On-line monitoring system for virtual secondary circuit of transformer substation
By designing an online monitoring system for virtual secondary loops in substations, the problem of difficulty in monitoring and debugging of virtual secondary loops in intelligent substations is solved, and effective verification and status monitoring of virtual secondary loops is realized, and work efficiency and testing quality are improved.
Patent Information
- Application Number
- CN202411606482.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-03-07
AI Technical Summary
Due to its non-visual nature, the virtual secondary circuit of the intelligent substation increases uncontrollability and is difficult to grasp its operating status in a timely manner. The SCD file is large and has poor readability, which makes it difficult to check the relationship between the loop and the virtual terminal.
A virtual secondary loop online monitoring system for substations is designed, including file import module, file analysis module, association matching module, main control module, GOOSE/SV message sending module, GOOSE/SV message receiving module, MMS message receiving module, judgment testing module and test report generation module. Through the coordinated work of these modules, virtual terminal verification and status monitoring of the virtual secondary loop is realized.
By importing SCD files and ICD files, automatically associate GOOSE virtual terminals and MMS data, simulate sending GOOSE displacement information, judge whether the connection of the virtual secondary loop is correct, and generate a test report, effectively monitor and debug the virtual secondary loop of the intelligent substation, and improve work efficiency and test quality.
Smart Images
Figure CN119582440A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of substation virtual secondary circuit monitoring, and in particular relates to an online monitoring system for a substation virtual secondary circuit. Background Art
[0002] A smart substation is a substation that uses advanced, reliable, integrated and environmentally friendly intelligent equipment, with full-station information digitization, communication platform networking, and information sharing standardization as basic requirements. It automatically completes basic functions such as information collection, measurement, control, protection, metering and detection. At the same time, it has advanced functions such as supporting real-time automatic control of the power grid, intelligent regulation, online analysis and decision-making, and collaborative interaction.
[0003] Smart substations replace the hard cable connections of conventional substations with secondary virtual circuits based on networked digital communications. The SV and GOOSE of the station control layer, bay layer and process layer mainly transmit information through digital communication networks. The entire station describes the connection relationship of the secondary circuits through the configuration description SCD file, and reflects the switching quantity of the IED device through the "virtual terminal". This makes the secondary circuits of the smart substation non-visual, increases the uncontrollability of the smart substation, and makes it impossible to grasp its operating status in time. At the same time, since the SCD file is large and has poor readability, it is not easy to check whether the association between the circuit and the "virtual terminal" is correct.
[0004] Therefore, in order to solve the above problems, it is necessary to develop an online monitoring system for substation virtual secondary circuit. Summary of the invention
[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an online monitoring system for a virtual secondary circuit of a substation, which realizes the virtual terminal verification of the virtual secondary circuit of the smart substation, simplifies the complexity of virtual secondary circuit debugging and operation and maintenance, reduces errors and improves work efficiency.
[0006] The object of the present invention is achieved as follows: A substation virtual secondary circuit online monitoring system, comprising a file import module, a file parsing module, an association matching module, a main control module, a GOOSE / SV message sending module, a GOOSE / SV message receiving module, an MMS message receiving module, a first judgment test module, a second judgment test module and a test report generation module; Among them, the file import module includes importing the substation SCD file and the ICD file of the protection or measurement and control device; the file parsing module is used to parse the imported SCD file and ICD file; the association matching module is used to establish a test association template, establish an association relationship between the GOOSE / SV message data and the corresponding data in the MMS report service, and store the association relationship in the form of a test association template; the main control module is used to issue a test command to the GOOSE / SV message sending module based on the parsed SCD file and ICD file and the test association template; the GOOSE / SV message sending module is used to receive the test command issued by the main control module, and simulate the sending of the GOOSE position change information message to the protection or measurement and control device under test; the GOOSE / SV message receiving module is used to receive The GOOSE / SV message sending module simulates sending a GOOSE position change information message to the protection or measurement and control device under test; the MMS message receiving module is used to establish a communication relationship with the protection or measurement and control device under test, and obtain the corresponding MMS message data; the first judgment test module is used to determine whether the MMS message data triggered by the data change is received. If not, it is determined that the loop is abnormal or the signal loop does not exist. If received, it enters the second judgment test module; the second judgment test module is used to determine whether the telemetry and telesignaling data values in the MMS message data are consistent with the SV or GOOSE input values. If they are inconsistent, it is determined that the loop is abnormal or the status value is reversed. If they are consistent, it is determined that the loop is normal; the test report generation module is used to automatically generate a test report according to the test results and a pre-defined report format after completing the test.
[0007] Furthermore, the file parsing module sends the control block information, the virtual secondary circuit topology relationship and the virtual terminal information to be tested according to the SV and GOOSE of the virtual terminal connection information generating device in the file.
[0008] Furthermore, establishing an association relationship in the association matching module specifically includes selecting a certain type of protection device, parsing the ICD file of the protection device, establishing an association relationship between the GOOSE input virtual terminal and the corresponding data in the MMS report service, and obtaining the GOOSE virtual terminal connection information and the GOOSE message content.
[0009] Furthermore, the GOOSE virtual terminal connection information includes a correspondence between the GOOSE input virtual terminal and data in the subscribed GOOSE message.
[0010] Furthermore, the GOOSE message content includes a destination MAC address, APPID, GOID, DATASET, control block parameters and data.
[0011] Furthermore, the association matching module includes an automatic association module and a manual association module; wherein the automatic association module is used for an operation and maintenance station or a newly built station whose SCD correctness has been verified, and the association between the GOOSE virtual terminal and the MMS data report is realized by parsing the device ICD file and the SCD file in the station; the manual association is used for a newly built station whose SCD file has not been fully verified.
[0012] Furthermore, the GOOSE / SV message sending module specifically includes an SV virtual terminal analog output module and a GOOSE virtual terminal analog output module, which is used to receive a test command issued by the main control module and change the output value of the GOOSE / SV virtual terminal of the point-to-point port and networking port of the device according to a preset strategy.
[0013] Furthermore, the SV virtual terminal analog output module is arranged at the merging unit, and the GOOSE virtual terminal analog output module is arranged at the protection measurement and control device and the intelligent terminal.
[0014] Furthermore, the main control module issues GOOSE virtual terminal test commands one by one according to the order of GOOSE virtual terminal connections in the SCD file.
[0015] Due to the adoption of the above technical scheme, the beneficial effects of the present invention are as follows: by importing the SCD file of the on-site substation and the ICD file of the protection device, the GOOSE virtual terminal and the MMS data are automatically associated, and the GOOSE / SV virtual terminal output of the merging unit or the intelligent terminal is simulated by the GOOSE / SV message sending module, and the subscribed GOOSE position change information is sent to the protection or measurement and control device, and the protection or measurement and control interprets the received GOOSE position change signal as the corresponding MMS information data report and sends it up, and the MMS message receiving module receives the station control layer related protection or measurement and control MMS data report message, After analysis, the first judgment test module is used to determine whether the MMS message data triggered by the data change is received, and then the second judgment test module is used to compare it with the simulation information received by the GOOSE / SV message receiving module to determine whether the connection of the virtual secondary circuit is correct, and generate a corresponding test report according to the test requirements, thereby realizing the virtual terminal verification of the virtual secondary circuit, monitoring the smart substation, and timely understanding the operating status of the smart substation, effectively improving the work efficiency and test quality of the relay protection test of the smart substation, shortening the debugging cycle, and optimizing the relay protection of the smart substation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a principle block diagram of the present invention. DETAILED DESCRIPTION
[0017] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0018] like Figure 1 As shown, a substation virtual secondary circuit online monitoring system includes a file import module, a file parsing module, an association matching module, a main control module, a GOOSE / SV message sending module, a GOOSE / SV message receiving module, an MMS message receiving module, a first judgment test module, a second judgment test module and a test report generation module.
[0019] Among them, the file import module includes importing the substation SCD file and the ICD file of the protection or measurement and control device; the file parsing module is used to parse the imported SCD file and ICD file; the file parsing module generates the SV and GOOSE of the device according to the virtual terminal connection information in the file to send control block information, virtual secondary circuit topology relationship and virtual terminal information to be tested.
[0020] Among them, the association matching module is used to establish a test association template, establish an association relationship between the GOOSE / SV message data and the corresponding data in the MMS reporting service, and store the association relationship in the form of a test association template; preferably, the establishment of the association relationship in the association matching module specifically includes selecting a certain type of protection device, parsing the ICD file of the protection device, establishing an association relationship between the GOOSE input virtual terminal and the corresponding data in the MMS reporting service, and obtaining the GOOSE virtual terminal connection information and GOOSE message content; specifically, the GOOSE virtual terminal connection information includes the correspondence between the GOOSE input virtual terminal and the data in the subscribed GOOSE message; the GOOSE message content includes the destination MAC address, APPID, GOID, DATASET, control block parameters and data.
[0021] Preferably, the association matching module includes an automatic association module and a manual association module; wherein the automatic association module is used for an operation and maintenance station or a newly built station whose SCD correctness has been verified, and the association between the GOOSE virtual terminal and the MMS data report is realized by parsing the ICD file of the device and the SCD file in the station; the manual association is used for a newly built station whose SCD file has not been fully verified.
[0022] Among them, the main control module is used to issue a test command to the GOOSE / SV message sending module based on the parsed SCD file and ICD file and the test association template. Preferably, the main control module issues GOOSE virtual terminal test commands one by one according to the order of the GOOSE virtual terminal connections in the SCD file; the GOOSE / SV message sending module is used to receive the test command issued by the main control module, and simulate the sending of GOOSE position change information messages to the protection or measurement and control device under test; preferably, the GOOSE / SV message sending module specifically includes an SV virtual terminal simulation output module and a GOOSE virtual terminal simulation output module, which are used to receive the test command issued by the main control module, and change the output value of the GOOSE / SV virtual terminal of the point-to-point port and the networking port of the device according to a preset strategy; the SV virtual terminal simulation output module is arranged at the merging unit, and the GOOSE virtual terminal simulation output module is arranged at the protection measurement and control device and the intelligent terminal.
