Power distribution terminal-to-point commissioning method and device based on electrical quantity characteristic differentiation

Abstract

The application discloses a power distribution terminal point-to-point joint debugging method and device based on electrical quantity characteristic differentiation, and belongs to the field of power systems. The method comprises the following steps: sending a point-to-point joint debugging work order to a joint debugging device, and performing remote debugging test on the power distribution terminal after receiving the joint debugging request sent by the joint debugging device; sending remote measurement and remote signaling point-to-point test start information to the joint debugging device after the remote debugging test is qualified, and performing differentiated comparison between the response information uploaded by the power distribution terminal after differentiated load increase and a debugging scheme, so that point-to-point verification of different phase remote measurement and different position remote signaling is realized; sending remote control switch closing and opening operation instructions to the power distribution terminal after the remote measurement and remote signaling point-to-point verification is qualified, and judging whether the remote control point-to-point is qualified according to the switch position and the remote signaling position change. The method completes efficient and rapid point-to-point joint debugging test of the power distribution automation terminal through the differentiated load increase method, is beneficial to rapid commissioning of batch power distribution automation terminals, and improves the online rate of the power distribution automation system terminal.

Description

Technical Field

[0001] This invention relates to the field of power systems, and in particular to a method and apparatus for point-to-point commissioning of distribution terminals based on differences in electrical quantity characteristics. Background Technology

[0002] As a crucial piece of equipment in distribution network automation, the stability and reliability of distribution automation terminals directly impact the electricity safety and property security of industries and residents. To ensure the safety and reliability of the distribution network, relevant enterprises and units must invest significant human and material resources in the testing and inspection of distribution terminals, from factory testing by distribution terminal manufacturers to acceptance testing by power companies and annual routine maintenance tests.

[0003] Currently, point-to-point commissioning of power distribution automation terminals mainly relies on manual labor or warehouse commissioning systems. Manual commissioning requires a huge amount of manpower and resources, while the existing warehouse commissioning systems perform point-to-point commissioning based on point numbers in point table files, which is inefficient. Summary of the Invention

[0004] The main objective of this invention is to provide a method for efficient point-to-point commissioning of distribution automation terminals based on differential comparison of electrical quantity characteristics, thereby solving the problem of low commissioning efficiency faced by distribution automation terminals in point-to-point commissioning.

[0005] This invention provides a point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation, comprising: sending a point-to-point commissioning work order to a commissioning device for the commissioning device to generate a corresponding commissioning plan and feed it back to the distribution automation master station; after receiving the commissioning request sent by the commissioning device, performing remote commissioning tests on the distribution terminal, the remote commissioning tests including setting value read / write verification of the distribution terminal, wherein the write setting value of the remote commissioning test is set according to the commissioning plan; after the remote commissioning test is qualified, sending telemetry and telesignal point-to-point test start information to the commissioning device for the commissioning device to perform point-to-point testing according to the commissioning plan. Differential increments are applied, and the response information sent by the distribution terminal after the differential increments is compared with the debugging scheme to achieve point-to-point verification of telemetry for different phases and tele-signaling for different locations. After the telemetry and tele-signaling point-to-point verification is qualified, remote control switch closing and opening operation commands are sent to the distribution terminal, and the remote control point-to-point verification is judged based on the changes in switch position and tele-signaling position. The differential increments ensure that the terminal protection function output is different, the telemetry amplitude for different phases is different, and the switch position has a response change. The response information includes protection action information, voltage and current amplitude, and switch position information.

[0006] In the distribution terminal point-to-point commissioning method based on electrical quantity characteristic differentiation of the present invention, before sending the point-to-point commissioning work order to the commissioning device, the method further includes: generating a corresponding point-to-point commissioning work order based on the point table files of the distribution automation terminal and the distribution automation master station.

[0007] In the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation of the present invention, after sending the point-to-point commissioning work order to the commissioning device, the method further includes: calibrating the received commissioning scheme according to the point-to-point commissioning work order, and after the calibration result is qualified, sending the calibration result to the commissioning device so that the commissioning device can initiate a commissioning request after receiving the qualified result.

[0008] In the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation of the present invention, after calibrating the received commissioning scheme according to the point-to-point commissioning work order, the method further includes: if the calibration result is unqualified, repeating the defect elimination process of the commissioning work order according to the locally stored point table file, and sending the defect-eliminating commissioning work order to the commissioning device for the commissioning device to regenerate the corresponding commissioning scheme, and calibrating the received commissioning scheme according to the new commissioning work order, until the calibration result is qualified.

