A Fast Drawing and Modeling Method and System for Distribution Networks

Abstract

The present invention provides a method and system for rapid drawing and modeling of a distribution network. By creating a feeder section between two electrical devices, creating virtual electrical devices between the feeder sections, converting the virtual electrical devices into specified device types, instantiating relevant devices and feeder section primitives on the graph according to the converted device types, obtaining relevant model information, binding the model information to the corresponding primitives, and updating the topological connection relationship between the electrical devices and the feeder sections, the present invention realizes the rapid drawing and modeling of the main line and branch lines of the single-line diagram of the distribution network, reduces the number of times of manually creating primitives, streamlines the process of establishing the model, automatically adjusts the layout, and improves the efficiency of drawing and modeling.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution network drawing, and in particular to a method and system for rapid drawing and modeling of a distribution network. Background Art

[0002] In a power system, a single-line diagram of a distribution network takes a single feeder as a unit, and all the equipment related to the line from the substation outgoing line to the distribution transformer or the line connection switch. The main electrical equipment presented includes circuit breakers, load switches, drop fuses, fault indicators, and poles, etc.

[0003] When drawing a single-line diagram of a distribution network in the traditional way, the drawing of one feeder requires creating electrical equipment primitives, filling in model parameters for modeling, manually establishing topological connection relationships between electrical equipment, and adjusting the layout multiple times, which is time-consuming and laborious. Summary of the Invention

[0004] The purpose of the present invention is to provide a method and system for rapid drawing and modeling of a distribution network, aiming to solve the problem that the existing technology requires manual completion when drawing a single-line diagram of a distribution network, which is time-consuming and laborious, and to achieve the improvement of the efficiency of drawing and modeling, reducing the number of times of manually creating primitives, and streamlining the process of establishing a model.

[0005] To achieve the above technical purpose, the present invention provides a method for rapid drawing and modeling of a distribution network, and the method includes the following operations:

[0006] After selecting two electrical equipment without connection relationships, input the number of feeder segments to be created in batches, automatically create the corresponding number of feeder segments, and at the same time create virtual equipment between the feeder segments;

[0007] Switch the virtual equipment to electrical equipment of a specified type through a simulation dialog box, and automatically create feeder segments and electrical equipment switched to specific types;

[0008] Instantiate electrical equipment and feeder segment primitives on the graph, calculate the Manhattan distance between the initial two electrical equipment, and evenly distribute the electrical equipment created during the process between the specified electrical equipment according to the Manhattan distance between each pair;

[0009] Obtain model information and bind primitives, and update the graphical and model topological connection relationships between the initial two electrical equipment.

[0010] Preferably, the voltage levels of the two electrical equipment need to be the same.

[0011] Preferably, the specified type of electrical equipment includes load switches, circuit breakers, drop fuses, fault indicators, and poles.

[0012] Preferably, the model information includes common model information such as the feeder to which it belongs and the voltage level.

[0013] Preferably, when the electrical device of the specified type is a two-terminal device, the feeder segments at both ends of the device are respectively connected to different terminals of the electrical device; no virtual electrical device will be created, and the two feeder segments connecting the virtual device will be merged into one during the actual creation process.

[0014] The present invention also provides a fast drawing and modeling system for a distribution network, and the system includes:

[0015] A feeder segment creation module, which is used to select two electrical devices without connection relationship, input the number of feeder segments to be created in batches, automatically create the corresponding number of feeder segments, and create virtual devices between the feeder segments;

[0016] A device type switching module, which is used to switch the virtual device to an electrical device of a specified type through a simulation dialog box, and automatically create feeder segments and switch to an electrical device of a specific type;

[0017] A graphic primitive instantiation module, which is used to instantiate electrical device and feeder segment primitives on the graph, calculate the Manhattan distance between the initial two electrical devices, and evenly distribute the electrical devices created during the process between the specified electrical devices according to the Manhattan distance between each pair;

[0018] A model creation module, which is used to create a model of the newly added electrical devices and feeder segments between the initial two electrical devices, bind the primitives, and update the graphic and model topological connection relationships.

[0019] Preferably, the voltage levels of the two electrical devices need to be the same.

[0020] Preferably, the electrical devices of the specified type include load switches, circuit breakers, drop fuses, fault indicators, and poles.

[0021] Preferably, the model information includes common model information such as the feeder to which it belongs and the voltage level.

[0022] Preferably, when the electrical device of the specified type is a two-terminal device, the feeder segments at both ends of the device are respectively connected to different terminals of the electrical device; no virtual electrical device will be created, and the two feeder segments connecting the virtual device will be merged into one during the actual creation process.

[0023] The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. One of the above technical solutions has the following advantages or beneficial effects:

[0024] Compared with the prior art, in the embodiment of the present invention, by creating a feeder section between two electrical devices, creating a virtual electrical device between the feeder sections, converting the virtual electrical device into a specified device type, instantiating relevant devices and feeder section primitives on the graph according to the converted device type, obtaining relevant model information, binding the model information to the corresponding primitives, and updating the topological connection relationship between the electrical devices and the feeder sections, the rapid drawing and modeling of the main line and branch lines of the single-line diagram of the distribution network are realized, the number of times of manually creating primitives is reduced, the process of establishing the model is streamlined, the layout is automatically adjusted, and the efficiency of drawing and modeling is improved. Brief Description of the Drawings

[0025] Figure 1 It is a logic flowchart of a method for rapid drawing and modeling of a distribution network provided in an embodiment of the present invention;

[0026] Figure 2 It is a block diagram of a system for rapid drawing and modeling of a distribution network provided in an embodiment of the present invention. Detailed Embodiments

[0027] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific embodiments and in conjunction with its accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of well-known components and processing technologies and processes to avoid unnecessarily limiting the present invention.

[0028] The following will describe in detail a method and a system for rapid drawing and modeling of a distribution network provided in an embodiment of the present invention with reference to the accompanying drawings.

[0029] As Figure 1 shown, an embodiment of the present invention discloses a method for rapid drawing and modeling of a distribution network, and the method includes the following operations:

[0030] After selecting two electrical devices without a connection relationship, input the number of feeder sections to be created in batches, automatically create the corresponding number of feeder sections, and at the same time create a virtual device between the feeder sections;

[0031] Switch the virtual device to an electrical device of a specified type through a simulation dialog box, and automatically create a feeder section and switch to an electrical device of a specific type;

[0032] Instantiate electrical equipment and feeder section graphic elements on the graph, calculate the Manhattan distance between the initial two electrical equipment, and evenly distribute the electrical equipment created during the process between the specified electrical equipment according to the Manhattan distance between each pair;

[0033] Update the graphic and model topology connection relationship between the initial two electrical equipment.

[0034] The embodiments of the present invention aim to draw the main lines and branch lines of the single-line diagram of the distribution network through rapid drawing and modeling of the distribution network, mainly overhead lines, to achieve rapid drawing and modeling of the single-line diagram of the distribution network.

[0035] Draw and model two electrical equipment at appropriate positions in the feeder diagram. If they already exist on the feeder diagram, they can be directly selected. By default, there is no feeder section connection between the two electrical equipment. All operations are only for the independent creation of the main line and branch lines, and the topological connection relationship between the branch line and the main line needs to be created manually.

[0036] Judge whether the voltage levels of the above two electrical equipment are the same. If they are the same, obtain the two terminals closest to the two devices for subsequent connection with other feeder sections. Otherwise, end the execution.

[0037] Batch-create feeder sections, select the feeder section type, select overhead lines or cable lines, input the number of feeder sections to be created between these two electrical equipment and the initial tower name, create the corresponding number of feeder sections, and at the same time create virtual electrical equipment between the feeder sections. The electrical equipment created is defaulted to virtual equipment, which does not represent a specific equipment type. The naming rule is to increment the numbers in the initial tower name. The feeder section type is defaulted to be the same as the selected feeder section type, and the default name is the two-end equipment names with a "-" in the middle, for example, spare I line #1 - spare I line #2.

[0038] After selecting the electrical equipment, convert it to the specified equipment type, including load switches, circuit breakers, drop fuses, fault indicators, towers, etc., and the preview effect can be seen on the graph. If the selection is not switched, it remains a virtual electrical equipment. After selecting the specified electrical equipment or feeder section, modify the default name as the model name for subsequent modeling.

[0039] Instantiate electrical equipment and feeder section graphic elements on the graph according to the converted electrical equipment type. For two-terminal equipment, such as a circuit breaker, the feeder sections at both ends of the equipment are respectively connected to different terminals of the electrical equipment; virtual electrical equipment will not be created, and the two feeder sections connecting the virtual equipment will be merged into one during the actual creation process. Calculate the Manhattan distance between the terminals of the initial two electrical equipment, evenly distribute all the electrical equipment between the initial two electrical equipment, and connect them through feeder sections.

[0040] Obtain the common model information such as the feeder and voltage level to which the model information of the initial two electrical devices belongs. Use the obtained common model information, the names of the electrical devices, and the feeder segments to model the electrical devices and the feeder segments, and bind the model information to the corresponding graphic elements.

[0041] Finally, update the topological connection relationship between the electrical devices and the feeder segments.

[0042] In the embodiment of the present invention, by creating a feeder segment between two electrical devices, creating a virtual electrical device between the feeder segments, converting the virtual electrical device into a specified device type, instantiating relevant devices and feeder segment graphic elements on the graph according to the converted device type, obtaining relevant model information, binding the model information to the corresponding graphic elements, and updating the topological connection relationship between the electrical devices and the feeder segments, the rapid drawing and modeling of the main line and branch lines of the single-line diagram of the distribution network are realized, the number of times of manually creating graphic elements is reduced, the process of establishing the model is streamlined, the layout is automatically adjusted, and the efficiency of drawing and modeling is improved.

[0043] As Figure 2 shown, the embodiment of the present invention also discloses a rapid drawing and modeling system for a distribution network. The system includes:

[0044] A feeder segment creation module, which is used to automatically create the corresponding number of feeder segments after selecting two electrical devices without a connection relationship and inputting the number of feeder segments to be created in batches, and create a virtual device between the feeder segments at the same time;

[0045] A device type switching module, which is used to switch the virtual device to an electrical device of a specified type through a simulation dialog box, and automatically create a feeder segment and switch to an electrical device of a specific type;

[0046] A graphic element instantiation module, which is used to instantiate the graphic elements of the electrical devices and the feeder segments on the graph, calculate the Manhattan distance between the initial two electrical devices, and evenly distribute the electrical devices created during the process between the specified electrical devices according to the Manhattan distance between each pair;

[0047] A model creation module, which is used to create a model of the newly added electrical devices and feeder segments between the initial two electrical devices, bind the graphic elements, and update the topological connection relationship between the graph and the model.

[0048] Draw and model two electrical devices at appropriate positions in the feeder diagram. If they already exist on the feeder diagram, they can be directly selected. By default, there is no feeder segment connection between the two electrical devices. All operations are only for the independent creation of the main line and branch lines. The topological connection relationship between the branch line and the main line needs to be created manually.

[0049] Judge whether the voltage levels of the above two electrical devices are the same. If they are the same, obtain the two terminals with the shortest distance between the two devices for subsequent connection to other feeder segments; otherwise, end the execution.

[0050] Batch-create feeder segments, select the feeder segment type, choose overhead lines or cable lines, input the number of feeder segments to be created between these two electrical devices and the initial tower name, create the corresponding number of feeder segments, and simultaneously create virtual electrical devices between the feeder segments. The created electrical devices are defaulted to virtual devices, which do not represent specific device types. The naming rule is to increment the numbers in the initial tower name. The feeder segment type is defaulted to be the same as the selected feeder segment type, and the default name is the names of the two end devices with a "-" in the middle. For example, spare I line #1 - spare I line #2.

[0051] After selecting an electrical device, convert it to a specified device type, including load switches, circuit breakers, drop fuses, fault indicators, towers, etc., and the preview effect can be seen on the graph. If the selection is not switched, it remains a virtual electrical device. After selecting a specified electrical device or feeder segment, modify the default name as the model name for subsequent modeling.

[0052] Instantiate the electrical device and feeder segment primitives on the graph according to the converted electrical device type. For two-terminal devices, such as circuit breakers, the feeder segments at both ends of the device are respectively connected to different terminals of the electrical device; virtual electrical devices will not be created, and the two feeder segments connecting the virtual device will be merged into one during the actual creation process. Calculate the Manhattan distance between the terminals of the initial two electrical devices, evenly distribute all electrical devices between the initial two electrical devices, and connect them through feeder segments.

[0053] Obtain the common model information such as the feeder and voltage level to which the model information of the initial two electrical devices belongs, and use the obtained common model information, the names of the electrical devices and feeder segments to model the electrical devices and feeder segments, and bind the model information to the corresponding primitives.

[0054] Finally, update the topological connection relationship between the electrical devices and feeder segments.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rapid drawing and modeling method for a distribution network, characterized in that, The method includes the following operations: After selecting two electrical devices that have no connection relationship, input the number of feeder segments to be created in batch, automatically create the corresponding number of feeder segments, and at the same time create virtual devices between the feeder segments; the voltage levels of the two electrical devices need to be the same; Switch the virtual device to an electrical device of a specified type through a simulation dialog box, and automatically create feeder segments and switch to electrical devices of a specific type; Instantiate electrical device and feeder segment primitives on the graph, calculate the Manhattan distance between the initial two electrical devices, and evenly distribute the electrical devices created during the process between the specified electrical devices according to the Manhattan distance between each pair; Obtain model information and bind primitives, and update the graphical and model topological connection relationship between the initial two electrical devices.

2. The fast drawing and modeling method for a distribution network according to claim 1, wherein The specified type of electrical devices includes load switches, circuit breakers, drop fuses, fault indicators, and poles.

3. A rapid drawing and modeling method for a distribution network according to claim 1, characterized in that, The model information includes the common model information of the affiliated feeder and voltage level.

4. A rapid drawing and modeling method for a distribution network according to claim 1, characterized in that When the specified type of electrical device is a two-terminal device, the feeder segments at both ends of the device are respectively connected to different terminals of the electrical device; when not switched, virtual electrical devices will not be created, and the two feeder segments connecting the virtual electrical device will be merged into one during the actual creation process.

5. A fast drawing and modeling system for a distribution network, characterized in that, The system includes: A feeder segment creation module, which is used to, after selecting two electrical devices that have no connection relationship, input the number of feeder segments to be created in batch, automatically create the corresponding number of feeder segments, and at the same time create virtual devices between the feeder segments; the voltage levels of the two electrical devices need to be the same; A device type switching module, which is used to switch the virtual device to an electrical device of a specified type through a simulation dialog box, and automatically create feeder segments and switch to electrical devices of a specific type; A primitive instantiation module, which is used to instantiate electrical device and feeder segment primitives on the graph, calculate the Manhattan distance between the initial two electrical devices, and evenly distribute the electrical devices created during the process between the specified electrical devices according to the Manhattan distance between each pair; A model creation module, which is used to create a model of the newly added electrical devices and feeder segments between the initial two electrical devices and bind primitives, and update the graphical and model topological connection relationship.

6. The fast drawing and modeling system for a distribution network according to claim 5, wherein The specified type of electrical devices includes load switches, circuit breakers, drop fuses, fault indicators, and poles.

7. A rapid drawing and modeling system for a distribution network according to claim 5, characterized in that, The model information includes the common model information of the affiliated feeder and voltage level.

8. The fast drawing and modeling system for a distribution network according to claim 5, characterized in that When the specified type of electrical device is a two-terminal device, the feeder segments at both ends of the device are respectively connected to different terminals of the electrical device; when not switched, virtual electrical devices will not be created, and the two feeder segments connecting the virtual electrical device will be merged into one during the actual creation process.

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