CN103646355A - Rapid construction and analysis method for power-grid topology relation - Google Patents
Rapid construction and analysis method for power-grid topology relation Download PDFInfo
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Abstract
The invention aims at providing a rapid construction and analysis method for a power-grid topology relation. The method includes constructing the power-grid topology relation, and performing power-grid analysis and power-grid topology verification according to the power-grid topology relation, wherein constructing of the power-grid topology relation includes constructing of a topology space data structure; the power-grid analysis includes power-grid connectivity analysis, power-grid tracking analysis, power-off-area analysis and power-grid topology verification analysis; and the power-grid topology verification includes verification of subordination relation, inclusion relation and connection relation of electrical devices. The rapid construction and analysis method for the power-grid topology relation is capable of performing topology reconstruction and inspection in a real-time manner. The method not only pays close attention to processing of space data, but also pays more attention to the connection relation of the devices and expression of the power-grid topology and power-grid topology application analysis.
Description
Technical field
This patent belongs to administration of power networks and application.Use the correlation technique of Geographic Information System (GIS), in conjunction with electrical network geographical location information, rapid build power network topology model, and can carry out in real time inspection, the renewal of topological relation and revise, and conventional power network topology analysis.
Background technology
In electric power application and administration system, description and the topological analysis of network structure have consequence, or even the foundation stone of a lot of service application, early stage network topology analysis is all based on specific data structure, its ubiquitous shortcoming is that efficiency is low and extendability is poor, in network, increased newly when certain equipment or certain electrical equipment possess new topological property and can not automatically adapt to well, may need to carry out a large amount of modifications, from the angle of system see stability and reusability all a little less than, the trend that can not adapt to well following power information system intelligent development. therefore how from actual electric system, to extract general topological model, how to utilize this general topology to carry out fast better, the electric power graphs topological analysis of intelligence has become industry focus.
Traditional power network topology analysis and research mainly concentrate on topological analysis algorithm and topological analysis application is upper, and owing to not combining with GIS technology, power network topology analysis result shows not directly perceived, and interactivity is poor, have greatly restricted the development of power network topology application.In recent years, GIS is the application develop rapidly of power industry at home, also for power network topology analysis has indicated new research direction.Due to poor based on other electric network information system compatibility of general GIS, can not be well and other power information system carry out integrated.
This patent has proposed a kind of rapid build electrical network and has opened up relation, and carries out topology rebuilding, inspection in real time, not only pays close attention to the processing of spatial data, more focuses on the annexation of equipment room, more pays close attention to the expression of power network topology, and the topological applied analysis of electrical network.
Summary of the invention
The present invention is directed to traditional electrical net topology and build the correlation techniques structures such as graphics graph theory that adopt more, adopt GIS correlation technique to build, meanwhile realize quick topological analysis application.
Power network topology of the present invention is related to that rapid build and analytical approach mainly comprise structure power network topology relation, according to the electrical network relation of opening up, carry out electrical network analysis and power network topology verification, and each several part content is specific as follows:
1) process of structure power network topology relation is as follows:
1.1) structure of manifold data structure.Manifold data structure is the mode of spatial data organization of carrying out according to topological geometry principle.In power network topology relation, polygonized structure is the imbody of manifold data structure.This method is according to polygonized structure, set up corresponding tables of data for describe node, line segment, polygonal geometric attribute (as a position, line segment length etc.) with and the service attribute (as device type, device name etc.) of corresponding device.This is the importance that topological relation is set up, and mainly facilitates the quick realization of topological algorithm and the storage of topological relation.
1.2) grid equipment point, grid line and Grid face are measured to collection position information, according to the manifold data structure of setting up, fill corresponding position attribution, set up complete device space tables of data.Spatial data relation between grid equipment point comprises that topology comprises that (refer to geometrically be present in the similar of space diagram but topological relation) between element not at the same level, topology are adjacent (refers to be geometrically present in the topological relation between the same dvielement of space diagram, as node syntople, polygon syntople), three aspects of topology associated (referring to be geometrically present in the topological relation between the inhomogeneity element of space diagram).
1.3) grid equipment point, grid line and Grid face are carried out to operational information acquisition, insert business information data, apparatus for establishing attribute data table.It is associated that attribute data by device attribute tables of data and device space tables of data relevant device and spatial data carry out topological relation, forming device topological relation information table.
1.4) by equipment topological relation information table, utilize generalized information system, thereby build power network topology relation, in map, show topology information and the device distribution situation of whole electrical network.
2) process that power network topology is analyzed is as follows: electrical network connectivity analysis, electrical network follow-up analysis and power supply interrupted district analysis and power network topology check analysis.Main technical schemes is as follows:
2.1) electrical network connectivity analysis: by the topological relation information table of having set up, from known electric network data starting point, progressively iteration is found electrical network associated with it, and use different color attributes to mark whether to be communicated with or connective obstacle.
2.2) electrical network follow-up analysis: the topological relation information table of setting up by step (1) is progressively found associated electrical network, comprises that the whole network is followed the trail of, follow the trail of in loop and has target tracking.The tracking range that the whole network is followed the trail of is whole electrical network, the equipment that only inquiry is positioned at the same circuit is followed the trail of in loop, has target tracking to refer to and in electrical network, take some equipment as starting point, follows the trail of a certain specific objective or meets the target of certain class condition, when target is found, follows the trail of and just stop.
2.3) power failure range analysis: switchgear carries out after simulated operation in to electrical network, calculates power supply interrupted district, and power supply interrupted district is carried out on electronic chart to highlighted demonstration.It is electrical network to be divided into the sub-network of some electrical communication that power failure range calculates, and the subnet that does not wherein comprise power supply point is exactly power supply interrupted district, also can adopt other modes well known in the art to calculate power failure range.Power failure range analysis has very large booster action in power scheduling, when debugging center will change the method for operation, can in Geographic Information System, simulate and carry out, using sunykatuib analysis result as an advisory opinion, thereby make the operation of electrical network safer, stable.
3) power network topology verification: comprise the verification to the annexation of subordinate relation, relation of inclusion, electrical equipment.The object of the verification of subordinate relation is mainly indoor equipment, and this indoor equipment must be set up subordinate relation with room/station, place; The equipment that has subordinate relation defining in database is to meet the equipment defining in distribution instructions.The verification of relation of inclusion is to have between the equipment of relation of inclusion to set up correct relation of inclusion; The equipment that has relation of inclusion defining in database is to meet the equipment defining in distribution instructions.The verification of annexation is the requirement according to equipment connection point, sets up correct annexation; The equipment that has annexation defining in database must be to meet the equipment defining in distribution instructions.
Accompanying drawing explanation
Fig. 1 is power network topology illustrative view of functional configuration of the present invention;
Fig. 2 is that power network topology of the present invention is related to rapid build and analytical approach process flow diagram.
Embodiment
Below the embodiment of the inventive method is elaborated.
As shown in Figure 1, power network topology of the present invention is related to that rapid build and analytical approach patent mainly comprise three aspects: build power network topology relation, according to the electrical network relation of opening up, carry out electrical network analysis, power network topology verification.The flow process of concrete structure and analytical approach as shown in Figure 2, comprises the steps:
1) process of structure power network topology relation is as follows:
1.1) design of the electric network data Topological data structure based on GIS.
Towards the power network topology model of GIS, mainly design the data of three types, mean respectively the spatial data of spatial entities locus, the attribute information of the grid topology data of representation space entity power network topology relation and description spatial entities.The target of real world is abstracted into the spatial entities of point, line, surface or their combination composition.Spatial data refers to the data for the position of representation space entity, shape, size and all multi-aspect informations of distribution characteristics thereof, and it can be used for describing the target from real world, and it has the characteristics such as location, qualitative, time and spatial relationship.
1.2) original power network topology relation is set up
Original topology relation between electrical network is original topological structure of electric.Preliminary examination topological relation between grid equipment is stored according to Topological data structure.Comprise basic topological relation.
2) power network topology relationship analysis method is realized, and comprises that electrical network follow-up analysis, topological data layer-management, the whole network connectivity analysis, connectivity analysis, power supply point are reviewed, power failure range analysis at 2.
2.1) electrical network follow-up analysis: electrical network follow-up analysis is the basic function that power network topology is analyzed, and is also the core of topology analysis model, and its major function is by specifying some conditions, searches for particular device or path in electrical network.Electrical network is followed the trail of three kinds of main Types, has comprised the whole network tracking, loop tracking and has had target tracking.The whole network is followed the trail of and is referred to that tracking range is whole electrical network, and the equipment that only inquiry is positioned at the same circuit is followed the trail of in loop.And there is target tracking to refer to, in electrical network, take some equipment as starting point, follow the trail of the target of a certain specific objective or compound certain class condition, when target is found, follows the trail of and just stop.Electrical network is followed the trail of by tracking and managing and is followed the trail of operation two parts and forms.The functions such as that the major function of tracking and managing comprises that electrical network follows the trail of is newly-built, deletion.Follow the trail of operation and be responsible for, according to the tracking condition of tracking and managing definition, calling related algorithm and calculating result, and will return results circuit and mark on electronic chart.
2.2) topological data layer-management: before setting up electrical network tracking, must first define the data set that operation is followed the trail of, also can be described as topological data set, this data set is called to topological layer herein.A topological layer is exactly a topological data set that can move tracking.Topological layer is an abstract concept, and it is comprised of the electrical equipment connection data of some facility figure layers (such as shaft tower layer, switching layer) and required other attribute data of topological analysis.Its major function comprise topological layer newly-built, delete, revise.
2.3) the whole network connectivity analysis: the complex structure of power distribution network, equipment is various, and electric connecting relation is complicated, so electrical connectivity analysis occupies very important status in electric power management system.The whole network connectivity analysis is the core algorithm based on electrical communication relation just, is the basis of power network topology analytical algorithm model, has mainly comprised related data structures and the graph search algorithm of graph theory.In addition, in order to facilitate calling of power network topology analyzing subsystem, also added the kit that carries out topological data initialization and result data processing.Core algorithm is as relatively independent designing.Consider the variation of spatial entities information, adopt the design that stencil design pattern is carried out data structure and algorithm, by a general type class, define the summit of figure, make it can represent different topological layer.Kit adopts single routine Design Mode to design, and it is responsible for carrying out the initialization of data before calling core algorithm, and before result is returned, carries out the arrangement of data, makes its data layout and the peripheral model compatibility mutually of calling.So kit can be regarded as to an adapter of this algorithm.It draws each connected domain of electrical network fast by the topological analysis computing based on electrical connectivity, and well river different colours is painted.It can carry out subnet division to electrical network fast, is also the basis of a lot of senior electrical network analysis functions, such as power failure range analysis.It has important meaning in Electric Power Network Planning, grid maintenance.The major function of the whole network connectivity analysis is to analyze whole electrical network or the internal electric of certain subnet is connective, calculates the connection subdomain of electrical network, and adopts different colours at chart display electronically the equipment that belongs to different connected domains.
2.4) 2 connectivity analysis: identical with the whole network connectivity analysis, 2 connectivity analysis are also the topological computings based on electric connecting relation.Whether 2 connectivity analysis are according to a deciliter state analysis for grid equipment, to go out two equipment be electrically connected and ask its phase access path, and utilize red line figure layer painted on map.
2.5) power supply point is reviewed: power supply point is reviewed and referred in electrical network, specifies an equipment and calculates its supply path.While there is fault in electrical network, just can upwards investigate step by step trouble spot by supply path.Thereby effectively reduce the malfunction elimination time, improved work efficiency day.The definition of power supply point is not completely specified, and in power transmission network, power station is considered to power supply point conventionally, and in power distribution network and subnet thereof, transformer station or public change is considered to power supply point.So, in reviewing, power supply point must consider the factor that these are variable, support to carry out the definition of power supply point.What power supply point was reviewed is mainly to calculate in electrical network to participate in the supply path of the equipment of electrical communication relation, and on map, carries out painted.
2.6) power failure range analysis: power failure range analysis has very large booster action in power scheduling, when debugging center will change the method for operation, can in Geographic Information System, simulate and carry out, using sunykatuib analysis result as an advisory opinion, thereby make the operation of electrical network safer, stable.The major function that power failure range divides is that switchgear carries out after simulated operation in to electrical network, calculates power supply interrupted district, and power supply interrupted district is carried out on map to highlighted demonstration.Power failure range calculates a variety of methods, but its core is electrical network to be divided into the sub-network of some electrical communication, and the subnet that does not comprise power supply point is exactly power supply interrupted district.
3) power network topology correct relation verification.According to existing power network topology analytical model, realize the Correctness checking of power network topology relation, comprise the verification of subordinate relation, relation of inclusion, annexation.
Embodiments of the present invention are not limited to this; under the above-mentioned basic fundamental thought of the present invention prerequisite; modification, replacement or the change to other various ways that content of the present invention is made according to the ordinary skill knowledge of this area and customary means, within all dropping on rights protection scope of the present invention.
Claims (9)
1. power network topology is related to rapid build and an analytical approach, it is characterized in that comprising structure power network topology relation, according to the electrical network relation of opening up, carries out electrical network analysis and power network topology verification, and each several part content is specific as follows:
1) process of structure power network topology relation is as follows:
1.1) structure of manifold data structure;
1.2) grid equipment point, grid line and Grid face are measured to collection position information, according to the manifold data structure of setting up, fill corresponding position attribution, set up complete device space tables of data;
1.3) grid equipment point, grid line and Grid face are carried out to operational information acquisition, insert business information data, apparatus for establishing attribute data table; It is associated that attribute data by device attribute tables of data and device space tables of data relevant device and spatial data carry out topological relation, forming device topological relation information table;
1.4) by equipment topological relation information table, utilize generalized information system to build power network topology relation, in map, show topology information and the device distribution situation of whole electrical network;
2) described power network topology analysis comprises electrical network connectivity analysis, electrical network follow-up analysis and power supply interrupted district analysis and power network topology check analysis;
2.1) described electrical network connectivity analysis is by the topological relation information table of having set up, and from known electric network data starting point, progressively iteration is found electrical network associated with it, and uses different color attributes to mark whether to be communicated with or connective obstacle;
2.2) the topological relation information table that described electrical network follow-up analysis is set up by step (1) is progressively found associated electrical network, comprises that the whole network is followed the trail of, follow the trail of in loop and has target tracking;
2.3) described power failure range analysis switchgear in to electrical network carries out after simulated operation, calculate power supply interrupted district, and power supply interrupted district carries out highlighted demonstration on electronic chart;
3) described power network topology verification comprises the verification to the annexation of subordinate relation, relation of inclusion, electrical equipment.
2. power network topology according to claim 1 is related to rapid build and analytical approach, it is characterized in that: the structure of manifold data structure described step 1.1) be set up corresponding tables of data for describe node, line segment, polygonal geometric attribute with and the service attribute of corresponding device.
3. power network topology according to claim 1 is related to rapid build and analytical approach, it is characterized in that: the spatial data relation between grid equipment point described step 1.2) comprises that topology comprises, topology is adjacent, associated three aspects of topology.
4. power network topology according to claim 3 is related to rapid build and analytical approach, it is characterized in that: it is to be geometrically present in the similar of space diagram but topological relation between element not at the same level that described topology comprises.
5. power network topology according to claim 3 is related to rapid build and analytical approach, it is characterized in that: described topology is adjacent is the topological relation being geometrically present between the same dvielement of space diagram, comprises node syntople and polygon syntople.
6. power network topology according to claim 3 is related to rapid build and analytical approach, it is characterized in that: described topological association is the topological relation being geometrically present between the inhomogeneity element of space diagram.
7. power network topology according to claim 1 is related to rapid build and analytical approach, it is characterized in that: the tracking range that the whole network described step 2.2) is followed the trail of is whole electrical network, the equipment that only inquiry is positioned at the same circuit is followed the trail of in described loop, described have target tracking to refer in electrical network, to take some equipment as starting point, follow the trail of a certain specific objective or meet the target of certain class condition, when target is found, follows the trail of and just stop.
8. power network topology according to claim 1 is related to rapid build and analytical approach, it is characterized in that: it is electrical network to be divided into the sub-network of some electrical communication that power failure range described step 2.3) calculates, and the subnet that does not wherein comprise power supply point is exactly power supply interrupted district.
9. power network topology according to claim 1 is related to rapid build and analytical approach, it is characterized in that: the object of the verification of the subordinate relation of described step 3) is mainly indoor equipment, and this indoor equipment must be set up subordinate relation with room/station, place; The equipment that has subordinate relation defining in database is to meet the equipment defining in distribution instructions; The verification of described relation of inclusion is to have between the equipment of relation of inclusion to set up correct relation of inclusion; The equipment that has relation of inclusion defining in database is to meet the equipment defining in distribution instructions; The verification of described annexation is the requirement according to equipment connection point, sets up correct annexation; The equipment that has annexation defining in database must be to meet the equipment defining in distribution instructions.
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| CN116192649A (en) * | 2023-02-07 | 2023-05-30 | 浪潮通信信息***有限公司 | Service data integrity analysis method based on model topology |
| CN116613892A (en) * | 2023-07-18 | 2023-08-18 | 南方电网数字电网研究院有限公司 | Device incremental topology analysis method, device, computer device and storage medium |
| CN116613892B (en) * | 2023-07-18 | 2024-02-27 | 南方电网数字电网研究院有限公司 | Device incremental topology analysis method, device, computer device and storage medium |
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