[0009] In the distribution terminal point-to-point commissioning method based on electrical quantity characteristic differentiation of the present invention, after judging whether the remote control point-to-point is qualified according to the change of switch position and remote signaling position, it further includes: summarizing the relevant remote adjustment, remote measurement, remote signaling and remote control point-to-point commissioning test results, generating a test report for archiving.

[0010] In the point-to-point commissioning method of distribution terminals based on the differentiation of electrical quantity characteristics of the present invention, the differentiation includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

[0011] This invention also provides a distribution automation master station, comprising: a point-to-point commissioning module, used to send a point-to-point commissioning work order to a joint commissioning device, so that the joint commissioning device can generate a corresponding commissioning plan and feed it back to the distribution automation master station; a master station function module, used by the point-to-point commissioning module to perform remote commissioning tests on the distribution terminal after receiving a joint commissioning request from the joint commissioning device, the remote commissioning test including the read / write verification of the distribution terminal's setpoints, wherein the write setpoints of the remote commissioning test are set according to the commissioning plan; the point-to-point commissioning module is further used to send telemetry and tele-signaling point-to-point test start information to the joint commissioning device after the remote commissioning test is qualified, so that the joint commissioning device can generate a corresponding commissioning plan according to the commissioning plan. The system implements differentiated enhancements. The main station functional module compares the response information sent by the distribution terminal after the differentiated enhancements with the debugging scheme to achieve point-to-point verification of telemetry for different phases and tele-signaling for different locations. The main station functional module is also used to send remote control switch closing and opening operation commands to the distribution terminal after the telemetry and tele-signaling point-to-point verification is qualified, and to determine whether the remote control point-to-point verification is qualified based on the changes in switch position and tele-signaling position. The differentiated enhancements ensure that the terminal protection function action outputs different telemetry amplitudes for different phases and that there are response changes in switch position. The response information includes protection action information, voltage and current amplitudes, and switch position information.

[0012] In the power distribution automation master station of the present invention, the point-to-point commissioning module is further configured to: after sending a point-to-point commissioning work order to the commissioning device, calibrate the received commissioning scheme according to the point-to-point commissioning work order, and after the calibration result is qualified, send the calibration result to the commissioning device so that the commissioning device can initiate a commissioning request after receiving the qualified result.

[0013] In the power distribution automation master station of the present invention, the differentiated input includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

[0014] The present invention also provides a computer storage medium storing a computer program executable by a processor, the computer program executing the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation described in any of the preceding claims.

[0015] The beneficial effects of this invention are as follows: First, through information interaction between the main station and the distribution network terminal and the debugging device, a targeted debugging plan is generated, providing data support for subsequent remote adjustment, telemetry, remote signaling, and remote control joint debugging. Second, the reliability of the set values ​​is ensured through the remote adjustment test in the first step of interaction, providing accuracy assurance for subsequent telemetry, remote signaling, and remote control joint debugging. Furthermore, combined with the differentiated addition method in the second step of telemetry and remote signaling, the point-to-point joint debugging test of the distribution automation terminal can be completed efficiently, quickly, and accurately, ultimately significantly improving the efficiency of the entire adjustment process. This facilitates the rapid batch commissioning of distribution automation terminals, increases the online rate of distribution automation system terminals and the coverage of the distribution automation system, and thus ensures the reliability of power supply from the distribution network. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is one of the schematic diagrams of the point-to-point commissioning method for power distribution terminals based on the differences in electrical quantity characteristics according to an embodiment of the present invention;

[0018] Figure 2 This is the second schematic diagram of the point-to-point commissioning method for power distribution terminals based on the differences in electrical quantity characteristics according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the point-to-point commissioning process of a power distribution terminal based on the differences in electrical quantity characteristics, according to an embodiment of the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Given the current low efficiency of point-to-point testing, this invention provides a method for achieving efficient point-to-point joint commissioning of distribution automation terminals based on differential comparison of electrical quantity characteristics. By using a differentiated addition method, efficient and rapid point-to-point joint commissioning testing of distribution automation terminals is completed, ensuring that batch distribution automation terminals can be put into operation quickly. Furthermore, it enables unified point-to-point joint commissioning of remote adjustment, remote measurement, remote signaling, and remote control through a single addition fault simulation test.

