmission data through the verification module inside it, and feeds back the processing results to the database for recording.

[0007] Preferably, in step one, after the coordinate system image is sorted, the sorted data is calculated and processed by the calculation module to obtain the fault point location, and the calculated data and process are transmitted to the data storage module.

[0008] The present invention also discloses an application system of a distributed fault diagnosis automation algorithm for a power transmission line, including a test module for debugging and detecting a line fault detection end, and a maintenance module for repairing components of the line fault detection end;

[0009] A judgment module, which judges whether the repaired line fault detection end components can operate;

[0010] An imaging module detects and organizes the waveform of the distributed transmission line at the fault end into images;

[0011] A calculation module calculates the fault location of the distributed transmission line based on the detection data;

[0012] Data storage module, storing maintenance data, imaging data, and calculation data;

[0013] The end module is used to terminate the fault diagnosis operation.

[0014] Preferably, the test module is connected to the maintenance module and the judgment module respectively, and the test module includes a measuring module, an alarm module, and a cleaning module. The measuring module is used for measuring the waveform of the shaft end of the transmission line fault point, and the alarm module is used for measuring module alarm. The measuring module and the line fault detection end component are the same component.

[0015] Preferably, the cleaning module is used for cleaning the measurement module, and the alarm module is connected to the maintenance module.

[0016] Preferably, the imaging module is respectively connected to the acquisition module, the calculation module and the data storage module, the imaging module includes a timing module connected to the acquisition module, the imaging module also includes an integration module and a screen projection module, the integration module is respectively connected to the timing module and the screen projection module, the screen projection module is respectively connected to the calculation module and the data storage module.

[0017] Preferably, the integration module is used to fit the integrated line waveform and the timing module timing data into a corresponding coordinate image.

[0018] Preferably, the data storage module is respectively connected to the maintenance module, the imaging module, the calculation module and the end module, and the data storage module includes a verification module, an analysis module and a processing module. The verification module is respectively connected to the maintenance module, the imaging module and the calculation module, and the analysis module is respectively connected to the verification module and the processing module. The verification module and the processing module are both connected to the data storage module. The verification module is used to verify and process the corresponding data stored in the data storage module with the transmission data, the analysis module is used to analyze the difference between the database and the verification information in the data storage module, and the processing module is used to judge and process the difference between the transmission data and the database data.

[0019] Beneficial Effects

[0020] The present invention provides an automated algorithm for distributed fault diagnosis of power transmission lines. Compared with the prior art, it has the following beneficial effects:

[0021] (1) The distributed fault diagnosis automation algorithm of the transmission line is configured with a test module. Before the distributed transmission line fault detection, the cleaning module is used to clean the measurement module to reduce the influence of impurities on subsequent detection. The fault detection processing is performed on the measurement module to reduce the influence of the fault at the measurement end on the detection result of the line fault point, thereby improving the detection accuracy. The faulty measurement module is promptly fed back with the alarm module to facilitate the subsequent timely repair by the maintenance module.

[0022] (2) The distributed fault diagnosis automation algorithm of the transmission line is configured with an imaging module. During the waveform acquisition process, the timing is performed by the timing module. The waveform and time data are integrated into a coordinate image by the integration module and projected on the screen. The calculation module calculates the data according to the image and formula to obtain the location of the fault point of the transmission line and feeds it back to the projection end and the data storage end, so that the detection result is intuitive and the detection end is prompted to repair the fault point of the transmission line.

[0023] (3) The distributed fault diagnosis automation algorithm of the transmission line is configured to transmit the maintenance location of the detection point, the number of maintenance times, the line waveform image, and the operation data to the data storage module. The data storage module verifies the corresponding data stored in the database with the transmission data through the verification module inside it, analyzes the difference between the database data and the transmission data through the analysis module, and judges the difference between the transmission data and the database data through the processing module. Finally, the processing results are fed back to the database for recording, which helps to summarize the detection modules with high failure rates and the transmission line fault areas, thereby facilitating subsequent detection and maintenance processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is the main principle block diagram of the present invention;

[0025] Figure 2 It is the main flow chart of the circuit of the present invention;

[0026] Figure 3 It is a principle block diagram of the test module of the present invention;

[0027] Figure 4 is a principle block diagram of the imaging module of the present invention;

