CN112287495B - Method, device and system for judging subsection rationality of grid frame of power distribution network - Google Patents
Method, device and system for judging subsection rationality of grid frame of power distribution network Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, a device and a system for judging the segment rationality of a power distribution network frame, wherein the method for judging the segment rationality of the power distribution network frame comprises the following steps: based on the topological relation table, determining a line where a transformer is located in a transformer substation connecting line and a section of the line where the transformer is located by adopting a sequence searching algorithm so as to determine the number of transformers and the number of users in each section of the line; comparing the number of transformers of each road section in the circuit with a corresponding preset number of transformers threshold, comparing the number of users of each road section with a corresponding preset number of users threshold, and determining that the circuit is unreasonable and sending out prompt information when the number of transformers of any road section in the circuit exceeds the corresponding preset number of transformers threshold and/or the number of users of any road section in the circuit exceeds the corresponding preset number of users threshold. The technical scheme provided by the embodiment of the invention can improve the reliability of the segment rationality judgment so as to improve the power supply reliability of the power distribution network frame.
Description
Technical Field
The embodiment of the invention relates to a grid monitoring technology, in particular to a method, a device and a system for judging the segment rationality of a grid of a power distribution network.
Background
In the power system, the planning of a power distribution network frame such as a 10kV power distribution network frame is the basis and key of the construction of the 10kV power distribution network. The planning of the network frame of the power distribution network is based on the reliability of power supply, the problems of the network frame of the current situation such as unreasonable segmentation are deeply analyzed, and the planning scheme is continuously optimized by combining the power consumption requirements of users. Therefore, accurate and reliable judgment on the segment rationality of the grid frame of the power distribution network is needed to ensure a better power supply effect.
At present, the existing segmentation rationality judging method of the power distribution network frame generally needs manual assistance, manually identifies important information such as the segmentation number of lines, the number of users of each branch line, contact relations and the like, analyzes whether the network frame has problems according to established rules, and if the manually identified information is wrong in the process, the problem that the power distribution network frame cannot be found accurately can be caused, and the real-time performance and reliability of judgment are affected.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a system for judging the segment rationality of a power distribution network frame, which are used for rapidly and accurately analyzing the problems of the power distribution network frame line structure and improving the reliability of the segment rationality judgment of the power distribution network frame line, thereby improving the power supply reliability of the power distribution network frame.
In a first aspect, an embodiment of the present invention provides a method for determining segment rationality of a grid structure of a power distribution network, including:
Acquiring CIM file data of a grid frame of the power distribution network;
generating a topological relation table of the connection lines of each transformer substation in the power distribution network frame according to CIM file data; the topology relation table comprises connection relation information of each node and equipment information connected with each node;
Based on the topological relation table, determining a line where a transformer is located in a transformer substation connecting line and a section of the line where the transformer is located by adopting a sequence searching algorithm so as to determine the number of transformers and the number of users in each section of the line;
Comparing the number of transformers of each road section in the circuit with a corresponding preset number of transformers threshold, comparing the number of users of each road section with a corresponding preset number of users threshold, and determining that the circuit is unreasonable and sending out prompt information when the number of transformers of any road section in the circuit exceeds the corresponding preset number of transformers threshold and/or the number of users of any road section in the circuit exceeds the corresponding preset number of users threshold.
Optionally, generating a topology relationship table of each substation connection line in the power distribution network rack according to the CIM file data includes:
Determining the first node on each substation connecting line in the power distribution network frame according to CIM file data; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side;
based on a tree table searching algorithm, searching each node in the substation connecting line by taking the first node as a starting point, so as to determine the connection relation of each node and generate a topological relation table.
Optionally, determining, based on the topology relation table, the line where the transformer is located and the section of the line where the transformer is located in the substation connection line by using a sequential search algorithm includes:
Determining a tie switch in a substation connecting line according to the topological relation table; wherein the tie switch is a switch associated with at least two lines;
Based on a sequential searching algorithm, searching nodes of the tie switch, which are close to the transformer substation side, in a step-by-step reverse order by taking the tie switch as a starting point until the first node in the transformer substation connecting line is found; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side;
Searching a key node in a line between a node, close to a transformer substation, of the tie switch and a first node, and numbering the key node; the key nodes are nodes on two sides of the automatic switch equipment in the line, and the nodes in the line between the node of the tie switch close to the transformer substation side and the first node are main line nodes;
and determining a main line node corresponding to the transformer in the line according to the serial numbers of the key nodes so as to determine the line where the transformer is located and the section of the line where the transformer is located.
