CN104573868A - Dividing method and device for first-aid repair grids of power distribution network - Google Patents
Dividing method and device for first-aid repair grids of power distribution network Download PDFInfo
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Abstract
The invention provides a dividing method and a device for first-aid repair grids of a power distribution network. The method comprises the following steps: the division of minimum unit grids is carried out on the power distribution network according to a pre-established grid model; the grid model comprises electric topology associated information among the grids and grid data of each grid; the minimum unit grids are circuit or network distribution devices; a first-aid repair consumption value of each divided minimum unit grid is confirmed; the combination and optimization is carried out on the minimum unit grids with the optimal association relations by a preset iteration mode, and multiple optimal grids are obtained. According to the dividing method for the first-aid repair grids of the power distribution network, the multiple optimal grids are confirmed based on the first-aid repair consumption values of the grids, when the malfunction occurs in the power distribution network, the resource distribution can be conducted on how to carry out the first-aid repair based on the first-aid repair consumption values of optimal minimum unit grids, and the first-aid repair efficiency is improved.
Description
Technical field
The application relates to power domain, particularly a kind of power distribution network repairing Meshing Method and equipment.
Background technology
In operational process, there are some emergency situations thus break down in power distribution network, under emergency case, needs fast finding to arrive failure cause, statistics power distribution network damaged area and maintenance load.
Existing generally division roughly by geographical wiring diagram and basic account rushes to repair region, this rough dividing mode, often can not effectively distinguish fault generation area, for looking up the fault reason, statistics power distribution network damaged area and maintenance load etc. can not effectively be determined, thus have had a strong impact on first-aid repair efficiency.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of power distribution network repairing Meshing Method and equipment, can determine timely and effectively to rush to repair region, promote first-aid repair efficiency.
In order to solve the problem, this application discloses a kind of power distribution network repairing Meshing Method, comprising:
According to the grid model set up in advance, minimum unit stress and strain model is carried out to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
Determine the repairing consumption figures of each the minimum unit grid marked off;
By the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
Above-mentioned method, preferably, also comprises:
According to the incidence relation between described multiple Bestgrid, set up Bestgrid topological relation figure.
Above-mentioned method, preferably, described minimum unit lattice divide and comprise:
Supply line is chosen one by one in described power distribution network;
With the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end;
Minimum unit Grid Example is set up according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.
Above-mentioned method, preferably, describedly determine that the repairing consumption figures of each the minimum unit grid marked off comprises:
Determine the confession electrical properties of the circuit that described minimum unit grid is corresponding or distribution net equipment;
The property value for electrical properties according to described minimum unit grid determines the repairing consumption figures of described minimum unit grid.
Above-mentioned method, preferably, the described iterative manner by presetting, merging optimization is carried out to each minimum unit grid and comprises:
Set up to rush to repair the grid choice set that consumption figures is standard;
Choose arbitrary supply line, with the minimum unit grid of this supply line's end for starting point, the iteration that minimum unit grid repairing consumption figures is carried out in the power supply point direction to this supply line successively adds up;
When cumulative repairing consumption figures and be greater than described grid choice set repairing consumption figures time, each corresponding for cumulative repairing consumption figures minimum unit grid is defined as a new Bestgrid.
Above-mentioned method, preferably, in the process that iteration is cumulative, when there is two or more and merging the minimum unit grid of condition on an equal basis, has the minimum unit grid that grid has same electrical control point in prioritizing selection and choice set.
Above-mentioned method, preferably, in the process that iteration is cumulative, when there is electrical control point in the minimum unit grid of iteration successively, iteration terminates.
A kind of power distribution network repairing stress and strain model equipment, comprising:
Division unit, for carrying out minimum unit stress and strain model according to the grid model set up in advance to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
Determining unit, for determining the repairing consumption figures of each the minimum unit grid marked off;
Obtain unit, for by the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
Above-mentioned equipment, preferably, also comprises:
Set up unit, for according to the incidence relation between described multiple Bestgrid, set up Bestgrid topological relation figure.