[0028] Figure 5 It is a principle block diagram of the data storage module of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-5 The present invention discloses an automatic algorithm for distributed fault diagnosis of power transmission lines, which specifically includes the following steps:

[0031] Step 1: Clean several fault detection end components through the cleaning module. After the components are cleaned, perform operation detection on the fault detection end components. When the components are detected to be operating normally, the components are used to collect and process the waveforms of the distributed transmission lines. During the waveform collection process, the waveform and time data are integrated into a coordinate system and projected to the monitoring area. The data is calculated according to the image and formula to obtain the location of the fault point of the transmission line and feed it back to the projection end and the data storage end, prompting the detection end to repair the fault point of the transmission line;

[0032] Step 2: In step 1, when the fault detection end component cannot operate normally, the alarm module transmits the fault detection end component signal at the corresponding position to the maintenance module, and the maintenance module performs maintenance processing on the fault detection end component. After the fault detection end component is repaired, the detection step is repeated. When the firmware detection end component can operate normally, it is enabled to perform waveform acquisition and processing on the distributed transmission line. In the above process, the maintenance position of the detection point, the number of maintenance times, the line waveform image, and the calculation data are transmitted to the data storage module. The data storage module verifies the corresponding data stored in the database with the transmission data through the verification module inside it, analyzes the difference between the database data and the transmission data through the analysis module, and judges the difference between the transmission data and the database data through the processing module, and finally feeds back the processing results to the database for recording.

[0033] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art. In step one, after the coordinate system image is sorted, the sorted data is calculated and processed by the calculation module to obtain the fault point location, and the calculated data and process are transmitted to the data storage module.

[0034] See also Figure 1-5 In the first embodiment shown, the present invention also discloses a distributed fault diagnosis automation algorithm application system for power transmission lines, including a test module for debugging and detecting the line fault detection end, a maintenance module for repairing the line fault detection end components; a judgment module for judging whether the repaired line fault detection end components can operate; an imaging module for detecting and arranging the waveform of the distributed power transmission line at the fault end; and a calculation module for calculating the fault position of the distributed power transmission line according to the detection data.

[0035] A data storage module stores maintenance data, imaging data, and calculation data; an end module is used to terminate the fault diagnosis operation; a test module is connected to the maintenance module and the judgment module respectively, and the test module includes a measurement module, an alarm module, and a cleaning module. The measurement module is used for measuring the waveform at the shaft end of the transmission line fault point, and the alarm module is used for measuring the alarm of the measurement module. The measurement module and the line fault detection end component are the same component; the cleaning module is used for cleaning the measurement module, and the alarm module is connected to the maintenance module; before the distributed transmission line fault detection, the measurement module is cleaned by the cleaning module, and then the measurement module is subjected to fault detection processing to reduce the impact of the measurement end fault on the line fault point location detection, and cooperates with the alarm module to timely feedback the faulty measurement module, so as to facilitate the subsequent timely maintenance by the maintenance module;

[0036] The second implementation mode is mainly different from the first implementation mode in that:

[0037] The imaging module is connected to the acquisition module, the calculation module, and the data storage module respectively. The imaging module includes a timing module connected to the acquisition module. The imaging module also includes an integration module and a screen projection module. The integration module is connected to the timing module and the screen projection module respectively. The screen projection module is connected to the calculation module and the data storage module respectively. The integration module is used to fit the integrated line waveform and the timing data of the timing module into a corresponding coordinate image. During the waveform acquisition process, the timing is performed through the timing module, and the waveform and time data are integrated into a coordinate image through the integration module and projected on the screen projection module. The calculation module calculates the data according to the image and formula, obtains the position of the fault point of the transmission line and feeds it back to the screen projection end and the data storage end, prompting the detection end to repair the fault point of the transmission line.

[0038] The third implementation mode is mainly different from the second implementation mode in that:

[0039] The data storage module is connected to the maintenance module, the imaging module, the calculation module, and the end module respectively. The data storage module includes a checking module, an analysis module, and a processing module. The checking module is connected to the maintenance module, the imaging module, and the calculation module respectively. The analysis module is connected to the checking module and the processing module respectively. The checking module and the processing module are both connected to the data storage module. The checking module is used to check and process the corresponding data stored in the data storage module with the transmission data. The analysis module is used to analyze the difference between the database in the data storage module and the checking information.

