A method and system for point-to-point dynamic acceptance of a control system

Abstract

The present application belongs to the technical field of power system, and particularly relates to a kind of point dynamic acceptance method and system of centralized control system.The method comprises: S1, setting calibration parameters for the remote signal and remote measurement point needing to be checked in target substation;S2, in the calibration period of a measurement point, if the dispatching end receives any signal of the measurement point and meets the following conditions simultaneously, then the measurement point passes the calibration: ① the signal received through all channels is consistent;② the signal change sequence of remote signal measurement point meets the pre-set calibration parameters and the alarm information has been confirmed, or the error between the signal value of remote measurement point and the corresponding expected value is within the error range;③ when signal type verification is enabled, the type of the signal meets the pre-set type of the measurement point;④ when measurement point description verification is enabled, the description information of the measurement point meets the description information in the database.The present application solves the technical problem that the existing technology lacks calibration of measurement points in other dimensions, which leads to easy misjudgment or missed judgment.

Description

Technical Field

[0001] This invention belongs to the field of power system technology, specifically relating to a point-to-point dynamic acceptance method and system for a centralized control system. Background Technology

[0002] The widespread adoption of intelligent systems in newly built substations greatly facilitates data point-to-point debugging at the stations. Traditional data point-to-point work mostly relies on manual verification, primarily involving the main station dispatcher contacting substation staff by phone to verify data line by line using a data point verification device. Manual verification places a heavy workload on power grid personnel, consuming significant manpower and resources, and is prone to errors, while also posing a major safety hazard to the power grid.

[0003] With the rapid development and mature application of smart grid technology, the demand for intelligent upgrades of centralized control systems continues to rise. To effectively improve the efficiency and reliability of substation point-to-point commissioning, the industry urgently needs intelligent commissioning tools. A Chinese invention patent application with publication number CN111030301A and publication date of April 17, 2020, discloses a method for verifying the association of dispatch automation information points. For remote signaling signals, the dispatching terminal presets a set of remote signaling action logic and sends it to the automation terminal. On-site commissioning personnel simulate fault debugging according to real-world conditions. The automation terminal sends the generated remote signaling debugging signal back to the dispatching terminal. If the dispatching terminal determines that the action logic of the remote signaling debugging signal is the same as the preset action logic, it is considered successful. Similarly, for telemetry signals, a set of telemetry value change logic is preset, and then on-site commissioning is used to determine whether the change logic of the actual telemetry value conforms to the preset change logic. However, the above scheme's verification of each measurement point is limited to the measurement point signal itself, lacking verification of measurement points in other dimensions, leading to potential misjudgments or omissions. Subsequent verification of measurement points that fail the initial verification is necessary. Summary of the Invention

[0004] The purpose of this invention is to provide a point-to-point dynamic acceptance method and system for centralized control systems, so as to solve the technical problem in the prior art that the lack of verification of measurement points in other dimensions leads to the easy occurrence of misjudgment or omission.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution for a point-to-point dynamic acceptance method for a centralized control system, comprising: a point-to-point dynamic acceptance method for a centralized control system, the method comprising: S1. Set verification parameters for the remote signaling measurement points and telemetry measurement points in the target substation that need to be verified; the verification parameters for the remote signaling measurement points include the signal change sequence; the verification parameters for the telemetry measurement points include the expected value and error range of the telemetry signal. S2. During the verification period of a certain measuring point, if the dispatch terminal receives any signal from that measuring point that simultaneously meets the following conditions, then the measuring point passes the verification: ① The signal received through all channels is consistent; ② The signal change sequence of the telemetry measuring point conforms to the preset verification parameters and the alarm information has been confirmed, or the error between the signal value of the telemetry measuring point and the corresponding expected value is within the error range; ③ When signal category verification is enabled, the type of the signal conforms to the preset type of the measuring point; ④ When measuring point description verification is enabled, the description information of the measuring point conforms to the description information in the database.

