Fault recording master station modeling communication method and system based on IEC61850 standard

Abstract

The invention discloses a fault recording master station modeling communication method and system based on the IEC61850 standard, the fault recording master station adopts the IEC61850 standard to carry out complete modeling on a transformer substation fault recording device, the fault recording master station and the fault recording slave station exchange model information through an icd file, and the fault recording master station and the fault recording slave station carry out fault recording. The fault recording master station automatically generates a database containing primary equipment information and secondary equipment information of a transformer substation and an association relationship between the primary equipment information and the secondary equipment information by using an scd file, the fault recording master station and the substation fault recording device firstly complete communication initialization, and then read a recording file at regular time through a file service of an MMS (Multimedia Message Service); the waveform file analysis module of the master station is responsible for file analysis, waveform analysis and display. According to the invention, the IEC61850 standard is introduced into the fault recording system, and the fault recording main station and the fault recording substation directly communicate with each other by adopting the IEC61850 standard, so that the intermediate data conversion link is reduced, and the operation data of the fault recording device can be timely and conveniently browsed.

Description

Technical Field

[0001] This invention relates to a fault recording master station modeling and communication method and system, and more particularly to a fault recording master station modeling and communication method and system based on the IEC61850 standard. Background Technology

[0002] Traditional fault recording processing involves relaying data through a protection information substation. This substation includes access functionality for the fault recording device and converts the collected fault recording data within the station into I03 data for transmission. However, this method is hampered by issues related to substation equipment and protocols. If the substation malfunctions or communication between the recording device and the substation is disrupted, the recorded data cannot be retrieved from the protection information master station. Therefore, this method has failed to achieve satisfactory results since its inception.

[0003] With the rapid development of smart grid technology, smart substations have been widely adopted. Fault recording devices support data transmission using the IEC 61850 standard. A fault recording master station is built to directly collect information from substation devices. The fault recording master station system is located in the centralized control system or dispatching master station, communicating directly with the fault recording devices at the substations to achieve functions such as setting value viewing, waveform display, and analysis. The system is not plagued by the problems associated with traditional substation access methods for recording equipment. It only requires a reliable network channel at the substation end and the dispatching production department, allocation of a certain number of IP addresses to the substation-level recording devices, and the provision of corresponding hardware and software at the master station end. This allows for timely, convenient, and flexible viewing of the desired equipment operation data. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a fault recording master station modeling and communication method and system based on the IEC61850 standard. By introducing the IEC61850 standard into the fault recording system, the fault recording master and slave stations can communicate directly using the IEC61850 standard, reducing intermediate data conversion steps and facilitating timely browsing of the operating data of the fault recording device.

[0005] Technical solution: The fault recording master station modeling and communication method based on the IEC61850 standard described in this invention includes:

[0006] (1) The fault recording substation provides an ICD model file of a fault recording device that conforms to the IEC61850 standard;

[0007] (2) Configure the IP address of the fault recording device of the substation in the fault recording master station, establish an MMS connection with the device, and summon the icd model file from the device through IEC61850 file service;

[0008] (3) The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file;

[0009] (4) The fault recording master station uses the database configuration tool to import the scd model file and automatically generate the fault recording master station database; it parses the scd file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish the whole station model.

[0010] (5) The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization.

[0011] (6) After the substation fault recording device generates the recording, it notifies the master station that the recording file has been generated through the Report service;

[0012] (7) After receiving the recording completion report from the substation, the master station initiates the file attribute reading service;

[0013] (8) The substation reads the contents of the file through the file reading service and saves them locally;

[0014] (9) The waveform file parsing module of the main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording.

[0015] Furthermore, the IEC61850 compliant ICD model file includes at least common logic devices and waveform recording logic devices, and each logic device includes at least a logic node zero (LLN0) and a physical device information logic node (LPHD); it supports at least the following service models: application association, server model, dataset, report, and file services.

[0016] Furthermore, the fault recording master station database includes substation partitions, IEC61850 model partitions, and measurement point information partitions; the substation partitions include a substation table, a voltage level table, and a bay table; the IEC61850 model partitions include an IED table, a logic device table, a logic node table, a dataset table, a report control block table, and a setting control block table; the measurement point information partitions include a setting table and a fault recording equipment table.

[0017] Furthermore, step (4), establishing the full-site model, specifically includes:

[0018] (41) Import primary equipment information and write the primary model related objects in the scd file into the table corresponding to the substation partition. The primary model objects include the plant, voltage level and bay.

[0019] (42) Import secondary equipment information, write the secondary model related objects in the scd file into the table corresponding to the IEC61860 model partition. The secondary model objects include server, logic device, logic node, dataset, report control block, and setpoint control block. At the same time, according to the IEC dataset model, generate setpoint measurement point objects and write them into the setpoint table, generate fault waveform records and write them into the fault waveform recording device table.

