CN104361534A - Transformer substation site selection method capable of achieving accurate positioning - Google Patents
Transformer substation site selection method capable of achieving accurate positioning Download PDFInfo
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- CN104361534A CN104361534A CN201410671715.XA CN201410671715A CN104361534A CN 104361534 A CN104361534 A CN 104361534A CN 201410671715 A CN201410671715 A CN 201410671715A CN 104361534 A CN104361534 A CN 104361534A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention provides a transformer substation site selection method capable of achieving accurate positioning and belongs to the technical field of transformer substation site selection. In the transformer substation site selection method capable of achieving accurate positioning, the influence of geographical factors and electrical load are fully considered. According to the technical scheme, the transformer substation site selection method capable of achieving accurate positioning comprises the steps of determining the number of transformer substations to be constructed newly according to regulatory plans of areas where proposed transformer substations are located and existing transformer substation information, utilizing Voronoi diagram hollow circle characteristics to calculate the size of hollow circle load, finding initial substation sites, then determining the action ranges of newly constructed substation sites according to the established initial substation sites, determining load center and adjusting the positions of the newly constructed substation sites according to the load positions and sizes of the newly constructed substation sites, and performing repeated iteration to complete transformer substation site selection and positioning. The transformer substation site selection method capable of achieving accurate positioning is suitable for the field of transformer substation site selection.
Description
Technical field
A kind of pinpoint substation site selection method of the present invention, belongs to the technical field that substation location is selected.
Background technology
In planning for the expansion of power grids, transformer station is as the important step connecting high, normal, basic voltage electric grid, there are obvious geospatial feature and electric characteristic in its location, the selection of transformer station position directly affect the position of Medial & Low Voltage Power Network power supply, circuit walk footpath, the structure of grid, the investment of electrical network and its economy run and power supply reliability, along with growth and the change of power supply network shelf structure of aging, the load of power equipment, the power supply area of transformer station is caused to change; Therefore, reasonably determine the best power supply area of existing transformer station and newly-increased transformer station, have very important meaning; The addressing of traditional transformer station is generally first count load breach, consider original transformer station layout again, newly-built substation location is finally determined through manual analysis, this method needs to rely on micro-judgment to determine site, not only workload is large, time cycle is long, and is difficult to ensure that selected site is optimum site.
Along with the development of computer technology and optimum theory, normal employing sets up unit Continuous Location at present, how far the method for the mathematical model such as Continuous Location solves traditional addressing and manually measures greatly, cycle is long, the coarse problem of addressing, but these class methods also bring new technical matters, first, the mathematical model set up is more complicated, computing scale is larger, often there is " dimension calamity " problem, secondly, these mathematical models are mainly with construction investment, operating cost is minimum target, only consider electric system constraint condition, do not consider actual geographical environment constraint, cause the newly-built substation site selected, operational feasibility diminishes.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical matters to be solved is for providing a kind of pinpoint substation site selection method taking into full account geographic factor impact and power load size.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of pinpoint substation site selection method, comprises the following steps:
(1.1) be organized into GIS form to planning to build substation's possession district regulatory plan, and according to the information of existing transformer station and the newly-built transformer substation voltage grade of planning, determine the quantity N treating newly-built transformer station;
(1.2) according to the site of existing transformer station, Voronoi figure is generated;
(1.3) geographical location information residing for Voronoi figure summit, carries out initial location screening, deletes the summit being not suitable in Voronoi figure building a station;
(1.4) open circles load volume size and the constraint of neighbor stations minor increment is utilized to find out the N number of initial location treating newly-built transformer station;
(1.5) according to existing transformer station and initial location, regenerate Voronoi figure, determine the reach of initial location;
(1.6) according to treating on-load position, newly-built substation, size, find out load center, and adjust initial location position according to the position of load center;
(1.7) judge the change of initial location position, whether be less than default accuracy requirement, if judged result is "Yes", then addressing terminates, if judged result is "No", then enters step (1.5).
The process finding out N number of initial location in described step (1.4) is as follows:
(1.4.1) to meeting the load point of surrounding in the open circles of M the vertex correspondence of building a station in Voronoi figure, carry out the summation of load total amount respectively, and poor respectively by 1/3 of three the built transformer station's total volumies in the load total amount in M open circles and open circles, obtain M difference amount;
(1.4.2) carry out difference amount to M summit to sort from big to small, and be recorded as Q1, Q2 ... Qm;
(1.4.3) according to difference amount size, select Voronoi figure summit Qi successively, wherein i is the numerical value of 1 to m;
(1.4.4) judge whether summit Qi meets minor increment constraint, if judged result is "Yes", then enters step (1.4.5), if judged result is "No", then gets back to step (1.4.3) and select next summit;
(1.4.5) the summit Qi of minor increment constraint will be met as initial location;
(1.4.6) whether the initial location quantity that judgement has been selected is N, if judged result is "Yes", then initial location addressing terminates, if judged result is "No", then enters step (1.4.7);
(1.4.7) according to existing substation location and selected initial location regenerate Voronoi figure;
(1.4.8) to the Voronoi figure that step (1.4.7) regenerates, enter step (1.4.1) and carry out mathematic interpolation.
In described step (1.3), the screening process of geographical site is as follows: first, utilize the GIS map that step (1.1) has been set up, judge whether Voronoi figure summit falls into the plot that can not build a station successively, if judged result is "No", then in Voronoi figure, retain this summit, if judged result is "Yes", then directly delete this summit; Then, judge whether the Voronoi summit quantity being applicable to building a station is greater than the quantity N needing newly-built transformer station, if judged result is "Yes", then enter step (1.4), if judged result is "No", then regenerate Voronoi figure, rejudge Voronoi figure summit and whether fall into the plot being not suitable for building a station, until the Voronoi summit quantity filtered out is greater than the quantity N needing newly-built transformer station.
Determine to need the process of newly-built transformer station quantity N in described step (1.1) as follows: first, become GIS form to planning to build possession district of substation regulatory plan data by readjustment of field plot, and assignment is carried out to each plot category attribute; Then, the data provided according to power department and related specifications, determine the power load density of each land used electricity type and calculate the power load amount in each plot; Last basis plans to build the electric pressure that possession district of substation has transformer station's total volume, newly-built transformer station, calculates the quantity N needing newly-built transformer station.
The present invention compared with prior art has following beneficial effect:
The pinpoint substation site selection method of one provided by the invention, in substation site selection process, has carried out geography information filtration to the position being not suitable for building a station, and improves rationality and the exploitativeness of selected newly-built substation location; In the selection course of initial location, apply open circles payload and minor increment constraint condition, and according to on-load position, newly-built substation, size, the position of using iterative algorithm to initial location adjusts, such that substation location registration, radius of electricity supply are reasonable, economy is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is the workflow diagram that step of the present invention (1.1) determines newly-built transformer station quantity;
Fig. 3 is the workflow diagram that step of the present invention (1.3) finds out N number of initial location.
Embodiment
As shown in Figure 1, a kind of pinpoint substation site selection method of the present invention, comprises the following step performed in order:
(1.1) be organized into GIS form to planning to build substation's possession district regulatory plan, and according to the information of existing transformer station and the newly-built transformer substation voltage grade of planning, determine the quantity N treating newly-built transformer station;
(1.2) according to the site of existing transformer station, Voronoi figure is generated;
(1.3) geographical location information residing for Voronoi figure summit, carries out initial location screening, deletes the summit being not suitable in Voronoi figure building a station;
(1.4) open circles load volume size and the constraint of neighbor stations minor increment is utilized to find out the N number of initial location treating newly-built transformer station;
(1.5) according to existing transformer station and initial location, regenerate Voronoi figure, determine the reach of initial location;
(1.6) according to treating on-load position, newly-built substation, size, find out load center, and adjust initial location position according to the position of load center;
(1.7) judge the change of initial location position, whether be less than default accuracy requirement, if judged result is "Yes", then addressing terminates, if judged result is "No", then enters step (1.5).
As shown in Figure 2, in the present embodiment, determine that the process of the transformer station quantity N that needs are newly-built is: first, become GIS form to planning to build possession district of substation regulatory plan data by readjustment of field plot, and assignment is carried out to each plot category attribute; Then, the data provided according to power department and related specifications, determine the power load density of each land used electricity type and calculate the power load amount in each plot, last basis plans to build the electric pressure that possession district of substation has transformer station's total volume, newly-built transformer station, calculates the quantity N needing newly-built transformer station.
As shown in Figure 3, in the present embodiment step (1.3), according to the geographical location information on Voronoi figure summit, the process of carrying out initial location screening is: first, utilize the GIS map that step (1.1) has been set up, spend gently from physical features, the factor such as land use situation and special area, judge whether Voronoi figure summit falls into the plot being not suitable for building a station successively, if judged result is "No", then in Voronoi figure, retain this summit, if judged result is "Yes", then directly delete this summit; Then, judge whether the Voronoi summit quantity being applicable to building a station is greater than the quantity N needing newly-built transformer station, if judged result is "Yes", then enter step (1.4), if judged result is "No", then regenerate Voronoi figure, using iterative algorithm, until the number of vertex filtering out Voronoi is greater than the quantity N needing newly-built transformer station; Particularly, the above-mentioned plot being not suitable for building a station is specially: be in inflammable, and explosive and with serious pollution plot, is in the plot under flood control standard, is in the plot of Earthquake Fault Zone and unfavorable geology, and this build a station after plot that contiguous facility is had an impact.
Further, the process finding out N number of initial location in step (1.4) is:
(1.4.1) to meeting the load point of surrounding in the open circles of M the vertex correspondence of building a station in Voronoi figure, carry out the summation of load total amount respectively, and poor respectively by 1/3 of three the built transformer station's total volumies in the load total amount in M open circles and open circles, obtain M difference amount;
(1.4.2) carry out difference amount to M summit to sort from big to small, and be recorded as Q1, Q2 ... Qm;
(1.4.3) according to difference amount size, select Voronoi figure summit Qi successively, wherein i is the numerical value of 1 to m;
(1.4.4) judge whether summit Qi meets minor increment constraint, if judged result is "Yes", then enters step (1.4.5), if judged result is "No", then gets back to step (1.4.3) and select next summit;
(1.4.5) the summit Qi of minor increment constraint will be met as initial location;
(1.4.6) whether the initial location quantity that judgement has been selected is N, if judged result is "Yes", then initial location addressing terminates, if judged result is "No", then enters step (1.4.7);
(1.4.7) according to existing substation location and selected initial location regenerate Voronoi figure;
(1.4.8) to the Voronoi figure that 1.4.7 regenerates, enter step (1.4.1) and carry out mathematic interpolation.
The invention provides a kind of pinpoint substation site selection method, the method has carried out geography information filtration to the position being not suitable for building a station, and apply open circles payload and minor increment constraint condition has carried out initial location screening to newly-built transformer station position, by to on-load position, substation, size, the position of initial location is adjusted, make selected substation location registration, radius of electricity supply is reasonable, economy is high, exploitativeness is strong, there is substantive distinguishing features and progress, by reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (4)
1. a pinpoint substation site selection method, is characterized in that, comprise the following steps:
(1.1) be organized into GIS form to planning to build substation's possession district regulatory plan, and according to the information of existing transformer station and the newly-built transformer substation voltage grade of planning, determine the quantity N treating newly-built transformer station;
(1.2) according to the site of existing transformer station, Voronoi figure is generated;
(1.3) geographical location information residing for Voronoi figure summit, carries out initial location screening, deletes the summit being not suitable in Voronoi figure building a station;
(1.4) open circles load volume size and the constraint of neighbor stations minor increment is utilized to find out the N number of initial location treating newly-built transformer station;
(1.5) according to existing transformer station and initial location, regenerate Voronoi figure, determine the reach of initial location;
(1.6) according to treating on-load position, newly-built substation, size, find out load center, and adjust initial location position according to the position of load center;
(1.7) judge the change of initial location position, whether be less than default accuracy requirement, if judged result is "Yes", then addressing terminates, if judged result is "No", then enters step (1.5).
