Substation primary and secondary equipment automatic association method and device based on predefined information

Abstract

The application discloses a substation primary and secondary equipment automatic association method and device based on predefined information, including a method for constructing an SSD predefined template library, providing a configuration predefined information ICD file for secondary equipment, supporting import of an SCD model to generate an SSD predefined script, and saving to a primary and secondary configuration management file to realize unified management and control of the association relationship with secondary equipment and pre-configuration; a matching rule is constructed to automatically establish a pre-configuration association relationship, realize mapping between predefined primary interval and SSD primary interval, and between predefined primary equipment and SSD primary equipment, and realize automatic generation and automatic update of the primary and secondary equipment association relationship. The technology is used in the substation configuration link, solves the problem of low efficiency and high maintenance difficulty caused by manual operation of association due to complex configuration, guarantees normal operation of advanced functions such as primary equipment analog quantity and switch quantity homologous comparison analysis and primary and secondary equipment state corresponding monitoring, and improves the stability and reliability of the substation.

Description

Technical Field

[0001] This invention belongs to the field of power system substation technology, specifically relating to a method and device for automatic association of primary and secondary equipment in substations based on predefined information. Background Technology

[0002] The IEC 61850 standard is the foundation of substation construction, and the SSD file defined in this standard is an important configuration file within it. It describes the primary system structure of the substation and the correlation information between primary and secondary equipment. This information configuration is also an important component of the SCD model. With deeper research into substation applications, many advanced applications have been developed using this information. For example, the correlation information between primary and secondary equipment can enable source comparison analysis of analog and digital quantities originating from primary equipment, and monitoring the corresponding status of primary and secondary equipment, further improving the level of intelligent application in substations. Therefore, the correlation information between primary and secondary equipment has become an indispensable part of the model configuration.

[0003] However, due to the large number of primary devices in a substation system, each primary device typically needs to be associated with multiple different secondary device logical nodes, and there is no inherent configuration pattern. Therefore, there is a lack of effective configuration methods for the association between primary and secondary devices, and most configurations still rely on manual configuration, consuming a significant amount of manpower and financial resources. Furthermore, any changes to the configuration require manual re-checking and correction, making maintenance difficult. Therefore, there is an urgent need to research a method that can automatically generate the association relationships between primary and secondary devices in a substation, overcoming the drawbacks of manual configuration and thus improving the efficiency and accuracy of configuration. Summary of the Invention

[0004] Purpose of the invention: The present invention provides a method and device for automatic association of primary and secondary equipment in substations based on predefined information, which solves the problems of low efficiency, error-proneness and high maintenance difficulty of existing configuration methods.

[0005] Technical solution: An automatic association method for primary and secondary equipment in substations based on predefined information, including the following steps:

[0006] (1) Configure predefined ICD files: Based on the system specification description (SSD) predefined template library, use the substation configuration description (SCD) configuration tool to configure predefined IED capability description (IED Configuration Description, ICD) files, establish the association between secondary equipment logical nodes and primary equipment, and generate SSD predefined information of predefined ICD files;

[0007] The system specification description is abbreviated as SSD, the intelligent power monitoring device is abbreviated as IED, the IED capability description is abbreviated as ICD, and the substation system configuration description is abbreviated as SCD; the intelligent substation system configuration description (SCD) configuration tool is also known as the intelligent substation SCD configuration tool, or simply tool;

[0008] (2) Initialize the pre-configuration association: The intelligent substation SCD configuration tool configures the SCD model file, imports the SSD predefined information, generates the SSD predefined script and establishes the mapping relationship between the SSD predefined script and the IED (intelligent power monitoring device) node, and initializes the pre-configuration association of the IED in the primary and secondary configuration control files.

[0009] (3) Extract configurable pre-configuration information: Extract configurable pre-configuration information based on the pre-configuration association of IED and the SSD voltage level list in the primary and secondary configuration control files;

[0010] (4) Automatically generate primary interval mapping relationship: In the configurable pre-configuration information, establish the mapping between the predefined primary interval and the SSD primary interval according to the matching rules and update the pre-configuration association relationship in the primary and secondary configuration management files;

[0011] (5) Automatically generate primary device mapping relationship: Based on the mapping between the predefined primary interval and the SSD primary interval, automatically establish the mapping relationship between the predefined primary devices in the predefined primary interval and the SSD primary devices in the SSD primary interval according to the automatic matching rules, and update the pre-configured association relationship in the primary and secondary configuration management files.

[0012] (6) Automatically generate primary and secondary equipment association relationships: Based on the mapping relationship between the predefined primary equipment in the predefined primary interval and the SSD primary equipment in the SSD primary interval, the intelligent substation SCD configuration tool obtains the list of logical nodes of the secondary equipment associated with the predefined primary equipment in the SSD predefined script, establishes the association between the list of logical nodes of the secondary equipment and the SSD primary equipment, and realizes the automatic generation of primary and secondary equipment association relationships.

[0013] (7) Automatically update the primary and secondary equipment association relationship: When an IED node that affects the primary and secondary equipment association relationship is deleted or its configuration is changed, the intelligent substation SCD configuration tool automatically updates the primary and secondary equipment association relationship in the primary and secondary configuration control files and SSD information.

[0014] In step (2), the SSD predefined information is imported to generate the SSD predefined script, which includes two import methods:

[0015] The first method: In the current SCD model, only the SSD predefined information in the ICD file is imported without updating other configurations in the ICD file. The intelligent substation SCD configuration tool first finds the IED node list that matches the ICD file, establishes the mapping relationship between the SSD predefined information and the matching IED node list, and then creates the IED node list SSD predefined script.

[0016] The second method involves simultaneously importing the SSD predefined information and other configurations from the ICD file into the current SCD model. The intelligent substation SCD configuration tool then generates the corresponding IED nodes and SSD predefined scripts and automatically establishes their mapping relationships.

