CN116628937A

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

Info

Publication number: CN116628937A
Application number: CN202310414113.5A
Authority: CN
Inventors: 陈艳; 朱健; 孔伯骏; 吉宏斌; 朱亚天; 周星辰; 黄�俊; 王乐; 高婷婷
Original assignee: Yangzhou Power Supply Branch Of State Grid Jiangsu Electric Power Co ltd; State Grid Jiangsu Electric Power Co Ltd
Current assignee: Yangzhou Power Supply Branch Of State Grid Jiangsu Electric Power Co ltd; State Grid Jiangsu Electric Power Co Ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-08-22

Abstract

The invention provides an automatic fusion maintenance method, device, equipment and medium for a power grid equipment model, which comprise the steps of determining mapping of a master station and a plant station; setting boundary cutting definition of a plant station model; designing a service interface of interaction of the main station and the substation integrated system model; the master station realizes seamless importing of the substation model according to the boundary of the substation model and by combining a model welding method; the master station realizes automatic importing of the point table according to the model matching mapping; under the condition that the data of the model and the point table are consistent, carrying out automatic information transmission, data check and acceptance check of equipment transmission on the monitoring points; generating a topological relation and performing verification analysis on the topological relation. According to the invention, the mapping between the master station and the plant is determined through the IEC61970 standard model, so that the automatic import maintenance of plant equipment is realized, and the model maintenance efficiency of the transformer substation and the centralized control station is improved.

Description

Automatic fusion maintenance method, device, equipment and medium for power grid equipment model

Technical Field

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

Background

The model splicing interoperation method based on IEC61970 is applied to maintenance of the large power grid model, so that a large amount of model maintenance workload is saved, and a more accurate and real-time equipment model is provided for applications such as large power grid tide calculation and simulation analysis.

At present, the debugging work of the power distribution automation terminal access based on an IEC61970 model mainly depends on master station operation and maintenance personnel to conduct point table importing on a terminal to be debugged in advance, the traditional importing mode basically adopts a large point table mode, when transformer substation equipment changes, all measuring points of each equipment on the site need to be counted manually and uploaded to a middle station or a master station side so as to keep the unification of site measured values and the master station, after importing is finished, follow-up terminal debugging processes need to be conducted by manual work or a debugging device, the problem of low efficiency is caused, and the problem of first processing cannot be conducted due to the fact that the master station operation and maintenance personnel are relied on for matching.

Disclosure of Invention

Aiming at the technical problems, the invention provides an automatic fusion maintenance method, device, equipment and medium for a power grid equipment model, which realize automatic import maintenance of plant station equipment and improve the model maintenance efficiency of a transformer substation and a centralized control station.

The technical scheme of the invention is as follows: an automatic fusion maintenance method for a power grid equipment model comprises the following steps:

step 1: determining the mapping between the master station and the plant station;

step 2: setting boundary cutting definition of a plant station model;

step 3: designing a service interface of interaction of the main station and the substation integrated system model;

step 4: the master station realizes seamless importing of the substation model according to the boundary of the substation model and by combining a model welding method;

step 5: the master station realizes automatic importing of the point table according to the model matching mapping;

step 6: under the condition that the data of the model and the point table are consistent, carrying out automatic information transmission, data check and acceptance check of equipment transmission on the monitoring points;

step 7: generating a topological relation and performing verification analysis on the topological relation.

Preferably, in the step 1: based on an IEC61970 standard model, determining the mapping of a master station and a plant station, and when the difference exists between a master station CIM model and a plant station SCL model, adjusting the model and then mapping;

when the description of the substation structure in the SCL and the CIM is consistent, the mapping relation between the transformer station and the voltage level can be directly established, and the bus interval in the master station CIM model and the bus segment are mapped with the interval in the substation SCL model;

Analyzing the structure of an IED model in a substation SCL model and the logical nodes and common data types of substation motion communication, establishing a mapping relation between the IED model and a master station CIM model, mapping the logical nodes to subclasses of various devices respectively, and analyzing naming rules of the types and data attributes of the logical nodes so as to obtain the mapping relation between the data attributes and the measurement values.

