Maintenance-free method for secondary equipment on-line monitoring and intelligent diagnosis master station and substation model

Abstract

The invention discloses a secondary equipment on-line monitoring and intelligent diagnosis main station and substation model maintenance-free method, which comprises the following steps: completing substation model configuration according to an upgrade guide tool, generating a whole-station SMCD by one-key application, notifying a main station to carry out model updating, synchronously updating substation model change by the main station, and completing substation model configuration according to the upgrade guide tool. And completing the synchronization from the substation monitoring information model to the master station by using the substation reconstruction and extension SMCD update signal and the information self-description of the SMCD. According to the method, the master station can automatically and synchronously update the substation model change, the consistency of the master station and substation equipment models is realized, the model change of the secondary equipment substation or the model newly accessed to the secondary equipment substation is uploaded to the regulation and control cloud, and the consistency of the OMS-regulation and control cloud-secondary equipment monitoring master station-secondary equipment substation upper and lower models is ensured.

Description

Technical Field

[0001] The present invention relates to the field of relay protection of power system substations, and specifically to a maintenance-free method for online monitoring of secondary equipment and intelligent diagnosis of master-substation models. Background Art

[0002] The construction of relay protection support system is one of the key tasks of relay protection. The quality of relay protection support system operation determines the reliability of protection anomaly and other information. Therefore, strengthening the construction and operation and maintenance of support system is a long-term task of protection. However, during the operation of support systems such as fault recorders and protection information substations, due to the development of expansion projects and the transformation of old relay protection equipment, information model errors and communication anomalies often occur, which affects the user experience of the support system and more seriously affects the rapid judgment of power grid events.

[0003] Therefore, it is urgent to build a maintenance-free function of the relay protection technology support system that does not require a lot of manual participation, and realize the automatic configuration of system functions in scenarios such as the expansion and renovation of old relay protection equipment. At present, various support systems cannot meet the above requirements. Summary of the invention

[0004] The present invention aims to provide a maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation models, where the master station can automatically and synchronously update substation model changes to achieve consistency between master and substation equipment models.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: A maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation models, including master station maintenance-free and substation maintenance-free; Substation maintenance-free Substation model configuration is completed based on the upgrade wizard tool: Import the new system configuration file SCD, identify and display the changed devices, organize the equipment ledger model, enter the physical ID and the equipment factory identification code, import IMCD for the changed devices, import IVLD for the changed devices, import or organize the process layer fiber optic loop for the changed devices, verify the model and apply it with one click to generate the whole station SMCD, and notify the master station to update the model; The maintenance-free master station is based on the online monitoring and analysis of the secondary equipment at the station end. When the substation model changes or a new secondary equipment substation is connected to the secondary equipment monitoring master station, the master station synchronously updates the substation model changes: the model provided by the operation management system (OMS system) builds the substation's information warehouse, and uses the substation's intelligent operation and maintenance online monitoring information description file (SMCD) update signal and the SMCD's own information self-description to complete the synchronization of the substation monitoring information model to the master station.

[0006] Furthermore, each step of the substation upgrade wizard provides model verification results and error prompts.

[0007] Furthermore, a variety of operation modes are provided for the variable device to import or organize the process layer optical fiber loop, and the operation modes include the optical fiber table provided by the label manufacturer, manual connection, and Excel table import mode.

[0008] Furthermore, model verification provides device monitoring information configuration description file (IMCD) / device secondary virtual circuit description file (IVLD) compliance verification, version consistency verification, logical link configuration integrity verification, optical fiber circuit integrity verification, physical ID and factory identification code collection integrity verification.

[0009] Furthermore, the master station receives the primary and secondary models of the substation "data warehouse" from the control cloud, and automatically generates a three-level equipment tree monitoring screen of plant-primary equipment-secondary equipment that is consistent with the site. The master station automatically matches the secondary equipment model based on the physical ID of the IED device of the SMCD obtained from the substation; If the master station obtains more data from the control cloud than from the substation, the master station will not display the redundant information and will view it in the unmatched alarm information; If the data obtained by the master station from the control cloud is less than the information obtained from the substation, the master station displays the unmatched device information in the unmatched device, and the substation information is stored and marked as unmatched.

[0010] Furthermore, when there is a change in the on-site model at the plant end, the main station is notified through an alarm mechanism. The main station provides two working modes for model storage: automatic storage mode and manual confirmation mode; When the master station is in automatic storage mode, when it receives a change in the slave station model, it presets a threshold time. If there is no model update signal within the threshold time, the matching model will be automatically stored in the library. If there is a new model update signal within the threshold time, the model will be stored in the library according to the SMCD file information obtained by the last model update signal. When the master station is in the manual confirmation warehousing mode, when it receives a change in the slave station model, it automatically matches and waits for manual confirmation warehousing. During the waiting period, if there is a new model update signal, the model is entered into the warehouse according to the SMCD file information obtained from the last model update signal before manual confirmation.

[0011] Furthermore, the visual monitoring graphics synchronized between the master and substations include single-line diagrams, and the synchronization of the single-line diagram of the entire station complies with the CIME-G format of the power system graphic description specification, and the master-substation synchronization of the main connection single-line diagram is performed while the master-substation model is synchronously updated.

[0012] Furthermore, the steps of synchronizing the visual monitoring graphics of the master and slave stations include: Each CIM-G file contains a G tag as the root tag, and a Layer tag to define a layer. Each G tag contains one or more Layer tags to represent different layers. Each layer contains one or more primitives, including basic primitives, power grid primitives, and dynamic data primitives. The monitoring system at the master station imports CIM-G files in standard format to restore the same monitoring screen as the plant station. Each monitoring state of the graphic monitoring screen is referenced by the model object reference of the CIM-G object, so that the master station can observe the same monitoring effect as the plant station.

[0013] Furthermore, basic primitives include basic graphic elements and static text elements. CIM-G defines basic graphic elements with line, rect, roundrect, circle, ellipse, polyline, and polygon tags, and defines static text elements with Text tag; The power grid elements include busbar, circuit breaker, line, disconnector, grounding switch, generator, and main transformer. CIM-G defines the power grid elements with labels such as Bus, CBreaker, ACLine, Disconnector, GoundDisconnector, Generator, and Transform. Dynamic data primitives include dynamic text elements and status elements. CIM-G defines dynamic text elements with DText tags and status elements with State and Status tags. Status primitives are used in the monitoring system to display various status quantities.

[0014] Furthermore, the construction of the information warehouse includes: When a new substation is connected, select the OMS substation model that has been issued, enter the key information of the substation, obtain the latest model file from the substation according to the IP address and port, parse and store it in the warehouse, and bind it with the secondary equipment issued by OMS according to the physical ID of the secondary equipment when storing it in the warehouse; The interaction between the master and substation depends on the substation OMSID and the secondary equipment OMSID. When there are substations and secondary equipment that are not associated with OMS in the system, the system will display the alarms that the substation is not associated with the OMS substation and the substation secondary equipment is not associated with the OMS secondary equipment. The advantages of the present invention are: a maintenance-free method for the master-substation model based on the secondary equipment online monitoring and analysis master substation and the secondary equipment online monitoring and intelligent diagnosis substation is proposed, so that when the secondary equipment substation model changes or a new secondary equipment substation is connected to the secondary equipment monitoring master station, the master station can automatically and synchronously update the substation model changes to achieve consistency of the master-substation equipment model, and at the same time, the model changes of the secondary equipment substation or the model of the newly connected secondary equipment substation are sent to the control cloud to ensure that the upper and lower models of OMS-control cloud-secondary equipment monitoring master station-secondary equipment substation are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a business logic diagram of the present invention using the CIM-G file format for the master-substation to transmit the monitoring system monitoring screen and display the monitoring results. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] This embodiment discloses a maintenance-free method for a master-substation model of online monitoring and intelligent diagnosis of secondary equipment, including maintenance-free master station and maintenance-free substation.

[0018] Substation maintenance-free means that when a substation with online monitoring and analysis substations has been put into operation, there is no need for the presence of factory personnel during the later renovation and expansion of the substation. The substation manufacturer provides an upgrade wizard tool, and the operation and maintenance team can complete the substation model configuration according to the upgrade wizard steps. Substation maintenance-free mainly completes the substation model construction with the help of the upgrade wizard provided by the substation manufacturer based on the substation renovation and expansion system configuration SCD and the substation construction process data, and automatically notifies the master station to complete the maintenance-free configuration process.

[0019] Maintenance-free master station means that when the substation is renovated or expanded or a new substation is built, there is basically no need for the manufacturer to perform maintenance operations at the master station when the substation model of the online monitoring and analysis of the secondary equipment at the station end changes or the new secondary equipment substation is connected to the secondary equipment monitoring master station. The master station synchronously updates the substation model changes to achieve consistency between the main and substation equipment models. The maintenance-free master station mainly builds the substation information warehouse based on the model provided by the OMS system, and uses the substation renovation and expansion SMCD update signal and the SMCD's own information self-description to complete the synchronization of the substation monitoring information model to the master station.

[0020] The operations of the substation maintenance-free upgrade wizard include: Import the new system configuration file SCD, identify and display the changed devices, organize the equipment ledger model, enter the physical ID and equipment factory identification code, import IMCD for the changed devices, import IVLD for the changed devices, import or organize the process layer fiber optic loop for the changed devices, verify the model and apply it with one click to generate the entire station SMCD, and notify the master station to update the model.

[0021] The project created by the substation upgrade wizard must have a save function to allow operators to log in to the system to perform upgrade configuration work; the project created by the substation upgrade wizard allows back-stepping operations. When retracting to the previous steps, the content replaced by the subsequent steps should be automatically deleted.

[0022] Each step of the substation upgrade wizard provides model verification results and reminds operators of detailed error prompts.

[0023] The upgrade wizard, "Import or organize the process layer fiber loop for the changed device", should provide multiple operation modes according to the actual construction situation, such as the fiber table provided by the label manufacturer, manual connection, Excel table import mode, etc. In the Excel table import mode, the upgrade wizard should be able to export the initial format of the Excel table for the operator to organize.

[0024] Model verification provides IMCD / IVLD compliance verification, version consistency verification, logical link configuration integrity verification, optical fiber loop integrity verification, and physical ID and factory identification code collection integrity verification.

[0025] Main station maintenance-free mechanism and requirements: The master station receives the primary and secondary models of the substation "data warehouse" from the control cloud, and automatically generates a three-level equipment tree monitoring screen of plant-primary equipment-secondary equipment that is consistent with the on-site equipment. The master station automatically matches the secondary equipment model based on the physical ID of the SMCD IED device obtained from the substation.

[0026] If the master station obtains more data from the control cloud than from the substation (the OMS system is under early maintenance or the OMS system has redundant unretired data), the master station will not display the redundant information, and you can view it in the unmatched alarm information; If the data obtained by the master station from the control cloud is less than the information obtained from the substation (the OMS system is maintained later), the master station will display the unmatched device information in the unmatched devices, and the substation information will be stored and marked as unmatched.

[0027] When there is a change in the on-site model at the plant end, the main station is notified through the alarm mechanism. The main station provides two working modes for model storage: automatic storage mode and manual confirmation mode; When the master station is in automatic storage mode and receives a change in the slave station model, it will wait for 10 minutes and automatically store the matching model after there is no model update signal. If there is a new model update signal within 10 minutes, the model will be stored according to the SMCD file information obtained by the last model update signal. When the master station is in the manual confirmation warehousing mode, when it receives a change in the slave station model, it automatically matches and waits for manual confirmation warehousing. During the waiting period, if there is a new model update signal, the model is entered into the warehouse according to the SMCD file information obtained from the last model update signal before manual confirmation.

[0028] The visual monitoring graphics that need to be synchronized between the master and substations only require the single-line diagram of the entire station, and other interval or device-level visual monitoring screens are not required.

[0029] The synchronization of the single-line diagram between the master and substations should be carried out in accordance with the CIME-G format of the power system graphic description specification (referred to as G language). The master-substation synchronization of the main wiring single-line diagram should be carried out while the master-substation model is being updated synchronously. The master-substation monitoring visualization graphic synchronization technology is as follows: Each CIM-G file contains a G tag as the root tag, and a Layer tag to define the layer. Each G tag can contain multiple Layer tags to represent different layers. Each layer can contain multiple primitives, which can be divided into the following types: 1) Basic primitives, including basic geometric primitives and static text elements; 2) Power grid primitives, including busbars, circuit breakers, lines and other power grid object primitives; 3) Dynamic data primitives, including dynamic text, status, etc.

[0030] CIM-G defines common basic graphic elements with a series of tags such as line, rect, roundrect, circle, ellipse, polyline, and polygon; and defines static text graphic elements with the Text tag.

[0031] CIM-G defines power grid objects with labels such as Bus, CBreaker, ACLine, Disconnector, GoundDisconnector, Generator, and Transform.

[0032] CIM-G defines dynamic text elements with DText tags, which can be used for dynamic data values, such as current and voltage measurement values. CIM-G defines dynamic graphics with tags such as State and Status. In the monitoring system, Status graphics are mainly used to display various status quantities.

[0033] In the graphics elements (DText and Status) that display dynamic data, the keyname attribute is used to define the dynamic data bound to the graphics element. Its value is the IEC-61850 reference address of the bound data. The example is as follows: <status ff="文泉驿正黑" x="0" y="0" keyid="" tfr="rotate(90)" keyname="IB5041ARPIT / QG1XSWI1$ST$Pos$stVal" app="" id="2339" fs="12" devref="#elem_20191203111929249.icn.g:elem_20191203111929249" / > The monitoring system at the master station imports the CIM-G file in standard format to restore the same monitoring screen as the plant station, eliminating the differences in implementation solutions between different manufacturers. Each monitoring state of the graphic monitoring screen is referenced by the model object reference of the CIM-G object, so that the master station can observe the same monitoring effect as the plant station. The business logic of the master-substation transmission of the monitoring system monitoring screen and display of the monitoring results in the CIM-G file format is as follows: Figure 1 shown.

[0034] When a new substation is connected, you can select the OMS substation model that has been issued, enter the substation voltage level, IP address, port number and other key information, and then obtain the latest model file from the substation according to the IP address and port for parsing and storage. When entering the storage, it will be bound to the secondary equipment issued by OMS according to the physical ID of the secondary equipment.

[0035] When the master station receives the configuration change alarm sent by the substation, it updates the substation model. The operator can choose manual or automatic processing. When manually processing, the operator can modify the secondary equipment information specified in the updated model or choose whether to enter the warehouse. Automatic processing means that if the master station does not receive a new configuration change alarm within ten minutes after receiving the alarm and does not manually process it, it will automatically summon the model file for parsing and enter all devices into the warehouse. After manual or automatic processing, after the model is entered into the warehouse, it will be associated with the OMS model according to the physical ID of the secondary equipment, and the latest power grid model will be packaged and uploaded to the control cloud to achieve model synchronization between the master station and the control cloud.

[0036] Since the maintenance-free function is executed automatically in most cases, the model change process and specific change content are not visible. Therefore, each automatic model change will record and save the model used for this update and the model change time, so as to view the specific content of a model change at any time. The main substation interaction depends on the substation OMSID and the secondary equipment OMSID. When there are substations and secondary equipment that are not associated with OMS in the system, it will cause abnormal system data upload. The system will display the alarm that the substation is not associated with the OMS substation and the alarm that the substation secondary equipment is not associated with the OMS secondary equipment, which is used to prompt system maintenance personnel to maintain the relationship between the system and the OMS model.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model, characterized in that: Including maintenance-free master station and maintenance-free substation; The substation maintenance-free model configuration is completed based on the upgrade wizard tool: Import the new system configuration file SCD, identify and display the changed devices, organize the equipment ledger model, enter the physical ID and the equipment factory identification code, import IMCD for the changed devices, import IVLD for the changed devices, import or organize the process layer fiber optic loop for the changed devices, verify the model and apply it with one click to generate the whole station SMCD, and notify the master station to update the model; The maintenance-free master station is based on the online monitoring and analysis of the secondary equipment at the station end. When the substation model changes or a new secondary equipment substation is connected to the secondary equipment monitoring master station, the master station synchronously updates the substation model changes: the model provided by the OMS system builds the substation's information warehouse, and uses the substation expansion and renovation SMCD update signal and the SMCD's own information self-description to complete the synchronization of the substation monitoring information model to the master station.

2. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: Each step of the substation upgrade wizard provides model verification results and error prompts.

3. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: The method provides a plurality of operation modes for introducing or arranging the process layer optical fiber loop of the variable device, and the operation modes include the optical fiber table provided by the label manufacturer, manual connection, and Excel table import mode.

4. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: The model verification provides IMCD / IVLD compliance verification, version consistency verification, logical link configuration integrity verification, optical fiber loop integrity verification, and physical ID and factory identification code collection integrity verification.

5. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: The master station receives the primary and secondary models of the substation "data warehouse" from the control cloud, and automatically generates a three-level equipment tree monitoring screen of plant-primary equipment-secondary equipment that is consistent with the site. The master station automatically matches the secondary equipment model based on the physical ID of the IED device of the SMCD obtained from the substation; If the master station obtains more data from the control cloud than from the substation, the master station will not display the redundant information and will view it in the unmatched alarm information; If the data obtained by the master station from the control cloud is less than the information obtained from the substation, the master station displays the unmatched device information in the unmatched device, and the substation information is stored and marked as unmatched.

6. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: When there is a change in the on-site model at the plant end, the main station is notified through the alarm mechanism. The main station provides two working modes for model storage: automatic storage mode and manual confirmation mode; When the master station is in automatic storage mode, when it receives a change in the slave station model, it presets a threshold time. If there is no model update signal within the threshold time, the matching model will be automatically stored in the library. If there is a new model update signal within the threshold time, the model will be stored in the library according to the SMCD file information obtained by the last model update signal. When the master station is in the manual confirmation warehousing mode, when it receives a change in the slave station model, it automatically matches and waits for manual confirmation warehousing. During the waiting period, if there is a new model update signal, the model is entered into the warehouse according to the SMCD file information obtained from the last model update signal before manual confirmation.

7. According to claim 1, the maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model is characterized in that: The visual monitoring graphics synchronized between the master and substations include single-line diagrams. The synchronization of the whole station single-line diagram follows the CIME-G format of the power system graphic description specification. The master and substation synchronization of the main connection single-line diagram is performed while the master and substation models are synchronously updated.

8. The maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model according to claim 7 is characterized in that: The steps for synchronizing the visual monitoring graphics of the master and slave stations include: Each CIM-G file contains a G tag as the root tag, and a Layer tag to define a layer. Each G tag contains one or more Layer tags to represent different layers. Each layer contains one or more primitives, including basic primitives, power grid primitives, and dynamic data primitives. The monitoring system at the master station imports CIM-G files in standard format to restore the same monitoring screen as the plant station. Each monitoring state of the graphic monitoring screen is referenced by the model object reference of the CIM-G object, so that the master station can observe the same monitoring effect as the plant station.

9. The maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model according to claim 8 is characterized in that: The basic graphic elements include basic graphic elements and static text elements. CIM-G defines basic graphic elements with line, rect, roundrect, circle, ellipse, polyline, and polygon tags, and defines static text elements with Text tags. The power grid elements include busbar, circuit breaker, line, disconnector, grounding switch, generator, and main transformer. CIM-G defines the power grid elements with labels such as Bus, CBreaker, ACLine, Disconnector, GoundDisconnector, Generator, and Transform respectively. The dynamic data primitives include dynamic text elements and status elements. CIM-G defines dynamic text elements with DText tags and defines status elements with State and Status tags. The Status primitive is used in the monitoring system to display various status quantities.

10. The maintenance-free method for online monitoring and intelligent diagnosis of secondary equipment master-substation model according to claim 1 is characterized in that: The construction of the information warehouse includes: When a new substation is connected, select the OMS substation model that has been issued, enter the key information of the substation, obtain the latest model file from the substation according to the IP address and port, parse and store it in the warehouse, and bind it with the secondary equipment issued by OMS according to the physical ID of the secondary equipment when storing it in the warehouse; The interaction between the master and substation depends on the substation OMSID and the secondary equipment OMSID. When there are substations and secondary equipment that are not associated with OMS in the system, the system will display the alarms that the substation is not associated with the OMS substation and the substation secondary equipment is not associated with the OMS secondary equipment.

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