CN116260727A

CN116260727A - Automatic generation method and system for network topology diagram of transformer substation

Info

Publication number: CN116260727A
Application number: CN202211335901.7A
Authority: CN
Inventors: 李仲青; 刘怀; 孟江雯; 詹荣荣; 詹智华; 金龙; 刘龙浩; 张坤俊; 宋亮亮; 庄舒仪
Original assignee: State Grid Corp of China SGCC; China Electric Power Research Institute Co Ltd CEPRI; State Grid Jiangsu Electric Power Co Ltd; Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; China Electric Power Research Institute Co Ltd CEPRI; State Grid Jiangsu Electric Power Co Ltd; Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-06-13

Abstract

The invention discloses a method and a system for automatically generating a network topology diagram of a transformer substation, comprising the following steps: analyzing the SCD file of the transformer substation to obtain secondary equipment information and loop port information; determining a direct loop connection information table and a virtual loop connection information table based on the secondary equipment information and the loop port information; based on the secondary equipment information and the loop port information, carrying out data division, and determining a communication subnet type, a transmission data type, a secondary equipment type and a switch hierarchical structure; dividing a network topology structure of secondary equipment of the transformer substation based on the switch hierarchical structure, the direct-connection loop connection information table and the virtual loop connection information table; and automatically drawing a network topology diagram based on the divided secondary equipment network topology structure, the communication sub-network type, the transmission data type and the secondary equipment type, and determining the network topology diagram. The invention can help operation and maintenance personnel to quickly master the network architecture in the station, assist in checking the field fault condition and improve the working efficiency of the operation and maintenance personnel.

Description

Automatic generation method and system for network topology diagram of transformer substation

Technical Field

The invention relates to the technical field of power system automation, in particular to a method and a system for automatically generating a network topology diagram of a transformer substation.

Background

The autonomous controllable new generation transformer substation secondary system is vivid in responding to the national ' improving technological innovation capability ', enhancing the autonomous controllable capability of an industrial chain and a supply chain ', and can remarkably improve the risk resistance capability of a power grid and even the whole industrial system. With the popularization of the autonomous controllable safe and reliable secondary system of the new generation transformer substation by the national network company, the corresponding technical specification system is more perfect, and the corresponding technical support is provided for the operation and maintenance of the power grid.

In a traditional transformer substation, functions and information of the device are relatively fixed, and the information is presented in an information point table mode outwards, so that the device is visual. The autonomous controllable new generation transformer substation adopts a total station system configuration file (Substation Configuration Description, SCD) file to bear all information such as total station function information, topological relation, communication parameters, engineering parameters, communication configuration among devices, primary system structure of the transformer substation and the like. The optical cable, the switch and the configuration logic are used for replacing the secondary loop, after the connection relation of the secondary equipment is described by the system configuration SCD file, the secondary virtual loop cannot be visually seen, and the loop configuration is complex. Compared with the network framework of a conventional intelligent substation, the network framework of the substation is different from the network framework of the conventional intelligent substation, the network framework of the substation is simplified, the substation event (Generic Object Oriented Substation Event, GOOSE) common-port point-to-point transmission of SV and general object-oriented substation is adopted, and the inter-interval GOOSE and DL/T860 messages are transmitted in a common network, so that the network framework of the substation is simplified, and the secondary equipment layout is optimized.

Therefore, a network topology map automatic generation method capable of facing to an autonomous controllable new generation transformer substation is needed.

Disclosure of Invention

The invention provides an automatic generation method and system of a network topology diagram of a transformer substation, which are used for solving the problem of how to efficiently and accurately generate the network topology diagram of an autonomous controllable transformer substation.

In order to solve the above problems, according to an aspect of the present invention, there is provided a network topology map automatic generation method of a substation, the method comprising:

analyzing the SCD file of the transformer substation to obtain secondary equipment information and loop port information;

determining a direct loop connection information table and a virtual loop connection information table based on the secondary equipment information and the loop port information;

performing data division based on the secondary equipment information and the loop port information, and determining a communication subnet type, a transmission data type, a secondary equipment type and a switch hierarchical structure;

dividing a network topology structure of secondary equipment of the transformer substation based on the switch hierarchical structure, the direct-connection loop connection information table and the virtual loop connection information table;

and automatically drawing a network topology diagram based on the divided secondary equipment network topology structure, the communication sub-network type, the transmission data type and the secondary equipment type, and determining the network topology diagram.

Preferably, the secondary device information includes: the device name IEDname, the device description ieddescs and the device model IEDtype of the intelligent electronic device IED;

the loop port information includes: substation communication subnet information, access point information and port connection relation information; wherein, the substation communication subnet information includes: a station control layer sub-network and a process layer sub-network; the access point information comprises a station control layer MMS communication subnet S1, a process layer GOOSE subnet G1 and a process layer SV sampling value subnet M1; the port connection relation information includes: physical Port PhysConn element, physical Cable connection identity Cable element, plug Type Plug element, port number Port element and interface Type element.

Preferably, wherein the determining the direct loop connection information table and the virtual loop connection information table based on the secondary device information and the loop port information includes:

analyzing Cable elements of different IED devices, determining connection relations among ports of the different IED devices, and counting the determined connection relations to determine a direct current loop connection information table; for any two IED devices, if the attributes of the Cable elements are the same, determining that one physical Cable is connected between ports of the any two IED devices;

And analyzing the ExtRef elements under different access points of any two different IED devices, determining the association relation between GOOSE and SV receiving virtual terminals, and extracting physical port information from the intAddr attribute to determine a virtual loop connection information table.

Preferably, the determining the communication subnet category, the transmission data category, the secondary device category and the switch hierarchy based on the secondary device information and the loop port information includes:

dividing communication sub-network types through access point information ConnectedAP.apName; when the connectiedap.apname is S1, determining that the subnet to which the connectiedap.apname belongs is a station control layer communication subnet; when ConnectedAP.apName is other than S1, determining the sub-network to which the S1 belongs as a process layer communication sub-network;

dividing transmission data categories through access point information ConnectedAP.apName; when the connectiedap.apname is S1, determining that the type of the transmitted data is MMS data; when ConnectedAP.apName is G1, determining that the transmitted data type is GOOSE data; when ConnectedAP.apName is M1, determining that the transmitted data type is SV data;

dividing the types of the secondary equipment according to the IEDname; the device is classified into station control layer equipment, measurement and control, protection, intelligent terminals, merging units or intelligent integration equipment and the like through the prefix of the IEDname;

Calculating the maximum cascade number connected to the IED in each switch direct-connection loop, and sorting by taking the maximum cascade number as a reference; screening according to the maximum cascade number, defining the switch with the minimum cascade number as a 1-stage switch, defining the switch with the second small cascade number as a 2-stage switch, and defining the rest switches as 3-stage switches so as to divide the hierarchical structure of all switches.

Preferably, the dividing the network topology structure of the secondary device of the transformer substation based on the switch hierarchical structure, the direct loop connection information table and the virtual loop connection information table includes:

and carrying out loop integration based on the direct loop connection information table and the virtual loop connection information table, removing repeated loops, obtaining a substation loop connection relation, dividing a substation secondary equipment network topology structure based on the substation loop connection relation and the switch hierarchical structure, and determining the substation secondary equipment network topology structure as a switch network topology structure, a switch direct connection topology structure and an IED device networking topology structure.

Preferably, the automatic drawing of the network topology map is performed based on the divided secondary device network topology structure, the communication subnet category, the transmission data category and the secondary device category, and the determining of the network topology map includes:

For a switch network topology, determining a network topology by:

in the aspect of graphic element arrangement, the 1-level switch is used as the center to radiate downwards, and the placement sequence of the 2-level switch connected with the 1-level switch is determined by the port sequence of the direct connection loop of the 1-level switch; then radiating downwards by taking the 2-level switch as the center, and determining the arrangement sequence of the 3-level switch connected with the 2-level switch according to the port sequence of the direct connection loop of the 2-level switch; wherein, after determining the sequence, the primitives of the switches are arranged from top to bottom and from left to right according to the hierarchical relationship;

in terms of port arrangement, the number of wiring ports of the direct connection loop is used for dividing the side length of the primitive;

in terms of port connection, 3 different loops for transmitting only GOOSE signals, only SV signals and simultaneously transmitting GOOSE and SV signals are distinguished by 3 different lines;

for a direct connection topology of a switch, determining a network topology by:

in the aspect of graphic element arrangement, the selected switch is used as the center to radiate all around, and the arrangement sequence of the switch and the IED device connected with the switch is determined according to the direct connection loop port sequence of the switch;

for an IED device networking topology, determining a network topology using the following manner includes:

in the aspect of direct-connection loop topological relation graphic element arrangement, the selected IED device is taken as a center to radiate all around, and the arrangement sequence of a switch and the IED device connected with the device is determined according to the direct-connection loop port sequence of the device so as to perform the layout of the direct-connection loop topological relation;

in the aspect of virtual loop topological relation graphic element arrangement, a direct connection switch is taken as a center, and the position layout of the direct connection switch at the moment is combined, if the direct connection switch is below the IED device, the direct connection switch is radiated downwards, and if the direct connection switch is above the IED device, the direct connection switch is radiated upwards; similarly, for a multi-level switch, the placement sequence of the switch and the IED device in the virtual circuit topological relation connected with the switch is determined by the port sequence of the direct-connection circuit of the direct-connection switch, the information transmission path is displayed in a tree structure mode, and the equipment of each level is also arranged according to the port sequence;

In terms of port connection, 3 different lines are used to distinguish between 3 different loops transmitting GOOSE signals only, SV signals only, and GOOSE and SV signals simultaneously.

According to another aspect of the present invention, there is provided a network topology map automatic generation system of a substation, the system comprising:

the SCD file analysis unit is used for analyzing the SCD file of the transformer substation and acquiring secondary equipment information and loop port information;

a loop connection information table determining unit configured to determine a direct loop connection information table and a virtual loop connection information table based on the secondary device information and the loop port information;

the data dividing unit is used for dividing data based on the secondary equipment information and the loop port information and determining a communication subnet type, a transmission data type, a secondary equipment type and a switch hierarchical structure;

the topological structure dividing unit is used for dividing the network topological structure of the secondary equipment of the transformer substation based on the switch hierarchical structure, the direct-connection loop connection information table and the virtual loop connection information table;

the topology map generating unit is used for automatically drawing the network topology map based on the divided secondary equipment network topology structure, the communication sub-network type, the transmission data type and the secondary equipment type, and determining the network topology map.