[0006] The beneficial effects of the above technical solution are as follows: The point-to-point acceptance method of the present invention not only considers the data of the remote signaling / telemetry measurement points themselves, but also considers the consistency of multi-channel data, alarm confirmation information of remote signaling signals, etc. It achieves a multi-dimensional verification mechanism (such as signal change sequence, channel data comparison, signal type and descriptive information, etc.) to comprehensively cover all key indicators of remote signaling and telemetry signals, ensuring the reliability of the verification results. This greatly reduces the occurrence of misjudgments and omissions. The present invention solves the technical problem in the prior art of lacking verification of measurement points in other dimensions, which easily leads to misjudgments or omissions.

[0007] Furthermore, the alarm information includes illuminated signage and voice alarm information.

[0008] Furthermore, the method also includes: S3, after the verification is completed, for the measurement points that fail the verification, record the reason why the measurement point fails the verification.

[0009] The present invention also provides a technical solution for a point-to-point dynamic acceptance system for a centralized control system: a point-to-point dynamic acceptance system for a centralized control system, comprising a configuration management module and a measurement point verification module; The configuration management module is used to set verification parameters for the remote signaling measurement points and telemetry measurement points in the target substation that need to be verified. The verification parameters for remote signaling measurement points include the signal change sequence; the verification parameters for telemetry measurement points include the expected value and error range of the telemetry signal. The measurement point verification module is used to verify measurement points: within the verification period of a certain measurement point, if the dispatch terminal receives any signal from that measurement point that meets the following conditions, then the measurement point passes the verification: ① The signal received through all channels is consistent; ② The signal change sequence of the remote signaling measurement point conforms to the preset verification parameters and the alarm information has been confirmed, or the error between the signal value of the remote telemetry measurement point and the corresponding expected value is within the error range; ③ When signal category verification is enabled, the type of the signal conforms to the preset type of the measurement point; ④ When measurement point description verification is enabled, the description information of the measurement point conforms to the description information in the database.

[0010] The beneficial effects of the above technical solution are as follows: When performing point-to-point acceptance, the remote signaling verification module and telemetry verification module of this invention not only consider the data of the remote signaling / telemetry measurement points themselves, but also the consistency of multi-channel data and alarm confirmation information of remote signaling signals. This achieves a multi-dimensional verification mechanism (such as signal change sequences, channel data comparison, signal type and descriptive information, etc.) that comprehensively covers all key indicators of remote signaling and telemetry signals, ensuring the reliability of the verification results. This significantly reduces the occurrence of misjudgments and omissions. This invention solves the technical problem in existing technologies where the lack of verification of measurement points in other dimensions leads to a high likelihood of misjudgments or omissions.

[0011] Furthermore, the alarm information includes illuminated signage and voice alarm information.

[0012] Furthermore, it also includes a verification report generation module; after the verification is completed, the verification report generation module generates a verification report based on the verification results; in the verification report, for the measurement points that fail the verification, the reason for the failure of the measurement point is recorded.

[0013] Furthermore, it also includes a user display module, which is used to display the verification results.

[0014] Furthermore, it also includes a data interaction layer, which is used to obtain all the measurement points of the target substation so that the configuration management module can select the measurement points that need to be verified from all the measurement points of the target substation.

[0015] Furthermore, the data interaction layer obtains all measurement points of the target substation by importing external files or the model database of the target substation.

[0016] Furthermore, it also includes a data storage layer for storing historical verification data. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the system architecture for an implementation of the point-to-point dynamic acceptance system of the centralized control system of the present invention; Figure 2 This is a point-to-point data flow diagram of the point-to-point dynamic acceptance system implementation method of the centralized control system of the present invention; Figure 3 This is a dynamic point-to-point flowchart of the implementation method of the point-to-point dynamic acceptance system of the centralized control system of the present invention. Figure 4 This is a system module interaction timing diagram for an implementation of the point-to-point dynamic acceptance system of the centralized control system of the present invention. Detailed Implementation

[0018] The point-to-point acceptance method of this invention not only considers the data of the remote signaling / telemetry measurement points themselves, but also the consistency of multi-channel data and alarm confirmation information of remote signaling signals. It implements a multi-dimensional verification mechanism (such as signal change sequences and channel data comparison) to comprehensively cover all key indicators of remote signaling and telemetry signals, ensuring the reliability of the verification results. This significantly reduces the occurrence of misjudgments and omissions. This invention solves the technical problem in existing technologies where the lack of verification of measurement points in other dimensions leads to a high likelihood of misjudgments or omissions.