[0017] The pre-configuration associations of the IED in step (2) include the association between the IED, voltage level and SSD predefined script, the association between the predefined primary interval and the predefined primary device, the mapping relationship between the predefined primary interval and the SSD primary interval, and the mapping relationship between the predefined primary device and the SSD primary device.

[0018] Step (3) specifically involves:

[0019] (3.1) Obtain the SSD voltage level list;

[0020] (3.2) Traverse the list of IED nodes in the SCD model and establish an association list between voltage levels and IED nodes in the SSD voltage level list of step (3.1) according to the IED matching rules. The IED matching rules refer to establishing the mapping relationship between IED nodes and voltage levels based on the fourth and fifth characters of the IED name attribute value.

[0021] (3.3) Traverse the association list of voltage level and IED node in step (3.2) and extract the pre-configuration association relationship that matches the SSD voltage level list from the pre-configuration association relationship of IED in the primary and secondary configuration control file.

[0022] In step (4), the matching rule refers to establishing a mapping relationship between the predefined primary interval in the primary and secondary configuration management file and the SSD primary interval under the same voltage level, based on the naming method of the predefined interval.

[0023] The automatic matching rule in step (5) refers to establishing a mapping relationship based on the primary device type. Different interval types have different automatic generation methods; the different automatic generation methods include:

[0024] a. When the predefined interval is the transformer interval, the high-voltage side winding, medium-voltage side winding, and low-voltage side winding are determined according to the voltage level of the SSD transformer winding. Then, based on the predefined transformer winding naming method, the association between the windings is automatically matched and established.

[0025] b. When the predefined interval is other intervals, the predefined primary equipment and SSD primary equipment are automatically associated based on the primary equipment type. On this basis, for the bus interval, the bus disconnect switch is obtained based on the Terminal connection node, and the switch information associated with the bus in other predefined intervals with established associations is updated synchronously.

[0026] Step (6) specifically involves: obtaining and traversing the list of predefined intervals where the mapping relationship of primary devices has changed, searching for the list of predefined primary devices in the current predefined interval, and if the mapping relationship of the predefined primary devices in the list has changed, obtaining the list of secondary device logical nodes associated with the predefined primary devices from the SSD predefined script, deleting the list of associated secondary device logical nodes for the SSD primary devices mapped before the change, and adding the list of secondary device logical nodes for the SSD primary devices mapped after the change, thereby realizing the automatic generation of the primary and secondary device association relationship.

[0027] The automatic association device for primary and secondary equipment in substations based on predefined information includes a module for configuring predefined ICD files, a module for initializing pre-configured association relationships, a module for extracting configurable pre-configured information, a module for automatically generating primary bay mapping relationships, a module for automatically generating primary equipment mapping relationships, a module for automatically generating primary and secondary equipment association relationships, and a module for automatically updating primary and secondary equipment association relationships.

[0028] The configuration predefined ICD file module, based on the SSD predefined template library, configures the predefined ICD file using the intelligent substation SCD configuration tool, establishes the association relationship between the secondary equipment logical nodes and the primary equipment, and generates the SSD predefined information of the predefined ICD file;

[0029] The initialization pre-configuration association module configures the SCD model file using the intelligent substation SCD configuration tool, imports the SSD predefined information from the configuration predefined ICD file module, generates the SSD predefined script, establishes the mapping relationship between the SSD predefined script and the IED node, and initializes the pre-configuration association relationship of the IED in the primary and secondary configuration control files.

[0030] The module for extracting configurable pre-configuration information extracts configurable pre-configuration information based on the pre-configuration association of IEDs and the SSD voltage level list in the primary and secondary configuration management files.

[0031] The automatic generation module for primary interval mapping relationship, in the configurable pre-configuration information, the intelligent substation SCD configuration tool establishes a mapping between the predefined primary interval and the SSD primary interval according to the matching rules and updates the pre-configuration association relationship in the primary and secondary configuration control file;

[0032] The automatic primary equipment mapping relationship generation module, based on the mapping between the predefined primary interval and the SSD primary interval, the intelligent substation SCD configuration tool automatically establishes the mapping relationship between the predefined primary equipment in the predefined primary interval and the SSD primary equipment in the SSD primary interval according to the automatic matching rules, and updates the pre-configuration association relationship in the primary and secondary configuration control files.

[0033] The automatic generation module for primary and secondary equipment association is based on the mapping relationship between predefined primary equipment in a predefined primary interval and SSD primary equipment in a predefined SSD primary interval. The intelligent substation SCD configuration tool obtains the list of logical nodes of secondary equipment associated with predefined primary equipment from the SSD predefined script, establishes the association between the list of logical nodes of secondary equipment and SSD primary equipment, and realizes the automatic generation of primary and secondary equipment association.

[0034] The automatic update module for primary and secondary equipment association relationships automatically updates the primary and secondary equipment association relationships in the primary and secondary configuration management files and SSD information when an IED node that affects the primary and secondary equipment association relationships is deleted or its configuration is changed.

[0035] The initialization pre-configuration association module imports SSD predefined information and generates an SSD predefined script, including two import methods:

[0036] The first method: In the current SCD model, only the SSD predefined information in the ICD file is imported without updating other configurations in the ICD file. The intelligent substation SCD configuration tool first finds the IED node list that matches the ICD file, establishes the mapping relationship between the SSD predefined information and the matching IED node list, and then creates the IED node list SSD predefined script.

[0037] The second method involves simultaneously importing the SSD predefined information and other configurations from the ICD file into the current SCD model. The intelligent substation SCD configuration tool then generates the corresponding IED nodes and SSD predefined scripts and automatically establishes their mapping relationships.

[0038] The pre-configuration association relationship of IED in the initialization pre-configuration association relationship module includes the association relationship between IED, voltage level and SSD predefined script, the association relationship between predefined primary interval and predefined primary device, the mapping relationship between predefined primary interval and SSD primary interval, and the mapping relationship between predefined primary device and SSD primary device.

[0039] The module for extracting configurable pre-configuration information comprises: obtaining an SSD voltage level list; traversing the IED node list in the SCD model, and establishing an association list between voltage levels and IED nodes in the SSD voltage level list according to the IED matching rules, wherein the IED matching rules refer to establishing a mapping relationship between IED nodes and voltage levels based on the fourth and fifth characters of the IED name attribute value; traversing the association list between voltage levels and IED nodes, and extracting pre-configuration association relationships that match the SSD voltage level list from the pre-configuration association relationships of IEDs in the primary and secondary configuration control files.

[0040] The matching rule in the automatic generation of primary interval mapping relationship module refers to establishing a mapping relationship between the predefined primary interval in the primary and secondary configuration management file and the SSD primary interval under the same voltage level, based on the naming method of the predefined interval.

[0041] The automatic matching rule in the automatic primary equipment mapping relationship generation module refers to establishing a mapping relationship based on the primary equipment type (type). Different interval types have different automatic generation methods; the different automatic generation methods include:

[0042] a. When the predefined interval is the transformer interval, the high-voltage side winding, medium-voltage side winding, and low-voltage side winding are determined according to the voltage level of the SSD transformer winding. Then, based on the predefined transformer winding naming method, the association between the windings is automatically matched and established.

[0043] b. When the predefined interval is other intervals, the predefined primary equipment and SSD primary equipment are automatically associated based on the primary equipment type. On this basis, for the bus interval, the bus disconnect switch is obtained based on the Terminal connection node, and the switch information associated with the bus in other predefined intervals with established associations is updated synchronously.

[0044] The module for automatically generating primary and secondary device association relationships works as follows: iterates through a predefined interval list where the primary device mapping relationship has changed, searches for a predefined primary device list in the current predefined interval, and if the predefined primary device mapping relationship in the list has changed, it retrieves a list of secondary device logical nodes associated with the predefined primary device from the SSD predefined script. Simultaneously, it deletes the associated secondary device logical node list from the SSD primary device mapped before the change, and adds the secondary device logical node list to the SSD primary device mapped after the change, thereby realizing the automatic generation of primary and secondary device association relationships.

[0045] Beneficial effects: Compared with the prior art, the present invention

[0046] ① This system achieves, for the first time, ICD pre-configuration based on a template library. It uses an SSD predefined template library to configure SSD predefined information in ICD files. ② A unified management environment for pre-configuration information is built. The tool imports SSD predefined information, generates SSD predefined scripts, and saves them to the primary and secondary configuration management files, enabling automatic initialization and unified management of secondary devices, SSD predefined scripts, and pre-configuration relationships. ③ Rule-based self-matching of relationships is implemented. Matching rules are built to automatically establish pre-configuration relationships, achieving mapping between predefined primary intervals and SSD primary intervals, and between predefined primary devices and SSD primary devices. ④ Self-updating of primary and secondary device relationships is achieved. Based on predefined secondary device logical nodes, the system automatically generates primary and secondary device relationships, automatically updating them when secondary device configurations change.

[0047] Using this invention can effectively improve the efficiency and accuracy of primary and secondary equipment association configuration, reduce the workload of manual matching and maintenance, shorten the engineering configuration time, and ensure the normal operation of advanced functions such as analog and digital quantity comparison analysis of primary equipment and monitoring of the corresponding status of primary and secondary equipment in the substation, thereby improving the intelligent application level of the substation and ensuring the stability and reliability of the overall substation system. Attached Figure Description

[0048] Figure 1 This is a flowchart of the method of the present invention;

[0049] Figure 2 This is a flowchart for automatically establishing the mapping relationship between predefined primary devices and SSD primary devices;

[0050] Figure 3 It is a flowchart that automatically generates the relationship between primary and secondary devices. Detailed Implementation

[0051] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0052] Example 1:

[0053] like Figure 1 As shown, the automatic association method for primary and secondary equipment in a substation based on predefined information includes the following steps:

[0054] Step 1: The tool configures predefined ICD files based on the SSD predefined template library, establishes the association between secondary device logical nodes and primary devices, and generates SSD predefined information in the predefined ICD files.

[0055] The tool provides an SSD predefined template library for application devices, which include various types such as bus protection, circuit breaker protection, and main transformer protection. Each type of device has multiple wiring methods. For example, bus protection has multiple methods such as double bus (double branch) wiring, double bus single branch wiring, 220kV and below single bus wiring, 500kV single bus wiring, and single bus sectional wiring. Therefore, the SSD predefined template library includes SSD predefined templates for different types of devices with different wiring methods.

[0056] The "Technical Specification for Secondary Systems of Independent and Controllable New Generation Substations - Substation Equipment Information Model" (hereinafter referred to as the Specification) has defined the SSD predefined information for typical wiring methods of some equipment, including bay objects, primary equipment, and logical nodes. The following table shows the SSD predefined information for a double busbar (double branch) wiring configuration as an example:

[0057] Table 1. Predefined Dual-Bus (Dual-Split) Wiring SSDs

[0058]

[0059]

[0060] The specifications stipulate naming rules for intermediate objects and primary equipment, which clearly express the role of the equipment, as shown in Table 2:

[0061] Table 2: Naming of Interval Objects and Primary Equipment

[0062]

[0063] The tool is based on and extends the predefined SSD information in the specification to define a predefined SSD template with the same format as the SSD file. In the LNode, the iedName attribute is defined as TEMPLATE and the lnType attribute is defined as empty.

[0064] The tool configures predefined ICD files based on SSD predefined templates. The specific method is as follows:

[0065] (11) Use the tool to open the ICD file;

[0066] (12) Select and import an SSD predefined template of the same device type and wiring method from the SSD predefined template library;

[0067] (13) Traverse the LNode list in the SSD information and determine whether there is a matching LN in the current ICD based on the ldInst, prefix, lnClass, and lnInst attribute values:

[0068] If a matching LN exists, obtain the name attribute value of the current IED and the lnType attribute value of the LN, and update the iedName and lnType attribute values ​​of the LNode respectively;

[0069] If no matching LN exists, delete the LNode.

[0070] (14) Configure other predefined LNodes in the SSD information;

[0071] (15) Export the ICD file.