[0020] (43) Based on the logical node signals associated with the primary equipment in the scd file, establish the association relationship between the primary equipment and the fault recording device and logical nodes in the database.

[0021] Furthermore, the communication initialization process in step (5) is as follows:

[0022] (51) The client sends an initialization request to the server, and the server will send a response message after receiving the request.

[0023] (52) The client uses ACSI to read the server's directory service and collects the number of logical devices (LD) and files (FILE) in the server;

[0024] (53) The ACSI Logical Device Catalog Service is used to collect logical nodes (LNs) in each logical device;

[0025] (54) Obtain the object directory and the data type definition of the object, including the type description information of the contained data objects DO, data attributes DA and report control blocks;

[0026] (55) The client reads the current value of the data DO or DA contained in each logical node in the server by calling the ACSI read data value service and writes the value into the fixed value table;

[0027] (56) Use the ACSI logical node directory service to collect data and various control blocks in the logical node, and collect the dataset in the logical node.

[0028] (57) Use the ACSI Read Dataset Catalog Service to obtain the names of each member in the dataset;

[0029] (58) Set the report control block parameters, upload period IntgPd, option field OptFlds and trigger mode TrgOps, enable the report control block, and call the service.

[0030] Furthermore, step (7) reads file attributes including the number of files, filenames, and sizes.

[0031] Furthermore, the method also includes: when the master station terminates the connection with the sub-station, it sends an ACSI release associated Release service request to the sub-station.

[0032] The fault recording master station modeling and communication system based on the IEC61850 standard described in this invention includes:

[0033] File Acquisition Module: The fault recording substation provides fault recording device ICD model files that conform to the IEC61850 standard;

[0034] Master-substation connection module: The fault recording master station configures the IP address of the fault recording device of the substation, establishes an MMS connection with the device, and retrieves the ICD model file from the device through the IEC61850 file service;

[0035] File configuration module: The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file;

[0036] Master station database generation module: The fault recording master station uses a database configuration tool to import the SCD model file and automatically generate the fault recording master station database; it parses the SCD file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish a full station model;

[0037] Communication initialization module: The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization.

[0038] Service notification module: After the substation fault recording device generates a waveform, it notifies the main station that the waveform file has been generated through the Report service;

[0039] File reading module: After receiving the recording completion report from the substation, the master station initiates a file attribute reading service; the substation reads the file content through the file reading service and saves it locally.

[0040] Waveform file parsing module: The main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording.

[0041] A computer device is characterized by comprising one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the programs, when executed by the processors, implement the steps of the fault recording master station modeling and communication method based on the IEC61850 standard.

[0042] A computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of the fault recording master station modeling and communication method based on the IEC61850 standard.

[0043] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: The fault recording master station of this invention adopts the IEC61850 standard to fully model the substation fault recording device. The fault recording master and slave stations exchange model information through ICD files. The fault recording master station automatically generates a database containing information on primary and secondary equipment in the substation and the relationships between them using SCD files. The fault recording master station and slave station fault recording devices first complete communication initialization, and then read the recording files periodically through the MMS file service. The waveform file parsing module of the master station is responsible for file parsing, waveform analysis, and display, reducing communication anomalies and data loss caused by intermediate conversion through the IEC61850 protocol. This enables centralized management of the fault recording device and comprehensive real-time monitoring of its operating status. Through comprehensive and effective analysis, processing, and management of the power grid anomaly or fault information recorded by the fault recorder, the dispatch center can grasp the fault situation in a timely, comprehensive, and accurate manner, thereby quickly handling system faults. This can greatly save manpower and material resources, provide more reliable and valuable data for power system fault analysis and troubleshooting, and improve economic and social benefits. Attached Figure Description

[0044] Figure 1 This is a diagram illustrating the modeling process of the fault recording system based on the IEC61850 standard of this invention.

[0045] Figure 2 This is a diagram of the fault recording master station database structure of the present invention.

[0046] Figure 3 This is a diagram illustrating the communication process between the master station and the substation fault recording device MMS in the fault recording system of the present invention. Detailed Implementation

[0047] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0048] This invention discloses a fault recording master station modeling and communication method based on the IEC61850 standard, comprising:

[0049] The modeling process between the fault recording master station and the fault recording substation based on the IEC61850 standard is as follows: Figure 1 As shown, it includes the following steps:

[0050] (1) The fault recording substation provides an ICD model file of a fault recording device that conforms to the IEC61850 standard;

[0051] The IEC61850 compliant ICD model file includes at least common logic devices and waveform recording logic devices, and each logic device includes at least a logic node zero (LLN0) and a physical device information logic node (LPHD); it supports at least the following service models: application association, server model, dataset, report, and file services.

