Intelligent substation communication means based on the modeling of Ethernet switch physical port
Technical field
The present invention relates to the electric power system design field, especially relate to a kind of intelligent substation communication means based on the modeling of Ethernet switch physical port.
Background technology
Engineering design for the intelligent substation electrical secondary system, the variation that has the greatest impact is exactly: intelligent substation has replaced conventional secondary circuit with communication network, virtual digit information in the network has replaced electric signal physically, the input/output relation of electrical secondary system function information logic and signal is corresponding no longer one by one with the communication network wiring, the form of traditional secondary circuit be beyond expression function logic and signal logic in the intelligent substation.
The subject matter that faces in the intelligent substation design process at present is:
1, because designing unit lacks the design means that complete figure is supported, engineering design only limits to finish the degree of hardwire design, and the needed intelligent apparatus functional configuration of Construction Phase, communication configuration can not be provided.And existing modeling tool software, what mainly pay attention to is the output of SCD, ICD, CID, great majority just as one easily edit tool use, lack the displaying of image for the modeling of correspondence between the network configuration modeling of factory's station communication system, the modeling of intelligent apparatus example, the intelligent apparatus.
2, related among the publication No. CN 102270261A based on the integrated intelligent substation design methods of CAD artwork.Introduced the process of setting up model file of secondary circuit in the intelligent substation; one of most important equipment is exactly Ethernet switch after the networking; and all carry out modeling for intelligent apparatus such as protective device, intelligent terminals in the IEC61850 standard; and not carrying out modeling for Ethernet switch, this has just affected the accuracy of designing unit's accurately network service reasonable in design greatly.
The physical model of Ethernet switch and physical connection relation is not described in IEC61850, Direct function description virtual network.For the complete design of a transformer station, the annexation between the physical equipment not only will be described, also to design physical equipment clear.How many ports are for example arranged, model, size, which equipment fixing position and each port connect.
Summary of the invention
The objective of the invention is provides the intelligent substation communication means based on the modeling of Ethernet switch physical port for overcoming above-mentioned the deficiencies in the prior art.
For achieving the above object, the present invention adopts following technical proposals:
A kind of intelligent substation communication means based on the modeling of Ethernet switch physical port, the step that it comprises is:
1) the IEC61850 model of Ethernet switch is described with RDF with the form identical with IEC61970CIM, set up the RDF Schema of Ethernet switch model, determine the structure description of IEC61850 model object in RDF of Ethernet switch, comprise model class, the incidence relation between model class attribute and the model class;
2) Ethernet switch is carried out modeling based on rdf model, determine the model structure of Ethernet switch, port organization, and Ethernet switch and ethernet switch port, the incidence relation between Ethernet switch and the intelligent apparatus;
3) design Ethernet switch primitive types module in AutoCAD; And represent Ethernet switch by the AutoCAD graphic symbol, and represent the port graphic symbol of Ethernet switch by the short-term among the AutoCAD, set up the pel of Ethernet switch;
4) Ethernet switch and port graphic symbol respectively an extended attribute by separately in the rdf model with it corresponding model object unique identification carry out record, to set up one to one mapping relations;
5) in AutoCAD, set up intelligent apparatus primitive types module, and represent respectively intelligent apparatus and port thereof by the AutoCAD graphic symbol;
6) intelligent apparatus and port graphic symbol respectively an extended attribute by separately in the rdf model with it corresponding model object unique identification carry out record, to set up one to one mapping relations;
7) in AutoCAD, pass through to draw connecting line, the port of intelligent apparatus and the port of Ethernet switch are established a connection, the unique identification of the model object that records in the extended attribute with the port of the Ethernet switch in the rdf model and the port of intelligent apparatus when drawing is associated, and sets up the incidence relation of two objects in rdf model; The foundation of the ports physical annexation of all intelligent apparatus and Ethernet switch is finished in cycling.
Described step 1) model class comprises network equipment base class in, the subnet class, network segment class, the port class be connected class, polymerization between described network segment class and the subnet class, the port class be connected class and be associated, also comprise Ethernet switch class and intelligent apparatus class, described subnet class, network segment class, Ethernet switch class and intelligent apparatus class are inherited respectively automatic network equipment base class; Port is birdsed of the same feather flock together and is incorporated into network equipment base class, comprises port in the port class; The Ethernet switch class of inheriting automatic network equipment base class also polymerization port.
After described step 7) is set up the incidence relation of two objects in rdf model, adopt Excel form form mode to export to the physical connection relation that generates.
Operation principle of the present invention:
Physical model and the physical connection relation of Ethernet switch are not described in IEC61850, one of most important equipment is exactly Ethernet switch after the secondary circuit networking, the present invention is by setting up Ethernet switch and port device rdf model thereof, and designing unit relies on the too network switch model that provides to show intuitively the design of finishing transformer station in patterned mode by Model instantiation.
Beneficial effect of the present invention is:
The present invention passes through the Ethernet switch modeling, by drawing the AutoCAD graphics mode, the annexation of the physics between Ethernet switch and intelligent apparatus and logic is set up, and show intuitively in patterned mode, guarantee in the design process control directly perceived to the network service situation, thereby guaranteed in the design process design to network service.
Can be in the intelligent substation design process on the basis of the Ethernet switch annexation model that this patent is set up according to logic mutual operative relationship configuration virtual network (VLAN) easily.
Description of drawings
Fig. 1 is model class module of the present invention and related structural principle schematic diagram thereof;
Fig. 2 is program flow diagram of the present invention.
1. network equipment base class wherein, 2. intelligent apparatus class, 3. subnet class, 4. network segment class, 5. the port class 6. connects class, the 7. mutual machine class of Ethernet.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1, model class module and related definition thereof, box indicating model class module, the association between the wire list representation model generic module between the square frame, this is associated as the polymerization association expression that identifies with rhombus on the line head, and the line with the rhombus sign does not represent common association.Subnet class 3(SubNet), network segment class 4(NetSegment), Ethernet switch class 7(NetSwitch) and intelligent apparatus class 2(IED) all inherit automatic network equipment base class 1(NetEquipBase), network segment class 4(NetSegment) is aggregated to subnet class 3(SubNet), port class 5(Port) be aggregated to network equipment base class 1(NetEquipBase), the Ethernet switch (NetSwitch) of namely inheriting automatic network equipment base class then also polymerization port (Port).
A kind of intelligent substation communication means based on the modeling of Ethernet switch physical port among Fig. 2, the step that it comprises is:
A kind of intelligent substation communication means based on the modeling of Ethernet switch physical port, the step that it comprises is:
1) the IEC61850 model of Ethernet switch is described with RDF with the form identical with IEC61970CIM, set up the RDF Schema of Ethernet switch model, determine the structure description of IEC61850 model object in RDF of Ethernet switch, comprise model class, the incidence relation between model class attribute and the model class;
2) Ethernet switch is carried out modeling based on rdf model, determine the model structure of Ethernet switch, port organization, and Ethernet switch and ethernet switch port, the incidence relation between Ethernet switch and the intelligent apparatus;
3) design Ethernet switch primitive types module in AutoCAD; And represent Ethernet switch by the AutoCAD graphic symbol, and represent the port graphic symbol of Ethernet switch by the short-term among the AutoCAD, set up the pel of Ethernet switch;
4) Ethernet switch and port graphic symbol respectively an extended attribute by separately in the rdf model with it corresponding model object unique identification carry out record, to set up one to one mapping relations;
5) in AutoCAD, set up intelligent apparatus primitive types module, and represent respectively intelligent apparatus and port thereof by the AutoCAD graphic symbol;
6) intelligent apparatus and port graphic symbol respectively an extended attribute by separately in the rdf model with it corresponding model object unique identification carry out record, to set up one to one mapping relations;
7) in AutoCAD, pass through to draw connecting line, the port of intelligent apparatus and the port of Ethernet switch are established a connection, the unique identification of the model object that records in the extended attribute with the port of the Ethernet switch in the rdf model and the port of intelligent apparatus when drawing is associated, and sets up the incidence relation of two objects in rdf model; The foundation of the ports physical annexation of all intelligent apparatus and Ethernet switch is finished in cycling.
Step 1) model class comprises network equipment base class 1 in, subnet class 3, network segment class 4, port class 5 be connected class 6, polymerization between described network segment class 4 and the subnet class 3, port class 5 be connected class 6 and be associated, also comprise Ethernet switch class 7 and intelligent apparatus class 2, described subnet class 3, network segment class 4, Ethernet switch class 7 and intelligent apparatus class 2 are inherited respectively automatic network equipment base class 1; Port class 5 is aggregated to network equipment base class 1, comprises port in the port class 5, the Ethernet switch class 7 of inheriting automatic network equipment base class 1 also polymerization port;
After step 7) is set up the incidence relation of two objects in rdf model, adopt Excel form form mode to export to the physical connection relation that generates.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.