[0072] Step 2: Configure the SCD model file using the tool, import the SSD predefined information, generate the SSD predefined script, establish the mapping relationship between the SSD predefined script and the IED node, and initialize the preconfiguration association relationship of the IED in the primary and secondary configuration management files. The specific process is as follows:

[0073] (21) Import SSD predefined information and generate SSD predefined scripts. The tool includes two import methods:

[0074] The first method: Import only the SSD predefined information from the ICD file into the current SCD model without updating other configurations in the ICD file; that is, the current SCD model does not integrate IEDs. The tool first finds a list of IED nodes that match the ICD file, establishes a mapping relationship between the SSD predefined information and the matching IED node list, and then creates an IED node list SSD predefined script. The specific steps are as follows:

[0075] Retrieve the IED attributes type, manufacturer, and configVersion from the ICD;

[0076] Traverse SCD to obtain a list of IED nodes with the same attribute values ​​as described above;

[0077] The tool iterates through the IED node list and automatically generates a predefined SSD script. This script contains the predefined SSD information from the current ICD file, updating the values ​​of the predefined LNode attributes `iedName` and `lnType` to match the current IED configuration. The predefined SSD script is named `IEDName_substation_CRC.xml`, where `IEDName` is the IED attribute name, and `CRC` is the checksum of the script file. The tool uses the CRC to determine if the predefined IED information has changed; the specific calculation method is as follows:

[0078] Remove SCL-tagged content and all its Private content;

[0079] Remove all content from the Header element in the SCL file;

[0080] Remove all content from the Header element in the CSD file;

[0081] Remove spaces, newlines, carriage returns, and list characters between remaining content elements and attributes;

[0082] The sub-elements of all extracted elements should be in the same order as those in the SCL file;

[0083] The attributes of all extracted elements are sorted alphabetically from a to b.

[0084] Elements without child elements or assigned values ​​should end with " / >";

[0085] The sequence used to calculate the CRC check code is converted into a UTF-8 sequence, and a four-byte CRC-32 check code is calculated. If the calculated four-byte CRC-32 check code is less than four bytes, the high byte is padded with 0x0.

[0086] The CRC parameters are as follows:

[0087] CRC bit width: 32;

[0088] Item generated: Poly: 04C11DB7;

[0089] Initialization value Init: FFFFFFFF;

[0090] Is the data to be tested reversed? RefIn: True;

[0091] RefOut: True; (Is the calculated value reversed?)

[0092] Output data XorOut: FFFFFFFF;

[0093] The check result for the string "123456789abcdef" is: A2B4FD62.

[0094] The second method involves importing the predefined SSD information and other configurations from the ICD file into the current SCD model. This means integrating the IED into the current SCD model and importing the predefined SSD information. The specific steps are as follows:

[0095] The tool imports the ICD file, names and creates the IED. Naming refers to specifying the value of the IED's name attribute according to the IED name naming convention described in the specification. The IED name adopts a 5-level structure: IED type, affiliated equipment type, voltage level, affiliated equipment number, and IED number, as shown in Table 3.

[0096] Table 3 IED name naming

[0097]

[0098]

[0099] Determine if the ICD file is configured with SSD predefined information. If so, automatically generate an SSD predefined script and establish its association with the IED. The SSD predefined script is named IEDName_substation_CRC.xml.

[0100] (22) Save the mapping relationship between the SSD predefined script and the IED node to the primary and secondary configuration management file and initialize the preconfiguration association relationship of the IED. The primary and secondary configuration management file marks the association relationship between the IED, voltage level and SSD predefined script, the association relationship between the predefined primary interval and the predefined primary device, the mapping relationship between the predefined primary interval and the SSD primary interval, and the mapping relationship between the predefined primary device and the SSD primary device.

[0101] The specific meanings of each field defined in the primary and secondary configuration management files are shown in Table 4:

[0102] Table 4. Meaning of Fields in Primary and Secondary Configuration Management Files

[0103]

[0104]

[0105] Step 3: Extract configurable pre-configuration information based on the pre-configuration relationships of IEDs and the SSD voltage level list in the primary and secondary configuration management files. Since the primary and secondary configuration management files mark the pre-configuration information of all IEDs, to increase configuration efficiency, the pre-configuration information needs to be filtered, configuring only the content that matches the SSD information. The specific process is as follows:

[0106] (31) First, obtain the SSD information voltage level list;

[0107] (32) Traverse the list of IED nodes in the SCD model, and establish an association list between voltage levels and IED nodes in the SSD voltage level list according to the IED matching rules. The IED matching rules refer to establishing the mapping relationship between IED nodes and voltage levels based on the fourth and fifth characters of the IED name attribute value.

[0108] (33) Traverse the association list of voltage level and IED node, and extract the pre-configuration association relationship that matches the SSD voltage level list from the pre-configuration association relationship of the primary and secondary configuration control file IED. This is the configurable pre-configuration information.

[0109] Step 4: Based on the configurable pre-configuration information, establish a mapping relationship between the predefined primary interval and the SSD primary interval according to the matching rules, and update the pre-configuration association relationship in the primary and secondary configuration management files. Since the predefined interval names follow certain naming rules and clearly express role information, a mapping relationship between the predefined primary interval and the SSD primary interval can be established based on the naming convention of the predefined intervals. For example, the naming rule for predefined bus intervals is EBUS_m*, where * represents a specific bus. For instance, EBUS_m1 represents bus interval 1. Therefore, based on the name, a mapping can be established between the predefined interval EBUS_m1 and the bus interval 1 in the SSD information. Simultaneously, the ssdName attribute of the predefined interval EBUS_m1 in the primary and secondary configuration management files is updated to the name of the bus interval 1 in the SSD information.

