Layout control system applied to power grid high-risk users power supply diagram

Abstract

The present invention discloses a layout control system applied to a power supply diagram for high-risk users in an electric power grid. The key points of its technical solution are that it includes a layout subsystem and a management and control subsystem. The layout subsystem includes a networking module and a mapping module. The networking module forms data information after acquiring power grid data, and forms a corresponding point data set and equipment set according to the data information, thereby forming a unit grid. The mapping module adjusts the data of the bus chain group to form a power supply diagram. The management and control subsystem generates corresponding bus priorities according to the power supply diagram, and is configured with a cutting strategy, so that when a circuit fault occurs and cutting is required, the circuit can be cut quickly and accurately, and the stable power supply of the substation is guaranteed, thereby realizing the intelligent formation of the power supply diagram and the effective management and control effect of the power station based on the power supply diagram.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power automation control, and more particularly to a layout control system applied to a power supply diagram for high-risk users in an electric power grid. Background Art

[0002] Grid graphics are the basic data in the distribution automation system and are the carrier of grid operation information and dispatching operations. There are many types of grid graphics, including distribution network single-line diagrams, system diagrams, ring network diagrams, station room diagrams, power user main power supply path diagrams, etc.

[0003] The existing patent publication number CN201510772549.7 discloses a power grid thematic map layout method based on a dynamic programming algorithm, which is characterized by including the following steps: Step 1, constructing a ring network topology relationship model based on a single-line diagram based on the spatial data of the power system; Step 2, constructing a connected graph consisting of N vertices and an N*N adjacency matrix based on the constructed topology relationship model and the number N of sub-map files; Step 3, establishing a function model, and calculating the optimal value according to the dynamic programming algorithm until all sub-map files are traversed; Step 4, laying out the sub-map files; Step 5, rendering them into a map.

[0004] Publication No. CN201910735786.4 discloses a method for automatically drawing a single-line diagram for a distribution network based on a weighted tree, comprising the following steps: S1, preprocessing a tree topology model; S2, calculating tree node weights; S3, drawing a diagram. In step S2, calculating tree node weights comprises the following steps: S21, inputting a tree topology model; S22, traversing the current node; S23, determining whether the current node has child nodes. If so, proceed to step S24; if not, assigning weights to the current node and proceeding to step S25; S24, assigning child nodes to the current node; S25, calculating the weight of the current node; S26, determining whether the current node is equal to the root node. If so, proceed to step S27; if not, proceed to step S22; S27, ending.

[0005] The existing technology mainly uses the drawing tools or CAD drawing tools of the distribution automation system to draw pictures, but there are still many shortcomings, including heavy workload, low efficiency, easy errors, and failure to synchronize to the distribution automation master station in time. In addition, the workload of maintaining and updating the graphics in the later stage is large. At the same time, the graphics are only used to provide a reference for construction and installation, and cannot be used as an auxiliary control for the management and control of the power station. In this regard, a method can generate a protection diagram for high-risk users of the power grid and provide effective control of the power station management and control. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a layout control system applied to a power supply diagram for high-risk users in an electric power grid to solve the technical problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A layout control system applied to a power supply diagram for high-risk users in an electric power grid, comprising: a layout subsystem and a control subsystem;

[0009] The layout subsystem includes a networking module and a mapping module. The networking module is configured with a path networking strategy. The path networking strategy includes acquiring power grid data and generating data information based on the power grid data. The data information includes forming busbar interconnection components and busbar chain groups based on busbar division within the substation, and determining the order of the busbar chain groups based on the busbar interconnection components. Classification and analysis are performed based on the data information to form corresponding point data sets and device sets. Unit grids are set based on the point data sets and device sets. The corresponding device sets are configured according to the unit grids to form a path layout for the devices. The point data sets, device sets, and unit grids are combined to form an internal layout of the substation.

[0010] The mapping module is configured with an image processing strategy, which includes obtaining data information in the substation, adjusting the interval order and spacing direction of the equipment in the busbar according to the order of the busbar chain groups, and merging and optimizing the substation after the order of the busbar chain groups is adjusted to form mapping data, and generating a power supply guarantee map corresponding to high-risk users based on the mapping data;

[0011] The management and control subsystem includes a grading module and a control module. The grading module is configured with a priority strategy. The priority strategy includes, when merging and optimizing the split substations, retrieving the equipment set and the position of the corresponding equipment on the bus chain group, and generating the bus priority in the corresponding unit grid according to the position of the equipment in the corresponding bus chain group. The control module is configured with a cutting strategy. The cutting strategy includes retrieving the power supply diagram and monitoring the equipment in the power supply diagram in real time. When a short circuit occurs in the equipment, a cutting signal is generated and the bus priority is retrieved. The bus chain group is controlled according to the bus priority to cut and control the equipment.

[0012] As a further improvement of the present invention, the specific steps corresponding to obtaining power grid data and generating data information in the path networking strategy are:

[0013] S10: Data preparation;

[0014] Connect the disconnectors installed on the busbars of two parallel rows of switches in the substation to form a bus coupler, form a busbar interconnection component with a group of busbars that are related to each other, and form a busbar chain group with the busbar interconnection component from the starting busbar to the ending busbar;

[0015] The equipment information in the bus chain group in the substation is read and data information is formed. The data information includes point equipment sub-information, edge equipment sub-information and in-station equipment sub-information. The types of the read point equipment sub-information are classified and a point data set is formed. The point equipment sub-information represents the type information of a single power supply device. The point equipment sub-information includes high-risk user equipment, split substation equipment and main transformer equipment. The point data set is used to count the equipment type information represented by the same type of point equipment sub-information. The edge equipment sub-information represents the equipment on the same bus chain group and forms an equipment set. The in-station equipment sub-information represents the type of all power supply equipment in the substation and the information set of power supply data, and a unit grid is formed according to the type of equipment in the point data set and the equipment set and the position of the bus chain group.

[0016] As a further improvement of the present invention, the specific manner of forming a path layout according to the unit grid in the path networking strategy is:

[0017] S20: device path layout;

[0018] The high-risk user equipment is used as the power supply guarantee equipment. The power supply line for the high-risk user equipment is transmitted from the high-voltage side bus of the substation through the main transformer equipment to the low-voltage side bus of the substation, and then connected to the high-risk user equipment by the low-voltage side bus;

[0019] Starting from the high-risk user equipment, index the power supply equipment units on the bus interconnection component along the bus chain group and record them. The high-risk user equipment is counted as 1 and counted as 1 layer. The number of layers of the equipment units indexed along the bus interconnection component is cumulatively increased by 1, and the layer number of the indexed equipment unit is recorded;

[0020] The equipment units along the path of the unit grid are determined to correspond to the positions of the equipment units in the unit grid of the power station, and are recorded by the row and column numbers of the equipment units. The lower left corner of the unit grid is used as the starting point of the unit grid. The equipment units are matched to the positions of the equipment units in the unit grid according to the positions indexed along the bus chain group and the bus connection components.

[0021] Adjust the grid height and grid width of the rows and columns where the equipment units are located so that the equipment units do not overlap in the unit grid;

[0022] After forming a cell grid, high-risk user equipment is placed in the center of the cell grid.

[0023] As a further improvement of the present invention, the step S10 further includes a bus information processing step S101:

[0024] Obtain the location and quantity of all buses in the substation. Based on the power supply data on the buses in the substation and the interconnection relationship between the buses, start indexing from the first unsearched bus, index one or more bus interconnection components, and find the head node of the bus interconnection component. Based on the location of the head node, obtain the bus chain group formed by the corresponding bus interconnection components;

[0025] According to whether the connection relationship between the busbars and the main transformer equipment in the busbar chain group is in a horizontal sequence in the unit grid, it is determined whether the order of the busbar chain group needs to be reversed, and if it needs to be reversed, the head node of the busbar chain group and the order of the busbar chain group are re-determined;

[0026] When determining the order of the bus chain groups, start processing from the bus interconnection component with the largest amount of power supply data, and exchange the positions of the bus interconnection components according to the front and back connection relationship of the bus interconnection components so that the positions of the bus interconnection components forming the bus chain group are in the horizontal sequence in the unit grid.

[0027] As a further improvement of the present invention, the step S10 further includes a step S102 of adjusting the order and spacing direction of the busbar chain group:

[0028] Classify and sort multiple bay switches connected to the busbars in the busbar interconnection components in the busbar chain group, obtain the positions of the external equipment units connected to the bay switches, distinguish the types of buses connected to the bay switches, and divide the buses into equal-sign layout buses and straight-line layout buses based on the busbar positions connected to the busbars. The equal-sign layout busbar indicates that two buses are parallel to each other and have an upper or lower relative position setting, and the straight-line layout busbar indicates that two buses are arranged horizontally.

[0029] Determine the direction of the bay switches on the straight-line busbars. Direct the bay switches on the busbars downward, and the other bay switches upward or downward according to the positions of the connected equipment units.

[0030] Determine the direction of the interval switch on the equal-sign busbar, and adjust the interval switch connected to the main transformer equipment to the busbar position. If the upper busbar is connected to the lower main transformer, adjust the interval switch on the busbar to the lower busbar. If the lower busbar is connected to the upper main transformer equipment, adjust the interval switch on the busbar to the upper busbar. After adjusting the position of the interval switch, adjust the final direction of the interval switch according to the position of the equal-sign layout busbar where the busbar is located, with the interval switch connected to the upper busbar facing upward and the interval switch on the lower busbar facing downward.

[0031] As a further improvement of the present invention, the step S102 further includes the step of arranging the positions of the straight busbars:

[0032] Count the number of bay switches pointing upward and downward on a busbar. When the number of bay switches pointing upward is inconsistent with the number of bay switches pointing downward, insert bay switches to the number of bay switches on the side with fewer bay switches until the number of bay switches on both sides is consistent. Calculate the length of the busbar based on the bay switches on the side with more bay switches. Calculate the total length of the busbars in the horizontal direction of the substation based on the length of the busbars to determine the length of the substation. Calculate the width of the substation by calculating the busbar assembly in the vertical direction of the substation. Calculate the left and right widths of the substation with the center point of the substation as the center, and record the left and right widths as the values in the X-axis direction, and the vertical length as the value in the Y-axis direction.

[0033] The starting position of the first busbar is calculated relative to the substation, and the positions of all busbars in the substation relative to the substation center are calculated according to the method of calculating the position of the first busbar.

[0034] As a further improvement of the present invention, the step S102 further includes the step of arranging the positions of the equal-sign busbars:

[0035] The length direction of the substation is recorded as the Y-axis direction, and the width direction is recorded as the X-axis direction. The spacing between the equal-sign busbars is obtained and the interval value is generated. The total length and total width of the substation are calculated based on the total length and interval values of the busbars in the X-axis and Y-axis directions respectively. The relative position of the busbar relative to the center point of the substation is obtained from the starting position to the ending position of the busbar along the length and width directions.

[0036] As a further improvement of the present invention, the step S30 of calculating the position of the interval switch is further included:

[0037] After obtaining the relative position of the busbar in the substation, first calculate the position of the bay switch upward on the busbar. Starting from the starting point of the bay switch on the corresponding busbar, the starting position of the bay switch is obtained by adding half of the width between the bay switches to the starting position of the busbar. The position of the subsequent bay switches is the starting position of the bay switch plus the width between the bay switches.

[0038] As a further improvement of the present invention, the image processing strategy is specifically as follows:

[0039] After the unit grid is formed by the busbar chain group, the unit grid is proportionally adjusted according to the actual length and width of the substation. A scaling threshold is configured during the scaling adjustment. The unit grid is scaled according to the scaling threshold so that the equipment units in the scaled unit grid do not overlap and the unit grid matches the actual length and width of the substation;

[0040] Taking the lower left position of the unit grid drawing as the origin, the center position of the equipment unit is calculated based on the position of any small grid in the unit grid. At the same time, the position of the busbar and the interval switch in the substation is restored. According to the connection relationship between the main transformer equipment and the busbar, the main transformer equipment and the interval switch on the corresponding busbar are adjusted to align along the Y-axis direction, and the position coordinates of the high-risk user equipment are adjusted to the lower center position of all equipment units and recorded in the drawing data to form the corresponding power supply diagram.

[0041] As a further improvement of the present invention, the control module is further configured with a device identifier. When forming a power supply diagram, the device identifier of the corresponding device unit is assigned to the device unit and displayed. The specific segmentation strategy is:

[0042] When generating the power supply diagram, an attached label signal is also generated. The control module assigns the equipment identifier to the equipment unit and generates a monitoring signal. The control module monitors the equipment unit and the bus chain group connected to the equipment unit in real time. When a short circuit or circuit failure occurs in the equipment unit and a cutting signal is generated, the operating status of the equipment unit is retrieved to determine whether the corresponding equipment unit can be controlled to be cut off. If the cutting is successful, it is cut off separately. If it cannot be cut off, the bus priority of the bus chain group where the faulty equipment unit is located is retrieved to determine whether the corresponding bus chain group can be cut off. If it cannot be cut off, the upper-level bus chain group is retrieved for cutting, and the bus chain group at the same level as the faulty equipment unit is obtained for power distribution to correct the power supply stability of the substation.

