CN116628937A - Automatic fusion maintenance method, device, equipment and medium for power grid equipment model - Google Patents

Abstract

The invention provides a method, device, equipment and medium for automatic fusion and maintenance of power grid equipment models, including determining the mapping between the main station and the plant station; setting the boundary cutting definition of the plant station model; and designing the interaction service of the master-substation integrated system model Interface; the master station realizes the seamless import of the sub-station model according to the boundary of the sub-station model, combined with the model welding method; the master station realizes the automatic import of the point table according to the model matching mapping; when the data of the model and the point table are consistent, monitor Point automatic information transmission, data verification, and equipment transmission acceptance; generate topological relations, and perform verification and analysis of topological relations. The invention determines the mapping between the main station and the factory station through the IEC61970 standard model, realizes the automatic import and maintenance of the factory station equipment, and improves the model maintenance efficiency of the substation and the centralized control station.

Description

A method, device, equipment and medium for automatic fusion and maintenance of power grid equipment models

technical field

The invention belongs to the field of automatic maintenance of power grid models, and in particular relates to a method, equipment and storage medium for automatic fusion maintenance of power grid equipment models based on power plant equipment boundary cutting.

Background technique

Applying the model splicing and interoperability method based on IEC61970 to the maintenance of the large power grid model not only saves a lot of model maintenance workload, but also provides more accurate and real-time equipment models for applications such as power flow calculation and simulation analysis of the large power grid.

At present, the commissioning of distribution automation terminals based on the IEC61970 model mainly relies on the operation and maintenance personnel of the main station to import the terminals to be debugged into point tables in advance. This traditional import method basically adopts the method of large point tables. When the equipment is changed, it is necessary to manually count all the measurement points of various equipment on site and upload them to the middle station or the main station side to keep the on-site measurement values consistent with the main station. After the import is completed, it needs to be carried out manually or by a debugging device. Subsequent terminal debugging process, which leads to the problem of low efficiency, coupled with the reliance on the cooperation of the operation and maintenance personnel of the main station, may lead to failure to deal with problems in the first place.

Contents of the invention

In view of the above technical problems, the present invention provides a method, device, equipment and medium for automatic maintenance of power grid equipment models to realize automatic import and maintenance of power plant equipment and improve the efficiency of model maintenance of substations and centralized control stations.

The technical solution of the present invention is: a method for automatic fusion connection and maintenance of a power grid equipment model, comprising the following steps:

Step 1: Determine the mapping between the master station and the factory station;

Step 2: Set the boundary cut definition of the station model;

Step 3: Design the service interface of the master-substation integrated system model interaction;

Step 4: According to the boundary of the sub-station model, the master station combines the model welding method to realize the seamless import of the sub-station model;

Step 5: The master station matches the mapping according to the model to realize the automatic import of the point table;

Step 6: When the model and point table data are consistent, carry out automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points;

Step 7: Generate the topological relationship, and perform verification analysis of the topological relationship.

Preferably, in step 1: based on the model of the IEC61970 standard, determine the mapping between the master station and the factory station. When there is a difference between the master station CIM model and the factory station SCL model, the model needs to be adjusted and then mapped;

When the description of the substation structure in SCL and CIM is consistent, the mapping relationship between the substation and the voltage level can be directly established, and the bus interval in the CIM model of the master station is mapped to the interval between the bus section and the SCL model of the plant station;

Analyze the structure of the IED model in the SCL model of the power plant and the logical nodes and public data types of the substation motion communication, establish the mapping relationship between the IED model and the CIM model of the main station, and map the logical nodes to the subclasses of various equipment, analyze The type of logical nodes and the naming rules of data attributes, so as to obtain the mapping relationship between data attributes and measurement values.

Preferably, when there is a difference between the CIM model of the master station and the SCL model of the factory station, the method for adjusting the model includes:

(1) Change the naming method of objects in the CIM model of the master station and the SCL model of the factory station to be consistent;

(2) Change the data types in the CIM model of the master station and the SCL model of the factory station to be consistent;

(3) Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent.

Preferably, in the step 2: based on the fusion conditions of the plant equipment and other models, the boundary cutting definition of the plant model is designed, specifically:

Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines.

Preferably, the boundary table includes the following information: (1) device or line name; (2) subsystem or area to which it belongs; (3) operating status; (4) voltage level or rated voltage; (5) Operating parameters; (6) Connection relationship.

Preferably, in step 3: based on the service call of the master-substation integrated system, the corresponding integrated collaborative services are respectively deployed in the dispatching master station and the sub-stations, and a wide-area power real-time monitoring environment suitable for master-substations is established. Service bus, so as to carry out the integrated service interaction of the main and sub-stations;

Based on the service call of the master-substation integrated system, the model request of the slave station and the model delivery interface of the master station are designed, and the model requested by the slave station and the range and transmission format of the model issued by the master station are specified in the interface.

Preferably, the substation model request interface includes the following information:

(1) Request type: used to distinguish whether the substation requests a real-time model or a planned model;

(2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation;

(3) Request parameters: used to specify the detailed parameters of the substation request model, such as the request timestamp and the requested measurement point.

Preferably, the master station model delivery interface includes the following information:

(1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model;

(2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices, or the entire substation;

(3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, such as the delivery time stamp and the delivery measurement point.

Preferably, in step 4: based on the boundary cut definition of the plant station model described in step 2, find the boundary of the substation model, compare the substation model in the system with the model in the master station, and calculate the master station Model information that needs to be updated;

Specifically: determine whether the update information contains boundary information, if so, update the corresponding boundary information in the sub-station model, otherwise update the master station model information, so as to realize the automatic import of the sub-station model.

Preferably, updating the model information in the master station includes: (1) equipment information such as generators and loads; (2) grid topology information; (3) power system operating status information.

Preferably, in step 5: based on the mapping between the master station and the plant station described in step 1, the master station performs automatic import of the point table according to the model matching mapping, the specific process:

The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation;

If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage.

If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station.

Preferably, in step 6: under the condition that the model and the point table data are consistent, based on the integrated transparent access technology of the master and sub-stations, the transmission of monitoring point information, data verification and acceptance of equipment transmission between the master and sub-stations are carried out;

Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information;

Data verification refers to making abnormal judgments on the transmitted data and performing corresponding operations according to the judgment results;

The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment.

Preferably, between step 6 and step 7: import station control equipment and auxiliary equipment, analyze the characteristics of these equipment, and expand non-electric equipment in the CIM model, so as to realize the access of station control equipment and auxiliary equipment.

Preferably, the specific steps of importing station control equipment and auxiliary equipment include:

(1) Extend the CIM model: add new categories to the CIM model;

(2) Define attributes: For each new category, corresponding attributes need to be defined;

(3) Establish association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship;

(4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model.

Preferably, in the step 7:

The master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing the power grid topology relationship;

The verification analysis of the topological relationship includes the verification of the subordination relationship, the inclusion relationship, and the connection relationship of the electrical equipment;

Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual.

An automatic fusion maintenance device for a power grid equipment model, comprising the following modules:

Mapping module: determine the mapping between the master station and the factory station;

Boundary module: set the boundary cutting definition of the plant model;

Interaction module: design the service interface for the interaction of the master-substation integrated system model;

Substation model import module: the master station realizes the seamless import of substation models according to the boundary of the substation model, combined with the model welding method;

Point table import module: the master station can automatically import the point table according to the model matching mapping;

Acceptance module: Under the condition that the model and point table data are consistent, automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points are carried out;

Topology module: generate topological relations, and perform verification and analysis of topological relations.

Preferably, the mapping module: based on the IEC61970 standard model, determines the mapping between the master station and the factory station. When there is a difference between the master station CIM model and the factory station SCL model, the model needs to be adjusted and then mapped;

When the description of the substation structure in SCL and CIM is consistent, the mapping relationship between the substation and the voltage level can be directly established, and the bus interval in the CIM model of the master station is mapped to the interval between the bus section and the SCL model of the plant station;

Specific method: analyze the structure of the IED model in the SCL model of the power station and the logical nodes and public data types of the substation motion communication, establish the mapping relationship between the IED model and the CIM model of the main station, and map the logical nodes to the substations of various devices. Class, analyze the type of logical nodes and the naming rules of data attributes, so as to obtain the mapping relationship between data attributes and measurement values.

Further preferably, when there is a difference between the CIM model of the main station and the SCL model of the factory station, the method for adjusting the model includes:

(1) Change the naming method of objects in the CIM model of the master station and the SCL model of the factory station to be consistent;

(2) Change the data types in the CIM model of the master station and the SCL model of the factory station to be consistent;

(3) Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent.

Preferably, in the boundary module: based on the fusion conditions of the plant equipment and other models, the boundary cutting definition of the plant model is designed, specifically:

Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines.

Further preferably, the boundary table includes the following information: (1) device or line name; (2) subsystem or area to which it belongs; (3) operating status; (4) voltage level or rated voltage; (5) ) Operating parameters; (6) Connection relationship.

Preferably, in the interaction module: based on the service call of the master-substation integrated system, the corresponding integrated collaborative services are respectively deployed in the dispatching master station and the sub-stations, and a wide-area power real-time monitoring environment suitable for master-substations is established. Service bus, so as to carry out the integrated service interaction of the main and sub-stations;

Based on the service call of the master-substation integrated system, the model request interface of the slave station and the model delivery interface of the master station are designed. The model requested by the slave station and the scope and transmission format of the model issued by the master station are specified in the interface.

Further preferably, the substation model request interface includes the following information:

(1) Request type: used to distinguish whether the substation requests a real-time model or a planned model;

(2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation;

(3) Request parameters: used to specify the detailed parameters of the substation request model, such as the request timestamp and the requested measurement point;

The master station model delivery interface includes the following information:

(1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model;

(2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices or the entire substation;

(3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, such as the delivery time stamp and the delivery measurement point.

Preferably, the substation model is imported into the module: based on the boundary cutting definition of the plant station model described in the boundary module, the boundary of the substation model is found, and the substation model in the system is compared with the model in the main station, Calculate the model information that the master station needs to update;

Specifically: determine whether the update information contains boundary information, if so, update the corresponding boundary information in the sub-station model, otherwise update the master station model information, so as to realize the automatic import of the sub-station model.

Further preferably, updating the model information in the master station includes: (1) equipment information such as generators and loads; (2) grid topology information; (3) power system operating status information.

Preferably, in the described point table import module: based on the mapping between the master station and the factory station in the mapping module, the master station performs automatic import of the point table according to the model matching mapping, the specific process:

The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation;

If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage.

If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station.

Preferably, in the acceptance module: when the model and point table data are consistent, based on the integrated transparent access technology of the main and sub-stations, the transmission of monitoring point information between the main and sub-stations, data verification and acceptance of equipment transmission are carried out;

Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information;

Data verification refers to judging the abnormality of the transmitted data and performing corresponding operations according to the judgment results;

The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment.

Preferably, between the acceptance module and the topology module: add a non-electric equipment import module, analyze the characteristics of the non-electric equipment, and expand the non-electric equipment in the CIM model, so as to realize the access of station control equipment and auxiliary equipment.

