CN116579116B - Method and system for integrated maintenance of distribution line diagram module - Google Patents
Method and system for integrated maintenance of distribution line diagram module Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
A method and a system for integrated maintenance of distribution line diagram modules comprise the following steps: acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and orderly storing the equipment parameter information in a format of a resource model based on a pre-created resource model; defining associations in the resource model based on equipment maintenance requirements, marketing business requirements, and scheduling business requirements, respectively; extracting the associated information in the stored equipment parameter information based on the associated items, and respectively constructing an equipment side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree; and realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree. The modeling accuracy is ensured by the method, so that personnel at the equipment side, the marketing side and the dispatching side can synchronously and accurately acquire the power grid model information, and the consistency of power grid business is ensured.
Description
Technical Field
The invention relates to the field of power systems, in particular to a method and a system for integrated maintenance of distribution line diagram data.
Background
At present, with the gradual increase of the complexity of a power system and the universality of power grid coverage, power grid resources are more and more difficult to manage and maintain. The coverage area of the power grid resource relates to various different types of power equipment such as power generation, transmission, transformation, distribution, utilization and the like and various new energy equipment, and the data range comprises the contents such as power grid resource graphics, standing accounts, electrical connection modes, geographic position coordinates, real-time states and the like. At present, the data management modes aiming at the power grid resources are also various, the data can be managed by standard models regulated by industries, and the standard models comprise different data management modes such as a resource standard model, an asset model, a topology model and the like. Meanwhile, in consideration of the diversity of data contents, part of data is also stored by means of other types of models or data structures, such as geographic coordinates, measurement data, graphic data and the like.
In general, with the ever-updating nature of historian and grid resource data, large amounts of grid resource data in a grid cannot be stored in an integrated manner in a reasonable, uniform, and very regular manner. These grid resource data are typically stored in a specialized manner in different models, different storage modes, and in multiple platforms or systems that are not in communication with each other.
On the other hand, in the prior art, a large amount of grid resources can be reasonably utilized in different manifestations. The expression of the power grid resources is realized in various different modes such as a geographic diagram, a single line diagram, a system diagram, a platform diagram, a power supply range diagram and the like, so that different application requirements of power grid operation and maintenance, development, scheduling and marketing personnel are realized. However, at present, a large number of complex data models and resource data are difficult to combine in a reasonable way, and a virtual model completely synchronous with a real power grid is obtained through updating at any time. This also results in difficulty for operation and maintenance personnel, scheduling personnel, marketing personnel, etc. to acquire synchronized resource data or synchronized resource models, which results in the overall management of the grid possibly resulting in information lag and management failure due to the non-synchronization of the grid resources.
Further, when attempting to reasonably sort and combine a large amount of power grid resource data, it is difficult for the power grid resource to achieve simple redundancy-free, information error-free and accurate combination due to the complexity of the resource data. For example, a complex connection relationship exists among a large number of devices in the power grid, and only one device of the power grid continuously changes the actual topological connection relationship of the power grid in different connection modes and different operation states at different moments such as normal operation of the power grid and failure of the power grid. Based on these problems, it is more difficult to realize integrated maintenance of the distribution line pattern data.
In the prior art, the model diagram of the distribution line can be obtained by manual drawing or semi-automatic drawing, however, the mode is easy to cause human errors, and the updating is not enough in time. For example, when manually drawing a model diagram, the problem of connection errors of the connection terminals of some devices is liable to occur due to lack of model constraints, whereas in a power grid, when one port is connected incorrectly, the whole network may be greatly affected, and sometimes such errors are difficult to perceive and modify. This also consumes a lot of operation staff effort.
When the same power grid resource has different manifestations, more and more inconsistent problems exist among a plurality of distribution line diagrams with different demands along with the use time, and the graphs and the equipment accounts cannot be synchronized.
Besides, in the prior art, a GIS (Geographic Information System ) graphic model is generally adopted to realize the construction of the model, however, the object range and the information range in the GIS model are far more than the requirement of power grid analysis, which results in extremely slow topology analysis speed, and in addition, when a plurality of thematic maps (such as the single line map, the system map, the area map and the power supply range map) are realized according to different requirements, the update of the thematic maps cannot obtain the guarantee of consistency.
In view of the foregoing, there is a need for a method and system for integrated maintenance of distribution circuit diagram modules.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method and a system for integrated maintenance of a distribution line graph module, which are used for orderly storing equipment parameter information by creating a resource model and realizing different hierarchical tree construction and automatic modeling of the distribution line graph based on different requirements such as equipment maintenance requirements, marketing service requirements, scheduling service requirements and the like.
The invention adopts the following technical scheme.
The invention relates to a method for integrated maintenance of distribution line diagram data, which comprises the following steps: acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and orderly storing the equipment parameter information in a format of a resource model based on a pre-created resource model; defining associations in the resource model based on equipment maintenance requirements, marketing business requirements, and scheduling business requirements, respectively; extracting the associated information in the stored equipment parameter information based on the associated items, and respectively constructing an equipment side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree; and realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
The step of acquiring the equipment parameter information of the power distribution equipment through the standing book creation and the standing book maintenance process of the power distribution equipment further comprises the following steps:
acquiring and updating technical parameters, operation states, service histories and topology information of the power distribution equipment from a power grid resource service platform; and the geographical position of the power distribution equipment is obtained through the scanning equipment physical ID, and the technical parameters of the power distribution equipment are updated to the power grid resource service platform.
Preferably, the pre-created resource model further includes:
respectively constructing a plurality of resource storage spaces for equipment containers, power distribution equipment, conductive equipment, connection ports, substations, voltage levels and intervals; and establishing an association membership between the plurality of resource storage spaces.
Preferably, the association membership between the plurality of resource storage spaces is:
the substation, voltage class, interval are sub-classes of the equipment container, and the substation contains a plurality of the voltage classes, the voltage class contains a plurality of the intervals; the power distribution equipment is characterized in that a plurality of power distribution equipment is further contained under the equipment container, the conductive equipment is a subclass of the power distribution equipment, and the connection port belongs to the conductive equipment.
Preferably, the storing the device parameter information in the resource model in order further includes:
extracting equipment names, equipment types and connection port information from technical parameters of the power distribution equipment, and respectively filling the equipment names, the equipment types and the connection port information into the power distribution equipment, the conductive equipment, the substations, the voltage levels and the intervals of the plurality of resource storage spaces based on analysis;
and acquiring a connection mode between the power distribution equipment based on the operation state and the topology information, extracting connection information of ports from the connection mode, and storing the connection information into the connection ports of the plurality of resource storage spaces.
Preferably, the equipment maintenance requirement comprises extracting membership among a transformer substation, a feeder line, a main line, a branch line and distribution equipment and connection relation among the distribution equipment; the marketing business requirement comprises the steps of extracting membership among a transformer, a low-voltage circuit and an access point; the scheduling of service demands includes extracting membership between transformer stations, transformers, voltage classes.
Preferably, the method further extracts the device parameter information from the resource model based on the association to generate a node name of a hierarchical tree; and implementing hierarchical construction of a hierarchical tree based on associations between the device parameter information stored in the plurality of resource storage spaces in the resource model; and, the defining the association term in the resource model further includes: the related items of the equipment maintenance requirements are equipment containers, power distribution equipment, conductive equipment and connection ports; the related items of the marketing business demands are power distribution equipment, voltage class and connection ports; the related items of the dispatching service demands are equipment containers, substations, voltage levels and intervals.
Preferably, the hierarchical construction of the hierarchical tree further includes:
addressing a tie switch of any other distribution line or a distribution line at the other power supply end from the outgoing line of the transformer equipment, finishing addressing after finding a bus of a transformer substation, a normally open tie switch, a parallel network of a distributed power supply and an energy storage device in the addressing process, and realizing the identification of a feeder after traversing the distribution network; shielding the feeder line, starting from a 10kV outgoing line of a transformer substation or a switching station, addressing to terminal equipment through a main incoming line and a main outgoing line of a ring main unit, and traversing the power distribution network to realize the identification of a main line; and shielding the main line, addressing terminal equipment from the separation intervals of the towers, the ring main units, the switch cabinets and the cable branch boxes, identifying the line as the main line if the number of the towers in the same line is less than 5, identifying the line as the branch line if the number of the towers in the same line is less than 5, and identifying the branch line after traversing the power distribution network.
Preferably, the automatic modeling of the distribution line graph according to the equipment-side hierarchical tree further includes:
extracting node names related to a line from the hierarchical tree, constructing a line topology structure of the power distribution network according to the sequence of a transformer, a feeder line, a main line and a branch line, and generating a tree structure; extracting node names related to equipment from the hierarchical tree, and sequentially adding the equipment into the tree structure based on a connection mode between the equipment and the line; calling the equipment graph and the circuit graph from a template library to realize automatic mapping of the distribution circuit graph; and realizing geographical map distribution of the distribution line map according to the geographical position of the distribution equipment.
The second aspect of the invention relates to a system for integrated maintenance of distribution line diagram data by using the method of the first aspect of the invention, wherein the system comprises a storage module, an association module, a construction module and a mapping module; the storage module is used for acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and orderly storing the equipment parameter information in a format of a resource model based on a pre-created resource model; the association module is used for defining association items in the resource model based on equipment maintenance requirements, marketing service requirements and scheduling service requirements respectively; the construction module is used for extracting the associated information in the stored equipment parameter information based on the associated items and respectively constructing an equipment side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree; and the mapping module is used for realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
Compared with the prior art, the method and the system for integrated maintenance of the distribution line graph data have the advantages that the equipment parameter information is stored orderly by creating the resource model, and different hierarchical tree construction and distribution line graph automatic modeling are realized based on different requirements such as equipment maintenance requirements, marketing service requirements and scheduling service requirements. The method is effective and reliable, the parameter information of various power distribution equipment in the power distribution network is integrated and stored uniformly, reasonably and regularly, and the data extraction and association are realized by constructing the hierarchical tree, so that the automatic modeling process of the power distribution circuit diagram is simplified, the modeling accuracy is ensured, and personnel at the equipment side, the marketing side and the scheduling side can synchronously and accurately acquire the power grid model information, and the consistency of power grid business is ensured.
The beneficial effects of the invention also include:
1. according to the method, the effective association between the power grid topology information and the power grid resource model is realized in a hierarchical tree mode, and a data organization mode is found from an actual power distribution network, so that effective modeling of a power distribution circuit diagram is ensured.
2. On the basis of uniform resource data, the method extracts a plurality of different model trees for respectively constructing different distribution line diagrams, thereby ensuring that operation and maintenance personnel, scheduling personnel, marketing personnel and the like can acquire synchronous resource data and synchronous resource models, and ensuring timeliness and accuracy of overall management and control of a power grid.
3. The invention integrates various modes such as a network resource service platform, a scanning device physical ID and the like, ensures accurate and timely updating of the ledger information on the whole processes of the power equipment such as the input use, code scanning acceptance, ledger establishment, scheduling audit, equipment commissioning and the like, ensures the application of different demand sides by establishing comprehensive equipment parameter information, and provides a data basis for the integrated maintenance of distribution line graph module data.
4. The invention realizes the full-automatic mapping process of the distribution line graph through the connection of the hierarchical tree and the automatic modeling mapping technology, overcomes the defect of manual mapping, ensures the automatic detection of model errors and the automatic constraint of wrong wiring, saves the operation and maintenance cost and improves the working efficiency.
5. The invention adopts the nodes of the hierarchical tree as the basis of the composition, replaces the traditional GIS imaging mode, ensures the imaging topology analysis speed to be high, and ensures the updating consistency of a plurality of images.
Drawings
FIG. 1 is a schematic diagram of the steps of a method for integrated maintenance of data in a distribution line graph according to the present invention;
FIG. 2 is a schematic diagram of a method for integrated maintenance of data in a distribution line diagram according to the present invention, in which a device ledger is obtained and updated from a power grid resource service platform;
FIG. 3 is a schematic diagram of a device ledger obtained by scanning a device physical ID in a method for integrated maintenance of distribution line diagram data;
FIG. 4 is a schematic diagram of a resource model in a method for integrated maintenance of data in a distribution line graph according to the present invention;
FIG. 5 is a schematic diagram of electrical hierarchy constraints of a device in a method for integrated maintenance of data in a distribution line graph according to the present invention;
FIG. 6 is a schematic diagram of a connection constraint of a device in a method for integrated maintenance of data in a distribution line diagram according to the present invention;
FIG. 7 is a diagram of an actual distribution network in an embodiment of a method for integrated maintenance of data in a distribution network diagram according to the present invention;
FIG. 8 is a schematic diagram of a circuit topology portion of a hierarchical tree generated in an embodiment of a method for integrated maintenance of data in a distribution circuit diagram according to the present invention;
FIG. 9 is a schematic diagram of a portion of a line device in a hierarchical tree generated in an embodiment of a method for integrated maintenance of data in a distribution line graph in accordance with the present invention;
FIG. 10 is a schematic diagram of a device-side hierarchical tree generated simultaneously in a method for integrated maintenance of distribution line graph data according to the present invention;
FIG. 11 is a schematic diagram of a marketing-side hierarchical tree generated simultaneously in a method for integrated maintenance of distribution line graph modules in accordance with the present invention;
FIG. 12 is a schematic diagram of a scheduling side hierarchical tree generated simultaneously in a method for integrated maintenance of distribution line graph data according to the present invention;
FIG. 13 is a schematic diagram of a method for integrated maintenance of data in a distribution line graph according to an embodiment of the present invention;
FIG. 14 is a schematic diagram illustrating the addition of devices to the tree structure according to a hierarchical tree in an embodiment of a method for integrated maintenance of distribution line graph modules according to the present invention;
FIG. 15 is a schematic diagram illustrating an implementation of automatic mapping of distribution line graphs according to a hierarchical tree in an embodiment of a method for integrated maintenance of distribution line graph data according to the present invention;
FIG. 16 is a schematic diagram of a geographical map layout in an embodiment of a method for integrated maintenance of data in a distribution line map according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments of the invention are only some, but not all, embodiments of the invention. All other embodiments of the invention not described herein, which are obtained from the embodiments described herein, should be within the scope of the invention by those of ordinary skill in the art without undue effort based on the spirit of the present invention.
Fig. 1 is a schematic diagram of steps of a method for integrated maintenance of data in a distribution line diagram according to the present invention. As shown in fig. 1, the first aspect of the present invention relates to a method for integrated maintenance of distribution line diagram modules, and the steps of the method are step 1 to step 4.
Step 1, equipment parameter information of the power distribution equipment is obtained through a standing book creation and standing book maintenance process of the power distribution equipment, and the equipment parameter information is stored in an orderly mode in a resource model format based on a pre-created resource model.
Specifically, in order to construct a distribution pattern model, various device data required for the distribution pattern needs to be collected first. It is conceivable that data such as the name, parameters, model number, port connection relation, etc. of the device is required in order to realize the wiring diagram. In addition, in order to implement the geographical map distribution, geographical location information of the device needs to be acquired. The method fully considers the collection and storage of related data in various systems of the existing power grid, and applies the data to the method.
It should be noted that, the power distribution device mentioned in the following description of the present invention is not limited to the power device used for power distribution, but includes various devices, such as transformers, towers, etc., which are characterized and identified in the process of integrating the power distribution circuit diagram and the module, and they are collectively referred to as a power distribution device for convenience of description.
Preferably, the acquiring the device parameter information of the power distribution device through the standing book creation and standing book maintenance process of the power distribution device further includes: acquiring and updating technical parameters, operation states, service histories and topology information of the power distribution equipment from a power grid resource service platform; and the geographical position of the power distribution equipment is obtained through the scanning equipment physical ID, and the technical parameters of the power distribution equipment are updated to the power grid resource service platform.
At present, a power grid resource center, a power grid topology center, a power grid asset center and a graph center are included on a power grid resource service platform. The resource information of the power grid equipment can be obtained through the power grid resource center, for example, the power grid resource center can obtain the conditions of all equipment in the power system from the whole process of engineering stand, material purchase, construction, completion acceptance, power transmission operation and operation maintenance, and track the state of the equipment. After the equipment is subjected to the completion acceptance stage, the asset model is built by the power grid asset center, and related information of the equipment is stored in the mode of the asset model. If a device implements storage by way of an asset, asset data may include multiple perspectives of asset name, asset information, asset type, device asset model, etc. to describe the physical characteristics of the device.
Meanwhile, the power grid topology center focuses on describing the connection topology structure of equipment in the power grid. The topology model can construct the association relation among the equipment connection ports, the connection nodes, the topology nodes and the topology islands, so that the topology connection to the power grid can be obtained through the identification of the equipment connection ports.
The power grid resource center may describe information about the operating position of the device, and the resource may be a single element such as a switch, a device container containing a plurality of independent elements, or an entity such as a sub-control area of an organization, which focuses on expressing information about the position of the electrical and power grid. In this process, a resource model may be built that implements descriptions of the devices, conductive devices, connection ports, and device containers (e.g., substations, bays, etc.) that are organically related.
The graphic center can record the descriptions of various electrical devices, conductive devices, elements in the devices, ports and the like, and can also comprise the conventional drawing modes of different lines and the like for providing the capability of realizing composition according to a model.
Fig. 2 is a schematic diagram of acquiring and updating equipment ledgers from a power grid resource service platform in the method for integrated maintenance of distribution line diagram data. As shown in fig. 2, taking a transformer as an example, during the operation of the transformer, the power grid resource service platform may record important technical parameters of the device, such as parameters of rated capacity, rated voltage, rated current, and the like. In addition, the equipment also has specific name, ID number, description, operation state and other basic contents. The specific position of the device can be confirmed by positioning the tag, and information such as service history of the device, for example, a connection mode of the device before the device is changed, a position applied to a power grid, and the like can be obtained by replacing the tag with the device.
Fig. 3 is a schematic diagram of a device ledger obtained by scanning a device physical ID in the method for integrated maintenance of distribution line diagram data. As shown in fig. 3, the method of the invention not only can obtain the existing equipment ledger through the power grid resource service platform, but also can obtain the basic information of the equipment according to the mode of scanning the equipment physical ID on the site of the equipment. In an embodiment of the invention, the physical ID on the device is scanned, so that basic information, such as a factory number, a factory date, a product code number and other basic information and physical parameters, of the device are obtained.
In an embodiment of the invention, the physical ID of the device can be scanned by an RFID method, or can be obtained by scanning a two-dimensional code. Regardless of the manner of acquisition, the present invention supports a mobile device to collect the physical ID of the device. The mobile device can collect the physical ID and record the actual position thereof as a parameter information of the device, such as the geographic position. The mobile device can establish a connection relationship with the power grid resource service platform, so that the acquired parameter information is synchronized to the platform to update the data content in the platform.
According to the mode, the invention supports the establishment of various different equipment accounts. Over time, the method also supports information update of various devices on site or at a remote end, so that maintenance of the ledger is realized. Based on the above process, the invention obtains various equipment information parameters of the distribution equipment, and takes the parameters as a data basis to realize the integrated maintenance of the distribution line diagram data.
Since there are different functions and capabilities of the centers in the platform, the data content that they store and can invoke is also different. In order to reasonably realize the establishment of the distribution line graph model, the invention can support the reasonable acquisition of the organization of a large amount of data in a mode of constructing a resource model in advance, thereby obtaining a hierarchical tree for graph model construction. In the prior art, the targeted data is usually extracted from the complex data to carry out independent modeling according to the content of one graph, but in the invention, a large amount of complex data is required to be called out, and the complex data is organically and orderly stored and associated in consideration of simultaneously constructing distribution circuit graphs with different requirements.
Fig. 4 is a schematic diagram of a resource model in a method for integrated maintenance of data in a distribution line graph according to the present invention. As shown in fig. 4, specifically, the pre-created resource model further includes: respectively constructing a plurality of resource storage spaces for equipment containers, power distribution equipment, conductive equipment, connection ports, substations, voltage levels and intervals; and establishing an association membership relation among a plurality of resource storage spaces. The association membership between the plurality of resource storage spaces is as follows: the substation, the voltage levels and the intervals are sub-categories of equipment containers, the substation comprises a plurality of voltage levels, and the voltage levels comprise a plurality of intervals; the equipment container still contains a plurality of distribution equipment down, and electrically conductive equipment is distribution equipment's subclass, and the connection port is affiliated to electrically conductive equipment.
It should be noted that, the equipment container in the present invention may include a sub-station, a voltage level, and an interval, where there are corresponding membership between the sub-station, for example, a sub-station may include multiple intervals, and a part of the intervals may belong to one voltage level, a part of the intervals belong to another voltage level, and so on. In addition to this, all devices are included in the device container, some of which may belong to electrically conductive devices, for example primary devices in the power grid. For such devices, the connection mode of the ports can show important information such as the topology connection mode of the power grid.
Preferably, the orderly storing of the device parameter information in the format of the resource model further comprises: extracting equipment name, equipment type and connection port information from technical parameters of power distribution equipment, and respectively filling the equipment name, the equipment type and the connection port information into power distribution equipment, conductive equipment, substations, voltage levels and intervals of a plurality of resource storage spaces based on analysis; and acquiring a connection mode between the power distribution equipment based on the operation state and the topology information, extracting connection information of ports from the connection mode, and storing the connection information into the connection ports of the plurality of resource storage spaces.
It is easy to think that various information such as distribution equipment, conductive equipment, power stations, voltage levels, intervals and the like filled in the information acquisition device can be information originally possessed during equipment information acquisition, and the specific intervals, voltage levels and substations where the equipment is located can be analyzed after the topological connection relation of the equipment is identified.
By constructing such an association, after collecting a plurality of different data through a plurality of different centers and recording the resource model of the device through the database, the method also supports the association of the corresponding stored different types of data in the database, such as which substation a certain conductive device belongs to, which voltage level, which interval corresponds to, how the connection port therein is connected with other devices, and so on. In other words, the application can realize the ordered storage of the equipment parameter information through the resource model.
The application is not limited to the specific storage mode of the content in the database, but can realize the expression and record of the association relation between different data by referring to the resource model. The association relations can be used for constructing the hierarchical tree in the subsequent process.
And 2, defining the association in the resource model based on the equipment maintenance requirement, the marketing business requirement and the scheduling business requirement respectively.
It should be noted that, in the present application, a plurality of distribution line diagrams need to be constructed at the same time, and the implementation manners of these distribution line diagrams are obtained according to the actual demands of power grid staff, so that the distribution line diagrams can intuitively support a plurality of different working contents, such as power grid dispatching, equipment maintenance, power marketing, and the like. Therefore, according to different roles of power grid workers, different actual working contents are displayed, and the form and the requirement of the drawing are different.
Preferably, the equipment maintenance requirements comprise extracting membership among substations, feeder lines, main lines, branch lines and distribution equipment and connection relations among the distribution equipment; the marketing business requirement comprises extracting membership among the transformer, the low-voltage line and the access point; scheduling business requirements includes extracting membership between substations, transformers, voltage classes.
In particular, equipment maintenance requirements often require that the location, connection relationships, and operational status of various equipment be shown in a circuit diagram, the nature of the lines to which they belong, etc., to enable efficient equipment operation, shutdown, maintenance, and monitoring, etc. The marketing business demands mainly concern how the grid-connected terminal users access to the power grid, and how the power grid can better and more effectively provide high-efficiency and low-loss electric energy interaction. This demand is therefore focused on the distribution and specific geographical location of transformers, low voltage lines, load access points, distributed energy access points, energy storage access points, etc. Finally, scheduling business requirements mainly consider how electric energy is scheduled in different voltage classes, different stations and stations, so that supply and demand balance is ensured. For the above reasons, the method of the present invention characterizes the content of the demand as membership between which resources in the aforementioned resource model.
Preferably, the method further extracts device parameter information from the resource model based on the association to generate node names of the hierarchical tree; and implementing hierarchical construction of the hierarchical tree based on associations between device parameter information stored in a plurality of resource storage spaces in the resource model; and defining the association term in the resource model further comprises: the related items of equipment maintenance requirements are equipment containers, power distribution equipment, conductive equipment and connection ports; the association of marketing business demands is distribution equipment, voltage class and connection port; the associations of scheduling traffic demands are device containers, substations, voltage levels, intervals.
It will be appreciated that in the method of the present invention, important associations may be selected from the resource model based on the membership of interest in the demand. Thus, the specific content of the association is different in the different models described above.
In addition, after the specific content of the association item is obtained, the method can use the association item as a node in the hierarchical tree to realize association between equipment and lines, and finally identify hierarchical attribution relations among various different equipment and connection lines among the equipment, thereby realizing establishment of a tree structure.
Specifically, in the process of building the hierarchical tree, the method needs to consider the difference of the grades of various devices in the power grid, some devices may belong to essential important devices in the power grid, and another part of devices have membership to some important devices, so that the importance is relatively poor. Fig. 5 is an electrical hierarchical constraint schematic diagram of a device in a method for integrated maintenance of data in a distribution line diagram according to the present invention. As shown in fig. 5, according to this idea, the present invention classifies different device objects, such as a feeder and devices thereon as primary objects, a main line and a branch line next, followed by a tower, a wire section, on-column devices and station building devices, etc. In this way, the method of the invention supports the construction of different devices or different connection lines to be realized in a certain order and membership, and each item of content in the table of fig. 5 can also be used as different resource modes of a device container, a power distribution device, a conductive device and the like to realize corresponding storage. When the stored data does not meet the logic constraint in fig. 5, it can also be determined that the data is stored with errors or redundancy, and the data is not recorded in the database for realizing the hierarchical tree construction.
Fig. 6 is a schematic diagram of connection constraint of equipment in the method for integrated maintenance of data in a distribution line diagram according to the present invention. As shown in fig. 6, similar to fig. 5, fig. 6 also provides a constraint on whether connections can be made between various resource types. For example, a connection between the cable connection and the cable section can be achieved, whereas no direct connection is possible between the two equipment containers, the tower and the pole tower, in this way unnecessary data content can also be restricted.
By adopting the method, the data content acquired by various different sources can be arranged and filtered in a rule manner, so that a large amount of data content with errors or insufficient accuracy is removed, and the unified construction of different hierarchical trees under different requirements is ensured. The construction process of the hierarchical tree is specifically described below.
And 3, extracting the associated information in the stored device parameter information based on the associated items, and respectively constructing a device side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree.
Fig. 7 is a circuit diagram of an actual distribution network in an embodiment of a method for integrated maintenance of data in a distribution circuit diagram according to the present invention. As shown in fig. 7, the actual distribution network line graph is shown below, and the lower graph may be manually drawn according to the actual grid line situation. And the figure is used to illustrate, as an example, the construction flow of the hierarchical tree in the present invention.
Preferably, the hierarchical construction of the hierarchical tree further includes: addressing a tie switch of another distribution line or a distribution line at the other power supply end from the outgoing line of the transformer equipment, finishing addressing after finding a bus of a transformer substation, a normally open tie switch, a parallel point of a distributed power supply and an energy storage device in the addressing process, and realizing the identification of a feeder after traversing the distribution network; the shielding feeder line starts from a 10kV outgoing line of a transformer substation or a switching station, addresses to terminal equipment through a main incoming line and a main outgoing line of a ring main unit, and realizes the identification of a main line after traversing a power distribution network; and (3) shielding the main line, addressing the terminal equipment from the separation intervals of the towers, the ring main units, the switch cabinets and the cable branch boxes, identifying the circuits as the main line if the number of the towers in the same circuit is less than 5, identifying the circuits as the branch lines if the number of the towers in the same circuit is less than 5, and realizing the identification of the branch lines after traversing the power distribution network.
In order to prevent line connection errors during automated patterning, the present invention relates to the manner and order in which line addressing between multiple devices is performed through connection ports. Specifically, the invention can construct a tree structure for expressing the main topological relation of the line according to the hierarchy of 'transformer substation-feeder line-main line-branch line'. Then, a power grid equipment model is created according to the sequence of the first main branch, the second branch, the first topology and the second equipment. In addition, a master topology of the master/branch lines is created in the order of the first segment topology and then the end topology. The sectionalized topology mainly comprises a breaking device, and comprises a pole sectionalized switch, a ring main unit, a switch cabinet, a cable branch box and a line sectionalized topology between terminal rods. The terminal topology comprises line topology led out from a starting tower or station room to terminal equipment at intervals, and terminal equipment such as a distribution room, a box-type transformer, a column transformer and the like.
When the feeder is created, the transformer substation and the outlet interval can be selected to create the feeder, and the feeder is automatically named according to the outlet interval. When the main line segment topology is created, the segment devices are created in sequence, and the segment topology is automatically created. The sectioning device mainly refers to a breaking device and a tail end pole tower. The device specifically comprises a sectionalizer (a breaker, an isolating switch, a load switch and a drop-out fuse), a ring main unit, a cable branch box, a switch cabinet and a tail end pole tower. The method can automatically define rules and realize naming of equipment and circuits. When creating the branch lines, the sequence of creating the segment topology first and then the end devices is created. The method can create branch lines at feeder nodes, select starting point equipment, station room branch switches or towers, and also create branch lines at segmented topology nodes, wherein the starting point equipment automatically filters equipment covered in the segments.
Fig. 8 is a schematic diagram of a circuit topology portion of a hierarchical tree generated in an embodiment of a method for integrated maintenance of data in a distribution circuit diagram according to the present invention. Fig. 9 is a schematic diagram of a circuit device portion of a hierarchical tree generated in an embodiment of a method for integrated maintenance of data in a distribution circuit diagram according to the present invention. As shown in fig. 8 and 9, the hierarchical tree generated in the above manner includes not only the line topology portion but also the line equipment portion. In the line topology part, the design from the root node to the child node is realized in the modes of a transformer substation, a feeder line, a main line, a branch line and terminal equipment, and meanwhile, the membership among all nodes is reflected in the hierarchical tree.
On the other hand, in the line equipment part, according to the equipment of different lines, the membership between the equipment is recorded according to the membership between the equipment container and the distribution equipment, for example, a certain equipment is located in a certain interval, a certain interval belongs to a certain ring main unit, and the ring main unit belongs to a certain main line.
It should be noted that, because the method adopts the two strong constraints mentioned in fig. 5 and 6, the feeder line and the outgoing line switch of the transformer substation, the main line and the branch line, the line equipment and the line, the equipment in the station and the station house, the equipment on the column and the tower have strict upper and lower hierarchical equipment relationship. The connection relation between the switch and the conducting wire segment, the conducting wire segment and the cable segment, the transformer and the bus and other conducting equipment also has strict topological connection constraint. By the method, a large number of non-strict association definition modes in the prior art can be eliminated, so that synchronous drawing and updating can be completed between different hierarchical trees constructed through the resource model, and the problem of logic errors in a certain hierarchical tree is avoided.
Fig. 10 is a schematic diagram of a device-side hierarchical tree generated simultaneously in a method for integrated maintenance of data in a distribution line graph according to the present invention. Fig. 11 is a schematic diagram of a marketing-side hierarchical tree generated simultaneously in a method for integrated maintenance of distribution line graph modules according to the present invention. Fig. 12 is a schematic diagram of a scheduling side hierarchical tree generated simultaneously in a method for integrated maintenance of distribution line graph data according to the present invention. As shown in fig. 10, 11 and 12, the contents of the hierarchical tree extracted according to different associated items are different.
And according to different hierarchical trees, different distribution line diagrams can be constructed.
And 4, realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
The automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree further comprises: extracting node names related to lines from the hierarchical tree, constructing a line topology structure of the power distribution network according to the sequence of the transformer, the feeder line, the main line and the branch line, and generating a tree structure; extracting node names related to equipment from the hierarchical tree, and sequentially adding the equipment into a tree structure based on a connection mode between the equipment and a line; calling the equipment graph and the circuit graph from the template library to realize automatic graph formation of the distribution circuit graph; the geographical map of the distribution line map is distributed according to the geographical position of the distribution equipment.
Fig. 13 is a schematic diagram of a method for integrated maintenance of data in a distribution line graph according to an embodiment of the present invention. As shown in fig. 13, the method may first create a line topology, automatically built by creating a segmentation device. In the figure, B is a label of a certain transformer substation, and HW is a certain ring main unit. By reading the connection relation between certain two device ports in the device container, the topology structure can be extracted, and the process is realized in the hierarchical tree part. With the hierarchical tree, the nodes of the hierarchical tree can be easily read, and the segment topology between the transformer substation and the ring main unit as shown in fig. 13 is constructed. Fig. 14 is a schematic diagram illustrating addition of devices to the tree structure according to a hierarchical tree in an embodiment of a method for integrated maintenance of data in a distribution line graph according to the present invention. As shown in fig. 14, after the structure of the segmented topology is created, the start point may be constrained while branches and end devices are added to the segmented line. After the construction of the tree structure is completed, the topology structure can be built by sequentially adding the devices.
Fig. 15 is a schematic diagram illustrating an implementation of automatic mapping of a distribution line graph according to a hierarchical tree in an embodiment of a method for integrated maintenance of data in a distribution line graph according to the present invention. As shown in fig. 15, the automation of the distribution line graph is achieved by calling the graphs of the different devices from a template library in the graph center. Therefore, in the process of imaging, the method only adopts the graph in the template library and the strongly constrained hierarchical tree, the traditional GIS composition method is canceled, the imaging efficiency and the imaging accuracy are ensured to a great extent, and the screening process of redundant data in the imaging process is overcome.
FIG. 16 is a schematic diagram of a geographical map layout in an embodiment of a method for integrated maintenance of data in a distribution line map according to the present invention. As shown in fig. 16, the method of the present invention can also load an actual map, and deploy different distribution lines in the actual map in different colors or different forms.
The second aspect of the invention relates to a system for integrated maintenance of distribution line diagram data by using the method in the first aspect of the invention, wherein the system comprises a storage module, an association module, a construction module and a diagram forming module; the storage module is used for acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and based on a pre-created resource model, orderly storing the equipment parameter information in a format of the resource model; the association module is used for defining association items in the resource model based on equipment maintenance requirements, marketing service requirements and scheduling service requirements respectively; the construction module is used for extracting the associated information in the stored device parameter information based on the associated items and respectively constructing a device side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree; and the mapping module is used for realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
It may be understood that, in order to implement each function in the method provided in the foregoing embodiment of the present application, the system includes a corresponding hardware structure and/or software module for executing each function. Those of skill in the art will readily appreciate that the various illustrative algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The embodiment of the application can divide the functional modules of the system according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
The system may be implemented by one or more devices over a network connection. The apparatus includes at least one processor, a bus system, and at least one communication interface. The processor is comprised of a central processing unit, field programmable gate array, application specific integrated circuit, or other hardware. The memory is composed of a read-only memory, a random access memory and the like. The memory may be stand alone and coupled to the processor via a bus. The memory may also be integrated with the processor. The hard disk can be a mechanical disk or a solid state disk, etc. The embodiment of the present invention is not limited thereto. The above embodiments are typically implemented in software, hardware. When implemented using a software program, may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions.
When the computer program instructions are loaded and executed on a computer, the corresponding functions are implemented according to the procedures provided by the embodiments of the present invention. The computer program instructions referred to herein may be assembly instructions, machine instructions, or code written in a programming language implementation, or the like.
Compared with the prior art, the method and the system for integrated maintenance of the distribution line graph data have the advantages that the equipment parameter information is stored orderly by creating the resource model, and different hierarchical tree construction and distribution line graph automatic modeling are realized based on different requirements such as equipment maintenance requirements, marketing service requirements and scheduling service requirements. The method is effective and reliable, the parameter information of various power distribution equipment in the power distribution network is integrated and stored uniformly, reasonably and regularly, and the data extraction and association are realized by constructing the hierarchical tree, so that the automatic modeling process of the power distribution circuit diagram is simplified, the modeling accuracy is ensured, and personnel at the equipment side, the marketing side and the scheduling side can synchronously and accurately acquire the power grid model information, and the consistency of power grid business is ensured.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (9)
1. A method for integrated maintenance of distribution line diagram modules is characterized in that:
the method comprises the following steps:
acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and orderly storing the equipment parameter information in a format of a resource model based on a pre-created resource model;
defining associations in the resource model based on equipment maintenance requirements, marketing business requirements, and scheduling business requirements, respectively;
extracting the associated information in the stored equipment parameter information based on the associated items, and respectively constructing an equipment side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree;
And, the hierarchical construction of the hierarchical tree includes:
addressing a tie switch of other distribution lines or a distribution line at the other power supply end from the outgoing line of the transformer equipment, finishing addressing after finding a bus of a transformer substation, a normally open tie switch, a parallel point of a distributed power supply and an energy storage device in the addressing process, and realizing the identification of a feeder after traversing the distribution network;
the shielding feeder line starts from a 10kV outgoing line of a transformer substation or a switching station, addresses to terminal equipment through a main incoming line and a main outgoing line of a ring main unit, and realizes the identification of a main line after traversing a power distribution network;
shielding the main line, addressing terminal equipment from the separation intervals of towers, ring main units, switch cabinets and cable branch boxes, identifying the line as the main line if the number of towers in the same line is less than 5, identifying the line as a branch line if the number of towers in the same line is less than 5, and identifying the branch line after traversing the power distribution network;
and realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
2. A method of integrated maintenance of distribution diagram data as set forth in claim 1, wherein:
the step of obtaining the equipment parameter information of the power distribution equipment through the standing book creation and the standing book maintenance process of the power distribution equipment further comprises the following steps:
Acquiring and updating technical parameters, operation states, service histories and topology information of the power distribution equipment from a power grid resource service platform;
and the geographical position of the power distribution equipment is obtained through the scanning equipment physical ID, and the technical parameters of the power distribution equipment are updated to the power grid resource service platform.
3. A method of integrated maintenance of distribution diagram data as set forth in claim 2, wherein:
the pre-created resource model further includes:
respectively constructing a plurality of resource storage spaces for equipment containers, power distribution equipment, conductive equipment, connection ports, substations, voltage levels and intervals;
and establishing an association membership between the plurality of resource storage spaces.
4. A method of integrated maintenance of distribution diagram data as set forth in claim 3, wherein:
the association membership between the plurality of resource storage spaces is as follows:
the substation, voltage class, interval are sub-classes of the equipment container, and the substation contains a plurality of the voltage classes, the voltage class contains a plurality of the intervals;
the power distribution equipment is characterized in that a plurality of power distribution equipment is further contained under the equipment container, the conductive equipment is a subclass of the power distribution equipment, and the connection port belongs to the conductive equipment.
5. A method of integrated maintenance of distribution diagram data as set forth in claim 4, wherein:
the enabling the orderly storing of the device parameter information in the format of the resource model further comprises:
extracting equipment names, equipment types and connection port information from technical parameters of the power distribution equipment, and respectively filling the equipment names, the equipment types and the connection port information into the power distribution equipment, the conductive equipment, the substations, the voltage levels and the intervals of the plurality of resource storage spaces based on analysis;
and acquiring a connection mode between the power distribution equipment based on the operation state and the topology information, extracting connection information of ports from the connection mode, and storing the connection information into the connection ports of the plurality of resource storage spaces.
6. A method of integrated maintenance of distribution diagram data as set forth in claim 1, wherein:
the equipment maintenance requirements comprise extracting membership among a transformer substation, a feeder line, a main line, branch lines and distribution equipment and connection relations among the distribution equipment;
the marketing business requirement comprises the steps of extracting membership among a transformer, a low-voltage circuit and an access point;
the scheduling of service demands includes extracting membership between transformer stations, transformers, voltage classes.
7. A method of integrated maintenance of distribution diagram data as set forth in claim 1, wherein:
the method also extracts the device parameter information from the resource model based on the association to generate a node name of a hierarchical tree;
and implementing hierarchical construction of a hierarchical tree based on associations between the device parameter information stored in the plurality of resource storage spaces in the resource model;
and, the defining the association term in the resource model further includes:
the related items of the equipment maintenance requirements are equipment containers, power distribution equipment, conductive equipment and connection ports;
the related items of the marketing business demands are power distribution equipment, voltage class and connection ports;
the related items of the dispatching service demands are equipment containers, substations, voltage levels and intervals.
8. A method of integrated maintenance of distribution diagram data as set forth in claim 7, wherein:
the automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree further comprises:
extracting node names related to lines from the hierarchical tree, constructing a line topology structure of the power distribution network according to the sequence of the transformer, the feeder line, the main line and the branch line, and generating a tree structure;
Extracting node names related to equipment from a hierarchical tree, and sequentially adding the equipment into the tree structure based on a connection mode between the equipment and the line;
calling the equipment graph and the circuit graph from a template library to realize automatic mapping of the distribution circuit graph;
and realizing geographical map distribution of the distribution line map according to the geographical position of the distribution equipment.
9. A system for integrated maintenance of distribution diagram data using the method of any of claims 1-8, characterized by:
the system comprises a storage module, an association module, a construction module and a mapping module; wherein, the liquid crystal display device comprises a liquid crystal display device,
the storage module is used for acquiring equipment parameter information of the power distribution equipment through a standing book creation and standing book maintenance process of the power distribution equipment, and orderly storing the equipment parameter information in a format of a resource model based on a pre-created resource model;
the association module is used for defining association items in the resource model based on equipment maintenance requirements, marketing service requirements and scheduling service requirements respectively;
the construction module is used for extracting the associated information in the stored equipment parameter information based on the associated items and respectively constructing an equipment side hierarchical tree, a marketing side hierarchical tree and a scheduling side hierarchical tree;
And, the hierarchical construction of the hierarchical tree includes:
addressing a tie switch of other distribution lines or a distribution line at the other power supply end from the outgoing line of the transformer equipment, finishing addressing after finding a bus of a transformer substation, a normally open tie switch, a parallel point of a distributed power supply and an energy storage device in the addressing process, and realizing the identification of a feeder after traversing the distribution network;
the shielding feeder line starts from a 10kV outgoing line of a transformer substation or a switching station, addresses to terminal equipment through a main incoming line and a main outgoing line of a ring main unit, and realizes the identification of a main line after traversing a power distribution network;
shielding the main line, addressing terminal equipment from the separation intervals of towers, ring main units, switch cabinets and cable branch boxes, identifying the line as the main line if the number of towers in the same line is less than 5, identifying the line as a branch line if the number of towers in the same line is less than 5, and identifying the branch line after traversing the power distribution network;
the mapping module is used for realizing automatic modeling of the distribution circuit diagram according to the equipment-side hierarchical tree.
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| CN107633083A (en) * | 2017-09-26 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | A kind of model matching method of power equipment CIM and production integration system |
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| CN104616101A (en) * | 2015-01-19 | 2015-05-13 | 国家电网公司 | Integrated power grid resource model and construction and maintenance method |
| CN107633083A (en) * | 2017-09-26 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | A kind of model matching method of power equipment CIM and production integration system |
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