Above-mentioned equipment, preferably, described division unit comprises:
Choose subelement, for choosing supply line one by one in described power distribution network;
Scanning subelement, for the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end;
Set up subelement, for setting up minimum unit Grid Example according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.。
Compared with prior art, the application comprises following advantage:
Disclosed in this application a kind of power distribution network repairing Meshing Method, comprising: according to the grid model set up in advance, minimum unit stress and strain model is carried out to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment; Determine the repairing consumption figures of each the minimum unit grid marked off; By the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.In the power distribution network repairing Meshing Method that the application provides, the multiple Bestgrids determined carry out determining based on the repairing consumption figures of grid, when power distribution network breaks down, the repairing consumption figures of each Bestgrid of direct basis can carry out Resourse Distribute to how to rush to repair, improve the efficiency of repairing.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram of a kind of power distribution network repairing Meshing Method of the application;
Fig. 2 is a method detailed process flow diagram of a kind of power distribution network repairing Meshing Method of the application;
Fig. 3 is the structural representation of a kind of power distribution network repairing stress and strain model equipment of the application;
Fig. 4 is a detailed construction schematic diagram of a kind of power distribution network repairing stress and strain model equipment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
In the embodiment of the present application, provide a kind of power distribution network repairing Meshing Method, its process flow diagram as shown in Figure 1, comprising:
Step S101: minimum unit stress and strain model is carried out to power distribution network according to the grid model set up in advance; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
In the embodiment of the present application, described minimum unit lattice divide and comprise: in described power distribution network, choose supply line one by one; With the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end; Minimum unit Grid Example is set up according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.
Step S102: the repairing consumption figures determining each the minimum unit grid marked off;
In the embodiment of the present application, first determine the confession electrical properties of the circuit that described minimum unit grid is corresponding or distribution net equipment; The property value for electrical properties according to described minimum unit grid determines the repairing consumption figures of described minimum unit grid.
Step S103: by the iterative manner preset, carries out merging optimization to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
In the embodiment of the present application, set up to rush to repair the grid choice set that consumption figures is standard; In power distribution network, choose arbitrary supply line, with the minimum unit grid of this supply line's end for starting point, the iteration that minimum unit grid repairing consumption figures is carried out in the power supply point direction to this supply line successively adds up; When cumulative repairing consumption figures and be greater than described grid choice set repairing consumption figures time, each corresponding for cumulative repairing consumption figures minimum unit grid is defined as a new Bestgrid.
In the power distribution network repairing Meshing Method that the application provides, the multiple Bestgrids determined carry out determining based on the repairing consumption figures of grid, when power distribution network breaks down, the repairing consumption figures of each Bestgrid of direct basis can carry out Resourse Distribute to how to rush to repair, improve the efficiency of repairing.
In the power distribution network repairing Meshing Method that the application provides, in the process that iteration is cumulative, when there is two or more and merging the minimum unit grid of condition on an equal basis, in prioritizing selection and choice set, have the minimum unit grid that grid has same electrical control point.
In the process that iteration is cumulative, when there is electrical control point in the minimum unit grid of iteration successively, iteration terminates.
In process flow diagram as shown in Figure 2, in the Meshing Method that the application provides, also comprise:
Step S104: according to the incidence relation between described multiple Bestgrid, sets up Bestgrid topological relation figure.
In following the application, detailed for concrete example is described the Meshing Method that the application provides:
The invention aim of the application is, when there is distribution network failure, need build up an electrical network gridding repairing division figure.This gridding repairing diagram system is the superposition overview display of many cover drawing informations, bottom is that power network basic data (comprises device name, real-time running state, device geographical location and sea level elevation etc.), demixing marking road, water system, communication water factory storage tank etc. are with the public people's livelihood and rush to repair closely-related cartographic information, government organs are by the public information under the disaster that outreaches channel and obtain, topmost layer is grid map data mining platform, (division and the progress of each repairing troop grid are comprised to all information, state display etc.) tabulate statistics display, for repairing, command centre carries out repairing decision-making.
