Method for visualizing switch and patch panel ieds based on scd files

Abstract

The application provides a switch and distribution frame IED visualization method based on an SCD file, and the method comprises the following steps: introducing the IED model of the switch and the distribution frame by expanding the description in the SCD file, customizing the logical node class such as NPTD, and realizing the detailed information recording of the IED physical port. Meanwhile, by modifying the SCD file structure, the association description of the secondary physical circuit between the IEDs is increased, and a plurality of PhyConn attributes of the IED are increased, so that the intuitive connection between the secondary virtual circuit and the secondary physical circuit is established. The method can accurately show the communication path between the IEDs in the smart substation, including the connection of the switch and the distribution frame, and solves the problem that the IED model in the prior art cannot meet the operation and maintenance needs when describing the virtual circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent substation, in particular, to a switch and distribution frame IED visualization method and device based on SCD file, computer readable storage medium and intelligent substation. BACKGROUND

[0002] With the perfection of intelligent substation, IEC61850 standard is widely used, which defines the protocol and model of all device data in substation, defines the IED device model, mainly including logical device, logical node, data object and data attribute.

[0003] The IED model is a model describing the logical components and functions of IED, and the IED model includes data model and behavior model. The description object of IED model is usually: process layer device, bay layer device, station control layer device and communication service between process layer, bay layer and station control layer.

[0004] Due to the complexity of intelligent substation, the model data of substation is huge, the number of IED models is extremely large, and there is complex data association and logical relationship between IED models, and the reliability of IED model depends on the integrity of data, and the integrity of model information of IED in substation directly affects the normal operation of intelligent substation. For the visualization of IED model in the prior art, the secondary virtual circuit is mainly displayed through the visualization tool, and the display of the secondary physical circuit cannot be realized. Intelligent substation adds a large number of switches and distribution frames in the process layer to realize the network sampling and network jump function, but the switch and distribution frame are not defined as IED, resulting in that part of the SCD file tree structure lacks the description of the switch and distribution frame, that is, the description of the secondary physical circuit and physical terminal, resulting in that the secondary virtual circuit visualization method, software and tool have poor effect in realizing the complete visualization of the secondary circuit. SUMMARY

[0005] The main purpose of the present application is to provide a switch and distribution frame IED visualization method and device based on SCD file, computer readable storage medium and intelligent substation, so as to at least solve the problem that the IED model in the prior art cannot describe the virtual circuit to meet the operation and maintenance needs.

[0006] In order to achieve the above object, according to one aspect of the present application, a method for visualizing switch and patch panel IED based on SCD file is provided, comprising: constructing logical devices based on IEC61850 standard to describe performance parameters, port information and communication data statistics of the switch and patch panel, to obtain a target IED model of the switch and patch panel; adding physical port information of the target IED model, first description information of secondary physical loop between each target IED model and association information between secondary virtual loop and secondary physical loop in the SCD file based on the target IED model, and adding second description information of corresponding PhyConn attribute in the SCD file based on each target IED model, to obtain a target SCD file; visualizing and displaying based on the target SCD file through IED view and interval view.

[0007] Optionally, constructing logical devices based on IEC61850 standard to describe performance parameters, port information and communication data statistics of the switch and patch panel, to obtain a preliminary IED model; converting the preliminary IED model into a hierarchical model based on description objects of the preliminary IED model, to obtain a target IED model.

[0008] Optionally, decomposing functions of the switch and patch panel based on IEC61850 standard, to obtain first logical devices for describing different functions; configuring data objects of each first logical device and attributes corresponding to the data objects, to obtain second logical devices; configuring data sets, input information, output information and message formats required for data interaction between each second logical device, to obtain third logical devices; constructing corresponding ACSI interfaces based on data interaction relationships between each third logical device, to obtain corresponding abstract communication service models to simulate access and control between each third logical device; mapping each abstract communication service model to a corresponding communication protocol based on SCSM, to obtain a preliminary IED model.

[0009] Optionally, determining a part of the preliminary IED model description object as a first layer of the target IED model as a physical device, the physical device being used to represent an actual device; determining a part of the preliminary IED model description object as a second layer of the target IED model as a logical device, the logical device being used to represent a function of the physical device, at least including protection, measurement and control and recording and broadcasting; determining a part of the preliminary IED model description object as a third layer of the target IED model as a logical node, the logical node being used to represent a limitation description of the logical device, at least including ground distance protection; determining a part of the preliminary IED model description object as a fourth layer of the target IED model as a data object, the data object being used to represent a limitation description of the logical node, at least including protection starting; and determining a part of the preliminary IED model description object as a fifth layer of the target IED model as a data attribute, the data attribute being used to represent a limitation description of the data object, at least including whether to trigger a corresponding action.

[0010] Optionally, one logical device comprises at least one logical node and one physical device.

[0011] Optionally, a logical node type of the corresponding logical node is determined based on the target IED model; in a case where the logical node type is port information, the logical device is instantiated as a common logical device for the logical node in the target IED model, so as to realize physical port information description of the IED model, the physical port information comprising port name, port medium and port state; first description information is added in the target IED model, the first description information being used for describing the target IED model and a secondary physical loop between the target IED model associated with the target IED model.

[0012] Optionally, the physical port information is added in an intAddr attribute of a secondary virtual loop part in the SCD file, so as to realize association between the secondary virtual loop and the secondary physical loop; a PhyConn attribute is added in the SCD file for each target IED model in the secondary virtual loop part, the PhyConn attribute being used for describing the port name, the port medium and the port state in the physical port information.

[0013] According to another aspect of the present application, a device for visualizing switch and patch panel IEDs based on an SCD file is provided, the device comprising: a first construction unit configured to construct logical devices based on an IEC61850 standard to describe performance parameters, port information and communication data statistics of the switch and the patch panel, so as to obtain a target IED model of the switch and the patch panel; a first processing unit configured to add, based on the target IED model, physical port information of the target IED model, first description information of a secondary physical loop between each target IED model, and association information between a secondary virtual loop and the secondary physical loop in an SCD file, and add, based on each target IED model, second description information of a corresponding PhyConn attribute, so as to obtain a target SCD file; and a display unit configured to visually display based on the target SCD file through an IED view and a bay view.

[0014] According to still another aspect of the present application, a computer readable storage medium is provided, the computer readable storage medium comprising a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform any of the methods.

[0015] According to yet another aspect of the present application, a smart substation is provided, comprising one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise instructions for performing any of the methods.

[0016] By applying the technical solution of the present application, the scheme of the present application realizes comprehensive description and visual management of these devices in the intelligent substation by integrating the functions and performance parameters of the switches and the distribution frames into the SCD file, greatly improving the operation and maintenance efficiency and safety of the secondary system of the substation. Specifically, by constructing the target IED model, the actual state and performance of the switches and the distribution frames can be accurately reflected, making the physical connection and data flow of the secondary system clear and visible, facilitating fault troubleshooting and system optimization. In addition, by adding physical port information, secondary physical loop description information and virtual-real loop association information in the SCD file, the practicability and information integrity of the SCD file are further enhanced, providing strong support for the automated operation and maintenance of the intelligent substation. Through the above scheme, the secondary system management of the intelligent substation will be more intuitive and efficient, and the operation and maintenance personnel can quickly locate network problems, reduce fault recovery time, and improve the operation reliability of the entire substation. Moreover, the scheme is not only suitable for the daily operation and maintenance of the intelligent substation, but also has important significance for the expansion, reconstruction and fault analysis of the substation, which helps to realize intelligent and fine management of the intelligent substation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 shows a flowchart of a visualization method of a switch and distribution frame IED based on an SCD file according to an embodiment of the present application;

[0018] Figure 2 Fig. 2 shows a schematic diagram of an IED model structure according to an embodiment of the present application;

[0019] Figure 3 Fig. 3 shows a schematic diagram of an IED view according to an embodiment of the present application;

[0020] Figure 4 Fig. 4 shows a schematic diagram of a bay view according to an embodiment of the present application;

[0021] Figure 5 Fig. 5 shows a schematic diagram of a hierarchical model structure according to an embodiment of the present application;

[0022] Figure 6 Fig. 6 shows a structural block diagram of a visualization device of a switch and distribution frame IED based on an SCD file according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] As introduced in the background, the existing switch and distribution frame are not defined as IED, resulting in a lack of description of the switch and distribution frame in the SCD file tree structure, i.e., the description of the secondary physical circuit and the physical terminal, resulting in a poor effect of the secondary virtual circuit visualization method, software and tool in realizing the complete visualization of the secondary circuit. To solve the problem that the existing IED model intelligent description of the virtual circuit cannot meet the operation and maintenance needs, the embodiments of the present application provide a visualization method, device, computer readable storage medium and intelligent substation of the switch and distribution frame IED based on the SCD file.

[0027] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0028] In the present embodiment, a visualization method of the switch and distribution frame IED based on the SCD file running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0029] Figure 1 is a flowchart of the visualization method of the switch and distribution frame IED based on the SCD file according to the embodiments of the present application. As shown in Figure 1 the method comprises the following steps:

[0030] Step S201, constructing logical devices based on IEC61850 standard to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, obtaining the target IED model of the switch and the patch panel;

[0031] Specifically, according to the object-oriented and layered model characteristics of IEC61850 standard, the switch and the patch panel are decomposed into the logical devices for description, each of the logical devices includes at least one logical node, by introducing NSWP (switch basic performance parameters), NPTD (port information), NSAP (port communication data statistics) and NSAG (port communication data total statistics) logical nodes in the model, the four logical nodes are respectively used to describe the basic parameters of the switch, the detailed information of the port, the communication data statistics of the port and the overall communication condition of the port. By instantiating these logical nodes, the physical port, the communication state and other key parameters of the switch and the patch panel can be accurately described. In an embodiment, the structure of the target IED model is as shown in Figure 2 .

[0032] Step S202, based on the target IED model, adding the physical port information of the target IED model, the first description information of the secondary physical loop between each of the target IED models and the association information between the secondary virtual loop and the secondary physical loop in the SCD file, and adding the second description information of the corresponding PhyConn attribute in the SCD file based on each of the target IED models, obtaining the target SCD file;

[0033] Specifically, after obtaining the target IED model, the SCD file is modified and extended as necessary to accommodate the description of the switch and the patch panel.

[0034] In specific implementation, first, the physical port information adding is performed, including: instantiating NPTD logical node in the SCD file for each switch and patch panel IED, for describing the information of its physical port, including port name, port medium, port state, etc. Then, the first description information adding of the secondary physical loop is performed, including: in the SCD file, instantiating NSWP logical node for each switch IED, for describing the basic performance parameters of the switch, including the number of ports, the type of ports, the maximum transmission rate of ports, etc. <inputs>The secondary physical circuit description between the target IED models is added, i.e., the connection information between the IEDs through the physical ports. Then, the association information between the secondary virtual circuit and the secondary physical circuit is added, including: the association between the virtual and physical circuits is achieved by adding the physical port description to the secondary virtual circuit part of the IED receiving data. This step is usually performed in the IED modeler. <inputs>Under the label, by <extref>The physical port information is added in the intAddr attribute of the element. Finally, the second description information of the PhyConn attribute is added: in the PhyConn attribute of the IED <connectedap>Part, based on the target IED model, add multiple PhyConn attributes of each IED, including port media type, name, type and other information, to ensure that the IED message control block is associated with a specific physical port.

[0035] Step S203, based on the above target SCD file, visualization is performed through IED view and interval view.

[0036] Specifically, after modifying the SCD file, the target SCD file is loaded by using the visualization software, and the IED view and interval view are automatically generated. These views clearly show the association of the secondary physical loop and the virtual-real loop of the smart substation, and provide intuitive troubleshooting and safety measure implementation approaches for the operation and maintenance personnel.

[0037] The above scheme of the present application will be described below in conjunction with specific embodiments:

[0038] Taking the 500kV I bus of a smart substation as an example, the specific steps are as follows:

[0039] Target IED model construction: the target IED model is established for the switch of the substation and the distribution frame, including instantiating NSWP, NPTD, NSAP and NSAG logical nodes, describing their performance parameters and port information.

[0040] SCD file modification: add the above logical nodes in the SCD file to describe the physical port information of the switch and the distribution frame, and the connection relationship of the secondary physical loop between IEDs. At the same time, in the PhyConn attribute of each IED, the port information is added to ensure that the IED message control block is associated with a specific physical port. <inputs>and <connectedap>Part of the added associated information, ensure the mapping of virtual and real circuit.

[0041] Visual display: import the modified SCD file into the visualization software to generate IED view and interval view. As shown in Figure 3 The connection relationship between the mother difference protection PM5001A and other IED devices is clearly displayed, including the physical connection path through the switch and the patch panel. Figure 4 Then the detailed presentation of the 500kV I interval, including all IED, patch panel and switch between the connection, and the intuitive association of virtual and real circuit.

[0042] The visualization of the secondary physical circuit and virtual and real circuit of the smart substation is realized, which greatly improves the operation and maintenance efficiency, provides an intuitive tool for fault diagnosis and safety measures, so that the operation and maintenance personnel of the smart substation can more intuitively understand the configuration and state of the network equipment, effectively improving the fault troubleshooting efficiency, especially in complex network environment, this visualization method can help the operation and maintenance personnel to quickly locate the problem, reduce downtime, and improve the operation stability of the substation.

[0043] Through the embodiment, the functions and performance parameters of the switch and the patch panel are integrated into the SCD file, realizing the comprehensive description and visualization management of these devices in the smart substation, greatly improving the operation and maintenance efficiency and safety of the secondary system of the substation. Specifically, by constructing the target IED model, the actual state and performance of the switch and the patch panel can be accurately reflected, making the physical connection and data flow of the secondary system clear and visible, facilitating fault troubleshooting and system optimization. In addition, by adding physical port information, secondary physical circuit description information and virtual and real circuit association information in the SCD file, the practicality and information integrity of the SCD file are further enhanced, providing strong support for the automated operation and maintenance of the smart substation. Through the above scheme, the secondary system management of the smart substation will be more intuitive and efficient, and the operation and maintenance personnel can quickly locate network problems, reduce fault recovery time, and improve the operation reliability of the entire substation. And the scheme is not only suitable for the daily operation and maintenance of the smart substation, but also has important significance for the expansion, reconstruction and fault analysis of the substation, which helps to realize the intelligent and fine management of the smart substation.

[0044] In order to construct the above target IED model, in an optional embodiment, the above step S201 includes:

[0045] Step S2011, constructing a logical device based on IEC61850 standard to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, obtaining a preliminary IED model;

[0046] Specifically, based on the object-oriented modeling principles in the IEC61850 standard, key logical nodes are defined to constitute the logical device described above to describe the characteristics of the switch and patch panel. For example, NSWP (switch basic performance parameters), NPTD (port information), NSAP (port communication data statistics), and NSAG (total port communication data statistics). By instantiating these logical nodes, a preliminary IED model of the switch and patch panel, i.e., a preliminary IED model, is initially constructed. Each logical node covers a specific description object, such as NSWP describing the basic performance of the switch, NPTD describing the detailed information of the port, etc.

[0047] Step S2012, based on the description objects of the preliminary IED model, the preliminary IED model is converted into a hierarchical model to obtain the target IED model described above.

[0048] Specifically, on the basis of the preliminary IED model, it is further converted into a hierarchical model to meet the hierarchical structure requirements of the IEC61850 standard. This conversion involves organizing the description objects according to the hierarchical relationship to ensure the generality and uniformity of the model. For example, the functions of the switch and patch panel are described as logical devices (LD), and then logical nodes (LN) such as NPTD are instantiated in the logical devices to describe the attributes of each physical port. In addition, a common logical device LD0 is defined for the switch and patch panel, and all port information and communication statistics logical nodes are instantiated into LD0. Through this series of steps, the target IED model is finally formed, which not only describes the physical characteristics of the device, but also covers the communication relationship between devices.

[0049] The above scheme of the present application will be described in conjunction with specific embodiments as follows:

[0050] Taking a 500kV intelligent substation switch SWI as an example, the specific implementation steps are as follows:

[0051] The preliminary IED model is first constructed based on the IEC61850 standard, and the basic performance parameters of the switch (NSWP), port information (NPTD), port communication data statistics (NSAP), and total port communication data statistics (NSAG) are defined. These logical nodes are instantiated to construct the preliminary IED model of the switch.

[0052] The target IED model is converted next, and a hierarchical model is constructed, which specifically includes:

[0053] The functions of the switch SWI are decomposed into logical devices LD, such as LD0 representing a common logical device. In the LD0, NPTD logical nodes are instantiated to describe the performance parameters of each port, such as port number, port type, port state, etc. NSAP and NSAG logical nodes are instantiated for statistical and monitoring communication data of the port. Through the above steps, the target IED model describing the switch SWI is obtained, which clearly describes the performance parameters, port information and communication data statistics of the switch, laying a foundation for subsequent SCD file modification and visual display.

[0054] Through the present application, the physical characteristics of the switch and the patch panel and their roles in the intelligent substation communication network can be accurately described in the SCD file, which not only improves the readability and understandability of the SCD file, but also provides strong support for the visualization of the secondary physical circuit of the intelligent substation. The embodiments show how to convert the preliminary IED model of the switch into the target IED model, which is a key step for subsequent full visualization.

[0055] In order to construct the above-mentioned preliminary IED model, in an optional embodiment, the above-mentioned step S2011 comprises:

[0056] Step S20111, decomposing the functions of the above-mentioned switch and the above-mentioned patch panel based on the above-mentioned IEC61850 standard to obtain first logical devices for describing different functions;

[0057] Specifically, the first logical device construction decomposes the functions of the switch and the patch panel based on the IEC61850 standard, for example, decomposes different functions of the switch such as port monitoring, data statistics, performance parameters into independent logical devices LD. This step ensures that each function is described by a corresponding logical device.

[0058] Step S20112, configuring data objects of each of the above-mentioned first logical devices and attributes corresponding to the above-mentioned data objects to obtain second logical devices;

[0059] Specifically, the second logical device configuration further configures data objects DO and their attributes based on the first logical device, such as configuring the port information NPTD logical node, which contains the attributes of the data objects such as port number, port type, port state. This step refines the function description and ensures the accuracy of the model.

[0060] Step S20113, configuring data sets, input information, output information and message formats required for data interaction between each of the above-mentioned second logical devices to obtain third logical devices;

[0061] Specifically, the third logical device is formed, configured with data objects and attributes, and defines data sets DS, input information ExtRef, output information DO and message formats required for data interaction. These constitute the third logical device, i.e. the logical node that completely describes the implementation of the functions of the switch and the patch panel.

[0062] Step S20114, based on the data interaction relationship between each of the above third logical devices, the corresponding ACSI interface is constructed, and the corresponding abstract communication service model is obtained to simulate the access and control between each of the above third logical devices;

[0063] Specifically, the abstract communication service model is constructed, based on the data interaction relationship between the third logical devices, the ACSI (abstract communication service interface) interface is constructed, and the abstract communication service model is formed. This model provides a basis for simulating the access and control between the third logical devices and ensures that the communication function of the IED model conforms to the IEC61850 standard.

[0064] Step S20115, based on SCSM, each of the above abstract communication service models is mapped to the corresponding communication protocol, and the above preliminary IED model is obtained.

[0065] Specifically, the preliminary IED model is generated, and through SCSM (specific communication service mapping), the abstract communication service model is mapped to a specific communication protocol such as MMS, GOOSE or SV, and finally the preliminary IED model describing the functions of the switch and the patch panel is obtained.

[0066] The above scheme of the present application will be described below in combination with specific embodiments:

[0067] Taking a switch SWI in a certain intelligent substation as an example, the specific implementation steps are as follows:

[0068] First logical device construction: the functions of the switch SWI are decomposed into performance parameters, port monitoring and data statistics, etc. as first logical devices.

[0069] Second logical device configuration: define NSWP logical nodes in the performance parameter logical device; define NPTD logical nodes in the port monitoring logical device to describe the physical attributes of the ports; define NSAP and NSAG logical nodes in the data statistics logical device for data statistics.

[0070] Third logical device formation: configure specific data objects and attributes for each logical device, such as defining port number, port type and port state, etc. DO in NPTD.

[0071] Abstract communication service model construction: based on the data interaction relationship between the third logical devices, the ACSI interface is constructed to ensure that the switch SWI can communicate with other IEDs through the standard IEC61850 communication service.

[0072] Preparation of IED model generation: through SCSM, the ACSI interface is mapped to a specific communication protocol, such as MMS, and finally a description of the switch SWI is obtained. The preparation IED model.

[0073] Through the above steps, the preparation IED model of the switch SWI is successfully constructed, which not only describes the physical port information and communication data statistics of the switch, but also ensures the communication compatibility with other IEDs in the smart substation through the ACSI interface and SCSM mapping, providing a solid foundation for subsequent SCD file modification and secondary circuit visualization. The embodiment shows how to build the preparation IED model of the switch from function decomposition to communication protocol mapping, which is the key to realizing the comprehensive visualization of the smart substation.

[0074] In order to construct the above hierarchical model, in an optional embodiment, the above step S2012 comprises:

[0075] Step S20121, determining the part of the above preparation IED model describing the physical device as the first layer of the above target IED model, the physical device being used to represent the actual device;

[0076] Specifically, the first layer, the physical device (PHD) layer, is used to represent the actual device, such as the switch and the patch panel. This layer ensures that the model can be directly associated with the specific equipment in the substation.

[0077] Step S20122, determining the part of the above preparation IED model describing the logical device as the second layer of the above target IED model, the logical device being used to represent the function of the above physical device, at least including protection, measurement and control, and recording;

[0078] Specifically, the second layer, the logical device (LD) layer, is used to represent the function of the physical device, such as protection, measurement and control, and recording. This layer decomposes the complex function of the device into easy-to-manage components.

[0079] Step S20123, determining the part of the above preparation IED model describing the logical node as the third layer of the above target IED model, the logical node being used to represent the limit description of the above logical device, at least including the ground distance protection.

[0080] Specifically, the third layer, Logical Node (LN) layer, is used to describe the specific functions of the logical device, such as ground distance protection. This layer refines the function description, enabling the model to accurately correspond to the specific functions of the device.

[0081] Step S20124, determine the part of the preliminary IED model whose description object is a data object as the fourth layer of the target IED model, and the data object is used to represent the limit description of the logical node, at least including protection start;

[0082] Specifically, the fourth layer: Data Object (DO) layer, is used to describe the data and control functions of the logical node, such as the indication of protection start. This is the detailed level of the model, ensuring accurate description of data and control instructions.

[0083] Step S20125, determine the part of the preliminary IED model whose description object is a data attribute as the fifth layer of the target IED model, and the data attribute is used to represent the limit description of the data object, at least including whether to trigger the corresponding action.

[0084] Specifically, the fifth layer, Data Attribute (DA) layer, is used to specifically describe the characteristics of the data object, such as whether the protection start triggers. This layer is the bottom layer of the model, providing specific values and state information of the data.

[0085] The above scheme of the present application will be described below in conjunction with specific embodiments, such as Figure 5

[0086] Take the switch SWI in a 500kV intelligent substation as an example to illustrate how to convert its preliminary IED model into a layered model:

[0087] The first layer (PHD layer): the switch SWI is regarded as a physical device, i.e. the object of the PHD layer, which actually exists in the substation and has a physical location and hardware configuration.

[0088] The second layer (LD layer): on the basis of the PHD layer, the functions of the switch SWI are abstracted as logical devices LD. For example, there can be LD0 as a public logical device, used to describe general information such as device identification, manufacturer, etc.; there is also LD1, used to describe the port monitoring function of the switch SWI; and LD2, used to describe the communication data statistics function.

[0089] The third layer (LN layer): on the basis of the LD layer, the function description is further refined. For example, in LD1, the NPTD logical node is instantiated to describe the specific information of each port, such as port number, port type, port state, etc.

[0090] ​The fourth layer (DO layer): on the basis of the LN layer, a data object DO is defined. For example, in the NPTD logical node, a PtNum data object is defined to describe the port number, a PtMed data object is defined to describe the port medium type, and a PtSt data object is defined to describe the port state.

[0091] The fifth layer (DA layer): on the basis of the DO layer, a data attribute DA is defined. For example, the PtNum data object includes a stVal data attribute, which is used to specifically describe the numerical value of the port number.

[0092] Through the above steps, the preliminary IED model of the switch SWI is converted into a clear hierarchical model, which is clear in hierarchy from the actual device to the specific function, and then to the specific data and state, facilitating understanding and maintenance. This conversion process ensures the generality and consistency of the model, and provides a standardized structural basis for subsequent addition of physical port information, secondary physical circuit description and PhyConn attribute description in the SCD file. The embodiment shows how to convert the preliminary IED model of the switch SWI into a hierarchical model, which is an important step in realizing the visualization of the functions and communications of the smart substation equipment. Not only does it improve the information density of the SCD file, but also provides a multi-level description and control for the network equipment of the smart substation, so that the operation and maintenance personnel can more finely manage the network equipment, effectively prevent and handle potential network failures, and ensure the long-term stable operation of the substation.

[0093] In one embodiment, the above-mentioned logical device in the above-mentioned embodiment at least includes one logical node and one physical device.

[0094] It can be understood that the logical device (LD) is composed of: in the IEC61850 standard system, the logical device (LD) is the basic unit for describing the functions and services of the intelligent electronic device (IED). A logical device at least includes one logical node (LN) and one physical device (PHD). The logical node is used to describe the specific function of the device, and the physical device is used to represent the actually existing hardware entity. This structural design ensures that the model can not only reflect the physical attributes of the device, but also accurately describe its functions and services.

[0095] Further, a logical node (LN): Each LN represents a specific function or service in the LD. For example, LN can be a protection function, a measurement function, a control function, etc. The LN contains data objects (DOs) that describe data and state information in the LN, such as protection start, action state, etc. Physical device (PHD): PHD describes the actual hardware device, which is the physical carrier of the LD. It contains physical information of the device, such as device identification, location information, hardware configuration, etc. Logical device (LD): LD combines LN and PHD to form an abstract model that corresponds to the function and physical entity. An LD contains at least one LN and one PHD, but can contain multiple LN to describe multiple functions of the device.

[0096] Take the switch SWI in a certain intelligent substation as an example to illustrate how to build a logical device model containing logical nodes and physical devices:

[0097] Physical device (PHD): First, define the physical device information of the switch SWI, including device name, manufacturer, model, serial number, etc. These information constitutes the PHD layer of the switch SWI, which is used to represent the actual hardware entity.

[0098] Logical node (LN): Then, according to the function of the switch SWI, multiple logical nodes are defined. For example, define NSWP logical node to describe the basic performance parameters of the switch, define NPTD logical node to describe the port information, and define NSAP logical node to describe the port communication data statistics. These LN constitute the function description of the switch SWI.

[0099] Logical device (LD): Then, create a logical device LD0 in the model of the switch SWI, which contains NPTD, NSAP, etc. logical nodes, and LPHD logical node representing the physical information of the device. LD0 is the logical device of the switch SWI, which contains at least one LPHD and one NPTD, but can contain more logical nodes to describe the comprehensive function of the switch SWI.

[0100] The specific implementation details are as follows:

[0101] LPHD: instantiated as SWI_LPHD, describes the physical information of the switch SWI, such as device name, manufacturer, model, etc.

[0102] NPTD: instantiated as SWI_NPTD1, SWI_NPTD2, etc., describes the port information of the switch SWI, and each port corresponds to an NPTD instance.

[0103] NSAP: instantiated as SWI_NSAP, describes the port communication data statistics information of the switch SWI.

[0104] These LN and PHD are organized in a logical device LD0, forming a hierarchical model, LD0 being the target IED model of the switch SWI.

[0105] Through the above construction process, it is ensured that the IED model of the switch SWI contains both its physical characteristics and detailed descriptions of its functions and services, providing accurate information structure for the modification of the SCD file and the visualization of the secondary circuit. The embodiment specifically shows how to construct a logical device based on the IEC61850 standard to reflect the physical and functional characteristics of the switch, which is a key step to realize the comprehensive description of the intelligent substation equipment.

[0106] In order to add the physical port information and the first description information in the above SCD file, in an optional embodiment, the above step S202 includes:

[0107] Step S2021, determining the logical node type of the corresponding logical node based on the above target IED model;

[0108] Specifically, determining the logical node type includes: first, based on the constructed target IED model (i.e. the IED model of the switch and the patch panel), determining the logical node type related to the physical port information. In the present application, the NPTD (port information) logical node is used to describe the characteristics of the physical port.

[0109] Step S2022, in the case where the logical node type is port information, instantiating the logical node in the above target IED model as a common logical device to the above logical node, to realize the description of the physical port information of the above IED model, the physical port information including port name, port medium and port state;

[0110] Specifically, instantiating the logical node includes: next, in the target IED model, instantiating the NPTD logical node as a common logical device (LD0). By instantiating NPTD, the description of the physical port information (such as port name, port medium, port state) of the IED model can be realized, and these information is crucial for understanding the physical connection of the IED.

[0111] Step S2023, adding the first description information in the above target IED model, the first description information being used to describe the above target IED model and the secondary physical circuit associated with the above target IED model.

[0112] Specifically, adding the first description information of the secondary physical circuit includes: in the target IED model, adding the first description information of the secondary physical circuit by adding the following information in the SCD file: <inputs>partial addition <extref>The element implements the addition of the first description information of the secondary physical circuit between IEDs. <extref>The element associates the physical ports of two IED models, and describes the details of the physical connection between the IEDs, including connection path, port state and other information.

[0113] The above scheme of the present application will be described below in combination with specific embodiments:

[0114] Take the switch SWI in a certain 500kV intelligent substation as an example, and the specific description is as follows:

[0115] Determining the logical node type: determining the NPTD logical node type is used to describe the physical port information of the switch.

[0116] Instantiating the logical node: in the target IED model of the switch SWI, the NPTD logical node is instantiated into the common logical device LD0, and the physical port is described, such as the port name Port1, the port medium type 100BaseT, the port state Active and the like.

[0117] Adding the first description information: in the target IED model of the switch SWI, the first description information is added to the NPTD logical node through the <inputs>partial addition <extref>Elements, describing the secondary physical circuit between the switch SWI and other IED devices. For example, <extref>Element can describe the physical connection between the port Portl of the switch SWI and the port Port2 of the distribution frame ODF, including the path of the connection, the current state of the ports, and other information.

[0118] Through the above implementation, the SCD file not only contains the physical port information of the switch SWI, but also describes the secondary physical circuit between the switch SWI and other IED devices, thereby realizing comprehensive description of the secondary physical circuit of the entire smart substation. This step significantly improves the readability and practicability of the SCD file, and provides more intuitive troubleshooting and safety management tools for the operation and maintenance personnel.

[0119] The embodiments show how to add the physical port information of the switch SWI and the secondary physical circuit description in the SCD file, which is a key step to realize the visualization of the secondary physical circuit of the smart substation and the visualization of the virtual-actual circuit association. By instantiating the NPTD logical node and adding <extref>The elements ensure accurate description of the secondary physical circuit and provide necessary information support for subsequent generation of IED view and interval view.

[0120] To add the association information between the secondary virtual circuit and the secondary physical circuit and the second description information in the SCD file, in an optional embodiment, the step S202 further includes:

[0121] In the intAddr attribute of the secondary virtual circuit part in the SCD file, the physical port information is added to realize the association between the secondary virtual circuit and the secondary physical circuit.

[0122] In the smart substation, the SCD file is a core file for describing the entire substation secondary device configuration and communication relationship. The application proposes to add the association information between the target IED model and the secondary circuit (including the secondary virtual circuit and the secondary physical circuit) in the SCD file and the description of the PhyConn attribute to realize complete visualization of the secondary circuit.

[0123] Specifically, adding the association information in the SCD file includes: in the SCD file, the description of the secondary virtual circuit part usually involves data interaction between IEDs, such as transmission and reception of GOOSE or SV messages. In order to associate the secondary virtual circuit with the secondary physical circuit (i.e. the physical connection between IEDs), it is necessary to add the association information between the secondary virtual circuit and the secondary physical circuit in the intAddr attribute of the secondary virtual circuit part in the SCD file. <inputs>The physical port information is added in the intAddr attribute of the part. This step ensures that the logically described data interaction matches the actual physical connection path, thereby realizing the association between the secondary virtual loop and the secondary physical loop.

[0124] In step S2025, the PhyConn attribute is added to each target IED model in the secondary virtual loop part in the SCD file. The PhyConn attribute is used to describe the port name, port medium, and port state in the physical port information.

[0125] Specifically, the second description information of the added PhyConn attribute includes: next, the PhyConn attribute needs to be added to the target IED model in the SCD file. The PhyConn attribute is used to describe the detailed information of the physical port, including the port name, port medium, and port state. By adding the PhyConn attribute and its description information in the secondary virtual loop part, the description of the physical port is further strengthened, and the SCD file can fully reflect the communication capability and actual connection situation of the IED.

[0126] The above scheme of the present application will be described in detail below in conjunction with specific embodiments:

[0127] Taking a line protection device PL in a certain intelligent substation as an example, how to add the association information between the target IED model and the secondary loop in the SCD file is described:

[0128] SCD file modification: first, in the SCD file of the secondary virtual loop part, the intAddr attribute of the part is added to the target IED model. <inputs>Partly, an intAddr attribute is added to the GOOSE or SV message received by the line protection device PL to describe the physical port of the message source. For example, for the GOOSE message received from the switch SWI, an intAddr attribute is added, containing the port information of the switch SWI, such as port number, port medium type, etc., to ensure the clear association between the secondary virtual circuit and the secondary physical circuit.

[0129] PhyConn attribute addition: secondly, a PhyConn attribute is added to the target IED model PL, which describes the specific information of the physical port of the PL device. For example, a PhyConn attribute can be added to describe the fiber port name, port medium (fiber or copper wire), port state, etc. of the PL device. These information are embedded in the corresponding part of the SCD file, such as <connectedap>Under the tag, the association between the physical port of the IED and the communication capability is clear.

[0130] By implementing the above steps, not only the explicit association between the IED model and the secondary physical circuit is established in the SCD file, but also the description of the IED physical port is further enriched through the addition of the PhyConn attribute, so that the SCD file can more comprehensively reflect the secondary circuit configuration of the substation, providing more intuitive and detailed information for the operation and maintenance personnel, supporting the complete visualization and troubleshooting of the secondary circuit of the smart substation. The addition of this attribute not only enhances the description ability of the SCD file, but also provides more accurate positioning and control means for the network equipment of the smart substation, especially in the process of network troubleshooting and system optimization, this attribute can help the operation and maintenance personnel to quickly locate the problem, reduce the fault recovery time, and improve the operation efficiency of the substation.

[0131] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0132] The embodiment of the present application also provides a switch and patch panel IED visualization device based on an SCD file. It should be noted that the switch and patch panel IED visualization device based on an SCD file of the embodiment of the present application can be used to execute the switch and patch panel IED visualization method based on an SCD file provided by the embodiment of the present application. The device is used to realize the above-mentioned embodiments and preferred embodiments, and those which have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware implementation is also possible and contemplated.