[0023] Among them, the GOOSE / SV message receiving module is used to receive the GOOSE / SV message sending module to simulate sending the GOOSE position change information message to the protection or measurement and control device under test; the MMS message receiving module is used to establish a communication relationship with the protection or measurement and control device under test and obtain the corresponding MMS message data.
[0024] Among them, the first judgment test module is used to determine whether the MMS message data triggered by the data change is received. If not, it is judged that the loop is abnormal or the signal loop does not exist. If received, it enters the second judgment test module; the second judgment test module is used to determine whether the telemetry and telesignaling data values in the MMS message data are consistent with the SV or GOOSE input values. If they are inconsistent, it is judged that the loop is abnormal or the status value is reversed. If they are consistent, it is judged that the loop is normal.
[0025] The test report generation module is used to automatically generate a test report according to the test results and a predefined report format after the test is completed.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than 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 the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A substation virtual secondary circuit online monitoring system, characterized by: It includes a file import module, a file parsing module, an association matching module, a main control module, a GOOSE / SV message sending module, a GOOSE / SV message receiving module, an MMS message receiving module, a first judgment test module, a second judgment test module and a test report generation module; Among them, the file import module includes importing the substation SCD file and the ICD file of the protection or measurement and control device; the file parsing module is used to parse the imported SCD file and ICD file; the association matching module is used to establish a test association template, establish an association relationship between the GOOSE / SV message data and the corresponding data in the MMS report service, and store the association relationship in the form of a test association template; the main control module is used to issue a test command to the GOOSE / SV message sending module based on the parsed SCD file and ICD file and the test association template; the GOOSE / SV message sending module is used to receive the test command issued by the main control module, and simulate the sending of the GOOSE position change information message to the protection or measurement and control device under test; the GOOSE / SV message receiving module is used to receive The GOOSE / SV message sending module simulates sending a GOOSE position change information message to the protection or measurement and control device under test; the MMS message receiving module is used to establish a communication relationship with the protection or measurement and control device under test, and obtain the corresponding MMS message data; the first judgment test module is used to determine whether the MMS message data triggered by the data change is received. If not, it is determined that the loop is abnormal or the signal loop does not exist. If received, it enters the second judgment test module; the second judgment test module is used to determine whether the telemetry and telesignaling data values in the MMS message data are consistent with the SV or GOOSE input values. If they are inconsistent, it is determined that the loop is abnormal or the status value is reversed. If they are consistent, it is determined that the loop is normal; the test report generation module is used to automatically generate a test report according to the test results and a pre-defined report format after completing the test.
2. A substation virtual secondary circuit online monitoring system according to claim 1, characterized in that: The file parsing module sends control block information, virtual secondary circuit topology relationship and virtual terminal information to be tested according to SV and GOOSE of the virtual terminal connection information generating device in the file.
3. The substation virtual secondary circuit online monitoring system according to claim 1 is characterized by: Establishing the association relationship in the association matching module specifically includes selecting a certain type of protection device, parsing the ICD file of the protection device, establishing an association relationship between the GOOSE input virtual terminal and the corresponding data in the MMS report service, and obtaining the GOOSE virtual terminal connection information and the GOOSE message content.
4. A substation virtual secondary circuit online monitoring system according to claim 3, characterized in that: The GOOSE virtual terminal connection information includes the corresponding relationship between the GOOSE input virtual terminal and the data in the subscribed GOOSE message.
5. The substation virtual secondary circuit online monitoring system according to claim 3 is characterized by: The GOOSE message content includes the destination MAC address, APPID, GOID, DATASET, control block parameters and data.
6. A substation virtual secondary circuit online monitoring system according to claim 1, characterized in that: The association matching module includes an automatic association module and a manual association module; wherein the automatic association module is used for an operation and maintenance station or a newly built station whose SCD correctness has been verified, and the association between the GOOSE virtual terminal and the MMS data report is realized by parsing the device ICD file and the SCD file in the station; the manual association is used for a newly built station whose SCD file has not been fully verified.
7. A substation virtual secondary circuit online monitoring system according to claim 1, characterized in that: The GOOSE / SV message sending module specifically includes an SV virtual terminal analog output module and a GOOSE virtual terminal analog output module, which is used to receive a test command issued by the main control module and change the output value of the GOOSE / SV virtual terminal of the point-to-point port and the networking port of the device according to a preset strategy.
8. A substation virtual secondary circuit online monitoring system according to claim 7, characterized in that: The SV virtual terminal analog output module is arranged at the merging unit, and the GOOSE virtual terminal analog output module is arranged at the protection measurement and control device and the intelligent terminal.
9. A substation virtual secondary circuit online monitoring system according to claim 1, characterized in that: The main control module sends out GOOSE virtual terminal test commands one by one according to the order of GOOSE virtual terminal connections in the SCD file.