CN108764750A - Main distribution network model modeling and topology analyzing method and system - Google Patents
Main distribution network model modeling and topology analyzing method and system Download PDFInfo
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Abstract
The present invention provides the modeling of main distribution network model and topology analyzing method and systems, including obtain the model data information of main distribution；Main distribution Integrated Model is established, and is classified to model data information to realize main distribution compatibility expression；On the basis of main distribution is compatible with and expresses, main distribution data topological structure is established；Main distribution data topological structure is detected, and carries out topological analysis.The compatibility table that the present invention realizes main distribution reaches, and creates the undirected graph topological structure of main distribution on this basis, more adapts to being incorporated to for distributed generation resource, is suitable for the analysis of nowadays power grid big data quantity.
Description
Technical field
The present invention relates to technical field of power systems, more particularly, to the modeling of main distribution network model and topology analyzing method and are
System.
Background technology
Distribution network automated and management system item, the power distribution network network model that China is implemented mainly are believed from geography
Breath system or production management system import, and complete the splicing with Energy Management System scheduling model, also have some projects to pass through
The mode of manual maintenance carries out power distribution network network model structure, that generally there are electricity distribution network model quality is relatively low, model is imperfect,
The problems such as topology connection is chaotic, model variation can not perceive.
Current distribution network model file mostly uses greatly offlineization interaction, so CIM/XML formats, which are widely used, carries out distribution mould
The interaction of type data with it is shared.And the CIME/E formats that major network model data is on-time model interaction mostly carry out distribution network model friendship
Mutually.Although two kinds of formats can clearly express the electric network composition of grid model data, since the difference of format causes master to match
Network data can not be again described in identical file.
"current" model topology mostly uses tree topology greatly, and the advantage and disadvantage of tree topology are also apparent.For working as
The developing direction of preceding intelligent grid, original topologies cannot more support the model topology of complex electric network.
Invention content
In view of this, the purpose of the present invention is to provide the modeling of main distribution network model and topology analyzing method and system, realize
The compatibility table of main distribution reaches, and creates the undirected graph topological structure of main distribution on this basis, more adapts to distributed
Power supply is incorporated to, and is suitable for the analysis of nowadays power grid big data quantity.
In a first aspect, an embodiment of the present invention provides the modeling of main distribution network model and topology analyzing methods, including：
Obtain the model data information of main distribution；
Main distribution Integrated Model is established, and is classified to the model data information to realize main distribution compatibility table
It reaches；
On the basis of the main distribution compatibility expression, main distribution data topological structure is established；
The main distribution data topological structure is detected, and carries out topological analysis.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
It states on the basis of the main distribution compatibility expression, establishing main distribution data topological structure includes：
Obtain facility information, equipment connection period and hierarchical structure；
The main distribution data topology is created according to the facility information, equipment connection period and the hierarchical structure
The object of structure.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides second of first aspect
Possible embodiment, wherein the main distribution data topological structure includes non-directed graph, described according to the facility information, institute
It states equipment connection period and the hierarchical structure creates the object of the main distribution data topological structure and includes：
According to the facility information, using corresponding equipment as the point of the non-directed graph；
Period is connected according to the equipment, using the connection period of the equipment as the side of the non-directed graph；
The main distribution data topological structure is established according to the side of the point of the non-directed graph and the non-directed graph.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein the equipment includes single-ended equipment and two-end device, the number of edges of the corresponding non-directed graph of the equipment
For the number of the node number of the equipment.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 4th kind of first aspect
Possible embodiment, wherein the equipment room is connected by an identical node number, and identical two node numbers
It is unified for a line of the non-directed graph.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 5th kind of first aspect
Possible embodiment, wherein the detection main distribution data topological structure, and carry out topological analysis and include：
Begun stepping through from any point of the non-directed graph in the main distribution data topological structure, inquiry with it is described any
The tie point that point is connected；
The tie point is continued to traverse, inquires the candidate point to be traversed being connected with the tie point.
The 5th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 6th kind of first aspect
Possible embodiment, wherein further include：
In the case where the non-directed graph is connected graph, traversal range will cover the entire non-directed graph；
In the case where the non-directed graph is unconnected graph, non-directed graph described in covering part is obtained orphan by traversal range
Vertical electrical island or stand-alone device.
The 6th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 7th kind of first aspect
Possible embodiment, wherein further include：
Device type in the size and island of electrical island is determined according to the quantity of overlay device in the isolated electrical island.
With reference to first aspect, an embodiment of the present invention provides the 8th kind of possible embodiments of first aspect, wherein institute
It states and establishes main distribution Integrated Model and include：
According to power grid universal model Description standard CIM/E to establishing the main distribution Integrated Model.
Second aspect, an embodiment of the present invention provides the modeling of main distribution network model and topological analysis systems, including：
Acquiring unit, the model data information for obtaining main distribution；
Model foundation unit, for establishing main distribution Integrated Model, and to the model data information classify with
Realize main distribution compatibility expression；
Topology establishes unit, on the basis of the main distribution compatibility expression, establishes main distribution data topological structure；
Detection unit for detecting the main distribution data topological structure, and carries out topological analysis.
The present invention provides the modeling of main distribution network model and topology analyzing method and systems, including obtain the pattern number of main distribution
It is believed that breath；Main distribution Integrated Model is established, and is classified to model data information to realize main distribution compatibility expression；In master
On the basis of distribution compatibility expression, main distribution data topological structure is established；Main distribution data topological structure is detected, and carries out topology
Analysis.The compatibility table that the present invention realizes main distribution reaches, and creates the undirected graph topological structure of main distribution on this basis,
Being incorporated to for distributed generation resource is more adapted to, the analysis of nowadays power grid big data quantity is suitable for.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is device abstract schematic diagram provided in an embodiment of the present invention；
Fig. 2 is single-ended equipment provided in an embodiment of the present invention and two-end device abstract schematic；
Fig. 3 is the connected abstract abstract schematic of two equipment provided in an embodiment of the present invention；
Fig. 4 is non-directed graph schematic diagram provided in an embodiment of the present invention；
Fig. 5 is main distribution network model modeling provided in an embodiment of the present invention and topology analyzing method flow chart；
Fig. 6 is main distribution network model modeling provided in an embodiment of the present invention and topological analysis system schematic.
Icon：10- acquiring units；20- model foundation units；30- topologys establish unit；40- detection units.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Currently, dendrogram has the advantages that be easy to extend and be readily isolated failure, but inevitably, with star topology
It is similar, if root node breaks down, it can also cause the whole network cisco unity malfunction.Based on this, master provided in an embodiment of the present invention matches
Pessimistic concurrency control modeling and topology analyzing method and system, the compatibility table for realizing main distribution reaches, and creates on this basis
The undirected graph topological structure of main distribution more adapts to being incorporated to for distributed generation resource, is suitable for the analysis of nowadays power grid big data quantity.
For ease of understanding the present embodiment, the main distribution network model disclosed in the embodiment of the present invention is modeled and opened up first
Analysis method is flutterred to describe in detail.
Electric network model is a kind of digitized description of objective electric power grid structure.Electricity grid network model is electric system software
The basis of analysis.Intelligent scheduling requires complete, consistent, accurate, timely, reliable grid model data to support.Thus it is guaranteed that electric
The integrality and correctness of net network model are the core links during automatic System Construction..
Preferably to state the technical principle of the present embodiment, first to the present embodiments relate to abbreviation and crucial art
Language is defined.It specifically includes：
Major network：It is the major networks of power supply enterprise's transmission of electricity, is to the network between power plant on power distribution network, is power distribution network
Power supply, refer generally to the supply network of 35KV or more.
Power distribution network：Refer to receiving electric energy from power transmission network or regional power plant, distributes or press voltage on the spot by distribution facility
The power network of all types of user is distributed to step by step.It is by overhead transmission line, cable, shaft tower, distribution transformer, disconnecting switch, idle benefit
The compositions such as device and some affiliated facilities are repaid, the network of important distribution electric energy effect is played in power network.Present document relates to distributions to be
(35kV and following)
Non-directed graph：The topological structure that the nonoriented edge that two vertex are connected can be made of with one group one group of vertex.
CIM-E：Power grid universal model Description standard (CIM/E) is national standard, and E linguistic norms are in IEC 61970-
The object-oriented of 301 electric system common data model CIM (Common Information Model, common data model) is taken out
As on the basis of, for CIM with expandable mark language XML (Extensible Markup Language, extensible markup language
Speech) a kind of new and effective electric power system data markup language for being formulated of efficiency defect of mode when being described.
CIM-XML：Model exchange format (Model Exchange Format), abbreviation CIM/XML is international standard, electricity
Most of applications of Force system are all based on CIM/XML and carry out off-line model exchange.
The embodiment of the present invention will be described in detail below.
With reference to Fig. 5, main distribution network model modeling provided in this embodiment and topology analyzing method include the following steps：
Step S101 obtains the model data information of main distribution；
Step S102 establishes main distribution Integrated Model, and classifies to model data information to realize that main distribution is simultaneous
Hold expression；
Step S103 establishes main distribution data topological structure on the basis of main distribution is compatible with and expresses；
Step S104 detects main distribution data topological structure, and carries out topological analysis.
Further, the step of establishing main distribution Integrated Model in step S102 include：
According to power grid universal model Description standard CIM/E to establishing main distribution Integrated Model.
Specifically, the generalized model information that main distribution Integrated Model is related to mainly include electric network model, figure, in real time
Operation data (referred to as figure, mould, number integration).With Common Information Model (common in two big automated systems
Information model, CIM) file implementation model information sharing, the present invention is with E files realization real-time running data information
It is shared.
Major network model follows 61970 standards of IEC, and 61968 standards of IEC 61970/IEC are followed with electric model, table 1 with
The difference of main distribution network model is given for CIM11 versions, includes mainly 5 class objects：Container class, conductive equipment class, topological class,
Measure class, dictionary class.There is also larger differences for equipment topology situation in main, distribution network model.Major network topology be it is netted build, it is netted
Operation；Distribution network model includes the information of a small amount of power supply plant stand based on feeder line, is radial pattern or looped network construction with net topology, opens
Ring mode is run, and the equipment that feeder line includes is from service entrance switch to interconnection switch or tree structure is presented in end load.Scheduling is automatic
Model combination in change system between major network is complex, needs to consider various kinds of equipment as edge device.Electrical power distribution automatization system
Middle model combination is relatively easy, and for the model combination of master, distribution network model, the edge device between feeder line and power supply plant stand is inlet wire
Switch；For the model combination between interconnection tie, the edge device between feeder line and feeder line is interconnection switch.
1 main distribution network model class difference table of table
Main distribution integration mould is classified to model data according to the tag name of CIM-E, and example 1 is main distribution data
The examination example of differentiation.Same class equipment may be implemented by the differentiation of label, different attribute compatible cannot express, both may be used in this way
To realize the importing of main distribution data synchronization, while the connectivity of main distribution, the hierarchical relationship etc. of equipment can be analyzed
Verification.
Example 1：Major network model class label is：<Class name：：Major network></ class name：：Major network>
Distribution network model class label is：<Class name：：Distribution></ class name：：Distribution>
It should be noted that distribution network feeder is got up by affiliated substation in feeder line attribute and major network data management, match
The hierarchical relationship of net safeguards that major network is tieed up by affiliated substation's attribute of equipment by the affiliated feeder line attribute of equipment
Shield.
Therefore, the integrated management of the above-mentioned main distribution referred to is first innovative point of the embodiment of the present invention, builds nothing
To graph topological structure realized on the basis of the integrated management of main distribution.It will be apparent from the structure to non-directed graph below
It builds.
Further, step S103 includes：
Obtain facility information, equipment connection period and hierarchical structure；
The object of main distribution data topological structure is created according to facility information, equipment connection period and hierarchical structure.
Specifically, main distribution data topological structure includes non-directed graph, according to facility information, using corresponding equipment as described in
The point of non-directed graph；Period is connected according to equipment, using the connection period of equipment as the side of non-directed graph；According to the point and nothing of non-directed graph
Main distribution data topological structure is established to the side of figure.
Further, equipment includes single-ended equipment and two-end device, and the number of edges of the corresponding non-directed graph of equipment is the section of equipment
The number of period.Equipment room is connected by an identical node number, and identical two node numbers are unified for the one of non-directed graph
Side.
Further, step S104 includes the following steps：
It is begun stepping through from any point of the non-directed graph in main distribution data topological structure, inquires the company being connected with any point
Contact；
Tie point is continued to traverse, inquires the candidate point to be traversed being connected with tie point.
Further, in the case where non-directed graph is connected graph, traversal range will cover entire non-directed graph；
In the case where non-directed graph is unconnected graph, covering part non-directed graph is obtained isolated electrical island by traversal range
Or stand-alone device.
Furthermore it is also possible to determine equipment class in the size and island of electrical island according to the quantity of overlay device in isolated electrical island
Type.
The present invention provides the modeling of main distribution network model and topology analyzing method and systems, including obtain the pattern number of main distribution
It is believed that breath；Main distribution Integrated Model is established, and is classified to model data information to realize main distribution compatibility expression；In master
On the basis of distribution compatibility expression, main distribution data topological structure is established；Main distribution data topological structure is detected, and carries out topology
Analysis.The compatibility table that the present invention realizes main distribution reaches, and creates the undirected graph topological structure of main distribution on this basis,
Being incorporated to for distributed generation resource is more adapted to, the analysis of nowadays power grid big data quantity is suitable for.
With the development of distribution network automated business, distributed generation resource is increasingly incorporated into network operation, and distribution is transported by unit feeder
Row gradually to loop distribution network develop, town and country distribution network it is perfect, distribution becomes to become increasingly complex, to model topology tie
More stringent requirements are proposed for structure analysis ability.Traditional model topology analysis mainly uses tree, although tree energy
Hierarchical relationship between enough presentation devices well, but there is also many disadvantages, tree are the set of point, between node
There is one-to-many hierarchical relationships.And pattern storage organization includes the relationship gone back between them, be may exist between node
The relationship of multi-to-multi.So the topological structure of model how is more abstractively shown, especially when nowadays big data quantity is analyzed
It is particularly important.
The generation of topological structure is mainly by above-mentioned 2 key properties, the facility information generated using the data structure stage
And equipment room connection period, hierarchical structure, data integrity is analyzed, and built.Using equipment as the point of non-directed graph, equipment
Connection period be non-directed graph side, be created that the object of main distribution data topological structure.
The structure of non-directed graph, and can be realized by following methods with net topology by the way that non-directed graph detection is main：
(1) Fig. 1 is the example that device abstract is point.
(2) Fig. 2 carries out abstract example to single-ended equipment and two-end device respectively.And equipment has several node numbers just
It is abstracted as several sides.
(3) Fig. 3 is two two-end devices, and two equipment pass through the connected example of a same node point number.And it is identical
Two node abstractions are unified side.
(4) above example is the basic Component units that device abstract is non-directed graph, according to Fig. 4 it can be seen that one simple
The non-directed graph that main distribution data is constituted does not need the cumbersome level for going to judge the device type and closes when creating main distribution non-directed graph
System, the problems such as the direction of upstream and downstream, the significantly less time for creating topological structure.When traversing non-directed graph, from figure
Any one point is begun stepping through, such as：Switch 3, its side are e and f.Can inquire connected point from the sides e has, switch 2, switch 3,
Each node only traverses once, then this 2 node of switch can be as the candidate for continuing traversal next time.
And so on searching loop, if this figure is connection, this method eventually covers entire figure.On the contrary
If only a covering part is such as：Switch 5, switch 7, then it may determine that the electrical island is isolated island, and set by covering
Standby quantity can determine the size on island, and it is to belong to one to have that can distinguish the equipment currently covered by the type of equipment in island
The electrical island of power supply or a power free electrical island (power supply is power grid power supply unit such as major network busbar 1, busbar 2).And it is right
Such as in stand-alone device：Two node sides that switch 14 has, but it is not connected to any node or 15, switch a little not
Side, it can be concluded that be that isolated or sky is hung standby for the two equipment.
With reference to Fig. 6, main distribution network model modeling provided in this embodiment and topological analysis system include：
Acquiring unit 10, the model data information for obtaining main distribution；
Model foundation unit 20 is classified for establishing main distribution Integrated Model, and to model data information with reality
Now main distribution compatibility expression；
Topology establishes unit 30, on the basis of main distribution is compatible with and expresses, establishes main distribution data topological structure；
Detection unit 40 for detecting main distribution data topological structure, and carries out topological analysis.
Main distribution network model modeling provided in an embodiment of the present invention and topological analysis system, the master provided with above-described embodiment match
Pessimistic concurrency control models and topology analyzing method technical characteristic having the same reaches phase so can also solve identical technical problem
Same technique effect.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of main distribution network model modeling and topology analyzing method, which is characterized in that including：
Obtain the model data information of main distribution；
Main distribution Integrated Model is established, and is classified to the model data information to realize main distribution compatibility expression；
On the basis of the main distribution compatibility expression, main distribution data topological structure is established；
The main distribution data topological structure is detected, and carries out topological analysis.
2. main distribution network model modeling according to claim 1 and topology analyzing method, which is characterized in that described in the master
On the basis of distribution compatibility expression, establishing main distribution data topological structure includes：
Obtain facility information, equipment connection period and hierarchical structure；
The main distribution data topological structure is created according to the facility information, equipment connection period and the hierarchical structure
Object.
3. main distribution network model modeling according to claim 2 and topology analyzing method, which is characterized in that the master matches netting index
Include non-directed graph according to topological structure, it is described to be created according to the facility information, equipment connection period and the hierarchical structure
The object of the main distribution data topological structure includes：
According to the facility information, using corresponding equipment as the point of the non-directed graph；
Period is connected according to the equipment, using the connection period of the equipment as the side of the non-directed graph；
The main distribution data topological structure is established according to the side of the point of the non-directed graph and the non-directed graph.
4. main distribution network model modeling according to claim 3 and topology analyzing method, which is characterized in that the equipment includes
Single-ended equipment and two-end device, the number of edges of the corresponding non-directed graph of the equipment are the number of the node number of the equipment.
5. main distribution network model modeling according to claim 4 and topology analyzing method, which is characterized in that the equipment room is logical
It crosses an identical node number to be connected, and identical two node numbers are unified for a line of the non-directed graph.
6. main distribution network model modeling according to claim 3 and topology analyzing method, which is characterized in that described in the detection
Main distribution data topological structure, and carry out topological analysis and include：
It is begun stepping through from any point of the non-directed graph in the main distribution data topological structure, inquiry and any point phase
The tie point of connection；
The tie point is continued to traverse, inquires the candidate point to be traversed being connected with the tie point.
7. main distribution network model modeling according to claim 6 and topology analyzing method, which is characterized in that further include：
In the case where the non-directed graph is connected graph, traversal range will cover the entire non-directed graph；
In the case where the non-directed graph is unconnected graph, non-directed graph described in covering part is obtained isolated electricity by traversal range
Gas island or stand-alone device.
8. main distribution network model modeling according to claim 7 and topology analyzing method, which is characterized in that further include：
Device type in the size and island of electrical island is determined according to the quantity of overlay device in the isolated electrical island.
9. main distribution network model modeling according to claim 1 and topology analyzing method, which is characterized in that the foundation master matches
Net Integrated Model includes：
According to power grid universal model Description standard CIM/E to establishing the main distribution Integrated Model.
10. a kind of main distribution network model modeling and topological analysis system, which is characterized in that including：
Acquiring unit, the model data information for obtaining main distribution；
Model foundation unit is classified for establishing main distribution Integrated Model, and to the model data information to realize
Main distribution compatibility expression；
Topology establishes unit, on the basis of the main distribution compatibility expression, establishes main distribution data topological structure；
Detection unit for detecting the main distribution data topological structure, and carries out topological analysis.
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| CN110955783A (en) * | 2019-11-27 | 2020-04-03 | 广东电网有限责任公司 | Main and distribution network unified management model information completion method based on knowledge reasoning |
| CN111859586A (en) * | 2020-07-06 | 2020-10-30 | 广东电网有限责任公司 | Method for intelligently generating distribution network line automatic switch distribution diagram |
| CN112214859A (en) * | 2020-09-15 | 2021-01-12 | 国网上海能源互联网研究院有限公司 | Integrated integration method and system for main network model and distribution network model |
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| CN111859586A (en) * | 2020-07-06 | 2020-10-30 | 广东电网有限责任公司 | Method for intelligently generating distribution network line automatic switch distribution diagram |
| CN112214859A (en) * | 2020-09-15 | 2021-01-12 | 国网上海能源互联网研究院有限公司 | Integrated integration method and system for main network model and distribution network model |
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