Optionally, after determining the number of transformers and the number of users in each section of the line, the method includes:
Generating a data table based on the determined number of transformers and the determined number of users in each road section in the line, and displaying and outputting the data table; the data table comprises the number of transformers and the number of users of each road section in the line.
Optionally, the method further comprises:
And storing the acquired CIM file data and the generated topological relation table into a database.
Optionally, the CIM file data includes data of connection lines of each substation in the grid rack of the power distribution network, and node data and equipment data on the connection lines.
Optionally, the CIM file data is single line drawing CIM file data.
In a second aspect, an embodiment of the present invention further provides a device for determining segment rationality of a grid frame of a power distribution network, including:
The data acquisition module is used for acquiring CIM file data of the grid frame of the power distribution network;
The table generation module is used for generating a topological relation table of the connection lines of each transformer substation in the power distribution network frame according to CIM file data; the topology relation table comprises connection relation information of each node and equipment information connected with each node;
The transformer and user number determining module is used for determining the line where the transformer is located in the transformer substation connecting line and the section of the line where the transformer is located based on the topological relation table by adopting a sequence searching algorithm so as to determine the number of transformers and the number of users in each section of the line;
the rationality determining module is used for comparing the number of transformers in each road section in the circuit with a corresponding preset number of transformers threshold value, comparing the number of users in each road section with a corresponding preset number of users threshold value, and determining that the circuit is unreasonable and sends out prompt information when the number of transformers in any road section in the circuit exceeds the corresponding preset number of transformers threshold value and/or the number of users in any road section in the circuit exceeds the corresponding preset number of users threshold value.
In a third aspect, an embodiment of the present invention further provides a system for determining segment rationality of a grid rack of a power distribution network, including: a logic operator and a display module; the logic operator is electrically connected with the display module, and the segment rationality judging device of the power distribution network frame according to the second aspect is integrated in the logic operator.
Optionally, the system for judging segment rationality of the grid frame of the power distribution network further comprises a data export module, wherein the data export module is electrically connected with the logic arithmetic unit and is used for exporting a data table generated by the logic arithmetic unit.
According to the segmentation rationality judging method, device and system of the power distribution network frame, the CIM file data of the power distribution network frame are obtained, and the topology relation table of all transformer substation connecting lines in the power distribution network frame is generated according to the CIM file data, so that the line segments of the lines where the transformers in the transformer substation connecting lines are located and the line segments of the lines where the transformers are located are determined by adopting a sequential searching algorithm based on the topology relation table, the number of the transformers and the number of users of all the line segments are determined, the number of the transformers of all the line segments is compared with the corresponding preset number of transformers threshold, the number of the users of all the line segments is compared with the corresponding preset number of users threshold, and when the number of the transformers of any one of the line segments exceeds the corresponding preset number of transformers threshold and/or the number of the users of any one of the line segments exceeds the corresponding preset number of users threshold, the line segments are determined to be unreasonable and prompt information is sent. Compared with the existing method for judging the segment rationality of the power distribution network frame, the method, the device and the system for judging the segment rationality of the power distribution network frame, provided by the embodiment of the invention, are used for determining the number of transformers and the number of users of each section in a line according to the line topological relation table generated by CIM file data, automatically determining whether the segment of the line is reasonable according to the number of transformers and the number of users of each section in the line, and further can quickly and efficiently determine the problem of the line structure of the power distribution network frame without manual assistance, and avoid segment rationality judgment errors caused by mistakes in manually collecting information, thereby improving the reliability of segment rationality judgment and improving the power supply reliability of the power distribution network frame.
Drawings
Fig. 1 is a flowchart of a method for judging segment rationality of a grid rack of a power distribution network according to an embodiment of the present invention;
Fig. 2 is a flowchart of a method for judging segment rationality of a grid rack of a power distribution network according to a second embodiment of the present invention;
Fig. 3 is a block diagram of a device for judging segment rationality of a grid frame of a power distribution network according to a third embodiment of the present invention;
Fig. 4 is a block diagram of a system for determining segment rationality of a grid structure of a power distribution network according to a fourth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a flowchart of a method for determining segment rationality of a power distribution network rack according to an embodiment of the present invention, where the method may be implemented by a device for determining segment rationality of a power distribution network rack, and the device may be integrated in a system for determining segment rationality of a power distribution network rack, and the method specifically includes the following steps:
And 110, acquiring CIM file data of the grid frame of the power distribution network.
The CIM file data comprises data of connection lines of all substations in the power distribution network frame, node data and equipment data on the connection lines, and the CIM file data can be single-line drawing CIM file data. CIM (common information model ) is an important tool for power enterprise application integration, defining a unified syntax and semantics that expresses power system resources and their properties and relationships, including common classes, properties, relationships, etc., whose classes and objects are abstract, can be used for many applications, and defines information exchange models. The CIM file is a file containing the above information. The problems of the grid line structure of the power distribution network can be comprehensively determined based on the CIM file. The CIM file may be a file in a GIS system, and GIS (production management integrated information system, geographic Information System) is a production management integrated information system that connects power equipment, a transformer substation, a power transmission and distribution network, a power consumer, a power load, and the like of a power enterprise to form power informatization. The segmentation rationality judging device of the power distribution network frame can acquire CIM file data through an input interface which is arranged by the device and is electrically connected with the GIS system, so that a corresponding topological relation table is generated according to the CIM file data.
And 120, generating a topological relation table of the connection lines of each transformer substation in the power distribution network frame according to CIM file data.
The topology relation table comprises connection relation information of each node and equipment information of connection of each node. The subsection rationality judging device of the power distribution network frame can search each node in the substation connecting line according to CIM file data so as to determine the connection relation of each node and generate a topological relation table.
In addition, the acquired CIM file data and the generated topological relation table can be stored in a database, and the database can be preferably an XML database.
And 130, determining the line where the transformers are positioned in the transformer substation connecting line and the sections of the line where the transformers are positioned by adopting a sequence searching algorithm based on the topological relation table so as to determine the number of transformers and the number of users in each section of the line.
Specifically, the interconnection switch in the substation connection line can be determined according to the topology relation table, the interconnection switch is a switch associated with at least two lines, and the switch associated with at least two lines can be a switch in which a line in which a node at one end of the switch is located is different from a line in which a node at the other end of the switch is located. Searching key nodes (nodes on two sides of the automatic switch equipment in the circuit) in the circuit between the node of the tie switch close to the transformer substation side and the node of the outgoing line switch of the transformer substation close to the transformer substation side, numbering the key nodes, determining main line nodes corresponding to the transformers in the circuit according to the numbers of the key nodes (nodes in the circuit between the node of the tie switch close to the transformer substation side and the first node are all main line nodes), and determining the circuit where the transformers are located and the sections of the circuit where the transformers are located, thereby determining the number of the transformers and the number of users in each section of the circuit.
Step 140, comparing the number of transformers in each road section with a corresponding preset number of transformers threshold, and comparing the number of users in each road section with a corresponding preset number of users threshold, and when the number of transformers in any road section exceeds the corresponding preset number of transformers threshold and/or the number of users in any road section exceeds the corresponding preset number of users threshold, determining that the road section is unreasonable and sending out prompt information.
Specifically, if it is determined that the number of transformers in any one section of the line exceeds a corresponding preset number of transformers threshold and/or the number of users in any one section of the line exceeds a corresponding preset number of users threshold, the line is unreasonable, at this time, unreasonable line sections can be determined, and prompt information of unreasonable line sections can be sent out to prompt relevant staff to take corresponding measures in time.
It should be noted that, specific values of the preset number of transformers threshold and the preset number of users threshold may be specifically set according to actual situations, and specific values of the preset number of transformers threshold and the preset number of users threshold in different road sections may be different, which is not limited herein.
According to the method for judging the segment rationality of the power distribution network frame, the topology relation table of the connecting lines of all transformer substations in the power distribution network frame is generated according to the acquired CIM file data, so that the line where the transformers are located and the road sections where the transformers are located in the connecting lines of the transformer substations are determined by adopting a sequence searching algorithm based on the topology relation table, the number of the transformers and the number of users of all the road sections in the line are determined, the number of the transformers of all the road sections in the line is compared with the corresponding preset number of transformers threshold, the number of the users of all the road sections is compared with the corresponding preset number of users threshold, and when the number of the transformers of any road section in the line exceeds the corresponding preset number of transformers threshold and/or the number of the users of any road section in the line exceeds the corresponding preset number of users threshold, the line segment is determined to be unreasonable and prompt information is sent. Compared with the existing method for judging the segment rationality of the power distribution network frame, the method for judging the segment rationality of the power distribution network frame, provided by the embodiment, determines the number of transformers and the number of users of each road section in a line according to the line topological relation table generated by CIM file data, automatically determines whether the line segment is reasonable according to the number of transformers and the number of users of each road section in the line, does not need manual assistance, further can quickly and efficiently determine the problem existing in the line structure of the power distribution network frame, and avoids segment rationality judgment errors caused by mistakes in manually collecting information, thereby improving the reliability of segment rationality judgment and improving the power supply reliability of the power distribution network frame.
Example two
Fig. 2 is a flowchart of a method for determining segment rationality of a power distribution network rack according to a second embodiment of the present invention, where the method may be performed by a device for determining segment rationality of a power distribution network rack, and the device may be integrated in a system for determining segment rationality of a power distribution network rack, and the method specifically includes the following steps:
step 210, acquiring CIM file data of a grid frame of the power distribution network; the procedure of step 210 is the same as that of step 110 in the above embodiment, and will not be described here again.
And 220, determining the first node of each substation connecting line in the power distribution network frame according to CIM file data.
The first node is a node of the outlet switch of the transformer substation, which is close to the transformer substation side. The types of the nodes can be determined according to different characteristic fields of each node in the line, and the types of the nodes comprise types of a first node, a father node, a child node, a mainline node, a non-mainline node, an end node, a key node, a non-key node and the like. The method comprises the steps of searching an outgoing line switch of a transformer substation through a characteristic field, obtaining an ID of the outgoing line switch, finding a front end node of the outgoing line switch through the characteristic field under the eye of the ID of the outgoing line switch, and obtaining the node as a first node. The specific process of determining the first node is as follows: and determining the result as an outgoing line switch of the transformer substation by searching a field < cim: powerSystemResource.PSRType rdf: resource= "# PSRTYPE _140"/>, and acquiring the outgoing line switch ID as a transformer substation switch ID (actual transformer substation outgoing line switches are different and codes are also different). Under the 'prim: TERMINAL RDF: id=' termial_substation switch id_1 '>, find the' prim: TERMINAL.
Step 230, searching each node in the substation connection line by taking the first node as a starting point based on a tree table searching algorithm so as to determine the connection relation of each node and generate a topological relation table.
Specifically, the front end NODE ID "/>" of the device is obtained by taking < cim: TERMINAL RDF:ID= "TERMINAL_device ID_1" > "as the front end NODE of the device and < cim: TERMINAL RDF:ID=" TERMINAL_device ID_2 ">" as the back end NODE of the device, and finding out the fields < cim:terminal. The topological relation can be analyzed according to the connection relation between the front end node and the back end node of the equipment, so that the first node starts to search, the topological relation of each node in the transformer substation connection line is obtained, and a topological relation table is generated, wherein the topological relation table comprises but not limited to the connection relation of each node such as the front end node, the back end node and the nodes connected with the two sides of the equipment.
Step 240, determining a tie switch in the substation connecting line according to the topological relation table.
The interconnection switch is a switch associated with at least two lines, and the switch associated with at least two lines may be a switch in which a line where a node at one end of the switch is located is different from a line where a node at the other end of the switch is located. If the "< cim: switch. Isring > true" field and "< cim: power system resource. Ownership >1" field are searched, the device with the above fields existing at the same time at the eyes is determined as a contact switch.
Step 250, searching nodes of the tie switch close to the transformer substation side in a step-by-step reverse order by taking the tie switch as a starting point based on a sequential searching algorithm until the first node in the transformer substation connecting line is found.
The first node is a node of the outlet switch of the transformer substation, which is close to the transformer substation side. And searching the front end node of the tie switch, namely the node of the tie switch close to the substation side by taking the tie switch as a starting point step by step in a reverse order until the first node in the substation connecting line is searched, wherein all nodes under the path can be marked as main line nodes, the main line nodes form a main line, and the other nodes outside the main line nodes are non-main line nodes.
Step 260, searching for a key node in a line between a node, close to the transformer substation, of the tie switch and a first node, and numbering the key node.
The key nodes are nodes at two sides of automatic SWITCH equipment in a line, and the key nodes can be searched on a main line, for example, the key nodes are searched on the main line, if the key nodes are searched on the main line, and if the key nodes are determined to be the key nodes, the key nodes are the key nodes if the key nodes are the key nodes, and the key nodes are the key nodes. The device class defined in the CIM file may include "break" and "LoadBreakSwitch" and the device class is determined by looking up the corresponding fields. The key nodes are arranged in a reverse order to carry out segment numbering, namely, the segment numbering is carried out from far to near according to the distance from the key nodes to the transformer substation, and the specific numbers can be 1,2, 3, 4.
Step 270, determining a main line node corresponding to the transformer in the line according to the serial number of the key node, so as to determine the line where the transformer in the substation connection line is located and the section of the line where the transformer is located.
The nodes in the line between the node of the tie switch close to the transformer substation side and the first node are all main line nodes. Can find "< cim: transformation, routing type > primary" < cim: transformerWinding rdf: the id= "WINDING _transformer ID" "field, and the device with the above fields at the same time in the eye is determined to be a transformer. And adopting a sequential searching algorithm, and carrying out reverse-order searching by taking the transformer as a starting point until the searched node is a key node, so that the main line node of the transformer can be determined, and the section of the transformer, namely the line where the transformer is located and the section of the line where the transformer is located, can be determined.
Step 280, determining the number of transformers and the number of users in each section of the line based on the line where the transformers are located and the section of the line where the transformers are located in the transformer substation connection line.
Specifically, when determining the line where each transformer in the transformer substation connecting line is located and the section of the line where each transformer is located, the sum of transformers in a certain section can be used as the number of transformers in the section, and the sum of the numbers of users corresponding to the transformers in the certain section is correspondingly used as the number of users in the section.
Step 290, comparing the number of transformers in each road section with a corresponding preset number of transformers threshold, and comparing the number of users in each road section with a corresponding preset number of users threshold, when the number of transformers in any road section exceeds the corresponding preset number of transformers threshold and/or the number of users in any road section exceeds the corresponding preset number of users threshold, determining that the road section is unreasonable and sending out prompt information.
Specifically, if it is determined that the number of transformers in any one section of the line exceeds a corresponding preset number of transformers threshold and/or the number of users in any one section of the line exceeds a corresponding preset number of users threshold, the line is unreasonable, at this time, unreasonable line sections can be determined, and prompt information of unreasonable line sections can be sent out to prompt relevant staff to take corresponding measures in time.
It should be noted that, specific values of the preset number of transformers threshold and the preset number of users threshold may be specifically set according to actual situations, and specific values of the preset number of transformers threshold and the preset number of users threshold in different road sections may be different, which is not limited herein.
Step 291, based on the determined number of transformers and the number of users in each section of the line, a data table is generated and displayed and output.
The data table comprises the number of transformers and the number of users in each road section in the line and unreasonable road sections, wherein the number of transformers exceeding the corresponding preset number of transformers threshold in the line and the number of users exceeding the corresponding preset number of users threshold in the line can be marked in different fonts or colors, and the data table is displayed, so that relevant staff can intuitively observe the number of transformers and the number of users in each road section, and the staff can know the condition of each road section. By outputting the data form, related personnel can extract different data according to actual demands, and the demands of planning personnel are fully met; the data in the data table can also be used for line automatic segmentation number calculation, automatic segmentation user number calculation and the like, and the expansion application range is wide.
According to the segmentation rationality judging method for the power distribution network frame, the topology relation table of each transformer substation connecting line in the power distribution network frame is generated according to the acquired CIM file data, so that the line segments are unreasonable and prompt information is sent out based on the topology relation table, the number of transformers and the number of users of each section in the line are determined, the number of transformers of each section in the line is compared with the corresponding preset number of transformers threshold value, the number of users of each section is compared with the corresponding preset number of users threshold value, and when the number of transformers of any section in the line exceeds the corresponding preset number of transformers threshold value and/or the number of users of any section in the line exceeds the corresponding preset number of users threshold value, the data table is generated, displayed and output based on the determined number of transformers and the number of users of each section in the line. Compared with the existing method for judging the segment rationality of the power distribution network frame, the method for judging the segment rationality of the power distribution network frame, provided by the embodiment, determines the number of transformers and the number of users of each road section in a line according to the line topological relation table generated by CIM file data, automatically determines whether the line segment is reasonable according to the number of transformers and the number of users of each road section in the line, does not need manual assistance, further can quickly and efficiently determine the problem of the line structure of the power distribution network frame, and avoids segment rationality judgment errors caused by mistakes in manually collecting information, thereby improving the reliability of segment rationality judgment and improving the power supply reliability of the power distribution network frame; the complex data information is not required to be read and judged manually, the data information is displayed in an intuitive table form, the workload of planning personnel is greatly reduced, unreasonable lines of the net rack can be automatically analyzed, and the synchronous improvement of quality and efficiency is realized; because the GIS user can continuously update the input data, only the latest CIM file is needed to be obtained, the latest CIM file data is stored in the database after operation, and the data update is quick; by outputting the data form, related personnel can extract different data according to actual demands, and the demands of planning personnel are fully met; the data in the data table can also be used for line automatic segmentation number calculation, automatic segmentation user number calculation and the like, and the expansion application range is wide.
Example III
Fig. 3 is a block diagram of a device for determining segment rationality of a grid rack of a power distribution network according to a third embodiment of the present invention, where the device includes a data acquisition module 310, a table generation module 320, a transformer and user number determination module 330, and a rationality determination module 340; the data acquisition module 310 is configured to acquire CIM file data of the grid structure of the power distribution network; the table generating module 320 is configured to generate a topology relationship table of each substation connection line in the power distribution network rack according to the CIM file data; the topology relation table comprises connection relation information of each node and equipment information connected with each node; the transformer and user number determining module 330 is configured to determine, based on the topology relation table, a line where the transformer is located and a section of the line where the transformer is located in the transformer substation connection line by using a sequential search algorithm, so as to determine the number of transformers and the number of users in each section of the line; the rationality determining module 340 is configured to compare the number of transformers in each road segment with a corresponding preset number of transformers threshold, and compare the number of users in each road segment with a corresponding preset number of users threshold, and determine that the road segment is unreasonable and send out a prompt message when the number of transformers in any road segment in the road exceeds the corresponding preset number of transformers threshold and/or the number of users in any road segment in the road exceeds the corresponding preset number of users threshold.
On the basis of the above embodiment, the table generation module 320 includes a node determination unit and a table generation unit; the node determining unit is used for determining the first node on the connecting line of each transformer substation in the power distribution network frame according to CIM file data; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side; the table generation unit is used for searching each node in the substation connecting line by taking the first node as a starting point based on a tree table searching algorithm so as to determine the connection relation of each node and generate a topological relation table.
Preferably, the transformer and user number determining module 330 includes a switch determining unit, a node searching unit, a node numbering unit and a road section determining unit; the switch determining unit is used for determining a tie switch in a transformer substation connecting line according to the topological relation table; wherein the tie switch is a switch associated with at least two lines; the node searching unit is used for searching nodes, close to the transformer substation, of the tie switch in a step-by-step reverse order by taking the tie switch as a starting point based on a sequence searching algorithm until the first node in a transformer substation connecting line is searched; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side; the node numbering unit is used for searching key nodes in the line between the node, close to the transformer substation side, of the tie switch and the first node, and numbering the key nodes; the key nodes are nodes on two sides of the automatic switch equipment in the line, and the nodes in the line between the node of the tie switch close to the transformer substation side and the first node are main line nodes; the road section determining unit is used for determining a main line node corresponding to the transformer in the line according to the serial numbers of the key nodes so as to determine the line where the transformer is located and the road section of the line where the transformer is located.
In one embodiment, the device for judging the segment rationality of the grid frame of the power distribution network further comprises a data generating module, which is used for generating a data table based on the number of transformers and the number of users of each road section in the determined line, and displaying and outputting the data table; the data table comprises the number of transformers and the number of users of each road section in the line.
Preferably, the device for judging the segment rationality of the grid frame of the power distribution network further comprises a table storage module, wherein the table storage module is used for storing the acquired CIM file data and the generated topological relation table into a database.
The device for judging the segment rationality of the power distribution network frame provided by the embodiment and the method for judging the segment rationality of the power distribution network frame provided by any embodiment of the invention belong to the same invention conception, have corresponding beneficial effects, and are not detailed in the embodiment.
Example IV
Fig. 4 is a block diagram of a system for determining segment rationality of a grid rack of a power distribution network according to a fourth embodiment of the present invention, where the system includes: a logic operator 10 and a display module 20; the logic operator 10 is electrically connected to the display module 20, and the device 30 for determining the segment rationality of the grid structure of the power distribution network according to any of the embodiments is integrated in the logic operator 10.
The segment rationality judging device 30 of the power distribution network rack integrated in the logic operator 10 can realize segment rationality judgment of the power distribution network rack through a data acquisition module, a table generating module, a transformer and user quantity determining module and a rationality determining module, the display module 20 can be used for displaying a data table generated by the logic operator 10, the data table comprises the number of transformers and the number of users in each road section in a line, and unreasonable road sections, and relevant staff can intuitively observe the number of transformers and the number of users in each road section through displaying the data table, so that the situation of each road section can be known.
Optionally, the system for judging segment rationality of the grid structure of the power distribution network further includes a data export module 40, where the data export module 40 is electrically connected to the logic operator 10, and the data export module 40 is configured to export a data table generated by the logic operator 10.
Specifically, the data table includes the number of transformers and the number of users in each section of the line, and the unreasonable sections, and the data export module 40 can enable related personnel to extract different data according to actual requirements, so as to fully satisfy the requirements of planning personnel; the data can be used for line automation segmentation number calculation, automation segmentation user number calculation and the like according to actual requirements after being exported, and the expansion application range is wide.
The system for judging the segment rationality of the power distribution network frame provided by the embodiment and the method for judging the segment rationality of the power distribution network frame provided by any embodiment of the invention belong to the same invention conception, have corresponding beneficial effects, and are not detailed in the embodiment.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (9)
1. The method for judging the segment rationality of the grid frame of the power distribution network is characterized by comprising the following steps of:
Acquiring CIM file data of a grid frame of the power distribution network;
generating a topological relation table of the connection lines of each transformer substation in the power distribution network frame according to the CIM file data; the topology relation table comprises connection relation information of each node and equipment information connected with each node;
Based on the topological relation table, determining a line where a transformer is located in a transformer substation connecting line and a section of the line where the transformer is located by adopting a sequential searching algorithm so as to determine the number of transformers and the number of users in each section of the line;
Comparing the number of transformers of each road section in the line with a corresponding preset number of transformers threshold, comparing the number of users of each road section with a corresponding preset number of users threshold, and determining that the line section is unreasonable and sending prompt information when the number of transformers of any road section in the line exceeds the corresponding preset number of transformers threshold and/or the number of users of any road section in the line exceeds the corresponding preset number of users threshold;
based on the topological relation table, determining a line where a transformer is located and a section of the line where the transformer is located in a transformer station connecting line by adopting a sequential search algorithm comprises:
Determining a tie switch in a substation connecting line according to the topological relation table; wherein the tie switch is a switch associated with at least two lines;
Based on a sequential searching algorithm, searching nodes of the tie switch, which are close to the transformer substation side, in a step-by-step reverse order by taking the tie switch as a starting point until the first node in a transformer substation connecting line is searched; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side;
searching a key node in a line between a node, close to a transformer substation, of the tie switch and the first node, and numbering the key node; the key nodes are nodes on two sides of the automatic switch equipment in the line, and nodes in the line between the node, close to the transformer substation, of the tie switch and the first node are main line nodes;
And determining a main line node corresponding to the transformer in the line according to the serial numbers of the key nodes so as to determine the line where the transformer is located and the section of the line where the transformer is located.
2. The method for determining segment rationality of a power distribution network according to claim 1, wherein the generating a topology relation table of each substation connection line in the power distribution network according to the CIM file data includes:
determining the first node of each substation connecting line in the power distribution network frame according to the CIM file data; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side;
and searching each node in the substation connecting line by taking the first node as a starting point based on a tree table searching algorithm so as to determine the connection relation of each node and generate a topological relation table.
3. The method for determining the segment rationality of the grid structure of the power distribution network according to claim 1, wherein after determining the number of transformers and the number of users in each section of the line, the method comprises:
Generating a data table based on the determined number of transformers and the determined number of users in each road section in the line, and displaying and outputting the data table; the data table comprises the number of transformers and the number of users in each road section in the line.
4. The method for determining segment rationality of a grid rack of a power distribution network of claim 1, further comprising:
And storing the acquired CIM file data and the generated topological relation table into a database.
5. The method for determining segment rationality of a power distribution network rack according to claim 1, wherein the CIM file data includes data of connection lines of each substation in the power distribution network rack, and node data and equipment data on the connection lines.
6. The method for judging segment rationality of a grid structure of a power distribution network according to claim 4, wherein the CIM file data is single line drawing CIM file data.
7. The utility model provides a segmentation rationality judgement device of distribution network rack which characterized in that includes:
The data acquisition module is used for acquiring CIM file data of the grid frame of the power distribution network;
The table generation module is used for generating a topological relation table of the connection lines of each transformer substation in the power distribution network frame according to the CIM file data; the topology relation table comprises connection relation information of each node and equipment information connected with each node;
The transformer and user number determining module is used for determining the line where the transformer is located and the road sections of the line where the transformer is located in the transformer station connecting line by adopting a sequence searching algorithm based on the topological relation table so as to determine the number of transformers and the number of users in each road section in the line;
The rationality determining module is used for comparing the number of transformers of each road section in the line with a corresponding preset number of transformers threshold value, comparing the number of users of each road section with a corresponding preset number of users threshold value, and determining that the line sections are unreasonable and sending prompt information when the number of transformers of any road section in the line exceeds the corresponding preset number of transformers threshold value and/or the number of users of any road section in the line exceeds the corresponding preset number of users threshold value;
the transformer and user number determining module comprises a switch determining unit, a node searching unit, a node numbering unit and a road section determining unit;
the switch determining unit is used for determining a contact switch in a transformer substation connecting line according to the topological relation table; wherein the tie switch is a switch associated with at least two lines;
the node searching unit is used for searching nodes, close to the transformer substation, of the tie switch in a step-by-step reverse order by taking the tie switch as a starting point based on a sequence searching algorithm until the first node in a transformer substation connecting line is searched; the first node is a node of an outgoing line switch of the transformer substation, which is close to the transformer substation side;
The node numbering unit is used for searching key nodes in a line between a node, close to the transformer substation, of the tie switch and the first node, and numbering the key nodes; the key nodes are nodes on two sides of the automatic switch equipment in the line, and nodes in the line between the node, close to the transformer substation, of the tie switch and the first node are main line nodes;
And the road section determining unit is used for determining a main line node corresponding to the transformer in the line according to the serial numbers of the key nodes so as to determine the line where the transformer is located and the road section of the line where the transformer is located.
8. The utility model provides a segmentation rationality judgement system of distribution network rack which characterized in that includes: a logic operator and a display module; the logic operator is electrically connected with the display module, and the segment rationality judging device of the power distribution network frame according to claim 7 is integrated in the logic operator.
9. The system for determining the segment rationality of a grid rack of a power distribution network of claim 8, further comprising a data export module electrically coupled to the logic operator, the data export module configured to export a data form generated by the logic operator.
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| CN202011133485.3A CN112287495B (en) | 2020-10-21 | Method, device and system for judging subsection rationality of grid frame of power distribution network |
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