CN103150425A - Automatic generation method used for single line diagram of distribution network and based on topological hierarchy - Google Patents
Automatic generation method used for single line diagram of distribution network and based on topological hierarchy Download PDFInfo
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Abstract
The invention discloses an automatic generation method used for a single line diagram of a distribution network and based on topological hierarchy. The method comprises the following steps: deleting related equipment in a topological structure of the distribution network, and simplifying the topological structure of the distribution network; acquiring key nodes of the topological structure of the distribution network, and generating a main framework of the topological structure of the distribution network; arranging the positions of the key nodes based on a gravitation-repulsion model, and obtaining a skeletal structure based on the gravitation-repulsion; describing the topological structure of the distribution network through an outgoing line-trunk line-T-shaped key node-branch line model of a power station; finishing the arrangement and the automatic mapping of the equipment in the power station on the basis of the topological structure of the equipment in the power station; and performing routing mapping without overlap or intersection on decibels of the trunk line and the branch line respectively. The automatic generation method achieves automatic generation of the single line diagram of the distribution network above a certain scale, and simultaneously, the generated single line diagram is clearer and more attractive through the routing algorithm without overlap or intersection.
Description
Technical field
The present invention relates to a kind of drawing practice of power distribution network, particularly a kind of power distribution network line chart automatic generation method based on topological layering.
Background technology
Electric hookup is the visable representation to the power network topology state, is requisite graphic documentation in the Operation of Electric Systems management.Traditional electrical network line chart is to form by CAD mapping software manual drawing, and not only drawing amount is large, also has the inconsistent hidden danger of topological data and graphing.
At present, electrical network line chart automatic creation system mainly comprises automatic generation, the automatic generation of wall scroll feeder line line chart and three aspects of automatic generation of power transmission network tidal current chart of single factory station electric hookup, and these systems only can or generate corresponding wiring diagram in the zonule very much automatically to some specific part of electrical network.The power distribution network numerous for number of devices, that syndeton is complicated, existing drawing formation system can not be processed the topological data over certain scale, and disposable complete automatic generation clearly and data are line chart one to one.
Summary of the invention
In order to overcome the defective of prior art, the invention provides a kind of power distribution network line chart automatic generation method based on topological layering, comprise the following steps:
Initial power distribution network topological structure is simplified, made it only comprise main topological structure;
Obtain the key node of the power distribution network topological structure after simplification, generate the trunk skeleton of this power distribution network topological structure;
Based on gravitation-repulsion model, layout is carried out in described key node position, obtain the power distribution network trunk skeleton structure based on gravitation-repulsion;
Data structure by power station outlet-backbone-T-shaped node-branch line model is described the power distribution network topological structure;
Complete layout and the automatic mapping of equipment in the power station on the topological structure basis of equipment in the power station;
Respectively described backbone and described branch line are carried out zero lap cross wire and automatic mapping;
Wherein, defining the station exterior node that is connected with more than two equipment is T-shaped node; Definition is set out by T-shaped node a certain branch until end all the circuit that does not pass through other T-shaped nodes and power station is branch line; The power station is treated to dummy node; Power station dummy node and T-shaped node are defined as in the lump the key node of power distribution network; The circuit that definition connects any two key nodes is backbone; All key nodes and backbone are being followed the topological structure that consists of under former topological connection relation and are being defined as the skeleton structure of power distribution network.
Preferably, the described method that initial power distribution network topological structure is simplified comprises:
1) for any two direct wire equipment of series connection, the eigenwerts such as the impedance of one of them wire equipment, length are incorporated in another wire equipment, deleted simultaneously previous wire equipment, whole process changes original topological connection relation in;
2) for any two switchgears of directly connecting, directly with one of them switchgear deletion, if there is one to be isolating switch in these two switchgears, keep this killer switch equipment and delete another switchgear, do not change original topological connection relation in whole process;
3) be not the branch of load and transformer for the arbitrary topology end, take this end as starting point, delete all devices on this branch road.