[0110] Step 5: Based on the mapping between predefined primary intervals and SSD primary intervals, automatically establish the mapping relationship between predefined primary devices within the predefined primary intervals and SSD primary devices within the SSD primary intervals according to the automatic matching rules, and update the preconfigured association relationships in the primary and secondary configuration management files. Substation primary equipment intervals are typically created based on the principle that each interval contains only one main device; therefore, the mapping relationship between predefined primary devices and SSD primary devices can be automatically established based on the primary device type matching method. For example... Figure 2 The diagram shown is a flowchart illustrating the process of automatically establishing a predefined mapping relationship between a primary device and an SSD primary device in an embodiment of the method of the present invention. The specific method is as follows:

[0111] (51) When the predefined interval object is a transformer interval

[0112] A transformer bay typically defines information about a transformer and its windings. A transformer usually consists of two windings (high-voltage side winding and low-voltage side winding) or three windings (high-voltage side winding, medium-voltage side winding, and low-voltage side winding). Therefore, the mapping between primary equipment in a predefined transformer bay is the mapping between predefined windings.

[0113] According to naming requirements, each winding in the predefined transformer bay is defined as PTR_H (high voltage side winding), PTR_M (medium voltage side winding), and PTR_L (low voltage side winding). Once the specific voltage level associated with the winding within the SSD transformer bay is automatically identified, the winding mapping relationship is generated. The specific steps are as follows:

[0114] (511) First, obtain the winding lists of the predefined transformer interval and the SSD transformer interval according to the interval mapping relationship;

[0115] (512) Traverse the winding list of the SSD transformer interval, and based on the voltage levelName attribute of each winding member Terminal, obtain the winding with the highest voltage level and the lowest voltage level, and mark them as SSD high voltage side winding and SSD low voltage side winding respectively. The remaining windings are marked as SSD medium voltage side winding.

[0116] (513) Automatically establish the mapping between PTR_H and SSD high-voltage side winding, PTR_L and SSD low-voltage side winding, and PTR_M and SSD medium-voltage side winding in the predefined transformer interval, and synchronously update the value of the corresponding predefined primary equipment attribute ssdName in the primary and secondary configuration control files.

[0117] (52) When the predefined interval object is another interval

[0118] The mapping relationship between predefined primary devices (excluding predefined isolating switches DIS_m*_dis) and SSD primary devices is automatically established based on the method of matching the primary device type.

[0119] Based on this, when the predefined interval object is a bus interval, it is further necessary to obtain the bus disconnect switch and update its mapping relationship. The specific method is introduced below using EBUS_m1 as an example:

[0120] (521) Based on the connection point information of the SSD bus bay Terminal mapped by EBUS_m1, find the SSD isolation switch configured with the same connection point under the current voltage level.

[0121] (522) In the configurable pre-configuration information, automatically establish the mapping relationship between the predefined disconnect switch (DIS_m1_dis) and the SSD disconnect switch that have established a bay mapping relationship under the current voltage level, and synchronously update the value of the corresponding device attribute ssdName in the primary and secondary configuration management files.

[0122] Step 6: Based on the mapping relationship between predefined primary devices within a predefined primary interval and SSD primary devices within a predefined SSD primary interval, the tool retrieves the list of secondary device logical nodes associated with the predefined primary devices from the SSD predefined script, establishes the association between the secondary device logical node list and the SSD primary devices, and automatically generates the primary and secondary device association relationship. For example... Figure 3 The diagram shown is a flowchart illustrating the automatic generation of primary and secondary device associations in an embodiment of the method of the present invention. The specific steps are as follows:

[0123] (61) Traverse the list of predefined intervals in the configurable preconfiguration information where the mapping relationship between the predefined interval and the SSD primary interval, and between the predefined primary device and the SSD primary device has been changed;

[0124] (62) Obtain the SSD predefined script associated with the current predefined interval;

[0125] (63) Automatically update the primary and secondary device associations of SSD transformers:

[0126] (631) Traverse the predefined transformer list and obtain the change status of its mapping relationship with the SSD transformer. If it has been changed, proceed to the next step; otherwise, proceed to step 634.

[0127] (632) Obtain the list of predefined LNodes associated with predefined transformers from the SSD predefined script;

[0128] (633) Obtain the SSD transformers mapped to the predefined transformers before and after the change. Based on the predefined LNode list, delete and add the associated secondary device logical nodes respectively, and automatically update the primary and secondary configuration management files. The specific method is as follows:

[0129] (6331) Based on the predefined interval and the predefined transformer attribute oldSsdName, obtain the SSD transformer mapped before the change, automatically delete the secondary device logical nodes with the same attributes ldInst, prefix, lnClass, and lnInst as those configured in the predefined LNode list, and update the value of the attribute oldSsdName to ssdName.

[0130] (6332) Based on the predefined interval and the predefined transformer attribute ssdName, obtain the currently mapped SSD transformer, add a secondary device logical node with the same configuration as the predefined LNode list, and update the value of the attribute ssdName to be empty.

[0131] (634) Traverse the predefined winding list and obtain the change status of its mapping relationship with the SSD winding. If it has been changed, update its secondary device logical node configuration and primary and secondary configuration control files. The specific method is the same as 632.

[0132] (64) Automatically update the primary and secondary device associations of other SSD primary devices: Traverse other predefined primary devices except transformers, obtain the change status of their mapping relationship with SSD primary devices, and if they have changed, update their secondary logical node configuration and primary and secondary configuration control files. The specific method is the same as 632.

[0133] Step 7: The primary and secondary configuration management files enable unified management of IED nodes, SSD predefined scripts, and their associations. When an IED node is deleted or its configuration is changed, the tool can automatically update the associations between primary and secondary devices based on the management information. The specific method is as follows:

[0134] (71) When the tool deletes an IED node, it simultaneously deletes the association configuration related to the IED and the SSD predefined script in the primary and secondary configuration management files, and automatically deletes all secondary device logical node configurations of the IED in the SSD information.

[0135] (72) When an IED node changes, the tool automatically updates the primary and secondary configuration control files and the association relationships between primary and secondary devices related to that IED. The processing method varies depending on the content of the change:

[0136] (721) The voltage level of the IED changes due to a change in the IED name:

[0137] Automatically initialize the predefined intervals and predefined primary device mapping relationships of the IED nodes in the primary and secondary configuration management files to be empty, synchronously delete the corresponding secondary device logical node configurations of the relevant SSD primary devices, and automatically update the IED node voltage level information.

[0138] (722) The IED logical node was deleted:

[0139] If the logical node to be deleted exists in the predefined secondary device logical node list of the IED, the relevant node will be automatically deleted. At the same time, according to the mapping relationship, the corresponding secondary device logical node of the SSD primary device will be deleted synchronously. The CRC of the SSD predefined script file will be calculated, and its file name and related configurations of the primary and secondary configuration management files will be automatically updated.

[0140] (723) The naming of the IED logical node has been changed:

[0141] If the naming change logical node exists in the predefined secondary device logical node list of this IED, the SSD predefined script, SSD related configuration and primary and secondary configuration management files will be automatically updated, and the process is the same as 722.

[0142] The above method is based on the SSD predefined template library. By configuring the SSD predefined information in the ICD file, the SSD predefined information is associated with the secondary devices in the SCD model. The SSD predefined scripts and associated information are uniformly managed through the primary and secondary configuration management files. At the same time, the association relationship between the predefined primary interval and the SSD primary interval, and between the predefined primary device and the SSD primary device is automatically established according to the matching rules, thereby realizing the automatic generation of the primary and secondary device association relationship. When the IED configuration changes, the association relationship can be automatically updated.

[0143] Example 2:

[0144] The automatic association device for primary and secondary equipment in substations based on predefined information includes a module for configuring predefined ICD files, a module for initializing pre-configured association relationships, a module for extracting configurable pre-configured information, a module for automatically generating primary bay mapping relationships, a module for automatically generating primary equipment mapping relationships, a module for automatically generating primary and secondary equipment association relationships, and a module for automatically updating primary and secondary equipment association relationships.

[0145] The configuration predefined ICD file module is based on the system specification description SSD predefined template library, uses the intelligent substation whole station system configuration description SCD configuration tool to configure the predefined ICD file, establishes the association relationship between the secondary equipment logical nodes and the primary equipment, and generates the SSD predefined information of the predefined ICD file.

[0146] The initialization pre-configuration association module configures the SCD model file of the whole system configuration description of the intelligent substation, imports the predefined ICD file, generates the SSD predefined script and establishes the mapping relationship between the SSD predefined script and the IED node, and initializes the pre-configuration association relationship of the IED in the primary and secondary configuration control files.

[0147] The module for extracting configurable pre-configuration information extracts configurable pre-configuration information based on the primary and secondary configuration control documents and the SSD voltage level list.

[0148] The automatic generation module for primary interval mapping establishes a mapping between predefined primary intervals and SSD primary intervals in the configurable pre-configuration information according to matching rules and updates the pre-configuration association in the primary and secondary configuration management files. The matching rules refer to establishing a mapping between predefined primary intervals and SSD primary intervals at the same voltage level according to the naming method of predefined intervals.

[0149] The automatic primary equipment mapping relationship generation module, based on the primary interval mapping relationship, the intelligent substation whole station system configuration description SCD configuration tool automatically establishes the mapping between predefined primary equipment in the predefined primary interval and SSD primary equipment in the SSD primary interval according to the automatic matching rules, and updates the pre-configuration association relationship in the primary and secondary configuration management files. The automatic matching rules refer to the mapping relationship being established according to the matching method of primary equipment type. Different interval types have different automatic generation methods.

[0150] The automatic generation module for primary and secondary equipment association is based on the mapping relationship of primary equipment. The intelligent substation system configuration description (SCD) tool obtains the list of predefined secondary equipment logical nodes associated with primary equipment from the predefined script of SSD, and automatically establishes the association between the list of secondary equipment logical nodes and the primary equipment of SSD, thereby realizing the automatic generation of the primary and secondary equipment association relationship.

[0151] When an IED node that affects the primary and secondary equipment association relationship is deleted or its configuration is changed, the automatic update module for primary and secondary equipment association relationships in the intelligent substation system configuration description (SCD) tool automatically updates the primary and secondary equipment association relationships in the primary and secondary configuration management files and SSD information.

[0152] The initialization pre-configuration association module imports a predefined ICD file to generate an SSD predefined script, including two import methods:

[0153] The first method is to import only the SSD predefined information. That is, only the SSD predefined information in the ICD file is imported into the current SCD model without updating other configurations in the ICD file. The SCD configuration tool for the entire intelligent substation system configuration description first finds the IED node list that matches the ICD file, establishes the mapping relationship between the SSD predefined information and the matching IED node list, and then creates the IED node list SSD predefined script.

[0154] The second method involves simultaneously importing predefined SSD information and other configurations to generate IED nodes and predefined SSD scripts, and automatically establishing their mapping relationships.

[0155] The pre-configuration association relationship of IED in the initialization pre-configuration association relationship module includes the association relationship between IED, voltage level and SSD predefined script, the association relationship between predefined primary interval and predefined primary device, the mapping relationship between predefined primary interval and SSD primary interval, and the mapping relationship between predefined primary device and SSD primary device.

[0156] The module for extracting configurable pre-configuration information comprises: obtaining the SSD voltage level list; traversing the IED node list in the SCD model, and establishing an association list between voltage levels and IED nodes in the SSD voltage level list according to the IED matching rules, wherein the IED matching rules refer to establishing the mapping relationship between IED nodes and voltage levels based on the fourth and fifth characters of the IED name attribute value; and extracting configurable pre-configuration information by traversing the mapping relationship between IED nodes and voltage levels and extracting the pre-configuration association relationship that matches the SSD voltage level list from the primary and secondary configuration management files.

[0157] The automatic generation module for primary equipment mapping relationships uses different generation methods for different interval types, including:

[0158] a. When the predefined interval is the transformer interval, the high-voltage side winding, medium-voltage side winding, and low-voltage side winding are determined according to the voltage level of the SSD transformer winding. Then, based on the predefined transformer winding naming method, the association between the windings is automatically matched and established.

