CN110930476B - Substation panoramic view automatic generation method integrating primary and secondary equipment - Google Patents
Substation panoramic view automatic generation method integrating primary and secondary equipment Download PDFInfo
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- CN110930476B CN110930476B CN201911239671.2A CN201911239671A CN110930476B CN 110930476 B CN110930476 B CN 110930476B CN 201911239671 A CN201911239671 A CN 201911239671A CN 110930476 B CN110930476 B CN 110930476B
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- 238000004364 calculation method Methods 0.000 abstract description 5
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Abstract
The invention discloses an automatic generation method of a panoramic view of a transformer substation integrating secondary equipment, relates to a method special for data processing of a power system, and belongs to the technical field of calculation, calculation or counting. According to the invention, the SCD file is analyzed to construct a secondary model object relation of the transformer substation, a normalized space dotted line model is formed, the primary equipment wiring type is automatically identified, meanwhile, the transformer substation model description based on IEC61970/CIM is supported, the automatic layout and wiring technology is utilized to generate a panoramic view of the transformer substation, the equipment position is automatically acquired on the basis of the primary equipment model view, the corresponding secondary equipment position relation is dynamically calculated, and drawing and superposition are performed. The method has important and wide application prospects for reducing maintenance and management difficulty of the intelligent station, improving integration of upstream and downstream information of the power grid and intelligent scheduling.
Description
Technical Field
The invention discloses an automatic generation method of a panoramic view of a transformer substation integrating secondary equipment, relates to a method special for data processing of a power system, and belongs to the technical field of calculation, calculation or counting.
Background
IEC61850 models most common real devices and device components, such as: substation and feeder devices (such as circuit breakers, voltage regulators, relay protection, etc.), these models define common data formats, identifiers, behaviors, and controls. The model and the graph generated by the theoretical downstream transformer substation can be converted into CIM/XML and SVG/XML format files and then uploaded to an upstream dispatching master station EMS system, and the system full model and the graph are automatically imported and built at the dispatching master station end, so that the repeated modeling and drawing of the EMS master station system are avoided, and the unique data source is realized. However, the requirements of the side views of the practical application transformer substations are different, the upstream EMS is inconsistent with the downstream transformer substation automation systems, and the description styles of the transformer substation automation systems from different areas are inconsistent with the description styles of the transformer substation graphics, so that the transformer substation logic views of the unified styles meeting different application requirements are automatically constructed by directly utilizing model information in SCD or CIM by means of the transformer substation automatic mapping technology.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a substation panoramic view automatic generation method integrating secondary equipment, which constructs a substation secondary model object relation by analyzing SCD files to form a normalized space dotted line model, automatically identifies primary equipment wiring types, simultaneously supports substation model description based on IEC61970/CIM, utilizes an automatic layout and wiring technology to generate a substation panoramic view, automatically acquires equipment positions on the basis of the primary equipment model view, dynamically calculates corresponding secondary equipment position relation, draws and superimposes the corresponding secondary equipment position relation, provides a unified type substation logic view for different area substation automation systems, and solves the technical problem that an upstream dispatching master station EMS system needs to generate views adapting to application requirements of all substations according to the area characteristics of downstream substations and the description styles of the substations.
The invention adopts the following technical scheme for realizing the purposes of the invention:
a substation panoramic view automatic generation method integrating secondary equipment comprises the following steps:
A. transforming a substation SCD model;
B. automatically generating a multi-side panoramic view;
C. and (5) dynamically superposing and fusing the secondary equipment.
As a further optimization scheme of the substation panoramic view automatic generation method integrating secondary equipment, the step a generally comprises the following steps:
a) The interval equipment arrangement sequence is identified, interval description exists in IEC 61850/SCD, but no arrangement information of equipment in the interval is needed when automatic mapping is performed, and the interval information in IEC61970/CIM is not strict (unnecessary information), so that automatic program identification is needed. The automatic mapping abstracts the whole interval into a virtual device with terminals and topology nodes, and multiplexes the topology nodes between intervals. The main equipment is traversed inwards by the interval outer boundary nodes to determine trunk branches in the interval, and the rest are branch branches.
b) The automatic recognition of the wiring type is realized by adopting a mode of automatic recognition and manual auxiliary recognition, and the automatic recognition can be realized for the standard main wiring mode, and the special type needs to be realized by means of manual recognition, so that the complexity of the automatic recognition is reduced, and the recognition accuracy is improved.
As a still further optimization scheme of the substation panoramic view automatic generation method integrating secondary equipment, the step B mainly comprises automatic generation of a substation view and automatic generation of a macroscopic tide diagram.
a) The plant diagram layout object is a voltage class unit and a transformer unit in the plant, and the wiring object is a connecting wire between the transformer unit and each voltage class unit. The point objects in the layout are voltage classes, the line objects are transformer branch connection lines, the points in the space are arranged into a plurality of rows according to approximate geographic distribution by utilizing a row layout mode, the point objects can move up and down and left and right, meanwhile, the point objects are supported to be horizontally or vertically arranged, the point objects are rectangular, and the internal main wiring of the point objects is unfolded by taking the interval as a unit.
b) And automatically completing information extraction and screening based on an IEC61850 substation model, merging the station end model into a large power grid model through a model splicing technology according to a mapping relation with IEC61970, and realizing a macroscopic tidal current diagram graph meeting scheduling requirements by utilizing a panoramic view automatic generation technology.
The specific method of the step C is that for secondary equipment such as a voltage transformer, a current transformer and protection, the topological connection mode is simpler, the secondary equipment is mostly expressed in the form of a merging unit on a wiring diagram, after primary equipment is drawn, key nodes of the circuit equipment are obtained according to the topological relation between the secondary equipment and the primary equipment arrangement trend, and the secondary equipment is automatically drawn at the key nodes.
The invention adopts the technical scheme and has the following beneficial effects: the method comprises the steps of forming a normalized space dotted line model by constructing a secondary model object relation of a transformer substation, automatically identifying the wiring type of primary equipment, generating a panoramic view of the transformer substation, which is fused with a station diagram and a full-network tidal current diagram, by utilizing an automatic layout and wiring technology, automatically acquiring the position of the equipment on the basis of the primary equipment model view, dynamically calculating the position relation of corresponding secondary equipment, and drawing and superposing. The method reduces the maintenance and management difficulty of the substation pattern, improves the automation level of the substation, promotes the integration of the upstream and downstream information of the power grid, and realizes the panoramic picture integration and the synchronous updating of the pattern of the power system. And unified and reliable power grid logic view support is provided for power grid operation and dispatching service management, and the safe operation level of the power grid is improved.
Drawings
Fig. 1 is an overall flow chart of generating a panoramic view of the present application.
Fig. 2 is a schematic diagram of a typical interval division of a substation.
Fig. 3 is a flow chart of the plant layout wiring.
Fig. 4 is a schematic diagram of the dynamic superposition effect of the secondary device.
Fig. 5 is a flowchart of secondary device mounting position calculation.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
The application discloses an automatic generation method of a panoramic view of a transformer substation integrating secondary equipment, and the specific flow is shown in fig. 1, and comprises the following A, B, C steps.
A. Substation SCD model transformation
a) The interval equipment arrangement sequence is identified, interval description exists in IEC 61850/SCD, but no arrangement information of equipment in the interval is needed when automatic mapping is performed, and the interval information in IEC61970/CIM is not strict (unnecessary information), so that automatic program identification is needed. The automatic mapping abstracts the whole interval into a virtual device with terminals and topology nodes, and multiplexes the topology nodes between intervals. The main branch inside the interval is determined by traversing the main equipment inwards by the interval outer boundary node, the rest is branch, a typical substation interval division is shown in fig. 2, and the topological relation of the primary equipment and the secondary equipment is established according to the secondary equipment model extracted from the SCD file and the identified interval.
b) The automatic recognition of the wiring type is realized by adopting a mode of automatic recognition and manual auxiliary recognition, the automatic recognition can be realized for a standard main wiring mode, the wiring type discrimination is realized by adopting a principle of pattern matching based on an extensible typical logic rule base (comprising a bus connection branch rule, a double bus power supply branch rule, a side bus power supply branch rule, a bus multi-segmentation rule, a 3/2 branch rule, a load branch rule, a power point branch rule and the like). The special type needs to use a manual identification mode to reduce the complexity of automatic identification and improve the identification accuracy.