[0043] The beneficial effects of the present invention are as follows: by acquiring power grid data and generating data information corresponding to the power grid data, the busbar settings in the substation are obtained, and the busbars are divided into types to form busbar interconnection components and busbar chain groups. The length and width dimensions of the substation are obtained by sequentially arranging the busbar chain groups, and the formed unit grid is adjusted according to the size of the substation. The formation of the unit grid is obtained through the point data set and the equipment set, so as to obtain a reasonable layout arrangement of the equipment and busbars in the substation, thereby obtaining the final power supply diagram. According to the control subsystem combined with the power supply diagram, the accurate position of the equipment unit in the substation and the busbar priority corresponding to the equipment unit are obtained, so that when the equipment unit fails and needs to be cut, it can be accurately and efficiently controlled according to the power supply diagram, and after cutting, the power distribution is performed according to the busbar priority, ensuring the stable cutting of the substation equipment unit and the stable power supply, and achieving the intelligent formation of the power supply diagram and the effective control of the power station based on the power supply diagram. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 To embody the overall process control diagram of the present invention;

[0045] Figure 2A process control diagram to reflect the unit grid setting;

[0046] Figure 3 To reflect the layout flow chart of the interval switch;

[0047] Figure 4 This is a process control diagram that reflects the busbar layout. DETAILED DESCRIPTION

[0048] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0049] refer to Figures 1 to 4 As shown, a specific embodiment of the layout control system of the present invention applied to the power supply diagram for high-risk users in the power grid includes: a layout subsystem and a management and control subsystem, the layout subsystem includes a networking module and a mapping module, the networking module is configured with a path networking strategy, the path networking strategy includes obtaining power grid data and generating data information based on the power grid data, the data information includes forming busbar interconnection components and busbar chain groups according to the busbar division in the substation, and determining the order of the busbar chain groups according to the busbar interconnection components, performing classification analysis based on the data information and forming corresponding point data sets and equipment sets, and setting unit grids based on the point data sets and equipment sets, configuring corresponding equipment sets according to the unit grids to form a path layout for the equipment, and combining the point data sets, equipment sets and unit grids to form an internal layout of the substation for the substation.

[0050] The mapping module is configured with an image processing strategy, which includes obtaining data information in the substation, adjusting the interval order and interval direction of the equipment in the bus according to the order of the bus chain groups, and merging and optimizing the substation to form mapping data after adjusting the order of the bus chain groups, and generating a power supply guarantee map corresponding to high-risk users based on the mapping data.

[0051] The management and control subsystem includes a grading module and a control module. The grading module is configured with a priority strategy. The priority strategy includes, when merging and optimizing the split substations, retrieving the equipment set and the position of the corresponding equipment on the bus chain group, and generating the bus priority in the corresponding unit grid according to the position of the equipment in the corresponding bus chain group. The control module is configured with a cutting strategy. The cutting strategy includes retrieving the power supply diagram and monitoring the equipment in the power supply diagram in real time. When a short circuit occurs in the equipment, a cutting signal is generated and the bus priority is retrieved. The bus chain group is controlled according to the bus priority to cut and control the equipment.

[0052] The specific steps corresponding to obtaining power grid data and generating data information in the path networking strategy are:

[0053] S10: Data preparation;

[0054] Connect the disconnectors installed on the busbars of two parallel rows of switches in the substation to form a bus coupler, form a busbar interconnection component with a group of busbars that are related to each other, and form a busbar chain group with the busbar interconnection component from the starting busbar to the ending busbar;

[0055] The equipment information in the bus chain group in the substation is read and data information is formed. The data information includes point equipment sub-information, edge equipment sub-information and in-station equipment sub-information. The types of the read point equipment sub-information are classified and a point data set is formed. The point equipment sub-information represents the type information of a single power supply device. The point equipment sub-information includes high-risk user equipment, split substation equipment and main transformer equipment. The point data set is used to count the equipment type information represented by the same type of point equipment sub-information. The edge equipment sub-information represents the equipment on the same bus chain group and forms an equipment set. The in-station equipment sub-information represents the type of all power supply equipment in the substation and the information set of power supply data, and a unit grid is formed according to the type of equipment in the point data set and the equipment set and the position of the bus chain group.

[0056] The specific method of forming a path layout according to the unit grid in the path networking strategy is:

[0057] S20: device path layout;

[0058] The high-risk user equipment is used as the power supply guarantee equipment. The power supply line for the high-risk user equipment is transmitted from the high-voltage side bus of the substation through the main transformer equipment to the low-voltage side bus of the substation, and then connected to the high-risk user equipment by the low-voltage side bus;

[0059] Starting from the high-risk user equipment, index the power supply equipment units on the bus interconnection component along the bus chain group and record them. The high-risk user equipment is counted as 1 and counted as 1 layer. The number of layers of the equipment units indexed along the bus interconnection component is cumulatively increased by 1, and the layer number of the indexed equipment unit is recorded;

[0060] The equipment units along the path of the unit grid are determined to correspond to the positions of the equipment units in the unit grid of the power station, and are recorded by the row and column numbers of the equipment units. The lower left corner of the unit grid is used as the starting point of the unit grid. The equipment units are matched to the positions of the equipment units in the unit grid according to the positions indexed along the bus chain group and the bus connection components.

