CN117713080A - Graph module data sharing system and method based on power distribution topology model - Google Patents

Graph module data sharing system and method based on power distribution topology model Download PDF

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CN117713080A
CN117713080A CN202311741218.8A CN202311741218A CN117713080A CN 117713080 A CN117713080 A CN 117713080A CN 202311741218 A CN202311741218 A CN 202311741218A CN 117713080 A CN117713080 A CN 117713080A
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data
graph
sharing
model
power distribution
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王顺江
朱天翼
崔嘉
于鹏
郑伟
韩妮
闫振宏
王同
于同伟
楚天丰
金宜放
张镐
李超然
王雪莹
王英明
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State Grid Corp of China SGCC
Shenyang University of Technology
State Grid Liaoning Electric Power Co Ltd
Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
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State Grid Corp of China SGCC
Shenyang University of Technology
State Grid Liaoning Electric Power Co Ltd
Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
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Priority to CN202311741218.8A priority Critical patent/CN117713080A/en
Publication of CN117713080A publication Critical patent/CN117713080A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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    • G06Q50/06—Energy or water supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]

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Abstract

The system comprises a power distribution topology model based graph module data sharing system and a power distribution topology model based graph module data sharing method, wherein an information exchange bus comprises an information exchange middleware and a plurality of adapters, the information exchange middleware is connected with the adapters, and the adapters are connected with different application systems; when the graph model data are interacted in the information exchange bus, establishing a business static arrangement and a message dynamic route based on a theme, wherein the theme comprises a verb and a message name; and the verification module is used for verifying the topological communication rate, the graphic model integrity rate, the graphic model attribute unique rate and the graphic model mismatch probability of the graphic model data, and storing the verified graphic model data into a database after the operations of conversion, splicing and fusion of the graphic model data are performed through the information exchange bus. According to the invention, a map data database is built, unified power distribution network model standards are managed and controlled, so that the unified service platform is provided for supporting and fusing the multi-element heterogeneous data of the power distribution network, and the potential value of the basic information of the power distribution network is fully mined.

Description

Graph module data sharing system and method based on power distribution topology model
Technical Field
The invention belongs to the technical field of power distribution network data processing, and particularly relates to a graph module data sharing system and method based on a power distribution topology model.
Background
In the prior art, because various equipment pattern data of the power distribution network are generated by adopting different manufacturer technologies, obvious differences exist in the representation method, maintenance of pattern data is carried out by different manufacturers, unified management is difficult to achieve, maintenance efficiency is low, universality and suitability are poor, and the problems of large differences in expression modes, low maintenance and application efficiency and the like of different manufacturers and application technology routes of the pattern data of the power distribution network exist.
The prior art is designed only for graph and model integrated maintenance, and the integrated maintenance of PMS2.0 account information, power grid operation information of a power distribution automation system and the like is less, so that graph and model data cannot be shared, data storage of each system cannot be unified, and a unified and standard graph and model interaction criterion is lacking, so that decoupling and transparent exchange cannot be realized among applications.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a graph module data sharing system and method based on a power distribution topology model, which are used for managing and controlling a unified power distribution network model standard by constructing a graph module data base, providing a unified service platform for supporting and fusing the multi-element heterogeneous data of a power distribution network and providing full-service data exchange sharing of the power distribution network and fully mining the potential value of basic information of the power distribution network.
The invention adopts the following technical scheme.
The invention provides a graph module data sharing system based on a power distribution topology model, which comprises the following components:
the system comprises an information exchange bus, a verification module, a database and a data aggregator;
the information exchange bus comprises an information exchange middleware and a plurality of adapters, the information exchange middleware is connected with the adapters, and the adapters are connected with different application systems; when the graph model data are interacted in the information exchange bus, establishing a business static arrangement and a message dynamic route based on a theme, wherein the theme comprises a verb and a message name;
the verification module is used for verifying the topological communication rate, the graphic model integrity rate, the graphic model attribute unique rate and the graphic model mismatch probability of the graphic model data, and storing the verified graphic model data into a database after the operations of conversion, splicing and fusion of the graphic model data are performed through an information exchange bus;
the access node sends a graph module data sharing request to the accessed node through the information exchange bus, and after the accessed node verifies the identity of the access node, the access node establishes a sharing constraint condition and determines the address of the shared graph module data in the database, and sends the sharing constraint condition and the shared graph module data address to a data aggregator to which the accessed node belongs; and when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly sends the sharing constraint condition and the sharing graph data address to the access node, and if the sharing constraint condition and the sharing graph data address are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are sent to a neighboring data aggregator of the access node based on the intelligent contract, and the neighboring data aggregator repeatedly executes the encrypted sharing constraint condition and the encrypted sharing graph data address to finally send the sharing constraint condition and the sharing graph data address to the access node.
The graph module data of the system comprises: main network pattern data, distribution network pattern data, low-voltage equipment pattern data and new energy pattern data; the graph mode data is the data of the combination of the public information model and the scalable vector graph.
When the power distribution network equipment is replaced, the equipment IDs before and after replacement in the pattern data are kept unchanged.
The system also comprises a version management module for managing the version of the pattern data according to the standard pattern data.
The verification of the graph mode data comprises the following steps: topology connectivity rate, graph model integrity rate, graph model attribute unique rate and graph model mismatch probability.
The topology connectivity rate includes:
in the medium voltage condition, taking the ratio of the number of transformers which are mutually communicated with the topology to the total number of transformers as the medium voltage topology communication rate;
under the condition of low voltage, the total number of the low voltage lines and the total number of all the low voltage lines which are mutually communicated in the topological structure is used as the low voltage topological communication rate;
under the condition of forming the ring by the illegal topology, the ratio of the number of loops obtained after the ring is formed by the interconnection of the illegal topology to the total number of routes is taken as the illegal topology ring forming communication rate.
The pattern integrity rate includes:
the complete rate of the station line relationship is the ratio of the number of complete feeder lines of the power grid in the station line relationship to the total number of all feeder lines in the power grid;
the ratio of the number of transformers to the total number of transformers is used as the linear transformation relation integrity rate when the linear transformation relation integrity rate is complete;
the user-to-user relationship integrity rate is used as the ratio of the low-voltage users with complete user-to-user relationship to the total number of the low-voltage users;
the ratio of the number of switch rooms available in the interior map to the total number of switch rooms is taken as the interior map integrity rate.
The graph mode attribute unique rate comprises:
the unique rate of the ID attribute is defined as the unique rate of the ID attribute, which is the ratio of the difference between 1 and the number of devices with repeated ID attributes in the power distribution network to the total number of devices in the power distribution network;
the name attribute unique rate is defined as the ratio of the difference between 1 and the number of device name attribute repetitions in the distribution network to the total number of devices in the distribution network.
The pattern mismatch probability includes:
the graph-presence and non-mode rate takes the ratio of the number of the equipment primitives without corresponding relation to the equipment primitives as the graph-presence and non-mode rate;
the ratio of the number of models of the equipment to the total number of models of the equipment when the corresponding relation is not available is taken as the pattern ratio.
The invention also provides a graph module data sharing method based on the power distribution topology model, which comprises the following steps:
step 1, an access node sends a graph module data sharing request to an accessed node through an information exchange bus, after the accessed node verifies the identity of the access node, a sharing constraint condition is formulated, the address of the shared graph module data in a database is determined, and the sharing constraint condition and the shared graph module data address are sent to a data aggregator to which the accessed node belongs;
and 2, when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly transmits the sharing constraint condition and the sharing graph data address to the access node, and if the access node and the accessed node are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are transmitted to a neighboring data aggregator of the access node based on an intelligent contract, and the neighboring data aggregator repeats the step 2 to finally transmit the sharing constraint condition and the sharing graph data address to the access node.
Compared with the prior art, the invention realizes the graph module data sharing of the power distribution topological model by formulating a standard model library, a standard model field, formulating perfect interaction standards and data correspondence and relating to a stepless variable interaction graph.
The invention provides an overall framework of a graphic module data sharing service system, provides more effective graphic module data application and graphic module sharing functions, and provides more efficient graphic module data service application support for multiple platforms and systems. And establishing a graph model data sharing system information and graph model interaction model, wherein graph model interaction is based on a CIM/SVG combined data interaction format, and realizing information data standardization. And constructing a graph module data sharing model based on the whole network power supply topology, wherein the graph module data sharing model comprises a standard center model and a storage center model. And model splicing, model fusion, and the like of the PMS2.0, the power distribution automation, the power utilization acquisition system and the like are realized.
Drawings
FIG. 1 is a schematic diagram of an information exchange bus in an embodiment of the invention;
FIG. 2 is a flow chart of a synchronous request/response method in an embodiment of the invention;
FIG. 3 is a flow chart of an asynchronous request/reply approach in an embodiment of the invention;
FIG. 4 is a flow chart of information normalization in an embodiment of the present invention;
FIG. 5 is a schematic diagram of the SVG file structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a CIM file structure according to an embodiment of the invention;
FIG. 7 is a flow chart of data interaction, verification, and storage of the graph in an embodiment of the invention;
FIG. 8 is a schematic diagram of a graphical illustration of the modular data sharing system of the present invention;
FIG. 9 is a schematic diagram of the modular data sharing system of the present invention;
FIG. 10 is a schematic diagram of an application of the data sharing system of the module of FIG. 10 in an embodiment of the present invention;
fig. 11 is a flowchart of a graph module data sharing method based on a distribution topology model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, 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 embodiments described herein are merely some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art without inventive faculty, are within the scope of the invention, based on the spirit of the invention.
The invention provides a graph module data sharing system based on a power distribution topology model, which comprises the following components: the system comprises an information exchange bus, a verification module, a database, a data aggregator and a version management module.
The information exchange bus comprises an information exchange middleware and a plurality of adapters, wherein the information exchange middleware is connected with the adapters, and the adapters are connected with different application systems; when the graph mode data are interacted in the information exchange bus, the static arrangement of the business and the dynamic routing of the message are established based on the theme, wherein the theme comprises verbs and message names.
Specifically, ontology O is an explicit formalized specification of the sharing model, satisfying the following relationship:
O＝{C,R,F,A,I} (1)
wherein, C is a concept and is an abstraction of reality things; r is the relationship between concepts; a is axiom satisfied by the relation between concepts; i is a collection of conceptual instances within a domain; f is a special functional relationship expressed as:
F＝C 1 ×C 2 ×…×C n-1 →C n (2)
wherein C is 1 、C 2 、……、C n-1 、C n Represented as variables, respectively.
The information exchange bus is shown in fig. 1. And the information exchange bus is used as a third party intermediary to realize decoupling and transparent exchange between applications. The information exchange bus comprises two parts, namely an information exchange middleware and an adapter, and jointly realizes the functions of business arrangement, message routing, publishing/subscribing, request/response and other functions. Topics are composed of verbs and nouns to identify various business data of interactions between systems; the verbs should adopt a verb list in the IEC 61968 standard, and the nouns are based on a distribution automation information interaction scene and a message subset in a message specification. The distribution automation information interaction should realize static arrangement and dynamic routing based on a theme mechanism. The power distribution automation information exchange bus should support two basic information exchange modes, request/response and publish/subscribe, wherein the request/response modes should include two sub-modes of synchronous request/response and asynchronous request/response. The standard interface server consists of a middleware adapter and an application adapter, and realizes data conversion/analysis, message encapsulation/decapsulation and interface conversion. The standard interface server can be deployed on the bus server side, the application system side or independently according to actual conditions.
The information exchange bus is used for information exchange, and the functions mainly comprise two functional modes of request, response and publish and subscribe. The different application systems are realized through information exchange middleware. In the request and response modes, the two cases, synchronous and asynchronous, are respectively, and information data exchange is performed through the bus. The synchronous request/response mode and the asynchronous request/response mode are shown in fig. 2 and 3, respectively. In the response message, the label is normalized, and reply is adopted. Synchronous call is adopted in the call mode of AsyncReplyFlag. For corelationid, both the reply return of the middleware and the return result of the reply are simultaneously returned. The mechanism of the information exchange middleware simultaneously comprises an optional item of a synchronous mechanism, and the AsyncReplyFlag is set as false for a party needing to request information. While the information exchange middleware also provides an alternative to the asynchronous mechanism. In this mode of operation, the final result information and confirmation information need to be returned first. Meanwhile, in order to meet the above functions, the functions of the information bus should also include unified usability of the switching service interface, and for the response mode of the response adapter, automatic selection is performed according to whether the mode is asynchronous or synchronous, and the synchronous mode and the asynchronous mode are respectively shown in fig. 2 and 3.
Further, the basis of internal data organization, storage, management and maintenance is unified. The version number of the model is regularly and uniformly issued, and the basic definition and interpretation of the model accord with IEC CIM. According to the data requirements of information interaction between each system and the distribution automation system, which are proposed by each data sub-book, the information is standardized according to an IEC CIM modeling method, and the flow is shown in fig. 4.
The universal message structure defined by IEC 61968-1 standard is used as a distribution automation information interaction carrier, and consists of a message header and a message body. The message header contains verbs, nouns and other information applied to and managed by the message, where the verbs should conform to the categories and combinations defined in the IEC 61968-1 standard, the nouns corresponding to the names of the subsets. The message body loads the data of the actual required interactions between the systems, either in accordance with boundaries, structures and constraints defined by the specified subset, or as files in graphics and other special formats. Each subset should uniquely correspond to a class of information interaction topics, and the same subset can be multiplexed among multiple systems. The generation, parsing, application, etc. of standardized data files should be based on the definition of subsets in either the forward or reverse serialization process. The versions of the subset are released periodically, preferably in synchronization with the unified information model version and the application changes of each interactive system. The interaction scene comprises the time sequence, flow direction, dynamic or noun combination, special limitation and the like of message interaction, and the scene is updated according to the condition that the service function configuration of each system adjusts the influence on the information interaction.
The graph module data of the system comprises: main network pattern data, distribution network pattern data, low-voltage equipment pattern data and new energy pattern data; the graph mode data is the data of the common information model CIM and the scalable vector graphics combined with SVG. The graph-model interaction is based on CIM/SVG combined data exchange formats.
As a further preference, in step S1, the graph mode interaction is based on CIM/SVG combined data interaction format. The final data obtained by graph-model interaction is as follows: the final data obtained by graph-model interaction is as follows:
wherein:
where Record is Record, data represents Data, sign is signal, and timestamp is time stamp.
The distribution network thematic map, distribution network equipment attributes and topology (pattern) are derived from the production system. The real-time measurement data is derived from power distribution automation. The equipment objects in the whole model center of the distribution network and the objects in other systems correspond to the objects in the same CIM (Common Information Model, public information model) model. When the power grid equipment is overhauled and replaced, the asset codes are changed, and when the power grid functional position is not changed, the ID transmitted to other systems is unchanged, or the original equipment ID is informed. The graphics and model interact together. The minimum granularity of the interaction data is the line (feeder line)/station, the intermediate file is used as a carrier, the distribution network is in full model center, and the distribution automation systems are respectively responsible for the intermediate file. The model interaction file and the incremental model file only need to realize the referential integrity of the model, and the model containing the referenced line or station is not needed.
The SVG file structure component includes various structures such as a file header (placed at the header position of the file), different forms of the file representation (generally defined and selected with two forms of primitive and style), primitive style references, and layers. SVG is a language form of two-dimensional space with open property based on XML, and is mainly used for describing vector graphics. Currently, geographic information map systems are widely used. For the main area of the SVG file data content, different data are processed according to different categories, and the processed data are placed in different layers, and the SVG file structure is shown in fig. 5.
The CIM model is mainly aimed at various electrical devices in the power grid and a relation model of topological connection between the electrical devices. The data transmission format is also XLM, so that in order to realize standardization of different equipment models in various systems, the CIM model is needed to be used for carrying out unified construction on the logic relations of various models in the system. The data in the geographic information system is exchanged between the data in this format. The CIM file structure is shown in FIG. 6, and the CIM file is described by four types of features characterizing the CIM file. The topological connection structure mode between various devices in the power grid and different devices is a parallel mode, and relevant regulations are carried out on CIM data container labels. The reference attribute is used as an implementation way of logic and hierarchy among elements.
The system comprises: the system comprises a verification module, a database, a version management module and an interface standard management module;
1) Version management module
And establishing a set of standard data model of the graph module data interaction service platform, forming a CIM meta-model file, managing model versions, and taking the model version management as a standard basis for issuing actual equipment models of various systems, wherein the model version management has a model multi-version management function, so that unified maintenance and management of histories and current models are realized.
2) Model verification management
The model verification mainly comprises two layers, including verification of a meta-model RDFS (Resource Description Framework Schema, resource description framework mode), verification of an RDF (Resource Description Framework ) instance, application data verification and the like, wherein the verification of the RDFS is used for verifying whether the RDFS used in the current model is the latest version Schema issued or not, and the verification is mainly realized through version identification. The verification of the RDF instance is used for ensuring the correctness of the model in grammar and semantics, and is the key point of the model verification function.
3) Interface standard management module
The management and release of the standard meta-model are realized, the semantic and grammar verification of the model is responsible, and the normalization of the model center data is ensured; and providing a unified standard interface specification for the service system, and providing a data storage standard, a data verification specification and a data release specification for the model center. The unified standard interface standard, namely the standardized interface standard of language, mode file definition and message body definition, defines the data sharing requirement, and specifies the information types, interaction directions, interaction frequencies, interaction contents and implementation modes of data sharing under different service scenes.
4) Verification module
Specifically, the graphic verification is to verify a graphic file (SVG format), and the verification rules of each part of the content of the graphic file need to be defined, including aspects of file format, file header definition, graphic expression form definition, layer definition, device graphic, graphic topology description, graphic module consistency and the like. And checking whether the graphic file accords with XML format specifications, and whether the definition of each label is correct, wherein the file header definition check items comprise character coding check, canvas width and height check, drawing view coordinate system parameter check and the like.
The model of the graph module data sharing system for collecting and storing comprises a static model of equipment of a main network, a distribution network, low-voltage and new energy equipment, and corresponding dynamic models of real-time data, collection quantity and the like, the actual management units and management modes of the main distribution network, the low-voltage and the new energy equipment are different, the models can be managed and maintained by different systems, corresponding equipment boundaries exist among management layers, different systems are different for different equipment, even the collection quantity of the same equipment is different, therefore, when the distribution network full model is collected to a storage center, the models are needed to be spliced according to the boundaries, the models are fused according to application requirements, and the integrity and consistency of the models are ensured.
The verification module is used for verifying the topological communication rate, the graphic model integrity rate, the graphic model attribute unique rate and the graphic model mismatch probability of the graphic model data, and storing the verified graphic model data into a database after the operations of conversion, splicing and fusion of the graphic model data are performed through an information exchange bus; the figure module data sharing system collects relevant source systems including: the power is transmitted by a PMS2.0, a power distribution automation system, a power utilization acquisition system and a dispatching automation system. And the marketing system pushes the graph module data to the data bus through model service, real-time data service and the like, performs model conversion, model splicing and model fusion through the adapter, and then stores the graph module data in the platform storage center as shown in fig. 7.
In the embodiment, the problem in the data interaction of the graph of the power distribution network is comprehensively analyzed, and the following dimensions are preliminarily determined as check indexes: topology communication rate under different voltages, integrity rate of graph mode relation, user variable integrity rate, attribute unique rate of ID/name, and probability of graph mode mismatch.
In the calculation process of the topology communication rate under different pressures, the conditions of medium voltage (10 kV/20 kV), low voltage (0.4 kV) and illegal topology looping are mainly considered. And when the integral topological structure of the graph model is in mutual communication, determining the number of power supply stations, neglecting the communication state of the switches, tracking according to the working units, and determining the number of distribution transformers of other substations in the working state. Under the medium-pressure condition, after the summation is overlapped item by item, the ratio is calculated according to the summation result, and the calculation formula is shown as follows:
P＝M 1 /N 1 ×100％ (6)
wherein: p represents the topology connectivity probability, M 1 Representing the number of transformers interconnected with the topology, N 1 Representing the total number of transformers.
The calculation formula in the case of low pressure is as follows:
P＝M 2 /N 2 ×100％ (7)
wherein: m is M 2 Representing the number of low-voltage lines in the case of mutual communication in a topology, N 2 Indicating the total number of all low voltage lines.
When illegal topology is looped, the connectivity probability is:
P＝M 3 /N 3 ×100％ (8)
wherein: m is M 3 Indicating the number of loops obtained after the illegal topologies are mutually communicated into loops, N 3 Representing the total number of routes.
For the graph and model check of the power distribution network, another check, analysis and maintenance is to check the integrity rate of each part in the graph and model design. The method mainly comprises the steps of line station, line transformer, household transformer and relation integrity rate of the internal diagram of the switch room. The integrity of the connection relationship between the transformer substation and the feeder line in the power distribution network is mainly reflected by the integrity of the station line relationship, and the calculation formula is as follows:
C＝M 4 /N 4 ×100％ (9)
wherein: c represents the complete probability in the graph model design, M 4 Representing the number of complete feeder lines of a power grid in a station line relation, N 4 Representing the total number of all feeders in the grid.
The linear transformation relation integrity rate is the integrity between a transformer capable of describing distribution and a corresponding feeder. The calculation formula is as follows:
C＝M 5 /N 5 ×100％ (10)
wherein: m is M 5 Indicating the number of transformers when the linear change correlation is complete, N 5 Representing the total number of transformers.
The user-variable relation integrity rate is calculated, and the relation between the user and the transformer is mainly checked. The calculation formula is as follows:
C＝M 6 /N 6 ×100％ (11)
wherein: m is M 6 Low voltage user, N, representing complete user-to-user relationship 6 Representing the total number of low voltage users.
The internal diagram integrity rate of the switch room is mainly described by an internal wiring diagram of the switch room, and the calculation formula of the integrity rate is as follows:
C＝M 7 /N 7 ×100％ (12)
wherein: m is M 7 Representing the number of active switchrooms in the interior map, N 7 Indicating the total number of switching rooms.
In the graph model checking process, the unique rate is also an important analysis dimension. In the calculation process of the attribute unique rate, the method mainly comprises an ID attribute unique rate and a name attribute unique rate.
O＝(1-M 8 )/N 8 ×100％ (13)
Wherein: o represents the unique rate of ID attribute, M 8 Representing the number of devices with duplicate ID properties in a distribution network, N 8 Representing the total number of devices in the distribution network.
The calculation formula of the name attribute unique rate is as follows:
O＝(1-M 9 )/N 9 ×100％ (14)
wherein: m is M 9 Representing the number of device name attribute repetitions in a power distribution network, N 9 Representing the total number of devices.
The other analysis dimension is the probability of incomplete graph mode, wherein the calculation formula of the graph mode-free rate is as follows:
R＝M 10 /N 10 ×100％ (15)
wherein: r represents the probability of incomplete graph modeling, M 10 Representing the number of equipment primitives without corresponding relation, N 10 Representing the device primitives.
The probability calculation formula of the modulo non-graph is as follows:
R＝M 11 /N 11 ×100％ (16)
wherein: m is M 11 Indicating no correspondenceNumber of models of the device at the time of relationship, N 11 Representing the total number of models of the device.
The check indexes are established from the plurality of dimensions, so that more comprehensive information can be effectively obtained from the interactive check of the power distribution network graph data, and the accuracy of the check process is greatly improved.
The access node sends a graph module data sharing request to the accessed node through the information exchange bus, and after the accessed node verifies the identity of the access node, the access node establishes a sharing constraint condition and determines the address of the shared graph module data in the database, and sends the sharing constraint condition and the shared graph module data address to a data aggregator to which the accessed node belongs; and when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly sends the sharing constraint condition and the sharing graph data address to the access node, and if the sharing constraint condition and the sharing graph data address are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are sent to a neighboring data aggregator of the access node based on the intelligent contract, and the neighboring data aggregator repeatedly executes the encrypted sharing constraint condition and the encrypted sharing graph data address to finally send the sharing constraint condition and the sharing graph data address to the access node.
The graphic module data sharing system provided by the embodiment of the invention is shown in fig. 9, and the graphic module data sharing system is visually displayed, so that the sharing and the integration application of graphic and model data can be realized, and the maintenance efficiency can be improved.
In order to conveniently display and edit the thematic map, various thematic map data are converted into CIM and SVG files which accord with the standard IEC 61970/91968, the graphics are previewed by taking SVG as a unit, and the previewable graphics comprise a single line diagram, a low-voltage station area diagram, a contact diagram, a station room diagram and the like. The graphic preview adopts a standard SVG interactive format and adopts an open Google browser kernel to render the graphic. SVG is displayed on the graphics application platform through SVG display technology.
The SVG graphic elements are operated through the platform to edit and modify graphics, including single equipment, batch selection and container selection, and various modes of movement and rotation are performed. Marking colors, fonts, sizes, word sizes, intervals, arrangements and the like. And the custom functions of container combinations, such as large feeder line definition, interval definition, station house definition, etc., are realized. And the functions of the thematic map re-mapping, equipment account maintenance and the like are realized. And displaying the modified graph by using SVG, and storing to generate standard CIM and SVG format data, as shown in figure 8.
The basic data verification is to verify the geographical basic data and display the error data and the error information. The aim is to find errors in the geographical map data, which can lead to map errors. Clicking the "data check" button in the drop-down menu and clicking the "basic data check" button in its drop-down list, the dialog box "basic data check setup tool" pops up.
After the data is successfully loaded, the "check" button is clicked again, and the dialog box is popped up again. The error screening information is used for screening error contents and displaying all error types by default; any row of error information in the click (2) can pop up the areas (4), (5) and (6), wherein (4) is the detailed attribute display of the row selected in the click (2), the right button can pop up the button for 'turning to the geographic map', and the click can be turned to the geographic map and positioned; (5) is the cause of the error; (6) the attached list is the information of other devices related to the error information (note: not all error types have attached list), and the verification of the attached list at present is mainly: topology island verification, ring spacing, line outlet switch maintenance error, excessive non-bus equipment connection, and different GIS coordinates of the same topology; (3) there are "filter" and "error export" functions, respectively, in which "filter" relies on the hooking of (1), listing what the user needs to view, and the "error export" button only exports (2) what is in the "error list".
Fig. 10 is an application schematic diagram of a graph module data sharing system in an embodiment of the present invention, as shown in fig. 10, by establishing graph module data based on a full-network power supply topology model, collected and synchronized source end data (mainly including PMS2.0 and GIS2.0 sources) are converted and adapted to generate a unified standard model, and unified storage is performed. The dispatching automation system, the electricity consumption information acquisition system, the marketing management system and other systems can directly call the unified model data, and when the data needs to be maintained, the maintenance of the maintenance diagram module data sharing system is only needed, and repeated maintenance of the dispatching automation system, the electricity consumption information acquisition system and the like is not needed. The time (in minutes) required for average daily maintenance during one week of actual operation with and without the graph module data sharing system was counted as shown in table 1. As can be seen from the data in the table, the maintenance efficiency is greatly improved by adopting the graph mode sharing system.
Table 1 comparison of maintenance efficiency for two modes
The invention provides an overall framework of a graphic module data sharing service system, provides more effective graphic module data application and graphic module sharing functions, and provides more efficient graphic module data service application support for multiple platforms and systems. And establishing a graph model data sharing system information and graph model interaction model, wherein graph model interaction is based on a CIM/SVG combined data interaction format, and realizing information data standardization. And constructing a graph module data sharing model based on the whole network power supply topology, wherein the graph module data sharing model comprises a standard center model and a storage center model. And model splicing, model fusion, and the like of the PMS2.0, the power distribution automation, the power utilization acquisition system and the like are realized.
The invention also provides a graph module data sharing method based on the power distribution topology model, which comprises the steps of sharing access requests and sharing data,
step 1, an access node sends a graph module data sharing request to an accessed node through an information exchange bus, after the accessed node verifies the identity of the access node, a sharing constraint condition is formulated, the address of the shared graph module data in a database is determined, and the sharing constraint condition and the shared graph module data address are sent to a data aggregator to which the accessed node belongs;
and 2, when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly transmits the sharing constraint condition and the sharing graph data address to the access node, and if the access node and the accessed node are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are transmitted to a neighboring data aggregator of the access node based on an intelligent contract, and the neighboring data aggregator repeats the step 2 to finally transmit the sharing constraint condition and the sharing graph data address to the access node.
A diagram of a diagram module sharing technology architecture based on a distribution topology model is shown in fig. 1. By constructing the graphic module data sharing service platform, more effective graphic module data application and graphic module sharing functions are provided, and more efficient graphic module data service application support is provided for multiple platforms and systems. The problem of inconsistent graph numbers caused by multi-system interaction is solved. The diagram module data sharing platform obtains corresponding data information from a dispatching automation system, an electricity consumption information acquisition system, a marketing management system and a cable network management system, obtains equipment ledgers and diagram module information from a PMS2.0 system, obtains power grid real-time operation parameter information from power distribution automation, and establishes a unified standard model. The data resource storage center of the image module data sharing service platform is constructed, standardized image module data is generated through collection and synchronization of source end data (the main sources are PMS2.0, GIS2.0 and the like) and conversion and adaptation, and unified storage is carried out, so that standard data sources are provided for external release. The standardized data and graphic model information are visually displayed and used for various services such as equipment operation and maintenance control, emergency management and command and the like. The graph module data sharing technology is divided into the following specific steps:
graph mode sharing data access request. Node N m To node N i And sending out a sensing data sharing request Req, wherein the request comprises information such as data access purposes, time, times and the like. Node N i Ping node N m After identity, for node N m Establishing access constraint conditions of constraints, authorizing access, and associating the conditions with a pseudonymous private key corresponding to the accessed data blockSent to the neighbor data aggregator BS j ：
And sending the graph mode shared data. Provided that the data access node N m And the accessed node N i In the coverage area of the same data aggregator, the data aggregator directly sends the data to the data access node N m The method comprises the steps of carrying out a first treatment on the surface of the Otherwise, the node currently executing the intelligent contract sends the encryption result to the access node N m Is provided. The above process is specifically described as follows:
wherein:
and establishing a graph module data sharing service platform based on the power grid GIS platform and the multi-element power grid standard data as a data source end support. And collecting power grid resource data, power grid operation data and the like to form a data warehouse and a data center, taking a standard CIM/SVG/E language model as an interactive structure, establishing a graph display platform based on a power grid standard model thematic graph, and supporting the application of a power distribution network upper-layer service system. And visual drawing management supports visual management of drawing model data and provides standard drawing model external release service. And (3) constructing a graph module data sharing service platform, reasonably carrying out interaction of distribution network data, and ensuring that normal operation of other systems is not influenced. The method supports the expandability of the data model, the expandability of the application service and the expandability of the application function, and meets the expansibility development and integration requirements of various subsequent service functions. The open flexible application service development framework is adopted, flexible configuration of interfaces, functions and processes is supported, and the service application requirements of each level and each professional distribution network are met.
In order to utilize the existing resources as much as possible, the graph module data sharing platform maximally utilizes the existing dispatching automation system, the electricity consumption information acquisition system, the marketing management system, the PMS2.0 and the allocation automation hardware equipment, and in order to realize the functions of the graph module data sharing platform, two servers are required to be configured separately, one server stores information after unified standards, and the other server performs visual display and system upgrading. The server is configured to CPU:32G, memory: 64G, hard disk: 500G. In order to build the graph mode data sharing platform, a corresponding software environment is needed to be provided, the visual management of one-mode multi-graph mode data is realized, and the visual generation, editing and management operations of the standardized graph mode data are supported according to the data after source synchronization. To support an external supply of high quality graphic model data.
The present disclosure may be a system, method, and/or computer program product. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for causing a processor to implement aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.
The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.
Computer program instructions for performing the operations of the present disclosure can be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present disclosure are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information of computer readable program instructions, which can execute the computer readable program instructions.
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 (10)

1. A graph module data sharing system based on a power distribution topology model, comprising:
the system comprises an information exchange bus, a verification module, a database and a data aggregator;
the information exchange bus comprises an information exchange middleware and a plurality of adapters, the information exchange middleware is connected with the adapters, and the adapters are connected with different application systems; when the graph model data are interacted in the information exchange bus, establishing a business static arrangement and a message dynamic route based on a theme, wherein the theme comprises a verb and a message name;
the verification module is used for verifying the topological communication rate, the graphic model integrity rate, the graphic model attribute unique rate and the graphic model mismatch probability of the graphic model data, and storing the verified graphic model data into a database after the operations of conversion, splicing and fusion of the graphic model data are performed through an information exchange bus;
the access node sends a graph module data sharing request to the accessed node through the information exchange bus, and after the accessed node verifies the identity of the access node, the access node establishes a sharing constraint condition and determines the address of the shared graph module data in the database, and sends the sharing constraint condition and the shared graph module data address to a data aggregator to which the accessed node belongs; and when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly sends the sharing constraint condition and the sharing graph data address to the access node, and if the sharing constraint condition and the sharing graph data address are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are sent to a neighboring data aggregator of the access node based on the intelligent contract, and the neighboring data aggregator repeatedly executes the encrypted sharing constraint condition and the encrypted sharing graph data address to finally send the sharing constraint condition and the sharing graph data address to the access node.
2. A graph module sharing system based on a power distribution topology model as recited in claim 1, comprising:
the graph module data of the system comprises: main network pattern data, distribution network pattern data, low-voltage equipment pattern data and new energy pattern data; the graph mode data is the data of the combination of the public information model and the scalable vector graph.
3. A graph module sharing system based on a power distribution topology model as recited in claim 1, comprising:
when the power distribution network equipment is replaced, the equipment IDs before and after replacement in the pattern data are kept unchanged.
4. A graph module sharing system based on a power distribution topology model as recited in claim 1, comprising:
the system also comprises a version management module for managing the version of the pattern data according to the standard pattern data.
5. A graph module sharing system based on a power distribution topology model as recited in claim 1, comprising:
the verification of the graph mode data comprises the following steps: topology connectivity rate, graph model integrity rate, graph model attribute unique rate and graph model mismatch probability.
6. A graph module sharing system based on a power distribution topology model as recited in claim 5, comprising:
the topology connectivity rate includes:
in the medium voltage condition, taking the ratio of the number of transformers which are mutually communicated with the topology to the total number of transformers as the medium voltage topology communication rate;
under the condition of low voltage, the total number of the low voltage lines and the total number of all the low voltage lines which are mutually communicated in the topological structure is used as the low voltage topological communication rate;
under the condition of forming the ring by the illegal topology, the ratio of the number of loops obtained after the ring is formed by the interconnection of the illegal topology to the total number of routes is taken as the illegal topology ring forming communication rate.
7. The graph module data sharing system based on the power distribution topology model of claim 6, comprising:
the pattern integrity rate includes:
the complete rate of the station line relationship is the ratio of the number of complete feeder lines of the power grid in the station line relationship to the total number of all feeder lines in the power grid;
the ratio of the number of transformers to the total number of transformers is used as the linear transformation relation integrity rate when the linear transformation relation integrity rate is complete;
the user-to-user relationship integrity rate is used as the ratio of the low-voltage users with complete user-to-user relationship to the total number of the low-voltage users;
the ratio of the number of switch rooms available in the interior map to the total number of switch rooms is taken as the interior map integrity rate.
8. The graph module data sharing system based on the power distribution topology model of claim 6, comprising:
the graph mode attribute unique rate comprises:
the unique rate of the ID attribute is defined as the unique rate of the ID attribute, which is the ratio of the difference between 1 and the number of devices with repeated ID attributes in the power distribution network to the total number of devices in the power distribution network;
the name attribute unique rate is defined as the ratio of the difference between 1 and the number of device name attribute repetitions in the distribution network to the total number of devices in the distribution network.
9. The graph module data sharing system based on the power distribution topology model of claim 6, comprising:
the pattern mismatch probability includes:
the graph-presence and non-mode rate takes the ratio of the number of the equipment primitives without corresponding relation to the equipment primitives as the graph-presence and non-mode rate;
the ratio of the number of models of the equipment to the total number of models of the equipment when the corresponding relation is not available is taken as the pattern ratio.
10. The graph module data sharing method based on the power distribution topology model is characterized by comprising the following steps of:
step 1, an access node sends a graph module data sharing request to an accessed node through an information exchange bus, after the accessed node verifies the identity of the access node, a sharing constraint condition is formulated, the address of the shared graph module data in a database is determined, and the sharing constraint condition and the shared graph module data address are sent to a data aggregator to which the accessed node belongs;
and 2, when the access node and the accessed node are in the coverage range of the same data aggregator, the data aggregator directly transmits the sharing constraint condition and the sharing graph data address to the access node, and if the access node and the accessed node are not in the coverage range of the same data aggregator, the encrypted sharing constraint condition and the sharing graph data address are transmitted to a neighboring data aggregator of the access node based on an intelligent contract, and the neighboring data aggregator repeats the step 2 to finally transmit the sharing constraint condition and the sharing graph data address to the access node.
CN202311741218.8A 2023-12-18 2023-12-18 Graph module data sharing system and method based on power distribution topology model Pending CN117713080A (en)

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