CN105022892A - Hierarchical abstraction and compression method for distribution network model - Google Patents
Hierarchical abstraction and compression method for distribution network model Download PDFInfo
- Publication number
- CN105022892A CN105022892A CN201510483835.1A CN201510483835A CN105022892A CN 105022892 A CN105022892 A CN 105022892A CN 201510483835 A CN201510483835 A CN 201510483835A CN 105022892 A CN105022892 A CN 105022892A
- Authority
- CN
- China
- Prior art keywords
- layer
- voltage
- node
- feeder line
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a hierarchical abstraction and compression method for a distribution network model. The distribution network model is abstractly divided into four layers: a plant station layer, a switch layer, a connectivity layer and a user layer, wherein the connectivity layer, the switch layer and the user layer are obtained according to a compression algorithm, the compression rule of which is as follows: the connectivity layer: a feeder line is a whole object which is compressed to a segment and connectivity switches among different feeder lines are retained; the switch layer: a transitional branch without a switch object is compressed and the tail end of a radiation pattern branch of a non-important user is compressed, and no pole and tower information is retained, and cyclic compression is carried out; and the user layer: a transitional branch without a switch object is compressed, important pole and tower information and user nodes are retained, and cyclic compression is carried out. According to the method disclosed by the invention, the topological attributes of a multi-sided hierarchical model and a GIS detailed model of the distribution network are fully consistent, thereby better blending the requirement of macro and micro decision-making views required by a power distribution operation decision on corresponding abstraction model of the distribution network.
Description
Technical field
The present invention relates to data processing field in a kind of electric system, particularly a kind of electricity distribution network model Hierarchical abstraction and compression method.
Background technology
Currently to consider from data mapping angle, electricity distribution network model is normally provided by Distribution GIS, self platform of other application system importing is submitted to by being converted to the CIM/XML formatted file meeting IEC61970/61968 specification, for application system, its advantage is: the description granularity of this model is thinner, the requirement of different application systems can be met, for material management, production repairing is very important, but its shortcoming is: for power distribution network management and running decision-making, this model granularity just seems too careful and huge, be unfavorable for the foundation of power distribution network operational decisions macroscopic view and the simplification to analytical calculation.
Summary of the invention
Object of the present invention is just to provide a kind of electricity distribution network model Hierarchical abstraction and compression method, by setting up according to different needs the macrostructure that brief abstract model expresses power distribution network on careful model basis.
The object of the invention is by such technical scheme realize, it includes: be divided into four layers by abstract for electricity distribution network model, comprises plant stand layer, switching layer, contact layer and client layer; Plant stand layer is without topology, and described switching layer model, contact layer model and client layer model obtain according to compression algorithm, and reduced rule is as follows:
1-1) switching layer: circulation compression is without the transition type node of switch object and associated branch thereof, and the radial pattern branches end node of insignificant user, do not retain insignificant shaft tower information, its compression result is the node and the bifurcation that have switch, and namely after compression, associated branch is greater than 2;
1-2) get in touch with layer: by feeder line object as a whole, with virtual feeder messenger wire segment table show feeder line and plant stand and and adjacent interconnection tie between communication relationship, retain the interconnection switch between different feeder line;
1-3) client layer: circulation compression, without the transition type node of switch object, merges branch, retains important shaft tower information and whole user node, obtains the world model after eliminating transition node after compression.
Further, described plant stand layer is for expressing the relative position between plant stand, described contact layer is for showing transformer station and feeder line and the mutual communication relationship between feeder line and feeder line, described switching layer is for showing the switch-segment relation of feeder line inside, and described client layer is for showing particular user position.
Further, the compression method of described switching layer is specially:
2-1) calculate the outlet number of Voltage_Level;
2-2) differentiate in the Voltage_Level that outlet number equals 1 whether have switch or important load, if do not have, then compress the single branch of Voltage_Level and association thereof; If have, then circulate end;
2-3) differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, if do not have, then compress 2 branches of Voltage_Level and association thereof, and set up the mapping relations between virtual circuit and entity feeder line section; If have, then circulate end.
Further, the compression method of described contact layer is specially:
By the topology coloring of feeder line section, set up the mapping relations between feeder line and transformer station, the Voltage_Level of the non-transformer station of circular treatment, search the feeder line combination be interconnected, and feeder line group is generated as loop, set up the corresponding relation between feeder line and loop, the feeder line belonging to the same circuit is abstracted into the virtual feeder line section from transformer station, be connected with loop looped network, form the communication relationship figure between transformer station and feeder line.
Further, the compression method of described client layer is specially:
3-1) calculate the outlet number of Voltage_Level;
3-2) differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, if do not have, then compress 2 branches of Voltage_Level and association thereof, and set up the mapping relations between virtual circuit and entity feeder line section; If have, then circulate end.