Preferably, when the master station CIM model and the plant station SCL model are different, the method for adjusting the model includes:

(1) Changing object naming modes in the master station CIM model and the factory station SCL model into consistency;

(2) Changing the data types in the master station CIM model and the factory station SCL model into the same data types;

(3) And changing the data structures in the master station CIM model and the factory station SCL model into the same data structures.

Preferably, in the step 2: based on the fusion condition of the plant station equipment and other models, designing boundary cutting definition of the plant station model, wherein the boundary cutting definition specifically comprises the following steps:

the connection line between the stations is defined as a boundary line, then the power equipment on the boundary line is defined as boundary equipment, and a boundary table containing the boundary equipment and the boundary line is generated.

Preferably, the boundary table includes the following information: comprising the following information: (1) device or line name; (2) the subsystem or region to which it belongs; (3) an operational state; (4) voltage class or rated voltage; (5) an operating parameter; (6) connection relation.

Preferably, in the step 3: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

based on the service call of the main station and sub station integrated system, a sub station model request and main station model issuing interface is designed, and the model of the sub station request, the main station issuing model range and the transmission format are defined in the interface.

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

(1) Request type: whether a real-time model or a planning model is used for the regional substation request;

(2) Request model scope: the model range used to specify the substation request may be a single device, a group of devices, an entire substation;

(3) Request parameters: for specifying detailed parameters of the substation request model, such as request time stamp, measurement point of request.

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

(1) Type of delivery: the method is used for distinguishing whether the real-time model or the planning model is issued by the master station;

(2) Issuing model range: the model range used for designating the master station to issue can be a single device, a group of devices and the whole substation;

(3) Issuing parameters: and the method is used for specifying detailed parameters of the master station issuing model, such as issuing a time stamp and issuing a measuring point.

Preferably, in the step 4: based on the boundary cutting definition of the plant station model in the step 2, finding the boundary of the substation model, comparing the substation model with the model in the master station in the system, and calculating the model information required to be updated by the master station;

the method comprises the following steps: judging whether the updated information contains boundary information, if so, updating the corresponding boundary information in the substation model, otherwise, updating the master station model information, thereby realizing automatic import of the substation model.

Preferably, updating the model information in the master station includes: (1) equipment information such as a generator and a load; (2) grid topology information; (3) power system operation state information.

Preferably, in the step 5: based on the mapping between the master station and the plant station in the step 1, the master station automatically imports the point table according to the model matching mapping, and the specific process is as follows:

the substation initiates a request to the master station, inquires the current point table information of the master station, encapsulates the point table information according to a predefined format, and returns the encapsulated point table information to the substation;

if the point table returned by the master station is empty, the substation creates a new point table and sends the new point table to the master station for storage.

If the point table returned by the master station is not empty, comparing the point table returned by the master station with the sub-station table information template, and if the point table is not different, not needing to be operated; if the difference exists, the point table returned by the master station is adjusted according to the information template of the sub-station table, and the result is returned to the master station.

Preferably, in the step 6: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

the monitoring point information transmission comprises transmission of equipment specific measurement data information and transmission of equipment state information;

the data checking means that the transmitted data is subjected to abnormal judgment and corresponding operation is carried out according to the judgment result;

the checking and accepting of the device transmission comprises checking the upper functional module and the lower functional module connected with the external checked device so as to ensure the normal operation of the device.

Preferably, between said step 6 and step 7: and (3) importing the station control equipment and the auxiliary equipment, analyzing the characteristics of the equipment, and expanding the non-power equipment in the CIM model so as to realize the access of the station control equipment and the auxiliary equipment.