[0133] The switch and patch panel IED visualization device based on an SCD file provided by the embodiment of the present application is described below.

[0134] Figure 6 is a structure block diagram of the switch and patch panel IED visualization device based on an SCD file according to the embodiment of the present application. As Figure 6 shown, the device includes:

[0135] The first construction unit 10 is configured to construct a logical device based on the IEC61850 standard to describe the performance parameters, port information and communication data statistics of the switch and patch panel, and obtain the target IED model of the above-mentioned switch and the above-mentioned patch panel.

[0136] Specifically, according to the object-oriented and hierarchical model features of the IEC61850 standard, the switch and the patch panel are described by being decomposed into the logical devices as described above, each of the logical devices includes at least one logical node, and by introducing the NSWP (switch basic performance parameter), the NPTD (port information), the NSAP (port communication data statistics) and the NSAG (port communication data total statistics) logical nodes in the model, the four logical nodes are respectively used for describing the basic parameters of the switch, the detailed information of the port, the communication data statistics of the port and the overall communication condition of the port. By instantiating these logical nodes, the physical port, the communication state and other key parameters of the switch and the patch panel can be accurately described. In an embodiment, the structure of the target IED model is as shown in Figure 2

[0137] The first processing unit 20 is configured to add the physical port information of the target IED model, the first description information of the secondary physical loop between each of the target IED models and the association information between the secondary virtual loop and the secondary physical loop in the SCD file based on the target IED model, and add the second description information of the corresponding PhyConn attribute in the SCD file based on each of the target IED models, to obtain a target SCD file.

[0138] Specifically, after the target IED model is obtained, the SCD file is modified and extended as necessary to accommodate the description of the switch and the patch panel.

[0139] In a specific implementation, first, the physical port information adding is performed, including: instantiating the NPTD logical node in the SCD file for each switch and patch panel IED, for describing the information of the physical port, including the port name, the port medium, the port state and the like. Then, the first description information adding of the secondary physical loop is performed, including: in the SCD file, instantiating the NSWP logical node for each switch IED, for describing the basic performance parameters of the switch, including the number of ports, the port type, the port state and the like. <inputs>The secondary physical circuit description between the target IED models is added, i.e., the connection information between the IEDs through the physical ports. Then, the association information between the secondary virtual circuit and the secondary physical circuit is added, including: the association between the virtual and physical circuits is achieved by adding the physical port description to the secondary virtual circuit part of the IED receiving data. This step is usually performed in the IED modeler. <inputs>Under the label, by <extref>The physical port information is added in the intAddr attribute of the element. Finally, the second description information of the PhyConn attribute is added: in the PhyConn attribute of the IED <connectedap>Part, based on the target IED model, add multiple PhyConn attributes of each IED, including port media type, name, type and other information, to ensure that the IED message control block is associated with a specific physical port.

[0140] Display unit 30, for visualizing the IED view and interval view based on the target SCD file.

[0141] Specifically, after modifying the SCD file, the target SCD file is loaded using visualization software to automatically generate IED view and interval view. These views will clearly show the association of the secondary physical loop and virtual-real loop of the smart substation, providing a direct way for maintenance personnel to troubleshoot and implement safety measures.

[0142] The above scheme of the present application will be described in conjunction with specific embodiments as follows:

[0143] Take the 500kV I bus of a smart substation as an example, the specific steps are as follows:

[0144] Target IED model construction: Establish a target IED model for the switches and patch panels of the substation, including instantiating NSWP, NPTD, NSAP and NSAG logical nodes, describing their performance parameters and port information.

[0145] SCD file modification: Add the above logical nodes in the SCD file to describe the physical port information of the switches and patch panels, as well as the connection relationship between the IEDs. At the same time, in the <inputs>and <connectedap>Part of the added associated information, ensure the mapping of virtual and real circuit.

[0146] Visual display: import the modified SCD file into the visualization software to generate IED view and interval view. As shown in Figure 3 The connection relationship of the mother difference protection PM5001A and other IED devices is clearly displayed, including the physical connection path through the switch and the patch panel. Figure 4 Then the detailed presentation of the 500kV I mother interval, including all IED, patch panel and switch between the connection, and the intuitive association of virtual and real circuit.

[0147] The visualization of the secondary physical circuit and virtual and real circuit of the smart substation is realized, which greatly improves the operation and maintenance efficiency, provides an intuitive tool for fault diagnosis and safety measures, so that the operation and maintenance personnel of the smart substation can more intuitively understand the configuration and state of the network equipment, effectively improving the fault troubleshooting efficiency, especially in complex network environment, this visualization method can help the operation and maintenance personnel to quickly locate the problem, reduce downtime, and improve the operation stability of the substation.

[0148] Through the embodiment, the functions and performance parameters of the switch and the patch panel are integrated into the SCD file, realizing the comprehensive description and visualization management of these devices in the smart substation, greatly improving the operation and maintenance efficiency and safety of the secondary system of the substation. Specifically, by constructing the target IED model, the actual state and performance of the switch and the patch panel can be accurately reflected, making the physical connection and data flow of the secondary system clear and visible, which is convenient for fault troubleshooting and system optimization. In addition, by adding physical port information, secondary physical circuit description information and virtual and real circuit association information in the SCD file, the practicability and information integrity of the SCD file are further enhanced, providing strong support for the automated operation and maintenance of the smart substation. Through the above scheme, the secondary system management of the smart substation will be more intuitive and efficient, the operation and maintenance personnel can quickly locate network problems, reduce fault recovery time, and improve the operation reliability of the entire substation. And the scheme is not only suitable for the daily operation and maintenance of the smart substation, but also has important significance for the expansion, reconstruction and fault analysis of the substation, which is helpful to realize the intelligent and fine management of the smart substation.

[0149] In order to construct the above target IED model, in an optional embodiment, the first construction unit comprises:

[0150] A first construction module is configured to construct a logical device based on the IEC61850 standard to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, and obtain a preliminary IED model.

[0151] Specifically, based on the object-oriented modeling principles in the IEC61850 standard, key logical nodes are defined to constitute the above-mentioned logical device to describe the characteristics of the switch and the patch panel. For example, NSWP (switch basic performance parameters), NPTD (port information), NSAP (port communication data statistics), and NSAG (total port communication data statistics). By instantiating these logical nodes, a preliminary IED model of the switch and the patch panel, i.e., a preliminary IED model, is initially constructed. Each logical node covers a specific description object, such as NSWP describing the basic performance of the switch, NPTD describing the detailed information of the port, etc.

[0152] The second building module is configured to convert the preliminary IED model into a hierarchical model based on the description objects of the preliminary IED model, so as to obtain the target IED model.

[0153] Specifically, on the basis of the preliminary IED model, it is further converted into a hierarchical model to meet the hierarchical structure requirements of the IEC61850 standard. This conversion involves organizing the description objects according to the hierarchical relationship to ensure the generality and uniformity of the model. For example, the functions of the switch and the patch panel are described as logical devices (LD), and then logical nodes (LN) such as NPTD are instantiated in the logical devices to describe the attributes of each physical port. In addition, a common logical device LD0 is defined for the switch and the patch panel, and all port information and communication statistics logical nodes are instantiated into LD0. Through this series of steps, the target IED model is finally formed, which not only describes the physical characteristics of the device, but also covers the communication relationship between devices.

[0154] The above-mentioned solutions of the present application will be described in detail below in combination with specific embodiments:

[0155] Taking a switch SWI of a 500kV intelligent substation as an example, the specific implementation steps are as follows:

[0156] The preliminary IED model is first constructed based on the IEC61850 standard, and logical nodes such as switch basic performance parameters (NSWP), port information (NPTD), port communication data statistics (NSAP), and total port communication data statistics (NSAG) are defined. These logical nodes are instantiated to construct the preliminary IED model of the switch.

[0157] Next, the preliminary IED model is converted to construct a hierarchical model, which specifically includes:

[0158] The functions of the switch SWI are decomposed into logical devices LD, such as LD0 representing a common logical device. In the LD0, NPTD logical nodes are instantiated to describe the performance parameters of each port, such as port number, port type, port state, etc. NSAP and NSAG logical nodes are instantiated for statistical and monitoring communication data of the port. Through the above steps, the target IED model describing the switch SWI is obtained, which clearly describes the performance parameters, port information and communication data statistics of the switch, and lays a foundation for subsequent SCD file modification and visual display.

[0159] Through the present application, the physical characteristics of the switch and the patch panel and their roles in the intelligent substation communication network can be accurately described in the SCD file, which not only improves the readability and understandability of the SCD file, but also provides strong support for the visualization of the secondary physical circuit of the intelligent substation. The embodiments show how to convert the preliminary IED model of the switch into the target IED model, which is a key step for subsequent full visualization.

