An online self-healing test system

Abstract

Embodiments of the present application disclose an online self-healing test system. The system can comprise: an operation and maintenance master station, a power distribution terminal, and a self-healing tester deployed for testing the power distribution terminal; wherein the operation and maintenance master station is configured to generate a self-healing test case for the power distribution terminal, and send the self-healing test case to the self-healing tester; the self-healing tester is configured to execute the received self-healing test case for the power distribution terminal, and upload a first terminal signal of the power distribution terminal collected to the operation and maintenance master station; the power distribution terminal is configured to upload a second terminal signal collected to the operation and maintenance master station; and the operation and maintenance master station is further configured to compare the received first terminal signal and the second terminal signal, and compare with a preset power distribution network self-healing strategy, to test the power distribution network self-healing strategy. The technical solution of the embodiments of the present application can realize online testing of the power distribution network self-healing strategy.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of power distribution network technology, and in particular to an online self-healing testing system. Background Technology

[0002] As a core function of the distribution network, the correctness of its operating logic is crucial to ensuring the rapid isolation of faults and the rapid restoration of power supply. Therefore, any new distribution network self-healing function must undergo a rigorous and comprehensive testing and verification process.

[0003] Currently, field testing of the self-healing function of distribution networks mostly adopts local mode, such as terminal injection method, hybrid injection method or case pre-setting method. The core is to calculate the electrical quantity of each station through power flow, and then control the synchronous output of the test instrument status sequence through networking or time synchronization. At the same time, the main station maintenance personnel manually check and judge whether the distribution network self-healing strategy is correct on the main station side.

[0004] However, during on-site testing, since most distribution terminals use wireless communication, the communication quality is inconsistent, often resulting in situations where the terminal side operates correctly, but the self-healing strategy of the distribution network on the main station side is incorrect. This issue urgently needs to be addressed. Summary of the Invention

[0005] This invention provides an online self-healing testing system to realize online testing of the self-healing strategy of the power distribution network.

[0006] According to one aspect of the present invention, an online self-healing testing system is provided, which may include: an operation and maintenance master station, a power distribution terminal, and a self-healing tester deployed for testing the power distribution terminal;

[0007] Among them, the operation and maintenance master station is used to generate self-healing test cases for power distribution terminals and send the self-healing test cases to the self-healing tester.

[0008] The self-healing tester is used to perform the received self-healing test cases on the power distribution terminal and upload the first terminal signal of the power distribution terminal to the operation and maintenance master station.

[0009] The power distribution terminal is used to upload the self-collected signals from the second terminal to the operation and maintenance master station.

[0010] The operation and maintenance master station is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0011] Optionally, the above-mentioned online self-healing testing system also includes: a scheduling and control system;

[0012] Among them, the operation and maintenance master station is specifically used to generate self-healing test cases for power distribution terminals and send the self-healing test cases to the dispatch and control system.

[0013] The scheduling and control system is used to forward the received self-healing test cases to the self-healing tester.

[0014] The self-healing tester is specifically used to perform the received self-healing test case on the power distribution terminal and upload the first terminal signal of the power distribution terminal to the dispatch control system.

[0015] The power distribution terminal is specifically used to upload the self-collected second terminal signal to the dispatch and control system;

[0016] The dispatch control system is also used to forward the received first terminal signal and second terminal signal to the operation and maintenance master station.

[0017] In addition, the above-mentioned online self-healing testing system may optionally include: a data forwarding service;

[0018] Specifically, the scheduling and control system is used to forward the received self-healing test cases to the self-healing tester through a data forwarding service.

[0019] The dispatch and control system is also specifically used to forward the received first terminal signal and second terminal signal to the operation and maintenance master station through the data forwarding service.

[0020] Optionally, the self-healing tester is also used to send a registration message to the operation and maintenance master station to establish a link with the operation and maintenance master station through the registration message;

[0021] The operation and maintenance master station is also used to send the switch name of the switch under test corresponding to the power distribution terminal to the self-healing tester when the connection is successfully established.

[0022] The self-healing tester is also used to obtain site information selected for the received switch name and send the site information to the operation and maintenance main station;

[0023] The operation and maintenance master station is also used to bind the self-healing tester to the switch site represented by the received site information based on the site information.

[0024] Optionally, the registration message may include an Internet Protocol address and an access password.

[0025] Among them, the main operation and maintenance station is also used to establish a link with the self-healing tester when the received Internet Protocol address and access password are correct.