Preferably, the described key node that obtains the power distribution network topological structure after simplification, the trunk skeleton that generates this power distribution network topological structure specifically comprises the following steps:
1) hunt out T-shaped node in topology by topological traversal method, and search for to end towards every branched line as starting point take this T-shaped node on this basis, determine branch lines all in topological structure;
2) with each power station in the power distribution network topology abstract be a dummy node, and the circuit switching that there is topological connection relation in all and this power station is completed obtaining of power station dummy node thus to this node;
3) the T-shaped node of being determined by above two steps and power station dummy node consist of the key node in power distribution network, determine backbone in topology by these nodes according to original topological connection relation, determine thus the topology of all key nodes and backbone formation;
4) topology of previous step being determined is redescribed with the CIM model, and the backbone with a wire equipment replacement in should topology generates one group of new topological data thus, is the topologically corresponding power distribution network trunk of initial power distribution network skeleton structure.
Preferably, describedly based on gravitation-repulsion model, layout is carried out in described key node position, obtains based on the method for the power distribution network trunk skeleton structure of gravitation-repulsion as follows:
1) to calculating gravitation between two nodes that direct connection relational is arranged arbitrarily, the size of gravitation is determined by this backbone number of devices to circuit representative between internodal distance and this two nodes;
2) to calculating repulsion between any two nodes in this topology, the repulsion size is inversely proportional to internodal square distance with this, is directly proportional to degree of node;
3) calculate making a concerted effort of the suffered gravitation of each node and repulsion, and change the coordinate position of node by this result, complete thus the layout of power distribution network skeleton structure, determine the coordinate position of key node in former topology.
Preferably, in described power station, the layout of equipment and automatic mapping method are as follows:
1. to each power station, take bus as the traversal starting point, take on this border, power station as the traversal terminal point, power station outlet class object of corresponding every corresponding generation of outlet, and determine this object part property value in ergodic process;
2. according to the position of backbone in trunk skeleton layout of power station outlet class object association, all outlets in the power station are divided into two groups that outlet direction makes progress and outlet direction is downward; To each group power station outlet, sort in order according to the slope size of the associated backbone of each outlet, thereby determine relative arrangement position between each power station outlet class object;
3. the coordinate of power station dummy node goes out the basis of each coordinate attributes value of line object as calculating the power station after the trunk skeleton layout, determines the starting point coordinate value of power station outlet class object according to the size of spacing between adjacent two power station outlets of setting; The position size occupied according to that group objects that in two groups of power station outlet class objects of 2. middle division, number of objects is many determined the length of every bus;
4. improve other coordinate attributes values in power station outlet class object, and then determine the coordinate position of equipment in each power station, complete layout and the automatic mapping of equipment in the power station.
Preferably, circuit zero lap cross wire flow process is as follows:
1. with a backbone related the outlet the most left or backbone rightmost side that is positioned at its power station, place be divided into the limit backbone, all the other are non-limit backbone, in following wiring process, preferential opposite side backbone connects up;
2. set up a vertical coordinate system, if the X value of this backbone two-end-point coordinate or Y value are equal, forward to 6., the end points of this backbone is respectively the first end points and the second end points;
The Y value of 3. getting the X value of first end point coordinate and the second end points coordinate consists of the break coordinate of this circuit, and this break is determined respectively vertical wiring and the horizontal wiring of this circuit with the first end points and the second end points;
If two wirings 4. determining in 3. with all wiring topology do not exist overlapping and intersect, forward to 6.; If exist overlapping and intersect, with the Y value of this break to the first end points direction Moving Unit length;
5. detect the Y value of this break this moment whether between the two-end-point Y value, if forward to 3.; If not the position of the mobile any end points of this circuit, increase its wiring scope, then forward to 2.;
6. this backbone wiring finishes.
Preferably, the automatic mapping method of backbone and branched line is as follows:
1. according to the topological order of connection of equipment room in backbone, call successively the drafting function of concrete equipment and draw all devices that this backbone comprises in the coordinate position scope that wiring determines;
2. the Nodes that connects at branched line detects its Y direction successively, negative Y direction, X-direction, whether negative X-direction is occupied by circuit, and whether this direction has enough spaces to complete the one-tenth figure of branch line, if this direction can connect up, selected this direction is the one-tenth figure direction of branch line; If can not, detect according to the order of sequence next direction, until find out its wiring direction;
3. on the wiring direction that branched line is determined, according to the practical topology order of connection, the drafting function that calls successively concrete equipment is drawn out all devices of this branch line.
Compared with prior art, beneficial effect of the present invention is as follows:
1, proposed one-tenth figure thinking and method based on topological layering, at first to topological trunk skeleton structure layout, and then each local part has been become figure, realized that the line chart of the power distribution network that certain scale is above generates automatically;
2, employing based on the placement algorithm of gravitation-repulsion model, has realized the rational deployment of each equipment in line chart in the power distribution network.Simultaneously, by avoiding the Routing Algorithm of overlapping intersection, make the line chart of generation more clear and attractive in appearance;
3, propose to describe the power distribution network topology with the data structure of power station outlet-backbone-T-shaped key node-branch line model on more macroscopical aspect, greatly simplified the quantity of power distribution network topology element when integral layout, for the automatic generation of line chart offers convenience;
4, realized for the first time the automatic generation of the above power distribution network line chart of certain scale, accuracy and promptness that line chart is drawn have greatly been improved, for the distribution operational management provides graphic documentation comprehensively and accurately, economy, reliability and the dirigibility of Operation of Electric Systems have been ensured;
5, the present invention is as the part of Distribution Management System, this system interface is friendly, easy and simple to handle, presented intuitively and accurately the operation of power networks state in visual mode, bring great convenience for the operational management personnel in time understand the operation of power networks situation, greatly improved the intelligent level of power distribution network management.
Certainly, implement arbitrary product of the present invention and might not need to reach simultaneously above-described all advantages.
Description of drawings
Fig. 1 is the power distribution network network topological structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the trunk skeleton structure of power distribution network network topology shown in Figure 1;
Fig. 3 is the automatic product process figure of embodiment of the present invention power distribution network line chart.
Embodiment
The present invention will be further described with specific embodiment by reference to the accompanying drawings in the below.
The invention provides a kind of power distribution network line chart automatic generation method based on topological layering, comprise the following steps:
Delete some relevant devices in this power distribution network topological structure, simplify the power distribution network topological structure;
Obtain the key node of this power distribution network topological structure, generate the trunk skeleton of this power distribution network topological structure;
Based on gravitation-repulsion model, layout is carried out in described key node position, obtain the skeleton structure based on gravitation-repulsion;
Data structure by power station outlet-backbone-T-shaped key node-branch line model is described the power distribution network topological structure;
Complete layout and the automatic mapping of equipment in the power station on the topological structure basis of equipment in the power station;
Respectively described backbone is carried out the zero lap cross wire with described branch line decibel and become figure.
Embodiment
Simplify the power distribution network topological structure
General initial power distribution network topological data comes from production management system, and it is detailed and describe all sidedly each equipment in power distribution network and the annexation between them.But just generate the required data of line chart, only get wherein main topological data and get final product, therefore needed initial power distribution network topological data is simplified before one-tenth figure.
Simplify power distribution network topological structure method as follows:
1. for any two direct wire equipment of series connection, the eigenwerts such as the impedance of one of them wire equipment, length are incorporated in another wire equipment, and deleted simultaneously previous wire equipment, whole process changes original topological connection relation in.
2. for any two switchgears of directly connecting, directly with one of them switchgear deletion, if there is one to be isolating switch in these two switchgears, keep this killer switch equipment and delete another switchgear, do not change original topological connection relation in whole process.
3. be not the branch of load and transformer for the arbitrary topology end, it is the supply line of complete not, and it is nonsensical generating its line chart, so take this end as starting point, delete all devices on this branch road.
Obtaining of power distribution network trunk skeleton structure
Due to power distribution network in-house facility One's name is legion, direct disposable one-tenth figure is difficult to realize.At first native system extracts the trunk skeleton structure (it is defined as power distribution network at the macroscopic aspect topological structure) in first wife's power network topology, for the key node layout in distribution is prepared.
The obtaining step of power distribution network trunk skeleton structure is as follows:
1. hunt out T-shaped node in topology by topological traversal method, and search for to end towards every branched line take this node as starting point on this basis, determine branch lines all in topology according to the definition of aforementioned branches line.
2. with each power station in the power distribution network topology abstract be a dummy node, and the circuit switching that there is topological connection relation in all and this power station is completed obtaining of power station dummy node thus to this node.
3. the T-shaped node of being determined by above two steps and power station dummy node consist of the key node in power distribution network, determine backbone in topology, the true topology that is made of all key nodes and backbone thus by these nodes according to original topological connection relation.
4. the topology of previous step being determined is redescribed with the CIM model, and the backbone with a wire equipment replacement in should topology generates one group of new topological data thus, is the topologically corresponding power distribution network trunk of initial power distribution network skeleton structure.
Power distribution network skeleton structure layout based on gravitation-repulsion model
The layout of power distribution network trunk skeleton structure is to determine each device coordinate position and the final basis that generates line chart, this system determines the coordinate position of key node in former topology thus by determining the layout of power distribution network skeleton based on the gravitation-algorithm of repulsion model.
Power distribution network trunk skeleton structure layout method based on gravitation-repulsion model is as follows:
1. to calculating gravitation between two nodes that direct connection relational is arranged arbitrarily, the size of gravitation is determined by this backbone number of devices to circuit representative between internodal distance and this two nodes.
2. to calculating repulsion between any two nodes in this topology, the repulsion size is inversely proportional to internodal square distance with this, is directly proportional to degree of node.
3. calculate making a concerted effort of the suffered gravitation of each node and repulsion, and change the coordinate position of node by this result, complete thus the layout of power distribution network skeleton structure, determine the coordinate position of key node in former topology.
The data structure of power station outlet-backbone-T-shaped node-branch line model
The equipment that power distribution network is numerous, complicated structure are the key factors that the restriction line chart generates automatically, native system proposes the data structure of a kind of power station outlet-backbone-T-shaped node-branch line model, this structure can described power distribution network on more macroscopical aspect, reduce the number of elements of describing the power distribution network topology, offer convenience for the automatic generation of line chart for this reason.
System realizes that by power station outlet class (OutletLine class), backbone class (MainBranch class), T-shaped node class (OutStaKeyCN class), branch line class (Branch class) attribute description of OutletLine class is as follows to the description of power distribution network topology macroscopic aspect:
class?OutletLine
{
Public string ID; The ID of // OutletLine object
Public string busbarID; The bus that // OutletLine object connects
Public int locationType; The station location marker of // OutletLine object
Public int Type; The type of // OutletLine object
Public MainBranch adjacentMB; The backbone object that // OutletLine object connects
Public ArrayList PSRs; The equipment that comprises in // OutletLine object
Public ArrayList adjacentPSRs; The outside-the station equipment that // OutletLine object connects
Public PointF startPoint; The starting point coordinate of // OutletLine object
Public PointF endPoint; The distal point coordinate of // OutletLine object
Public PointF connectPoint; The tie point coordinate of // OutletLine object
Public float slope; The slope of // OutletLine object association backbone
}；
The attribute description of MainBranch class is as follows:
class?MainBranch
{
Public string ID; The ID of // MainBranch object
Public ArrayList PSRs; The equipment that // MainBranch object comprises
Public ArrayList twoEnds; The ID of //MainBranch object two ends node object
Public PointF startPoint; The starting point coordinate of // MainBranch object
Public PointF endPoint; The end coordinate of // MainBranch object
Public List＜PointF〉ListBreakPoint; The break coordinate of // MainBranch object
}；
The attribute description of OutStaKeyCN class is as follows:
class?OutStaKeyCN
{
Public string ID; The ID of // OutStaKeyCN object
Public ArrayList adjacentPSRs; The equipment of // OutStaKeyCN object association
Public bool y; // OutStaKeyCN object Y direction sign
Public bool _ y; The negative Y direction sign of // OutStaKeyCN object
Public bool x; // OutStaKeyCN object X-direction sign
Public bool _ x; The negative X-direction sign of // OutStaKeyCN object
Public PointF initialPoint; The initial point coordinate of // OutStaKeyCN object
Public List＜MainBranch〉adjacentMBs; The backbone of // OutStaKeyCN object association
}；
The attribute description of Branch class is as follows:
class?Branch
{
Public string ID; The ID of // Branch object
Public string connectCN; The connected node of // Branch object
Public ArrayList PSRs; The equipment that // Branch object comprises
Public int direction=0; The point identification of // Branch object
}
The layout of equipment and automatic mapping in the power station
In power distribution network trunk skeleton aspect, the power station represents with dummy node, and the automatic generation of its wiring diagram need to be in analyzing the power station be carried out on the basis of topological structure.
In the power station, the layout of equipment and automatic mapping method are as follows:
1. to each power station, take bus as the traversal starting point, take on this border, power station as the traversal terminal point, power station outlet class object of corresponding every corresponding generation of outlet, and determine this object part property value in ergodic process.
2. according to the position of backbone in trunk skeleton layout of power station outlet class object association, all outlets in the power station are divided into two groups that outlet direction makes progress and outlet direction is downward; To each group power station outlet, sort in order according to the slope size of the associated backbone of each outlet, thereby determine relative arrangement position between each power station outlet class object.
3. the coordinate of power station dummy node goes out the basis of each coordinate attributes value of line object as calculating the power station after the trunk skeleton layout, determines the starting point coordinate value of power station outlet class object according to the size of spacing between adjacent two power station outlets of setting; The position size occupied according to that group objects that in two groups of power station outlet class objects of 2. middle division, number of objects is many determined the length of every bus.
4. improve other coordinate attributes values in power station outlet class object, and then determine the coordinate position of equipment in each power station, complete layout and the automatic mapping of equipment in the power station.
The zero lap cross wire algorithm of the circuit of Priority-based
For wiring route, native system is thought overlapping and is only occurred between the line segment that is all horizontal wiring and is all vertical wiring, intersects between the line segment that only occurs in horizontal wiring and vertically connect up.
Circuit zero lap cross wire algorithm flow is as follows:
1. the outlet that all backbones are related according to it the most left and rightmost side that whether is positioned at its power station, place goes out line object with the power station and is divided into limit backbone and Fei Bian backbone, and in following wiring process, preferential opposite side backbone connects up.
2. set up a vertical coordinate system, horizontal direction is horizontal ordinate, and vertical direction is ordinate, if the X value of this backbone two-end-point coordinate or Y value are equal, forwards to 6..
The Y value of 3. getting the X value of first end point coordinate and the second end points coordinate consists of the break coordinate of this circuit, and this break is determined respectively vertical wiring and the horizontal wiring of this circuit with the first end points and the second end points.
If two wirings 4. determining in 3. with all wiring topology do not exist overlapping and intersect, forward to 6.; If exist overlapping and intersect, with the Y value of this break to the first end points direction Moving Unit length.
5. detect the Y value of this break this moment whether between the two-end-point Y value, if forward to 3.; If not the position of the mobile any end points of this circuit, increase its wiring scope, then forward to 2..
6. this backbone wiring finishes.
The automatic mapping of basic routing line and branched line
Backbone is to replace with a line facility in wiring process, need the concrete coordinate position of determining each equipment that this backbone comprises in the coordinate position scope that its wiring determines after its wiring finishes, and complete the automatic mapping of backbone according to the size of wiring space; For branched line, also need to determine the coordinate position of each equipment in this branched line after certain wiring direction of determining its connected node, and complete the automatic mapping of branch line according to the topological connection relation between each equipment in this branch line.
The automatic mapping method of backbone and branched line is as follows:
1. according to the topological order of connection of equipment room in backbone, call successively the drafting function of concrete equipment and draw all devices that this backbone comprises in the coordinate position scope that wiring determines.
2. the Nodes that connects at branched line detects its Y direction successively, negative Y direction, X-direction, whether negative X-direction is occupied by circuit, and whether this direction has enough spaces to complete the one-tenth figure of branch line, if this direction can connect up, selected this direction is the one-tenth figure direction of branch line; If can not, detect according to the order of sequence next direction, until find out its wiring direction.
3. on the wiring direction that branched line is determined, according to the practical topology order of connection, the drafting function that calls successively concrete equipment is drawn out all devices of this branch line.
As shown in Figure 1, Fig. 1 is the power distribution network network topological structure schematic diagram of native system, now is described as follows:
What the figure shows is situation after the power distribution network Topological Simplification.According to the syndeton of power distribution network network topology in reality, generally the power distribution network topological structure can be divided into pole line class and cable class two classes.Overhead transmission line class topology branch is more, contains the equipment such as load, pole transformer, as shown in this figure center section; Cable class topology is by linking together by cable between each power station and switchyard, and the outer branched line of not standing is as shown in this figure left half.In power distribution network topological structure with the CIM model representation, every two equipment rooms all link together by CN node (ConnecticityNode), consider the attractive in appearance of schematic diagram and with the consistance of its line chart, only represent the CN node at T-shaped Nodes dot (●) in this figure.As shown in Figure 1, the branch road that directly arrives end along the branch of some dot is the branch line of native system definition.
See also Fig. 2, Fig. 2 is the trunk skeleton structure of power distribution network network topology shown in Figure 1, now is described as follows:
Power station in first wife's power network topology is represented with black blockage (■), leave out branch line from former topology, and with any key node (■ and ● the expression) between topology represent that with a line facility rear topological structure is the trunk skeleton structure of first wife's power network topology.It is the backbone (having come replacement to represent with a line facility in the trunk skeleton structure) of native system definition that circuit between two key nodes of direct connection relational is arranged.This main grid structure of having expressed exactly former topology simple for structure, and topology element quantity has wherein greatly reduced, this is namely ground floor---the trunk skeleton structure in the topological layering that proposes of native system, and it is bridge in the middle of crucial from former topology to the line chart generative process of power distribution network.
See also Fig. 3, Fig. 3 is process flow diagram of the present invention, now is described as follows:
The automatic mapping of the line chart of native system is take the power distribution network topological data of CIM model as the basis, after Topological Simplification, on the basis to topological trunk skeleton structure rational deployment at first, complete again the automatic mapping of backbone and branch line, thereby realize the whole process that the power distribution network line chart generates automatically.Concrete steps are as follows:
The first step: obtain the power distribution network topological data, and all devices is stored in respectively in corresponding Hash table by type, process for the subsequent analysis of topology and prepare.
Second step: travel through whole power distribution network topology, merge series connection wire equipment, merge series connection switchgear, delete imperfect and do not become the branch road of figure necessity, complete the simplification (step 1) of CIM model power distribution network topological structure.
The 3rd step: according to the definition of native system to power distribution network key node, backbone, branch line, extract its trunk skeleton structure from former topology, according to complete the layout (step 2) of key node in first wife's power network topology based on the placement algorithm of gravitation-repulsion model.
The 4th step: take the coordinate position of power station dummy node as the basis, according to the alignment placement method of native system to equipment in the definition of power station outlet and power station, obtain the concrete coordinate position of each equipment in the power station, complete the automatic mapping (step 3) of equipment in the power station.
The 5th step: in the topology of the definition of backbone and step 2 being determined take native system, the key node coordinate position as the basis, is completed the wiring (step 4) of backbone according to the coordinate data at backbone two ends.In wiring process, judge whether to produce between institute's wiring topology and intersect and overlapping phenomenon, if so, by intersection and overlapping is avoided in the translation of wiring break, complete connecting up without juxtaposition to backbone.
The 6th step: according to the coordinate position of key node that branch line connects and the wiring situation on this key node four direction, determine the wiring direction of branched line, determine the coordinate position (step 5) of each equipment in this branch line.
At last, according to the coordinate position of each equipment in the definite power distribution network of above step, call the drawing function of concrete equipment, draw out and on all four each equipment of topological data, complete the automatic mapping of line chart.
The present invention proposes one-tenth figure thinking and method based on topological layering, at first to topological trunk skeleton structure layout, and then each local part is become figure, realized that the line chart of the power distribution network that certain scale is above generates automatically; Employing has realized the rational deployment of each equipment in line chart in the power distribution network based on the placement algorithm of gravitation-repulsion model.Simultaneously, by avoiding the Routing Algorithm of overlapping intersection, make the line chart of generation more clear and attractive in appearance; Also propose to describe the power distribution network topology with the data structure of power station outlet-backbone-T-shaped key node-branch line model on more macroscopical aspect, greatly simplified the quantity of power distribution network topology element when integral layout, for the automatic generation of line chart offers convenience; And realized for the first time the automatic generation of the above power distribution network line chart of certain scale, accuracy and promptness that line chart is drawn have greatly been improved, for the distribution operational management provides graphic documentation comprehensively and accurately, economy, reliability and the dirigibility of Operation of Electric Systems have been ensured; Last the present invention is as the part of Distribution Management System, this system interface is friendly, easy and simple to handle, presented intuitively and accurately the operation of power networks state in visual mode, bring great convenience for the operational management personnel in time understand the operation of power networks situation, greatly improved the intelligent level of power distribution network management.
The above disclosed preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain better principle of the present invention and practical application, thereby under making, the technical field technician can understand and utilize the present invention well.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (7)
1. the power distribution network line chart automatic generation method based on topological layering, is characterized in that, comprises the following steps:
Initial power distribution network topological structure is simplified, made it only comprise main topological structure;
Obtain the key node of the power distribution network topological structure after simplification, generate the trunk skeleton of this power distribution network topological structure;
Based on gravitation-repulsion model, layout is carried out in described key node position, obtain the power distribution network trunk skeleton structure based on gravitation-repulsion;
Data structure by power station outlet-backbone-T-shaped node-branch line model is described the power distribution network topological structure;
Complete layout and the automatic mapping of equipment in the power station on the topological structure basis of equipment in the power station;
Respectively described backbone and described branch line are carried out zero lap cross wire and automatic mapping;
Wherein, defining the station exterior node that is connected with more than two equipment is T-shaped node; Definition is set out by T-shaped node a certain branch until end all the circuit that does not pass through other T-shaped nodes and power station is branch line; The power station is treated to dummy node; Power station dummy node and T-shaped node are defined as in the lump the key node of power distribution network; The circuit that definition connects any two key nodes is backbone; All key nodes and backbone are being followed the topological structure that consists of under former topological connection relation and are being defined as the skeleton structure of power distribution network.
2. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 1, is characterized in that, the described method that initial power distribution network topological structure is simplified comprises:
1) for any two direct wire equipment of series connection, the eigenwerts such as the impedance of one of them wire equipment, length are incorporated in another wire equipment, deleted simultaneously previous wire equipment, whole process changes original topological connection relation in;
2) for any two switchgears of directly connecting, directly with one of them switchgear deletion, if there is one to be isolating switch in these two switchgears, keep this killer switch equipment and delete another switchgear, do not change original topological connection relation in whole process;
3) be not the branch of load and transformer for the arbitrary topology end, take this end as starting point, delete all devices on this branch road.
3. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 2, its spy is, the described key node that obtains the power distribution network topological structure after simplification, the trunk skeleton that generates this power distribution network topological structure specifically comprises the following steps:
1) hunt out T-shaped node in topology by topological traversal method, and search for to end towards every branched line as starting point take this T-shaped node on this basis, determine branch lines all in topological structure;
2) with each power station in the power distribution network topology abstract be a dummy node, and the circuit switching that there is topological connection relation in all and this power station is completed obtaining of power station dummy node thus to this node;
3) the T-shaped node of being determined by above two steps and power station dummy node consist of the key node in power distribution network, determine backbone in topology by these nodes according to original topological connection relation, determine thus the topology of all key nodes and backbone formation;
4) topology of previous step being determined is redescribed with the CIM model, and the backbone with a wire equipment replacement in should topology generates one group of new topological data thus, is the topologically corresponding power distribution network trunk of initial power distribution network skeleton structure.
4. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 3, its spy is, describedly based on gravitation-repulsion model, layout is carried out in described key node position, obtains based on the method for the power distribution network trunk skeleton structure of gravitation-repulsion as follows:
1) to calculating gravitation between two nodes that direct connection relational is arranged arbitrarily, the size of gravitation is determined by this backbone number of devices to circuit representative between internodal distance and this two nodes;
2) to calculating repulsion between any two nodes in this topology, the repulsion size is inversely proportional to internodal square distance with this, is directly proportional to degree of node;
3) calculate making a concerted effort of the suffered gravitation of each node and repulsion, and change the coordinate position of node by this result, complete thus the layout of power distribution network skeleton structure, determine the coordinate position of key node in former topology.
5. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 4, is characterized in that, in described power station, the layout of equipment and automatic mapping method are as follows:
1. to each power station, take bus as the traversal starting point, take on this border, power station as the traversal terminal point, power station outlet class object of corresponding every corresponding generation of outlet, and determine this object part property value in ergodic process;
2. according to the position of backbone in trunk skeleton layout of power station outlet class object association, all outlets in the power station are divided into two groups that outlet direction makes progress and outlet direction is downward; To each group power station outlet, sort in order according to the slope size of the associated backbone of each outlet, thereby determine relative arrangement position between each power station outlet class object;
3. the coordinate of power station dummy node goes out the basis of each coordinate attributes value of line object as calculating the power station after the trunk skeleton layout, determines the starting point coordinate value of power station outlet class object according to the size of spacing between adjacent two power station outlets of setting; The position size occupied according to that group objects that in two groups of power station outlet class objects of 2. middle division, number of objects is many determined the length of every bus;
4. improve other coordinate attributes values in power station outlet class object, and then determine the coordinate position of equipment in each power station, complete layout and the automatic mapping of equipment in the power station.
6. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 1, is characterized in that, circuit zero lap cross wire flow process is as follows:
1. with a backbone related the outlet the most left or backbone rightmost side that is positioned at its power station, place be divided into the limit backbone, all the other are non-limit backbone, in following wiring process, preferential opposite side backbone connects up;
2. set up a rectangular coordinate system, horizontal direction is horizontal ordinate, and vertical direction is ordinate, if the X value of this backbone two-end-point coordinate or Y value are equal, forwards to 6., and the end points of this backbone is respectively the first end points and the second end points;
The Y value of 3. getting the X value of first end point coordinate and the second end points coordinate consists of the break coordinate of this circuit, and this break is determined respectively vertical wiring and the horizontal wiring of this circuit with the first end points and the second end points;
If two wirings 4. determining in 3. with all wiring topology do not exist overlapping and intersect, forward to 6.; If exist overlapping and intersect, with the Y value of this break to the first end points direction Moving Unit length;
5. detect the Y value of this break this moment whether between the two-end-point Y value, if forward to 3.; If not the position of the mobile any end points of this circuit, increase its wiring scope, then forward to 2.;
6. this backbone wiring finishes.
7. the power distribution network line chart automatic generation method based on topological layering as claimed in claim 6, is characterized in that, the automatic mapping method of backbone and branched line is as follows:
1. according to the topological order of connection of equipment room in backbone, call successively the drafting function of concrete equipment and draw all devices that this backbone comprises in the coordinate position scope that wiring determines;
2. the Nodes that connects at branched line detects its Y direction successively, negative Y direction, X-direction, whether negative X-direction is occupied by circuit, and whether this direction has enough spaces to complete the one-tenth figure of branch line, if this direction can connect up, selected this direction is the one-tenth figure direction of branch line; If can not, detect according to the order of sequence next direction, until find out its wiring direction;
3. on the wiring direction that branched line is determined, according to the practical topology order of connection, the drafting function that calls successively concrete equipment is drawn out all devices of this branch line.
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Application publication date: 20130612 Assignee: Jiangsu Jinzhi Technology Co.,Ltd. Assignor: SHANGHAI JIAO TONG University Contract record no.: X2021980000171 Denomination of invention: Automatic generation method of distribution network single line diagram based on topology layering Granted publication date: 20151223 License type: Exclusive License Record date: 20210107 |