[0040] The processing module is used to judge and process the difference between the transmission data and the database data, and transmit the maintenance position of the detection point, the number of maintenance times, the line waveform image, and the calculation data to the data storage module. The data storage module verifies and processes the corresponding data stored in the database with the transmission data through the verification module inside it, analyzes the difference between the database data and the transmission data through the analysis module, and judges and processes the difference between the transmission data and the database data through the processing module, and finally feeds back the processing results to the database for recording, which helps to summarize the detection modules and transmission line fault areas with high failure rates, and facilitates subsequent detection and maintenance processing.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated algorithm for distributed fault diagnosis of power transmission lines, characterized by: The specific steps include: Step 1: After cleaning several fault detection end components, perform operation detection on them. When the components are detected to be operating normally, the components are used to collect and process the waveforms of the distributed transmission lines. During the waveform collection process, the waveform and time data are integrated into a coordinate system through an external timer. The data is calculated based on the image and formula to obtain the location of the fault point of the transmission line and feed it back to the projection end and the data storage end, prompting the detection end to repair the fault point of the transmission line; Step 2: In step 1, when the fault detection end component cannot operate normally, the alarm module transmits the signal of the corresponding position to the maintenance module, so that the maintenance module performs maintenance on the fault detection end component. After the maintenance is completed, the detection steps are repeated. When the firmware detection end component can operate normally, the waveform collection and processing of the distributed transmission line is performed. In the above process, the maintenance position of the detection point, the number of maintenance times, the line waveform image, and the calculation data are transmitted to the data storage module. The data storage module verifies the corresponding data stored in the database with the transmission data through the verification module inside it, and feeds back the processing results to the database for recording.

2. The distributed fault diagnosis automation algorithm for power transmission lines according to claim 1 is characterized by: In step 1, after the coordinate system image is sorted, the sorted data is calculated and processed by the calculation module to obtain the fault point location, and the calculated data and process are transmitted to the data storage module.

3. The application system of the distributed fault diagnosis automation algorithm of a power transmission line according to claim 1 comprises a test module for debugging and detecting a line fault detection end, characterized in that: include: Maintenance module, used for line fault detection end component maintenance; A judgment module, which judges whether the repaired line fault detection end components can operate; An imaging module detects and organizes the waveform of the distributed transmission line at the fault end into images; A calculation module calculates the fault location of the distributed transmission line based on the detection data; Data storage module, storing maintenance data, imaging data, and calculation data; The end module is used to terminate the fault diagnosis operation.

4. The application system of the distributed fault diagnosis automation algorithm for power transmission lines according to claim 3 is characterized by: The test module is connected to the maintenance module and the judgment module respectively. The test module includes a measurement module, an alarm module and a cleaning module. The measurement module is used for measuring the waveform of the shaft end of the transmission line fault point. The alarm module is used for measuring module alarm. The measurement module and the line fault detection end component are the same component.

5. The application system of the distributed fault diagnosis automation algorithm for power transmission lines according to claim 4 is characterized by: The cleaning module is used for cleaning the measurement module, and the alarm module is connected to the maintenance module.

6. The application system of the distributed fault diagnosis automation algorithm for power transmission lines according to claim 3 is characterized by: The imaging module is respectively connected to the acquisition module, the calculation module, and the data storage module. The imaging module includes a timing module connected to the acquisition module. The imaging module also includes an integration module and a screen projection module. The integration module is respectively connected to the timing module and the screen projection module. The screen projection module is respectively connected to the calculation module and the data storage module.

7. The application system of the distributed fault diagnosis automation algorithm for power transmission lines according to claim 6 is characterized by: The integration module is used to fit the integrated line waveform and the timing module timing data into a corresponding coordinate image.

8. The application system of the distributed fault diagnosis automation algorithm for power transmission lines according to claim 3 is characterized by: The data storage module is respectively connected to the maintenance module, the imaging module, the calculation module and the end module. The data storage module includes a verification module, an analysis module and a processing module. The verification module is respectively connected to the maintenance module, the imaging module and the calculation module. The analysis module is respectively connected to the verification module and the processing module. The verification module and the processing module are both connected to the data storage module. The verification module is used to verify and process the corresponding data stored in the data storage module with the transmission data. The analysis module is used to analyze the difference between the database and the verification information in the data storage module. The processing module is used to judge and process the difference between the transmission data and the database data.

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