CN114065690A - Automatic power distribution network drawing method based on recommendation algorithm - Google Patents
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Abstract
The invention discloses a recommendation algorithm-based automatic power distribution network drawing method, which comprises the steps of obtaining historical power distribution node sets and historical power distribution node information according to a city information model and a geographic information system; then, combining the power distribution specification information to construct a scoring matrix; and obtaining a power distribution node recommendation list according to the input power distribution parameters of the new power distribution nodes, the recommendation algorithm and the scoring matrix. Determining the local layout of the recommended equipment according to a recommended equipment list obtained from the power distribution node recommendation list, the power attribute of the recommended equipment and a recommended line set in combination with a power distribution station setting specification; determining the overall layout of the power distribution nodes according to a power distribution network diagram layout algorithm; and finally, wiring according to a circuit channel wiring algorithm to obtain a power distribution network diagram. The power distribution network diagram can provide decision suggestions for users in the power distribution network diagram drawing work, so that some repetitive work of the users is reduced, and the work efficiency and the work quality of the users are improved.
Description
Technical Field
The invention relates to the technical field of automation, in particular to a power distribution network automatic drawing method based on a recommendation algorithm.
Background
With the rapid development of national economy, the power consumption demand rises year by year, the scale of a power system is continuously enlarged, and a distribution network wiring diagram is more and more complex. At present, most of distribution network diagrams are drawn by hand by means of drawing software. The conventional power distribution network has numerous nodes, a complex structure and various parameters, and cannot achieve satisfactory effect by manually drawing a power grid connection diagram, so that the workload is high, mistakes are easily made, and the efficiency is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a recommendation algorithm-based automatic power distribution network drawing method, which can automatically draw to obtain a power distribution network diagram based on a recommendation algorithm according to the provided parameters of the new power distribution nodes, provide decision suggestions for users, reduce the workload of the users in the early stage of drawing, provide reference suggestions for the users to the layout and wiring of the new power distribution network diagram, and improve the working efficiency and the working quality of the users.
According to the first aspect of the invention, the automatic drawing method of the power distribution network based on the recommendation algorithm comprises the following steps:
acquiring a historical power distribution node set and historical power distribution node information according to a city information model and a geographic information system;
constructing a scoring matrix according to the historical power distribution node set, the historical power distribution node information and the power distribution specification information;
acquiring input power distribution parameters of a new power distribution node;
obtaining a power distribution node recommendation list according to a recommendation algorithm, the grading matrix, the input power distribution parameters, the historical power distribution node set and the historical power distribution node information;
obtaining a recommended equipment list, the power attribute of recommended equipment and a recommended line set according to the power distribution node recommendation list;
determining a local layout of the recommendation equipment according to the recommendation equipment list, the power attribute, the recommendation line set and a power distribution station setting specification;
determining the global layout of the recommended power distribution nodes according to the local layout and the power distribution network diagram layout algorithm;
and carrying out wiring according to the global layout and the circuit channel wiring algorithm to obtain a power distribution network diagram, wherein the power distribution network diagram is used for providing decision suggestions for users.
The automatic power distribution network drawing method based on the recommendation algorithm, provided by the embodiment of the invention, at least has the following beneficial effects: acquiring a historical power distribution node set and historical power distribution node information according to a city information model and a geographic information system; the urban information model and the geographic information system are mature in application, and the historical power distribution node set and the historical power distribution node information can be conveniently and quickly obtained based on the urban information model and the geographic information system. And then, constructing a scoring matrix according to the power distribution node set, the power distribution node historical information and the power distribution specification information. Obtaining a power distribution node recommendation list according to input power distribution parameters of new power distribution nodes, a recommendation algorithm and the scoring matrix, further obtaining a recommendation equipment list, power attributes of recommendation equipment and a recommendation line set, and determining the local layout of the recommendation equipment and the global layout of the recommended power distribution nodes by combining with a power distribution station setting specification; and finally, wiring according to a circuit channel wiring algorithm to obtain a power distribution network diagram.
The distribution network diagram is obtained based on the recommended distribution nodes, the connection condition, the local layout condition and the global layout condition of the recommended new distribution nodes are displayed for a user, and the user can obtain the position information, the power attribute, the distribution condition, the connection line attribute and the like of the recommended new distribution nodes from the distribution network diagram. The power distribution network diagram can provide decision suggestions for users in the early stage of power distribution network diagram drawing, so that the workload of the users in the preparation work in the early stage of power distribution network diagram drawing is reduced, and the working efficiency and the working quality are improved; the actual construction environment of distribution network is complicated changeable, and the parameter that distribution network has is very complicated, and in the distribution network drawing in-process, the user can be to distribution parameter adjustment. At this time, the user can input the adjusted power distribution parameters to obtain a new power distribution network diagram. The updated distribution network diagram provides new reference for users, reduces repeated work required by the users after the distribution parameters are changed, and improves the working efficiency and the working quality of the users. The power distribution network diagram is obtained by combining an automatic drawing technology, layout and wiring are more attractive and concise, and the practicability is strong, reference suggestions can be provided for users during layout and wiring of a new power distribution network diagram, and the workload of the users for modifying layout and wiring in the process of drawing the power distribution network diagram is reduced.
According to some embodiments of the invention, the constructing a scoring matrix according to the historical power distribution node set, the power distribution node historical information, and power distribution specification information comprises:
obtaining a surrounding environment grading level table according to the geographical position information and the power distribution specification information of the historical power distribution nodes;
obtaining a safety distance grading table of the historical power distribution nodes according to the distance between the historical power distribution nodes and the power distribution specification information;
obtaining a safety performance grading table of the historical power distribution node according to the voltage grade, the line and the power distribution specification information;
and obtaining a grading matrix of the historical power distribution nodes according to the ambient environment grading table, the safety distance grading table and the safety performance grading table.
According to some embodiments of the invention, the obtaining a recommended list of distribution nodes according to a recommendation algorithm, the scoring matrix, the input distribution parameters, the historical distribution node sets, and the distribution node historical information includes:
selecting a first historical power distribution node from the historical power distribution node set to obtain first historical power distribution information;
according to the input power distribution parameters and the first historical power distribution information, calculating by adopting a similarity calculation method to obtain a first similarity matrix between the first historical power distribution node and the newly-built power distribution node;
selecting a second historical power distribution node from the historical power distribution node set to obtain second historical power distribution information; the second historical power distribution node is the other nodes except the first historical power distribution node in the historical power distribution node set;
according to the input power distribution parameters and the second historical power distribution information, a second similarity matrix between the second historical power distribution node and the newly-built power distribution node is obtained through calculation by adopting a similarity calculation method;
constructing a similarity matrix between the new power distribution node and the historical power distribution node according to the first similarity matrix and the second similarity matrix;
and obtaining a power distribution node recommendation list from the historical power distribution node set according to the similarity matrix and the scoring matrix and according to the selection standard with high similarity and high average score.
According to some embodiments of the invention, the local layout of the recommendation device is determined according to a recommendation device list, power attributes of the recommendation device, a recommendation line set, and a power distribution station setting specification; the method comprises the following steps:
obtaining an in-house set, an electric house set and a first node set according to the recommended equipment list and the power attribute of the recommended equipment;
obtaining an electric room equipment list according to the in-room set and the electric room set;
establishing an equipment superior-subordinate relation table according to the recommended line set;
and performing indoor layout on the recommended equipment in the same electric room according to the electric room set, the electric room equipment list, the equipment superior-subordinate relation table and the indoor equipment layout rule.
According to some embodiments of the invention, the obtaining an in-house set, an electric house set and a first node set according to the recommended equipment list and the power attribute of the recommended equipment comprises:
traversing the recommendation equipment list to obtain the electric room ID of the recommendation equipment;
classifying the recommendation equipment according to the electric room ID to obtain an in-room set and a first node set, wherein the in-room set comprises the recommendation equipment of which the electric room ID is not empty, and the first node set comprises the recommendation equipment of which the electric room ID is empty.
According to some embodiments of the present invention, the performing indoor layout on recommended devices in the same electrical room according to the electrical room set, the electrical room device list, the device context table, and the indoor device layout rule includes:
acquiring a first electric room from the electric room set;
acquiring a parent device ID and a child device ID of the recommendation device in the first electric room from the electric room device list;
when the ID of the father device is not in the first electric room, determining that the recommendation device is an incoming line device of the first electric room;
when the ID of the sub-equipment is not in the first electric room, determining that the recommendation equipment is the outlet equipment of the first electric room;
connecting the recommendation equipment with the ID of the parent equipment and the ID of the child equipment in the first electric room according to the equipment superior-subordinate relation table;
determining a bus in the first electric room and a bus ID according to the equipment type;
then, according to the electric room equipment list and the recommended line set, determining incoming line equipment and outgoing line equipment corresponding to each bus;
respectively arranging the incoming line equipment and the outgoing line equipment on two sides of a corresponding bus according to an in-house equipment arrangement rule, and adding a connecting line to complete first electric house arrangement;
and traversing the electric room set, and finishing the indoor layout of all the electric room nodes.
According to some embodiments of the invention, the determining a global layout of power distribution nodes according to the local layout and power distribution network graph layout algorithm comprises:
obtaining a power distribution node set according to the local layout result, wherein the power distribution node set comprises a power supply node, a grounding node, an electric room node set and a switch node set;
selecting a first node as an initial node according to the power distribution node set;
traversing all nodes in the power distribution node set to obtain all adjacent nodes of the first node;
obtaining a first-level layout set according to the first node and all adjacent points of the first node;
selecting a second node as an initial node, wherein the second node is the other nodes except the first node in the power distribution node set;
traversing all nodes in the power distribution node set to obtain all adjacent nodes of the second node;
obtaining a second hierarchical layout set according to the second node and all adjacent nodes of the second node;
and merging the first-level layout set and the second-level layout set, and deleting the nodes which repeatedly appear to obtain the overall layout of the power distribution nodes.
According to some embodiments of the present invention, the wiring is performed according to the global layout and the circuit channel wiring algorithm to obtain a power distribution network diagram; the method comprises the following steps:
acquiring a power distribution node set according to the global layout;
selecting power distribution nodes in the power distribution node set by using a rectangular frame;
arranging a channel grid around the rectangular frame, and dividing tracks in the channel grid; the channel grid includes: a vertical channel grid and a horizontal channel grid;
and combining the tracks according to a track distribution principle to complete the connection between the adjacent power distribution nodes, so as to obtain a power distribution network diagram.
In a second aspect, an embodiment of the present invention further provides a server, including: memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program implements the recommendation algorithm based power distribution network autograph method according to any one of the embodiments of the first aspect.
In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer may execute the method for automatically mapping a power distribution network based on a recommendation algorithm according to any one of the embodiments of the first aspect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a power distribution network automatic drawing method based on a recommendation algorithm according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for automatically drawing a power distribution network based on a recommendation algorithm according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for automatically drawing a power distribution network based on a recommendation algorithm according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart of a power distribution network automatic drawing method based on a recommendation algorithm according to another embodiment of the present invention;
fig. 5 is a server according to an embodiment of the present invention.
Reference numerals: server 40, processor 41, memory 42.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, terms such as arrangement, connection and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.
The embodiments of the present invention will be further explained with reference to the drawings.
In the urban information model, the urban information model and the geographic information system are mature in application, and the historical power distribution node set and the historical power distribution node information are conveniently and quickly obtained on the basis of the urban information model and the geographic information system. The city information system consists of a set of related model component packages grouped by human. The related model element package mainly comprises: core packages, topology packages, wire packages, shutdown packages, protection packages, measurement packages, load model packages, power generation packages, and domain packages. Each package in the city information model consists of a set of classes, which are interconnected together through simple association, generalization and aggregation. The core package mainly describes the hierarchical relationship of various devices of the power system and is mainly used for statistics and management of the devices; the topology package describes five types of power grid topological relations of the conductive equipment, the terminals, the connection nodes, the topology nodes and the topology islands. A group of conductive equipment in the topology package forms an interval class in a core package, different conductive equipment belongs to different voltage class classes, and a group of intervals or voltage classes form a substation class.
Referring to fig. 1, fig. 1 is a schematic flow chart diagram of a power distribution network automatic drawing method based on a recommendation algorithm, including the steps of:
and S100, acquiring historical power distribution node sets and historical power distribution node information according to the city information model and the geographic information system.
The power distribution history node set comprises: a switch node set, a historical device node, a power house node set, a connection node set, and the like. The historical information of the power distribution nodes comprises: geographic location information, voltage levels, power attributes of historical devices, a historical device list and a historical line set; the power attributes include: node ID, equipment type, equipment name and route of the equipment; the history line set includes: a connection line ID, a parent device ID, and a child device ID.
Therefore, it can be understood that the power grid model and the information that can be obtained from the city information model and the geographic information system are not limited to the information mentioned in one embodiment of the present invention, and more historical information can be obtained according to actual needs to learn the historical power distribution nodes.
And step S110, constructing a grading matrix according to the historical power distribution node set, the historical power distribution node information and the power distribution specification information.
Specifically, a surrounding environment grading level table is obtained according to the geographical position information and the power distribution specification information of the historical power distribution nodes. In the power distribution specification information, the site selection of a power distribution station should be considered: convenient wire inlet and outlet, approach to the power supply side, convenient transportation and other conditions; the device is not suitable for being arranged at places with severe vibration, dust, water mist or corrosive gas, and is not suitable for being arranged at the downwind side of a pollution source when the device cannot be far away; should not be located directly below a toilet, bathroom, kitchen or other location where water is often accumulated, etc. Therefore, the surrounding environment of the historical power distribution nodes is graded to obtain a grading grade table of the surrounding environment according to the environment requirement of site selection, and the grading range is 0 to 10 points. The closer the ambient is to the distribution specification standard, the higher the score and vice versa.
Specifically, a safety distance rating table of historical power distribution nodes is obtained according to the distance between the historical power distribution nodes and the power distribution specification information. At present, China has certain requirements on the distance between equipment and a building. For example, a common 10 KV-35 KV transformer substation requires that the distance between the front surface and the residential house is more than 12 meters, and the distance between the side surface and the residential house is more than 8 meters; the construction of a transformer substation with the voltage of more than 35KV requires that the distance between the front surface and the residential house is more than 15 meters, and the distance between the side surface and the residential house is more than 12 meters; the distance between the box-type transformer substation and the residential house is more than 5 meters. Due to the requirements of economy and power distribution efficiency, the distance between power distribution nodes is not too large, and a loss distance threshold value is set. And scoring the safe distance according to the distance between each single historical power distribution node and the surrounding power distribution nodes to obtain a safe distance scoring table, wherein the score range is 0-10 points. The closer the safe distance is to the distribution specification standard, the higher the score, and vice versa.
Specifically, a safety performance rating table of the historical power distribution nodes is obtained according to the voltage level, the line to which the voltage level belongs and the power distribution specification information. According to the distribution specification information, the transformer substation has certain voltage capacity, and the distribution lines connected with the transformer substation have certain current limiting range. Such as: the low-voltage distribution line is provided with short-circuit protection, overload protection and ground fault protection according to different fault types and specific engineering requirements, and is used for cutting off a power supply or sending an alarm signal. And grading the safety performance of the power distribution connecting line of the power distribution node to obtain a safety performance grading table, wherein the value range is 0-10 points. The closer the safety performance is to the distribution specification standard, the higher the score, and vice versa.
And obtaining a grading matrix of the historical power distribution nodes according to the ambient environment grading table, the safety distance grading table and the safety performance grading table. The scoring matrix comprises scoring information of all historical power distribution nodes. And obtaining the scoring condition of the single historical distribution node based on the single aspect of the three scoring tables from the scoring matrix, and obtaining the average score of the scoring condition of the single historical distribution node based on the three scoring tables. And the scoring matrix is the basis for selecting and recommending the new power distribution nodes by adopting a recommendation algorithm according to the new power distribution parameters. The grading matrix combines the power distribution specification information with historical power distribution nodes, and can provide reference information for the design of new power distribution nodes.
It can be understood that the distribution network has numerous nodes and a complex structure, and the distribution specification of the distribution network has more standards. The user can obtain different scoring lists according to different power distribution specifications, and further enriches the content of the scoring matrix. Therefore, the scoring matrix and the scoring table for constructing the scoring matrix are not particularly limited in the embodiments of the present invention.
And step S120, acquiring the input power distribution parameters of the new power distribution nodes.
Specifically, the input power distribution parameters of the new power distribution node include: the voltage class of the substation, the floor space of the distribution room, the power of the generator, the current limiting range, etc.
It should be noted that the actual construction environment of the power distribution network is complex and variable, and the parameters of the power distribution network are very complex, and in the early preparation and drawing process of drawing the power distribution network diagram, a user may adjust the power distribution parameters. It should be understood that the power distribution parameters that can be input by the user are not limited to the power distribution parameters mentioned in one embodiment of the present invention, but may also be other power distribution parameters, such as: operating current range, transfer current range, transformer voltage capacity, and the like. The user can adjust the type, the number and the data of the input power distribution parameters according to the actual conditions. The embodiment of the invention does not make specific limitation on the input power distribution parameters as long as the input power distribution parameters can meet the design requirements of the power distribution network of users.
And step S130, obtaining a power distribution node recommendation list according to the recommendation algorithm, the scoring matrix, the input power distribution parameters, the historical power distribution node set and the historical power distribution node information.
According to the input power distribution parameters, historical power distribution node information is learned, a power distribution node recommendation list is obtained by combining a scoring matrix and a recommendation algorithm, repeated work of users is reduced, and the users can quickly and conveniently obtain recommended power distribution nodes matched with the input power distribution parameters without searching and browsing power distribution specification information and the historical power distribution node information for multiple times.
The collaborative filtering recommendation algorithm is further subdivided into a plurality of recommendation algorithms, and one of the recommendation algorithms based on memory is adopted in the embodiment of the invention. The memory-based recommendation algorithm can be summarized in two steps: firstly, calculating the similarity between projects by adopting a similarity calculation method, and constructing a similarity matrix; and then estimating the score by adopting a corresponding algorithm, and recommending the user according to the score.
Commonly used recommendation algorithms are: content-based recommendation algorithms, graph structure-based recommendation algorithms, hybrid recommendation algorithms, and the like. It should be noted that, although one of the recommendation algorithms is used to obtain the power distribution node recommendation list in the embodiment of the present invention, the specific recommendation algorithm is not specifically limited, as long as the recommendation algorithm can obtain the power distribution node recommendation list based on the historical power distribution node information and in combination with the input power distribution parameters.
And step S140, obtaining a recommended device list, the power attribute of the recommended device and a recommended line set according to the power distribution node recommended list.
Specifically, the power attributes of the recommendation device include: node ID, equipment type, equipment name and route of the equipment; the set of recommended lines includes: a connection line ID, a parent device ID, and a child device ID.
It should be noted that, in the power distribution network, there are many nodes and a complex structure, and the power attributes of the power distribution equipment are not limited to the attributes mentioned in the embodiments of the present invention, and may also include the operating power, operating current, and the like of the equipment. The information obtained from the recommended line set is not limited to only the connection line ID, the parent device ID, and the child device ID, but also the type of the connection line, the current limit range, and the like may be acquired as needed.
And S150, determining the local layout of the recommendation equipment according to the recommendation equipment list, the power attribute, the recommendation line set and the power distribution station setting specification.
The power distribution network has numerous nodes, a complex structure and various parameters. When a certain node, structure and parameter change, the layout of the distribution network diagram is also affected. The local layout is established, so that when the nodes, the structures and the parameters are changed, the local layout can be modified, and the modification efficiency and the modification accuracy are higher.
And step S160, determining the global layout of the recommended power distribution nodes according to the local layout and the power distribution network diagram layout algorithm.
In the process of mapping, if the power source node is taken as a starting point and the current flow spreads outwards layer by layer, the whole power distribution network can be regarded as being composed of a plurality of radial sub-networks with hierarchical structures. And after the processing of the distribution network diagram layout algorithm, performing global layout on the recommended distribution nodes based on the local layout result to obtain the hierarchical structure of the topological network of the distribution network. The overall layout result is beneficial to subsequent wiring operation, and users can feel intuitive on the overall distribution of the power distribution nodes, so that the overall layout result is beneficial to decision making in the drawing process of the power distribution network diagram.
And S170, wiring according to the global layout and the circuit channel wiring algorithm to obtain a power distribution network diagram, wherein the power distribution network diagram is used for providing decision suggestions for users.
Specifically, step S170 is further described based on a conventional circuit path routing algorithm.
First, a set of power distribution nodes is obtained from a global layout. Selecting power distribution nodes in the power distribution node set by using a rectangular frame; and searching the layout according to the width of the rectangular frame, and performing certain modification according to the specific situation of the hierarchy. And channel grids are arranged on the upper, lower, left and right sides of the rectangular frame, and tracks are divided in the channel grids. Then, the tracks are numbered. The channel grid includes: a vertical channel grid and a horizontal channel grid. And (4) performing track combination on the tracks according to a track distribution principle to complete the connection between adjacent power distribution nodes, so as to obtain a power distribution network diagram. Setting a distribution principle of the tracks in the channel, numbering the connecting ends of the power distribution nodes, wherein the larger the subscript serial number of the connecting end is, the smaller the distributed track number is
And obtaining the hierarchical structure of the topological network of the power distribution network according to the global layout result, and automatically wiring according to a circuit channel wiring algorithm to obtain a power distribution network diagram. The power distribution network diagram is reasonable in layout, standard and attractive in wiring, and beneficial for engineering personnel to obtain reference layout and reference wiring from the power distribution network diagram more conveniently and quickly, and can provide decision suggestions for the power distribution network drawing work of users. The channel wiring algorithm comprises an optimal channel wiring algorithm, an optimal curved trunk channel wiring algorithm and the like. The channel wiring algorithm is not particularly limited as long as the channel wiring algorithm can realize the wiring of the distribution network diagram.
Referring to fig. 2, fig. 2 is a schematic flow chart of an automatic power distribution network drawing method based on a recommendation algorithm according to another embodiment of the present invention, which is a detailed flow chart of step S130, and includes:
step S200, selecting a first historical power distribution node from the historical power distribution node set to obtain first historical power distribution information.
In particular, the first power distribution historical power distribution information is about a first historical power distribution node. The first historical power distribution information includes: geographic location information, voltage levels, power attributes of historical devices, a historical device list and a historical line set; the power attributes include: node ID, equipment house ID, equipment type and equipment name, route, and the like.
Step S210, according to the input power distribution parameters and the first historical power distribution information, a first similarity matrix between the first historical power distribution node and the newly-built power distribution node is obtained through calculation by adopting a similarity calculation method.
Common similarity calculation methods are: pearson correlation, cosine similarity, adjusted cosine similarity, and the like. Specifically, in the embodiment of the present invention, one of the pilson correlation calculation methods is adopted to obtain the first similarity matrix between the first historical power distribution node and the power generation and distribution node, but the adopted similarity calculation method is not specifically limited as long as it can construct the first similarity matrix between the first historical power distribution node and the power generation and distribution node.
In the similarity calculation, the similarity between a single historical power distribution node and a plurality of newly-built power distribution nodes is estimated based on a plurality of parameters. And adding the similarities obtained by the multiple parameters to obtain an arithmetic mean value, so as to obtain a first similarity matrix with the size of 1 multiplied by N between a single historical power distribution node and the multiple newly-built power distribution nodes.
Step S220, selecting a second historical power distribution node from the historical power distribution node set to obtain second historical power distribution information; the second historical power distribution node is a node in the set of historical power distribution nodes other than the first historical power distribution node.
In particular, the second power distribution historical power distribution information is about a second historical power distribution node. The first historical power distribution information includes: geographic location information, voltage levels, power attributes of historical devices, a historical device list and a historical line set; the power attributes include: node ID, equipment house ID, equipment type and equipment name, route, and the like.
And step S230, calculating a second similarity matrix between the second historical power distribution node and the newly-built power distribution node by adopting a similarity calculation method according to the input power distribution parameters and the second historical power distribution information.
Specifically, the similarity calculation method employed in this step should coincide with the similarity calculation method employed in step S210. And estimating the similarity between other single historical power distribution node and a plurality of newly-built power distribution nodes based on a plurality of parameters to obtain M second similarity matrixes with the size of 1 multiplied by N.
And step S240, constructing a similarity matrix between the new power distribution node and the historical power distribution node according to the first similarity matrix and the second similarity matrix.
And obtaining a similarity matrix with the size of (M +1) multiplied by N between the plurality of historical power distribution nodes and the plurality of newly-built power distribution nodes according to the first similarity matrix and the second similarity matrix.
And step S250, obtaining a power distribution node recommendation list from the historical power distribution node set according to the similarity matrix and the score matrix and according to the selection standard with high similarity and high average score.
Setting a similarity threshold, and selecting a plurality of historical power distribution nodes with the similarity greater than the similarity threshold from the similarity matrix; and setting a grading threshold, and selecting historical power distribution nodes with high grading average score based on three aspects from a plurality of historical power distribution nodes with high similarity by combining a grading matrix to obtain a power distribution node recommendation list. The power distribution node recommendation list can recommend a plurality of proper historical power distribution nodes for the user according to a single new power distribution node, provides reliable decision suggestions, reduces the workload of the user, and meets the personalized selection of different users.
Referring to fig. 3, fig. 3 is a schematic flow chart of an automatic power distribution network drawing method based on a recommendation algorithm according to another embodiment of the present invention, which is a detailed flow chart of step S150, and includes:
and step S300, obtaining an in-house set, an electric house set and a first node set according to the recommended equipment list and the power attribute of the recommended equipment.
Specifically, traversing a recommendation device list to obtain a power house ID of the recommendation device; and classifying the recommendation equipment according to the ID of the electric room to obtain an in-room set and a first node set, wherein the in-room set comprises the recommendation equipment with the ID of the electric room not being empty, and the first node set comprises the recommendation equipment with the ID of the electric room being empty. The electrical room set comprises a plurality of indoor sets. And classifying the recommendation devices to facilitate local layout and global layout. The user can know which recommending devices belong to the same electric room, and the workload of learning and searching the recommending devices by the user is reduced.
And S310, obtaining an electric room equipment list according to the in-room set and the electric room set.
The user can obtain information such as which recommending devices exist in each electric room and the power attributes of the recommending devices from the electric room device list. The convenience of customers directly consults, improves user's work efficiency.
And step S320, establishing an equipment superior-subordinate relation table according to the recommended line set.
Specifically, the recommended line set includes a connection line ID, a parent device ID, and a child device ID. It is understood that the connecting line can be divided into a bus line and a sub line. One connection line may have a plurality of current inflow terminals and a plurality of current outflow terminals, and a device connected to the current inflow terminal may be a parent device and a device connected to the current outflow terminal may be a child device. The current inflow end and the current outflow end of one connecting line can be connected with equipment or another connecting line. The recommendation line set can know how many parent devices and child devices of a connecting line exist, so that a device superior-subordinate relation table can be established. After the upper and lower level relation positions of the equipment are positioned, local layout is carried out to lay a foundation, and a user can know the connection relation between recommended equipment, so that the user can select a proper equipment drawing sequence.
And step S330, performing in-house layout on the recommended equipment in the same electrical room according to the electrical room set, the electrical room equipment list, the equipment upper and lower level relation table and the in-house equipment layout rule.
Specifically, a first electric room is obtained from the electric room set, and a parent device ID and a child device ID of a recommendation device in the first electric room are obtained from an electric room device list; judging whether the ID of the father equipment is in the first electric room, and determining that the recommendation equipment is the line-incoming equipment of the first electric room when the ID of the father equipment is not in the first electric room; and judging whether the ID of the sub-equipment is in the first electric room, and determining that the recommendation equipment is the outlet equipment of the first electric room when the ID of the sub-equipment is not in the first electric room.
According to the equipment superior-subordinate relation table, the ID of the parent equipment and the ID of the child equipment are connected with the recommendation equipment in the first electric room;
determining a bus in the first electric room and a bus ID according to the equipment type;
then, determining inlet equipment and outlet equipment corresponding to each bus according to the equipment superior-inferior relation table;
according to the indoor equipment layout rule, the incoming equipment and the outgoing equipment are respectively arranged on two sides of the corresponding bus, and connecting wires are added to complete first electric room layout; the layout rule of the indoor equipment is as follows: the bus bars are aligned in the vertical direction, and the sequence is consistent with the actual situation; the equipment connected with the bus should be respectively arranged at two sides of the corresponding bus, and the connection sequence with the bus is consistent with the actual situation; fixed equipment intervals are arranged between each incoming line equipment room and each outgoing line equipment room, so that the equipment in the house is not overlapped.
And traversing the electric room set, and finishing the indoor layout of all the electric room nodes.
In step S160, a layout algorithm is adopted to perform global layout on the power distribution nodes. It should be noted that there are many distribution network diagram layout algorithms, such as: force-directed algorithms, genetic algorithms, ant colony algorithms, simulated annealing algorithms, depth-first search algorithms, and the like. The embodiment of the invention adopts one of breadth-first search algorithms. Step S160 will be further described with reference to fig. 4. Fig. 4 is a schematic flow chart of an automatic power distribution network drawing method based on a recommendation algorithm according to another embodiment of the present invention, which is a detailed flow chart of step S160, and includes:
and step S400, obtaining a power distribution node set according to the local layout result.
Specifically, the power distribution node set comprises a power supply node, a ground node, an electrical room node set and a switch node set. It can be understood that the structure of the power distribution network is complex, and the nodes included in the power distribution node set are not limited to the nodes mentioned in the embodiment of the present invention, and may further include: port nodes, ring network device nodes, etc.
And step S410, selecting a first node as a starting node according to the power distribution node set.
Step S420, traverse all nodes in the power distribution node set to obtain all adjacent nodes of the first node. (ii) a
Step S430, a first hierarchical layout set is obtained according to the first node and all adjacent nodes of the first node.
The embodiment of the invention adopts a breadth-first search algorithm, which is a layered search process and is the same as a tree sequence traversal algorithm. One node in the graph is selected as a starting node, and then access is carried out layer by layer according to a hierarchical traversal mode. Based on the width limited search algorithm, the first node and all adjacent points of the first node are obtained to obtain a first-level layout set. The algorithm has the advantages of simplicity and convenient implementation
Step S440, selecting a second node as an initial node, where the second node is another node in the power distribution node set except the first node.
And step S450, traversing all nodes in the power distribution node set to obtain all adjacent nodes of the second node.
Step S460, a second hierarchical layout set is obtained according to the second node and all the adjacent nodes of the second node.
Steps S440 to S460 are the same as steps S410 to S430, and a breadth-first search algorithm is also used to obtain the second hierarchical layout set.
And step S470, combining the first-level layout set and the second-level layout set, and deleting the repeated nodes to obtain the overall layout of the power distribution nodes.
And merging the obtained first-level layout set and the second layout set, wherein after merging, a plurality of nodes accessed for many times exist, so that the nodes accessed for many times are required to be deleted. Therefore, a complete and clear hierarchical structure set of the power distribution network diagram can be obtained.
After the global layout is formed, a user can conveniently and visually know the global distribution of the new power distribution nodes. According to the hierarchical layout, a user can conveniently obtain a layout suggestion from the recommended power distribution network diagram, and the user can also carry out hierarchical adjustment on the power distribution network diagram according to the hierarchical structure.
It should be noted that, the embodiment of the present invention does not specifically limit the distribution network layout algorithm, and a user may select or improve the layout algorithm according to design requirements, as long as the algorithm can complete global layout based on a local layout result.
Referring to fig. 5, a server 40 according to an embodiment of the second aspect of the present invention is provided. The server 40 includes but is not limited to: a memory 42 for storing programs; a processor 41 for executing the program stored in the memory 42. The processor 41 and the memory 42 may be connected by a bus or other means.
The memory 42, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. The processor 41 implements the recommendation algorithm based method for automatically mapping a power distribution network by running a non-transitory software program and instructions stored in the memory 42.
The memory 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area can store and execute the automatic drawing method of the power distribution network based on the recommendation algorithm. Further, the memory 42 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 42 optionally includes memory located remotely from the processor 41, and these remote memories may be connected to the processor 41 via a network.
The non-transitory software programs and instructions required to implement the recommendation algorithm based power distribution network autographing method described above are stored in the memory 42 and, when executed by the one or more processors 41, perform the recommendation algorithm based power distribution network autographing method described above, e.g., performing the method steps S100 to S170 described in fig. 1, the method steps S200 to S250 described in fig. 2, the method steps S300 to S330 described in fig. 3, and the method steps S400 to S470 described in fig. 4.
Additionally, an embodiment of the present invention also provides a computer-readable storage medium having stored thereon computer-executable instructions for execution by one or more control processors. The one or more control processors perform the recommendation algorithm based power distribution network autographing method in the above method embodiments, for example, perform the above described method steps S100 to S170 described in fig. 1, the method steps S200 to S250 described in fig. 2, the method steps S300 to S330 described in fig. 3, and the method steps S400 to S470 described in fig. 4.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, CD-ROM, or any other medium which can be used to store the desired information and which can be accessed by the computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A power distribution network automatic drawing method based on a recommendation algorithm is characterized by comprising the following steps:
acquiring a historical power distribution node set and historical power distribution node information according to a city information model and a geographic information system;
constructing a scoring matrix according to the historical power distribution node set, the historical power distribution node information and the power distribution specification information;
acquiring input power distribution parameters of a new power distribution node;
obtaining a power distribution node recommendation list according to a recommendation algorithm, the grading matrix, the input power distribution parameters, the historical power distribution node set and the historical power distribution node information;
obtaining a recommended equipment list, the power attribute of recommended equipment and a recommended line set according to the power distribution node recommendation list;
determining a local layout of the recommendation equipment according to the recommendation equipment list, the power attribute, the recommendation line set and a power distribution station setting specification;
determining the global layout of the recommended power distribution nodes according to the local layout and the power distribution network diagram layout algorithm;
and carrying out wiring according to the global layout and the circuit channel wiring algorithm to obtain a power distribution network diagram, wherein the power distribution network diagram is used for providing decision suggestions for users.
2. The recommendation algorithm based automatic power distribution network mapping method according to claim 1, wherein the constructing a scoring matrix according to the historical power distribution node set, the historical power distribution node information and the power distribution specification information comprises:
obtaining a surrounding environment grading level table according to the geographical position information and the power distribution specification information of the historical power distribution nodes;
obtaining a safety distance grading table of the historical power distribution nodes according to the distance between the historical power distribution nodes and the power distribution specification information;
obtaining a safety performance grading table of the historical power distribution node according to the voltage grade, the line and the power distribution specification information;
and obtaining a grading matrix of the historical power distribution nodes according to the ambient environment grading table, the safety distance grading table and the safety performance grading table.
3. The recommendation algorithm based automatic power distribution network mapping method according to claim 1, wherein the obtaining of the recommended power distribution node list according to the recommendation algorithm, the scoring matrix, the input power distribution parameters, the historical power distribution node sets and the historical power distribution node information comprises:
selecting a first historical power distribution node from the historical power distribution node set to obtain first historical power distribution information;
according to the input power distribution parameters and the first historical power distribution information, calculating by adopting a similarity calculation method to obtain a first similarity matrix between the first historical power distribution node and the newly-built power distribution node;
selecting a second historical power distribution node from the historical power distribution node set to obtain second historical power distribution information; the second historical power distribution node is the other nodes except the first historical power distribution node in the historical power distribution node set;
according to the input power distribution parameters and the second historical power distribution information, a second similarity matrix between the second historical power distribution node and the newly-built power distribution node is obtained through calculation by adopting a similarity calculation method;
constructing a similarity matrix between the new power distribution node and the historical power distribution node according to the first similarity matrix and the second similarity matrix;
and obtaining a power distribution node recommendation list from the historical power distribution node set according to the similarity matrix and the scoring matrix and according to the selection standard with high similarity and high average score.
4. The recommendation algorithm-based automatic power distribution network drawing method according to claim 1, wherein the local layout of the recommendation equipment is determined according to a recommendation equipment list, power attributes of the recommendation equipment, a recommendation line set and a power distribution station setting specification; the method comprises the following steps:
obtaining an in-house set, an electric house set and a first node set according to the recommended equipment list and the power attribute of the recommended equipment;
obtaining an electric room equipment list according to the in-room set and the electric room set;
establishing an equipment superior-subordinate relation table according to the recommended line set;
and performing indoor layout on the recommended equipment in the same electric room according to the electric room set, the electric room equipment list, the equipment superior-subordinate relation table and the indoor equipment layout rule.
5. The recommendation algorithm based automatic power distribution network drawing method according to claim 4, wherein the obtaining of an in-house set, an electric house set and a first node set according to the recommendation device list and the power attributes of the recommendation devices comprises:
traversing the recommendation equipment list to obtain the electric room ID of the recommendation equipment;
classifying the recommendation equipment according to the electric room ID to obtain an in-room set and a first node set, wherein the in-room set comprises the recommendation equipment of which the electric room ID is not empty, and the first node set comprises the recommendation equipment of which the electric room ID is empty.
6. The recommendation algorithm-based automatic power distribution network drawing method according to claim 4, wherein the performing indoor layout on the recommendation devices in the same electric room according to the electric room set, the electric room device list, the device superior-subordinate relation table and the indoor device layout rules comprises:
acquiring a first electric room from the electric room set;
acquiring a parent device ID and a child device ID of the recommendation device in the first electric room from the electric room device list;
when the ID of the father device is not in the first electric room, determining that the recommendation device is an incoming line device of the first electric room;
when the ID of the sub-equipment is not in the first electric room, determining that the recommendation equipment is the outlet equipment of the first electric room;
connecting the recommended equipment of which the ID of the parent equipment and the ID of the child equipment are both in the first electric room according to the equipment superior-subordinate relation table;
determining a bus in the first electric room and a bus ID according to the equipment type;
then, according to the electric room equipment list and the recommended line set, determining incoming line equipment and outgoing line equipment corresponding to each bus;
respectively arranging the incoming line equipment and the outgoing line equipment on two sides of a corresponding bus according to an in-house equipment arrangement rule, and adding a connecting line to complete first electric house arrangement;
and traversing the electric room set, and finishing the indoor layout of all the electric room nodes.
7. The recommendation algorithm based automatic power distribution network mapping method according to claim 1, wherein the determining a global layout of power distribution nodes according to the local layout and power distribution network diagram layout algorithm comprises:
obtaining a power distribution node set according to the local layout result, wherein the power distribution node set comprises a power supply node, a grounding node, an electric room node set and a switch node set;
selecting a first node as an initial node according to the power distribution node set;
traversing all nodes in the power distribution node set to obtain all adjacent nodes of the first node;
obtaining a first-level layout set according to the first node and all adjacent points of the first node;
selecting a second node as an initial node, wherein the second node is the other nodes except the first node in the power distribution node set;
traversing all nodes in the power distribution node set to obtain all adjacent nodes of the second node;
obtaining a second hierarchical layout set according to the second node and all adjacent nodes of the second node;
and merging the first-level layout set and the second-level layout set, and deleting the nodes which repeatedly appear to obtain the overall layout of the power distribution nodes.
8. The recommendation algorithm-based automatic power distribution network drawing method according to claim 1, wherein the wiring is performed according to the global layout and circuit channel wiring algorithm to obtain a power distribution network diagram; the method comprises the following steps:
acquiring a power distribution node set according to the global layout;
selecting power distribution nodes in the power distribution node set by using a rectangular frame;
arranging a channel grid around the rectangular frame, and dividing tracks in the channel grid; the channel grid includes: a vertical channel grid and a horizontal channel grid;
and combining the tracks according to a track distribution principle to complete the connection between the adjacent power distribution nodes, so as to obtain a power distribution network diagram.
9. A server, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor when executing the computer program implements the recommendation algorithm based power distribution network autograph method according to any of claims 1 to 8.
10. A computer-readable storage medium storing computer-executable instructions, wherein the computer is capable of executing the recommendation algorithm based power distribution network automatic mapping method according to any one of claims 1 to 8.
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| CN114638443B (en) * | 2022-05-19 | 2022-08-23 | 安徽数智建造研究院有限公司 | Construction equipment intelligent type selection and allocation method based on improved genetic algorithm |
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