Further preferably, the specific steps of importing station control equipment and auxiliary equipment include:

(1) Extend the CIM model: add new categories to the CIM model;

(2) Define attributes: For each new category, corresponding attributes need to be defined;

(3) Establish association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship;

(4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model.

Preferably, in the topology module:

The master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing the power grid topology relationship;

The verification analysis of the topological relationship includes the verification of the subordination relationship, the inclusion relationship, and the connection relationship of the electrical equipment;

Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual.

A computer device is provided, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the computer program, it automatically Fusion maintenance method.

A computer-readable storage medium is also provided, on which a computer program is stored, and when the computer program is executed by a processor, it is based on any one of the above-mentioned grid equipment model automatic fusion maintenance methods.

Beneficial effects of the present invention: the mapping between the main station and the factory station is determined through the IEC61970 standard model, and the boundary cutting definition of the factory station model is designed according to the integration conditions of the factory station equipment and other models, and the master station performs the mapping according to the boundary of the substation model and the model matching mapping. Substation model import and point table automatic import, and then other station control equipment and auxiliary equipment are mixed in by means of extended definition, topological relationship is generated according to the attribute information and spatial information of the connected equipment, and finally the topological relationship is verified and analyzed. Realize the automatic import and maintenance of plant and station equipment, and improve the model maintenance efficiency of substations and centralized control stations.

Description of drawings

Fig. 1 is a method flowchart of an embodiment of the present invention,

Figure 2 is a schematic diagram of the mapping between the master station and the factory station model.

Figure 3 is a schematic diagram of an example of a boundary table,

Figure 4 is the flow chart of importing the plant station model.

Figure 5 is a flow chart of point table import,

Figure 6 is a schematic diagram of topological relationship generation,

Fig. 7 is a general overview of the embodiment.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Before carrying out the implementation of the present invention, the professional terms involved in this case are defined as follows:

The IEC 61970 series standards define the application programming interface (API) of the energy management system (EMS), with the purpose of facilitating the integration of various applications within the EMS from different manufacturers, the interconnection of the EMS with other systems within the dispatch center, and the realization of different Model exchange between dispatch center EMS. IEC 61970 is mainly composed of three parts: Interface Reference Model, Common Information Model (CIM) and Component Interface Specification (CIS). The interface reference model describes the way of system integration, the common information model defines the semantics of information exchange, and the component interface specification defines the syntax of information exchange.

Master Station: A control center consisting of a group of computers and monitoring equipment used to monitor and control various parts of the power system, such as power plants, substations, transmission lines, and distribution grids.

Factory station (substation): A substation or distribution station composed of transformers, switchgear, protection devices, metering devices, etc.

Master station CIM model: a standard data model used by the power system control center to describe various entities and their relationships in the power system and power market.

Substation SCL model: a standard data model describing substation hardware, software and communication equipment configuration.

IED model in SCL: a data model used to describe the configuration and programming of IED (Intelligent Electronic Device, Intelligent Electronic Device) in the power substation automation system.

Mapping: Correspond and convert the information in the CIM model of the master station to the information in the SCADA system of the slave station, so that data exchange and control instructions can be issued between the master station and the slave station.

Transparent access technology: directly access power system information without knowing the topology of the network and the connection mode between devices.

Logical node of substation motion communication: a logical concept for identifying and managing motion equipment in the motion communication system, usually represented by a logical address or a logical name.

Public data type: refers to the data type that can be shared by multiple programs or modules.

Point table (big point table): A table used to record information such as device attributes, status, control, monitoring and protection.

Master-substation integrated system: a system that integrates the master station and substations in the power system.

Jump, limit, more reasonable value:

Jump refers to the sudden change of a certain parameter or state in the power system, usually caused by some unexpected event or abnormal situation;

Over-limit means that a certain parameter or state in the power system exceeds the predetermined limit range;

The more reasonable value means that a certain parameter or state in the power system exceeds the predetermined reasonable range.

Upper layer functional module: advanced application program or management software in the power system, which is responsible for advanced functions such as monitoring, management, scheduling and control of the power system, and can conduct comprehensive monitoring and control of the power system.

Bottom functional modules: The equipment and devices in the power system, such as transformers, switches, and protection devices, are responsible for the basic functions of the power system.

Referring to Fig. 1, this embodiment provides a method for automatic fusion and maintenance of power grid equipment models, including the following steps:

Step 1: Determine the mapping between the master station and the factory station;

Step 2: Set the boundary cut definition of the station model;

Step 3: Design the service interface of the master-substation integrated system model interaction;

Step 4: According to the boundary of the sub-station model, the master station combines the model welding method to realize the seamless import of the sub-station model;

Step 5: The master station matches the mapping according to the model to realize the automatic import of the point table;

Step 6: When the model and point table data are consistent, carry out automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points;

Step 7: Generate the topological relationship, and perform verification analysis of the topological relationship.

In this embodiment, in step 1: based on the model of the IEC61970 standard,

When there is a difference between the CIM model of the master station and the SCL model of the factory station, the model needs to be adjusted and then mapped;

The difference between the CIM model of the master station and the SCL model of the factory station is mainly reflected in the following aspects:

Different levels of description: the main station CIM model is usually used to describe the overall structure of the power system, including power plants, substations, transmission lines, etc., while the plant SCL model is usually used to describe the local structure of the power system, for example, in a plant Protection devices, controllers, etc.

Different data elements: The CIM model of the master station usually contains more data elements, and some data elements are not in the SCL model of the plant station, such as configuration information and topology of the power system. The data elements usually included in the plant SCL model focus more on the parameter information and configuration information of protection devices, controllers and other equipment.