[0019] Implementation method of point-to-point dynamic acceptance system for centralized control system: The point-to-point dynamic acceptance system (hereinafter referred to as the acceptance tool) of the centralized control system in this embodiment is used for automated verification and configuration of remote signaling points and telemetry points in substations. Deployed at the dispatch master station, this acceptance tool achieves efficient acceptance and management of power system signals through functional modules such as dynamic verification, setting strategies, and verification configuration. This invention features technological innovations such as automated verification mechanisms, multi-dimensional verification, flexible configuration, and real-time monitoring and alarms, significantly improving the acceptance efficiency and operational stability of the power system.

[0020] The system architecture of the acceptance tool in this embodiment is as follows: Figure 1 As shown, the permission operation mainly includes login permission checks for the dispatching terminal and checks for the substation (i.e., the plant). Only after both permissions are approved can the point-to-point acceptance between the dispatching terminal and the plant station be carried out.

[0021] Configuration verification includes configuration verification checks and strategy setting checks. The configuration verification check determines the point-to-point configuration of the remote signaling or telemetry measurement points at the substation participating in the verification. Specific configuration items can be differentiated according to the type of measurement point (remote signaling or telemetry) to ensure the verification process is targeted, flexible, and controllable. The configuration verification check can perform fuzzy searches by measurement point name or by interval. Measurement point data from the tested substation can be imported from the substation model data or from an external Excel file into the acceptance tool. The following check items can be set in the remote signaling / telemetry point-to-point configuration: ① Whether to verify signal type: If enabled, the verification process will verify whether the signal type (such as accident, abnormality, displacement, notification, etc.) is consistent; ②Whether to verify description: If enabled, compare the description information of the imported point table data with the description in the database to see if they match; ③ Whether to determine the order of points: If enabled, the points will be checked one by one in the order of selection (that is, the check cycle of each measuring point is set according to the order of selection). ④ Whether to judge channel inconsistency: If enabled, it is used to identify the consistency of data sent from multiple communication channels for the same measurement point, ensuring that channel differences can be identified and recorded during the verification process.

[0022] The verification configuration also supports setting the single-point verification duration (e.g., 60 seconds) and the total verification duration (e.g., 3600 seconds). Through the above configuration, users can flexibly enable or disable various checks according to actual verification needs, achieving fine-grained control over the point-to-point verification process of remote signaling and telemetry, and improving verification efficiency and system compatibility.

[0023] The strategy setting check is used to configure verification strategies according to actual needs, such as the change sequence of remote signaling signals, the expected value of telemetry signals, error range, offset, etc. The business processing module includes point table selection check, point table generation result check, and verification result check. Among them, the point table selection check is used to compare the imported Excel point table file with the corresponding data of the station and bay in the centralized control system, to check whether there is too much or missing remote signaling and telemetry data in the imported point table, and to display the discrepancies in the data with a pop-up table prompt; the point table generation check is used to generate an Excel spreadsheet of the above discrepancies and save it in a specified path; the verification result check is used to obtain the verification result based on the remote signaling / telemetry data uploaded by the substation and the verification strategy; the verification report display and verification report export are used to display and export the verification results, respectively; the dynamic diagram verification result check is used to display the verification result after clicking on the diagram verification in a single bay sub-diagram of the centralized control station, the system automatically generates the point table model file corresponding to the bay sub-diagram, receives the remote signaling or telemetry data sent by the station one by one, and finally displays the verification result. The functional modules include interface display, data comparison, data storage, and data display functions.