Preferably, wherein the loop connection information table determining unit determines a direct loop connection information table and a virtual loop connection information table based on the secondary device information and loop port information, comprising:

Preferably, the data dividing unit performs data division based on the secondary device information and the loop port information, and determines a communication subnet class, a transmission data class, a secondary device class, and a switch hierarchy, including:

Preferably, the topology structure dividing unit performs division of a network topology structure of the secondary device of the substation based on the switch hierarchy structure, the direct loop connection information table and the virtual loop connection information table, and includes:

Preferably, the topology map generating unit performs automatic drawing of a network topology map based on the divided secondary device network topology structure, communication subnet class, transmission data class and secondary device class, and determines the network topology map, including:

For a switch network topology, determining a network topology by:

The invention provides a method and a system for automatically generating a network topology diagram of a transformer substation, comprising the following steps: analyzing the SCD file of the transformer substation to obtain secondary equipment information and loop port information; determining a direct loop connection information table and a virtual loop connection information table based on the secondary equipment information and the loop port information; performing data division based on the secondary equipment information and the loop port information, and determining a communication subnet type, a transmission data type, a secondary equipment type and a switch hierarchical structure; dividing a network topology structure of secondary equipment of the transformer substation based on the switch hierarchical structure, the direct-connection loop connection information table and the virtual loop connection information table; and automatically drawing a network topology diagram based on the divided secondary equipment network topology structure, the communication sub-network type, the transmission data type and the secondary equipment type, and determining the network topology diagram. According to the invention, the connection relation between the secondary devices in the station is obtained by analyzing the SCD configuration file, the topology hierarchical relation between the devices in the station is analyzed by using a topology analysis algorithm, and the topology relation diagram of each hierarchical network in the station is automatically drawn by using an automatic mapping technology, so that operation and maintenance personnel can be helped to quickly master the architecture of the network in the station, intuitively know the network operation information of the secondary devices, assist in checking the field fault condition, and improve the working efficiency of the operation and maintenance personnel.

Drawings

Exemplary embodiments of the present invention may be more completely understood in consideration of the following drawings:

fig. 1 is a flowchart of a method 100 for automatically generating a network topology of a substation according to an embodiment of the present invention;

FIG. 2 is a flow chart of loop data parsing according to an embodiment of the present invention;

FIG. 3 is a flow chart of topology data analysis according to an embodiment of the present invention;

FIG. 4 is a flow chart of automatic drawing and primitive interaction according to an embodiment of the present invention;

FIG. 5 is an exemplary diagram of a typical switch fabric topology layout in accordance with an embodiment of the present invention;

FIG. 6 is an exemplary diagram of a typical switch direct topology layout according to an embodiment of the present invention;

FIG. 7 is an exemplary diagram of a topology layout of an exemplary IED device networking in accordance with an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network topology automatic generation system 800 of a substation according to an embodiment of the present invention.

Detailed Description

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.

Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

Fig. 1 is a flowchart of a method 100 for automatically generating a network topology of a substation according to an embodiment of the present invention. As shown in fig. 1, according to the method for automatically generating the network topology map of the transformer substation, the connection relation between the secondary devices in the substation is obtained by analyzing the SCD configuration file, the topology hierarchical relation between the devices in the substation is analyzed by using the topology analysis algorithm, and the network topology map of each hierarchy in the substation is automatically drawn by using the automatic mapping technology, so that operation and maintenance personnel can be helped to quickly master the network architecture in the substation, intuitively know the network operation information of the secondary devices, assist in troubleshooting the field fault condition, and improve the working efficiency of the operation and maintenance personnel. The method 100 for automatically generating the network topology map of the transformer substation provided by the embodiment of the invention starts from step 101, and in step 101, the SCD file of the transformer substation is analyzed to obtain secondary equipment information and loop port information.

Preferably, the secondary device information includes: intelligent electronic equipment _(Intelligent _Electronic _Device IED) device name IEDname, device description ieddescs, and device model IEDtype;

In the invention, importing SCD file, analyzing SCD file, obtaining secondary equipment information and loop port information, comprising:

(1) Acquiring secondary equipment information, including: IEDname (device name), ieddescs (device description), and IEDtype (device model);

(2) The method comprises the steps of obtaining substation communication subnet information, wherein the substation communication subnet information comprises a station control layer subnet and a process layer subnet;

(3) Acquiring access point information, wherein the access point information comprises S1 (station control layer MMS communication subnet), G1 (process layer GOOSE subnet) and M1 (process layer SV sampling value subnet);

(4) And acquiring Port connection relation information, wherein the Port connection relation information comprises a PhysConn (physical Port) element, a Cable (physical Cable connection identity) element, a Plug (Plug Type) element, a Port (Port number) element and a Type (interface Type) element.

From step 102, a direct loop connection information table and a virtual loop connection information table are determined based on the secondary device information and loop port information.

In the invention, the direct-connection loop connection information table is obtained by analyzing the Cable elements of different IED devices. For example, if the Cable elements have the same attribute, it may be determined that there is a physical Cable connected between the ports of the two IED devices. Thereby counting the connection information of the direct connection loop. And analyzing the ExtRef elements under different access points of different IED devices to obtain the association relation of GOOSE and SV receiving virtual terminals, and extracting physical port information from the intAddr attribute to obtain a virtual loop connection information table.