Different expression methods: the CIM model of the master station is usually expressed in a common modeling language such as XML or UML, while the SCL model of the factory station is usually expressed in an XML-based SCL language.

For a protection device of a plant, the CIM model of the master station may contain information such as the switch, voltage level, current level, and protection type to which the device belongs, while the SCL model of the plant contains more configuration information of the device, such as protection parameters For settings, switch control logic and other information, the CIM model of the master station pays more attention to the description of the overall architecture, while the SCL model of the factory station pays more attention to the parameter configuration information of local devices.

Change the object naming method in the master station CIM model and the plant station SCL model to be consistent. For example, a remote signaling object in the CIM model of the master station may be named "YX01", while it may be named "YX001" in the SCL model of the factory station. For mapping purposes, the same object naming rules can be used in both models.

Change the data types in the CIM model of the master station and the SCL model of the plant station to be consistent. For example, the data type of the IEEE standard may be used in the CIM model of the master station, and the data type of the IEC standard may be used in the SCL model of the plant station. Data types can be converted to the same format for mapping purposes.

Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent. For example, a remote signaling object in the CIM model of the master station may contain multiple attributes, while the SCL model of the plant station may only contain one attribute. For mapping, the data structure can be adjusted so that it conforms to the mapping rules.

To give a specific example, assume that a remote signaling object in the CIM model of the master station is defined as follows:

<YX rdf:about="#YX01">

<IdentifiedObject.name>YX01</IdentifiedObject.name>

<BaseVoltage rdf:resource="#220kV"/>

<YX.isState>true</YX.isState>

<YX.isOn>false</YX.isOn>

<YX.description>Remote letter 01</YX.description>

</YX>

The remote signaling objects in the plant SCL model are defined as follows:

<LNodeType id="YX001">

<DOType>

<SDOType id="YX001">

<BDA>

<DAName>isState</DAName>

<FC>ST</FC>

</BDA>

</SDOType>

</DOType>

</LNodeType>

For mapping, define a mapping rule to convert the two models:

The remote signaling object "YX01" in the master station CIM model corresponds to the remote signaling object "YX001" in the plant station SCL model.

In the master station CIM model, the "isState" attribute of the remote signaling object corresponds to the "isState" data attribute in the factory station SCL model.

In this way, it is possible to map between the CIM model of the master station and the SCL model of the plant station by defining the mapping rules. Based on the above explanations, those skilled in the art select the objects to be converted and the rules for conversion according to actual conditions.

The CIM model of the main station and the SCL model of the factory station describe the structure of the substation in the same way, and the mapping relationship between the substation and the voltage level can be directly established;

Set the busbar interval in the CIM model as a necessary model, and map the busbar interval in the CIM model of the master station with the interval in the bus section and the plant SCL model;

Analyze the structure of the IED model in the SCL model of the plant and the logical nodes and public data types of the substation motion communication, and establish the mapping relationship between the IED model and the CIM model of the master station. In the SCL model of the plant, the logical node types in the IED model The naming rules of and data attributes follow the IEC 61850 standard. The logical node types include LLN0, LLN, GGIO, etc., and the data attributes include ST, Mag, Q, Ang, etc. The LLN logical node type represents the logical node, and the ST data attribute represents the state quantity. The Mag data attribute represents the analog quantity, and the ST attribute under the LLN type node can be mapped with the state quantity in the CIM model of the master station, and the Mag attribute under the LLN type node can be mapped with the analog quantity in the CIM model of the master station. Similarly, the corresponding mapping relationship can be established by analyzing the naming rules of other logical node types and data attributes;

In the SCL model of the plant station, the connection node refers to the connection node object connected to different primary equipment, and the endpoint refers to an electrical connection point of the primary equipment. The connection of the endpoint to the connection node represents the topology relationship. The topology definition in the master station CIM model is in the topology package In it, it is also realized by connecting nodes and endpoints, and the plant SCL model can be mapped to the main station CIM model through endpoints and connecting nodes.

Finally, the mapping relationship is formed as shown in Figure 2.

In this embodiment, in step 2: based on the fusion conditions of the plant equipment and other models, the boundary cutting definition of the plant model is designed, specifically:

Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines.

The boundary table includes the following information: contains the following information: (1) Equipment or line name; (2) Subsystem or area to which it belongs; (3) Operating status; (4) Voltage level or rated voltage; (5) Operating parameters; (6) ) connection relationship.

Referring to Fig. 3, it is assumed that a power system includes two subsystems, namely system A and system B, wherein system A includes three substations, namely A1, A2, and A3, and system B includes two substations, respectively, B1 and B2. The five substations are connected to each other through transmission lines, and at the same time, System A and System B are also connected to each other through a boundary line. Based on the above rules and examples, those skilled in the art can obtain the boundary table in combination with common knowledge in the industry.

In step 3 of this embodiment: based on the service call of the master-substation integrated system, the corresponding integrated collaborative services are respectively deployed in the dispatching master station and the sub-stations, and a wide-area service bus suitable for the real-time monitoring environment of electric power between the master and sub-stations is established , so as to carry out the integrated service interaction of the main and sub-stations;

Based on the service call of the master-substation integrated system, the model request of the slave station and the model delivery interface of the master station are designed, and the model requested by the slave station and the range and transmission format of the model issued by the master station are specified in the interface.

Substation model request interface includes the following information:

(1) Request type: used to distinguish whether the substation requests a real-time model or a planned model;

(2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation;

(3) Request parameters: used to specify the detailed parameters of the substation request model, such as the request timestamp and the requested measurement point.