[0024] The acceptance tool in this implementation mainly consists of a data interaction layer, a business logic layer, a user interface layer, and a data storage layer.

[0025] The acceptance tool deployed at the dispatch master station communicates with the substation automation system through the data interaction layer to obtain real-time remote signaling and telemetry signal data of the substation. This implementation of the acceptance tool supports multiple communication protocols (such as DL / T634.5104, DL / T 860, etc.) to ensure compatibility with equipment from different manufacturers. The acceptance tool supports importing Excel files and databases (such as substation model data), facilitating batch import of data from checkpoint tables.

[0026] The business logic layer primarily implements the core verification logic for point-to-point acceptance, mainly including a measurement point verification module (comprising a remote signaling verification module and a telemetry verification module) and a configuration management module. The remote signaling verification module is responsible for automatically verifying the remote signaling signals of the substation, including multi-dimensional verification such as signal change sequence judgment, optical character confirmation, and voice confirmation. The telemetry verification module mainly performs accuracy verification on the telemetry signals, ensuring the accuracy of the measurement data through comparative analysis of the transmitted values ​​and expected values, combined with multi-channel data consistency checks. The configuration management module is used to customize verification strategies, including parameters such as remote signaling change sequences (connect-disconnect / disconnect-connect or connect-disconnect-connect / disconnect-connect-disconnect), telemetry error range (e.g., 0~0.1), and offset settings (remote signaling offset, telemetry offset).

[0027] The user interface layer provides an intuitive operating interface, including functional areas such as substation information display, verification point table management, and verification result display. It also includes operation buttons for point selection, verification, and stop, as well as remote signaling and telemetry tabs for easy user switching and operation. The verification results are displayed intuitively in tabular form, including key information such as point number, point table description, transmitted value, expected value, time, channel data comparison, and results, facilitating user analysis and statistics.

[0028] Data storage layer: The built-in data configuration library stores verification configuration information and supports querying and exporting point-to-point data. It employs a structured data storage method to ensure data integrity and security while improving data access efficiency.

[0029] The process of point-to-point acceptance using the automatic acceptance tool of this invention is as follows: Figure 2 and Figure 3 As shown, it includes the following steps: 1. First, the user logs in through the tool interface with a user ID that has the right to operate. After successful verification, the user selects the target substation (such as the 220kV Chaoyang Substation). After successful verification at the substation, the user configures the verification strategy (i.e., verification parameters) and determines the verification type according to actual needs, including parameters such as remote signaling change sequence, telemetry error range, telemetry expected value, and offset setting.

[0030] The verification types include static verification, dynamic verification, graphic verification, and voice verification. Static verification: The imported point table file is only verified against the telemetry and telecontrol data in the database of the central control station. Dynamic verification: After importing the point table file, the central control station needs to communicate with the station personnel about the telemetry and telecontrol upload rules, and verify the data uploaded by the station against the data in the imported point table. Graphic verification: A model file is generated from the single-interval sub-map of the central control center and automatically imported into the acceptance tool. Static verification against data in the central control station database is possible; dynamic verification can also be performed after communicating the verification strategy with the station. Voice verification: The processing flags in the telemetry and telecontrol data are read from the central control center to determine whether voice or alarm bell (light bar or voice alarm) is configured.

[0031] 2. Point selection: Import all remote signaling / telemetry points of the target substation into the acceptance tool using an Excel file or the substation model database. The acceptance personnel select a batch of points that need to be verified from all the points. Specifically, they can perform a fuzzy search by point name or select multiple points by interval.

[0032] 3. Measurement point verification: After the measurement points are selected, the verification of measurement points can begin, which mainly includes remote signaling verification and remote telemetry verification.

[0033] Remote signaling verification: During the current verification period (e.g., 8:00~8:05), the acceptance tool receives signals from each remote signaling measurement point and records the signal change sequence, determining whether the changes conform to the preset change sequence. For example, assuming that the preset change sequence for a certain measurement point is: merge → split or split → merge (it can also be set to merge → split → merge or split → merge → split), as long as the acceptance tool can receive the merge → split or split → merge signal change from that measurement point within the current verification period, the measurement point is considered to have passed this verification.