B. Multi-sided panoramic view auto-generation
a) The plant diagram layout objects are the voltage class units (bus bar intervals, switch intervals and line intervals shown in fig. 2) and the transformer units (main transformer intervals shown in fig. 2) in the plant, and the wiring objects are connecting wires between the transformer units and the voltage class units. The point objects in the layout are voltage classes, the line objects are transformer branch connection lines, the points in the space are arranged into a plurality of rows according to the approximate geographic distribution by utilizing a row layout mode, the point objects can move up and down and left and right, meanwhile, the point objects are supported to be horizontally or vertically arranged, the point objects are rectangular, the internal main wiring of the point objects is unfolded by taking the interval as a unit, and the specific algorithm is as shown in the following figure 3: firstly, judging whether a layout object contains a bus or not according to a main wiring identification result of the layout object obtained in the step A, calculating and sequencing a wire outlet interval for the layout object containing the bus, drawing a segmentation interval, a bus connection interval, a bypass interval and a wire outlet interval after calculating the length of the bus, drawing the wire outlet interval after obtaining the position of a transformer for the layout object which does not contain the bus, and drawing a circuit after determining the position of a turning point of a wiring according to the drawn interval.
b) And automatically completing information extraction and screening based on an IEC61850 substation model, merging the station end model into a large power grid model through a model splicing technology according to a mapping relation with IEC61970, and realizing a macroscopic tidal current diagram graph meeting scheduling requirements by utilizing a panoramic view automatic generation technology.
C. Dynamic superposition fusion of secondary equipment
For secondary equipment such as a voltage transformer, a current transformer and protection, the topological connection mode is simple, the topology connection mode is expressed in a merging unit mode on a wiring diagram, double bus outgoing lines are used as an example, as shown in fig. 4, after primary equipment drawing is completed, key nodes of the equipment are obtained according to the topological relation between secondary equipment and the arrangement trend of the primary equipment, and the nodes can be arranged on buses, can be arranged on one side of double-node equipment such as a switch knife gate, and can also be arranged on one side of other single-node equipment. For example, if the PT is mounted on the bus, the node on the bus is taken, the bus is drawn horizontally, and if the corresponding PT can be outgoing upward or downward, the corresponding PT primitive is drawn in a T-connection mode. The key location determination process generally includes the following:
1) Determining the position and trend of primary equipment;
2) Determining the position of a node connected with secondary equipment;
3) And (5) collision-free treatment with primary equipment.
The specific flow is shown in fig. 5: constructing a topological relation of the secondary equipment and acquiring key nodes associated with the secondary equipment according to the topological relation between the secondary equipment and the primary equipment arrangement trend; when a key node is arranged on a bus, calculating an initial direction of secondary equipment after determining a bus idle position, when the secondary equipment is associated with the key node and is not overlapped with the existing primary equipment position, determining that the current key node and the initial direction are the position and wiring trend of the associated secondary equipment, and when the secondary equipment is associated with the key node and is overlapped with the existing primary equipment position, iteratively calculating and searching idle positions around the key node until the secondary equipment is not overlapped with the primary equipment position; when the key node is at one side of the double-node equipment, determining the position of the key node side and the initial direction of the secondary equipment after the equipment is moved to the back, when the secondary equipment is associated with the position of the existing primary equipment after the key node and is not overlapped, determining the current key node and the initial direction as the position and wiring trend of the associated secondary equipment, and when the secondary equipment is associated with the position of the existing primary equipment after the key node and is overlapped, iteratively calculating and searching for idle positions around the key node until the secondary equipment is not overlapped with the position of the primary equipment; when the key node is at the single-node primary equipment side, determining the primary equipment running direction and then calculating the initial direction of the secondary equipment, when the secondary equipment is associated with the position of the primary equipment and is not overlapped with the position of the existing primary equipment after the key node, determining the current key node and the initial direction as the position and wiring trend of the associated secondary equipment, and when the secondary equipment is associated with the position of the primary equipment and is overlapped with the position of the existing primary equipment after the key node, iteratively calculating and searching idle positions around the key node until the secondary equipment is not overlapped with the position of the primary equipment.
The association rule between the secondary measurement point information and the primary equipment can be summarized as the following points:
1) The functions and information in the secondary equipment are associated with the primary equipment through a logic node;
2) According to the logic node, the secondary equipment and the primary equipment are associated, and the measurement point information of the secondary equipment under the logic node is associated to the relevant interval through the interval of the association of the primary equipment;
3) The secondary device and the primary device are not associated, and the secondary measuring point is directly associated to the transformer substation.
The invention discloses an automatic generation method of a panoramic view of a transformer substation integrating secondary equipment. According to the method, the SCD file is analyzed to construct a secondary model object relation of the transformer substation, a normalized space dotted line model is formed, the wiring type of primary equipment is automatically identified, meanwhile, the transformer substation model description based on IEC61970/CIM is supported, the panoramic view of the transformer substation is generated by utilizing an automatic layout and wiring technology, and the secondary equipment relation is automatically overlapped and drawn on the basis of the primary equipment model view.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (3)
1. A substation panoramic view automatic generation method integrating secondary equipment is characterized in that a secondary equipment topological relation is established after a substation SCD model identification interval is analyzed, a voltage grade unit and a transformer unit are used as layout objects, connecting wires between the transformer unit and each voltage grade unit are used as wiring objects, a factory station diagram is generated, the factory station diagram is integrated into a power grid large model to generate a tidal current diagram, and a secondary equipment model and measuring point information are integrated with primary equipment; the method for fusing the secondary equipment model and the measuring point information with the primary equipment comprises the following steps: the method for acquiring the key nodes associated with the secondary equipment according to the topological relation between the secondary equipment and the primary equipment arrangement trend, superposing the secondary equipment model and the primary equipment model in a merging unit mode, associating the secondary equipment measuring point information to the primary equipment, and acquiring the key nodes associated with the secondary equipment according to the topological relation between the secondary equipment and the primary equipment arrangement trend comprises the following steps:
when the key node is on the bus, calculating the initial direction of the secondary equipment after determining the idle position of the bus, when the secondary equipment is associated with the position of the primary equipment and is not overlapped with the position of the existing primary equipment after the key node, determining the current key node and the initial direction as the position and wiring trend of the secondary equipment, iteratively calculating and searching the idle position around the key node when the secondary equipment is associated with the position of the primary equipment and is overlapped with the position of the existing primary equipment until the secondary equipment is not overlapped with the position of the primary equipment,
when the key node is at one side of the double-node equipment, determining the position of the key node side and the initial direction of the secondary equipment calculated after the equipment walk, when the secondary equipment is associated with the position of the existing primary equipment and is not overlapped with the position of the existing primary equipment after the key node, determining the current key node and the initial direction as the position and wiring trend of the secondary equipment, when the secondary equipment is associated with the position of the existing primary equipment and is overlapped with the position of the key node after the key node, iteratively calculating and searching for idle positions around the key node until the secondary equipment is not overlapped with the position of the primary equipment,
when the key node is at the single-node primary equipment side, determining the primary equipment running direction and then calculating the initial direction of the secondary equipment, when the secondary equipment is associated with the position of the primary equipment and is not overlapped with the position of the existing primary equipment after the key node, determining the current key node and the initial direction as the position and wiring trend of the associated secondary equipment, and when the secondary equipment is associated with the position of the primary equipment and is overlapped with the position of the existing primary equipment after the key node, iteratively calculating and searching idle positions around the key node until the secondary equipment is not overlapped with the position of the primary equipment.
2. The automatic generation method of the panoramic view of the transformer substation integrating the secondary equipment according to claim 1, wherein the automatic layout wiring technology is utilized to generate the station view.
3. The automatic generation method of the panoramic view of the transformer substation integrating the secondary equipment according to claim 1, wherein the method for associating the secondary equipment measuring point information to the primary equipment is as follows: and associating the measurement point information of the secondary equipment which is not associated with the primary equipment to the transformer substation through the interval of associating the measurement point information of the secondary equipment to the primary equipment by a logic node in the topological relation of the secondary equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738897A (en) * | 2012-06-14 | 2012-10-17 | 中国电力科学研究院 | Offline configuration resource information fusion method for intelligent substation |
| CN105512213A (en) * | 2016-02-03 | 2016-04-20 | 国家电网公司 | Intelligent substation primary-secondary equipment state information visual displaying method based on configuration files and G language |
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| US11327114B2 (en) * | 2018-06-15 | 2022-05-10 | State Grid Hebei Electric Power Research Institute | Fully-automatic closed-loop detection method and device for intelligent substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738897A (en) * | 2012-06-14 | 2012-10-17 | 中国电力科学研究院 | Offline configuration resource information fusion method for intelligent substation |
| CN105512213A (en) * | 2016-02-03 | 2016-04-20 | 国家电网公司 | Intelligent substation primary-secondary equipment state information visual displaying method based on configuration files and G language |
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