CN112464320B - Visual drawing method for power distribution network planning scheme based on standard primitives - Google Patents
Visual drawing method for power distribution network planning scheme based on standard primitives Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/12—Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0637—Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/04—Power grid distribution networks
Abstract
The invention discloses a power distribution network planning scheme visual drawing method based on standard primitives, which comprises the following steps: summarizing the primitives used in the existing planning process, and establishing a universal standard primitive library by combining the primitives integrated into the pipe network equipment primitives and the building facility primitives; synchronizing GIS original data through an interface at regular time; cleaning the obtained GIS data, and only reserving equipment topology data required by planning; performing graphical element conversion on out-of-station equipment, in-station equipment and GIS point-plane equipment in the topology data, and performing longitude and latitude processing; rendering on canvas based on the converted current power grid topology graph data; and superposing the current power grid drawn with the planned electric equipment with the current layer and the satellite layer respectively. By implementing the method and the device, drawing efficiency and planning effect can be improved.
Description
Technical Field
The invention relates to the technical field of power distribution network planning, in particular to a power distribution network planning scheme visual drawing method based on standard primitives.
Background
At present, in the process of drawing a project planning scheme, a power distribution network planner draws a Computer Aided Design (CAD) electrical wiring diagram mainly based on a project table and through CAD software, generally lacks electrical equipment topological connection relation, and cannot effectively utilize the geographical situation of clearly displaying grid lines along a layout and the conversion process of a planning target net rack.
The CAD drawing tool has professional drawing capability, can meet the requirement of power distribution network planning on special primitives, but cannot access power grid data (equipment graphics, equipment accounts, equipment topological relations and the like), needs to clean, customize and import and export the data, is complex in operation and cannot be updated in time.
Moreover, the CAD tool needs to manually import the geographic edge layout and the power grid topological graph as maps, so that the operation is inconvenient and the data update is not timely; meanwhile, the primitives of the planning schemes of all units are not unified, and the schemes draw equipment primitives and building facility primitives which need to depend on a pipe network; it is difficult to meet the functional requirements drawn by the planning schemes associated with power distribution network planning.
In the present technology, a GIS (geographic information system) dedicated for electric power is a production management integrated information system in which electric power facilities, substations, power transmission and distribution networks, electric power consumers, electric power loads, and the like of an electric power company are connected to form electric power informatization. The power equipment information, the power grid running state information, the power technology information, the production management information, the power market information, the mountain, the topography, the towns, the roads and the natural environment information such as weather, hydrology, geology, resources and the like are provided by the system and are concentrated in a unified system. Related data, pictures, images, maps, technical data, management knowledge and the like can be queried through GIS. However, the GIS system is a power grid equipment maintenance inlet and is responsible for managing power grid equipment graph and model data and topology relation, and the data can be updated in real time. However, the main maintenance equipment object is put into operation, and the power distribution network planning scheme draws a to-be-put-into-operation state (i.e. a planning state), so that the GIS cannot maintain the planning state data, and the primitive customization has limitations (the station room interval use condition cannot be intuitively presented), so that the requirement of the power distribution network planning on the primitives cannot be completely met.
Therefore, a set of standard primitive libraries and a visual drawing method based on a planning scheme of a geographic edge layout, a power grid topological graph and a planning target grid graph are required to be established urgently.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the visual drawing method of the power distribution network planning scheme based on the standard graphic elements, which can create unified graphic element specifications of power distribution network planning equipment and improve drawing efficiency and planning effect.
The technical scheme adopted by the invention is that the visual drawing method of the power distribution network planning scheme based on the standard graphic primitives is provided, and is characterized by comprising the following steps:
step S10, summarizing the primitives used in the existing planning process, and establishing a primitive library applicable to the general standard of planning service by combining the primitives integrated into the pipe network equipment and the building facility;
step S11, synchronizing GIS original data through an interface at regular time;
step S12, cleaning the obtained GIS data, and only reserving equipment topology data required by planning, wherein the equipment topology data at least comprises the following steps: substation, medium voltage line and station house equipment information;
step S13, performing primitive conversion on out-of-station equipment, in-station equipment and GIS point-surface equipment in the topology data, and performing longitude and latitude processing;
step S14, rendering is carried out on canvas based on the converted current power grid topological graph data, planning-state electrical equipment is drawn on the current power grid, current situation and planning are integrated, and the connection relation between the current equipment and planning equipment is established;
and S15, loading map tiles, and respectively superposing the current power grid of the electrical equipment with the planned state with the current layer and the satellite layer.