[0034] In addition to the above verifications, the remote signaling measurement points also need to be verified for the corresponding optical display and voice alarms. After a signal change from merging to splitting or splitting to merging occurs at the measurement point, check whether the processing flags of the measurement point are configured with optical display and voice alarms. If not configured (meaning that the optical display and voice alarm options are not selected in the processing flags of the measurement point. If not selected, no optical display alarm or voice alarm information will be generated when an alarm occurs at the corresponding measurement point), then a prompt will be made in the corresponding verification results; otherwise, the verification will be performed through the verification of the optical display and voice alarm information.

[0035] If the dispatch terminal has multiple channels receiving signals from the same remote signaling measurement point, it is also necessary to determine whether the signals received by these channels are consistent. If they are inconsistent, the verification will fail.

[0036] After the dispatch center confirms the start of the verification process, if the verification period is short, the substation testing personnel and the dispatch center need to cooperate to perform a fault simulation operation at the substation so that the remote signaling signal of the measuring point changes according to the preset change sequence. If the verification period is long, the cooperation of the substation testing personnel is not required. The signal of the measuring point can be changed simply by the self-operation of the substation within the verification period. In this case, as long as the signal change of the remote signaling measuring point can be received within the verification period, the remote signaling measuring point is considered to conform to the preset change sequence (close → open or open → close).

[0037] In addition to the above-mentioned routine verification items, the following checks and verifications are also required depending on whether the corresponding check items are enabled: When signal category verification is enabled, whether the type of the remote signaling signal matches the preset type of the remote signaling measurement point (such as accident, abnormality, displacement, notification, etc.). If they do not match, the verification item fails. When measurement point description verification is enabled, whether the description information of the remote signaling measurement point in the acceptance tool matches the description information of the corresponding remote signaling measurement point in the database. If they do not match, the verification item fails.

[0038] At the end of this verification cycle, for measurement point data that fails verification, the acceptance tool records the reasons for failure in detail (such as unconfirmed light characters, unconfirmed voice, inconsistent channel data, etc.). If the verification is successful, the verification time, channel data comparison results, and other information are recorded.

[0039] Telemetry Verification: During this verification period, the acceptance tool receives telemetry signal transmission values ​​from each telemetry point and calculates the error between the transmitted value and its corresponding expected value, determining whether the error is within the preset error range. Similar to telemetry signal verification, as long as the acceptance tool can receive signal transmission values ​​from the point within the preset error range during this verification period, the point is considered to have passed this verification.

[0040] Similarly, if the dispatching terminal has multiple channels receiving signals from the same telemetry point, it is also necessary to determine whether the telemetry signals received by these channels are consistent. If they are inconsistent, the verification will fail.

[0041] Similar to remote signaling verification, telemetry verification, in addition to the above-mentioned routine verification items, also requires the following checks depending on whether the corresponding check items are enabled: When signal category verification is enabled, whether the type of the telemetry signal matches the preset type of the telemetry point (such as accident, abnormality, displacement, notification, etc.). If they do not match, the verification item fails. When point description verification is enabled, whether the description information of the telemetry point in the acceptance tool matches the description information of the corresponding telemetry point in the database. If they do not match, the verification item fails.

[0042] Unlike remote signaling verification, once the dispatching terminal confirms the start of the verification process, for telemetry points, it is not necessary for substation testing personnel and the dispatching terminal to cooperate in performing simulated operations at the substation to make the transmitted value of the telemetry point close to the expected value. As long as the acceptance tool can receive a transmitted value that is close to the expected value within the allowable error range during this verification cycle, the telemetry point is considered to have passed the verification.

[0043] At the end of this verification cycle, for any measurement point data that fails verification, the acceptance tool records the reasons for failure in detail. For successful verification, information such as the verification time and channel data comparison results is recorded.