[0026] The main operation and maintenance station is also used to establish an access channel based on the Internet Protocol address when the received Internet Protocol address does not exist and the received access password is correct, so as to establish a link with the self-healing tester through the access channel.

[0027] Optionally, the self-healing tester is also used to generate topology information associated with the power distribution terminal and upload the topology information to the operation and maintenance master station;

[0028] The main operation and maintenance station is specifically used to draw a topology file based on the received topology information, generate self-healing test cases for the power distribution terminal based on the topology file, and send the self-healing test cases to the self-healing tester.

[0029] On this basis, optionally, the self-healing tester is also specifically used to respond to the topology information generation command associated with the power distribution terminal, obtain the generation information, generate topology information based on the generation information, and upload the topology information to the operation and maintenance master station. The generated information includes the current node name of the current node, the previous node name of the previous node of the current node, the next node name of the next node of the current node, and the switch type corresponding to the current node, the previous node, and the next node.

[0030] Optional, the operation and maintenance master station is specifically used to obtain the test lines that erred in the self-healing strategy at the time of the fault based on the historical data of each power distribution line.

[0031] The main operation and maintenance station is specifically used to generate self-healing test cases for the power distribution terminals on the line under test based on the type of error in the self-healing strategy, and then send the self-healing test cases to the self-healing tester.

[0032] Based on this, optionally, the operation and maintenance master station is specifically used to determine the indicator to be tested according to the type of error in the self-healing strategy action, and to determine the matching test case that matches the indicator to be tested from each candidate test case;

[0033] The main operation and maintenance station is specifically used to send the matching test cases as self-healing test cases generated for the power distribution terminals deployed on the line under test to the self-healing tester.

[0034] Optionally, the operation and maintenance master station is also used to store the current test results of the distribution network self-healing strategy based on a preset storage strategy, wherein the preset storage strategy includes at least one of the following:

[0035] Store the results of the current test;

[0036] Store the test results for the current test based on either an overwrite or append method; and...

[0037] Based on the results of this test, the previous test results of the distribution network self-healing strategy are also covered.

[0038] The online self-healing test system described in this invention embodiment may include: an operation and maintenance master station, a distribution terminal, and a self-healing tester deployed for testing the distribution terminal. Specifically, the operation and maintenance master station generates self-healing test cases for the distribution terminal and sends these cases to the self-healing tester. The self-healing tester executes the received self-healing test cases on the distribution terminal and uploads the collected first terminal signal from the distribution terminal to the operation and maintenance master station. The distribution terminal uploads its self-collected second terminal signal to the operation and maintenance master station. The operation and maintenance master station compares the received first and second terminal signals with a preset distribution network self-healing strategy to test the distribution network self-healing strategy. This invention embodiment, by employing an online testing mode, simultaneously verifies the distribution network self-healing strategy on both the master station and local sides, achieving online testing of the distribution network self-healing strategy and meeting the requirements for distribution network self-healing testing.

[0039] It should be understood that the description in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1a This is a first schematic diagram of an optional example of various online self-healing testing systems provided according to embodiments of the present invention;

[0042] Figure 1b This is a second schematic diagram of an optional example of various online self-healing testing systems provided according to embodiments of the present invention;

[0043] Figure 2 This is a structural block diagram of an online self-healing testing system provided according to an embodiment of the present invention;

[0044] Figure 3 This is a structural block diagram of another online self-healing testing system provided according to an embodiment of the present invention;

[0045] Figure 4 This is a structural block diagram of another online self-healing testing system provided according to an embodiment of the present invention;

[0046] Figure 5 This is a structural block diagram of another online self-healing testing system provided according to an embodiment of the present invention;

[0047] Figure 6a This is a first schematic diagram illustrating an example of node names in another online self-healing testing system provided according to an embodiment of the present invention;

[0048] Figure 6b This is a second schematic diagram illustrating an example of a node name in another online self-healing testing system provided according to an embodiment of the present invention;

[0049] Figure 7 This is a structural block diagram of another online self-healing testing system provided according to an embodiment of the present invention. Detailed Implementation

[0050] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. The same applies to "target," "original," etc., and will not be repeated here. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0052] To better understand the online self-healing testing system described in the following embodiments, we will first... Figure 1a and Figure 1b A brief description of the components and workflow of an exemplary online self-healing testing system is provided.

[0053] For example, the online self-healing test system may include five parts: an operation and maintenance master station, a self-healing tester, a power distribution terminal, a data forwarding service, and an operation control system (OCS). The specific functions of each part are as follows:

[0054] Operation and maintenance master station: Deployed in the security zone III of the distribution network dispatch master station, it is mainly used to generate topology files, generate self-healing test cases, receive terminal signals uploaded by self-healing testers and distribution terminals, and generate self-healing test reports.