Preferably, the step S13 further includes:
and converting the out-of-site equipment data into editable graphic structure data, storing the editable graphic structure data into a database, and replacing corresponding graphic elements according to the planning graphic source library.
Preferably, the step S13 further includes:
converting GIS station room equipment from point equipment to surface equipment; and combing topological relation of the equipment in the station, determining topological structure of the equipment in the station room, calculating longitude and latitude of the equipment in the station by combining a spatial topological algorithm, and dynamically generating corresponding graphic elements of the equipment in the station.
Preferably, the spatial topology algorithm specifically includes the following functions:
new_sweep (), generating a new data structure of scan line state, and returning a variable of the type sweep_status;
add_left (S, S), when encountering an event point of a left half line segment type in the scanning process, inserting a line segment element S corresponding to the left half line segment into the variable S of the sweep_status type, and returning to a scanning line state after inserting the line segment;
del_right (S, S), deleting a line segment element corresponding to the right half line segment in the scan line when an event point of the right half line segment type is encountered in the scan process, wherein the definition of S, S and a return value is the same as add_left (S, S);
pred_of (S, elem), locating the precursor of the spatial element elem in the scan line state, that is, determining the position of the largest element in the set of elements which exist in S and are smaller than the elem according to the ordering rule of the scan line, setting the data item current of S to point to the precursor of the elem according to the operation result, current=0 indicating that the precursor is not present, and returning to the scan line state after current is set;
current_exists (S), when the data item current=0 of S, returning FALSE, otherwise, returning TRUE;
set_attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr is the attribute set;
get_attr (S) takes the attribute of the spatial element pointed by current in S and returns the attribute set.
Preferably, the step S13 further includes:
and establishing a connection relation between the line and a certain point on four sides of the transformer substation in a graph, establishing a relation with a central point of station room equipment, converting the transformer substation into point equipment, converting the station room equipment into surface equipment, and shifting the position of the head end or the tail end of a feeder line to enable an outgoing line of the transformer substation to be connected with the central point of the transformer substation, wherein the line connected with the station room is connected with specific switch equipment.
Preferably, the step S14 further includes:
rendering on a canvas based on the converted current power grid topology graph data by using an openlayer3 technology, drawing planning-state electrical equipment on the current power grid, realizing fusion of current situation and planning, establishing a connection relation between the current equipment and the planning equipment, and supporting planning-state electrical calculation check;
preferably, the step S15 further includes:
map tiles are loaded through a Geoserver technology, and the current power grid of the electrical equipment with the planned state is respectively overlapped with a current layer and a satellite layer, so that differential comparison between the current state and a target grid structure is realized, and planning analysis is assisted.
The implementation of the invention has the following beneficial effects:
the embodiment of the invention provides a visual drawing method of a power distribution network planning scheme based on standard primitives, which defines primitives of various devices related to a power distribution network by creating unified power distribution network planning equipment primitive specifications, supports drawing of a target grid frame and drawing of the power distribution network planning scheme, and realizes real-time synchronization with GIS data; the method can display the line trend and the equipment distribution point based on the map, automatically generate multiple intervals for station room equipment according to technical parameters, ensure that the residual interval capacity of the station room is clear at a glance, and realize the establishment of the topological relation between the switch and the line;
the embodiment of the invention can realize the graphical element presentation and visual display of the inter-room space condition of the power distribution station, and realize the establishment of the topological relation between the inter-room space switch and the line, thereby being convenient and quick and having good drawing effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that it is within the scope of the invention to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
Fig. 1 is a schematic flow chart of an embodiment of a visual drawing method for a power distribution network planning scheme based on standard primitives;
FIG. 2 is a schematic diagram of the electrical portion involved in FIG. 1;
FIG. 3 is a schematic diagram of the primitives involved in the civil engineering section of FIG. 1;
FIG. 4 is a schematic drawing of a graphical element of the portion of the building facility referred to in FIG. 1;
FIG. 5 is a schematic diagram of the spatial topology algorithm referred to in FIG. 1;
FIGS. 6 a-6 c are exemplary schematic diagrams of the in-station device transitions involved in FIG. 1;
FIG. 7a is an exemplary schematic diagram of the point-to-face device conversion referred to in FIG. 1;
FIG. 7b is an exemplary schematic diagram of the latitude and longitude process involved in FIG. 1;
FIG. 8 is an interface schematic diagram of the electrical device involved in FIG. 1 drawing a planned state on a current grid;
FIG. 10 is a schematic illustration of the effect of superimposing the drawn grid and the current layer referred to in FIG. 1;
fig. 9 is a schematic diagram of the effect of superimposing the drawn grid and satellite layers referred to in fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The objects, technical solutions and advantages of the present invention will be further described with reference to the drawings and examples below to make those skilled in the art more clearly understand the present invention.
First, some terms related to the present invention will be described:
CAD: that is, the computer aided design (Computer Aided Design) helps the designer to perform the design work by using a computer and its graphic device.
GIS: that is, the geographic information system is an integration of efficiently acquiring, storing, updating, operating, analyzing and displaying geographic information of any form, which is organized by computer hardware, software, geographic data and system management personnel.
Primitives generally refer to basic graphical elements. The power equipment graphic elements are patterns expressed by different equipment images of the pointing line surface.
Please describe with reference to fig. 1, a schematic main flow chart of an embodiment of a power distribution network planning scheme visual drawing method based on standard primitives provided by the present invention is shown; as shown in fig. 2 to 10, in this embodiment, the method specifically includes the following steps:
step S10, summarizing the primitives used in the existing planning process, and establishing a primitive library applicable to the general standard of planning service by combining the primitives integrated into the pipe network equipment and the building facility; the method can be used for building the primitives such as a transformer substation, a cable/overhead, a ring main unit, an switching station, a connecting cabinet, a station transformer, a box transformer, an indoor transformer, a pole-mounted circuit breaker, a pole-mounted disconnecting link, automatic equipment and the like; by establishing a universal and standard primitive library, the readability and normalization of planning results can be improved.
In particular, as shown in fig. 2, an example of a primitive of an electrical section is shown, it being understood that this is by way of example only and not by way of exhaustive illustration, and that other primitives are not shown. Wherein different colors can be used for representing different devices, and the colors of the devices and the lines can be consistent.
As shown in fig. 3, a primitive example of the civil engineering part is shown, and in a specific body, the newly built trench engineering drawing is described by a "broken line", and attention is paid to the association with the underground pipe network digital management and control system stock trench data.
As shown in fig. 4, an example of a primitive for a portion of a building facility is shown. In a specific example, similar to the google earth software, the method can support the pasting of a legend and the input of related attributes; boundaries (optional fills) are depicted on the GIS map and allow uploading of live pictures.
Step S11, synchronizing GIS original data through an interface at regular time;
step S12, cleaning the obtained GIS data, and only reserving equipment topology data required by planning, wherein the equipment topology data at least comprises the following steps: substation, medium voltage line and station house equipment information;
step S13, performing primitive conversion on out-of-station equipment, in-station equipment and GIS point-surface equipment in the topology data, and performing longitude and latitude processing;
the following are respectively described for out-of-station equipment, in-station equipment and GIS point-surface equipment:
in a specific example, for the out-station device, the step S13 further includes:
and converting the out-of-site equipment data into editable graphic structure data, storing the editable graphic structure data into a database, and replacing corresponding graphic elements according to the planning graphic source library.
In a specific example, for the in-station device, the step S13 further includes:
the GIS station room equipment is point equipment, and the GIS station room equipment is converted into surface equipment from the point equipment; GIS does not have longitude and latitude of equipment in a station, firstly, carding topological relation of equipment in the station, determining topological structure of equipment in a station room, combining a spatial topological algorithm, calculating longitude and latitude of equipment in the station, and dynamically generating corresponding graphic elements of the equipment in the station. Fig. 5 and fig. 6a to 6c are combined together.
More specifically, the spatial topology algorithm specifically includes the following functions:
new_sweep (), generating a new data structure of scan line state, and returning a variable of the type sweep_status;
add_left (S, S), when encountering an event point of a left half line segment type in the scanning process, inserting a line segment element S corresponding to the left half line segment into the variable S of the sweep_status type, and returning to a scanning line state after inserting the line segment;
del_right (S, S), deleting a line segment element corresponding to the right half line segment in the scan line when an event point of the right half line segment type is encountered in the scan process, wherein the definition of S, S and a return value is the same as add_left (S, S);
pred_of (S, elem), locating the precursor of the spatial element elem in the scan line state, that is, determining the position of the largest element in the set of elements which exist in S and are smaller than the elem according to the ordering rule of the scan line, setting the data item current of S to point to the precursor of the elem according to the operation result, current=0 indicating that the precursor is not present, and returning to the scan line state after current is set;
current_exists (S), when the data item current=0 of S, returning FALSE, otherwise, returning TRUE;
set_attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr is the attribute set;
get_attr (S) takes the attribute of the spatial element pointed by current in S and returns the attribute set.
In a specific example, the performing the primitive conversion and the longitude and latitude processing on the GIS point-surface device may be shown in fig. 7a and 7b, and the step S13 further includes:
in GIS, the transformer substation is surface equipment, the station room is point equipment, the connection relation between the line on the graph and a certain point on the four sides of the transformer substation is established, and the connection relation is established with the center point of the station room equipment. Thus, the scale and the utilization of the switching equipment in the station can be clearly shown.
Step S14, rendering is carried out on canvas based on the converted current power grid topological graph data, planning-state electrical equipment is drawn on the current power grid, current situation and planning are integrated, and the connection relation between the current equipment and planning equipment is established;
specifically, the step S14 further includes:
rendering on a canvas based on the converted current power grid topology graph data by using an openlayer3 technology, drawing planning-state electrical equipment on the current power grid, realizing fusion of current situation and planning, establishing a connection relation between the current equipment and the planning equipment, and supporting planning-state electrical calculation check; please refer to fig. 8. In a specific operation, a drag operation may be performed;
and S15, loading map tiles, and respectively superposing the current power grid of the electrical equipment with the planned state with the current layer and the satellite layer.
Specifically, the step S15 further includes:
map tiles are loaded through a Geoserver technology, and the current power grid of the electrical equipment with the planned state is respectively overlapped with a current layer and a satellite layer, so that differential comparison between the current state and a target grid structure is realized, and planning analysis is assisted. Please refer to fig. 9 and 10, respectively.
The implementation of the invention has the following beneficial effects:
the embodiment of the invention provides a visual drawing method of a power distribution network planning scheme based on standard primitives, which defines primitives of various devices related to a power distribution network by creating unified power distribution network planning equipment primitive specifications, supports drawing of a target grid frame and drawing of the power distribution network planning scheme, and realizes real-time synchronization with GIS data; the method can display the line trend and the equipment distribution point based on the map, automatically generate multiple intervals for station room equipment according to technical parameters, ensure that the residual interval capacity of the station room is clear at a glance, and realize the establishment of the topological relation between the switch and the line;
the embodiment of the invention can realize the graphical element presentation and visual display of the inter-room space condition of the power distribution station, and realize the establishment of the topological relation between the inter-room space switch and the line, thereby being convenient and quick and having good drawing effect.
The above disclosure is only a preferred embodiment of the present invention, and it is needless to say that the scope of the invention is not limited thereto, and therefore, the equivalent changes according to the claims of the present invention still fall within the scope of the present invention.
Claims (3)
1. A power distribution network planning scheme visual drawing method based on standard primitives is characterized by comprising the following steps:
step S10, summarizing the primitives used in the existing planning process, and establishing a primitive library applicable to the general standard of planning service by combining the primitives integrated into the pipe network equipment and the building facility;
step S11, synchronizing GIS original data through an interface at regular time;
step S12, cleaning the obtained GIS data, and only reserving equipment topology data required by planning, wherein the equipment topology data at least comprises the following steps: substation, medium voltage line and station house equipment information;
step S13, performing primitive conversion on out-of-station equipment, in-station equipment and GIS point-surface equipment in the topology data, and performing longitude and latitude processing;
step S14, rendering is carried out on canvas based on the converted current power grid topological graph data, planning-state electrical equipment is drawn on the current power grid, current situation and planning are integrated, and the connection relation between the current equipment and planning equipment is established;
step S15, superposing the current power grid of the electrical equipment with the planned state with a current layer and a satellite layer respectively;
the step S13 further includes:
converting the out-of-site equipment data into editable graphic structure data, storing the editable graphic structure data into a database, and replacing corresponding graphic elements according to a planning graphic source library;
converting GIS station room equipment from point equipment to surface equipment; combing topological relation of the equipment in the station, determining topological structure of the equipment in the station, calculating longitude and latitude of the equipment in the station by combining a spatial topological algorithm, and dynamically generating corresponding primitives of the equipment in the station;
establishing a connection relation between a line and a certain point on four sides of a transformer substation in a graph, establishing a relation with a central point of station room equipment, converting the transformer substation into point equipment, converting the station room equipment into surface equipment, and shifting the position of the head end or the tail end of a feeder line to enable an outgoing line of the transformer substation to be connected with the central point of the transformer substation, wherein the line connected with the station room is connected with specific switch equipment;
the spatial topology algorithm specifically comprises the following functions:
new_sweep (), generating a new data structure of scan line state, and returning a variable of the type sweep_status;
add_left (S, S), when encountering an event point of a left half line segment type in the scanning process, inserting a line segment element S corresponding to the left half line segment into the variable S of the sweep_status type, and returning to a scanning line state after inserting the line segment;
del_right (S, S), deleting a line segment element corresponding to the right half line segment in the scan line when an event point of the right half line segment type is encountered in the scan process, wherein the definition of S, S and a return value is the same as add_left (S, S);
pred_of (S, elem), locating the precursor of the spatial element elem in the scan line state, that is, determining the position of the largest element in the set of elements which exist in S and are smaller than the elem according to the ordering rule of the scan line, setting the data item current of S to point to the precursor of the elem according to the operation result, current=0 indicating that the precursor is not present, and returning to the scan line state after current is set;
current_exists (S), when the data item current=0 of S, returning FALSE, otherwise, returning TRUE;
set_attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr is the attribute set;
get_attr (S) takes the attribute of the spatial element pointed by current in S and returns the attribute set.
2. The method of claim 1, wherein the step S14 further comprises:
rendering on a canvas based on the converted current power grid topology graph data by using an openlayer3 technology, drawing planning-state electrical equipment on the current power grid, realizing fusion of current situation and planning, establishing a connection relation between the current equipment and the planning equipment, and supporting planning-state electrical calculation check;
3. the method of claim 2, wherein the step S15 further comprises:
map tiles are loaded through a Geoserver technology, and the current power grid of the electrical equipment with the planned state is respectively overlapped with a current layer and a satellite layer, so that differential comparison between the current state and a target grid structure is realized, and planning analysis is assisted.
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| CN113657800A (en) * | 2021-08-26 | 2021-11-16 | 广东电网有限责任公司 | Planning scheme compiling method and device for distribution network project, computer equipment and medium |
| CN114936442B (en) * | 2022-07-22 | 2022-12-09 | 国网江西省电力有限公司电力科学研究院 | System and method for accurately positioning power distribution network equipment and forming topological graph |
| CN115081158B (en) * | 2022-08-23 | 2022-11-11 | 成都中科合迅科技有限公司 | Graphic element display method based on digital expression |
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