From step 103, data division is performed based on the secondary device information and the loop port information, and a communication subnet class, a transmission data class, a secondary device class and a switch hierarchy are determined.

In the invention, the data related to the topological loop obtained in the scd configuration file is divided so as to form a more visual and efficient graphical topology. The method specifically comprises the following steps:

(1) Dividing the communication sub-network categories: the communication subnet type, i.e., connectiedap.apname, is determined by the access point information. When ConnectedAP.apName is S1, the sub-network is a station control layer communication sub-network; when connectiedap.apname is a value other than S1, the sub-network to which it belongs is a process layer communication sub-network. Topology diagrams of the station-control layer communication sub-network and the process-layer communication sub-network are respectively drawn.

(2) Dividing transmission data categories: when ConnectedAP.apName is S1, the type of data transmitted at the moment is MMS data; when ConnectedAP.apName is G1, the data type transmitted at the moment is GOOSE data; when connectidap.apname is M1, the data type transmitted at this time is SV data.

(3) Secondary device categories are divided: and identifying and dividing the types of the secondary equipment according to the IEDname, and classifying the device into equipment such as station control layer equipment, measurement and control, protection, intelligent terminals, merging units, intelligent integration and the like through the prefix of the IEDname.

(4) Dividing a switch hierarchy: calculating the maximum cascade number connected to the IED in each switch direct-connection loop, and sorting by taking the maximum cascade number as a reference; screening is carried out according to the maximum cascade number, wherein the switch with the minimum cascade number is defined as a 1-stage switch, the switch with the second small cascade number is defined as a 2-stage switch, the rest switches are defined as 3-stage switches, and the division of the hierarchical structure of all switches is defined.

And step 104, dividing the network topology structure of the secondary equipment of the transformer substation based on the switch hierarchical structure, the direct loop connection information table and the virtual loop connection information table.

In the invention, when the topological structure is divided, the connection relations in the direct loop connection information table and the virtual loop connection information table are classified and sorted, and the repeated loops are removed, so that the unique total station loop connection relation is obtained. And dividing the network topology structure of the total station secondary equipment into 3 categories of a switch networking topology, a switch direct connection topology and an IED device networking topology according to the switch hierarchical structure and the total station loop connection relation.

From step 105, automatic drawing of the network topology map is performed based on the divided secondary device network topology structure, communication subnet category, transmission data category and secondary device category, and the network topology map is determined.

For a switch network topology, determining a network topology by:

In the invention, the basic primitive is instantiated, so that the generation of the topological graph is performed. The number, the positions and the sequence of ports are not fixed, the positions of the ports on the side of the connection line are determined by the positions of the ports on the side of the connection line after the layout, and then the positions of the ports on the side of the connection line are determined to be positioned on the upper side or the lower side of the rectangle. Different equipment types are distinguished by adopting primitives with different colors, and the expression modes of the colors of the primitives are not unique, and only the secondary equipment with different types is required to be ensured to have identification degree.

In the invention, the corresponding refined network topological graph is automatically drawn according to the topological hierarchy structure, and the picture interaction among different topological graphs is realized, which comprises the following steps:

(1) Generating a topological diagram of the exchange network: the exchange network topological graph shows the topological connection relationship between exchanges, and is suitable for station control layer and process layer networks;

1) In terms of primitive placement: the method comprises the steps of radiating downwards by taking a 1-level switch as a center, and determining the arrangement sequence of a 2-level switch connected with the 1-level switch according to the port sequence of a direct connection loop of the 1-level switch; and then radiating downwards by taking the 2-stage switch as the center, and determining the arrangement sequence of the 3-stage switch connected with the 2-stage switch according to the port sequence of the direct connection loop of the 2-stage switch. And after the sequence is determined, the primitives of the switches are arranged from top to bottom and from left to right according to the hierarchical relationship.

2) In terms of port placement: the number of the wiring ports (the upper side and the lower side of the branch) of the direct connection loop is used for dividing the side length of the graphic element, so that the wiring terminals can be more attractive to fall on the equal division of the side length.

3) In terms of port connection: 3 different line types are used to distinguish between 3 different loop uses in which only GOOSE signals are transmitted, only SV signals are transmitted, and GOOSE and SV signals are transmitted simultaneously.

(2) Generating a direct connection topological graph of the switch: the switch direct connection topological graph shows the topological relation of a direct connection loop with the switch, and is applicable to a station control layer network and a process layer network;

1) In terms of primitive placement: the selected switch is used as the center to radiate all around, and the arrangement sequence of the switch and the IED devices connected with the switch is determined by the direct connection loop port sequence of the switch.

(3) IED device networking topology: the IED device networking topology diagram displays the direct loop topology relation of the IED and the virtual loop topology connection relation of the IED device with process layer logic information interaction, and is applicable to a process layer network;

1) In terms of direct loop topology primitive placement: the selected IED device is used as the center to radiate all around, the placement sequence of the switches and the IED devices connected with the device is determined according to the direct-connection loop port sequence of the device, and after the placement of the direct-connection loop topological relation is arranged, virtual loop topological relation placement is considered, and the virtual loop topological relation placement does not belong to the direct-connection loop.