[0044] 4. Result Analysis and Display: The verification results are displayed intuitively in tabular form, and different statuses of points are quickly distinguished by color coding (e.g., green for pass, red for fail). Detailed information such as alarm text, visual confirmation, and voice confirmation is provided to help users analyze the reasons for failure. The verification results can be exported to generate Excel reports and RPT files for easy archiving, management, and sharing.

[0045] The module interaction sequence diagram of this system is as follows: Figure 4 As shown, the operator selects the target substation and imports the measurement point table through the user interface module (the user interface module loads the default verification strategy into the configuration management module). Then, the operator configures the remote signaling change sequence, remote signaling point number offset, telemetry increment, telemetry error, and telemetry point number offset through the user interface module, and sets the single-point duration and total duration. After the above configuration parameters are set, the user interface module saves the configuration parameters to the configuration management module. The operator then selects points (remote signaling and telemetry points) through the user interface module, i.e., selects the measurement points to be verified.

[0046] Among them, the offset of remote signaling point number and the offset of telemetry point number refer to the information body address in the imported point table file provided by the station, converted to decimal, which has a discrepancy only with the remote signaling point number in the central control side database. By adding or subtracting the point number offset, the same data point number at the station and the central control side are matched. Single point duration refers to the pairing time of a single measurement point (i.e., the above-mentioned verification cycle). If the set time is exceeded (i.e., the verification cycle corresponding to the measurement point is exceeded), the measurement point has not received the data sent by the station, and the pairing is judged to have timed out. Total duration refers to the total duration of this pairing. If the total duration is exceeded, regardless of whether the pairing is completed, the pairing work is terminated, and the pairing data content is automatically printed and saved.

[0047] After the verification process is initiated, the user interface module (i.e., the user display module) sends a signal acquisition command to the signal acquisition module. The signal acquisition module requests signal data from the substation automation system. The substation automation system returns signal data (including point number / status value / timestamp) to the signal acquisition module based on the request. The signal acquisition module then transmits the raw signal data from the substation automation system to the data preprocessing module. The data preprocessing module stores the raw signal data in the data storage module and preprocesses the raw signal data (including querying the database on the central control center side for data such as the station, bay, and processing flag of the original signal measurement point). The preprocessed data is then transmitted to the verification module. The verification module retrieves the current verification strategy from the configuration management module and queries historical verification configuration data in the data storage module (i.e., data in the verification configuration after the last verification is stored in the historical data table; each new verification data reads the previous verification configuration. If there is no previous configuration data, it is an initialization configuration). Then, it begins the verification process: for telemetry points, ① telemetry signal change sequence matching, ② optical character confirmation check, ③ alarm confirmation check, and ④ multi-channel consistency check; for telemetry points, ① telemetry transmitted values ​​match expected values, and ② multi-channel consistency check. After verification, the verification module transmits the verification results to the user interface module for display to the operator; and sends a report generation command to the report generation module (i.e., the verification report generation module), which saves the generated report file to the file system.

[0048] Implementation method of point-to-point dynamic acceptance method for centralized control system: A point-to-point dynamic acceptance method for a centralized control system, the method comprising: S1. Set verification parameters for the remote signaling measurement points and telemetry measurement points that need to be verified in the target substation; the verification parameters for remote signaling measurement points include the signal change sequence; the verification parameters for telemetry measurement points include the expected value and error range of the telemetry signal.

[0049] Among all the measuring points in the target substation, select the remote signaling and telemetry measuring points that need to be verified, and set the verification parameters. You can perform a fuzzy search for the measuring points to be verified by the measuring point name, or you can select multiple measuring points by interval.

[0050] S2. During this verification cycle, if any signal received by the dispatch terminal from a certain remote signaling measurement point meets the following conditions, then the remote signaling measurement point passes the verification: the signal received through all channels is consistent, the signal change sequence of the measurement point conforms to the preset verification parameters, and the alarm information of the measurement point has been confirmed.

[0051] During this verification period (e.g., three days), the acceptance tool receives signals from each remote signaling point and records the signal change sequence, determining whether the changes conform to the preset change sequence. For example, assuming that the preset change sequence for a certain point is: merge → split or split → merge (or it can be set to merge → split → merge or split → merge → split), as long as the acceptance tool can receive the merge → split or split → merge signal change from that point within this verification period, the point is considered to have passed this verification.

[0052] In addition to the above verification, the remote signaling measurement point also needs to verify the corresponding optical display board and voice alarm. If the measurement point experiences a signal change from closed to open or from open to closed, the optical display board and voice alarm must be confirmed by the substation commissioning personnel.

[0053] If the dispatch terminal has multiple channels receiving signals from the same remote signaling measurement point, it is also necessary to determine whether the signals received by these channels are consistent. If they are inconsistent, the verification will fail.

[0054] After the dispatch center confirms the start of the verification process, if the verification period is short, the substation testing personnel and the dispatch center need to cooperate to perform a fault simulation operation at the substation so that the remote signaling signal of the measuring point changes according to the preset change sequence. If the verification period is short, the substation testing personnel only need to cooperate and rely on the substation's self-operation within the verification period to cause the measuring point signal to change. In this case, as long as the signal change of the remote signaling measuring point can be received within the verification period, the remote signaling measuring point is considered to conform to the preset change sequence (close → open or open → close).

[0055] At the end of this verification cycle, for measurement point data that fails verification, the acceptance tool records the reasons for failure in detail (such as unconfirmed light characters, unconfirmed voice, inconsistent channel data, etc.). If the verification is successful, the verification time, channel data comparison results, and other information are recorded.

[0056] During this verification cycle, if any transmitted value received by the scheduling terminal from a certain telemetry point meets the following conditions, then the telemetry point passes the verification: the transmitted value received through all channels is consistent, and the error between the transmitted value and the corresponding expected value is within the error range.

[0057] During this verification cycle, the acceptance tool receives the telemetry signal transmission values ​​from each telemetry point, calculates the error between the transmitted values ​​and their corresponding expected values, and determines whether the error is within the preset error range. Similar to remote signal verification, as long as the acceptance tool can receive signal changes from the point of connection to separation or separation to connection within this verification cycle, the point is considered to have passed this verification.

[0058] Similarly, if the dispatching terminal has multiple channels receiving signals from the same telemetry point, it is also necessary to determine whether the telemetry signals received by these channels are consistent. If they are inconsistent, the verification will fail.

[0059] Unlike remote signaling verification, after the dispatching end confirms the start of the verification, for telemetry points, substation testing personnel and the dispatching end need to cooperate to perform simulation operations at the substation to make the transmitted value of the telemetry point close to the expected value. As long as the acceptance tool can receive the transmitted value close to the expected value within the error allowable range within this verification cycle, the telemetry point is considered to have passed the verification.

[0060] At the end of this verification cycle, for any measurement point data that fails verification, the acceptance tool records the reasons for failure in detail. For successful verification, information such as the verification time and channel data comparison results is recorded.

[0061] This invention has the following characteristics: 1. Significantly improve work efficiency: (1) The automated verification process replaces manual point-to-point verification, greatly shortening the signal acceptance time of substations, especially in large substations. (2) The dynamic verification function can automatically respond when the signal changes, avoiding manual waiting and repetitive operations, further improving work efficiency.

[0062] 2. Improve verification accuracy: (1) A multi-dimensional verification mechanism (such as signal change sequence, optical character confirmation, voice confirmation, channel data comparison, etc.) fully covers all key indicators of remote signaling and telemetry signals to ensure the reliability of verification results. (2) The system automatically records detailed verification information, reducing errors from manual recording and facilitating subsequent traceability and analysis.

[0063] 3. Enhance standardization: (1) Pre-set verification strategies and parameter configuration functions ensure that all verification work follows unified standards and procedures, eliminating subjective differences in manual operation. (2) Standardized display and report generation of verification results facilitate the comparison and statistics of acceptance results from different substations and different batches.

[0064] 4. Optimize data management: (1) The built-in database realizes centralized storage and management of verification data, and supports the functions of fast data query, export and backup. (2) The accumulation of historical data provides data support for long-term monitoring and trend analysis of substation signals, which helps to discover potential problems in advance.

[0065] 5. Improve system compatibility and scalability: (1) Supports multiple communication protocols and data import methods, compatible with substation automation equipment from different manufacturers, and has strong adaptability. (2) Modular design facilitates function expansion and upgrades, and can continuously optimize system functions as technology develops and user needs change.

[0066] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A point-to-point dynamic acceptance method for a centralized control system, characterized in that, The method includes: S1. Set verification parameters for the remote signaling measurement points and telemetry measurement points in the target substation that need to be verified; the verification parameters for the remote signaling measurement points include the signal change sequence; the verification parameters for the telemetry measurement points include the expected value and error range of the telemetry signal. S2. During the verification period of a certain measuring point, if the dispatch terminal receives any signal from that measuring point that simultaneously meets the following conditions, then the measuring point passes the verification: ① The signal received through all channels is consistent; ② The signal change sequence of the telemetry measuring point conforms to the preset verification parameters and the alarm information has been confirmed, or the error between the signal value of the telemetry measuring point and the corresponding expected value is within the error range; ③ When signal category verification is enabled, the type of the signal conforms to the preset type of the measuring point; ④ When measuring point description verification is enabled, the description information of the measuring point conforms to the description information in the database.

2. The point-to-point dynamic acceptance method for a centralized control system according to claim 1, characterized in that, The alarm information includes illuminated signs and voice alarms.

3. The point-to-point dynamic acceptance method for a centralized control system according to claim 1 or 2, characterized in that, The method also includes: S3, after the verification is completed, for the measurement points that fail the verification, record the reason why the measurement point fails the verification.

4. A point-to-point dynamic acceptance system for a central control system, characterized by Includes a configuration management module and a measurement point verification module; The configuration management module is used to set verification parameters for the remote signaling measurement points and telemetry measurement points in the target substation that need to be verified. The verification parameters for remote signaling measurement points include the signal change sequence; the verification parameters for telemetry measurement points include the expected value and error range of the telemetry signal. The measurement point verification module is used to verify measurement points: within the verification period of a certain measurement point, if the dispatch terminal receives any signal from that measurement point that meets the following conditions, then the measurement point passes the verification: ① The signal received through all channels is consistent; ② The signal change sequence of the remote signaling measurement point conforms to the preset verification parameters and the alarm information has been confirmed, or the error between the signal value of the remote telemetry measurement point and the corresponding expected value is within the error range; ③ When signal category verification is enabled, the type of the signal conforms to the preset type of the measurement point; ④ When measurement point description verification is enabled, the description information of the measurement point conforms to the description information in the database.

5. The point-to-point dynamic acceptance system of a centralized system according to claim 4, wherein, The alarm information includes illuminated signs and voice alarms.

6. The point-to-point dynamic acceptance system of a centralized system according to claim 4 or 5, characterized in that, The system also includes a verification report generation module; after the verification is completed, the verification report generation module generates a verification report based on the verification results; in the verification report, for the measurement points that fail the verification, the reason for the failure of the measurement point is recorded.

7. The point-to-point dynamic acceptance system of a centralized system according to claim 4 or 5, characterized in that, It also includes a user display module, which is used to display the verification results.

8. The point-to-point dynamic acceptance system of a centralized system according to claim 4 or 5, characterized in that, It also includes a data interaction layer, which is used to obtain all the measurement points of the target substation so that the configuration management module can select the measurement points to be verified from all the measurement points of the target substation.

9. The point-to-point dynamic acceptance system of a centralized system according to claim 8, wherein, The data interaction layer obtains all measurement points of the target substation by importing external files or the target substation's model database.

10. The point-to-point dynamic acceptance system of a centralized system according to claim 4 or 5, characterized in that, It also includes a data storage layer for storing historical verification data.

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