[0052] (2) Configure the IP address of the fault recording device of the substation in the fault recording master station, establish an MMS connection with the device, and summon the icd model file from the device through IEC61850 file service;

[0053] (3) The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file;

[0054] Specifically, the system configuration tool imports the ICD files of all fault recording devices, completes the system instantiation configuration according to the actual engineering situation, and exports the full-site SCD model file.

[0055] (4) The fault recording master station uses the database configuration tool to import the scd model file and automatically generate the fault recording master station database; it parses the scd file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish the whole station model.

[0056] The fault recording master station database comprises three parts: substation partition, IEC61850 model partition, and measurement point information partition. The database structure is as follows: Figure 2 As shown; the substation partitions include the substation table, voltage level table, and bay table; the IEC61850 model partitions include the IED table, logic device table, logic node table, dataset table, report control block table, and setting control block table; the measurement point information partitions include the setting table and fault recording equipment table.

[0057] The establishment of the full-site model includes:

[0058] (41) Import primary equipment information and write the primary model related objects in the scd file into the table corresponding to the substation partition. The primary model objects include the plant, voltage level and bay.

[0059] (42) Import secondary equipment information, write the secondary model related objects in the scd file into the table corresponding to the IEC61860 model partition. The secondary model objects include server, logic device, logic node, dataset, report control block, and setpoint control block. At the same time, according to the IEC dataset model, generate setpoint measurement point objects and write them into the setpoint table, generate fault waveform records and write them into the fault waveform recording device table.

[0060] (43) Based on the logical node signals associated with the primary equipment in the scd file, establish the association relationship between the primary equipment and the fault recording device and logical nodes in the database.

[0061] The MMS communication process between the master station and the slave station based on the IEC61850 standard is as follows: Figure 3 As shown, the specific steps include:

[0062] (5) The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization.

[0063] The communication initialization includes:

[0064] (51) The client sends an initialization request to the server, and the server will send a response message after receiving the request.

[0065] (52) The client uses ACSI to read the server's directory service and collects the number of logical devices (LD) and files (FILE) in the server;

[0066] (53) The ACSI Logical Device Catalog Service is used to collect logical nodes (LNs) in each logical device;

[0067] (54) Obtain the object directory and the data type definition of the object, including the type description information of the contained data objects DO, data attributes DA and report control blocks;

[0068] (55) The client reads the current value of the data DO or DA contained in each logical node in the server by calling the ACSI read data value service and writes the value into the fixed value table;

[0069] (56) Use the ACSI logical node directory service to collect data and various control blocks in the logical node, and collect the dataset in the logical node.

[0070] (57) Use the ACSI Read Dataset Catalog Service to obtain the names of each member in the dataset;

[0071] (58) Set the report control block parameters, upload period IntgPd, option field OptFlds and trigger mode TrgOps, enable the report control block, and call the service.

[0072] (6) After the substation fault recording device generates the recording, it notifies the master station that the recording file has been generated through the Report service;

[0073] (7) After receiving the recording completion report from the substation, the master station initiates the file attribute reading service;

[0074] (8) The substation reads the contents of the file through the file reading service and saves them locally;

[0075] (9) The waveform file parsing module of the main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording;

[0076] (10) When the master station needs to terminate the connection with the sub-station, it will send an ACSI release associated Release service request to the sub-station.

[0077] This invention also discloses a fault recording master station modeling and communication system based on the IEC61850 standard, comprising:

[0078] File Acquisition Module: The fault recording substation provides fault recording device ICD model files that conform to the IEC61850 standard;

[0079] Master-substation connection module: The fault recording master station configures the IP address of the fault recording device of the substation, establishes an MMS connection with the device, and retrieves the ICD model file from the device through the IEC61850 file service;

[0080] File configuration module: The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file;

[0081] Master station database generation module: The fault recording master station uses a database configuration tool to import the SCD model file and automatically generate the fault recording master station database; it parses the SCD file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish a full station model;

[0082] Communication initialization module: The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization.

[0083] Service notification module: After the substation fault recording device generates a waveform, it notifies the main station that the waveform file has been generated through the Report service;

[0084] File reading module: After receiving the recording completion report from the substation, the master station initiates a file attribute reading service; the substation reads the file content through the file reading service and saves it locally.

[0085] Waveform file parsing module: The main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording.

[0086] This invention introduces the IEC61850 standard into the fault recording system, enabling direct communication between the fault recording master and slave stations using the IEC61850 standard, thereby reducing intermediate data conversion steps.