[0055] Self-healing tester: mainly used to generate topology information, receive self-healing test cases from the operation and maintenance master station, execute self-healing test cases, and receive the first terminal signal from the power distribution terminal.

[0056] Power distribution terminal: The terminal to be tested.

[0057] Data forwarding service: Distributes self-healing test cases to the self-healing tester, and uploads the first terminal signal collected by the self-healing tester to the OCS.

[0058] OCS: Collects the second terminal signal of the power distribution terminal and the first terminal signal of the self-healing tester, and transmits these terminal signals to the operation and maintenance master station located in Safety Zone III through forward and reverse isolation equipment.

[0059] Based on this, the specific workflow of the aforementioned online self-healing testing system is as follows:

[0060] The maintenance master station deployed in Security Zone III identifies the test lines where the self-healing strategy malfunctioned at the time of the fault based on historical data of each power distribution line, and generates a debugging sheet. The debugging sheet includes the switch name of the test line and the Internet Protocol (IP) address of each test site on the test line.

[0061] On-site maintenance personnel view the commissioning order on the web interface, navigate to the line under test, and deploy the self-healing tester at each test site, with the distribution terminal located at each site. After establishing a link between the self-healing tester and the maintenance master station, the personnel click "Get Commissioning Order" and select the current node name, the previous node name, and the next node name, as well as the corresponding switch types for each node. After configuration, the personnel click "Upload Topology," and the self-healing tester uploads the topology information to the maintenance master station.

[0062] Then, the main operations and maintenance station analyzes the topology information of each site under test and draws a topology file based on the analysis results. After the topology file is successfully drawn, the main operations and maintenance personnel set up self-healing test cases based on the topology file and click to generate self-healing test cases. At this time, the main operations and maintenance station can automatically generate self-healing test cases to be executed by self-healing testers deployed at different sites under test, as well as action strategies for each state sequence.

[0063] Furthermore, after the maintenance master station sends the self-healing test case to the self-healing tester, the maintenance master station begins the test. The self-healing tester collects the first terminal signal from the distribution terminal and sends it to the maintenance master station. At the same time, the maintenance master station obtains the second terminal signal from the distribution terminal and sends it to the OCS. The two signals are then ANDed and compared with the preset distribution network self-healing strategy to obtain a self-healing test report, which is then electronically archived.

[0064] The online self-healing testing system described above will now be explained in detail with reference to the following embodiments.

[0065] Figure 2 This is a structural block diagram of an online self-healing testing system provided in an embodiment of the present invention. This embodiment is applicable to online testing of self-healing strategies for power distribution networks.

[0066] See Figure 2 The online self-healing test system described in this embodiment of the invention includes: an operation and maintenance master station 10, a power distribution terminal 11, and a self-healing tester 12 deployed for testing the power distribution terminal 11.

[0067] Among them, the operation and maintenance master station 10 is used to generate self-healing test cases for the power distribution terminal 11 and send the self-healing test cases to the self-healing tester 12.

[0068] The self-healing tester 12 is used to perform the received self-healing test case on the power distribution terminal 11 and upload the first terminal signal of the power distribution terminal 11 to the operation and maintenance master station 10.

[0069] The power distribution terminal 11 is used to upload the self-collected second terminal signal to the operation and maintenance master station 10;

[0070] The operation and maintenance master station 10 is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0071] In this invention, the power distribution terminal 11 can be understood as the terminal to be tested. Optionally, in this embodiment, the power distribution terminal 11 may also be called a feeder terminal or a feeder automation terminal, etc., without specific limitation.

[0072] The self-healing tester 12 can be deployed after the power distribution terminal 11 on the line to be tested is identified, and it has a plug-and-play relationship with the maintenance master station 10.

[0073] Self-healing test cases can be understood as cases used to test the self-healing strategy of the distribution network. In this embodiment of the invention, optionally, the self-healing test case may also be called a feeder automation (FA) test case, etc., without specific limitation.

[0074] The first terminal signal can be understood as the signal collected by the self-healing tester 12 of the power distribution terminal 11 during the test, and more particularly as the signal collected from the action output of the power distribution terminal 11. The second terminal signal can be understood as the signal obtained by the power distribution terminal 11 through signal acquisition during the test. In this embodiment of the invention, optionally, both the first terminal signal and the second terminal signal can be real-time signals.