Taking the real-time model request as an example, the substation model request interface can be designed as follows,

POST /api/substation/model/realtime

Content-Type: application/json

{

"requestType": "realtime",

"scope": "device",

"parameters": {

"deviceId": "Device1",

"timestamp": "2023-03-16 10:00:00",

"measurements": ["Voltage", "Current"]

}

}

In the above example, the request type is real-time model, the request scope is a single device (namely Device1), and the request parameters include timestamp and requested measurement point (namely Voltage and Current).

The master station model delivery interface includes the following information:

(1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model;

(2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices, or the entire substation;

(3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, such as the delivery time stamp and the delivery measurement point.

Taking real-time model delivery as an example, the model delivery interface of the master station can be designed as follows,

POST /api/master/model/realtime

Content-Type: application/json

{

"sendType": "realtime",

"scope": "substation",

"parameters": {

"substationId": "Substation1",

"timestamp": "2023-03-16 10:00:00",

"measurements": ["Voltage", "Current"]

}

}

In the above example, the delivery type is real-time model, the delivery scope is the entire substation (ie Substation1), and the delivery parameters include timestamp and delivery measurement point (ie Voltage and Current).

In step 4 of this embodiment: referring to Fig. 4, based on the boundary cutting definition of the plant station model in step 2, find the boundary of the substation model, compare the substation model in the system with the model in the master station, and calculate the master station Model information that needs to be updated;

Specifically: determine whether the update information contains boundary information, if so, update the corresponding boundary information in the sub-station model, otherwise update the master station model information, so as to realize the automatic import of the sub-station model.

Updating the model information in the master station includes:

Equipment information such as generators and loads, such as equipment type, name, location, capacity, status, etc.

Power grid topology information, such as the connection relationship, switch status, operating parameters, etc. of equipment such as lines, transformers, switches, and isolating switches.

Power system operating status information, such as voltage, current, frequency, active power, reactive power, loss and other parameters.

In step 5 of this embodiment: referring to Fig. 5, based on the mapping between the master station and the factory station in step 1, the master station performs automatic import of the point table according to the model matching mapping, the specific process:

The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation;

If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage.

If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station.

In step 6 of this embodiment: under the condition that the model and point table data are consistent, based on the integrated transparent access technology of the main and sub-stations, the transmission of monitoring point information between the main and sub-stations, data verification, and acceptance of equipment transmission are carried out;

Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information;

Data verification refers to making abnormal judgments on the transmitted data, such as jumping, exceeding the limit, and exceeding reasonable values, and performing operations such as alarming and resetting according to the judgment results;

The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment.

In step 7:

Station control equipment and auxiliary equipment usually refer to equipment related to control and monitoring in the power system, including switch controllers, protective relays, telemetry and communication terminals, communication equipment, etc. These equipment play an important role in the operation and maintenance of the power system. It needs to be imported into the CIM model of the master station for management.

Analyze the characteristics of these devices, expand non-electric devices in the CIM model, and add necessary attributes to realize the access of station control devices and auxiliary devices. The specific steps include:

(1) Extending the CIM model: In order to support non-electric equipment, new categories need to be added to the CIM model. For example, a new category such as "Auxiliary Devices" could be created to store information about assistive devices;

(2) Define attributes: For each new category, corresponding attributes need to be defined, such as the name, model, location, status and other attributes of auxiliary equipment;

(3) Establish an association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship. For example, auxiliary equipment can establish an association relationship with corresponding switching equipment;

(4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model. Equipment information can usually be imported into a CIM model using formats such as XML or CSV.

In step 7 of this embodiment:

Referring to Figure 6, the master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing a power grid topological relationship;

Topological relationship verification analysis includes verification of affiliation, inclusion, and connection relationships of electrical equipment;

Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual.

This embodiment provides a power grid equipment model automatic fusion maintenance device, including the following modules:

Mapping module: determine the mapping between the master station and the factory station;

Boundary module: set the boundary cutting definition of the plant model;

Interaction module: design the service interface for the interaction of the master-substation integrated system model;

Substation model import module: the master station realizes the seamless import of substation models according to the boundary of the substation model, combined with the model welding method;

Point table import module: the master station can automatically import the point table according to the model matching mapping;

Acceptance module: Under the condition that the model and point table data are consistent, automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points are carried out;

Topology module: generate topological relations, and perform verification and analysis of topological relations.

Mapping module: Based on the IEC61970 standard model, determine the mapping between the master station and the factory station. When there is a difference between the master station CIM model and the factory station SCL model, the model needs to be adjusted and then mapped;

When the description of the substation structure in SCL and CIM is consistent, the mapping relationship between the substation and the voltage level can be directly established, and the bus interval in the CIM model of the master station is mapped to the interval between the bus section and the SCL model of the plant station;

Specific method: analyze the structure of the IED model in the SCL model of the power station and the logical nodes and public data types of the substation motion communication, establish the mapping relationship between the IED model and the CIM model of the main station, and map the logical nodes to the substations of various devices. Class, analyze the type of logical nodes and the naming rules of data attributes, so as to obtain the mapping relationship between data attributes and measurement values.

When there is a difference between the CIM model of the master station and the SCL model of the factory station, the methods for adjusting the model include:

(1) Change the naming method of objects in the CIM model of the master station and the SCL model of the factory station to be consistent;

(2) Change the data types in the CIM model of the master station and the SCL model of the factory station to be consistent;

(3) Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent.

In the boundary module: based on the fusion conditions of the plant equipment and other models, design the boundary cutting definition of the plant model, specifically:

Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines.

The boundary table includes the following information: contains the following information: (1) Equipment or line name; (2) Subsystem or area to which it belongs; (3) Operating status; (4) Voltage level or rated voltage; (5) Operating parameters; (6) ) connection relationship.

In the interactive module: based on the service call of the master-substation integrated system, the corresponding integrated collaborative services are deployed in the dispatching master station and the sub-station respectively, and a wide-area service bus suitable for the real-time power monitoring environment between the master and sub-stations is established, so that the master-substation Station integration service interaction;

Based on the service call of the master-substation integrated system, the model request interface of the slave station and the model delivery interface of the master station are designed. The model requested by the slave station and the scope and transmission format of the model issued by the master station are specified in the interface.

Substation model request interface includes the following information:

(1) Request type: used to distinguish whether the substation requests a real-time model or a planned model;

(2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation;

(3) Request parameters: used to specify the detailed parameters of the substation request model, such as the request timestamp and the requested measurement point;

The master station model delivery interface includes the following information:

(1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model;

(2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices or the entire substation;

(3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, such as the delivery time stamp and the delivery measurement point.

In the substation model import module: based on the boundary cutting definition of the plant station model in the boundary module, find the boundary of the substation model, compare the substation model in the system with the model in the master station, and calculate the model information that the master station needs to update ;

Specifically: determine whether the update information contains boundary information, if so, update the corresponding boundary information in the sub-station model, otherwise update the master station model information, so as to realize the automatic import of the sub-station model.

Updating the model information in the master station includes: (1) equipment information such as generators and loads; (2) grid topology information; (3) power system operating status information.

Preferably, in the point table import module: based on the mapping between the master station and the plant station in the mapping module, the master station automatically imports the point table according to the model matching mapping, the specific process:

The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation;

If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage.

If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station.

In the acceptance module: when the model and point table data are consistent, based on the integrated transparent access technology of the main and sub-stations, the transmission of monitoring point information between the main and sub-stations, data verification and acceptance of equipment transmission are carried out;

Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information;

Data verification refers to judging the abnormality of the transmitted data and performing corresponding operations according to the judgment results;

The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment.

Between the acceptance module and topology module: add non-electric equipment import module, analyze the characteristics of non-electric equipment, expand non-electric equipment in the CIM model, so as to realize the access of station control equipment and auxiliary equipment.

Further preferably, the specific steps of importing station control equipment and auxiliary equipment include:

(1) Extend the CIM model: add new categories to the CIM model;

(2) Define attributes: For each new category, corresponding attributes need to be defined;

(3) Establish association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship;

(4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model.

In the topology module:

The master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing the power grid topology relationship;

Topological relationship verification analysis includes verification of affiliation, inclusion, and connection relationships of electrical equipment;

Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual.

This embodiment provides a computer device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the computer program, the automatic fusion maintenance method based on the above-mentioned power grid equipment model is performed.

A computer-readable storage medium is also provided, on which a computer program is stored. When the computer program is executed by a processor, the automatic fusion maintenance method based on the above-mentioned power grid equipment model is provided.

In this embodiment, the mapping between the main station and the factory station is determined through the IEC61970 standard model, and the boundary cutting definition of the factory station model is designed according to the integration conditions of the factory station equipment and other models. Import the station model and automatically import the point table, and then use the extended definition method to mix other station control equipment and auxiliary equipment, generate topological relations according to the attribute information and spatial information of the connected equipment, and finally carry out the verification and analysis of the topological relations to realize The automatic import and maintenance of plant and station equipment improves the model maintenance efficiency of substations and centralized control stations. And provide related computing equipment and storage media.

The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and modifications to some of the technical features according to the disclosed technical content without creative work. Deformation, these replacements and deformations are all within the protection scope of the present invention.

Claims (30)

1. A power grid equipment model automatic fusion connection maintenance method, is characterized in that, comprises the following steps: Step 1: Determine the mapping between the master station and the factory station; Step 2: Set the boundary cut definition of the station model; Step 3: Design the service interface of the master-substation integrated system model interaction; Step 4: According to the boundary of the sub-station model, the master station combines the model welding method to realize the seamless import of the sub-station model; Step 5: The master station matches the mapping according to the model to realize the automatic import of the point table; Step 6: When the model and point table data are consistent, carry out automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points; Step 7: Generate the topological relationship, and perform verification analysis of the topological relationship. 2. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 1: based on the IEC61970 standard model, determine the mapping between the master station and the plant station, when the master station CIM There are differences between the model and the SCL model of the factory station, and the model needs to be adjusted and then mapped; When the description of the substation structure in SCL and CIM is consistent, the mapping relationship between the substation and the voltage level can be directly established, and the bus interval in the CIM model of the master station is mapped to the interval between the bus section and the SCL model of the plant station; The mapping further includes: analyzing the structure of the IED model in the SCL model of the substation and the logical nodes and public data types of the substation motion communication, establishing the mapping relationship between the IED model and the CIM model of the main station, and mapping the logical nodes to various The subclass of equipment analyzes the type of logical nodes and the naming rules of data attributes, so as to obtain the mapping relationship between data attributes and measurement values. 3. The automatic fusion maintenance method of a power grid equipment model according to claim 2, wherein when there is a difference between the CIM model of the main station and the SCL model of the plant station, the method for adjusting the model comprises: (1) Change the naming method of objects in the CIM model of the master station and the SCL model of the factory station to be consistent; (2) Change the data types in the CIM model of the master station and the SCL model of the factory station to be consistent; (3) Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent. 4. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 2: based on the fusion conditions of the plant and station equipment and other models, the boundary cut definition of the plant and station model is designed : Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines. 5. A method for automatic fusion and maintenance of power grid equipment models according to claim 4, wherein the boundary table includes the following information: (1) name of equipment or line; (2) subsystem or area to which it belongs; ( 3) Operating status; (4) Voltage level or rated voltage; (5) Operating parameters; (6) Connection relationship. 6. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 3: based on the service call of the master-substation integrated system, the dispatching master station and the sub-station are respectively deployed The corresponding integrated collaborative service establishes a wide-area service bus suitable for the real-time monitoring environment of electric power between the main and sub-stations, so as to carry out the integrated service interaction of the main and sub-stations; Based on the service call of the master-substation integrated system, the model request interface of the slave station and the model delivery interface of the master station are designed. The model requested by the slave station and the scope and transmission format of the model issued by the master station are specified in the interface. 7. A method for automatic fusion and maintenance of power grid equipment models according to claim 6, wherein the substation model request interface includes the following information: (1) Request type: used to distinguish whether the substation requests a real-time model or a planned model; (2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation; (3) Request parameters: used to specify the detailed parameters of the substation request model, which can be the request timestamp and the requested measurement point; The master station model delivery interface includes the following information: (1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model; (2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices or the entire substation; (3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, which can be the delivery time stamp and the delivery measurement point. 8. A method for automatic fusion maintenance of power grid equipment models according to claim 1, characterized in that, in said step 4: based on the boundary cut definition of the plant station model described in step 2, find the substation model The boundary of the substation in the system is compared with the model in the master station, and the model information that the master station needs to update is calculated; It further includes: judging whether the update information contains boundary information, if yes, updating the corresponding boundary information in the sub-station model, otherwise updating the main station model information, so as to realize the automatic import of the sub-station model. 9. A method for automatic fusion and maintenance of power grid equipment models according to claim 8, characterized in that updating the model information in the master station includes: (1) generator and load equipment information; (2) power grid topology information ; (3) Power system operation status information. 10. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 5: based on the mapping between the master station and the plant station in step 1, the master station matches the mapping according to the model, The automatic import of the point table further includes the following steps: The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation; If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage; If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station. 11. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 6: when the model and point table data are consistent, transparent adjustment based on the integration of master and substations Read technology, carry out information transmission, data verification and acceptance of equipment transmission at monitoring points between the main and sub-stations; Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information; Data verification refers to judging the abnormality of the transmitted data and performing corresponding operations according to the judgment results; The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment. 12. A method for automatic fusion maintenance of power grid equipment models according to claim 1, characterized in that, between said step 6 and step 7, the step of importing station control equipment and auxiliary equipment is added, and the status of these equipment is analyzed Features, expand non-electric equipment in the CIM model, so as to realize the access of station control equipment and auxiliary equipment. 13. A method for automatic fusion and maintenance of power grid equipment models according to claim 12, wherein the specific steps of importing station control equipment and auxiliary equipment include: (1) Extend the CIM model: add new categories to the CIM model; (2) Define attributes: For each new category, corresponding attributes need to be defined; (3) Establish association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship; (4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model. 14. A method for automatic fusion and maintenance of power grid equipment models according to claim 1, characterized in that in step 7: The master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing the power grid topology relationship; The verification analysis of the topological relationship includes the verification of the subordination relationship, the inclusion relationship, and the connection relationship of the electrical equipment; Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual. 15. A power grid equipment model automatic fusion maintenance device, characterized in that it includes the following modules: Mapping module: determine the mapping between the master station and the factory station; Boundary module: set the boundary cutting definition of the plant model; Interaction module: design the service interface for the interaction of the master-substation integrated system model; Substation model import module: the master station realizes the seamless import of substation models according to the boundary of the substation model, combined with the model welding method; Point table import module: the master station can automatically import the point table according to the model matching mapping; Acceptance module: Under the condition that the model and point table data are consistent, automatic information transmission, data verification, and acceptance of equipment transmission at monitoring points are carried out; Topology module: generate topological relations, and perform verification and analysis of topological relations. 16. A device for automatic fusion and maintenance of power grid equipment models according to claim 15, characterized in that the mapping module: based on the IEC61970 standard model, determines the mapping between the master station and the plant station, when the master station CIM model There are differences with the SCL model of the factory station, and the model needs to be adjusted and then mapped; When the description of the substation structure in SCL and CIM is consistent, the mapping relationship between the substation and the voltage level can be directly established, and the bus interval in the CIM model of the master station is mapped to the interval between the bus section and the SCL model of the plant station; The mapping further includes: analyzing the structure of the IED model in the SCL model of the substation and the logical nodes and public data types of the substation motion communication, establishing the mapping relationship between the IED model and the CIM model of the main station, and mapping the logical nodes to various The subclass of equipment analyzes the type of logical nodes and the naming rules of data attributes, so as to obtain the mapping relationship between data attributes and measurement values. 17. The device for automatic fusion and maintenance of power grid equipment models according to claim 16, characterized in that, when there is a difference between the CIM model of the main station and the SCL model of the plant station, the method for adjusting the model includes: (1) Change the naming method of objects in the CIM model of the master station and the SCL model of the factory station to be consistent; (2) Change the data types in the CIM model of the master station and the SCL model of the factory station to be consistent; (3) Change the data structures in the CIM model of the master station and the SCL model of the factory station to be consistent. 18. An automatic fusion maintenance device for power grid equipment models according to claim 15, characterized in that, in the boundary module: based on the fusion conditions of the plant equipment and other models, the boundary cutting definition of the plant model is designed : Define the contact lines between the plant stations as boundary lines, then define the electrical equipment on the boundary lines as boundary equipment, and generate a boundary table including boundary equipment and boundary lines. 19. The device for automatic fusion and maintenance of power grid equipment models according to claim 18, wherein the boundary table includes the following information: (1) name of equipment or line; (2) subsystem or area to which it belongs; ( 3) Operating status; (4) Voltage level or rated voltage; (5) Operating parameters; (6) Connection relationship. 20. The device for automatic fusion and maintenance of power grid equipment models according to claim 15, characterized in that, in the interactive module: based on the service call of the master-substation integrated system, it is deployed in the dispatching master station and the sub-station respectively The corresponding integrated collaborative service establishes a wide-area service bus suitable for the real-time monitoring environment of power between the master and sub-stations, so as to carry out the integrated service interaction of the master and sub-stations; Based on the service call of the master-substation integrated system, the model request interface of the slave station and the model delivery interface of the master station are designed. The model requested by the slave station and the scope and transmission format of the model issued by the master station are specified in the interface. 21. A power grid equipment model automatic fusion maintenance device according to claim 20, characterized in that the substation model request interface includes the following information: (1) Request type: used to distinguish whether the substation requests a real-time model or a planned model; (2) Request model range: used to specify the model range requested by the substation, which can be a single device, a group of devices, or the entire substation; (3) Request parameters: used to specify the detailed parameters of the substation request model, which can be the request timestamp and the requested measurement point; The master station model delivery interface includes the following information: (1) Delivery type: used to distinguish whether the master station delivers a real-time model or a planned model; (2) Released model range: used to specify the model range issued by the master station, which can be a single device, a group of devices or the entire substation; (3) Delivery parameters: used to specify the detailed parameters of the model delivered by the master station, which can be the delivery time stamp and the delivery measurement point. 22. An automatic fusion maintenance device for power grid equipment models according to claim 15, characterized in that, in the substation model import module: based on the boundary cutting definition of the plant station model described in the boundary module, find The boundary of the substation model, compare the substation model in the system with the model in the master station, and calculate the model information that the master station needs to update; It further includes: judging whether the update information contains boundary information, if yes, updating the corresponding boundary information in the sub-station model, otherwise updating the main station model information, so as to realize the automatic import of the sub-station model. 23. An automatic fusion maintenance device for power grid equipment models according to claim 22, characterized in that updating the model information in the master station includes: (1) equipment information such as generators and loads; (2) power grid topology (3) Power system operation status information. 24. The device for automatic fusion and maintenance of power grid equipment models according to claim 15, characterized in that in the point table import module: based on the mapping between the master station and the plant station in the mapping module, the master station is matched according to the model Mapping, to automatically import the point table, further includes the following steps: The substation initiates a request to the master station to query the current point table information of the master station, and the master station encapsulates the point table information in a predefined format and returns it to the substation; If the point table returned by the master station is empty, the slave station creates a new point table and sends it to the master station for storage; If the point table returned by the main station is not empty, compare the point table returned by the main station with the information template of the sub-site table. If there is no difference, no operation is required; The information template is adjusted and the result is returned to the main station. 25. An automatic fusion maintenance device for power grid equipment models according to claim 15, characterized in that, in the acceptance check module: when the model and point table data are consistent, the transparent adjustment based on the integration of the master and substations Read technology, carry out information transmission, data verification and acceptance of equipment transmission at monitoring points between the main and sub-stations; Among them, the monitoring point information transmission includes the transmission of specific measurement data information of the equipment and the transmission of equipment status information; Data verification refers to judging the abnormality of the transmitted data and performing corresponding operations according to the judgment results; The acceptance of equipment transmission includes the verification of the upper functional modules and the lower functional modules connected to the external tested equipment to ensure the normal operation of the equipment. 26. The device for automatic fusion and maintenance of power grid equipment models according to claim 15, characterized in that, between the acceptance module and the topology module, a non-electric equipment import module is added to analyze the characteristics of non-electric equipment, Expand the non-electric equipment in the CIM model, so as to realize the access of station control equipment and auxiliary equipment. 27. A device for automatic fusion and maintenance of power grid equipment models according to claim 26, characterized in that the specific steps of importing station control equipment and auxiliary equipment include: (1) Extend the CIM model: add new categories to the CIM model; (2) Define attributes: For each new category, corresponding attributes need to be defined; (3) Establish association relationship: In order to link auxiliary equipment with other equipment in the power system, it is necessary to establish a corresponding association relationship; (4) Import data: import the information of station control equipment and auxiliary equipment into the CIM model. 28. A power grid equipment model automatic fusion maintenance device according to claim 15, characterized in that, in the topology module: The master station establishes a device attribute data table based on the collected business information, and associates the attribute data and spatial data of the corresponding equipment in the device attribute data table and the device space data table to form a device topology relationship information table, thereby constructing the power grid topology relationship; The verification analysis of the topological relationship includes the verification of the subordination relationship, the inclusion relationship, and the connection relationship of the electrical equipment; Among them, the affiliation check refers to verifying whether the equipment with the affiliation relationship defined in the database meets the specifications; the inclusion relationship check refers to checking whether the equipment with the inclusion relationship has established a correct inclusion relationship; the connection relationship check refers to checking whether Establish the correct connection relationship according to the connection point requirements of the equipment, and check whether the equipment with the connection relationship defined in the database meets the equipment defined in the manual. 29. A computer device, comprising a memory, a processor, and a computer program stored in the memory and operable on the processor, characterized in that, when the processor executes the computer program, based on any of claims 1-14, An automatic fusion maintenance method for a power grid equipment model. 30. A computer-readable storage medium, on which is stored a computer program, characterized in that, when the computer program is executed by a processor, automatic fusion maintenance based on the power grid equipment model described in any one of claims 1-14 method.