2. the pinpoint substation site selection method of one according to claim 1, is characterized in that: the process finding out N number of initial location in described step (1.4) is as follows:
(1.4.1) to meeting the load point of surrounding in the open circles of M the vertex correspondence of building a station in Voronoi figure, carry out the summation of load total amount respectively, and poor respectively by 1/3 of three the built transformer station's total volumies in the load total amount in M open circles and open circles, obtain M difference amount;
(1.4.2) carry out difference amount to M summit to sort from big to small, and be recorded as Q1, Q2 ... Qm;
(1.4.3) according to difference amount size, select Voronoi figure summit Qi successively, wherein i is the numerical value of 1 to m;
(1.4.4) judge whether summit Qi meets minor increment constraint, if judged result is "Yes", then enters step (1.4.5), if judged result is "No", then gets back to step (1.4.3) and select next summit;
(1.4.5) the summit Qi of minor increment constraint will be met as initial location;
(1.4.6) whether the initial location quantity that judgement has been selected is N, if judged result is "Yes", then initial location addressing terminates, if judged result is "No", then enters step (1.4.7);
(1.4.7) according to existing substation location and selected initial location regenerate Voronoi figure;
(1.4.8) to the Voronoi figure that step (1.4.7) regenerates, enter step (1.4.1) and carry out mathematic interpolation.
3. according to the pinpoint substation site selection method of the one described in claim 1, it is characterized in that: in described step (1.3), the screening process of geographical site is as follows:
First, the GIS map utilizing step (1.1) to set up, judges whether Voronoi figure summit falls into the plot that can not build a station successively, if judged result is "No", then in Voronoi figure, retain this summit, if judged result is "Yes", then directly delete this summit;
Then, judge whether the Voronoi summit quantity being applicable to building a station is greater than the quantity N needing newly-built transformer station, if judged result is "Yes", then enter step (1.4), if judged result is "No", then regenerate Voronoi figure, rejudge Voronoi figure summit and whether fall into the plot being not suitable for building a station, until the Voronoi summit quantity filtered out is greater than the quantity N needing newly-built transformer station.
4. the pinpoint substation site selection method of one according to claim 1, is characterized in that: determine in described step (1.1) that the process of the transformer station quantity N that needs are newly-built is as follows:
First, become GIS form to planning to build possession district of substation regulatory plan data by readjustment of field plot, and assignment is carried out to each plot category attribute;
Then, the data provided according to power department and related specifications, determine the power load density of each land used electricity type and calculate the power load amount in each plot;
Last basis plans to build the electric pressure that possession district of substation has transformer station's total volume, newly-built transformer station, calculates the quantity N needing newly-built transformer station.
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| CN201410671715.XA CN104361534A (en) | 2014-11-21 | 2014-11-21 | Transformer substation site selection method capable of achieving accurate positioning |
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| CN201410671715.XA CN104361534A (en) | 2014-11-21 | 2014-11-21 | Transformer substation site selection method capable of achieving accurate positioning |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853366A (en) * | 2015-05-14 | 2015-08-19 | 国家电网公司 | Station site selection method in power wireless private network |
| CN104881821A (en) * | 2015-06-15 | 2015-09-02 | 国网山东东平县供电公司 | Transformer station site selection method base on fuzzy grey correlation projection method |
| CN107766984A (en) * | 2017-10-27 | 2018-03-06 | 郑州云海信息技术有限公司 | The optimal addressing system and method for businessman based on cloud computing |
| CN110136184A (en) * | 2018-02-02 | 2019-08-16 | 云南电网有限责任公司保山供电局 | A method of it is modeled using oblique photograph and carries out substation site selection |
-
2014
- 2014-11-21 CN CN201410671715.XA patent/CN104361534A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 朱向前: "电力GSI及基于V图的变电站选址的研究", 《中国优秀硕士学位论文全文库工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853366A (en) * | 2015-05-14 | 2015-08-19 | 国家电网公司 | Station site selection method in power wireless private network |
| CN104853366B (en) * | 2015-05-14 | 2018-04-03 | 国家电网公司 | A kind of siting of station method in electric power wireless private network |
| CN104881821A (en) * | 2015-06-15 | 2015-09-02 | 国网山东东平县供电公司 | Transformer station site selection method base on fuzzy grey correlation projection method |
| CN107766984A (en) * | 2017-10-27 | 2018-03-06 | 郑州云海信息技术有限公司 | The optimal addressing system and method for businessman based on cloud computing |
| CN110136184A (en) * | 2018-02-02 | 2019-08-16 | 云南电网有限责任公司保山供电局 | A method of it is modeled using oblique photograph and carries out substation site selection |
| CN110136184B (en) * | 2018-02-02 | 2022-11-29 | 云南电网有限责任公司保山供电局 | Method for site selection of transformer substation by oblique photography modeling |
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Application publication date: 20150218 |