[0075] Unlike conventional on-site testing of distribution network self-healing strategies, the online self-healing testing system proposed in this invention tests the strategy online. It combines the real-time second terminal signal from the distribution terminal 11 with the real-time first terminal signal collected locally by the self-healing tester 12. On one hand, during the load increase process, the self-healing tester 12 collects the action signal (i.e., the first terminal signal) of the distribution terminal 11 in real time. On the other hand, the operation and maintenance master station 10 of the distribution automation dispatch monitors the second terminal signal sent by the distribution terminal 11 in real time. The two sets of signals are then combined to verify signal consistency, avoiding misjudgments caused by signal loss due to communication quality issues, location faults in the operation and maintenance master station 10, or inconsistencies between the distribution network self-healing strategy and the actual actions of the distribution terminal 11 monitored on-site. Furthermore, after performing an AND operation between the first terminal signal collected by the self-healing tester 12 and the second terminal signal monitored in real time by the operation and maintenance master station 10, the result is compared with the pre-set distribution network self-healing strategy of the operation and maintenance master station 10, eliminating the need for manual judgment of the self-healing strategy's correctness. This eliminates the need for manual intervention, making the self-healing test results more consistent with the actual situation.

[0076] The online self-healing test system described in this invention embodiment may include: an operation and maintenance master station, a distribution terminal, and a self-healing tester deployed for testing the distribution terminal. Specifically, the operation and maintenance master station generates self-healing test cases for the distribution terminal and sends these cases to the self-healing tester. The self-healing tester executes the received self-healing test cases on the distribution terminal and uploads the collected first terminal signal from the distribution terminal to the operation and maintenance master station. The distribution terminal uploads its self-collected second terminal signal to the operation and maintenance master station. The operation and maintenance master station compares the received first and second terminal signals with a preset distribution network self-healing strategy to test the distribution network self-healing strategy. This invention embodiment, by employing an online testing mode, simultaneously verifies the distribution network self-healing strategy on both the master station and local sides, achieving online testing of the distribution network self-healing strategy and meeting the requirements for distribution network self-healing testing.

[0077] An optional technical solution is that the operation and maintenance master station is further used to store the current test results of the distribution network self-healing strategy based on a preset storage strategy, wherein the preset storage strategy includes at least one of the following:

[0078] Store the results of the current test;

[0079] Store the test results for the current test based on either an overwrite or append method; and...

[0080] Based on the results of this test, the previous test results of the distribution network self-healing strategy are also covered.

[0081] In this technical solution, based on actual needs analysis, the storage of test results can be mainly divided into three cases: The first case is to directly store the test results, that is, to store each test result and mark it with "sample unique identifier + test time"; the second case is to store each test result, but when storing the test results, depending on the test situation, it is possible to choose to overwrite the previous test results or append the test results. If it is the former, the previous test results can be updated with "sample unique identifier + latest test time". If it is the latter, the previous test results can be retained while storing the test results with "sample unique identifier + latest test time"; the third case is to automatically overwrite the previous test results, that is, to always retain only the latest test results.

[0082] Optionally, after the test is completed, the main operation and maintenance station can generate an electronic self-healing test report based on the test results. This self-healing test report can include information such as expected action strategies, actual action strategies, and test screenshots, thus truthfully recording the test process.

[0083] The above technical solution allows for the selection of appropriate preset storage strategies to store test results based on actual needs, which facilitates further application of the test results.

[0084] Figure 3 This is a structural block diagram of another online self-healing testing system provided by an embodiment of the present invention. This embodiment is based on the above-mentioned technical solutions and optimized. In this embodiment, optionally, the above-mentioned online self-healing testing system further includes: a dispatch control system; wherein, the operation and maintenance master station is specifically used to generate self-healing test cases for the power distribution terminal and send the self-healing test cases to the dispatch control system; the dispatch control system is used to forward the received self-healing test cases to the self-healing tester; the self-healing tester is specifically used to execute the received self-healing test cases for the power distribution terminal and upload the first terminal signal of the power distribution terminal collected to the dispatch control system; the power distribution terminal is specifically used to upload the second terminal signal collected by itself to the dispatch control system; the dispatch control system is also used to forward the received first terminal signal and second terminal signal to the operation and maintenance master station. The explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here.

[0085] For details, see Figure 3The online self-healing test system described in this embodiment includes: an operation and maintenance master station 20, a power distribution terminal 21, a dispatch control system 22, and a self-healing tester 23 deployed for testing the power distribution terminal 21.

[0086] Among them, the operation and maintenance master station 20 is used to generate self-healing test cases for the power distribution terminal 21 and send the self-healing test cases to the dispatch control system 22;

[0087] The dispatch control system 22 is used to forward the received self-healing test cases to the self-healing tester 23;

[0088] The self-healing tester 23 is used to perform the received self-healing test case on the power distribution terminal 21 and upload the first terminal signal of the power distribution terminal 21 to the dispatch control system 22.

[0089] The power distribution terminal 21 is used to upload the self-collected second terminal signal to the dispatch control system 22;

[0090] The dispatch control system 22 is also used to forward the received first terminal signal and second terminal signal to the operation and maintenance master station 20;

[0091] The operation and maintenance master station 20 is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0092] The technical solution of this invention, by setting up a scheduling and control system, realizes the effective flow of self-healing test cases and terminal signals between the operation and maintenance master station, the power distribution terminal, and the self-healing tester.

[0093] An optional technical solution, the aforementioned online self-healing testing system, further includes: a data forwarding service;

[0094] Specifically, the scheduling and control system is used to forward the received self-healing test cases to the self-healing tester through a data forwarding service.

[0095] The dispatch and control system is also specifically used to forward the received first terminal signal and second terminal signal to the operation and maintenance master station through the data forwarding service.

[0096] The above technical solution achieves secure and efficient data flow through data forwarding services.

[0097] Figure 4This is a structural block diagram of another online self-healing testing system provided by an embodiment of the present invention. This embodiment is based on and optimized from the above-mentioned technical solutions. In this embodiment, optionally, the self-healing tester is further configured to send a registration message to the operation and maintenance master station to establish a link with the operation and maintenance master station through the registration message; the operation and maintenance master station is further configured to send the switch name of the switch under test corresponding to the power distribution terminal to the self-healing tester when the link is successfully established; the self-healing tester is further configured to obtain the site information selected for the received switch name and send the site information to the operation and maintenance master station; the operation and maintenance master station is further configured to bind the self-healing tester to the switch site represented by the site information according to the received site information. The explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here.

[0098] For details, see Figure 4 The online self-healing test system described in this embodiment includes: an operation and maintenance master station 30, a power distribution terminal 31, and a self-healing tester 32 deployed for testing the power distribution terminal 31;

[0099] Among them, the self-healing tester 32 is used to send a registration message to the operation and maintenance master station 30 to establish a link with the operation and maintenance master station 30 through the registration message;

[0100] The maintenance master station 30 is used to send the switch name of the switch under test corresponding to the power distribution terminal 31 to the self-healing tester 32 when the connection is successfully established.

[0101] The self-healing tester 32 is also used to obtain site information selected for the received switch name and send the site information to the operation and maintenance master station 30;

[0102] The maintenance master station 30 is also used to bind the self-healing tester 32 to the switch station represented by the received station information based on the station information received.

[0103] The maintenance master station 30 is also used to generate self-healing test cases for the power distribution terminal 31 and send the self-healing test cases to the self-healing tester 32.

[0104] The self-healing tester 32 is also used to perform the received self-healing test case on the power distribution terminal 31 and upload the first terminal signal of the power distribution terminal 31 to the operation and maintenance master station 30.

[0105] The power distribution terminal 31 is used to upload the self-collected second terminal signal to the operation and maintenance master station 30;

[0106] The operation and maintenance master station 30 is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0107] The technical solution of this invention, by binding the self-healing tester to the operation and maintenance master station, facilitates the subsequent testing process of the distribution network self-healing strategy.

[0108] One optional technical solution is that the registration message includes an Internet Protocol address and an access password;

[0109] Among them, the main operation and maintenance station is also used to establish a link with the self-healing tester when the received Internet Protocol address and access password are correct.

[0110] The main operation and maintenance station is also used to establish an access channel based on the Internet Protocol address when the received Internet Protocol address does not exist and the received access password is correct, so as to establish a link with the self-healing tester through the access channel.

[0111] The above technical solution can establish a link between the self-healing tester and the operation and maintenance master station under different circumstances.

[0112] Based on this, in order to better understand the various technical solutions described in the embodiments of the present invention, the following will be combined with Figure 1a The given examples are provided for illustrative purposes. For an example, see [link to example]. Figure 1a The specific implementation process is as follows:

[0113] The self-healing tester and the secure access zone need to communicate with each other using encryption. In order to ensure normal communication between the self-healing tester and the secure access zone, the maintenance personnel need to configure the built-in encrypted communication module of the self-healing tester and authenticate the encryption certificate, so as to ensure that the Transmission Control Protocol (TCP) link between the self-healing tester and the secure access zone is normal.