[0159] b. When the predefined interval is other intervals, the predefined primary equipment and SSD primary equipment are automatically associated based on the primary equipment type. On this basis, for the bus interval, the bus disconnect switch is obtained based on the Terminal connection node, and the switch information associated with the bus in other predefined intervals with established associations is updated synchronously.

[0160] The module for automatically generating primary and secondary device association relationships works as follows: iterates through a predefined interval list where the primary device mapping relationship has changed, searches for a predefined primary device list in the current predefined interval, and if the predefined primary device mapping relationship in the list has changed, it retrieves a list of secondary device logical nodes associated with the predefined primary device from the SSD predefined script. Simultaneously, it deletes the associated secondary device logical node list from the SSD primary device mapped before the change, and adds the secondary device logical node list to the SSD primary device mapped after the change, thereby realizing the automatic generation of primary and secondary device association relationships.

[0161] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Those skilled in the art should understand that the embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of this application can be implemented using various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0162] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0163] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0164] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0165] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0166] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for automatic association of primary and secondary equipment in substations based on predefined information, characterized in that: Includes the following steps: (1) Based on the SSD predefined template library, the intelligent substation SCD configuration tool configures the predefined ICD file, establishes the association between the secondary equipment logical node and the primary equipment, and generates the SSD predefined information of the predefined ICD file; (2) The SCD configuration tool of the intelligent substation configures the SCD model file, imports the SSD predefined information in step (1), generates the SSD predefined script and establishes the mapping relationship between the SSD predefined script and the IED node, and initializes the preconfiguration association relationship of IED in the primary and secondary configuration control file; the primary and secondary configuration control file marks the association relationship between IED, voltage level and SSD predefined script, the association relationship between predefined primary interval and predefined primary equipment, the mapping relationship between predefined primary interval and SSD primary interval, and the mapping relationship between predefined primary equipment and SSD primary equipment; (3) Extract configurable pre-configuration information based on the pre-configuration association of IEDs and the SSD voltage level list in the primary and secondary configuration control files; (4) In the configurable pre-configuration information, establish a mapping between the predefined primary interval and the SSD primary interval according to the matching rules and update the pre-configuration association in the primary and secondary configuration management files; the matching rules refer to establishing a mapping relationship between the predefined primary interval in the primary and secondary configuration management files and the SSD primary interval under the same voltage level according to the naming method of the predefined interval. (5) Based on the mapping between the predefined primary interval and the SSD primary interval, automatically establish the mapping relationship between the predefined primary devices in the predefined primary interval and the SSD primary devices in the SSD primary interval according to the automatic matching rules, and update the pre-configuration association relationship in the primary and secondary configuration management files; the automatic matching rules refer to the method of establishing the mapping relationship according to the primary device type. (6) Based on the mapping relationship between the predefined primary equipment in the predefined primary interval and the SSD primary equipment in the SSD primary interval, the intelligent substation SCD configuration tool obtains the list of secondary equipment logical nodes associated with the predefined primary equipment in the SSD predefined script, establishes the association between the list of secondary equipment logical nodes and the SSD primary equipment, and realizes the automatic generation of the primary and secondary equipment association relationship. (7) When an IED node that affects the relationship between primary and secondary equipment is deleted or its configuration is changed, the SCD configuration tool of the smart substation automatically updates the relationship between primary and secondary equipment in the primary and secondary configuration control files and SSD information.

2. The automatic association method for primary and secondary equipment in substations based on predefined information according to claim 1, characterized in that, In step (2), the predefined SSD information is imported to generate the predefined SSD script, which includes two import methods: The first method: In the current SCD model, only the SSD predefined information in the ICD file is imported without updating other configurations in the ICD file. The intelligent substation SCD configuration tool first finds the IED node list that matches the ICD file, establishes the mapping relationship between the SSD predefined information and the matching IED node list, and then creates the IED node list SSD predefined script. The second method involves simultaneously importing the SSD predefined information and other configurations from the ICD file into the current SCD model. The intelligent substation SCD configuration tool then generates the corresponding IED nodes and SSD predefined scripts and automatically establishes their mapping relationships.

3. The automatic association method for primary and secondary equipment in substations based on predefined information according to claim 1, characterized in that, The specific steps (3) are as follows: (3.1) Obtain the SSD voltage level list; (3.2) Traverse the list of IED nodes in the SCD model, and establish the association list between voltage level and IED node in the SSD voltage level list in step (3.1) according to the IED matching rules. The IED matching rules refer to establishing the mapping relationship between IED node and voltage level based on the fourth and fifth characters of the IED name attribute value. (3.3) Traverse the association list of voltage level and IED node in step (3.2) and extract the pre-configuration association relationship that matches the SSD voltage level list from the pre-configuration association relationship of IED in the primary and secondary configuration control file.

4. The automatic association method for primary and secondary equipment in substations based on predefined information according to claim 1, characterized in that, In step (5), the automatic matching rules have different automatic generation methods for different interval types; the different automatic generation methods include: a. When the predefined interval is the transformer interval, the high-voltage side winding, medium-voltage side winding, and low-voltage side winding are determined according to the voltage level of the SSD transformer winding. Then, based on the predefined transformer winding naming method, the association between the windings is automatically matched and established. b. When the predefined interval is other intervals, the predefined primary equipment and SSD primary equipment are automatically associated based on the primary equipment type. On this basis, for the bus interval, the bus disconnect switch is obtained based on the Terminal connection node, and the switch information associated with the bus in other predefined intervals with established associations is updated synchronously.

5. The automatic association method for primary and secondary equipment in substations based on predefined information according to claim 1, characterized in that, The specific steps (6) are as follows: obtain the list of predefined intervals where the mapping relationship of primary devices has changed and traverse it to find the list of predefined primary devices in the current predefined interval. If the mapping relationship of the predefined primary devices in the list has changed, obtain the list of secondary device logical nodes associated with the predefined primary devices from the SSD predefined script. At the same time, delete the list of associated secondary device logical nodes of the SSD primary devices mapped before the change, and add the list of secondary device logical nodes of the SSD primary devices mapped after the change, so as to realize the automatic generation of the primary and secondary device association relationship.