[0022] The following is combined with Figures 1 to 3The present invention describes the point-to-point commissioning method and apparatus for distribution terminals based on differences in electrical quantity characteristics. Figure 1 This is one of the flowcharts illustrating the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation according to an embodiment of the present invention, such as... Figure 1 As shown, this invention provides a point-to-point commissioning method for distribution terminals based on differences in electrical quantity characteristics, comprising:

[0023] S1. Send a point-to-point commissioning work order to the commissioning unit so that the commissioning unit can generate a corresponding commissioning plan and feed it back to the distribution automation master station.

[0024] Before S1, a test environment should be set up to ensure that the communication between the distribution automation master station, the distribution automation terminal, and the joint commissioning device is normal and that the physical wiring is correct.

[0025] The distribution automation master station issues point-to-point commissioning work orders to the commissioning devices. The commissioning devices generate relevant commissioning plans based on these work orders and feed these plans back to the master station system for result evaluation during commissioning. An example of a point-to-point commissioning work order is shown in Table 1.

[0026] Table 1

[0027] Serial Number telemetry Remote adjustment remote message remote control 1 Phase A current Fixed value operation Overcurrent protection action Remote control switch on 2 B-phase current Switch closed Remote control switch 3 C-phase current Switching 4 Zero-sequence phase current 5 Phase A voltage 6 Phase B voltage 7 C-phase voltage 8 Zero-sequence voltage 9 P active power 10 Q reactive power 11 S Apparent Power 12 COS power factor 13 F frequency

[0028] S2. After receiving the joint commissioning request sent by the joint commissioning device, perform remote commissioning test on the power distribution terminal. The remote commissioning test includes the verification of the power distribution terminal's set value read and write. The write set value of the remote commissioning test is set according to the commissioning scheme.

[0029] The point-to-point commissioning process consists of three steps. The first step is the remote commissioning of S2, which involves reading and writing the setpoints of the distribution automation terminal for verification. Specifically, this can be done by reading and modifying the setpoints of the distribution automation terminal through the distribution automation master station, and then reading the setpoints again to verify whether the remote commissioning has been completed.

[0030] S3. After the remote adjustment test is qualified, send the telemetry and tele-signaling point-to-point test start information to the joint commissioning device so that the joint commissioning device can perform differentiated addition according to the commissioning plan, and perform differentiated comparison with the commissioning plan based on the response information sent by the power distribution terminal after the differentiated addition, so as to realize the point-to-point verification of telemetry of different phases and tele-signaling of different locations.

[0031] The second step achieves simultaneous telemetry and telesignaling alignment by adding parameters to the distribution automation terminal through a joint commissioning device. This adjustment is differentiated, ensuring that the terminal's protection function outputs differ across phases, and that switch positions respond accordingly. Specifically, differentiated values ​​are applied to the voltage and current channels of different phases, while ensuring that the applied current can drive the distribution automation terminal's overcurrent protection. Related switch positions and protection actions are promptly transmitted to the distribution automation master station system. The master station system then determines the telemetry and telesignal positions transmitted from the terminal, completing the telemetry and telesignal alignment.

[0032] S4. After the telemetry and teleindication point verification is qualified, send the remote control switch closing and opening operation instructions to the power distribution terminal, and judge whether the remote control point is qualified based on the changes in switch position and teleindication position.

[0033] The third step is to complete the remote control pairing. After the protection action, the simulated switch is in the open position. The distribution automation master station system sends remote control switch closing and opening operation commands to the distribution automation terminal in sequence. The distribution automation master station system judges whether the remote control pairing is qualified based on the change of the switch position and remote signal position, and finally completes the remote control pairing.

[0034] In summary, the above method involves the commissioning device simulating a fault using voltage and current signal values ​​and simulated switch positions. The distribution automation terminal performs logical judgment on the fault simulation and sends relevant electrical quantity characteristic signals to the distribution automation master station. The distribution automation master station performs differential comparisons based on the test information fed back by the commissioning device, and judges the correctness of relevant telemetry, remote signaling, and remote adjustment point information according to the differences in quantity values ​​of different types and phases. Simultaneously, after the fault simulation is completed, the distribution automation master station performs remote control reset and switch position restoration operations on the distribution automation terminal, and judges the correctness of the remote control point information through the remote signaling of the corresponding simulated switch position.