Claims

1. A fault recording master station modeling and communication method based on the IEC61850 standard, characterized in that, include: (1) The fault recording substation provides an ICD model file of a fault recording device that conforms to the IEC61850 standard; (2) Configure the IP address of the fault recording device of the substation in the fault recording master station, establish an MMS connection with the device, and summon the icd model file from the device through IEC61850 file service; (3) The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file; (4) The fault recording master station uses the database configuration tool to import the scd model file and automatically generate the fault recording master station database; it parses the scd file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish the whole station model. (5) The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization. (6) After the substation fault recording device generates the recording, it notifies the master station that the recording file has been generated through the Report service; (7) After receiving the recording completion report from the substation, the master station initiates the file attribute reading service; (8) The substation reads the contents of the file through the file reading service and saves them locally; (9) The waveform file parsing module of the main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording.

2. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, The IEC61850 compliant ICD model file includes at least common logic devices and waveform recording logic devices, and each logic device includes at least a logic node zero (LLN0) and a physical device information logic node (LPHD); it supports at least the following service models: application association, server model, dataset, report, and file services.

3. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, The fault recording master station database includes substation partitions, IEC61850 model partitions, and measurement point information partitions. The substation partitions include a substation table, a voltage level table, and a bay table. The IEC61850 model partitions include an IED table, a logic device table, a logic node table, a dataset table, a report control block table, and a setting control block table. The measurement point information partitions include a setting table and a fault recording equipment table.

4. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, Step (4) of establishing the full-site model specifically includes: (41) Import primary equipment information and write the primary model related objects in the scd file into the table corresponding to the substation partition. The primary model objects include the plant, voltage level and bay. (42) Import secondary equipment information, write the secondary model related objects in the scd file into the table corresponding to the IEC61860 model partition. The secondary model objects include server, logic device, logic node, dataset, report control block, and setpoint control block. At the same time, according to the IEC dataset model, generate setpoint measurement point objects and write them into the setpoint table, generate fault waveform records and write them into the fault waveform recording device table. (43) Based on the logical node signals associated with the primary equipment in the scd file, establish the association relationship between the primary equipment and the fault recording device and logical nodes in the database.

5. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, The communication initialization process in step (5) is as follows: (51) The client sends an initialization request to the server, and the server will send a response message after receiving the request. (52) The client uses ACSI to read the server's directory service and collects the number of logical devices (LD) and files (FILE) in the server; (53) The ACSI Logical Device Catalog Service is used to collect logical nodes (LNs) in each logical device; (54) Obtain the object directory and the data type definition of the object, including the type description information of the contained data objects DO, data attributes DA and report control blocks; (55) The client reads the current value of the data DO or DA contained in each logical node in the server by calling the ACSI read data value service and writes the value into the fixed value table; (56) Use the ACSI logical node directory service to collect data and various control blocks in the logical node, and collect the dataset in the logical node. (57) Use the ACSI Read Dataset Catalog Service to obtain the names of each member in the dataset; (58) Set the report control block parameters, upload period IntgPd, option field OptFlds and trigger mode TrgOps, enable the report control block, and call the service.

6. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, Step (7) reads file attributes including the number of files, file names, and sizes.

7. The fault recording master station modeling and communication method based on the IEC61850 standard according to claim 1, characterized in that, The method further includes: when the master station terminates the connection with the sub-station, it sends an ACSI release associated Release service request to the sub-station.

8. A fault recording master station modeling and communication system based on the IEC61850 standard, characterized in that, include: File Acquisition Module: The fault recording substation provides fault recording device ICD model files that conform to the IEC61850 standard; Master-substation connection module: The fault recording master station configures the IP address of the fault recording device of the substation, establishes an MMS connection with the device, and retrieves the ICD model file from the device through the IEC61850 file service; File configuration module: The fault recording master station uses the system configuration tool to fully model all fault recording devices and generate a full-station fault recording system configuration SCD model file; Master station database generation module: The fault recording master station uses a database configuration tool to import the SCD model file and automatically generate the fault recording master station database; it parses the SCD file and writes the primary equipment configuration information and secondary equipment configuration information into the master station database to establish a full station model; Communication initialization module: The fault recording master station acts as the client and the substation acts as the server. The fault recording master station and the substation fault recording device perform communication initialization. Service notification module: After the substation fault recording device generates a waveform, it notifies the main station that the waveform file has been generated through the Report service; File reading module: After receiving the recording completion report from the substation, the master station initiates a file attribute reading service; the substation reads the file content through the file reading service and saves it locally. Waveform file parsing module: The main station parses the waveform recording file, displays the waveform, and analyzes the waveform recording.

9. A computer device, characterized in that, It includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the programs, when executed by the processors, implement the steps of a fault recording master station modeling and communication method based on the IEC61850 standard as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the fault recording master station modeling and communication method based on the IEC61850 standard as described in any one of claims 1-7.

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