[0061] Adjust the grid height and grid width of the rows and columns where the equipment units are located so that the equipment units do not overlap in the unit grid;

[0062] After forming a cell grid, high-risk user equipment is placed in the center of the cell grid.

[0063] The step S10 further includes a bus information processing step S101:

[0064] Obtain the location and quantity of all buses in the substation. Based on the power supply data on the buses in the substation and the interconnection relationship between the buses, start indexing from the first unsearched bus, index one or more bus interconnection components, and find the head node of the bus interconnection component. Based on the location of the head node, obtain the bus chain group formed by the corresponding bus interconnection components;

[0065] According to whether the connection relationship between the busbars and the main transformer equipment in the busbar chain group is in a horizontal sequence in the unit grid, it is determined whether the order of the busbar chain group needs to be reversed, and if it needs to be reversed, the head node of the busbar chain group and the order of the busbar chain group are re-determined;

[0066] When determining the order of the bus chain groups, start processing from the bus interconnection component with the largest amount of power supply data, and exchange the positions of the bus interconnection components according to the front and back connection relationship of the bus interconnection components so that the positions of the bus interconnection components forming the bus chain group are in the horizontal sequence in the unit grid.

[0067] The step S10 further includes a step S102 of adjusting the order and spacing direction of the busbar chain group:

[0068] Classify and sort multiple bay switches connected to the busbars in the busbar interconnection components in the busbar chain group, obtain the positions of the external equipment units connected to the bay switches, distinguish the types of buses connected to the bay switches, and divide the buses into equal-sign layout buses and straight-line layout buses based on the busbar positions connected to the busbars. The equal-sign layout busbar indicates that two buses are parallel to each other and have an upper or lower relative position setting, and the straight-line layout busbar indicates that two buses are arranged horizontally.

[0069] Determine the direction of the bay switches on the straight-line busbars. Direct the bay switches on the busbars downward, and the other bay switches upward or downward according to the positions of the connected equipment units.

[0070] Determine the direction of the interval switch on the equal-sign busbar, and adjust the interval switch connected to the main transformer equipment to the busbar position. If the upper busbar is connected to the lower main transformer, adjust the interval switch on the busbar to the lower busbar. If the lower busbar is connected to the upper main transformer equipment, adjust the interval switch on the busbar to the upper busbar. After adjusting the position of the interval switch, adjust the final direction of the interval switch according to the position of the equal-sign layout busbar where the busbar is located, with the interval switch connected to the upper busbar facing upward and the interval switch on the lower busbar facing downward.

[0071] The step S102 also includes the step of arranging the positions of the straight busbars:

[0072] Count the number of bay switches pointing upward and downward on a busbar. When the number of bay switches pointing upward and downward is inconsistent, insert bay switches into the number of bay switches on the side with fewer bay switches, so that the number of bay switches on both sides is consistent. Calculate the length of the busbar based on the bay switches on the side with more bay switches. The busbar length is calculated as follows: busbar length = number of bay switches on one side * width of bay switches. Calculate the total length of the horizontal busbars in the substation based on the length of the busbar to determine the length of the substation. The substation length is calculated as follows: substation length = length of all busbars + distance between busbars * (total number of busbars + 1). Calculate the width of the substation along the vertical direction of the busbar assembly. Calculate the left and right widths of the substation with the center point of the substation as the center, and record the left and right widths as the values in the X-axis direction, and the up and down lengths as the values in the Y-axis direction.

[0073] The starting position of the first busbar is calculated relative to the substation, and the positions of all busbars in the substation relative to the substation center are calculated according to the method of calculating the position of the first busbar.

[0074] The step S102 also includes the step of arranging the positions of the equal-sign busbars:

[0075] The length direction of the substation is recorded as the Y-axis direction, and the width direction is recorded as the X-axis direction. The spacing between the equal-sign busbars is obtained and the spacing value is generated. The total length and total width of the substation are calculated based on the total length and spacing values of the busbars in the X-axis and Y-axis directions respectively. The relative position of the busbar relative to the center point of the substation is obtained from the starting position to the end position of the busbar along the length and width directions. The length of each busbar is calculated, and the maximum length of the same group of busbars is counted as the length value of this group of busbars. The width of the substation is calculated as follows: the width of the substation = the combined length value of each group of busbars + the distance value between the busbars * (the total number of busbars + 1).

[0076] To calculate the position of each busbar relative to the substation, first determine the busbar's y-value. The longitudinal distance between the two busbars is the interbusbar spacing. The upper busbar of the equal-sign busbar is equal to half the interbusbar spacing, and the lower busbar of the equal-sign busbar is equal to -half the interbusbar spacing. Next, calculate the x-value of the equal-sign busbar. The starting position of the first busbar group is equal to -half the substation width + the interbusbar spacing. The ending position of the first busbar group is equal to the starting position of the first busbar group + the width of the first busbar group. This process is repeated to calculate the relative positions of all busbars relative to the center point of the substation.