Preferably, the specific steps of introducing the control equipment and the auxiliary equipment comprise:

(1) Extending the CIM model: adding a new category in the CIM model;

(2) Defining attributes: for each new category, a corresponding attribute needs to be defined;

(3) Establishing an association relation: in order to link the auxiliary equipment with other equipment of the power system, a corresponding association relationship needs to be established;

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

Preferably, in the step 7:

the master station establishes a device attribute data table based on the collected service information, and performs topological relation association on attribute data and space data of devices corresponding to the device attribute data table and the device space data table to form a device topological relation information table, so that a power grid topological relation is established;

the topological relation verification analysis comprises verification of subordinate relations, containing relations and connection relations of electrical equipment;

the subordinate relation verification refers to verifying whether the equipment with the subordinate relation defined in the database meets the equipment of the instruction book or not; the inclusion relation checking means that whether the equipment with the inclusion relation establishes a correct inclusion relation or not is checked; the connection relation checking means checking whether a correct connection relation is established according to the connection point requirements of the devices, and checking whether the devices with the connection relation defined in the database meet the devices defined in the specification.

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

and a mapping module: determining the mapping between the master station and the plant station;

boundary module: setting boundary cutting definition of a plant station model;

and an interaction module: designing a service interface of interaction of the main station and the substation integrated system model;

substation model importing module: the master station realizes seamless importing of the substation model according to the boundary of the substation model and by combining a model welding method;

the point table importing module: the master station realizes automatic importing of the point table according to the model matching mapping;

and (5) checking and accepting module: under the condition that the data of the model and the point table are consistent, carrying out automatic information transmission, data check and acceptance check of equipment transmission on the monitoring points;

topology module: generating a topological relation and performing verification analysis on the topological relation.

Preferably, the mapping module: based on an IEC61970 standard model, determining the mapping of a master station and a plant station, and when the difference exists between a master station CIM model and a plant station SCL model, adjusting the model and then mapping;

The specific method comprises the following steps: analyzing the structure of an IED model in a substation SCL model and the logical nodes and common data types of substation motion communication, establishing a mapping relation between the IED model and a master station CIM model, mapping the logical nodes to subclasses of various devices respectively, and analyzing naming rules of the types and data attributes of the logical nodes so as to obtain the mapping relation between the data attributes and the measurement values.

Further preferably, when the master station CIM model and the plant station SCL model are different, the method for adjusting the model includes:

Preferably, in the boundary module: based on the fusion condition of the plant station equipment and other models, designing boundary cutting definition of the plant station model, wherein the boundary cutting definition specifically comprises the following steps:

Further preferably, the boundary table includes the following information: comprising the following information: (1) device or line name; (2) the subsystem or region to which it belongs; (3) an operational state; (4) voltage class or rated voltage; (5) an operating parameter; (6) connection relation.

Preferably, in the interaction module: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

based on the service call of the main station and sub station integrated system, a sub station model request interface and a main station model issuing interface are designed, and the model of the sub station request, the main station issuing model range and the transmission format are defined in the interface.

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

(3) Request parameters: detailed parameters used for specifying a substation request model, such as a request time stamp and a requested measuring point;

The master station model issuing interface comprises the following information:

(2) Issuing model range: the model range used for designating the master station to issue can be a single device, a group of devices or the whole substation;

Preferably, the substation model importing module is: based on the boundary cutting definition of the plant station model in the boundary module, finding the boundary of the substation model, comparing the substation model with the model in the master station in the system, and calculating the model information required to be updated by the master station;

Further preferably, updating the model information in the master station includes: (1) equipment information such as a generator and a load; (2) grid topology information; (3) power system operation state information.

Preferably, the point table is imported into a module: based on the mapping between the master station and the plant stations in the mapping module, the master station performs automatic import of the point table according to the model matching mapping, and the specific process is as follows:

Preferably, in the acceptance module: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

the data checking means to judge the transmitted data abnormality and to perform corresponding operation according to the judging result;

Preferably, between the acceptance module and the topology module: and adding a non-power equipment import module, analyzing the characteristics of the non-power equipment, and expanding the non-power equipment in the CIM model so as to realize the access of the station control equipment and the auxiliary equipment.

Further preferably, the specific steps of introducing the control device and the auxiliary device include:

(1) Extending the CIM model: adding a new category in the CIM model;

Preferably, in the topology module, the following steps are:

There is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to automatically fuse a maintenance method based on a grid device model as defined in any one of the preceding claims.

There is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is based on the grid plant model automatic fusion maintenance method of any one of the above.

The invention has the beneficial effects that: the mapping of the master station and the plant station is determined through an IEC61970 standard model, boundary cutting definition of the plant station model is designed according to fusion conditions of plant station equipment and other models, the master station conducts sub-station model import and automatic import of a point table according to sub-station model boundary and model matching mapping, then other station control equipment and auxiliary equipment are mixed in an expansion definition mode, a topological relation is generated according to accessed equipment attribute information and space information, finally verification analysis of the topological relation is conducted, automatic import maintenance of the plant station equipment is achieved, and model maintenance efficiency of a transformer substation and a centralized control station is improved.

Drawings

Figure 1 is a flow chart of a method of an embodiment of the present invention,

figure 2 is a schematic diagram of a master station and plant model mapping,

figure 3 is an exemplary schematic diagram of a boundary table,

figure 4 is a plant model import flow diagram,

figure 5 is a point table import flow diagram,

figure 6 is a schematic diagram of a topology generation,

fig. 7 is a general overview of an embodiment.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Before carrying out the embodiments of the present invention, the terms of art to which the present application relates are defined as follows:

the IEC 61970 series of standards defines Application Program Interfaces (APIs) for Energy Management Systems (EMS) in order to facilitate integration of various applications within EMS from different vendors, to facilitate interconnection of EMS with other systems within a dispatch center, and to facilitate model exchanges between different dispatch center EMS. IEC 61970 is mainly composed of three parts, an interface reference model, a Common Information Model (CIM), and a Component Interface Specification (CIS). The interface reference model describes the way the system is integrated, the common information model defines the semantics of the information exchange, and the component interface specification defines the syntax of the information exchange.

The main station: a control center consisting of a set of computers and monitoring equipment for monitoring and controlling various parts of an electrical power system, such as power plants, substations, transmission lines and distribution networks.

Station (substation): the transformer station or the power distribution station consists of a transformer, a switch device, a protection device, a metering device and the like.

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

Station SCL model: standard data models describing substation hardware, software and communication device configurations.

IED model in SCL: a data model for describing the configuration and programming of IEDs (Intelligent Electronic Device, intelligent electronic devices) in an electrical substation automation system.

Mapping: and the information in the CIM of the master station is corresponding to and converted from the information in the SCADA system of the substation, so that data exchange and control instruction issuing can be carried out between the master station and the substation.

Transparent retrieval technology: the power system information is directly accessed without knowing the topology of the network and the manner of connection between the devices.

Logical node of substation motion communication: one logical concept for identifying and managing mobile devices in a mobile communication system is generally represented using logical addresses or logical names.

Common data type: refers to a type of data that can be shared by multiple programs or modules.

Dot table (large dot table): a table for recording information of the attribute, state, control, monitoring, protection, etc. of the device.

Main station and sub station integrated system: and the system integrates the master station and the substation in the power system.

Jump, out of limit, more reasonable value:

jump refers to a sudden change in a certain parameter or state in the power system, usually caused by a certain emergency or abnormal situation;

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

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

Upper layer functional module: advanced application programs or management software in the power system are responsible for advanced functions such as monitoring, management, scheduling and control of the power system, and can comprehensively monitor and control the power system.

Bottom layer function module: devices and equipment in the power system, such as transformers, switches, protection devices, are responsible for the basic functions of the power system.

Referring to fig. 1, the embodiment provides an automatic fusion maintenance method for a power grid equipment model, which includes the following steps:

step 2: setting boundary cutting definition of a plant station model;

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

when the CIM model of the master station and the SCL model of the plant station are different, the model is required to be adjusted and then mapped;

the master CIM model and the factory SCL model are different, and mainly appear in the following aspects:

the description level is different: the master CIM model is typically used to describe the overall structure of a power system, including power plants, substations, transmission lines, etc., while the substation SCL model is typically used to describe the local structure of a power system, e.g. protection devices, controllers, etc., in a certain substation.

The data elements are different: the master CIM model typically contains a relatively large number of data elements, and some data elements are not available in the plant SCL model, such as configuration information, topology, etc. of the power system. The data elements usually included in the plant SCL model focus more on the parameter information and configuration information of the protection device, the controller, and other devices.

The expression modes are different: the master CIM model is typically expressed using a common modeling language such as XML or UML, while the factory SCL model is typically expressed using an XML-based SCL language.

For a protection device of a plant, the master station CIM model may include information of a switch, a voltage level, a current level, a protection type and the like to which the device belongs, while the plant SCL model further includes configuration information of the device, such as information of protection parameter setting, switch control logic and the like, the master station CIM model focuses on description of an overall architecture, and the plant SCL model focuses on parameter configuration information of local equipment.

And changing object naming modes in the master station CIM model and the factory station SCL model into consistency. For example, one remote signaling object in the master CIM model may be named "YX01" and one remote signaling object in the factory station SCL model may be named "YX001". For mapping, the same object naming convention can be used in both models.

And changing the data types in the master station CIM model and the factory station SCL model into the same data types. For example, the master CIM model may use IEEE standard data types, while the factory station SCL model may use IEC standard data types. For mapping, the data types may be converted to the same format.

And changing the data structures in the master station CIM model and the factory station SCL model into the same data structures. For example, a remote signaling object in the master CIM model may contain multiple attributes, while a plant SCL model may contain only one attribute. For mapping, the data structure may be adapted to conform to the mapping rules.

As a specific example, assume that a remote signaling object in the master CIM model is defined as follows:

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

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

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

< YX.description > remote signaling 01</YX. Description >

</YX>

The remote signaling object in the plant SCL model is defined as follows:

<BDA>

<DAName>isState</DAName>

</BDA>

</SDOType>

</DOType>

</LNodeType>

for mapping, a mapping rule is defined to transform the two models:

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

In the master 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, the master CIM model and the factory station SCL model can be mapped by defining a mapping rule. Based on the above explanation, the person skilled in the art selects the object of transformation and the rule of transformation according to the actual situation.

The description of the substation structure by the master station CIM model and the substation SCL model is consistent, and the mapping relation between the transformer station and the voltage level can be directly established;

setting a bus interval in a CIM model as a necessary model, and mapping the bus interval in a master station CIM model with the interval between a bus segment and a factory station SCL model;

analyzing a structure of an IED model in a plant SCL model and a logical node and a public data type of substation motion communication, establishing a mapping relation between the IED model and a master station CIM model, and in the plant SCL model, naming rules of the logical node type and the data attribute in the IED model follow IEC 61850 standard, wherein the logical node type comprises LLN0, LLN, GGIO and the like, the data attribute comprises ST, mag, Q, ang and the like, the LLN logical node type represents a logical node, the ST data attribute represents a state quantity, the Mag data attribute represents an analog quantity, the ST attribute under the LLN type node can be mapped with the state quantity in the master station CIM model, and the Mag attribute under the LLN type node can be mapped with the analog quantity in the master station CIM model. Similarly, corresponding mapping relations can be established by analyzing naming rules of other logical node types and data attributes;

In the station SCL model, a connecting node refers to a connecting node object for connecting different secondary devices, an end point refers to an electrical connection point of the secondary devices, the end point is connected to the connecting node to represent a topological relation, topology in the master station CIM model is defined in a topology package and is realized through the connecting node and the end point, and the station SCL model can be mapped to the master station CIM model through the end point and the connecting node.

The resulting mapping is shown in fig. 2.

In this embodiment, in step 2: based on the fusion condition of the plant station equipment and other models, designing boundary cutting definition of the plant station model, wherein the boundary cutting definition specifically comprises the following steps:

The boundary table includes the following information: comprising the following information: (1) device or line name; (2) the subsystem or region to which it belongs; (3) an operational state; (4) voltage class or rated voltage; (5) an operating parameter; (6) connection relation.

Referring to fig. 3, it is assumed that one power system includes two subsystems, namely, a system a and a system B, wherein the system a includes three substations, A1, A2, A3, respectively, and the system B includes two substations, B1, B2, respectively. The five substations are connected with each other through a transmission line, and meanwhile, the system A and the system B are also connected with each other through a boundary line. Based on the rules and examples described above, one skilled in the art will recognize that a boundary table may be prepared.

In step 3 of this embodiment: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

The substation model request interface includes the following information:

Taking real-time model requests as an example, a substation model request interface may 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 a real-time model, the request scope is a single Device (i.e., device 1), and the request parameters include the timestamp and the measurement points (i.e., voltage and Current) of the request.

The master station model issuing interface comprises the following information:

Taking real-time model issuing as an example, a master station model issuing interface 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 a real-time model, the delivery range is the entire Substation (i.e., substation 1), and the delivery parameters include the timestamp and the delivered measurement points (i.e., voltage and Current).

In step 4 of the present embodiment: referring to fig. 4, based on the boundary cutting definition of the plant station model in the step 2, the boundary of the substation model is found, the substation model in the system is compared with the model in the master station, and the model information required to be updated by the master station is calculated;

Updating the model information in the master station includes:

generator and load, etc., device information such as device type, name, location, capacity, status, etc.

The topology information of the power grid, such as connection relation, switch state, operation parameters and the like of equipment such as lines, transformers, switches, isolating switches and the like.

The power system operation state 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 plant station in step 1, the master station performs automatic import of a point table according to the model matching mapping, and the specific process is as follows:

In step 6 of this embodiment: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

the data checking means that the transmitted data is subjected to abnormal judgment such as jump, limit crossing, reasonable value crossing and the like, and the operations such as alarming, resetting and the like are carried out according to the judgment result;

In step 7:

the station control equipment and auxiliary equipment generally refer to equipment related to control and monitoring in the power system, including a switch controller, a protective relay, a telemetering and telecommand terminal, communication equipment and the like, and the equipment plays an important role in the operation and maintenance of the power system and needs to be imported into a master station CIM model for management.

Analyzing the characteristics of the devices, expanding non-power devices in a CIM model, and adding necessary attributes so as to realize the access of station control devices and auxiliary devices, wherein the specific steps comprise:

(1) Extending the CIM model: to support non-powered devices, new categories need to be added to the CIM model. For example, a new category, such as "auxiliary device", may be created to store information about the auxiliary device;

(2) Defining attributes: for each new category, a corresponding attribute needs to be defined, such as the attribute of the name, model, position, state, etc. of the auxiliary equipment;

(3) Establishing an association relation: in order to relate the auxiliary equipment to other equipment of the power system, a corresponding association relationship needs to be established. For example, the auxiliary device may establish an association with the corresponding switching device;

(4) Importing data: and importing information of the station control equipment and the auxiliary equipment into the CIM model. Device information may be imported into the CIM model, typically using XML or CSV formats.

In step 7 of this embodiment:

referring to fig. 6, the master station establishes a device attribute data table based on the collected service information, and forms a device topological relation information table by performing topological relation association between attribute data and space data of devices corresponding to the device attribute data table and the device space data table, so as to construct a power grid topological relation;

The embodiment provides an automatic fusion maintenance device for a power grid equipment model, which comprises the following modules:

boundary module: setting boundary cutting definition of a plant station model;

And a mapping module: based on an IEC61970 standard model, determining the mapping of a master station and a plant station, and when the difference exists between a master station CIM model and a plant station SCL model, adjusting the model and then mapping;

When the master station CIM model and the plant station SCL model are different, the method for adjusting the model comprises the following steps:

Boundary module: based on the fusion condition of the plant station equipment and other models, designing boundary cutting definition of the plant station model, wherein the boundary cutting definition specifically comprises the following steps:

In the interaction module: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

The substation model request interface includes the following information:

the master station model issuing interface comprises the following information:

The substation model importing module is used for: based on the boundary cutting definition of the plant station model in the boundary module, finding the boundary of the substation model, comparing the substation model with the model in the master station in the system, and calculating the model information required to be updated by the master station;

Updating the model information in the master station includes: (1) equipment information such as a generator and a load; (2) grid topology information; (3) power system operation state information.

Preferably, the point table is imported into the module: based on the mapping between the master station and the plant stations in the mapping module, the master station performs automatic import of the point table according to the model matching mapping, and the specific process is as follows:

In the acceptance module: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

Between the acceptance module and the topology module: and adding a non-power equipment import module, analyzing the characteristics of the non-power equipment, and expanding the non-power equipment in the CIM model so as to realize the access of the station control equipment and the auxiliary equipment.

(1) Extending the CIM model: adding a new category in the CIM model;

Topology module:

The embodiment provides a computer device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein when the processor executes the computer program, the computer device is based on the automatic fusion maintenance method of the power grid device model.

There is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is based on the above-described power grid equipment model automatic fusion maintenance method.

In this embodiment, mapping between a master station and a plant is determined through an IEC61970 standard model, boundary cutting definition of the plant model is designed according to fusion conditions of plant equipment and other models, the master station performs sub-station model import and automatic import of a point table according to sub-station model boundary and model matching mapping, then other station control equipment and auxiliary equipment are mixed in an extended definition mode, a topological relation is generated according to accessed equipment attribute information and space information, and finally verification analysis of the topological relation is performed, so that automatic import maintenance of the plant equipment is realized, and model maintenance efficiency of a transformer substation and a centralized control station is improved. And related computing devices and storage media are provided.

The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.

Claims

1. An automatic fusion maintenance method for a power grid equipment model is characterized by comprising the following steps:

step 2: setting boundary cutting definition of a plant station model;

2. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 1: based on an IEC61970 standard model, determining the mapping of a master station and a plant station, and when the difference exists between a master station CIM model and a plant station SCL model, adjusting the model and then mapping;

wherein the mapping further comprises: analyzing the structure of an IED model in a substation SCL model and the logical nodes and common data types of substation motion communication, establishing a mapping relation between the IED model and a master station CIM model, mapping the logical nodes to subclasses of various devices respectively, and analyzing naming rules of the types and data attributes of the logical nodes so as to obtain the mapping relation between the data attributes and the 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 master station CIM model and the plant station SCL model, the method for adjusting the model comprises:

4. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 2: based on fusion conditions of the plant station equipment and other models, designing boundary cutting definition of the plant station model:

5. The method for automatic fusion maintenance of a power grid equipment model according to claim 4, wherein the boundary table comprises the following information: (1) device or line name; (2) the subsystem or region to which it belongs; (3) an operational state; (4) voltage class or rated voltage; (5) an operating parameter; (6) connection relation.

6. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 3: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

7. The method for automatic fusion maintenance of a power grid equipment model according to claim 6, wherein the substation model request interface comprises the following information:

(2) Request model scope: the model range used to specify the substation request may be a single device, a group of devices, or the entire substation;

(3) Request parameters: the detailed parameters used for specifying the substation request model can be a request time stamp and a requested measuring point;

the master station model issuing interface comprises the following information:

(3) Issuing parameters: the detailed parameters used for specifying the master station to issue the model can be an issue time stamp and an issued measuring point.

8. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 4: based on the boundary cutting definition of the plant station model in the step 2, finding the boundary of the substation model, comparing the substation model with the model in the master station in the system, and calculating the model information required to be updated by the master station;

Further comprises: judging whether the updated information contains boundary information, if so, updating the corresponding boundary information in the substation model, otherwise, updating the master station model information, thereby realizing automatic import of the substation model.

9. The method for automatic fusion maintenance of a power grid equipment model according to claim 8, wherein updating the model information in the master station comprises: (1) generator and load device information; (2) grid topology information; (3) power system operation state information.

10. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 5: based on the mapping between the master station and the plant stations in the step 1, the master station performs automatic import of the point table according to the model matching mapping, and further comprises the following steps:

if the point table returned by the master station is empty, the substation creates a new point table and sends the new point table to the master station for storage;

11. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 6: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

12. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein between the step 6 and the step 7, the steps of introducing the station control equipment and the auxiliary equipment are added, the characteristics of the equipment are analyzed, and the non-power equipment is expanded in the CIM model, so that the access of the station control equipment and the auxiliary equipment is realized.

13. The method for automatically fusing and maintaining a model of a power network equipment as recited in claim 12, wherein the specific steps of introducing the plant and the auxiliary equipment comprise:

(1) Extending the CIM model: adding a new category in the CIM model;

14. The automatic fusion maintenance method of a power grid equipment model according to claim 1, wherein in the step 7:

15. The automatic fusion maintenance device for the power grid equipment model is characterized by comprising the following modules:

boundary module: setting boundary cutting definition of a plant station model;

16. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the mapping module: based on an IEC61970 standard model, determining the mapping of a master station and a plant station, and when the difference exists between a master station CIM model and a plant station SCL model, adjusting the model and then mapping;

17. The automatic fusion maintenance device for a power grid equipment model according to claim 16, wherein when there is a difference between the master CIM model and the plant SCL model, the method for adjusting the model comprises:

18. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the boundary module comprises: based on fusion conditions of the plant station equipment and other models, designing boundary cutting definition of the plant station model:

19. The automatic fusion maintenance device of a power grid equipment model of claim 18, wherein the boundary table includes the following information: (1) device or line name; (2) the subsystem or region to which it belongs; (3) an operational state; (4) voltage class or rated voltage; (5) an operating parameter; (6) connection relation.

20. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the interaction module is configured to: based on service call of the main station and sub station integrated system, respectively deploying corresponding integrated cooperative service in the dispatching main station and the sub station, and establishing a wide area service bus suitable for a power real-time monitoring environment between the main station and the sub station, so as to perform main station and sub station integrated service interaction;

21. The automatic fusion maintenance device of a power grid equipment model of claim 20, wherein the substation model request interface includes the following information:

the master station model issuing interface comprises the following information:

22. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the substation model importing module is: based on the boundary cutting definition of the plant station model in the boundary module, finding the boundary of the substation model, comparing the substation model with the model in the master station in the system, and calculating the model information required to be updated by the master station;

23. The power grid equipment model automatic fusion maintenance device of claim 22, wherein updating model information in the master station comprises: (1) equipment information such as a generator and a load; (2) grid topology information; (3) power system operation state information.

24. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the point table importing module is: based on the mapping between the master station and the plant stations in the mapping module, the master station performs automatic import of the point table according to the model matching mapping, and the method further comprises the following steps:

25. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the acceptance module is characterized in that: under the condition that the data of the model and the point table are consistent, based on a transparent retrieval technology of the integration of the main station and the sub station, the information transmission, the data check and the acceptance of the transmission of equipment of the monitoring point between the main station and the sub station are carried out;

26. The automatic fusion maintenance device for the power grid equipment model according to claim 15, wherein a non-power equipment import module is added between the acceptance module and the topology module, the characteristics of the non-power equipment are analyzed, and the non-power equipment is expanded in the CIM model, so that access of the station control equipment and the auxiliary equipment is realized.

27. An automatic fusion maintenance device for a power grid plant model according to claim 26, wherein the specific steps of introducing the plant and the auxiliary equipment comprise:

(1) Extending the CIM model: adding a new category in the CIM model;

28. The automatic fusion maintenance device for a power grid equipment model according to claim 15, wherein the topology module is configured to:

29. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the computer program, is based on the method for automatic fusion maintenance of a power grid device model according to any one of claims 1-14.

30. A computer readable storage medium having stored thereon a computer program, which when executed by a processor is based on the electrical grid device model automatic fusion maintenance method according to any of claims 1-14.