A power distribution terminal test method and device based on actual fixed values

Abstract

The present application relates to power distribution automation test technical field, specifically provide a kind of based on actual fixed value's power distribution terminal test method and device, comprising: with the measured power distribution terminal establishes communication, reads the actual protection fixed value and protection function of measured power distribution terminal and is put off state;According to the actual protection fixed value and protection function of the measured power distribution terminal Automatic matching and selecting corresponding test case;According to the test case of matching completion, according to the setting ratio of actual protection fixed value Calculation and output analog quantity excitation and apply to the measured power distribution terminal;The response data of the measured power distribution terminal is collected, and the test result is determined according to the response data and automatically generates test report.The technical scheme provided by the present application realizes the full-process automation of fixed value reading, case selection, excitation application, result determination, greatly improves test efficiency, cooperates with main station end to point plug-in, realizes dispatching end and field end integration automatic point, facilitates popularization and application.

Description

Technical Field

[0001] This invention relates to the field of power distribution automation testing technology, and specifically to a power distribution terminal testing method and apparatus based on actual set values. Background Technology

[0002] With the rapid advancement of distribution automation construction, distribution terminals must complete commissioning, dispatching alignment, and functional verification before being put into operation. Traditional testing methods require manual reading of setpoints, manual compilation of test cases, manual application of stimuli, and manual judgment of results. This is not only inefficient and prone to errors, but also results in inconsistencies between the test cases and the actual setpoints and operational status of the terminals, failing to accurately reflect the actual operating performance of the terminals.

[0003] Currently, the large number of distribution terminals and the heavy workload of on-site commissioning mean that manual point-to-point testing consumes a significant amount of manpower and time, becoming a major factor restricting the installation and commissioning of distribution terminals. Existing testing equipment and systems are unable to automatically complete case selection, excitation application, and result judgment based on the actual settings of the terminals. Summary of the Invention

[0004] To overcome the above-mentioned defects, this invention proposes a method and apparatus for testing power distribution terminals based on actual set values.

[0005] Firstly, a method for testing distribution terminals based on actual set values ​​is provided, the method comprising: Establish communication with the power distribution terminal under test, and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; The test case is automatically matched and selected based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. Based on the completed test cases, the analog excitation is calculated and output according to the set multiple of the actual protection setting and applied to the tested power distribution terminal. The system collects response data from the power distribution terminal under test, determines the test results based on the response data, and automatically generates a test report.

[0006] Preferably, the power distribution terminal is an electromagnetic, electronic, and / or digital power distribution terminal.

[0007] Preferably, the actual protection setting includes at least one of the following: overcurrent setting, zero-sequence setting, and time setting, and the protection function enable / disable status includes at least one of the following: overcurrent protection enable / disable status, zero-sequence protection enable / disable status, and reclosing enable / disable status.

[0008] Preferably, during the process of automatically matching and selecting corresponding test cases based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test, the test items corresponding to the power distribution terminal under test not having its protection function activated are automatically masked in the matched test cases.

[0009] Preferably, the analog quantity includes at least one of the following: current, voltage, electronic small signal, and digital signal.

[0010] Preferably, the response data includes at least one of the following: protection action output signal, remote signaling change signal, and fault recording start signal.

[0011] Preferably, the step of determining the test result based on the response data includes: Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action time in the response data is within the time limit requirement corresponding to the actual protection setting. If so, the protection function action time of the tested power distribution terminal protection function is qualified; otherwise, the protection function action time of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the deviation between the telemetry values ​​of current and voltage sent by the power distribution terminal under test and the telemetry values ​​of current and voltage in the response data is within the accuracy requirement range. If so, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is qualified; otherwise, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is unqualified. Verify whether the remote signaling signal in the response data has changed correctly. If so, the remote signaling change of the tested power distribution terminal is qualified; otherwise, the remote signaling change of the tested power distribution terminal is unqualified.

[0012] Furthermore, the remote signaling signal includes at least one of the following: protection action signal, fault type signal, and switch position signal.

[0013] Secondly, a distribution terminal testing device based on actual set values ​​is provided, the distribution terminal testing device based on actual set values ​​comprising: The reading module is used to establish communication with the power distribution terminal under test and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. The matching module is used to automatically match and select the corresponding test case based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; The test module is used to calculate and output analog excitation according to the set multiple of the actual protection setting based on the matched test cases and apply it to the power distribution terminal under test. The verification module is used to collect the response data of the power distribution terminal under test, determine the test results based on the response data, and automatically generate a test report.