[0160] In order to construct the above-mentioned preliminary IED model, in an optional embodiment, the above-mentioned first construction module comprises:

[0161] The first construction submodule is configured to decompose the functions of the switch and the patch panel based on the IEC61850 standard to obtain first logical devices for describing different functions;

[0162] Specifically, the first logical device construction is configured to decompose the functions of the switch and the patch panel based on the IEC61850 standard, for example, decomposing different functions of the switch, such as port monitoring, data statistics, performance parameters, into independent logical devices LD. This step ensures that each function is described by a corresponding logical device.

[0163] The second construction submodule is configured to configure data objects of each of the first logical devices and attributes corresponding to the data objects to obtain second logical devices;

[0164] Specifically, the second logical device configuration is configured to further configure data objects DO and their attributes based on the first logical devices, such as configuring the port information NPTD logical node, which contains attributes of data objects such as port number, port type, port state, etc. This step refines the function description and ensures the accuracy of the model.

[0165] The third construction submodule is configured to configure data sets, input information, output information and message formats required for data interaction between each of the second logical devices to obtain third logical devices;

[0166] Specifically, the third logical device forms, after the data objects and attributes are configured, the data set DS, the input information ExtRef, the output information DO and the message format required for data interaction. These constitute the third logical device, i.e. the logical node which completely describes the implementation of the functions of the switch and the patch panel.

[0167] The fourth building sub-module is configured to build the corresponding ACSI interface based on the data interaction relationship between the third logical devices, to obtain the corresponding abstract communication service model, so as to simulate the access and control between the third logical devices.

[0168] Specifically, the abstract communication service model is built based on the data interaction relationship between the third logical devices, and the ACSI (Abstract Communication Service Interface) interface is built, forming the abstract communication service model. This model provides a basis for simulating the access and control between the third logical devices, and ensures that the communication function of the IED model conforms to the IEC61850 standard.

[0169] The fifth building sub-module is configured to map the abstract communication service model to the corresponding communication protocol based on the SCSM, to obtain the preliminary IED model.

[0170] Specifically, the preliminary IED model is generated by mapping the abstract communication service model to a specific communication protocol such as MMS, GOOSE or SV through SCSM (Specific Communication Service Mapping), and finally the preliminary IED model describing the functions of the switch and the patch panel is obtained.

[0171] The above-mentioned solutions of the present application will be described in detail below in combination with specific embodiments:

[0172] Taking a switch SWI in an intelligent substation as an example, the specific implementation steps are as follows:

[0173] The first logical device is built: the functions of the switch SWI are decomposed into the first logical devices such as performance parameters, port monitoring and data statistics.

[0174] The second logical device is configured: the NSWP logical node is defined in the performance parameter logical device; the NPTD logical node is defined in the port monitoring logical device to describe the physical attributes of the port; and the NSAP and NSAG logical nodes are defined in the data statistics logical device for data statistics.

[0175] The third logical device is formed: specific data objects and attributes are configured for each logical device, such as the DO of port number, port type and port state in NPTD.

[0176] Abstract communication service model construction: based on the data interaction relationship between the third logical devices, the ACSI interface is constructed to ensure that the switch SWI can communicate with other IEDs through the standard IEC61850 communication service.

[0177] Preparation of IED model generation: through SCSM, the ACSI interface is mapped to a specific communication protocol, such as MMS, and finally the preparation of IED model describing the switch SWI is obtained.

[0178] Through the above steps, the preparation of IED model describing the switch SWI is successfully constructed, which not only describes the physical port information and communication data statistics of the switch in detail, but also ensures the communication compatibility with other IEDs in the smart substation through ACSI interface and SCSM mapping, providing a solid foundation for subsequent modification of SCD file and secondary circuit visualization. The embodiment shows how to build the preparation of IED model of the switch from function decomposition to communication protocol mapping, which is the key to realize the comprehensive visualization of smart substation.

[0179] In order to construct the above hierarchical model, in an optional embodiment, the second construction module comprises:

[0180] The first determining submodule is configured to determine the part of the preparation of IED model describing the physical device as the first layer of the target IED model, and the physical device is used to represent the actual device.

[0181] Specifically, the first layer, the physical device (PHD) layer, is used to represent the actual device, such as switch and patch panel. This layer ensures that the model can be directly associated with the specific equipment in the substation.

[0182] The second determining submodule is configured to determine the part of the preparation of IED model describing the logical device as the second layer of the target IED model, and the logical device is used to represent the function of the physical device, at least including protection, measurement and control, and recording;

[0183] Specifically, the second layer, the logical device (LD) layer, is used to represent the function of the physical device, such as protection, measurement and control, and recording. This layer decomposes the complex function of the device into easy-to-manage components.

[0184] The third determining submodule is configured to determine the part of the preparation of IED model describing the logical node as the third layer of the target IED model, and the logical node is used to represent the limit description of the logical device, at least including ground distance protection.

[0185] Specifically, the third layer, the logical node (LN) layer, is used to describe the specific functions of the logical device, such as ground distance protection. This layer refines the function description, enabling the model to accurately correspond to the specific functions of the device.

[0186] The fourth determining submodule is configured to determine the part of the preliminary IED model in which the description object is a data object as the fourth layer of the target IED model, and the data object is used to represent the limit description of the logical node, and at least includes protection start;

[0187] Specifically, the fourth layer: the data object (DO) layer, is used to describe the data and control functions of the logical node, such as the indication of protection start. This is the detail level of the model, ensuring accurate description of data and control instructions.

[0188] The fifth determining submodule is configured to determine the part of the preliminary IED model in which the description object is a data attribute as the fifth layer of the target IED model, and the data attribute is used to represent the limit description of the data object, and at least includes whether to trigger the corresponding action.

[0189] Specifically, the fifth layer, the data attribute (DA) layer, is used to specifically describe the characteristics of the data object, such as whether the protection start triggers. This layer is the bottom layer of the model, providing specific values and state information of the data.

[0190] The above-mentioned solutions of the present application will be described below in combination with specific embodiments, such as Figure 5 as shown in the following:

[0191] Taking a switch SWI in a certain 500kV intelligent substation as an example, how to convert its preliminary IED model into a layered model is explained:

[0192] The first layer (PHD layer): the switch SWI is regarded as a physical device, i.e. the object of the PHD layer, which actually exists in the substation and has a physical location and hardware configuration.

[0193] The second layer (LD layer): on the basis of the PHD layer, the functions of the switch SWI are abstracted as logical devices LD. For example, there can be LD0 as a public logical device, used to describe general information such as device identification, manufacturer, etc.; there can also be LD1, used to describe the port monitoring function of the switch SWI; and LD2, used to describe the communication data statistics function.

[0194] The third layer (LN layer): on the basis of the LD layer, the function description is further refined. For example, in LD1, the NPTD logical node is instantiated to describe the specific information of each port, such as port number, port type, port state, etc.

[0195] The fourth layer (DO layer) defines data objects (DOs) based on the LN layer. For example, in the NPTD logical node, the PtNum data object describes the port number, the PtMed describes the port media type, and the PtSt describes the port status.

[0196] The fifth layer (DA layer) defines data attributes (DAs) based on the DO layer. For example, the PtNum data object contains the stVal data attribute, which specifically describes the numerical value of the port number.

[0197] Through the above steps, the preliminary IED model of the switch SWI is converted into a clear hierarchical model, which is clear in hierarchy from the actual device to the specific function, and then to the specific data and state, facilitating understanding and maintenance. This conversion process ensures the generality and consistency of the model, providing a standardized structural basis for subsequent addition of physical port information, secondary physical circuit description, and PhyConn attribute description in the SCD file. The embodiments demonstrate how to convert the preliminary IED model of the switch SWI into a hierarchical model, which is an important step in realizing the visualization of the functions and communications of smart substation equipment. Not only does this process improve the information density of the SCD file, but it also provides multi-level descriptions and controls for network equipment in smart substations, enabling operation and maintenance personnel to manage network equipment more finely, effectively preventing and handling potential network failures, and ensuring the long-term stable operation of substations.

[0198] In one embodiment, the above-mentioned logical device includes at least one logical node and one physical device.

[0199] It can be understood that the logical device (LD) is composed of: in the IEC61850 standard system, the logical device (LD) is the basic unit for describing the functions and services of intelligent electronic devices (IEDs). A logical device includes at least one logical node (LN) and one physical device (PHD). The logical node is used to describe the specific function of the device, while the physical device is used to represent the actual existing hardware entity. This structural design ensures that the model can reflect both the physical properties of the device and accurately describe its functions and services.

[0200] Further, a logical node (LN): Each LN represents a specific function or service in the LD. For example, LN can be a protection function, a measurement function, a control function, etc. LN contains data objects (DO) for describing data and state information in LN, such as protection start, action state, etc. Physical device (PHD): PHD describes the actual hardware device, which is the physical carrier of the LD. It contains physical information of the device, such as device identification, location information, hardware configuration, etc. Logical device (LD): LD combines LN and PHD to form an abstract model corresponding to the function and physical entity. An LD contains at least one LN and one PHD, but can contain multiple LN to describe multiple functions of the device.

[0201] Take the switch SWI in a certain intelligent substation as an example to illustrate how to build a logical device model containing logical nodes and physical devices:

[0202] Physical device (PHD): First, define the physical device information of the switch SWI, including device name, manufacturer, model, serial number, etc. These information constitutes the PHD layer of the switch SWI, which is used to represent the actual hardware entity.

[0203] Logical node (LN): Then, according to the function of the switch SWI, multiple logical nodes are defined. For example, define NSWP logical node to describe the basic performance parameters of the switch, define NPTD logical node to describe the port information, and define NSAP logical node to describe the port communication data statistics. These LN constitute the function description of the switch SWI.

[0204] Logical device (LD): Then, create a logical device LD0 in the model of the switch SWI, which contains NPTD, NSAP, etc. logical nodes, and LPHD logical node representing the physical information of the device. LD0 is the logical device of the switch SWI, which contains at least one LPHD and one NPTD, but can contain more logical nodes to describe the comprehensive function of the switch SWI.

[0205] The specific implementation details are as follows:

[0206] LPHD: instantiated as SWI_LPHD, describing the physical information of the switch SWI, such as device name, manufacturer, model, etc.

[0207] NPTD: instantiated as SWI_NPTD1, SWI_NPTD2, etc., describing the port information of the switch SWI, and each port corresponds to an NPTD instance.

[0208] NSAP: instantiated as SWI_NSAP, describing the port communication data statistics information of the switch SWI.

[0209] These LN and PHD are organized in a logical device LD0, forming a hierarchical model, LD0 being the target IED model of the switch SWI.

[0210] Through the above construction process, it is ensured that the IED model of the switch SWI contains both its physical characteristics and detailed descriptions of its functions and services, providing accurate information structure for the modification of the SCD file and the visualization of the secondary circuit. The embodiment specifically shows how to construct a logical device based on the IEC61850 standard to reflect the physical and functional characteristics of the switch, which is a key step to realize the comprehensive description of the intelligent substation equipment.

[0211] In order to add the physical port information and the first description information in the above SCD file, in an optional embodiment, the above first processing unit comprises:

[0212] A first determining module is configured to determine the logical node type of the corresponding logical node based on the target IED model.

[0213] Specifically, determining the logical node type comprises: first, based on the constructed target IED model (i.e. the IED model of the switch and the patch panel), determining the logical node type related to the physical port information. In the present application, the NPTD (port information) logical node is used to describe the characteristics of the physical port.

[0214] A first processing module is configured to, in the case that the logical node type is port information, instantiate the logical node in the target IED model by taking the logical device as a common logical device, so as to realize the description of the physical port information of the IED model, the physical port information comprising port name, port medium and port state.

[0215] Specifically, instantiating the logical node comprises: next, in the target IED model, instantiating the NPTD logical node by taking the logical device as a common logical device (LD0). By instantiating the NPTD, the description of the physical port information (such as port name, port medium, port state) of the IED model can be realized, and these information is crucial for understanding the physical connection of the IED.

[0216] A second processing module is configured to add the first description information in the target IED model, the first description information being used to describe the target IED model and the secondary physical circuit associated with the target IED model.

[0217] Specifically, adding the first description information of the secondary physical circuit comprises: in the target IED model, adding the first description information of the secondary physical circuit by adding the following information in the SCD file: <inputs>partial addition <extref>The element implements the addition of the first description information of the secondary physical circuit between IEDs. <extref>The element associates the physical ports of two IED models, and describes the details of the physical connection between the IEDs, including connection path, port state and the like.

[0218] The above scheme of the present application will be described below in combination with specific embodiments:

[0219] Take the switch SWI in a certain 500kV intelligent substation as an example, and the specific description is as follows:

[0220] Determine the logical node type: the NPTD logical node type is determined to describe the physical port information of the switch.

[0221] Instantiate the logical node: in the target IED model of the switch SWI, the NPTD logical node is instantiated into the common logical device LD0, and the physical port is described, such as the port name Port1, the port medium type 100BaseT, the port state Active and the like.

[0222] Add the first description information: in the target IED model of the switch SWI, the first description information is added to the NPTD logical node through the <inputs>partial addition <extref>Elements, describing the secondary physical circuit between the switch SWI and other IED devices. For example, <extref>Element can describe the physical connection between the port Portl of the switch SWI and the port Port2 of the distribution frame ODF, including the path of the connection, the current state of the ports, and other information.

[0223] Through the above implementation, the SCD file not only contains the physical port information of the switch SWI, but also describes the secondary physical circuit between the switch SWI and other IED devices, thereby realizing comprehensive description of the secondary physical circuit of the entire smart substation. This step significantly improves the readability and practicability of the SCD file, and provides more intuitive troubleshooting and safety management tools for the operation and maintenance personnel.

[0224] The embodiments show how to add the physical port information of the switch SWI and the secondary physical circuit description in the SCD file, which is a key step to realize the visualization of the secondary physical circuit of the smart substation and the visualization of the virtual-actual circuit association. By instantiating the NPTD logical node and adding <extref>The elements ensure accurate description of the secondary physical circuit and provide necessary information support for subsequent generation of IED view and interval view.

[0225] To add the association information between the secondary virtual circuit and the secondary physical circuit and the second description information in the SCD file, in an optional embodiment, the first processing unit further comprises:

[0226] A third processing module is configured to add the physical port information in the intAddr attribute of the secondary virtual circuit part in the SCD file, so as to realize the association between the secondary virtual circuit and the secondary physical circuit.

[0227] In the smart substation, the SCD file is a core file for describing the configuration and communication relationship of the entire substation secondary equipment. The application proposes to add the association information between the target IED model and the secondary circuit (including the secondary virtual circuit and the secondary physical circuit) in the SCD file, and the description of the PhyConn attribute, so as to realize complete visualization of the secondary circuit.

[0228] Specifically, adding the association information in the SCD file includes: in the SCD file, the description of the secondary virtual circuit part usually involves data interaction between IEDs, such as transmission and reception of GOOSE or SV messages. In order to associate the secondary virtual circuit with the secondary physical circuit (i.e. the physical connection between IEDs), it is necessary to add the association information in the intAddr attribute of the secondary virtual circuit part in the SCD file. <inputs>Add physical port information in the intAddr attribute of the part. This step ensures that the logically described data interaction matches the actual physical connection path, thereby realizing the association between the secondary virtual loop and the secondary physical loop.

[0229] The fourth processing module is configured to add a PhyConn attribute to each target IED model in the secondary virtual loop part in the SCD file, and the PhyConn attribute is used to describe the port name, port medium and port state in the physical port information.

[0230] Specifically, the second description information of adding the PhyConn attribute includes: next, the PhyConn attribute needs to be added to the target IED model in the SCD file. The PhyConn attribute is used to describe the detailed information of the physical port, including the port name, the port medium and the port state. By adding the PhyConn attribute and its description information in the secondary virtual loop part, the description of the physical port is further strengthened, so that the SCD file can fully reflect the communication capability and the actual connection situation of the IED.

[0231] The above scheme of the present application will be described in detail below in combination with specific embodiments:

[0232] Taking a line protection device PL in a certain intelligent substation as an example, how to add the association information between the target IED model and the secondary loop in the SCD file will be described:

[0233] SCD file modification: first, in the SCD file of the secondary virtual loop part of the target IED model, the intAddr attribute is added to the part of the physical port information, and the port name, the port medium and the port state are described in the intAddr attribute. <inputs>Partly, an intAddr attribute is added to the GOOSE or SV message received by the line protection device PL to describe the physical port of the message source. For example, for the GOOSE message received from the switch SWI, an intAddr attribute is added, containing the port information of the switch SWI, such as port number, port medium type, etc., to ensure the clear association between the secondary virtual circuit and the secondary physical circuit.

[0234] PhyConn attribute addition: secondly, a PhyConn attribute is added to the target IED model PL, which describes the specific information of the physical port of the PL device. For example, a PhyConn attribute can be added to describe the fiber port name of the PL device, the port medium (fiber or copper wire), the port state, etc. These information are embedded in the corresponding part of the SCD file, such as <connectedap>Under the tag, the association between the physical port of the IED and the communication capability is clear.

[0235] By implementing the above steps, not only the explicit association between the IED model and the secondary physical circuit in the SCD file is established, but also the description of the IED physical port is further enriched through the addition of the PhyConn attribute, so that the SCD file can more comprehensively reflect the secondary circuit configuration of the substation, providing more intuitive and detailed information for the operation and maintenance personnel, supporting the complete visualization and troubleshooting of the secondary circuit of the smart substation. The addition of this attribute not only enhances the description ability of the SCD file, but also provides more accurate positioning and control means for the network equipment of the smart substation, especially in the process of network troubleshooting and system optimization, this attribute can help the operation and maintenance personnel to quickly locate the problem, reduce the fault recovery time, and improve the operation efficiency of the substation.

[0236] The above-mentioned switch and patch panel IED visualization device based on the SCD file includes a processor and a memory, and the above-mentioned first construction unit, first processing unit and display unit are all stored in the memory as program units, and the corresponding functions are realized by the processor executing the above-mentioned program units stored in the memory. The above-mentioned modules are all located in the same processor; or, the above-mentioned modules are respectively located in different processors in any combination.

[0237] The processor contains a kernel, and the corresponding program unit is called from the memory by the kernel. The kernel can be set to one or more, and the secondary virtual circuit and the secondary physical circuit of the IED model are synchronously displayed by adjusting the kernel parameters.

[0238] The memory can include non-permanent memory in a computer readable medium, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.

[0239] The embodiment of the application provides a computer readable storage medium, and the above-mentioned computer readable storage medium includes a stored program, wherein when the above-mentioned program runs, the device where the above-mentioned computer readable storage medium is located executes the above-mentioned switch and patch panel IED visualization method based on the SCD file.

[0240] The embodiment of the application provides a processor, and the above-mentioned processor is used for running a program, wherein when the above-mentioned program runs, the above-mentioned processor executes the above-mentioned switch and patch panel IED visualization method based on the SCD file.

[0241] The embodiment of the present application provides a smart substation, the smart substation comprising a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, the steps of the method for visualizing the switch and patch panel IED based on the SCD file are implemented.

[0242] The present application also provides a computer program product, when executed on a data processing device, is suitable for executing the program of the steps of the method for visualizing the switch and patch panel IED based on the SCD file.

[0243] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be centralized on a single computing device or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different sequences, or they can be respectively manufactured into individual integrated circuit modules, or multiple modules or steps among them can be manufactured into a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.

[0244] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program codes.

[0245] The present application is described with reference to flowcharts and / or block diagrams according to the method, device (system), and computer program product of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be realized by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce a device for realizing the functions specified in the flowcharts and / or block diagrams. Figure 1 The device for realizing the functions specified in one flow or multiple flows and / or blocks Figure 1 The device for realizing the functions specified in one flow or multiple flows and / or blocks

[0246] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0247] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0248] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0249] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as read only memory (ROM), electrically programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), flash memory, or a combination of non-volatile memories in different forms. The memory is an example of computer readable storage media.

[0250] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), electrically programmable read only memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassettes, magnetic disks storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media, such as modulated data signals and carrier waves.

[0251] It should also be noted that the terms "comprising," "including," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0252] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0253] The SCD file-based visualization method and device of the switch and the distribution frame IED of the present application integrate the functions and performance parameters of the switch and the distribution frame into the SCD file, realizing comprehensive description and visual management of these devices in the smart substation, greatly improving the operation and maintenance efficiency and safety of the substation secondary system. Specifically, by constructing a target IED model, the actual state and performance of the switch and the distribution frame can be accurately reflected, making the physical connection and data flow of the secondary system clear and visible, facilitating fault troubleshooting and system optimization. In addition, by adding physical port information, secondary physical circuit description information, and virtual-real circuit association information in the SCD file, the practicality and information integrity of the SCD file are further enhanced, providing strong support for the automated operation and maintenance of the smart substation. Through the above-mentioned scheme, the secondary system management of the smart substation will be more intuitive and efficient, and the operation and maintenance personnel can quickly locate network problems, reduce fault recovery time, and improve the operation reliability of the entire substation. The scheme is not only suitable for the daily operation and maintenance of the smart substation, but also has important significance for the expansion, reconstruction, and fault analysis of the substation, helping to realize intelligent and fine management of the smart substation.

[0254] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.< / connectedap> < / inputs> < / inputs> < / extref> < / extref> < / extref> < / inputs> < / extref> < / extref> < / inputs> < / connectedap> < / inputs> < / connectedap> < / extref> < / inputs> < / inputs> ​< / connectedap> < / inputs> < / inputs> < / extref> < / extref> < / extref> < / inputs> < / extref> < / extref> < / inputs> < / connectedap> < / inputs> < / connectedap> < / extref> < / inputs> < / inputs>

Claims

1. A method for visualizing a switch and patch panel IED based on SCD files, characterized by, The method comprises the following steps: Based on the IEC61850 standard, logical devices are constructed to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, and a target IED model of the switch and the patch panel is obtained; Based on the target IED model, physical port information of the target IED model, first description information of secondary physical circuits between the target IED models, and association information between secondary virtual circuits and the secondary physical circuits are added in the SCD file, and second description information of corresponding PhyConn attributes of each target IED model is added in the SCD file based on each target IED model, and a target SCD file is obtained; Based on the target SCD file, visualization display is performed through IED view and interval view; Based on the IEC61850 standard, logical devices are constructed to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, and a target IED model of the switch and the patch panel is obtained, comprising: Based on the IEC61850 standard, logical devices are constructed to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, and a preliminary IED model is obtained; Based on the description object of the preliminary IED model, the preliminary IED model is converted into a hierarchical model, and the target IED model is obtained.

2. The method of claim 1, wherein, Based on the IEC61850 standard, logical devices are constructed to describe the performance parameters, port information and communication data statistics of the switch and the patch panel, and a preliminary IED model is obtained, comprising: Based on the IEC61850 standard, the functions of the switch and the patch panel are decomposed to obtain first logical devices for describing different functions; Data objects of each first logical device and attributes corresponding to the data objects are configured to obtain second logical devices; Data sets, input information, output information and message formats required for data interaction between each second logical device are configured to obtain third logical devices; Based on the data interaction relationship between each third logical device, corresponding ACSI interfaces are constructed to obtain corresponding abstract communication service models to simulate access and control between each third logical device; Based on SCSM, each abstract communication service model is mapped to a corresponding communication protocol to obtain the preliminary IED model.

3. The method of claim 1, wherein, The preliminary IED model is converted into a hierarchical model, comprising: The part of the preliminary IED model whose description object is a physical device is determined as the first layer of the target IED model, and the physical device is used to represent an actual device; The part of the preliminary IED model whose description object is a logical device is determined as the second layer of the target IED model, and the logical device is used to represent the function of the physical device, at least including protection, measurement and control and recording and broadcasting; The part of the preliminary IED model whose description object is a logical node is determined as the third layer of the target IED model, and the logical node is used to represent the limitation description of the logical device, at least including ground distance protection; determining a part of the preliminary IED model describing the object as a data object for representing a limit description of the logical node, at least including protection activation, as a fourth layer of the target IED model; determining a part of the preliminary IED model describing the object as a data attribute for representing a limit description of the data object, at least including whether to trigger a corresponding action, as a fifth layer of the target IED model.

4. The method of claim 3, wherein, The logical device includes at least one logical node and one physical device.

5. The method of claim 3, wherein, adding, in the SCD file, physical port information of the target IED model, first description information of secondary physical circuits between the target IED models, including: determining a logical node type of the corresponding logical node based on the target IED model; in a case where the logical node type is port information, instantiating the logical device as a common logical device in the target IED model to implement a description of the physical port information of the IED model, the physical port information including port name, port medium, and port state; adding the first description information in the target IED model, the first description information being used to describe the target IED model and secondary physical circuits between the target IED models associated with the target IED model.

6. The method of claim 5, wherein, adding, in the SCD file, association information between the secondary virtual circuits of the target IED model and the secondary physical circuits, and adding second description information of a corresponding PhyConn attribute based on the target IED models, including: adding the physical port information in an intAddr attribute of the secondary virtual circuit part in the SCD file to implement the association between the secondary virtual circuits and the secondary physical circuits; adding a PhyConn attribute for the target IED model in the secondary virtual circuit part in the SCD file, the PhyConn attribute being used to describe the port name, the port medium, and the port state in the physical port information.

7. A visualizing device for SCD file based switch and patch panel IEDs, characterized by, The apparatus includes: a first construction unit configured to construct a logical device based on an IEC 61850 standard to describe performance parameters, port information, and communication data statistics of a switch and a patch panel, and obtain a target IED model of the switch and the patch panel; a first processing unit configured to add, based on the target IED model, physical port information of the target IED model, first description information of secondary physical circuits between the target IED models, and association information between secondary virtual circuits and the secondary physical circuits in an SCD file, and add second description information of a corresponding PhyConn attribute based on the target IED models, to obtain a target SCD file; a display unit configured to visually display the target SCD file through an IED view and an interval view; the first construction unit includes: The first construction module is configured to construct a logical device based on the IEC61850 standard to describe performance parameters, port information and communication data statistics of the switch and the distribution frame, and obtain a preliminary IED model; The second construction module is configured to convert the preliminary IED model into a hierarchical model based on a description object of the preliminary IED model, and obtain the target IED model.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored program, wherein the program controls a device where the computer readable storage medium is located to execute the method in any one of claims 1 to 6 when the program is running.

9. A smart substation, characterized by comprise: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise a program for executing the method in any one of claims 1 to 6.

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