In the application, first set up grid model, grid model needs the key message such as number of devices, geographical relief information, grid repairing required workload providing grid.Need to consider the impact of multiple constraint condition on maintenance amount on the calculating of grid repairing workload.As according to controller switching equipment characteristic, number of devices, running environment, traffic, construction environment in this grid, according to the work quantitative criterion of standardization maintenance, provide the repairing strength requirements of every bar circuit according to cell.Meanwhile, because need the merging considering grid, so need to preserve the electric topology related information between grid in grid model inside and comprise the data of sub-grid.
The division of grid and generation, totally need to complete in two steps, initially take administrative region as big frame, according to the power supply area rough segmentation of normal operating mode distribution line, then on the basis (electric power GIS) analyzing electric network wiring scheme and equipment detailed data, the minimum unit grid comprising minimum distribution net equipment (pole line, cable, transformer, switchyard etc.) is set up successively from power supply point to load end direction to wall scroll 10kV circuit, and carry out instantiation assignment by grid model.Second step will be merge from load end to power supply point direction by electric topology incidence relation by initial mesh for delimiting framework with standardization repairing troop ability to work, then carrying out successive ignition merging to not reaching optimum grid, finally reaching the Optimum Matching of sizing grid and repairing troop ability.
The division methods that the application provides, based on the electric network wiring scheme of authentic and valid concrete equipment details and electric topology.
The rationality of repairing grid model, possesses the attribute information reflecting basic repair message on the one hand, need the attribute information possessing incidence relation between grid (comprising relation of inclusion between electric topology relation and grid) simultaneously, merge to facilitate the iteration of grid.
On the scale-up factor defining and convert grid maintenance capacity of possible factor scope and the reasonable computation formula that affect maintenance of equipment amount in grid, can comparatively Accurate Calibration grid maintenance value to reach one.
Power distribution network can be divided into circuit and controller switching equipment, and wherein circuit is divided into again overhead transmission line and cable, and controller switching equipment has distribution transforming, switch cubicle etc.The minimum unit grid of distribution can be divided into circuit and distribution net equipment two type.A minimum unit stress and strain model is according to being segmentation for possessing electric cut-off point, and as the wire of a strain section length of pole line, have one section of cable etc. of joint, distribution net equipment take individual equipment as minimum unit grid.Final repairing grid is the merging combination on the basis of minimum unit grid.
In the division methods that the application provides, set up grid model, all grids only have a kind of model, just distinguish minimum unit grid and final grid, simultaneously the difference of equipment contained by grid, and the correlation attribute value of grid is distinguished to some extent.
Grid property:
Grid numbering (ID): being used for only table knows a grid
Trellis-type: minimum unit grid is owing to being single equipment, therefore types value is " overhead transmission line ", " cable ", " switch ", " switch cubicle ", " distribution transforming ", and the trellis-type after final iteration merging is " comprehensively ").
Number of devices in grid: minimum unit number of grid value is " 1 ", other grids are by contained number of devices value.
Grid maintenance consumes reference value: minimum unit grid carries out definite value by contained device type, and other grids are the comprehensive of contained grid reference value.Can consult and can obtain by query criteriaization repairing handbook, current exemplary apparatus is determined based on experience value: fuse switch (disconnecting link) is 2 people * 25 minutes, lightning arrester is 2 people * 30 minutes, on-pole switch is 2 people * 25 minutes, switchyard interval, low pressure feeder pillar are 5 people * 40 minutes, electric pole (comprising one grade of circuit) is 10 people * 40 minutes, transformer (comprising transformer accessory to install) is 10 people * 40 minutes, cable end 6 people * 40 minutes, low-voltage meter box (comprising low-voltage circuit) is 1 people * 20 minutes.
Maintenance difficulty correction factor (K), the environmental factors such as the difficulty that the investigation mainly caused according to device type and maintenance difficulty, the strong degree of equipment self, equipment place territorial environment bring to maintenance and substance use convert the correction factor of actual maintenance consumption figures.This coefficient adopts distribution major repair project quantities calculation quota at present.Landform coefficient is to the correction of maintenance capacity, and Plain is 1, and urban district, hills are 1.2, and general mountain region, mire coefficient are 1.6.For the grid after merging, default value is 1.
Final maintenance consumption figures=basic maintenance consumption figures * K1*K2*K3..., wherein k1k2k3... corresponding various correction factor value respectively, interval is 0,1-1.9.
Equipment electrical control point is to indicate maintenance grid equipment higher level switch tool etc., as the basic foundation of recombinating to mesh update.Because according to reality maintenance situation, same electrical control point (switch, branch's crane etc.) or grid can merge carry out maintenance in separate ranges after pulling open higher level's opertaing device.
Repairing index: after final stress and strain model, according to disaster-stricken actual conditions and external information input, evaluates grid repairing importance and priority, instructs follow-up repairing arrangement and strategy.The priority that numerical value is high is higher.After delimitation grid, giving tacit consent to this value is all 1.
Comprise sub-grid collection: for storing the sub-grid number of merging in grid Loop partition process, minimum unit lattice are defaulted as sky
Grid responsible official: the operations staff etc. of equipment in daily grid, is used to guide the timely identity equipment of repairing troop.
Grid load character: the character of user in grid, as hospital, communication center, pumping for water pump station etc.
Gridding information remarks: or may be used for marking the outstanding information represented of grid Essential Geomorphic.
Power distribution network repairing grid iteration optimizing based on multi-constraint condition divides, and is totally divided into two stages, first sets up minimum unit grid, and set toward grid repairing consumption figures according to multifactor control.Then root repairing troop ability is iteratively repeatedly carried out Optimum Matching and determines final grid.
Set up minimum unit grid, rely on power grid GIS system figure and electric topology relation, scan successively to power supply end from power supply point in units of a line powering scope, set up minimum grid example with minimum unit stress and strain model principle, and grid is copied.By this step, the minimum grid division figure that can show maintenance consumption figures can be set up.The selection of maintenance difficulty correction factor: distribution net equipment is divided into circuit and equipment.Wherein, circuit can be divided into cable and pole line, and due to its paving mode and cost, the investigation difficulty in disaster-stricken situation etc. are inconsistent, therefore its maintenance consumption figures distinguishes different needs.Equipment nature also determines maintenance difficulty correction factor, and as solid insulation cabinet, can to adapt to floods environment non-maintaining, and its correction factor is " 0 ".New residential quarter, city can be set as 1 (environment affects without direct maintenance).
According to standardization repairing troop maintainability, consider that geography, the superior and the subordinate's electrical relation etc. are carried out successive ignition and delimited Bestgrid.
Standardization repairing troop maintainability refers to the maintainability possessed by standardization repairing troop.The final division of grid sets up new grid to carry out the mode successive ignition that minimum unit grid carries out merger and reorganization, and after merging, repairing value summation just in time should mate the maintainability of a standardization repairing troop.
Loop partition process is totally according to maintenance actual demand and repairing security consideration, divide from electrical network end to power supply point at every turn, perform the principle that namely first fit determines grid, then second time divides again to the unexcellent grid of residue, and iteration like this is back and forth until all sizing grids are all optimum.The restriction factor divided is whether the repairing maintainability of troop and merged grid have crossed over electrical network grid at the corresponding levels.
Loop partition concrete grammar is first set up the choice set that a maintenance consumption figures is standardization repairing troop maintainability, the grid choosing arbitrary line end is put into choice set and calculates total consumption figures, if be less than the consumption figures of choice set, then continue to the next minimum unit of power supply point set direction, if until add current grid consumption figures by be greater than choice set consumption figures till.Can merged grid as there is two or more equal conditions, be so in being preferred under an electrical control point with existing grid in choice set.Meanwhile, if the grid that the next one adds is an electrical control point (as switch, disconnecting link etc.), so choice set also will stop.Then same from other are in end grid step, after all current end grids are all performed merging, the small grid not mating repairing ability to residue starts second and takes turns iteration restructuring, direction is also towards power supply point direction, and the foundation simultaneously selected has same higher level's electrical control point.The judgment basis that iteration optimizing terminates be current once divided rear all grids merge (grid consumption figures can only unidirectionally increase progressively) or say reach Bestgrid divide.
To rush to repair Meshing Method corresponding with a kind of power distribution network that the application Fig. 1 provides, and the embodiment of the present application additionally provides a kind of power distribution network repairing stress and strain model equipment, and its structural representation, as shown in Figure 3, comprising:
Division unit 201, for carrying out minimum unit stress and strain model according to the grid model set up in advance to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
Determining unit 202, for determining the repairing consumption figures of each the minimum unit grid marked off;
Obtain unit 203, for by the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
As shown in Figure 4, show in the application, an a kind of detailed construction schematic diagram of power distribution network repairing stress and strain model equipment, also comprises in described equipment:
Set up unit 204, for according to the incidence relation between described multiple Bestgrid, set up Bestgrid topological relation figure.
In described equipment, described division unit 201 comprises:
Choose subelement 205, for choosing supply line one by one in described power distribution network;
Scanning subelement 206, for the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end;
Set up subelement 207, for setting up minimum unit Grid Example according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add required general hardware platform by software and realizes.Based on such understanding, the technical scheme of the application can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the application or embodiment.
Meshing Method rushed to repair by a kind of power distribution network provided the application above and equipment is described in detail, apply specific case herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (10)
1. a power distribution network repairing Meshing Method, is characterized in that, comprising:
According to the grid model set up in advance, minimum unit stress and strain model is carried out to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
Determine the repairing consumption figures of each the minimum unit grid marked off;
By the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
2. method according to claim 1, is characterized in that, also comprises:
According to the incidence relation between described multiple Bestgrid, set up Bestgrid topological relation figure.
3. method according to claim 1, is characterized in that, described minimum unit lattice divide and comprise:
Supply line is chosen one by one in described power distribution network;
With the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end;
Minimum unit Grid Example is set up according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.
4. method according to claim 1, is characterized in that, describedly determines that the repairing consumption figures of each the minimum unit grid marked off comprises:
Determine the confession electrical properties of the circuit that described minimum unit grid is corresponding or distribution net equipment;
The property value for electrical properties according to described minimum unit grid determines the repairing consumption figures of described minimum unit grid.
5. method according to claim 1, is characterized in that, the described iterative manner by presetting, and carries out merging optimization comprise each minimum unit grid:
Set up to rush to repair the grid choice set that consumption figures is standard;
Choose arbitrary supply line, with the minimum unit grid of this supply line's end for starting point, the iteration that minimum unit grid repairing consumption figures is carried out in the power supply point direction to this supply line successively adds up;
When cumulative repairing consumption figures and be greater than described grid choice set repairing consumption figures time, each corresponding for cumulative repairing consumption figures minimum unit grid is defined as a new Bestgrid.
6. method according to claim 5, it is characterized in that, in the process that iteration is cumulative, when there is two or more and merging the minimum unit grid of condition on an equal basis, in prioritizing selection and choice set, have the minimum unit grid that grid has same electrical control point.
7. method according to claim 5, is characterized in that, in the process that iteration is cumulative, when there is electrical control point in the minimum unit grid of iteration successively, iteration terminates.
8. a power distribution network repairing stress and strain model equipment, is characterized in that, comprising:
Division unit, for carrying out minimum unit stress and strain model according to the grid model set up in advance to power distribution network; The grid data of electric topology related information between grid and each grid is comprised in described network model; Described minimum unit grid is circuit or distribution net equipment;
Determining unit, for determining the repairing consumption figures of each the minimum unit grid marked off;
Obtain unit, for by the iterative manner preset, merging optimization is carried out to each minimum unit grid with optimum incidence relation, obtains multiple Bestgrid.
9. equipment according to claim 8, is characterized in that, also comprises:
Set up unit, for according to the incidence relation between described multiple Bestgrid, set up Bestgrid topological relation figure.
10. equipment according to claim 8, is characterized in that, described division unit comprises:
Choose subelement, for choosing supply line one by one in described power distribution network;
Scanning subelement, for the service area of each supply line for base unit, scan successively from the power supply point of supply line to power supply end;
Set up subelement, for setting up minimum unit Grid Example according to minimum unit stress and strain model rule; Described minimum unit stress and strain model rule is each minimum unit grid is supply line or distribution net equipment.
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