[0014] Thirdly, a computer device is provided, comprising: one or more processors; The processor is used to execute one or more programs; When the one or more programs are executed by the one or more processors, the power distribution terminal testing method based on actual set values ​​is implemented.

[0015] Fourthly, a computer-readable storage medium is provided having a computer program stored thereon, wherein when the computer program is executed, the power distribution terminal testing method based on actual set values ​​is implemented.

[0016] The above-described technical solutions of the present invention have at least one or more of the following beneficial effects: This invention provides a method and apparatus for testing distribution terminals based on actual set values, comprising: establishing communication with the distribution terminal under test, reading the actual protection set values ​​and protection function activation / deactivation status of the distribution terminal under test; automatically matching and selecting corresponding test cases based on the actual protection set values ​​and protection function activation / deactivation status of the distribution terminal under test; calculating and outputting analog excitation according to a set multiple of the actual protection set values ​​based on the matched test cases, and applying it to the distribution terminal under test; collecting the response data of the distribution terminal under test, determining the test results based on the response data, and automatically generating a test report. The technical solution provided by this invention automates the entire process of set value reading, case selection, excitation application, and result determination, significantly improving testing efficiency. Combined with a master station-end point-to-point plug-in, it achieves integrated automatic point-to-point communication between the dispatching end and the field end, facilitating widespread application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main steps of the power distribution terminal testing method based on actual set values ​​according to an embodiment of the present invention. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 See appendix Figure 1 , Figure 1 This is a schematic flowchart illustrating the main steps of a power distribution terminal testing method based on actual set values, according to an embodiment of the present invention. Figure 1 As shown, the distribution terminal testing method based on actual set values ​​in this embodiment of the invention mainly includes the following steps: Step S101: Establish communication with the power distribution terminal under test, and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. The test system establishes a communication connection with the power distribution terminal under test through Ethernet, WiFi or 4G / 5G and other communication methods. After the communication is established, the test system automatically sends a setting call command to the power distribution terminal and reads the actual protection settings and activation / deactivation status of the terminal currently in operation.

[0021] In this embodiment, the power distribution terminal is an electromagnetic, electronic, and / or digital power distribution terminal.

[0022] In this embodiment, the actual protection setting includes at least one of the following: overcurrent setting, zero-sequence setting, and time setting; and the protection function enable / disable status includes at least one of the following: overcurrent protection enabled / disabled status, zero-sequence protection enabled / disabled status, and reclosing enabled / disabled status.

[0023] By directly reading the actual set values ​​from the terminal, errors that may occur due to manual input of set values ​​are avoided, ensuring that the test is based on the actual operating parameters of the terminal.

[0024] Step S102: Automatically match and select the corresponding test case based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; In this embodiment, during the process of automatically matching and selecting corresponding test cases based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test, the test items corresponding to the power distribution terminal under test not having its protection function activated are automatically masked in the matched test cases.

[0025] The testing system has a built-in test case library, which contains predefined test case templates for various protection functions. Each test case template includes information such as test items, test steps, and expected result judgment criteria. During the automatic matching process, the system first filters based on the read activation / deactivation status: for protection functions that are not activated, the corresponding test items are automatically blocked, and only test cases that match the activation / deactivation status are executed. For example, if any overcurrent protection is in the deactivation state, all test items for the corresponding overcurrent protection are automatically skipped. Subsequently, the testing system selects or adjusts test cases from the case library based on the actual set value. The test cases will be automatically set to output test stimuli at a set multiplier based on the actual set value.

[0026] Step S103: Based on the completed test case, calculate and output the analog excitation according to the set multiple of the actual protection setting and apply it to the tested power distribution terminal; In this embodiment, the analog quantity includes at least one of the following: current and voltage, electronic small signal, and digital signal.

[0027] The testing system automatically calculates and outputs analog excitation based on the matched test cases and the set multiplier of the actual value. The test stimulus output is completed through the test system's conventional analog output channel, electronic small signal output channel, or digital output channel. Each channel can be configured independently and supports mixed output mode to adapt to the interface requirements of different types of power distribution terminals.

[0028] Step S104: Collect the response data of the power distribution terminal under test, determine the test results based on the response data, and automatically generate a test report. This invention is applicable to automated and intelligent functional performance testing of power distribution terminals. It directly reads the actual operating setpoints of the power distribution terminal under test, and automatically matches test cases and outputs test stimuli accordingly, realizing one-click automated testing.

[0029] In this embodiment, the response data includes at least one of the following: protection action output signal, remote signaling change signal, and fault recording start signal.

[0030] In this embodiment, the step of determining the test result based on the response data includes: Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action time in the response data is within the time limit requirement corresponding to the actual protection setting. If so, the protection function action time of the tested power distribution terminal protection function is qualified; otherwise, the protection function action time of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the deviation between the telemetry values ​​of current and voltage sent by the power distribution terminal under test and the telemetry values ​​of current and voltage in the response data is within the accuracy requirement range. If so, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is qualified; otherwise, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is unqualified. Verify whether the remote signaling signal in the response data has changed correctly. If so, the remote signaling change of the tested power distribution terminal is qualified; otherwise, the remote signaling change of the tested power distribution terminal is unqualified.

[0031] In one embodiment, the remote signaling signal includes at least one of the following: protection action signal, fault type signal, and switch position signal.

[0032] After the test is completed, the testing system automatically generates a test report. The test report includes information such as: set values, stimuli, responses, and judgment conclusions. The test report can be exported in multiple formats such as PDF and Word for easy archiving and traceability.

[0033] Working principle: Based on the core principle of setpoint-driven testing, this invention achieves automated and accurate testing of power distribution terminals. First, it establishes a connection with the terminal under test through communication methods such as Ethernet / 4G / 5G, automatically reads the protection settings and function activation / deactivation status of the terminal in actual operation, and constructs a test benchmark dataset. The intelligent matching engine automatically filters test cases based on the actual set value, hides test items corresponding to functions that have not been implemented, and automatically calculates the excitation parameters of each test point according to the set value multiplier. The excitation output unit outputs analog or digital excitation through the corresponding channel according to the terminal interface type, while the input channel collects the terminal action response in real time. The result judgment unit compares the actual response with the expected result based on the set value in multiple dimensions and automatically gives a qualified judgment. The main station terminal interacts synchronously with the scheduling main station to complete the end-to-end data consistency verification. The entire process does not require manual input of set values ​​or compilation of test sequences, making it easy to promote and use.

[0034] Example 2 Based on the same inventive concept, the present invention also provides a distribution terminal testing device based on actual set values, the distribution terminal testing device based on actual set values ​​comprising: The reading module is used to establish communication with the power distribution terminal under test and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. The matching module is used to automatically match and select the corresponding test case based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; The test module is used to calculate and output analog excitation according to the set multiple of the actual protection setting based on the matched test cases and apply it to the power distribution terminal under test. The verification module is used to collect the response data of the power distribution terminal under test, determine the test results based on the response data, and automatically generate a test report.

[0035] Preferably, the power distribution terminal is an electromagnetic, electronic, and / or digital power distribution terminal.

[0036] Preferably, the actual protection setting includes at least one of the following: overcurrent setting, zero-sequence setting, and time setting, and the protection function enable / disable status includes at least one of the following: overcurrent protection enable / disable status, zero-sequence protection enable / disable status, and reclosing enable / disable status.

[0037] Preferably, during the process of automatically matching and selecting corresponding test cases based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test, the test items corresponding to the power distribution terminal under test not having its protection function activated are automatically masked in the matched test cases.

[0038] Preferably, the analog quantity includes at least one of the following: current, voltage, electronic small signal, and digital signal.

[0039] Preferably, the response data includes at least one of the following: protection action output signal, remote signaling change signal, and fault recording start signal.

[0040] Preferably, the step of determining the test result based on the response data includes: Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action time in the response data is within the time limit requirement corresponding to the actual protection setting. If so, the protection function action time of the tested power distribution terminal protection function is qualified; otherwise, the protection function action time of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the deviation between the telemetry values ​​of current and voltage sent by the power distribution terminal under test and the telemetry values ​​of current and voltage in the response data is within the accuracy requirement range. If so, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is qualified; otherwise, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is unqualified. Verify whether the remote signaling signal in the response data has changed correctly. If so, the remote signaling change of the tested power distribution terminal is qualified; otherwise, the remote signaling change of the tested power distribution terminal is unqualified.

[0041] Furthermore, the remote signaling signal includes at least one of the following: protection action signal, fault type signal, and switch position signal.

[0042] Example 3 Based on the same inventive concept, this invention also provides a computer device, which includes a processor and a memory. The memory stores a computer program, which includes program instructions. The processor executes the program instructions stored in the computer storage medium. The processor may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing and control core of the terminal, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to implement corresponding method flows or corresponding functions, thereby realizing the steps of a power distribution terminal testing method based on actual set values ​​in the above embodiments.

[0043] Example 4 Based on the same inventive concept, this invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and extended storage media supported by the computer device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, this storage space also stores one or more instructions suitable for loading and execution by a processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be high-speed RAM or non-volatile memory, such as at least one disk storage device. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the steps of the power distribution terminal testing method based on actual set values ​​in the above embodiments.

[0044] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0045] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0046] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0047] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for testing distribution terminals based on actual set values, characterized in that, The method includes: Establish communication with the power distribution terminal under test, and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; The test case is automatically matched and selected based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. Based on the completed test cases, the analog excitation is calculated and output according to the set multiple of the actual protection setting and applied to the tested power distribution terminal. The system collects response data from the power distribution terminal under test, determines the test results based on the response data, and automatically generates a test report.

2. The method as described in claim 1, characterized in that, The power distribution terminal is an electromagnetic, electronic, and / or digital power distribution terminal.

3. The method as described in claim 1, characterized in that, The actual protection setting includes at least one of the following: overcurrent setting, zero-sequence setting, and time setting. The protection function enable / disable status includes at least one of the following: overcurrent protection enabled / disabled status, zero-sequence protection enabled / disabled status, and reclosing enabled / disabled status.

4. The method as described in claim 1, characterized in that, During the process of automatically matching and selecting corresponding test cases based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test, the test items corresponding to the power distribution terminal under test not having protection functions activated in the matched test cases are automatically masked.

5. The method as described in claim 1, characterized in that, The analog quantity includes at least one of the following: current, voltage, electronic small signal, and digital signal.

6. The method as described in claim 1, characterized in that, The response data includes at least one of the following: protection action output signal, remote signaling change signal, and fault recording start signal.

7. The method as described in claim 1, characterized in that, The step of determining the test result based on the response data includes: Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action time in the response data is within the time limit requirement corresponding to the actual protection setting. If so, the protection function action time of the tested power distribution terminal protection function is qualified; otherwise, the protection function action time of the tested power distribution terminal protection function is unqualified. Verify whether the protection function action value in the response data is within the allowable error range of the actual protection setting. If it is, the protection function action value of the tested power distribution terminal protection function is qualified; otherwise, the protection function action value of the tested power distribution terminal protection function is unqualified. Verify whether the deviation between the telemetry values ​​of current and voltage sent by the power distribution terminal under test and the telemetry values ​​of current and voltage in the response data is within the accuracy requirement range. If so, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is qualified; otherwise, the telemetry acquisition accuracy of the protection function of the power distribution terminal under test is unqualified. Verify whether the remote signaling signal in the response data has changed correctly. If so, the remote signaling change of the tested power distribution terminal is qualified; otherwise, the remote signaling change of the tested power distribution terminal is unqualified.

8. The method as described in claim 7, characterized in that, The remote signaling signal includes at least one of the following: protection action signal, fault type signal, and switch position signal.

9. An apparatus for testing distribution terminals based on actual set values ​​as described in any one of claims 1-9, characterized in that, The device includes: The reading module is used to establish communication with the power distribution terminal under test and read the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test. The matching module is used to automatically match and select the corresponding test case based on the actual protection settings and protection function activation / deactivation status of the power distribution terminal under test; The test module is used to calculate and output analog excitation according to the set multiple of the actual protection setting based on the matched test cases and apply it to the power distribution terminal under test. The verification module is used to collect the response data of the power distribution terminal under test, determine the test results based on the response data, and automatically generate a test report.

10. A computer device, characterized in that, include: One or more processors; The processor is used to execute one or more programs; When the one or more programs are executed by the one or more processors, the distribution terminal testing method based on actual set values ​​as described in any one of claims 1 to 9 is implemented.

11. A computer-readable storage medium, characterized in that, It contains a computer program, which, when executed, implements the distribution terminal testing method based on actual set values ​​as described in any one of claims 1 to 9.

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