[0114] After initial configuration, the TCP link between the data forwarding service located in the front-end zone of the operations and maintenance master station and the OCS located in security zone I is active. The OCS can communicate normally with the operations and maintenance master station located in zone III.

[0115] After the self-healing tester is powered on, its TCP link with the main maintenance station is established. However, the main maintenance station does not know the site information of the corresponding switch site for each self-healing tester, making it impossible to bind the self-healing tester to the corresponding switch site. Therefore, when the self-healing tester comes online, it can actively send a registration message to the main maintenance station. This registration message can include the IP address and access password. If both the IP address and access password are correct, a link is established between the main maintenance station and the self-healing tester. If the IP address does not exist locally but the access password is correct, the main maintenance personnel need to establish an access channel for that IP address and establish a link. After the link is successfully established, the main maintenance station can send the switch name of the switch to be tested to the self-healing tester. The on-site maintenance personnel manually select the site information corresponding to the self-healing tester, click register, and send the site name, ID number, and IP address of the self-healing tester's SIM card to the main maintenance station. The main maintenance station then binds the self-healing tester to its corresponding switch site.

[0116] The above example uses plug-and-play technology, which enables plug-and-play between the self-healing tester and the maintenance master station without the need for complicated communication configuration, thus providing great convenience.

[0117] Figure 5 This is a structural block diagram of another online self-healing testing system provided by an embodiment of the present invention. This embodiment is based on and optimized from the above-described technical solutions. In this embodiment, optionally, the self-healing tester is also used to generate topology information associated with the power distribution terminal and upload the topology information to the operation and maintenance master station; the operation and maintenance master station is specifically used to draw a topology file based on the received topology information, generate self-healing test cases for the power distribution terminal based on the topology file, and send the self-healing test cases to the self-healing tester. The explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here.

[0118] For details, see Figure 5 The online self-healing test system described in this embodiment includes: an operation and maintenance master station 40, a power distribution terminal 41, and a self-healing tester 42 deployed for testing the power distribution terminal 41.

[0119] Among them, the self-healing tester 42 is used to generate topology information associated with the power distribution terminal 41 and upload the topology information to the operation and maintenance master station 40;

[0120] The operation and maintenance master station 40 is used to draw a topology file based on the received topology information, generate a self-healing test case for the power distribution terminal 41 based on the topology file, and send the self-healing test case to the self-healing tester 42.

[0121] The self-healing tester 42 is also used to perform the received self-healing test case on the power distribution terminal 41 and upload the first terminal signal of the power distribution terminal 41 to the operation and maintenance master station 40.

[0122] The power distribution terminal 41 is used to upload the self-collected second terminal signal to the operation and maintenance master station 40;

[0123] The operation and maintenance master station 40 is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0124] The technical solution of this invention adopts topology automatic generation technology. After the self-healing tester sends the topology information to the operation and maintenance master station, the operation and maintenance master station can automatically draw the topology file according to the topology information of each site under test. That is, there is no need to draw the topology file manually, which effectively reduces the labor cost.

[0125] An optional technical solution, the self-healing tester, is further specifically used to respond to a topology information generation command associated with the power distribution terminal, acquire the generated information, generate topology information based on the generated information, and upload the topology information to the operation and maintenance master station. The generated information includes the current node name of the current node, the previous node name of the previous node of the current node, the next node name of the next node of the current node, and the switch type corresponding to the current node, the previous node, and the next node.

[0126] The above technical solution achieves effective generation of topology information by using the node name and corresponding switch type of each node.

[0127] Based on this, in order to better understand the various technical solutions described in the embodiments of the present invention, the following will be combined with Figure 6a and Figure 6b The given example is provided for illustrative purposes. The specific implementation process is as follows:

[0128] After the on-site maintenance personnel establish a link between the self-healing tester and the maintenance main station, they can click to obtain the debugging form. After obtaining the debugging form, the on-site maintenance personnel can obtain the names of all nodes on the line under test.

[0129] See Figure 6a and Figure 6b Taking KG1 as an example, the on-site maintenance personnel select the current node name as KG1, the previous node name as CK1, the next node name as KG2, and the switch type as sectional switch.

[0130] Taking branch switch KG7 as an example again, the on-site maintenance personnel selected the current node name as KG7, the previous node name as KG2, the next node name as KG3, and the switch type as branch switch.

[0131] The configuration methods for the remaining nodes are the same as described above, and will not be repeated here. In this example, the node name can optionally be called the site name, which can be set according to actual needs, and no specific limitation is made here.

[0132] After completing the form, click "Upload Topology Information." The self-healing tester will then upload the topology information to the operations and maintenance main station. The main station can then analyze the topology information of each site under test and generate a topology file (i.e., a test topology diagram).

[0133] In the example above, the self-healing tester uses automatic topology generation technology to generate topology information based on its own location information and upload the topology information to the operation and maintenance master station. Then, the operation and maintenance master station can automatically generate a test topology map based on the topology information of each site under test, without the need for manual drawing, thereby effectively reducing labor costs.

[0134] Figure 7 This is a structural block diagram of another online self-healing testing system provided by an embodiment of the present invention. This embodiment is based on and optimized from the above-described technical solutions. In this embodiment, optionally, the operation and maintenance master station is specifically used to obtain the test line from each power distribution line where the self-healing strategy malfunctioned at the time of the fault, based on the historical data of each power distribution line; the operation and maintenance master station is specifically used to generate self-healing test cases for the power distribution terminals on the test line according to the type of self-healing strategy malfunction, and send the self-healing test cases to the self-healing tester. The explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here.

[0135] For details, see Figure 7 The online self-healing test system described in this embodiment includes: an operation and maintenance master station 50, a power distribution terminal 51, and a self-healing tester 52 deployed for testing the power distribution terminal 51.

[0136] Among them, the operation and maintenance master station 50 is used to obtain the test line that erred in the self-healing strategy at the time of the fault from each power distribution line based on the historical data of each power distribution line.

[0137] The maintenance master station 50 is also used to generate self-healing test cases for the power distribution terminal 51 deployed on the line under test based on the type of error in the self-healing strategy, and send the self-healing test cases to the self-healing tester 52.

[0138] The self-healing tester 52 is used to perform the received self-healing test case on the power distribution terminal 51 and upload the first terminal signal of the power distribution terminal 51 to the operation and maintenance master station 50.

[0139] The power distribution terminal 51 is used to upload the self-collected second terminal signal to the operation and maintenance master station 50.

[0140] The operation and maintenance master station 50 is also used to compare the received first terminal signal and second terminal signal, and compare them with the preset distribution network self-healing strategy to test the distribution network self-healing strategy.

[0141] The technical solution of this invention generates self-healing test cases for the power distribution terminal on the line under test by identifying the types of errors in the self-healing strategy, thereby improving the accuracy of self-healing test case generation.

[0142] An optional technical solution is an operation and maintenance master station, which is specifically used to determine the indicator to be tested based on the type of error in the self-healing strategy action, and to determine the matching test case that matches the indicator to be tested from each candidate test case;

[0143] The main operation and maintenance station is specifically used to send the matching test cases as self-healing test cases generated for the power distribution terminals deployed on the line under test to the self-healing tester.

[0144] The above technical solution generates self-healing test cases by matching them with each candidate test case, which further improves the accuracy of self-healing test case generation.

[0145] Based on this, in order to better understand the various technical solutions described in the embodiments of the present invention, the following exemplary description is provided in conjunction with specific examples. For example, the specific implementation process is as follows:

[0146] The maintenance master station deployed in Security Zone III identifies the test lines where the self-healing strategy malfunctioned at the time of the fault based on historical data from each power distribution line, and matches self-healing test cases according to the type of error in the self-healing strategy on the test line. To simplify the workload of the master station maintenance personnel, self-healing test cases are automatically generated. Self-healing test cases are divided into several states, such as initial state, fault state, and final state, with different states serving as candidate test cases. When generating self-healing test cases, the system automatically traverses each candidate test case based on the indicator to be tested, extracting candidate test cases related to the indicator to form the self-healing test cases. When no corresponding candidate test case exists for the indicator to be tested, the system automatically prompts relevant personnel to intervene.

[0147] In addition, typical self-healing strategies can be generated based on the expert database and compared and analyzed with the actual self-healing strategies of the distribution network on site.

[0148]

[0149] Referring to the table above, taking overcurrent faults as an example, overcurrent faults are divided into three states: initial state 1, fault state 2, and final state 3. The initial and final states remain unchanged. The three-phase currents and durations of the fault states are pre-bound to the overcurrent fault threshold and time, respectively, and set to 1.2 times the threshold, generating a state sequence. During an overcurrent fault, all switches upstream of the fault point are in an overcurrent state, while the switches downstream of the fault point are not faulty.

[0150] The above example demonstrates the automatic generation of self-healing test cases.