2) In terms of virtual loop topology primitive placement: in the virtual circuit, a part of the virtual circuit belongs to a direct-connection circuit, and the part of the virtual circuit belongs to the direct-connection circuit topology, so that the rest virtual circuits are necessarily switched through 1 or more direct-connection switches, and the indirect connection relation of the virtual circuits is realized. The method is characterized in that a direct-connection switch is taken as a center, the position layout of the direct-connection switch at the moment is combined, if the direct-connection switch is radiated downwards under the IED device, if the direct-connection switch is radiated upwards over the IED device, the direct-connection switch is related to multi-level switch management, the arrangement sequence of the switch and the IED device in the virtual circuit topological relation connected with the direct-connection switch is determined according to the direct-connection circuit port sequence of the direct-connection switch, the information transmission path is displayed in a tree structure mode, and equipment of each level is also arranged according to the port sequence.

3) In terms of port placement: the number of the wiring ports (the upper side and the lower side of the branch) of the direct connection loop is used for dividing the side length of the graphic element, so that the wiring terminals can be more attractive to fall on the equal division of the side length.

4) In terms of port connection: 3 different line types are used to distinguish between 3 different loop uses in which only GOOSE signals are transmitted, only SV signals are transmitted, and GOOSE and SV signals are transmitted simultaneously.

The method is suitable for automatically drawing the network topology diagram of the autonomous controllable new generation transformer substation, is different from the common practice in the market, and does not need to analyze the configuration files of the optical fiber physical loop and the logic virtual loop simultaneously, and then realizes the analysis of the process layer network topology relation of the intelligent transformer substation and the process layer network topology presentation of the intelligent transformer substation through the virtual-real mapping technology. According to the invention, the connection relation between each secondary device in the station can be obtained by analyzing the SCD configuration file of the autonomous controllable station, the network structure model of the secondary device in the autonomous controllable substation is quickly constructed, the topology hierarchical relation between each device in the station is analyzed by using a topology analysis algorithm, the network topology relation diagram of each hierarchy in the station is automatically drawn by using an automatic mapping technology, and the network architecture of different hierarchies in the station is quickly presented, so that a user can intuitively and clearly know the station control layer network and process layer network operation information of the secondary device. Compared with the common practice in the market, the invention has wider application range for users, more efficient and more convenient application mode and more reliable and stable application effect.

The following specifically exemplifies embodiments of the present invention

In the embodiment of the invention, in the SCD file, the receiving-transmitting logic relationship between the process layer network IEDs can be obtained through the intra-station virtual loop configuration information, and the port information of the sender and the receiver can be obtained through the physical port description of the device access point, so that the loop connection relationship between the secondary devices in the station can be obtained through the SCD file of the independently controllable new-generation substation. As shown in fig. 2.

(1) Obtaining secondary device information

Traversing a list of all secondary equipment IEDs (intelligent electronic devices) of the total station, wherein each IED is a device, and analyzing and acquiring IED.name, IED.desc and IED.type (device model).

Examples: < IED name= "PL 1101" type= "NSR-304 DA-G-C" desc= "line 1 protected integral" mangafacter= "GDNR" configversion= "V3 00" >

As can be taken from the above example, ied.name is PL1101, ied.desc is line 1, and ied.type is NSR-304 DA-G-C.

(2) Acquiring loop port information

1) And analyzing the substation communication subnet information. The communication network in the transformer substation is composed of a plurality of communication subnets (subnetworks), and one transformer substation generally has 1 or 2 station control layer subnets (namely, a station control layer A network and a station control layer B network are standby networks), and 1 process layer subnet (which can be divided into 1 process layer GOOSE subnet and 1 process layer SV subnet). The distinction between different subnets may be judged by the access point.

For example: < SubNetwork type= "8-MMS" name= "subnetwork_stationbus_a" desc= ">" means station layer a network communication SubNetwork

< SubNetwork type= "8-MMS" name= "subnetwork_stationbus_b" > means a station layer B network communication SubNetwork

< SubNetwork type= "8-GOOSE" name= "subnetwork_processbus" > means process layer network communication SubNetwork.

2) And analyzing the access point information. Each communication subnet layer contains several connectiedaps (access points), and the type of the access point can be determined by the apName (access point name) attribute of the connectiedap element, where iedName is the device name to which the access point belongs. When connectidap.apname is S1, it represents a station control layer MMS (manufacturing message specification) communication subnet, G1 represents a process layer GOOSE (generic object oriented substation event) subnet, and M1 represents a process layer SV (sampled value) subnet.

For example: < ConnectedAP iedName = "s_v5001b" desc= "" apname= "M1"/> represents process layer SV subnet information of s_v5001b device

< ConnectedAP iedName = "s_v5001a" desc= "" apname= "G1"/> represents process layer GOOSE subnet information of s_v5001a device

< ConnectedAP iedName = "CMA 0001X" desc= "station control layer" apname= "S1" > means station control layer MMS subnet information of CMA0001X device.

3) And analyzing the port connection relation information. The device access point physical port description is defined using the "PhysConn" element, and 1 typical definition example is as follows:

LC

3-A

FOC

1

</PhysConn>

the "type" attribute of the PhysConn element defines the first physical portal when the value of the "Connection" is defined, and "RedConn" is defined for other redundant physical Connection portals, and when a redundant Connection or connections are employed, the PhysConn element may appear repeatedly, but the "type" attribute should be "RedConn". The "Plug" element indicates the Plug type, such as ST (snap-in circular fiber interface), LC (small fiber connector), RJ45 (twisted pair Plug), etc.; the "Port" element indicates a Port number, in the format "Board number-Port number", such as 1-A; the "Type" element indicates an interface Type such as FOC (fiber optic connection), 100BaseT (hundred mega ethernet), radio (wireless connection), and the like; the "Cable" element indicates that a physical Cable (Cable or fiber optic Cable, etc.) is used to connect the two ports. In two different secondary devices, if the attributes of the Cable elements are the same, it can be determined that a physical Cable is connected between the two ports.

(3) Direct loop connection information statistics

Traversing the SCD file, carrying out statistical arrangement on the secondary equipment information and the loop port information, and generating a direct-connection loop connection information table. A typical direct loop connection information table is shown below:

(4) Virtual loop connection information parsing statistics

The devices of the process layer sub-network communicate with each other through the process layer network based on the release/subscription mechanism, and the process layer communication information is expressed through the virtual loop, so that the virtual loop connection relation can be obtained by analyzing the called virtual loop information in the scd file. And defining the physical port association relation of the GOOSE and the SV receiving access point by adopting an 'Extref' element in the scd file with reference to subscriber equipment, and adding the physical port description in an 'intAddr' attribute to express.

For example: < ExtRef daname= "stVal" doname= "Pos" iedname= "IL2201A" ldlnst= "RPIT" lnclass= "XCBR" lnlnst= "1" prefix= "Q0A" intaddr= "1-a: PIGO/goinggio1.Dpcso1.StVal"/> "means that the transmitting device IL2201A transmits RPIT/q0axcb1. Pos. StVal virtual terminal data, and the receiving device receives PIGO/goinggio1.Dpcso1.StVal virtual terminal data with 1-a port.

Traversing all virtual loops of the scd file, carrying out statistics and arrangement on all virtual loop information, only analyzing the information of the publisher device and the port, the subscriber device and the port, and generating a virtual loop connection information table without analyzing the actual virtual terminal information transmitted by the loops, wherein the table format is the same as that of the direct connection loop connection information table example.

After the data related to the topology loop is obtained from the scd configuration file, the topology data is further analyzed and processed according to the information such as the condition of the substation communication subnet and the hierarchical structure of the switch, so that a more visual and efficient graphical topology is formed. The topology data analysis flow is shown in fig. 3.

1) Dividing communication subnetwork categories

The communication subnet type, i.e., connectiedap.apname, is determined by the access point information. When ConnectedAP.apName is S1, the sub-network is a station control layer communication sub-network; when connectiedap.apname is a value other than S1, the sub-network to which it belongs is a process layer communication sub-network. Topology diagrams of the station-control layer communication sub-network and the process-layer communication sub-network are respectively drawn.

2) Dividing transmission data categories

When ConnectedAP.apName is S1, the type of data transmitted at the moment is MMS data; when ConnectedAP.apName is G1, the data type transmitted at the moment is GOOSE data; when connectidap.apname is M1, the data type transmitted at this time is SV data.

3) Dividing secondary device categories

And identifying and dividing the types of the secondary equipment according to the IEDname, and classifying the device into equipment such as station control layer equipment, measurement and control, protection, intelligent terminals, merging units, intelligent integration and the like through the prefix of the IEDname. The IED naming schemes for each device are shown in the following table:

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4) Partitioning switch hierarchies

Firstly, calculating the maximum cascade number connected to the IED in a direct connection loop of each switch, and sorting by taking the maximum cascade number as a reference; then screening according to the maximum cascade number, wherein the switch with the minimum cascade number is defined as a 1-stage switch, the switch with the second small cascade number is defined as a 2-stage switch, and the rest switches are defined as 3-stage switches; ultimately, the partitioning of all switch hierarchies is clarified.

5) Partition topology

Sorting and sorting the connection relation between the direct loop and the virtual loop, and eliminating the repeated loop, thereby obtaining the unique connection relation of the loop of the whole station; and dividing the network topology structure of the total station secondary equipment into 3 categories of a switch networking topology, a switch direct connection topology and an IED device networking topology according to the switch hierarchical structure and the unique loop connection relation of the total station.

The rectangular graphic elements are used by all devices together, the number, the positions and the sequence of ports are not fixed, the positions of the ports on the side are determined by the positions of the ports on the opposite side of the connection line after the layout, and then the positions of the ports on the side are determined to be positioned on the upper side or the lower side of the rectangle. Different equipment types are distinguished by adopting different colors of primitives, for example, a protection device is green, a measurement and control device is yellow, a merging unit is gray, an intelligent terminal is orange, other equipment is cyan, the expression mode of the colors of the primitives is not unique, and only the secondary equipment of different types is required to be ensured to have identification degree.

Equipment information such as IEDname, device name, device model and the like is required to be displayed on each graphic element; because the number, naming rule and use condition of the ports of different devices are very different, the port positions are not fixed when the graphic element is instantiated, and the port positions are redistributed according to the need when the wiring is generated; when the primitives are placed in the canvas, the primitives are placed in a classified manner as far as possible.

After topology data acquisition, topology type analysis and topology graphic element instantiation are completed, the next step is to automatically draw a corresponding refined network topology graph according to a topology hierarchy structure and realize picture interaction among different topology graphs. The first place is a topological diagram of the exchange network, and the network connection relation of the total station exchange can be checked through the topological diagram of the exchange network; any switch primitive is selected, so that the switch can be switched to a corresponding switch direct-connection topological graph, and all direct-connection loop information of the current switch is checked; and selecting any IED device graphic element, switching to a corresponding IED device networking topological graph, and checking the direct loop connection condition and virtual loop logic combination of the current device. The automatic drawing and primitive interaction flow is shown in fig. 4:

(1) Topological graph of exchange network

The switch network topology diagram shows the topology connection relation between the switches, and is suitable for the station control layer and the process layer network.

In terms of primitive placement: in order to ensure that the arrangement rule of the ports of the device is as much as possible, the ports of the direct connection loop of the grade 1 switch radiate downwards with the grade 1 switch as the center, and the arrangement sequence of the grade 2 switch connected with the grade 1 switch is determined by the port sequence of the direct connection loop of the grade 1 switch; and then radiating downwards by taking the 2-stage switch as the center, and determining the arrangement sequence of the 3-stage switch connected with the 2-stage switch according to the port sequence of the direct connection loop of the 2-stage switch. And after the sequence is determined, the primitives of the switches are arranged from top to bottom and from left to right according to the hierarchical relationship.

In terms of port placement: the number of the wiring ports (the upper side and the lower side of the branch) of the direct connection loop is used for dividing the side length of the graphic element, so that the wiring terminals can be more attractive to fall on the equal division of the side length.

In terms of port connection: 3 different line types are used to distinguish between 3 different loop uses in which only GOOSE signals are transmitted, only SV signals are transmitted, and GOOSE and SV signals are transmitted simultaneously.

An example of a typical switch fabric topology layout is shown in fig. 5.

(2) Direct connection topological graph of switch

The direct connection topological graph of the switch shows the topological relation of a direct connection loop with the switch, and is applicable to a station control layer network and a process layer network.

In terms of primitive placement: the selected switch is used as the center to radiate all around, and the arrangement sequence of the switch and the IED devices connected with the switch is determined by the direct connection loop port sequence of the switch.

The port arrangement and the connection method are the same as the exchange network topology diagram.

An example of a typical switch direct topology layout is shown in fig. 6.

3) IED device networking topology

The IED device networking topology diagram shows the direct loop topology relation of the device and the virtual loop topology connection relation of the IED device with process layer logic information interaction, and is applicable to a process layer network.

In terms of direct loop topology primitive placement: and radiating the selected IED device around the center, sequentially determining the arrangement sequence of the switches and the IED devices connected with the device by using the port sequence of the direct-connection loop of the device, and after the arrangement of the direct-connection loop topological relation, beginning to consider the virtual loop topological relation arrangement. Not belonging to directly-connected circuits

In terms of virtual loop topology primitive placement: in the virtual circuit, a part of the virtual circuit belongs to a direct-connection circuit, and the part of the virtual circuit belongs to the direct-connection circuit topology, so that the rest virtual circuits are necessarily switched through 1 or more direct-connection switches, and the indirect connection relation of the virtual circuits is realized. The method is characterized in that a direct-connection switch is taken as a center, the position layout of the direct-connection switch at the moment is combined, if the direct-connection switch is radiated downwards under the IED device, if the direct-connection switch is radiated upwards over the IED device, the direct-connection switch is related to multi-level switch management, the arrangement sequence of the switch and the IED device in the virtual circuit topological relation connected with the direct-connection switch is determined according to the direct-connection circuit port sequence of the direct-connection switch, the information transmission path is displayed in a tree structure mode, and equipment of each level is also arranged according to the port sequence.

A typical IED device networking topology layout is shown in fig. 7.

Fig. 8 is a schematic structural diagram of a network topology automatic generation system 800 of a substation according to an embodiment of the present invention. As shown in fig. 8, a system 800 for automatically generating a network topology map of a substation according to an embodiment of the present invention includes: an SCD file analysis unit 801, a loop connection information table determination unit 802, a data division unit 803, a topology division unit 804, and a topology map generation unit 805.

Preferably, the SCD file analysis unit 801 is configured to analyze an SCD file of the substation, and obtain secondary device information and loop port information.

Preferably, the loop connection information table determining unit 802 is configured to determine a direct loop connection information table and a virtual loop connection information table based on the secondary device information and the loop port information.

Preferably, the loop connection information table determining unit 802 determines a direct loop connection information table and a virtual loop connection information table based on the secondary device information and loop port information, including:

Preferably, the data dividing unit 803 is configured to perform data division based on the secondary device information and the loop port information, and determine a communication subnet class, a transmission data class, a secondary device class, and a switch hierarchy.

Preferably, the data dividing unit 803 performs data division based on the secondary device information and loop port information, and determines a communication subnet class, a transmission data class, a secondary device class, and a switch hierarchy, including:

Preferably, the topology dividing unit 804 is configured to divide a network topology of the secondary device of the substation based on the switch hierarchy, the direct loop connection information table and the virtual loop connection information table.

Preferably, the topology dividing unit 804 performs division of a network topology of the secondary device of the substation based on the switch hierarchy structure, the direct loop connection information table and the virtual loop connection information table, and includes:

Preferably, the topology map generating unit 805 is configured to automatically draw a network topology map based on the divided secondary device network topology structure, the communication subnet class, the transmission data class, and the secondary device class, and determine the network topology map.

Preferably, the topology map generating unit 805 performs automatic drawing of a network topology map based on the divided secondary device network topology structure, communication subnet class, transmission data class, and secondary device class, and determines a network topology map, including:

for a switch network topology, determining a network topology by:

The automatic generation system 800 of the network topology map of the substation according to the embodiment of the present invention corresponds to the automatic generation method 100 of the network topology map of the substation according to another embodiment of the present invention, and will not be described herein.

The invention has been described with reference to a few embodiments. However, as is well known to those skilled in the art, other embodiments than the above disclosed invention are equally possible within the scope of the invention, as defined by the appended patent claims.

Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise therein. All references to "a/an/the [ means, component, etc. ]" are to be interpreted openly as referring to at least one instance of said means, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may 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 instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may 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 functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.

Claims

1. An automatic generation method of a network topology diagram of a transformer substation is characterized by comprising the following steps:

2. The method of claim 1, wherein the secondary device information comprises: device name, device description and device model of the intelligent electronic device IED;

the loop port information includes: substation communication subnet information, access point information and port connection relation information; wherein, the substation communication subnet information includes: a station control layer sub-network and a process layer sub-network; the access point information comprises a station control layer MMS communication subnet, a process layer GOOSE subnet and a process layer SV sampling value subnet; the port connection relation information includes: physical port element, physical cable connection identity element, plug type element, port number element, and interface type element.

3. The method of claim 2, wherein determining a direct loop connection information table and a virtual loop connection information table based on the secondary device information and loop port information comprises:

analyzing physical cable connection identity identification elements of different IED devices, determining connection relations existing among ports of the different IED devices, counting the determined connection relations, and determining a direct current loop connection information table; for any two IED devices, if the attributes of the physical cable connection identity identification elements are the same, determining that one physical cable connection exists between ports of the any two IED devices;

4. The method of claim 2, wherein the determining a communication subnet class, a transmission data class, a secondary device class, and a switch hierarchy based on the secondary device information and loop port information comprises:

Dividing the communication sub-network categories through access point information ConnectedAP.apName; when the ConnectedAP.apName is a station control layer MMS communication subnet, determining the category of the communication subnet to be the station control layer communication subnet; when ConnectedAP.apName is other values except the station control layer MMS communication subnet, determining the category of the communication subnet to be a process layer communication subnet;

dividing transmission data categories through access point information ConnectedAP.apName; when the ConnectedAP.apName is a station control layer MMS communication subnet, determining that the transmission data type is MMS data; when the ConnectedAP.apName is a process layer GOOSE subnet, determining that the transmission data type is GOOSE data; when ConnectedAP.apName is a process layer SV sampling value subnet, determining the transmission data type as SV data;

dividing secondary equipment categories according to the device names of the intelligent electronic equipment IEDs; the secondary equipment is classified into station control layer equipment, measurement and control, protection, intelligent terminals, merging units or intelligent integration equipment and the like through the prefix of the device name of the intelligent electronic equipment IED;

5. The method according to claim 2, wherein the dividing the network topology of the secondary device of the substation based on the switch hierarchy, the direct loop connection information table and the virtual loop connection information table comprises:

6. The method of claim 5, wherein the automatically drawing the network topology based on the partitioned secondary device network topology, the communication subnet class, the transmission data class, and the secondary device class, and determining the network topology comprises:

for a switch network topology, determining a network topology by:

7. A system for automatically generating a network topology of a substation, the system comprising:

8. The system of claim 7, wherein the secondary device information comprises: device name, device description and device model of the intelligent electronic device IED;

9. The system according to claim 8, wherein the loop connection information table determining unit determines a direct loop connection information table and a virtual loop connection information table based on the secondary device information and loop port information, comprising:

10. The system according to claim 8, wherein the data dividing unit performs data division based on the secondary device information and loop port information, determines a communication subnet class, a transmission data class, a secondary device class, and a switch hierarchy, comprising:

Dividing communication sub-network types through access point information ConnectedAP.apName; when the ConnectedAP.apName is a station control layer MMS communication subnet, determining that the subnet is the station control layer communication subnet; when ConnectedAP.apName is other values except the MMS communication sub-network of the station control layer, determining the sub-network as a process layer communication sub-network;

dividing transmission data categories through access point information ConnectedAP.apName; when the ConnectedAP.apName is a station control layer MMS communication subnet, determining that the transmitted data type is MMS data; when the ConnectedAP.apName is a process layer GOOSE subnet, determining that the transmitted data type is GOOSE data; when ConnectedAP.apName is a process layer SV sampling value subnet, determining that the transmitted data type is SV data;

dividing the types of the secondary equipment according to the IEDname; the device is classified into a station control layer device, measurement and control, protection, an intelligent terminal, a merging unit or an intelligent integration device and the like through the prefix of the device name of the intelligent electronic device IED;

11. The system according to claim 8, wherein the topology dividing unit performs division of a network topology of the substation secondary device based on the switch hierarchy, the direct current back connection information table, and the virtual loop connection information table, and includes:

12. The system according to claim 11, wherein the topology map generation unit performs automatic drawing of the network topology map based on the divided secondary device network topology, communication subnet class, transmission data class, and secondary device class, and determines the network topology map, comprising:

for a switch network topology, determining a network topology by: