CN114596384A

CN114596384A - Intelligent substation virtual and real circuit diagram display method and system

Info

Publication number: CN114596384A
Application number: CN202210222372.3A
Authority: CN
Inventors: 赵传刚; 徐海峰; 张宗保; 夏丽霞
Original assignee: Shandong Shanda Electric Power Technology Co ltd
Current assignee: Shandong Shanda Electric Power Technology Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-06-07

Abstract

The invention discloses a method and a system for displaying virtual and real circuit diagrams of an intelligent substation, wherein the method comprises the following steps: selecting central equipment and acquiring information of the central equipment; based on the virtual terminal information in the SCD, finding out all peripheral equipment related to the central equipment, wherein each peripheral equipment is used as a sub item of a sitting object; for each peripheral device, determining a receiving signal and a transmitting signal thereof, and taking the signal information as a sub item of each peripheral device; generating json files from the central equipment information and the peripheral equipment information, and constructing a virtual-real circuit diagram data model; and generating an html file in a drawing mode based on the data model, and displaying the virtual and real circuit diagram of the intelligent substation. In order to adapt to the change of the SCD file, the method divides the initialization generation model, the static graph generation and the static graph display into three independent processes, thereby solving the problem of flexible adaptation.

Description

Intelligent substation virtual and real circuit diagram display method and system

Technical Field

The invention relates to the technical field of secondary visualization of intelligent substations, in particular to a method and a system for displaying a virtual and real circuit diagram of an intelligent substation.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The intelligent fault recording device can be deployed at a substation end of a transformer substation and integrates functions of fault recording, network recording analysis, secondary equipment state monitoring and the like. The secondary system visualization function in the secondary equipment state monitoring can realize functions of secondary equipment state online monitoring, secondary virtual circuit online monitoring, process layer optical fiber circuit online monitoring, secondary circuit fault intelligent diagnosis and the like based on the SCD file, so that a virtual and real circuit diagram is abstracted to be used for displaying the composition, ports, optical fiber states, logic link states and the like of virtual and real circuits related to the secondary equipment, and fault positioning can be assisted.

At the present stage, certain achievements have been obtained for the display and fault diagnosis of the process-level virtual circuit, but the research and achievements on the combination of the virtual circuit and the real circuit are few, and especially the relationship between the virtual connections abstracted from the optical fiber real circuit and the real circuit among the secondary devices lacks an effective model structure, and when the SCD file changes, flexible adaptation cannot be performed, and a static graph required by the display of the virtual circuit diagram and the real circuit diagram cannot be generated.

Disclosure of Invention

In order to solve the problems, the invention provides a method and a system for displaying a virtual-real circuit diagram of an intelligent substation.

In some embodiments, the following technical scheme is adopted:

a method for displaying a virtual and real circuit diagram of an intelligent substation comprises the following steps:

selecting central equipment and acquiring information of the central equipment;

based on the virtual terminal information in the SCD, finding out all peripheral equipment related to the central equipment, wherein each peripheral equipment is used as a sub item of a sitting object;

for each peripheral device, determining a receiving signal and a transmitting signal thereof, and taking the signal information as a sub item of each peripheral device;

generating json files from the central equipment information and the peripheral equipment information, and constructing a virtual-real circuit diagram data model;

and generating an html file in a drawing mode based on the data model, and displaying the virtual and real circuit diagram of the intelligent substation.

As a further scheme, the central device is defined as a main object and at least comprises the following information: IED name, description information, hard platen information of system configuration, and scheduling name information of the central device.

As a further scheme, each peripheral device serves as a sub-item of the sitting object; each sub-item includes at least the following information: equipment IED name, scheduling name, description, hard platen information, received signals, and transmitted signals.

As a further scheme, each sub item of the peripheral device comprises a plurality of signal objects, and each signal object comprises a sending port, a receiving port, a signal type, a fiber name, an APPID, virtual connection information and switch information.

As a further scheme, the report control block information is taken out according to the index address in the input signal, and the signal type is judged; extracting the APPID according to the report control block information, wherein each signal takes the APPID as a unit; each signal comprises a plurality of pieces of virtual connection information, APPID of the virtual connection information is the same, and the virtual connection information is acquired by a related virtual terminal in the SCD; acquiring a receiving port number based on the associated virtual terminal, and determining virtual connection description according to the index address; and acquiring actual connection information between the receiving equipment and the sending equipment by the receiving equipment, the receiving port number and the sending equipment.

As a further scheme, the acquiring actual connection information between the receiving device and the sending device specifically includes:

finding out all subnets in the SCD file, and finding out all Connect AP information aiming at each subnet;

traversing each item of Connect AP information, traversing all PhysConn nodes in the Connect AP if the name of the idName of a certain item of information is the same as that of the receiving device ied, and taking out Cable information in PhysConn when the number of the Port in a certain node is the same as that of the receiving Port;

dividing a local side ied, a local side port, an opposite side ied and an opposite side port according to Cable information, judging whether the opposite side ied is the same as the transmitted receiving equipment after division is finished, and if the opposite side ied is the same as the transmitted receiving equipment, respectively exchanging the divided local side ied and the divided opposite side ied, and the local side port and the opposite side port to enable the receiving equipment to be the same as the exchanged local side ied;

then judging whether the sending equipment is the same as the opposite side ied after the exchange, if so, directly taking out the port number of the sending equipment to form a real connection; if not, judging whether the opposite side equipment is the switch or not, if so, continuing recursive search according to the opposite side ied, the opposite side port number and the ied of the sending end until the port number of the sending equipment is searched, and forming a real connection.

As a further scheme, based on the data model, an html file is generated in a drawing mode to realize the display of the virtual and real circuit diagram of the intelligent substation, and the method specifically comprises the following steps:

drawing central equipment information; determining the position relation between the peripheral equipment and the central equipment according to the number of the peripheral equipment subitems contained in the sitting object in the data model; drawing each peripheral device based on the position relation;

respectively drawing sub items of the transmitting signals and the receiving signals of each peripheral device to form connection between the central device and the peripheral devices; and finishing the drawing of the static graph of the virtual-real loop diagram until all the peripheral equipment and the central equipment are connected.

As a further scheme, respectively drawing the sub-items of the transmitted signal and the received signal of each peripheral device specifically includes:

drawing a signal connection relation between the peripheral equipment and the central equipment based on the transmitting signal or the receiving signal and the position relation between the peripheral equipment and the central equipment;

when each virtual connection of each signal is drawn, judging whether a pressing plate exists or not, if so, reserving the space of the pressing plate, and drawing the pressing plate after the drawing of the virtual connection is finished;

after each group of signals are drawn, determining real loop information according to the receiving port, the sending port and the virtual connection information, and drawing the ports and the real loops;

and after the virtual connection and the real loop are drawn, if the switch information exists, drawing the switch information.

In other embodiments, the following technical solutions are adopted:

a virtual and real circuit diagram display system of an intelligent substation comprises:

the central equipment information acquisition module is used for selecting central equipment and acquiring the information of the central equipment;

the peripheral equipment information acquisition module is used for finding out all peripheral equipment related to the central equipment based on the virtual terminal information in the SCD, and each peripheral equipment is used as a sub item of the sitting object; for each peripheral device, determining a receiving signal and a transmitting signal thereof, and taking the signal information as a sub item of each peripheral device;

the virtual-real circuit diagram data model building module is used for generating json files from the central equipment information and the peripheral equipment information and building a virtual-real circuit diagram data model;

and the data model display module is used for generating an html file in a drawing mode based on the data model so as to display the virtual and real circuit diagram of the intelligent substation.

In other embodiments, the following technical solutions are adopted:

a terminal device comprising a processor and a memory, the processor being arranged to implement instructions; the memory is used for storing a plurality of instructions, and the instructions are suitable for being loaded by the processor and executing the intelligent substation virtual-real circuit diagram display method.

Compared with the prior art, the invention has the beneficial effects that:

(1) in order to adapt to the change of the SCD file, the method divides the initialization generation model, the static graph generation and the static graph display into three independent processes, thereby solving the problem of flexible adaptation.

(2) When the system is initialized, the initialization process generates data model files of all secondary equipment according to the SCD files and stores the data model files in a system hard disk, the static graph generation process selects the secondary equipment to be displayed according to the display process, and the static graph is generated through the model files of the secondary equipment and is used for the display process to display the corresponding virtual and real loop diagrams.

(3) Compared with the conventional method for simultaneously obtaining the related information during the display, the display method saves the time of data organization, accelerates the display speed and improves the experience.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a diagram of a data model structure of a virtual-real circuit diagram according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of data model generation and graph display data flow according to an embodiment of the present invention.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Interpretation of terms:

ConnectAP is the device access point node in the SCD file.

ied: the intelligent electronic device, IEC61850 standard, is defined for IEDs as follows: "consists of one or more processors with any device that receives and transmits data from or controls an external source, i.e. an electronic multifunction meter, microcomputer protection, controller, an entity capable of performing one or more logical contact tasks within the limits of the interface under certain circumstances". The invention refers to various devices such as protection, measurement and control, acquisition execution units and the like in a transformer substation, and the devices are abstracted into ied iedName, namely device names or identifiers in an SCD file.

PhysConn: the information node is physically connected to the SCD file, and generally includes information such as a port and an optical fiber.

Port: port information in PhysConn and Cable information.

APPID: a unique identifier of the signal.

Example one

In one or more embodiments, a virtual and real circuit diagram display method for an intelligent substation is disclosed, which mainly comprises the steps of constructing a virtual and real circuit diagram data model and a graph display part;

the virtual-real circuit diagram data model construction part takes a certain device as a central device, is defined as a main object and comprises IED names and description information of the central device, and hard pressure plate information and scheduling name information configured by the system. And finding out all peripheral equipment related to the central equipment according to the virtual terminal information in the SCD. Finding out the receiving signal and the sending signal of each peripheral device, and determining the virtual and real connection information according to the signal information, wherein the virtual and real connection information comprises a sending port, a receiving port, a signal type, an optical fiber name, an APPID, virtual connection information and switch information. And generating a model file in a json format from the information of the central equipment and the peripheral equipment.

The specific process is as follows:

step (1): selecting central equipment and acquiring information of the central equipment;

in this embodiment, a certain device is taken as a central device, and is defined as a main object, which includes IED names and description information of the central device, and hard platen information and scheduling name information of system configuration.

Step (2): based on the virtual terminal information in the SCD, finding out all peripheral equipment related to the central equipment, wherein each peripheral equipment is used as a sub item of a sitting object;

in this embodiment, all peripheral devices having a virtual connection relationship with the central device are found out through sv and goose virtual terminals configured in the SCD, where the peripheral devices include a device to which a signal sent by the central device arrives and a source device to which the central signal receives the signal, and are represented by a sitting object, each peripheral device is a sub-item of the sitting object, and each sub-item includes a device IED name, a scheduling name, a description, hard platen information, a received signal, and a sent signal.

And (3): for each peripheral device, determining a receiving signal and a transmitting signal thereof, and taking the signal information as a sub item of each peripheral device;

in this embodiment, taking a certain peripheral device as an example, all signals sent by the peripheral device, that is, all input signals of the central device, are found and used as the sub-items signals of the peripheral device object in the model. The sub-items signals comprise a plurality of signal objects, and each signal object comprises a sending port, a receiving port, a signal type, an optical fiber name, an APPID, virtual connection information and switch information.

The report control block information is extracted from the index address in the input signal, and whether the signal is a goose signal or an sv signal, that is, the signal type is determined. The APPID is extracted from the report control block information, and each signal is in the unit of APPID. A plurality of pieces of virtual connection information APPID are identical in one signal and are acquired by the associated virtual terminal in the SCD. The associated virtual terminal is composed of the port number and the index address of the signal receiving device, so that the receiving port number can be obtained, and the virtual connection description can be found out according to the index address.

In this embodiment, when the signal is transmitted from the peripheral device to the central device, the central device is a receiving device, and the peripheral device is a transmitting device; conversely, when the signal is transmitted from the central device to the peripheral device, the central device is the transmitting device and the peripheral device is the receiving device.

Actual connection information between the receiving device and the sending device is acquired by the receiving device (central device), the receiving port number and the sending device. Specifically, the step of searching the real connection information between the two devices is as follows:

finding out all subnets in an SCD file, finding out all connection AP information for each subnet, traversing each connection AP information, if the name of iedName is the same as that of a receiving device Ied, traversing all PhysConn nodes in the connection AP, when the number of the Port in PhysConn is the same as that of the receiving Port, taking out Cable information in PhysConn (as the Port and Cable information in the original SCD file may be empty values, the SCD file is configured by a configuration tool, the configured Cable information has the formats of a device A Ied name, a device A Port number, a device B Ied name, a device B Port number, such as P _ L2211A:1-A, MIL2211A:1-A), segmenting a local side Ied, a local side Port, an opposite side Ied and a Port according to the Cable information, judging whether Ied is the same as the incoming receiving device or not, if the local side Ied and the opposite side are the same, respectively, and segmenting the local side Ied according to the Cable information, and judging whether Ied is the incoming receiving device, The opposite side ied, the home side port, the opposite side port, makes the receiving device the same as the switched home side ied. Then, whether the sending device is the same as the opposite side ied after switching is judged, if so, the port number of the sending device can be directly taken out to form a real connection, such as P _ L2211A:1-A and MIL2211A: 1-A. If the two devices are different, it is indicated that a switch may exist between the sending device and the receiving device, and whether the opposite side device is the switch is judged, if the opposite side device is the switch, the recursive search is continued according to the opposite side ied, the opposite side port number and the ied of the sending terminal until the port number of the sending device is searched, so as to form a real connection, such as:

P_L2211A:1-A,SWW0001X:1,SWW0001X:3,MIl2211A:1-A。

in this embodiment, the format of Cable information is: device a Ied name: device a port number, device B ied name: device B port numbers, such as P _ L2211A:1-A, MIL2211A: 1-B;

since one fiber connects two devices, the fiber number can be as above, or it can be MIL2211A:1-B, P _ L2211A: 1-a; therefore, the temperature of the molten steel is controlled,

when the fiber format is the first case, the device on the side is P _ L2211A, and the device on the opposite side is MIL 2211A.

When the fiber format is the second case, the device on the side is MIL2211A and the device on the opposite side is P _ L2211A.

Because of these two situations, it is not easy to distinguish which one is receiving and which is transmitting, the switching between the own side ied and the opposite side ied and the switching between the own side port and the opposite side port are performed, so that the own side ied after switching is the same as the receiving device.

According to the found real connection information, the port number of the sending terminal can be obtained, because the virtual-real circuit diagram is abstractly displayed by the virtual-real connection relation between two pieces of non-switch equipment, the name of the optical fiber in the signal object is represented by the name of the sending terminal ied: sender port number, receiver ied name: the port number of the receiving end is named in a form.

Considering the situation of direct connection between non-switch devices, the switch connection relation is abstracted into a part of a real loop, and is represented by a switch object in a signal, and the switch may have cascade connection, so that the switch object comprises a plurality of switch objects. If there is a first-level switch, the switch object includes a switch 1, which has ied name, description, and connection information attributes, where the connection information includes connection information 1 in the form of an organization including a sending-end device port and a switch 1 port 1, and connection information 2 in the form of an organization including a switch 1 port 2 and a receiving-end device port. If there are two-stage switches, the switch object includes two switches, switch 1 includes ied name, description, and connection information attribute, where the connection information includes connection information 1 in the form of organization of the sending end device port and switch 1 port 1, connection information 2 in the form of switch 1 port 2 and switch 2 port 1, and connection information 3 in the form of organization of switch 2 port 2 and receiving end device port. And so on.

Taking a certain peripheral device as an example, the received signal of the peripheral device object, i.e. all the input signals of the peripheral device, is found out and used as the sub-term receive _ signals of the peripheral device object in the model. The sub-term receive _ signals contains a plurality of signal objects, and signals sub-terms in step 3 are synchronized. The method for obtaining attributes such as signal type, APPID, receiving port number, virtual connection description, actual connection information, switch information, etc. is the same as step 3, except that when the actual connection information is obtained, the receiving device becomes a peripheral device, and the receiving port number becomes a port number of the peripheral device.

And executing the above process for all the peripheral equipment to complete all the peripheral equipment subitems of the sitting object.

And (4): generating json files from the central equipment information and the peripheral equipment information, and constructing a virtual-real circuit diagram data model;

and after the information of the central equipment and all the peripheral equipment is obtained, generating a json file, and finishing the establishment of the data model.

The process of the graphical presentation part is as follows:

and generating an html file in a drawing mode on the basis of the model json file, so as to display the virtual and real circuit diagram of the intelligent substation. Including the rendering center device, its ied name, description, scheduling nomenclature, and hard platen information. And drawing the peripheral equipment, determining the left and right arrangement conditions of the peripheral equipment in the central equipment, and drawing ied the name, description, scheduling name and hard pressing plate information for each peripheral equipment. And drawing the connection relation between the central equipment and each peripheral equipment, firstly drawing virtual connection information represented by the sending signal and the receiving signal, drawing pressing plate information after the virtual connection information is finished, then drawing a port and a real loop, and finally drawing related information of the switchboard.

The method specifically comprises the following steps:

step (1): and drawing a central device, namely a main object in the data model. The rectangle is used as the bottom, ied names, ied descriptions and scheduling names are drawn in sequence on the upper part, and hard pressing plates are arranged in sequence on the lower part.

Step (2): and drawing peripheral equipment, namely the sitting object in the data model. A central device may have a plurality of peripheral devices, and parity is taken according to the number of peripheral device sub-items contained in the sitting object in the data model, the peripheral devices represented by odd sub-items are arranged on the right side of the central device, and the peripheral devices represented by even sub-items are arranged on the right side of the central device. The name of ied, the description of ied, and the scheduling designation of each peripheral device are drawn, and the hard platens are arranged in sequence below.

And (3): the connection between the central device and the peripheral devices is drawn. Firstly, drawing a signal, namely a signals sub-item in a peripheral equipment sub-item in the model; and then drawing a received signal, namely a receive _ signals sub-item in a peripheral equipment sub-item in the model. Wherein the steps of plotting each signal are as follows:

step (3.1) first determines whether to send or receive a signal. If the signal is a sending signal, the peripheral equipment sends the signal to the central equipment. Judging whether the peripheral equipment is arranged on the left side or the right side of the central equipment, if so, judging that the direction of the drawn signal is the signal sent to the central equipment by the peripheral equipment on the left side, namely, from left to middle; if it is the right side, the direction of the signal is plotted as the signal sent by the right peripheral device to the central device, i.e. right to center. If the signal is a received signal, the central equipment sends the signal to the peripheral equipment. Then judging whether the peripheral equipment is arranged on the left side or the right side of the central equipment, if the peripheral equipment is arranged on the left side, the direction of the drawn signal is a signal sent to the peripheral equipment by the central equipment, namely from the center to the left; if it is the right side, the direction of the signal being plotted is the signal sent by the central device to the right-side peripheral device, i.e. center to right.

And (3.2) judging whether a pressing plate exists or not when each virtual connection of each signal is drawn, if so, reserving the space of the pressing plate, and drawing the pressing plate after the virtual connection drawing is finished.

And (3.3) after each group of signals are drawn, determining real loop information according to the receiving port, the sending port and the virtual connection information, and drawing the ports and the real loops.

And (3.4) after the virtual connection and the real loop are drawn, if the switch information exists, drawing the switch information.

And (4): and 3, performing step 3 on each peripheral device until all the peripheral devices are connected with the central device, finishing the drawing of the static graph of the virtual-real loop diagram, and generating an html file.

FIG. 1 is a diagram of a data model of a virtual-real circuit diagram. The data model structure mainly comprises a central device and a peripheral device. The central equipment data model is composed of IED name, description, scheduling naming and hard pressure plate information. The peripheral equipment data model consists of IED name, description, scheduling name, hard pressure plate information, sending signal, receiving signal and exchanger information.

According to the data model provided in fig. 1, virtual connection information, port information, real connection information, switch information, platen information and the like between the central device and each peripheral device are drawn according to a certain rule by using a drawing mode of SVG, and an html file is generated.

FIG. 2 is a schematic diagram of data model generation and graphical display data flow. And the initialization process generates data model files of all secondary equipment, namely json files, by analyzing the SCD files. When the interface requests the virtual-real circuit diagram of a certain device, the display process sends the device name information to the graph generation process, the graph generation process finds out the model file of the device, and generates an html file for the display process to display on a relevant page.

Example two

In one or more embodiments, disclosed is an intelligent substation virtual-real circuit diagram display system, including:

It should be noted that, the specific implementation of each module described above has been described in detail in the first embodiment, and is not described in detail again.

EXAMPLE III

In one or more embodiments, a terminal device is disclosed, which includes a server, where the server includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method for displaying a virtual-real circuit diagram of an intelligent substation in the first embodiment. For brevity, no further description is provided herein.

It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A method for displaying a virtual and real circuit diagram of an intelligent substation is characterized by comprising the following steps:

selecting central equipment and acquiring information of the central equipment;

2. The method for displaying the virtual-real circuit diagram of the intelligent substation of claim 1, wherein the central device is defined as a main object and at least comprises the following information: IED name, description information, hard platen information of system configuration, and scheduling name information of the central device.

3. The method for displaying the virtual-real circuit diagram of the intelligent substation according to claim 1, wherein each peripheral device is used as a sub-item of a sitting object; each sub-item includes at least the following information: device IED name, scheduling name, description, hard platen information, received signals, and transmitted signals.

4. The method for displaying the virtual-real circuit diagram of the intelligent substation of claim 1, wherein the sub-item of each peripheral device comprises a plurality of signal objects, and each signal object comprises a sending port, a receiving port, a signal type, a fiber name, an APPID, virtual connection information and switch information.

5. The method for displaying the virtual-real circuit diagram of the intelligent substation according to claim 4, wherein the report control block information is extracted according to the index address in the input signal, and the signal type is judged; extracting the APPID according to the report control block information, wherein each signal takes the APPID as a unit; each signal comprises a plurality of pieces of virtual connection information, APPID of the virtual connection information is the same, and the virtual connection information is acquired by a related virtual terminal in the SCD; acquiring a receiving port number based on the associated virtual terminal, and determining virtual connection description according to the index address; and acquiring actual connection information between the receiving equipment and the sending equipment by the receiving equipment, the receiving port number and the sending equipment.

6. The method for displaying the virtual-real circuit diagram of the intelligent substation according to claim 5, wherein actual-real connection information between the receiving device and the sending device is obtained, and the specific process includes:

traversing each item of Connect AP information, if the name of the IEdname of a certain item of information is the same as that of the receiving equipment ied, traversing all PhysConn nodes in the Connect AP, and when the Port in a certain node is the same as the number of the receiving Port, taking out the Cable information in the PhysConn;

7. The method for displaying the virtual and real circuit diagram of the intelligent substation according to claim 1, wherein html files are generated in a drawing mode based on the data model, so that the virtual and real circuit diagram of the intelligent substation is displayed, and the method specifically comprises the following steps:

8. The method for displaying the virtual-real circuit diagram of the intelligent substation according to claim 7, wherein the step of respectively drawing the sub-items of the transmitting signal and the receiving signal of each peripheral device specifically comprises:

9. The utility model provides an intelligent substation virtual reality circuit diagram display system which characterized in that includes:

the peripheral equipment information acquisition module is used for finding out all peripheral equipment related to the central equipment based on the virtual terminal information in the SCD, and each peripheral equipment is used as a subitem of the sitting object; for each peripheral device, determining a receiving signal and a transmitting signal thereof, and taking the signal information as a sub item of each peripheral device;

10. A terminal device comprising a processor and a memory, the processor being arranged to implement instructions; the memory is used for storing a plurality of instructions, and the instructions are suitable for being loaded by the processor and executing the intelligent substation virtual-real circuit diagram display method of any one of claims 1 to 8.