[0077] The step S30 of calculating the position of the interval switch is also included:

[0078] After obtaining the relative position of the busbar in the substation, first calculate the position of the bay switch upward on the busbar. Starting from the starting point of the bay switch on the corresponding busbar, the starting position of the bay switch is obtained by adding half of the width between the bay switches to the starting position of the busbar. The position of the subsequent bay switches is the starting position of the bay switch plus the width between the bay switches.

[0079] The image processing strategy is specifically as follows:

[0080] After the unit grid is formed by the busbar chain group, the unit grid is proportionally adjusted according to the actual length and width of the substation. A scaling threshold is configured during the scaling adjustment. The unit grid is scaled according to the scaling threshold so that the equipment units in the scaled unit grid do not overlap and the unit grid matches the actual length and width of the substation;

[0081] Taking the lower left position of the unit grid drawing as the origin, the center position of the equipment unit is calculated based on the position of any small grid in the unit grid. At the same time, the position of the busbar and the interval switch in the substation is restored. According to the connection relationship between the main transformer equipment and the busbar, the main transformer equipment and the interval switch on the corresponding busbar are adjusted to align along the Y-axis direction, and the position coordinates of the high-risk user equipment are adjusted to the lower center position of all equipment units and recorded in the drawing data to form the corresponding power supply diagram.

[0082] The control module is also configured with a device identifier. When forming a power supply diagram, the device identifier of the corresponding device unit is assigned to the device unit and displayed. The specific splitting strategy is:

[0083] When generating the power supply diagram, an attached label signal is also generated. The control module assigns the equipment identifier to the equipment unit and generates a monitoring signal. The control module monitors the equipment unit and the bus chain group connected to the equipment unit in real time. When a short circuit or circuit failure occurs in the equipment unit and a cutting signal is generated, the operating status of the equipment unit is retrieved to determine whether the corresponding equipment unit can be controlled to be cut off. If the cutting is successful, it is cut off separately. If it cannot be cut off, the bus priority of the bus chain group where the faulty equipment unit is located is retrieved to determine whether the corresponding bus chain group can be cut off. If it cannot be cut off, the upper-level bus chain group is retrieved for cutting, and the bus chain group at the same level as the faulty equipment unit is obtained for power distribution to correct the power supply stability of the substation.

[0084] Working principle and its effect:

[0085] By acquiring grid data and generating data information corresponding to the grid data, the busbar settings in the substation are obtained, and the busbars are divided into types to form busbar interconnection components and busbar chain groups. The length and width dimensions of the substation are obtained by arranging the busbar chain groups in sequence, and the formed unit grid is adjusted according to the size of the substation. The formation of the unit grid is obtained through the point data set and the equipment set, so as to obtain a reasonable layout arrangement of the equipment and busbars in the substation, and thus obtain the final power supply diagram. According to the control subsystem combined with the power supply diagram, the accurate position of the equipment unit in the substation and the busbar priority corresponding to the equipment unit are obtained. Therefore, when an equipment unit fails and needs to be cut, it can be accurately and efficiently controlled according to the power supply diagram, and after cutting, power distribution is performed according to the busbar priority, ensuring the stable cutting of the substation equipment unit and the stable power supply, and achieving the intelligent formation of the power supply diagram and the effective control of the power station based on the power supply diagram.

[0086] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A layout control system for a power grid high-risk user power supply diagram, characterized in that: include: Layout subsystem and control subsystem; The layout subsystem includes a networking module and a mapping module. The networking module is configured with a path networking strategy. The path networking strategy includes acquiring power grid data and generating data information based on the power grid data. The data information includes forming busbar interconnection components and busbar chain groups based on busbar division within the substation, and determining the order of the busbar chain groups based on the busbar interconnection components. Classification and analysis are performed based on the data information to form corresponding point data sets and device sets. Unit grids are set based on the point data sets and device sets. The corresponding device sets are configured according to the unit grids to form a path layout for the devices. The point data sets, device sets, and unit grids are combined to form an internal layout of the substation. The mapping module is configured with an image processing strategy, which includes obtaining data information in the substation, adjusting the interval order and spacing direction of the equipment in the busbar according to the order of the busbar chain groups, and merging and optimizing the substation after the order of the busbar chain groups is adjusted to form mapping data, and generating a power supply guarantee map corresponding to high-risk users based on the mapping data; The management and control subsystem includes a grading module and a control module. The grading module is configured with a priority strategy. The priority strategy includes retrieving the equipment set and the position of the corresponding equipment on the bus chain group when merging and optimizing the split substations, and generating the bus priority in the corresponding unit grid according to the position of the equipment in the corresponding bus chain group. The control module is configured with a cutting strategy. The cutting strategy includes retrieving the power supply diagram and monitoring the equipment in the power supply diagram in real time. When a short circuit occurs in the equipment, a cutting signal is generated and the bus priority is retrieved. The bus chain group is controlled according to the bus priority to cut and control the equipment.

2. The layout control system for the power grid high-risk user power supply diagram according to claim 1 is characterized in that: The path networking strategy includes the following specific steps: obtaining grid data and generating data information based on the grid data: S10: Data preparation; Connect the disconnectors installed on the busbars of two parallel rows of switches in the substation to form a bus coupler, form a busbar interconnection component with a group of busbars that are related to each other, and form a busbar chain group with the busbar interconnection component from the starting busbar to the ending busbar; The equipment information in the bus chain group in the substation is read and data information is formed. The data information includes point equipment sub-information, edge equipment sub-information and in-station equipment sub-information. The types of the read point equipment sub-information are classified and a point data set is formed. The point equipment sub-information represents the type information of a single power supply device. The point equipment sub-information includes high-risk user equipment, split substation equipment and main transformer equipment. The point data set is used to count the equipment type information represented by the same type of point equipment sub-information. The edge equipment sub-information represents the equipment on the same bus chain group and forms an equipment set. The in-station equipment sub-information represents the type of all power supply equipment in the substation and the information set of power supply data, and a unit grid is formed according to the type of equipment in the point data set and the equipment set and the position of the bus chain group.

3. The layout control system for the power grid high-risk user power supply diagram according to claim 2 is characterized in that: The specific method of forming a path layout for devices according to the unit grid configuration corresponding to the device set in the path networking strategy is: S20: device path layout; The high-risk user equipment is used as the power supply guarantee equipment. The power supply line for the high-risk user equipment is transmitted from the high-voltage side bus of the substation through the main transformer equipment to the low-voltage side bus of the substation, and then connected to the high-risk user equipment by the low-voltage side bus; Starting from the high-risk user equipment, index the power supply equipment units on the bus interconnection component along the bus chain group and record them. The high-risk user equipment is counted as 1 and counted as 1 layer. The number of layers of the equipment units indexed along the bus interconnection component is cumulatively increased by 1, and the layer number of the indexed equipment unit is recorded; The equipment units along the path of the unit grid are determined to correspond to the positions of the equipment units in the unit grid of the power station, and are recorded by the row and column numbers of the equipment units. The lower left corner of the unit grid is used as the starting point of the unit grid. The equipment units are matched to the positions of the equipment units in the unit grid according to the positions indexed along the bus chain group and the bus connection components. Adjust the grid height and grid width of the rows and columns where the equipment units are located so that the equipment units do not overlap in the unit grid; After forming a cell grid, high-risk user equipment is placed in the center of the cell grid.

4. The layout control system for the power grid high-risk user power supply diagram according to claim 3 is characterized in that: The step S10 further includes a bus information processing step S101: Obtain the location and quantity of all buses in the substation. Based on the power supply data on the buses in the substation and the interconnection relationship between the buses, start indexing from the first unsearched bus, index one or more bus interconnection components, and find the head node of the bus interconnection component. Based on the location of the head node, obtain the bus chain group formed by the corresponding bus interconnection components; According to whether the connection relationship between the busbars and the main transformer equipment in the busbar chain group is in a horizontal sequence in the unit grid, it is determined whether the order of the busbar chain group needs to be reversed, and if it needs to be reversed, the head node of the busbar chain group and the order of the busbar chain group are re-determined; When determining the order of the bus chain groups, start processing from the bus interconnection component with the largest amount of power supply data, and exchange the positions of the bus interconnection components according to the front and back connection relationship of the bus interconnection components so that the positions of the bus interconnection components forming the bus chain group are in the horizontal sequence in the unit grid.

5. The layout control system for the power grid high-risk user power supply diagram according to claim 4 is characterized in that: The step S10 further includes a step S102 of adjusting the order and spacing direction of the busbar chain group: Classify and sort multiple bay switches connected to the busbars in the busbar interconnection components in the busbar chain group, obtain the positions of the external equipment units connected to the bay switches, distinguish the types of buses connected to the bay switches, and divide the buses into equal-sign layout buses and straight-line layout buses based on the busbar positions connected to the busbars. The equal-sign layout busbar indicates that two buses are parallel to each other and have an upper or lower relative position setting, and the straight-line layout busbar indicates that two buses are arranged horizontally. Determine the direction of the bay switches on the straight-line busbars. Direct the bay switches on the busbars downward, and the other bay switches upward or downward according to the positions of the connected equipment units. Determine the direction of the interval switch on the equal-sign busbar, and adjust the interval switch connected to the main transformer equipment to the busbar position. If the upper busbar is connected to the lower main transformer, adjust the interval switch on the busbar to the lower busbar. If the lower busbar is connected to the upper main transformer equipment, adjust the interval switch on the busbar to the upper busbar. After adjusting the position of the interval switch, adjust the final direction of the interval switch according to the position of the equal-sign layout busbar where the busbar is located, with the interval switch connected to the upper busbar facing upward and the interval switch on the lower busbar facing downward.

6. The layout control system for the power grid high-risk user power supply diagram according to claim 5 is characterized in that: The step S102 also includes the step of arranging the positions of the straight busbars: Count the number of bay switches pointing upward and downward on a busbar. When the number of bay switches pointing upward is inconsistent with the number of bay switches pointing downward, insert bay switches to the number of bay switches on the side with fewer bay switches until the number of bay switches on both sides is consistent. Calculate the length of the busbar based on the bay switches on the side with more bay switches. Calculate the total length of the busbars in the horizontal direction of the substation based on the length of the busbars to determine the length of the substation. Calculate the width of the substation by calculating the busbar assembly in the vertical direction of the substation. Calculate the left and right widths of the substation with the center point of the substation as the center, and record the left and right widths as the values in the X-axis direction, and the vertical length as the value in the Y-axis direction. The position of the first busbar starting position relative to the substation is calculated, and the positions of all busbars in the substation relative to the substation center are calculated according to the method of calculating the first busbar position.

7. The layout control system for the power grid high-risk user power supply diagram according to claim 5 is characterized in that: The step S102 also includes the step of arranging the positions of the equal-sign busbars: The length direction of the substation is recorded as the Y-axis direction, and the width direction is recorded as the X-axis direction. The spacing between the equal-sign busbars is obtained and the interval value is generated. The total length and total width of the substation are calculated based on the total length and interval values of the busbars in the X-axis and Y-axis directions respectively. The relative position of the busbar relative to the center point of the substation is obtained from the starting position to the ending position of the busbar along the length and width directions.

8. The layout control system for the power grid high-risk user power supply diagram according to claim 7 is characterized in that: The step S30 of calculating the position of the interval switch is also included: After obtaining the relative position of the busbar in the substation, first calculate the position of the bay switch upward on the busbar. Starting from the starting point of the bay switch on the corresponding busbar, the starting position of the bay switch is obtained by adding half of the width between the bay switches to the starting position of the busbar. The position of the subsequent bay switches is calculated by adding the width between the bay switches to the starting position of the bay switch.

9. The layout control system for the power grid high-risk user power supply diagram according to claim 8 is characterized in that: The image processing strategy is specifically as follows: After the unit grid is formed by the busbar chain group, the unit grid is proportionally adjusted according to the actual length and width of the substation. A scaling threshold is configured during the scaling adjustment. The unit grid is scaled according to the scaling threshold so that the equipment units in the scaled unit grid do not overlap and the unit grid matches the actual length and width of the substation; Taking the lower left position of the unit grid drawing as the origin, the center position of the equipment unit is calculated based on the position of any small grid in the unit grid. At the same time, the position of the busbar and the interval switch in the substation is restored. According to the connection relationship between the main transformer equipment and the busbar, the main transformer equipment and the interval switch on the corresponding busbar are adjusted to align along the Y-axis direction, and the position coordinates of the high-risk user equipment are adjusted to the lower center position of all equipment units and recorded in the drawing data to form the corresponding power supply diagram.

10. The layout control system for a power grid high-risk user power supply diagram according to any one of claims 1 to 8, characterized in that: The control module is also configured with a device identifier. When forming a power supply diagram, the device identifier of the corresponding device unit is assigned to the device unit and displayed. The specific segmentation strategy is: When generating the power supply diagram, an attached label signal is also generated. The control module assigns the equipment identifier to the equipment unit and generates a monitoring signal. The control module monitors the equipment unit and the bus chain group connected to the equipment unit in real time. When a short circuit or circuit fault occurs in the equipment unit, a cutting signal is generated, and the operating status of the equipment unit is retrieved to determine whether the corresponding equipment unit can be controlled to be cut off. If the cutting is successful, it is cut off separately. If it cannot be cut off, the bus priority of the bus chain group where the faulty equipment unit is located is retrieved to determine whether the corresponding bus chain group can be cut off. If it cannot be cut off, the upper-level bus chain group is retrieved for cutting, and the bus chain group at the same level as the faulty equipment unit is obtained for power distribution to correct the power supply stability of the substation.

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