6. An automatic association device for primary and secondary equipment in a substation based on predefined information, characterized in that, It includes a module for configuring predefined ICD files, a module for initializing pre-configured associations, a module for extracting configurable pre-configured information, a module for automatically generating primary interval mapping relationships, a module for automatically generating primary device mapping relationships, a module for automatically generating primary and secondary device associations, and a module for automatically updating primary and secondary device associations. The configuration predefined ICD file module, based on the SSD predefined template library, configures the predefined ICD file using the intelligent substation SCD configuration tool, establishes the association relationship between the secondary equipment logical nodes and the primary equipment, and generates the SSD predefined information of the predefined ICD file; The initialization pre-configuration association module configures the SCD model file using the intelligent substation SCD configuration tool, imports the SSD predefined information from the configuration predefined ICD file module, generates the SSD predefined script, establishes the mapping relationship between the SSD predefined script and the IED node, and initializes the pre-configuration association relationship of the IED in the primary and secondary configuration control files; the primary and secondary configuration control files mark the association relationship between the IED, voltage level and SSD predefined script, the association relationship between the predefined primary interval and the predefined primary equipment, the mapping relationship between the predefined primary interval and the SSD primary interval, and the mapping relationship between the predefined primary equipment and the SSD primary equipment; The module for extracting configurable pre-configuration information extracts configurable pre-configuration information based on the pre-configuration association of IEDs and the SSD voltage level list in the primary and secondary configuration management files. The automatic generation module for primary interval mapping relationship, in the configurable pre-configuration information, the intelligent substation SCD configuration tool establishes a mapping between predefined primary intervals and SSD primary intervals according to matching rules and updates the pre-configuration association relationship in the primary and secondary configuration management files; the matching rules refer to establishing a mapping relationship between predefined primary intervals in the primary and secondary configuration management files and SSD primary intervals under the same voltage level according to the naming method of predefined intervals. The automatic primary equipment mapping relationship generation module, based on the mapping between predefined primary intervals and SSD primary intervals, allows the intelligent substation SCD configuration tool to automatically establish mapping relationships between predefined primary equipment within a predefined primary interval and SSD primary equipment within an SSD primary interval according to automatic matching rules, and update the pre-configured association relationships in the primary and secondary configuration management files; the automatic matching rules refer to establishing mapping relationships based on matching the primary equipment type. The automatic generation module for primary and secondary equipment association is based on the mapping relationship between predefined primary equipment in a predefined primary interval and SSD primary equipment in a predefined SSD primary interval. The intelligent substation SCD configuration tool obtains the list of logical nodes of secondary equipment associated with predefined primary equipment from the SSD predefined script, establishes the association between the list of logical nodes of secondary equipment and SSD primary equipment, and realizes the automatic generation of primary and secondary equipment association. The automatic update module for primary and secondary equipment association relationships automatically updates the primary and secondary equipment association relationships in the primary and secondary configuration management files and SSD information when an IED node that affects the primary and secondary equipment association relationships is deleted or its configuration is changed.

7. The automatic association device for primary and secondary equipment in a substation based on predefined information according to claim 6, characterized in that, The initialization pre-configuration association module imports SSD predefined information and generates an SSD predefined script, including two import methods: The first method: In the current SCD model, only the SSD predefined information in the ICD file is imported without updating other configurations in the ICD file. The intelligent substation SCD configuration tool first finds the IED node list that matches the ICD file, establishes the mapping relationship between the SSD predefined information and the matching IED node list, and then creates the IED node list SSD predefined script. The second method involves simultaneously importing the SSD predefined information and other configurations from the ICD file into the current SCD model. The intelligent substation SCD configuration tool then generates the corresponding IED nodes and SSD predefined scripts and automatically establishes their mapping relationships.

8. The automatic association device for primary and secondary equipment in a substation based on predefined information according to claim 6, characterized in that, The module for extracting configurable pre-configuration information comprises: obtaining an SSD voltage level list; traversing the IED node list in the SCD model, and establishing an association list between voltage levels and IED nodes in the SSD voltage level list according to the IED matching rules, wherein the IED matching rules refer to establishing a mapping relationship between IED nodes and voltage levels based on the fourth and fifth characters of the IED name attribute value; traversing the association list between voltage levels and IED nodes, and extracting pre-configuration association relationships that match the SSD voltage level list from the pre-configuration association relationships of IEDs in the primary and secondary configuration control files.

9. The automatic association device for primary and secondary equipment in a substation based on predefined information according to claim 6, characterized in that, The automatic matching rules in the automatic generation module for primary equipment mapping relationships have different automatic generation methods for different interval types; the different automatic generation methods include: a. When the predefined interval is the transformer interval, the high-voltage side winding, medium-voltage side winding, and low-voltage side winding are determined according to the voltage level of the SSD transformer winding. Then, based on the predefined transformer winding naming method, the association between the windings is automatically matched and established. b. When the predefined interval is other intervals, the predefined primary equipment and SSD primary equipment are automatically associated based on the primary equipment type. On this basis, for the bus interval, the bus disconnect switch is obtained based on the Terminal connection node, and the switch information associated with the bus in other predefined intervals with established associations is updated synchronously.

10. The automatic association device for primary and secondary equipment in a substation based on predefined information according to claim 6, characterized in that, The module for automatically generating primary and secondary device association relationships works as follows: iterates through a predefined interval list where the primary device mapping relationship has changed, searches for a predefined primary device list in the current predefined interval, and if the predefined primary device mapping relationship in the list has changed, it retrieves a list of secondary device logical nodes associated with the predefined primary device from the SSD predefined script. Simultaneously, it deletes the associated secondary device logical node list from the SSD primary device mapped before the change, and adds the secondary device logical node list to the SSD primary device mapped after the change, thereby realizing the automatic generation of primary and secondary device association relationships.

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