[0151] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An online self-healing test system, characterized by, Comprise: An operation and maintenance master station, a power distribution terminal, and a self-healing tester deployed for testing the power distribution terminal; The operation and maintenance master station is configured to generate a self-healing test case for the power distribution terminal, and send the self-healing test case to the self-healing tester; The self-healing tester is configured to execute the received self-healing test case for the power distribution terminal, and upload a first terminal signal of the power distribution terminal collected to the operation and maintenance master station; The power distribution terminal is configured to upload a second terminal signal collected to the operation and maintenance master station; The operation and maintenance master station is further configured to compare the received first terminal signal and the second terminal signal, and compare with a preset power distribution network self-healing strategy to test the power distribution network self-healing strategy; The operation and maintenance master station is specifically configured to obtain a to-be-tested line with a self-healing strategy action error at a fault moment from each power distribution line according to historical data of each power distribution line; The operation and maintenance master station is specifically configured to generate a self-healing test case for the power distribution terminal on the to-be-tested line according to a type of the self-healing strategy action error, and send the self-healing test case to the self-healing tester; The operation and maintenance master station is specifically configured to determine a to-be-tested index according to the type of the self-healing strategy action error, and determine a matching test case matching the to-be-tested index from each candidate test case; The operation and maintenance master station is specifically configured to send the matching test case as a self-healing test case generated for the power distribution terminal deployed on the to-be-tested line to the self-healing tester.

2. The system of claim 1, wherein, Further comprise: A dispatching control system; The operation and maintenance master station is specifically configured to generate a self-healing test case for the power distribution terminal, and send the self-healing test case to the dispatching control system; The dispatching control system is configured to forward the received self-healing test case to the self-healing tester; The self-healing tester is specifically configured to execute the received self-healing test case for the power distribution terminal, and upload a first terminal signal of the power distribution terminal collected to the dispatching control system; The power distribution terminal is specifically configured to upload a second terminal signal collected to the dispatching control system; The dispatching control system is further configured to forward the received first terminal signal and the second terminal signal to the operation and maintenance master station.

3. The system of claim 2, wherein, Further comprise: A data forwarding service; The dispatching control system is specifically configured to forward the received self-healing test case to the self-healing tester through the data forwarding service; The dispatching control system is further specifically configured to forward the received first terminal signal and the second terminal signal to the operation and maintenance master station through the data forwarding service.

4. The system of claim 1, wherein: The self-healing tester is further configured to send a registration packet to the operation and maintenance master station to establish a link between the self-healing tester and the operation and maintenance master station through the registration packet; The operation and maintenance master station is further configured to send a switch name of a to-be-tested switch corresponding to the power distribution terminal to the self-healing tester in a case that the link is successfully established; The self-recovery tester is further configured to acquire site information corresponding to the received switch name selection, and send the site information to the operation and maintenance master station. The operation and maintenance master station is further configured to bind the self-recovery tester to a switch site represented by the received site information.

5. The system of claim 4, wherein, The registration packet comprises an Internet protocol address and an access password. The operation and maintenance master station is further configured to establish a link between the self-recovery tester and the operation and maintenance master station when the received Internet protocol address and the received access password are both correct. The operation and maintenance master station is further configured to establish an access channel according to the received Internet protocol address when the received Internet protocol address is incorrect and the received access password is correct, and establish a link between the self-recovery tester and the operation and maintenance master station through the access channel.

6. The system of claim 1, wherein: The self-recovery tester is further configured to generate topology information associated with the power distribution terminal, and upload the topology information to the operation and maintenance master station. The operation and maintenance master station is specifically configured to draw a topology file according to the received topology information, generate a self-recovery test case for the power distribution terminal according to the topology file, and send the self-recovery test case to the self-recovery tester.

7. The system of claim 6, wherein: The self-recovery tester is further specifically configured to acquire generation information according to a topology information generation instruction associated with the power distribution terminal, generate topology information according to the generation information, and upload the topology information to the operation and maintenance master station, wherein the generation information comprises a current node name of a current node, a previous node name of a previous node of the current node and a next node name of a next node of the current node, and switch types corresponding to the current node, the previous node and the next node.

8. The system of claim 1, wherein: The operation and maintenance master station is further configured to store a current test result of the power distribution network self-recovery strategy based on a preset storage strategy, wherein the preset storage strategy comprises at least one of the following: store the current test result; store the current test result based on a coverage mode or an additional mode; and cover a previous test result of the power distribution network self-recovery strategy based on the current test result.

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