CN116992695B - Substation cable prediction method, system, terminal and storage medium - Google Patents
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Abstract
The invention relates to the technical field of power supply, and particularly provides a substation cable prediction method, a system, a terminal and a storage medium, wherein the method comprises the following steps: acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment; the cable specification corresponding to the equipment type is established in advance, and the cable specification is generated for the cable connection structure between the equipment based on the type of the equipment of the substation topology; and counting the cable specification types and the cable lengths corresponding to various cable specifications based on a preset margin coefficient and a transformer substation topology to obtain a prediction result. The invention can realize automatic prediction of the cable and improve the accuracy of cable prediction.
Description
Technical Field
The invention belongs to the technical field of power supply, and particularly relates to a substation cable prediction method, a system, a terminal and a storage medium.
Background
With the rapid growth of the basic construction and technical improvement engineering of the transformer substation, the number of cables in the transformer substation is various, the statistics of the cables often estimates the specification and the length of the cables according to the same voltage level and the earlier transformer substation with similar scale, and once the problems of shortage, overlong and even omission of the cables with different specifications occur, the design period is directly caused, the design cables are inaccurate, and the engineering construction speed can be dragged. Therefore, the method has important significance in correctly counting the cable specification and the long sand and engineering projects.
In the transformer engineering construction, the statistics of the cable specification and the length in the transformer substation is the daily work content of a designer, and is also a basic work, and the working core accurately counts the cable specification and the length of the transformer substation according to the scale range of the transformer substation engineering. At present, the cable specification selection and length statistics are still estimated manually, namely, the designer performs estimation statistics on the basis of cables used by substations with the same voltage level and similar scale, and the method has the following problems:
1. and counting the cable specification, wherein missing and missing occur. The used control cable specification model of transformer substation is many, selects suitable cable specification according to cable function, but because of equipment function, signal are different, the cable specification can not accurately select, the missing problem appears easily.
2. The cable specification length statistics are inaccurate. And after the specification and model are selected, calculating the cable length according to the used cable path. Because the specification is inaccurate, the cable length of each specification is inconsistent with the actual cable required on site, and the problem of shortage of the statistical cable length occurs.
3. The manual statistics of the cable is slow. The number of the control cables of the transformer substation is large, the lengths of the cable paths are different, the manual statistics is performed according to the measurement of the transformer substation plane layout diagram, the workload is large, and the cable statistics speed is low.
Disclosure of Invention
Aiming at the problems of large workload and inaccurate statistical results in the prior art, the invention provides a transformer substation cable prediction method, a system, a terminal and a storage medium, which are used for solving the technical problems.
In a first aspect, the present invention provides a method for predicting a substation cable, including:
acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
the cable specification corresponding to the equipment type is established in advance, and the cable specification is generated for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
and counting the cable specification types and the cable lengths corresponding to various cable specifications based on a preset margin coefficient and a transformer substation topology to obtain a prediction result.
In an alternative embodiment, a substation floor plan and a cable trench plan are obtained, and a substation topology is generated based on the substation floor plan and the cable trench plan, the substation topology including devices and cable connection structures between the devices, including:
adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram;
redrawing lines on the cable trench positions in the cable trench layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology;
based on the position corresponding relation between the substation floor plan and the cable trench layout, converting the equipment identifier in the substation floor plan to the corresponding position of the initial topology;
and selecting matched cable ditches based on the connection requirements and the device positions between the devices, and generating connection lines between the devices on the matched cable ditches.
In an alternative embodiment, the method for setting the margin coefficient includes:
collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths;
and performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length.
In an optional embodiment, statistics is performed on cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies to obtain a prediction result, which includes:
construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficient function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
In a second aspect, the present invention provides a substation cable prediction system comprising:
the topology construction module is used for acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
the specification matching module is used for pre-establishing a cable specification corresponding to the equipment type, and generating the cable specification for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
the cable statistics module is used for carrying out statistics on cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies to obtain a prediction result.
In an alternative embodiment, the topology building module comprises:
the parameter adjusting unit is used for adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram;
the line reconstruction unit is used for redrawing lines on the cable pit positions in the cable pit layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology;
the topology generation unit is used for converting equipment identifiers in the transformer substation floor plan into corresponding positions of the initial topology based on the position corresponding relation between the transformer substation floor plan and the cable trench plan;
and the device connection unit is used for selecting matched cable ditches based on the connection requirements and the device positions between the devices and generating connection lines between the devices on the matched cable ditches.
In an alternative embodiment, the method for setting the margin coefficient includes:
collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths;
and performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length.
In an alternative embodiment, the cable statistics module includes:
construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficient function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
In a third aspect, a terminal is provided, including:
a processor, a memory, wherein,
the memory is used for storing a computer program,
the processor is configured to call and run the computer program from the memory, so that the terminal performs the method of the terminal as described above.
In a fourth aspect, there is provided a computer storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the method of the above aspects.
The method, the system, the terminal and the storage medium for predicting the transformer substation cable have the beneficial effects that the transformer substation topology is constructed, so that the prediction of the cable length between devices is realized, the transformer substation topology is subjected to cable specification matching, and finally the cable statistics is performed based on the transformer substation topology, and the problem that the actual cable is longer than the theoretical distance is considered during statistics, so that the margin coefficient is added, and the accurate cable prediction result is obtained. The invention can realize automatic prediction of the cable and improve the accuracy of cable prediction.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic flow chart of a method of one embodiment of the invention.
FIG. 2 is a schematic block diagram of a system of one embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The substation cable prediction method provided by the embodiment of the invention is executed by the computer equipment, and correspondingly, the substation cable prediction system is operated in the computer equipment.
FIG. 1 is a schematic flow chart of a method of one embodiment of the invention. The execution body of fig. 1 may be a substation cable prediction system. The order of the steps in the flow chart may be changed and some may be omitted according to different needs.
As shown in fig. 1, the method includes:
step 110, acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
step 120, pre-establishing a cable specification corresponding to the type of the equipment, and generating the cable specification for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
and 130, counting cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies to obtain a prediction result.
In order to facilitate understanding of the present invention, the method for predicting a substation cable according to the present invention is described further below with reference to a process for predicting a substation cable in an embodiment.
Specifically, the substation cable prediction method comprises the following steps:
s1, acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment.
Adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram; redrawing lines on the cable trench positions in the cable trench layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology; and converting the equipment identification in the substation floor plan into the corresponding position of the initial topology based on the position corresponding relation between the substation floor plan and the cable trench floor plan.
Specifically, a transformer substation plane layout diagram and a cable pit layout diagram are electronic drawings for construction. The transformer substation floor plan is marked with equipment placement positions, and the cable trench layout comprises cable trenches between planned different placement positions. Because the transformer substation floor plan and the cable pit layout are non-editable, after the scales of the transformer substation floor plan and the cable pit layout are adjusted to be consistent, the cable pit layout is put into a drawing tool (such as CAD) firstly, and lines are re-drawn on the cable pit, so that an editable initial topology consistent with the cable pit is obtained, and the initial topology is composed of cable pit wires.
The method comprises the steps of constructing a public coordinate system of a substation plane layout diagram and a cable trench layout diagram, putting an initial topology into the public coordinate system, acquiring coordinates of various equipment identifiers in the substation plane layout diagram, and adding corresponding equipment identifiers at corresponding coordinates of the initial topology, so that construction of the substation topology can be realized.
The equipment names are allocated to the equipment identifiers, according to the connection rules between the equipment, such as that the switch cabinet 1 needs to be connected with the switch cabinet 2, connection lines between the equipment are generated (connection lines are created between the identifiers of the switch cabinet 1 and the switch cabinet 2), cable channels are selected for the connection lines based on the positions of the equipment identifiers, namely, cable channels capable of connecting two equipment identifiers are selected, one connection line is generated on the corresponding cable channels, and numbers, such as A-1, of the 1 st line of the identifier specification A are allocated to the connection lines.
S2, pre-establishing a cable specification corresponding to the equipment type, and generating the cable specification for the cable connection structure between the equipment based on the type of the equipment of the substation topology.
Different equipment is different in corresponding cable functions, corresponding cable specifications and standby core quantity are required to be selected according to the cable functions, and specifications are marked for connecting lines between the equipment based on actual requirements and equipment types of substation topologies.
The resulting substation topology can derive the following information:
table 1 in-station equipment summary:
cable specification statistics for meter 210kV switch cabinet
And S3, counting cable specification types and cable lengths corresponding to various cable specifications based on a preset margin coefficient and a transformer substation topology to obtain a prediction result.
First, margin coefficients are set, including: collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths; and performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length.
The resulting margin coefficient function is for example,wherein l is the theoretical length of the cable corresponding to the single connecting wire, 0<a<And 1, b is an error parameter.
Construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficientA function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
When the length of the connecting line is calculated, the self function of the drawing tool, such as list command of CAD, can be adopted, and the length can be calculated by using the coordinates of the connecting line and a mathematical calculation formula (curve calculation formula and line segment calculation formula).
And respectively counting cables with different specifications, and finally summarizing the counting results.
In some embodiments, the substation cable prediction system may include a plurality of functional modules comprised of computer program segments. The computer program of each program segment in the substation cable prediction system may be stored in a memory of a computer device and executed by at least one processor to perform the functions of substation cable prediction (see fig. 1 for details).
In this embodiment, the substation cable prediction system may be divided into a plurality of functional modules according to the functions performed by the system, as shown in fig. 2. The functional modules of system 200 may include: topology construction module 210, specification matching module 220, cable statistics module 230. The module referred to in the present invention refers to a series of computer program segments capable of being executed by at least one processor and of performing a fixed function, stored in a memory. In the present embodiment, the functions of the respective modules will be described in detail in the following embodiments.
The topology construction module is used for acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
the specification matching module is used for pre-establishing a cable specification corresponding to the equipment type, and generating the cable specification for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
the cable statistics module is used for carrying out statistics on cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies to obtain a prediction result.
Optionally, as an embodiment of the present invention, the topology building module includes:
the parameter adjusting unit is used for adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram;
the line reconstruction unit is used for redrawing lines on the cable pit positions in the cable pit layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology;
the topology generation unit is used for converting equipment identifiers in the transformer substation floor plan into corresponding positions of the initial topology based on the position corresponding relation between the transformer substation floor plan and the cable trench plan;
and the device connection unit is used for selecting matched cable ditches based on the connection requirements and the device positions between the devices and generating connection lines between the devices on the matched cable ditches.
Optionally, as an embodiment of the present invention, the method for setting the margin coefficient includes:
collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths;
and performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length.
Optionally, as an embodiment of the present invention, statistics is performed on cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies, so as to obtain a prediction result, including:
construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficient function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
Fig. 3 is a schematic structural diagram of a terminal 300 according to an embodiment of the present invention, where the terminal 300 may be used to execute the substation cable prediction method according to the embodiment of the present invention.
The terminal 300 may include: processor 310, memory 320, and communication module 330. The components may communicate via one or more buses, and it will be appreciated by those skilled in the art that the configuration of the server as shown in the drawings is not limiting of the invention, as it may be a bus-like structure, a star-like structure, or include more or fewer components than shown, or may be a combination of certain components or a different arrangement of components.
The memory 320 may be used to store instructions for execution by the processor 310, and the memory 320 may be implemented by any type of volatile or non-volatile memory terminal or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The execution of the instructions in memory 320, when executed by processor 310, enables terminal 300 to perform some or all of the steps in the method embodiments described below.
The processor 310 is a control center of the storage terminal, connects various parts of the entire electronic terminal using various interfaces and connection lines, and performs various functions of the electronic terminal and/or processes data by running or executing software programs and/or modules stored in the memory 320, and invoking data stored in the memory. The processor may be comprised of an integrated circuit (Integrated Circuit, simply referred to as an IC), for example, a single packaged IC, or may be comprised of a plurality of packaged ICs connected to the same function or different functions. For example, the processor 310 may include only a central processing unit (Central Processing Unit, simply CPU). In the embodiment of the invention, the CPU can be a single operation core or can comprise multiple operation cores.
And a communication module 330, configured to establish a communication channel, so that the storage terminal can communicate with other terminals. Receiving user data sent by other terminals or sending the user data to other terminals.
The present invention also provides a computer storage medium in which a program may be stored, which program may include some or all of the steps in the embodiments provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a random-access memory (random access memory, RAM), or the like.
Therefore, the invention realizes the estimation of the cable length between the devices by constructing the transformer substation topology, performs cable specification matching on the transformer substation topology, performs cable statistics based on the transformer substation topology, and considers the problem that the actual cable is longer than the theoretical distance during statistics, thereby adding margin coefficients and further obtaining accurate cable prediction results. The invention can realize automatic prediction of the cable and improve the accuracy of cable prediction, and the technical effects achieved by the embodiment can be seen from the description above, and the description is omitted here.
It will be apparent to those skilled in the art that the techniques of embodiments of the present invention may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium such as a U-disc, a mobile hard disc, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, etc. various media capable of storing program codes, including several instructions for causing a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, etc.) to execute all or part of the steps of the method described in the embodiments of the present invention.
The same or similar parts between the various embodiments in this specification are referred to each other. In particular, for the terminal embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference should be made to the description in the method embodiment for relevant points.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems and methods may be implemented in other ways. For example, the system embodiments described above are merely illustrative, e.g., the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with respect to each other may be through some interface, indirect coupling or communication connection of systems or modules, electrical, mechanical, or other form.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A substation cable prediction method, comprising:
acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
the cable specification corresponding to the equipment type is established in advance, and the cable specification is generated for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
counting cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topology to obtain a prediction result;
the method comprises the steps of obtaining a transformer substation floor plan and a cable trench layout, generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment, and comprises the following steps:
adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram;
redrawing lines on the cable trench positions in the cable trench layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology;
based on the position corresponding relation between the substation floor plan and the cable trench layout, converting the equipment identifier in the substation floor plan to the corresponding position of the initial topology;
selecting matched cable ditches based on connection requirements and device positions between devices, and generating connection lines between the devices on the matched cable ditches;
the setting method of the margin coefficient comprises the following steps:
collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths;
performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length;
based on preset margin coefficients and substation topology, cable specification types and cable lengths corresponding to various cable specifications are counted, and a prediction result is obtained, wherein the method comprises the following steps:
construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficient function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
2. A substation cable prediction system, comprising:
the topology construction module is used for acquiring a transformer substation floor plan and a cable trench layout, and generating a transformer substation topology based on the transformer substation floor plan and the cable trench layout, wherein the transformer substation topology comprises equipment and a cable connection structure between the equipment;
the specification matching module is used for pre-establishing a cable specification corresponding to the equipment type, and generating the cable specification for the cable connection structure between the equipment based on the type of the equipment of the substation topology;
the cable statistics module is used for carrying out statistics on cable specification types and cable lengths corresponding to various cable specifications based on preset margin coefficients and substation topologies to obtain a prediction result;
the topology construction module comprises:
the parameter adjusting unit is used for adjusting the scale of the transformer substation plane layout diagram to be the same as the scale of the cable pit layout diagram;
the line reconstruction unit is used for redrawing lines on the cable pit positions in the cable pit layout drawing by using a drawing tool, and extracting all the lines to obtain an initial topology;
the topology generation unit is used for converting equipment identifiers in the transformer substation floor plan into corresponding positions of the initial topology based on the position corresponding relation between the transformer substation floor plan and the cable trench plan;
the device connection unit is used for selecting matched cable ditches based on the connection requirements and the device positions between the devices and generating connection lines between the devices on the matched cable ditches;
the setting method of the margin coefficient comprises the following steps:
collecting margin data of a large number of cables, wherein the margin data comprise linear distances at two ends of the cables and actual cable lengths;
performing linear fitting on the margin data to obtain a margin coefficient function of the linear distance and the actual cable length;
the cable statistics module comprises:
construction of objective functions
Wherein,indicating the total length of the j-th specification cable, +.>Representing the theoretical length of the ith connecting line with the cable specification of j in the transformer substation topology, +.>Representing the total number of connection lines belonging to the j-th specification in the substation topology; />Is a margin coefficient function;
where k is the scale of the substation topology,the length of the ith connecting wire with the cable specification of j in the transformer substation topology in the topology.
3. A terminal, comprising:
the memory is used for storing a substation cable prediction program;
a processor for implementing the steps of the substation cable prediction method according to claim 1 when executing the substation cable prediction program.
4. A computer readable storage medium storing a computer program, characterized in that the readable storage medium has stored thereon a substation cable prediction program, which when executed by a processor, implements the steps of the substation cable prediction method according to claim 1.
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