Graphical intelligent substation model implementation method based on CAD
The present invention relates to a kind of intelligent substation model implementation method, belong to the automatic control technology of power system field.
In existing intelligent substation engineering, the mode basically identical of design and original conventional substation, by IED manufacturer generator schematic diagram and group screen figure, be responsible for drawing engineering drawings such as first and second system wiring figure and network connection figure by designing institute according to project planning, again by system manufacturer secondary input generation system model file, and finish the model configuration, flow process is as shown in Figure 1.
The drawback of this design is:
1. bring the duplication of labour and the possibility mistake of the artificial input information of contrast drawing.The engineering drawing that designing institute provides is transferred in integrator's generation model file process, unavoidably needs repeatedly artificial input information, has increased fallibility greatly.
2. progress seriously relies on equipment vendors.Because the drawing that designing institute provides does not directly relate to model file, all must be in design, construction, debugging, maintenance process by auxiliary design and the model configuration of finishing data message stream in the station of manufacturer, basically grasp uniting and adjustment job schedule and project progress by manufacturer, bring a large amount of manufacturers coordination problem and work.
3. the facility that when transformer station's reorganization and expansion, does not obtain to envision.Because the system integration is finished by equipment vendors, and device configuration tool and system configuration utility shortage versatility, very limited during reorganization and expansion if the then original configuration of replacing manufacturer is inherited, limit engineering reorganization and expansion dirigibility greatly.
Summary of the invention
Technical matters to be solved by this invention provides a kind of intelligent substation modelling software, is implemented in the design phase to finish the configuration of the complete data model of intelligent substation and is connected with data stream, and realization information is once imported, and is shared alternately.
For solving the problems of the technologies described above, the invention provides a kind of graphical intelligent substation model implementation method based on CAD, it is characterized in that, may further comprise the steps:
1) two functional modules are set in CAD respectively: the graphics edition module is used to draw conventional drawing and extended attribute defined function; The model editing module is used for final generation model file, supports the senior functions such as importing, derivation, editor and verification of file, and described graphics edition module and model editing module are finished the sharing operation of model information by visit XML database interface;
2) the pel piece of each equipment in first and second system of definition transformer station comprises isolating switch, disconnector, mutual inductor, transformer, bus, protective device, merge cells etc.;
3) all pel pieces add extended attribute by the information of requirement in the IEC 61850-6 standard, and extended attribute comprises: IED title, logical device LD (Logical Device) title, logic node LN (Logical Node) title, prefix name prefix, instance number inst (Instance number), empty terminal open into and leave title etc.;
4) definition special map layer is drawn the first and second system wiring figure of transformer station, electric substation automation system network chart and empty terminal connection layout respectively, the pel piece with IEC 61850-6 extended attribute that all kinds of pel pieces in the figure layer all adopt step 3) to generate;
5) generate pel piece extended attribute value according to wiring and network chart, the extended attribute value is imported the XML database according to IEC 61850-6 standard;
6) generation and edit model, reading of data generates the SCD model file from the XML database, or amended model file is imported database reverse correlation figure, and the model that imports, derive is carried out the grammer verification.
Aforesaid graphical intelligent substation model implementation method based on CAD, it is characterized in that: in described step 5), pel piece attribute is stored in the XML database by the output of the file layout of XML, make graphics edition module and model editing module can both from database, obtain the information that needs, realize information sharing.
The beneficial effect that the present invention reached:
The present invention is by the graphical model design software of exploitation one cover based on CAD, intelligent substation design and system integration work are merged, be implemented in the design except that finishing conventional transformer station's first and second wiring diagram, the ICD model file that can also provide according to each equipment vendors and the configuration principle of transformer station's first and second equipment are finished the complete data model configuration in full station and are connected with the data stream of transformer station.Complete data model comprises the SSD file that reacts primary connection and comprises SSD, ICD and the SCD file of data stream configuration that data stream connects and comprises that general OO transformer substation case GOOSE (Generic Object Oriented SubStation Event) is connected with the empty terminal of sampling SV (Sampled Values).Accomplish that really information is only imported once in the transformer station, realize sharing of information, on design level, improve and realize the opening of intelligent substation by alternant way.Designing institute can directly provide a complete set of drawing and transformer station's allocation models file, instruct engineering construction, debugging, not needing to adopt configuration tool separately by manufacturer again is model file with design drawing " translation ", for the maintenance and the reorganization and expansion of engineering from now on facilitates.
Description of drawings
Fig. 1 is existing intelligent substation design flow diagram.
Fig. 2 is software overall plan figure of the present invention.
Fig. 3 is for adopting intelligent substation design flow diagram of the present invention.
Fig. 4 is the associated diagram of software module among the present invention and XML database.
With certain transformer station is example, the graphical intelligent substation model implementation method based on CAD of the present invention, and concrete implementation step is as follows:
1) the pel piece of each equipment in first and second system of definition transformer station, as: isolating switch, disconnector, mutual inductor, transformer, bus, protective device, merge cells etc.
2) all pel pieces add extended attribute by the information of requirement in the IEC 61850-6 standard, as: IED title, logical device LD (Logical Device) title, logic node LN (Logical Node) title, prefix name prefix, instance number inst (Instance number), empty terminal open into and leave title etc.Wherein logic node LN (Logical Node) title, prefix name prefix, instance number inst (Instance number), empty terminal open into and leave title etc. and can directly import by the mounted cast that device manufacturer provides.
3) definition special map layer, draw the first and second system wiring figure of transformer station, electric substation automation system network chart and empty terminal connection layout respectively, all kinds of pel pieces in the figure layer all adopt the piece (i.e. the pel piece of (2) step generation) with IEC 61850-6 extended attribute.
4) can generate pel piece extended attribute value automatically by software according to wiring and network chart, and the extended attribute value be imported the XML database according to the IEC61850-6 standard.
5) reading of data generates the SCD model file from the XML database.
Adopt intelligent substation design cycle after said method improves for as shown in Figure 3.Fig. 4 is the synoptic diagram that graphics edition module and model editing module are passed through the information sharing of XML database implementation model.
The present invention has following characteristics:
1) design of intelligent transformer station, be reduced to " behind the device manufacturer generator model designing institute directly design and generation model file " by in the past " designing institute provides the system design drawing---each system manufacturer input engineering information generation system model---, and device manufacturer generator model generates full station allocation models by system manufacturer ", with conventional 220kV transformer station is example, to reduce the relevant artificial repetition input information work of nearly 200 device, avoid the possible mistake of this link.
2) in construction, debugging, the maintenance, the link of in the past " designing institute's revisions on drawings---information is re-entered by integrator; re-generate the SCD model file---equipment vendor re-generates the CID model file " will be reduced to " designing institute revises and the generation model file ", reduce in engineering construction, debugging, the maintenance dependence to manufacturer greatly.
3) during the engineering reorganization and expansion, because directly by designing institute's design and generation model file, therefore no longer be confined to the configuration tool of former engineering manufacturer, manufacturer selects more flexible.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.