Further, described electricity distribution network model comprises the T-shaped point of multiple branch, and the T-shaped point of described multiple branch is embodied by container class framework, and the method realizing container class framework is:
4-1) according to the relation of equipment and container in electricity distribution network model relational database, circulation searching equipment class object, sets up the container relation between plant stand class container and device object: plant stand > equipment;
4-2) according to the voltage type trigger voltage rating-type in the container relation of plant stand > equipment, formed: the container class relation of plant stand > electric pressure > equipment, and form node according to equipment, relation between port and node and point to relation between container: Node>Voltage_Level.
Further, the node of described Node>Voltage_Level is that empty object includes two kinds of situations: one is that actual containers exists, and another kind is merely T-shaped node.
Further, between described container, the generation type of relation Node>Voltage_Level is:
5-1) circulation searching Node>Voltage_Level is the tributary port that empty node is corresponding, and trigger new Voltage_Level and plant stand, and set up points relationship, be the actual lower label of Voltage_Level to node assignment simultaneously;
5-2) circulation searching switch and guillotine kind object, processing node assignment imbalance person, makes both equal, and after circulation searching terminates, the designation number of node object is exactly relation Voltage_Level between its container pointed to.
Owing to have employed technique scheme, the present invention has following advantage:
(1) model layers is: plant stand layer, communication relationship layer, switching layer, client layer etc., has merged the Macrocosm and microcosm decision-making visual field, has met the scheduling decision demand in the huge situation of power distribution network.
(2) establish power distribution network overall situation hierarchical model to describe, be conducive to realizing Local Search and tracking, substantially increase the recall precision of electricity distribution network model.
(3) on power distribution network hierarchical model basis, achieve the model compression method of shrinkage type from outside to inside, and set up the mapping relations between virtual objects and entity object simultaneously, for the model formed required for Macrocosm and microcosm decision-making is laid a good foundation.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by instructions below and claims and be obtained.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is electricity distribution network model layering of the present invention and compression method schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Electricity distribution network model Hierarchical abstraction and compression method, be divided into four layers by abstract for electricity distribution network model, comprise plant stand layer, switching layer, contact layer and client layer; Described client layer is for showing particular user position, and described switching layer is for showing feeder line inner feeder segmentation relation, and described contact layer is for showing transformer station and feeder line and the mutual communication relationship between feeder line and feeder line, described plant stand layer extracting directly; Described contact layer, switching layer and client layer model obtain according to compression algorithm, and its reduced rule is: contact layer: feeder line is whole object, is compressed to line segment, retains the interconnection switch between different feeder line; Switching layer: circulation compression is without the transition type branch of switch object, and the radial pattern branches end of insignificant user, does not retain any shaft tower information; Client layer: circulation compression, without the transition type branch of switch object, retains important shaft tower information and user node.
The compression method of described switching layer is: the outlet number calculating Voltage_Level; Differentiate in the Voltage_Level that outlet number equals 1 whether have switch or important load, without the single branch then compressing Voltage_Level and association thereof; Have, circulate end; Differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, without 2 branches then compressing Voltage_Level and association thereof, and set up the mapping relations between virtual circuit and entity feeder line section; Have, circulate end.
The compression method of described client layer is: the outlet number calculating Voltage_Level.Differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, without 2 branches then compressing Voltage_Level and association thereof, in 2 branches, only retain one, and peer node is inherited and abandoned the peer node number of branch; Have, circulate end.
The compression method of described contact layer is: by the topology coloring of feeder line section, set up the mapping relations between feeder line and transformer station, the voltage_level of the non-transformer station of circular treatment, search for the feeder line group be interconnected, trigger as loop, and the feeder line belonging to the same circuit is abstracted into the feeder line section from transformer station, be connected with loop, form the communication relationship figure between transformer station and feeder line.
Power distribution network is in large scale, realize the abstract compression process to model, its counting yield is the key factor that must consider, the scope be mainly reflected in for Local Search must be limited to the target area of object or the inside of its container class object belonged to, but not it is overall, the difficult point that power distribution network hierarchical model generates is the process to a large amount of T-shaped take-off points, and the basic framework of layered representation is as follows:
Container class framework: plant stand > electric pressure > equipment; Topological structure: device port > node;
In power distribution network relational data model describes, for the description of the T-shaped point of multiple-limb mainly through topological structure, and without container class framework, make hunting zone extendedization, affect search efficiency, therefore need the container class framework of the T-shaped point of expansion multiple-limb, method is as follows:
According to the relation of equipment and container in relation storehouse, recycle unit class object (comprising switch, disconnecting link, bus, transformer, load, capacitive reactance device etc.) sets up the container relation between plant stand class container and device object: plant stand > equipment;
According to the voltage type trigger voltage rating-type in the container relation of plant stand > equipment, formed: the container class relation of plant stand > electric pressure > equipment, and form the relation between node sensing container (electric pressure) according to the relation between equipment > port > node: Node>Voltage_Level.Node for Node>Voltage_Level is that empty object comprises two kinds of situations: actual containers exists or is only T-shaped node.
The method forming Node>Voltage_Level relation is:
(1) circulation Node>Voltage_Level is branch road (Feed Section) port that empty node is corresponding, trigger new Voltage_Level and station (Station), and set up points relationship, simultaneously to node assignment be Voltage_Level carry out label;
(2) cycling switch and guillotine kind object, processing node assignment imbalance person, makes it equal, and after circulation terminates, the designation number of node object is exactly the container Voltage_Level that it points to.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. electricity distribution network model Hierarchical abstraction and a compression method, is characterized in that, concrete mode is as follows: be divided into four layers by abstract for electricity distribution network model, comprises plant stand layer, switching layer, contact layer and client layer; Plant stand layer is without topology, and described switching layer model, contact layer model and client layer model obtain according to compression algorithm, and reduced rule is as follows:
1-1) switching layer: circulation compression is without the transition type node of switch object and associated branch thereof, and the radial pattern branches end node of insignificant user, do not retain insignificant shaft tower information, its compression result is the node and the bifurcation that have switch, and namely after compression, associated branch is greater than 2;
1-2) get in touch with layer: by feeder line object as a whole, with virtual feeder messenger wire segment table show feeder line and plant stand and and adjacent interconnection tie between communication relationship, retain the interconnection switch between different feeder line;
1-3) client layer: circulation compression, without the transition type node of switch object, merges branch, retains important shaft tower information and whole user node, obtains the world model after eliminating transition node after compression.
2. a kind of electricity distribution network model Hierarchical abstraction as claimed in claim 1 and compression method, it is characterized in that, described plant stand layer is for expressing the relative position between plant stand, described contact layer is for showing transformer station and feeder line and the mutual communication relationship between feeder line and feeder line, described switching layer is for showing the switch-segment relation of feeder line inside, and described client layer is for showing particular user position.
3. a kind of electricity distribution network model Hierarchical abstraction as claimed in claim 1 and compression method, it is characterized in that, the compression method of described switching layer is specially:
2-1) calculate the outlet number of Voltage_Level;
2-2) differentiate in the Voltage_Level that outlet number equals 1 whether have switch or important load, if do not have, then compress the single branch of Voltage_Level and association thereof; If have, then circulate end;
2-3) differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, if do not have, then compress 2 branches of Voltage_Level and association thereof, and set up the mapping relations between virtual circuit and entity feeder line section; If have, then circulate end.
4. a kind of electricity distribution network model Hierarchical abstraction as claimed in claim 1 and compression method, is characterized in that, the compression method of described contact layer is specially:
By the topology coloring of feeder line section, set up the mapping relations between feeder line and transformer station, the Voltage_Level of the non-transformer station of circular treatment, search the feeder line combination be interconnected, and feeder line group is generated as loop, set up the corresponding relation between feeder line and loop, the feeder line belonging to the same circuit is abstracted into the virtual feeder line section from transformer station, be connected with loop looped network, form the communication relationship figure between transformer station and feeder line.
5. a kind of electricity distribution network model Hierarchical abstraction as claimed in claim 1 and compression method, it is characterized in that, the compression method of described client layer is specially:
3-1) calculate the outlet number of Voltage_Level;
3-2) differentiate in the Voltage_Level that outlet number equals 2 whether have switch or important load, if do not have, then compress 2 branches of Voltage_Level and association thereof, and set up the mapping relations between virtual circuit and entity feeder line section; If have, then circulate end.
6. a kind of electricity distribution network model Hierarchical abstraction as claimed in claim 1 and compression method, is characterized in that, described electricity distribution network model comprises the T-shaped point of multiple branch, and the T-shaped point of described multiple branch is embodied by container class framework, and the method realizing container class framework is:
4-1) according to the relation of equipment and container in electricity distribution network model relational database, circulation searching equipment class object, sets up the container relation between plant stand class container and device object: plant stand > equipment;
4-2) according to the voltage type trigger voltage rating-type in the container relation of plant stand > equipment, formed: the container class relation of plant stand > electric pressure > equipment, and form node according to equipment, relation between port and node and point to relation between container: Node>Voltage_Level.
7. realize the method for container class framework as claimed in claim 5, it is characterized in that, the node of described Node>Voltage_Level is that empty object includes two kinds of situations: one is that actual containers exists, and another kind is merely T-shaped node.
8. realize the method for container class framework as claimed in claim 5, it is characterized in that, between described container, the generation type of relation Node>Voltage_Level is:
5-1) circulation searching Node>Voltage_Level is the tributary port that empty node is corresponding, and trigger new Voltage_Level and plant stand, and set up points relationship, be the actual lower label of Voltage_Level to node assignment simultaneously;
5-2) circulation searching switch and guillotine kind object, processing node assignment imbalance person, makes both equal, and after circulation searching terminates, the designation number of node object is exactly relation Voltage_Level between its container pointed to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483835.1A CN105022892A (en) | 2015-08-07 | 2015-08-07 | Hierarchical abstraction and compression method for distribution network model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483835.1A CN105022892A (en) | 2015-08-07 | 2015-08-07 | Hierarchical abstraction and compression method for distribution network model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105022892A true CN105022892A (en) | 2015-11-04 |
Family
ID=54412859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510483835.1A Pending CN105022892A (en) | 2015-08-07 | 2015-08-07 | Hierarchical abstraction and compression method for distribution network model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105022892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121851A (en) * | 2017-11-24 | 2018-06-05 | 广西电网有限责任公司 | A kind of operation of power networks cockpit view Dynamic Display method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499178A (en) * | 1991-12-16 | 1996-03-12 | Regents Of The University Of Minnesota | System for reducing harmonics by harmonic current injection |
| CN104598678A (en) * | 2015-01-12 | 2015-05-06 | 中国南方电网有限责任公司 | Generation method for logic geographic diagram of power transmission network |
| CN104794556A (en) * | 2015-01-12 | 2015-07-22 | 中国南方电网有限责任公司 | Abstraction compression method for power transmission network view model |
-
2015
- 2015-08-07 CN CN201510483835.1A patent/CN105022892A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5499178A (en) * | 1991-12-16 | 1996-03-12 | Regents Of The University Of Minnesota | System for reducing harmonics by harmonic current injection |
| CN104598678A (en) * | 2015-01-12 | 2015-05-06 | 中国南方电网有限责任公司 | Generation method for logic geographic diagram of power transmission network |
| CN104794556A (en) * | 2015-01-12 | 2015-07-22 | 中国南方电网有限责任公司 | Abstraction compression method for power transmission network view model |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121851A (en) * | 2017-11-24 | 2018-06-05 | 广西电网有限责任公司 | A kind of operation of power networks cockpit view Dynamic Display method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104156835B (en) | A kind of bulk power grid wide-area distribution type integration topology analyzing method | |
| CN103675600B (en) | Based on the Fault Diagnosis of Distribution Network system and method for topological knowledge | |
| CN102750406B (en) | Multi-version management method for model set and difference model-based power grid model | |
| WO2023115842A1 (en) | Data-driven offline and online integrated simulation system and method for power distribution network | |
| CN110108921A (en) | Consider that the flexible direct current Short-circuit Current of Power Network of converter Control calculates method and system | |
| CN105095600A (en) | Intelligent substation and regulation and control center coordinative modeling method | |
| CN104167736A (en) | Large power grid parallel network topology analyzing method | |
| CN109241169A (en) | The multi-source heterogeneous data fusion geo-database integration method of power distribution network operation information | |
| CN104156448A (en) | Data exchange model based on IEC 61850 client side/server | |
| CN104133943A (en) | Distribution network pattern automatic generating method based on target guide | |
| CN103903192B (en) | A kind of method for building up in power distribution network powering mode storehouse | |
| CN103107593A (en) | Circulation analysis system and circulation analysis method of complicated power distribution network loop closing operation | |
| CN103700032A (en) | Construction method of power grid regulation and control integration panoramic data platform | |
| CN102403718A (en) | Generating method for power grid topological relationship based on Arcgis | |
| CN105162133B (en) | Adjust critical point main transformer Target of Reactive Power value distribution method in ground | |
| CN103559042A (en) | Method for establishing distribution line loss CIM (common information model) based on IEC61970/61968 | |
| CN104967115B (en) | Distributed cluster type network topology coloring method for power system | |
| CN104866613A (en) | Method for establishing three-dimensional component model database of power grid equipment and facility | |
| CN109494719A (en) | A kind of mesolow mixing power distribution network stratification impedance analysis method | |
| CN110011301B (en) | Provincial power grid online dynamic partitioning method | |
| CN104821580B (en) | Three-phase reactive power control partitioning method based on reactive power source clustering analysis | |
| CN105022892A (en) | Hierarchical abstraction and compression method for distribution network model | |
| CN110311372A (en) | Sub-area division method based on spectral clustering | |
| CN104794556B (en) | The abstract and compression method of power transmission network view model | |
| CN103944166A (en) | Single transformer substation power supply mode set based regional power grid reconstruction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |