CN112464320A - Power distribution network planning scheme visual drawing method based on standard primitives - Google Patents
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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 general standard primitive library by combining the primitives merged 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 keeping the topology data of the equipment required by planning; performing primitive conversion on the out-station equipment, the in-station equipment and the GIS point-surface equipment in the topological data, and performing longitude and latitude processing; rendering on a canvas based on the converted current power grid topological graph data; and superposing the current power grid of the electrical equipment with the planned state drawn with the current map layer and the satellite map layer respectively. By implementing the method and the device, the drawing efficiency and the 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 planning person mainly draws a computer-aided design (CAD) electrical wiring diagram based on project table compilation and CAD software, generally lacks of topological connection relation of electrical equipment, and cannot effectively utilize geographical edge layout to clearly show the current situation of a grid line and plan a target grid frame conversion process.
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 graphs, equipment ledgers, equipment topological relations and the like), needs to be cleaned, customized, imported and exported, is complex to operate and cannot be updated in time.
Moreover, the CAD tool needs to manually import a geographical edge layout and a power grid topological graph as a map, so that the operation is inconvenient and the data is not updated timely; meanwhile, the graphic elements of each unit planning scheme are not unified, and the scheme draws equipment graphic elements and building facility graphic elements which need to depend on a pipe network; the functional requirements of the power distribution network planning related planning scheme drawing are difficult to meet.
In the present, a Geographic Information System (GIS) dedicated to electric power is a production management integrated information system that connects electric power facilities, substations, transmission and distribution networks of electric power enterprises, electric power consumers, electric power loads, and the like to form electric power informatization. The provided power equipment information, power grid running state information, power technology information, production management information, power market information, mountains, terrains, towns, roads, natural environment information such as weather, hydrology, geology, resources and the like are centralized in a unified system. Related data, pictures, images, maps, technical data, management knowledge and the like can be inquired through the GIS. However, the GIS system is a power grid equipment maintenance entrance, and is responsible for managing power grid equipment graph-model data and topological relations, and can update data in real time. However, the main maintenance equipment object is already put into operation, the distribution network planning scheme draws a state to be put into operation (namely a planning state), the GIS cannot maintain planning state data, and the graphics primitive customization aspect also has limitations (the station and house interval use condition cannot be visually presented), and the requirements of distribution network planning on graphics primitives cannot be completely met.
Therefore, a set of standard primitive database and a planning scheme visualization drawing method based on a geographical edge layout, a power grid topological graph and a planning target grid graph are urgently needed to be established.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a power distribution network planning scheme visual drawing method based on standard primitives, which can create a uniform power distribution network planning equipment primitive specification and improve drawing efficiency and planning effect.
The technical scheme adopted by the invention is that a power distribution network planning scheme visual drawing method based on standard primitives is provided, and the method is characterized by comprising the following steps:
step S10, summarizing the primitives used in the existing planning process, and establishing a general standard primitive library suitable for planning business by combining the primitives merged into the pipe network equipment primitives and the building facility primitives;
step S11, synchronizing GIS original data through interface at regular time;
step S12, cleaning the obtained GIS data, and only retaining the device topology data required for planning, where the device topology data at least includes: information of transformer substation, medium voltage line and station building equipment;
step S13, performing primitive conversion on the out-station equipment, the in-station equipment and the GIS point-plane equipment in the topological data, and performing longitude and latitude processing;
step S14, rendering on canvas based on the converted current situation power grid topological graph data, drawing planning-state electrical equipment on the current situation power grid, realizing fusion of the current situation and the planning, and establishing a connection relation between the current situation equipment and the planning equipment;
and S15, loading map tiles, and overlapping the current power grid of the electrical equipment with the planned state drawn with the current map layer and the satellite map layer respectively.
Preferably, the step S13 further includes:
and converting the data of the off-site equipment into editable graph structure data, storing the editable graph structure data into the database, and replacing the corresponding graphic elements according to the planning graph source library.
Preferably, the step S13 further includes:
converting GIS station house equipment from point equipment to surface equipment; and combing the topological relation of the equipment in the station, determining the topological structure of the equipment in the station house, calculating the longitude and latitude of the equipment in the station by combining a space topological algorithm, and dynamically generating corresponding primitives of the equipment in the station.
Preferably, the spatial topology algorithm specifically includes the following function:
new _ Sweep (), a new data structure of the scanning line state is generated, and a variable of the Sweep _ Status type is returned;
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 the line segment is inserted;
del _ right (S, S), when an event point of the right half segment type is encountered during the scanning process, deleting the segment element corresponding to the right half segment in the scanning line, S, S and the definition of the return value is the same as add _ left (S, S);
pred _ of (S, elem), locating the predecessor 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 elem according to the sorting rule of the scan line, setting the data item current of S to point to the predecessor of elem as the operation result, and returning the scan line state after the current is set, wherein the current is 0 to indicate that the predecessor does not exist;
current _ exists (S), when the data item current of S is 0, return FALSE, otherwise return TRUE;
set _ attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr being the attribute set;
get _ attr (S) takes the attribute of the space element pointed by current in S, and returns an attribute set.
Preferably, the step S13 further includes:
the method comprises the steps of establishing a connection relation between a line and a certain point on four sides of a transformer substation on a graph, establishing a relation between the line and a central point of station house type equipment, converting the transformer substation into point equipment, converting the station house type equipment into surface equipment, offsetting the position of the head end or the tail end of a feeder line, enabling an outgoing line of the transformer substation to be connected with the central point of the transformer substation, and enabling the line connected with the station house to be connected with specific switch equipment.
Preferably, the step S14 further includes:
rendering on a canvas by using an openlayer3 technology based on the converted current power grid topological graph data, drawing planning-state electrical equipment on a current power grid, realizing the fusion of the current state and the planning, establishing a connection relation between the current state equipment and the planning equipment, and supporting the electrical calculation check of the planning state;
preferably, the step S15 further includes:
and loading map tiles by using a Geoserver technology, and superposing the current situation power grid of the electrical equipment with the planned state drawn respectively with a current situation map layer and a satellite map layer to realize the differentiation comparison between the current situation and a target grid structure so as to assist in planning analysis.
The implementation of the invention has the following beneficial effects:
the embodiment of the invention provides a power distribution network planning scheme visual drawing method based on standard primitives, which defines the primitives of various devices related to a power distribution network by creating a unified power distribution network planning device primitive specification, supports target net rack drawing and power distribution network planning scheme drawing, and realizes real-time synchronization with GIS data; the route trend and the equipment distribution can be displayed on the basis of a map, multiple intervals are automatically generated for station room equipment according to technical parameters, the residual interval capacity of the station room is clear at a glance, and the establishment of the topological relation between a switch and a route is realized;
the embodiment of the invention can realize the graphic primitive presentation and visual display of the interval condition in the power distribution station house class, realize the establishment of the topological relation between the interval switch and the line in the station house, and has the advantages of convenience, rapidness and good drawing effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic main flow diagram of an embodiment of a power distribution network planning scheme visualization drawing method based on standard primitives, provided by the present invention;
FIG. 2 is a diagrammatic representation of electrical components referred to in FIG. 1;
FIG. 3 is a schematic diagram of the primitives associated with the civil engineering section of FIG. 1;
FIG. 4 is a pictorial illustration of the elements of the portion of the construction facility referred to in FIG. 1;
FIG. 5 is a schematic diagram of the spatial topology algorithm referred to in FIG. 1;
fig. 6a to 6c are schematic diagrams illustrating examples of the conversion of the in-station equipment referred to in fig. 1;
FIG. 7a is a schematic diagram of an example of a transformation of the point-and-plane apparatus referred to in FIG. 1;
FIG. 7b is an exemplary illustration of the latitude and longitude processing referred to in FIG. 1;
FIG. 8 is a schematic interface diagram of the electrical equipment referenced in FIG. 1 for mapping a planned state on a present power grid;
fig. 10 is a schematic diagram of the effect related to fig. 1 of superimposing the drawn power grid and the current layer;
fig. 9 is a schematic diagram of the effect of overlaying the drawn power grid and the satellite map layer related to fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
For those skilled in the art to more clearly understand the objects, technical solutions and advantages of the present invention, the following description will be further provided in conjunction with the accompanying drawings and examples.
First, some terms to which the present invention relates are introduced:
CAD: namely Computer Aided Design (Computer Aided Design), which helps designers to Design work by using a Computer and a graphic device thereof.
And GIS: the geographic information system is an integration which organizes computer hardware, software, geographic data and system management personnel to efficiently acquire, store, update, operate, analyze and display geographic information in any form.
Primitives generally refer to basic graphics elements. The electric power equipment graphics primitive is a pattern expressed by different equipment images of a point line surface.
Please refer to fig. 1, which shows a main flow diagram of an embodiment of a power distribution network planning scheme visualization drawing method based on standard primitives according to the present invention; referring to fig. 2 to 10 together, in this embodiment, the method specifically includes the following steps:
step S10, summarizing the primitives used in the existing planning process, and establishing a general standard primitive library suitable for planning business by combining the primitives merged into the pipe network equipment primitives and the building facility primitives; specifically, primitives such as a transformer substation, a cable/overhead, a ring main unit, a switching station, a contact cabinet, a platform transformer substation, a box transformer substation, an indoor transformer substation, an on-column circuit breaker, an on-column disconnecting link, automation equipment and the like can be established; by establishing a universal and standard primitive library, the readability and the normalization of the planning result can be improved.
In particular, as shown in fig. 2, examples of graphical elements of the electrical portion are shown, it being understood that these are only examples and not exhaustive, and that there are other graphical elements that are not shown. Wherein different devices can be represented by different colors, and the colors of the devices and the colors of the lines can be kept consistent.
As shown in fig. 3, which shows an example of primitives of a civil engineering part, in a specific body, newly-built trench engineering drawings are all depicted by "dotted lines", and attention is paid to the association with the inventory trench data of the digital management and control system of the underground pipe network.
As shown in fig. 4, an example of a graphical element of a portion of a construction facility is shown. In a specific example, similar to ***earth software, a legend is pasted, and related attributes are input; boundaries are mapped (culled) in the GIS and allow uploading of live pictures.
Step S11, synchronizing GIS original data through interface at regular time;
step S12, cleaning the obtained GIS data, and only retaining the device topology data required for planning, where the device topology data at least includes: information of transformer substation, medium voltage line and station building equipment;
step S13, performing primitive conversion on the out-station equipment, the in-station equipment and the GIS point-plane equipment in the topological data, and performing longitude and latitude processing;
the station external equipment, the station internal equipment and the GIS point-surface equipment are explained as follows:
in a specific example, for an off-site device, the step S13 further includes:
and converting the data of the off-site equipment into editable graph structure data, storing the editable graph structure data into the database, and replacing the corresponding graphic elements according to the planning graph source library.
In a specific example, for the in-station device, the step S13 further includes:
the GIS station house equipment is point equipment, and the GIS station house equipment is converted into surface equipment from the point equipment; the GIS has no longitude and latitude of the equipment in the station, firstly, the topological relation of the equipment in the station is combed, the topological structure of the equipment in the station is determined, the longitude and latitude of the equipment in the station are calculated by combining a space topological algorithm, and the corresponding graphic elements of the equipment in the station are dynamically generated. Fig. 5 and fig. 6a to 6c are also combined.
More specifically, the spatial topology algorithm specifically includes the following functions:
new _ Sweep (), a new data structure of the scanning line state is generated, and a variable of the Sweep _ Status type is returned;
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 the line segment is inserted;
del _ right (S, S), when an event point of the right half segment type is encountered during the scanning process, deleting the segment element corresponding to the right half segment in the scanning line, S, S and the definition of the return value is the same as add _ left (S, S);
pred _ of (S, elem), locating the predecessor 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 elem according to the sorting rule of the scan line, setting the data item current of S to point to the predecessor of elem as the operation result, and returning the scan line state after the current is set, wherein the current is 0 to indicate that the predecessor does not exist;
current _ exists (S), when the data item current of S is 0, return FALSE, otherwise return TRUE;
set _ attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr being the attribute set;
get _ attr (S) takes the attribute of the space element pointed by current in S, and returns an attribute set.
In a specific example, performing primitive transformation and longitude and latitude processing on the GIS point-plane device may be as shown in fig. 7a and 7b, where the step S13 further includes:
in the GIS, a transformer substation is a surface device, station houses are point devices, a connection relation is established between a line on a graph and one point on four sides of the transformer substation, and a relation is established between the line on the graph and a central point of the station house devices. Thus, the scale and the utilization condition of the switching equipment in the station can be clearly shown.
Step S14, rendering on canvas based on the converted current situation power grid topological graph data, drawing planning-state electrical equipment on the current situation power grid, realizing fusion of the current situation and the planning, and establishing a connection relation between the current situation equipment and the planning equipment;
specifically, the step S14 further includes:
rendering on a canvas by using an openlayer3 technology based on the converted current power grid topological graph data, drawing planning-state electrical equipment on a current power grid, realizing the fusion of the current state and the planning, establishing a connection relation between the current state equipment and the planning equipment, and supporting the electrical calculation check of the planning state; please refer to fig. 8. In specific operation, drag-type operation can be performed;
and S15, loading map tiles, and overlapping the current power grid of the electrical equipment with the planned state drawn with the current map layer and the satellite map layer respectively.
Specifically, the step S15 further includes:
and loading map tiles by using a Geoserver technology, and superposing the current situation power grid of the electrical equipment with the planned state drawn respectively with a current situation map layer and a satellite map layer to realize the differentiation comparison between the current situation and a target grid structure so as to assist in planning analysis. Please refer to fig. 9 and fig. 10, respectively.
The implementation of the invention has the following beneficial effects:
the embodiment of the invention provides a power distribution network planning scheme visual drawing method based on standard primitives, which defines the primitives of various devices related to a power distribution network by creating a unified power distribution network planning device primitive specification, supports target net rack drawing and power distribution network planning scheme drawing, and realizes real-time synchronization with GIS data; the route trend and the equipment distribution can be displayed on the basis of a map, multiple intervals are automatically generated for station room equipment according to technical parameters, the residual interval capacity of the station room is clear at a glance, and the establishment of the topological relation between a switch and a route is realized;
the embodiment of the invention can realize the graphic primitive presentation and visual display of the interval condition in the power distribution station house class, realize the establishment of the topological relation between the interval switch and the line in the station house, and has the advantages of convenience, rapidness and good drawing effect.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (7)
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 general standard primitive library suitable for planning business by combining the primitives merged into the pipe network equipment primitives and the building facility primitives;
step S11, synchronizing GIS original data through interface at regular time;
step S12, cleaning the obtained GIS data, and only retaining the device topology data required for planning, where the device topology data at least includes: information of transformer substation, medium voltage line and station building equipment;
step S13, performing primitive conversion on the out-station equipment, the in-station equipment and the GIS point-plane equipment in the topological data, and performing longitude and latitude processing;
step S14, rendering on canvas based on the converted current situation power grid topological graph data, drawing planning-state electrical equipment on the current situation power grid, realizing fusion of the current situation and the planning, and establishing a connection relation between the current situation equipment and the planning equipment;
and step S15, superposing the current power grid of the electrical equipment with the planned state drawn thereon with a current map layer and a satellite map layer respectively.
2. The method of claim 1, wherein the step S13 further comprises:
and converting the data of the off-site equipment into editable graph structure data, storing the editable graph structure data into the database, and replacing the corresponding graphic elements according to the planning graph source library.
3. The method of claim 2, wherein the step S13 further comprises:
converting GIS station house equipment from point equipment to surface equipment; and combing the topological relation of the equipment in the station, determining the topological structure of the equipment in the station house, calculating the longitude and latitude of the equipment in the station by combining a space topological algorithm, and dynamically generating corresponding primitives of the equipment in the station.
4. The method according to claim 3, characterized in that said spatial topology algorithm comprises in particular the following function:
new _ Sweep (), a new data structure of the scanning line state is generated, and a variable of the Sweep _ Status type is returned;
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 the line segment is inserted;
del _ right (S, S), when an event point of the right half segment type is encountered during the scanning process, deleting the segment element corresponding to the right half segment in the scanning line, S, S and the definition of the return value is the same as add _ left (S, S);
pred _ of (S, elem), locating the predecessor 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 elem according to the sorting rule of the scan line, setting the data item current of S to point to the predecessor of elem as the operation result, and returning the scan line state after the current is set, wherein the current is 0 to indicate that the predecessor does not exist;
current _ exists (S), when the data item current of S is 0, return FALSE, otherwise return TRUE;
set _ attr (S, attr) sets the attribute of the spatial element pointed by current in S, attr being the attribute set;
get _ attr (S) takes the attribute of the space element pointed by current in S, and returns an attribute set.
5. The method of claim 1, wherein the step S13 further comprises:
the method comprises the steps of establishing a connection relation between a line and a certain point on four sides of a transformer substation on a graph, establishing a relation between the line and a central point of station house type equipment, converting the transformer substation into point equipment, converting the station house type equipment into surface equipment, offsetting the position of the head end or the tail end of a feeder line, enabling an outgoing line of the transformer substation to be connected with the central point of the transformer substation, and enabling the line connected with the station house to be connected with specific switch equipment.
6. The method according to any one of claims 1 to 5, wherein the step S14 further comprises:
rendering on a canvas of the cavans by applying an openlayer3 technology based on the converted current power grid topological graph data, drawing electrical equipment in a planning state on the current power grid, realizing the fusion of the current state and the planning, establishing a connection relation between the current equipment and the planning equipment, and supporting electrical calculation checking of the planning state.
7. The method of claim 6, wherein the step S15 further comprises:
and loading map tiles by using a Geoserver technology, and superposing the current situation power grid of the electrical equipment with the planned state drawn respectively with a current situation map layer and a satellite map layer to realize the differentiation comparison between the current situation and a target grid structure so as to assist in planning analysis.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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