[0035] The point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics of the present invention first generates a targeted commissioning plan through information interaction between the master station and the distribution network terminal and the commissioning device, providing data support for subsequent remote commissioning, telemetry, remote signaling and remote control commissioning. Secondly, the reliability of the set values ​​is ensured through the remote commissioning test in the first step of interaction, providing an accuracy guarantee for subsequent telemetry, remote signaling and remote control commissioning. Combined with the differentiated quantity addition method in the second step of telemetry and remote signaling, the point-to-point commissioning test of the distribution automation terminal can be completed efficiently, quickly and accurately, which significantly improves the efficiency of the entire adjustment process. This is conducive to the rapid batch commissioning of distribution automation terminals, increases the online rate of distribution automation system terminals and the coverage of distribution automation system, and thus ensures the reliability of power supply in the distribution network.

[0036] In one embodiment, before sending the point-to-point commissioning work order to the commissioning device, the method further includes: generating a corresponding point-to-point commissioning work order based on the point table files of the distribution automation terminal and the distribution automation master station. Specifically, relevant commissioning task orders and commissioning plans can be generated based on the point table files of the distribution automation terminal and the distribution automation master station.

[0037] In one embodiment, after sending a point-to-point debugging work order to the debugging device, the method further includes: calibrating the received debugging scheme according to the point-to-point debugging work order, and sending the calibration result to the debugging device after the calibration result is qualified, so that the debugging device can initiate a debugging request after receiving the qualified result.

[0038] A pass / fail judgment step can be added. Provided the commissioning work order and commissioning plan are qualified, subsequent point-to-point joint commissioning tests can be initiated. If the joint commissioning device receives a qualified calibration result, it indicates that the commissioning plan is correct and subsequent joint commissioning can proceed smoothly. If a qualified calibration result is not received, the joint commissioning request is not initiated, and the entire commissioning process is temporarily suspended, thus ensuring the accuracy and reliability of the joint commissioning results.

[0039] In one embodiment, after calibrating the received debugging scheme according to the point-to-point debugging work order, the process further includes: if the calibration result is unqualified, repeating the process of eliminating defects in the debugging work order according to the locally stored point table file, sending the eliminated debugging work order to the debugging device, and calibrating the received debugging scheme according to the new debugging work order, until the calibration result is qualified.

[0040] Figure 2 This is the second schematic diagram of the point-to-point commissioning method for distribution terminals based on the differences in electrical quantity characteristics according to an embodiment of the present invention. Figure 2 As shown, if the calibration and debugging work order and debugging plan are unqualified, the checklist file is checked and the defects are eliminated. Then, the joint debugging device automatically generates a debugging plan based on the new debugging work order and feeds it back to the main station. This process is repeated until the calibration and debugging work order and debugging plan are qualified, at which point the subsequent joint debugging steps are performed. Based on the method of this embodiment, the elimination of unqualified debugging plans can be automated, thereby ensuring the accuracy and efficiency of joint debugging.

[0041] In one embodiment, after determining whether the remote control pair is qualified based on changes in switch position and remote signaling position, the method further includes: summarizing the relevant remote adjustment, telemetry, remote signaling, and remote control pair joint debugging test results, generating a test report for archiving. For example... Figure 3 As shown, after the remote control point-to-point test is passed, the distribution automation master station system will summarize the relevant remote adjustment, telemetry, remote signaling and remote control point-to-point joint commissioning test results and generate a test report for archiving. Specifically, the archives can be stored on the master station side and the joint commissioning device side respectively.

[0042] In one embodiment, the differentiated augmentation includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

[0043] Taking the point-to-point commissioning process based on overcurrent protection as an example, the primary transformation ratio of the three-phase voltage and zero-sequence voltage of the distribution automation terminal is 10kV:0.1kV, the current transformation ratio is 600:5, the zero-sequence voltage transformation ratio is 100:1, and the zero-sequence current transformation ratio is 100:1. In the first step of remote commissioning, the secondary protection setting of the three-stage overcurrent protection is set to 6A. In the second step of remote measurement and remote signaling, the commissioning device is set to output voltage and current signals with different amplitudes and phases on different channels. For example, the three-phase voltage outputs are 40V, 50V, and 60V, and the three-phase current outputs are 3A, 5A, and 7A, respectively. The voltage and current are output in positive sequence, with a fixed phase deviation of 30°. The zero-sequence voltage and zero-sequence current outputs are set to 100V and 1A, respectively. The initial value of the analog switch is closed. After the protection action, the output is adjusted to open. Finally, the three-stage overcurrent protection can reliably operate and send relevant remote signaling messages to the distribution automation master station system. Simultaneously, telemetry data such as three-phase voltage, three-phase current, zero-sequence voltage and current, active power, reactive power, power factor, and frequency are transmitted to the master station system at different amplitudes, enabling simultaneous point-to-point commissioning of telemetry and signaling data with a single increase in quantity. Specific values ​​are shown in Table 2.

[0044] Table 2

[0045]

[0046]

[0047] This invention also provides a power distribution automation master station, which can be found in the following details. Figure 3In this part, the distribution automation master station includes: a point-to-point commissioning module, used to send a point-to-point commissioning work order to the joint commissioning device, so that the joint commissioning device can generate a corresponding commissioning plan and feed it back to the distribution automation master station; a master station function module, used by the point-to-point commissioning module to perform remote commissioning tests on the distribution terminal after receiving the joint commissioning request from the joint commissioning device, the remote commissioning test including the verification of the setpoint read and write of the distribution terminal, wherein the write setpoint of the remote commissioning test is set according to the commissioning plan; the point-to-point commissioning module is also used to send telemetry and tele-signaling point-to-point test start information to the joint commissioning device after the remote commissioning test is qualified, so that the joint commissioning device can perform remote commissioning according to the commissioning plan. The differentiated enhancement involves the main station module comparing the response information sent by the distribution terminal after the differentiated enhancement with the debugging scheme to achieve point-to-point verification of telemetry for different phases and tele-signaling for different locations. The main station module is also used to send remote control switch closing and opening operation commands to the distribution terminal after the telemetry and tele-signaling point-to-point verification is successful, and to determine whether the remote control point-to-point verification is successful based on changes in switch position and tele-signaling position. The differentiated enhancement ensures that the terminal protection function's output output has different telemetry amplitudes for different phases and that the switch position changes accordingly. The response information includes protection action information, voltage and current amplitudes, and switch position information.

[0048] In one embodiment, the point-to-point debugging module is further configured to: after sending a point-to-point debugging work order to the joint debugging device, calibrate the received debugging scheme according to the point-to-point debugging work order, and after the calibration result is qualified, send the calibration result to the joint debugging device so that the joint debugging device can initiate a joint debugging request after receiving the qualified result.

[0049] In one embodiment, the differentiated augmentation includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

[0050] The distribution automation master station provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned distribution terminal point-to-point commissioning method based on electrical quantity characteristic differences. For the sake of brevity, any parts not mentioned in the distribution automation master station embodiment can be referred to the corresponding content in the aforementioned distribution terminal point-to-point commissioning method based on electrical quantity characteristic differences.

[0051] This invention also provides a computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, server, app store, etc., which stores a computer program. When the program is executed by a processor, it performs corresponding functions. In this embodiment, the computer-readable storage medium, when executed by a processor, implements the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation described in the above-described method embodiments.

[0052] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0053] The order of the steps in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0054] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics, applied to a distribution automation master station, characterized in that, include: Send a point-to-point commissioning work order to the commissioning unit so that the commissioning unit can generate a corresponding commissioning plan and feed it back to the distribution automation master station; After receiving the joint commissioning request sent by the joint commissioning device, the power distribution terminal is remotely commissioned for testing. The remote commissioning test includes the verification of the power distribution terminal's set value read and write. The write set value of the remote commissioning test is set according to the commissioning scheme. After the remote adjustment test is passed, a telemetry and tele-signaling point-to-point test start information is sent to the joint commissioning device. This allows the joint commissioning device to apply differentiated values ​​to the voltage and current channels of different phases according to the commissioning plan. At the same time, the telemetry of three-phase voltage, three-phase current, zero-sequence voltage and current, active power, reactive power, power factor, and frequency is sent to the master station system at different amplitudes, so that the telemetry and tele-signaling can be simultaneously integrated and commissioned at the point. The response information sent by the distribution terminal after the differentiated adjustment is compared with the commissioning plan to achieve point-to-point verification of telemetry of different phases and tele-signaling of different locations. After the telemetry and teleindication point verification is qualified, the remote control switch closing and opening operation instructions are sent to the power distribution terminal, and the remote control point verification is judged based on the changes in switch position and teleindication position. The differentiated enhancement ensures that the terminal protection function output, the telemetry amplitude of different phases is different, and the switch position changes accordingly. The response information includes protection action information, voltage and current amplitude, and switch position information.

2. The point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics according to claim 1, characterized in that, Before sending the point-to-point commissioning work order to the commissioning unit, the process also includes: Based on the point table files of the distribution automation terminal and the distribution automation master station, a corresponding point-to-point commissioning work order is generated.

3. The point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics according to claim 1, characterized in that, After sending the point-to-point commissioning work order to the commissioning unit, it also includes: The received debugging scheme is calibrated according to the point-to-point joint debugging work order, and after the calibration result is qualified, the calibration result is sent to the joint debugging device so that the joint debugging device can initiate a joint debugging request after receiving the qualified result.

4. The point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation according to claim 3, characterized in that, After calibrating the received debugging scheme according to the point-to-point commissioning work order, the process also includes: If the calibration result is unqualified, the process of eliminating defects in the joint debugging work order according to the locally stored point table file is repeated, and the defect-eliminating joint debugging work order is sent to the joint debugging device. The process of calibrating the received debugging scheme according to the new joint debugging work order continues until the calibration result is qualified.

5. The point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics according to claim 1, characterized in that, After determining whether the remote control connection is qualified based on changes in switch position and remote signaling position, the method further includes: The results of relevant remote adjustment, telemetry, remote signaling, and remote control point-to-point joint debugging tests are summarized and a test report is generated for archiving.

6. The point-to-point commissioning method for distribution terminals based on the differentiation of electrical quantity characteristics according to claim 1, characterized in that, The differentiated input includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

7. A power distribution automation master station, characterized in that, include: The point-to-point commissioning module is used to send point-to-point commissioning work orders to the commissioning equipment, so that the commissioning equipment can generate corresponding commissioning plans and feed them back to the distribution automation master station. The main station function module is used by the point-to-point debugging module to perform remote debugging tests on the power distribution terminal after receiving the joint debugging request sent by the joint debugging device. The remote debugging test includes the verification of the power distribution terminal's set value reading and writing, wherein the write set value of the remote debugging test is set according to the debugging scheme. The point-to-point commissioning module is also used to send telemetry and tele-signaling point-to-point test start information to the joint commissioning device after the remote commissioning test is qualified. This allows the joint commissioning device to apply differentiated values ​​to the voltage and current channels of different phases according to the commissioning plan. At the same time, the telemetry of three-phase voltage, three-phase current, zero-sequence voltage and current, active power, reactive power, power factor, and frequency is sent to the master station system at different amplitudes, so that the telemetry and tele-signaling can be simultaneously commissioned at the point-to-point after a single increase in quantity. The master station function module compares the response information sent by the distribution terminal after the differentiated increase with the commissioning plan to achieve point-to-point verification of telemetry of different phases and tele-signaling of different locations. The main station function module is also used to send remote control switch closing and opening operation commands to the power distribution terminal after the telemetry and teleindication point verification is qualified, and to determine whether the remote control point is qualified based on the changes in switch position and teleindication position. The differentiated enhancement ensures that the terminal protection function output, the telemetry amplitude of different phases is different, and the switch position changes accordingly. The response information includes protection action information, voltage and current amplitude, and switch position information.

8. The power distribution automation master station according to claim 7, characterized in that, The point-to-point debugging module is also used for: After sending a point-to-point commissioning work order to the commissioning device, the received commissioning scheme is calibrated according to the point-to-point commissioning work order. After the calibration result is qualified, the calibration result is sent to the commissioning device so that the commissioning device can initiate a commissioning request after receiving the qualified result.

9. The power distribution automation master station according to claim 7, characterized in that, The differentiated input includes outputting voltages with different amplitudes and phases to different channels, as well as current signals with different amplitudes and phases.

10. A computer storage medium, characterized in that, It contains a computer program that can be executed by a processor, which performs the point-to-point commissioning method for distribution terminals based on electrical quantity characteristic differentiation as described in any one of claims 1-6.

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