CN104143019A - Automatic drawing method for iced covered area map of power transmission line - Google Patents
Automatic drawing method for iced covered area map of power transmission line Download PDFInfo
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- CN104143019A CN104143019A CN201410326864.2A CN201410326864A CN104143019A CN 104143019 A CN104143019 A CN 104143019A CN 201410326864 A CN201410326864 A CN 201410326864A CN 104143019 A CN104143019 A CN 104143019A
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Abstract
The invention discloses an automatic drawing method for an iced covered area map of a power transmission line. The main content of the automatic drawing method is to automatically generate the ice covered area map of the power transmission line by adopting processes such as a GIS (Geographic Information System) raster calculator, reclassification and raster-to-polygon conversion on the basis of an ice thickness prediction model provided by meteorological bureau and DEM (Digital Elevation Mode) data provided by surveying and mapping bureau. The method provides a means to realize the automatic drawing of the ice covered area map, the ice coverage distribution situation around power transmission and transformation facilities can be accurately reflected by the drawn ice covered area map, all areas are covered, and a basis is provided for construction cost evaluation of newly constructed power transmission line engineering and ice-proof reconstruction of constructed lines.
Description
Technical field
The present invention relates to a kind of power system transmission line icing areal map automatic drafting method; Especially considered hyposographic features.
Background technology
In recent years, the situation showed increased of transmission line of electricity generation icing disaster, once even wire breaking and tower falling accident of the serious icing of circuit can cause large-area power failure, affects power network safety operation.Icing areal map is the foundation that Anti-icing of Transmission Lines Design & reform is instructed in electric system, therefore, the automatic Fast Drawing of icing areal map has been become to current power transmission circuit and be badly in need of the critical problem solving.
The drawing of icing areal map is the important component part that raising electrical network is resisted icing accident ability, can instruct Anti-icing of Transmission Lines Design & reform for grid company.Icing areal map is based on meteorological and geographic factor and artificial operating experience artificial drafting on software platform at present.The shortcoming of this method for drafting maximum is that Consideration is too many, there is no the relation between quantization factor, must rely on artificial operating experience, can not realize robotization and draw.
Summary of the invention
Object of the present invention be just to overcome existing drafting icing region strive for survival shortcoming and defect, a kind of powerline ice-covering areal map method for drafting of high effective quantization is provided, draw icing areal map in conjunction with the subregion relational model between ice thickness and digital elevation, for newly-built work transmission line cost evaluation and the anti-icing transformation of built circuit provide foundation.
Order of the present invention is achieved in that
Powerline ice-covering areal map automatic drafting method, is characterized in that carrying out according to the following steps:
((1) digital elevation (DEM) data that provide of Bureau of Surveying and Mapping is provided and is collected one's respective area boundary graph layer file from mapping, meteorological department; (2) meteorological data by each region and the combinatory analysis of icing observation data, calculates in zones of different the relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness and digital elevation; (3) the digital elevation figure in prior Fen Hao district is imported in arcgis software, and base map taking zone boundary figure layer file as icing areal map, calculate region-wide ice thickness according to the relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness in zones of different and digital elevation by grid counter; (4) at arcgis software, the ice thickness calculating is carried out to reclassification, make to meet the ice formation grading standard of power industry, then grid map is carried out to grid and turn face, thereby obtain ice formation distribution plan.
The relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness and digital elevation is as follows in zones of different:
One, West
30 years one chance: Bh=0.77*exp (0.0015*h)
50 years one chance: Bh=0.88*exp (0.0015*h)
100 years one chance: Bh=1.03*exp (0.0015*h)
Two, middle district
30 years one chance: Bh=1.34*exp (0.00145*h)
50 years one chance: Bh=1.48*exp (0.00145*h)
100 years one chance: Bh=1.67*exp (0.00145*h)
Three, East
30 years one chance: Bh=2.41*exp (0.0014*h)
50 years one chance: Bh=2.86*exp (0.0014*h)
100 years one chance: Bh=3.47*exp (0.0014*h)
Four, mixed zone, Chinese and Western
30 years one chance: Bh=(0.77*exp (0.0015*h)+1.34*exp (0.00145*h))/2
50 years one chance: Bh=(0.88*exp (0.0015*h)+1.48*exp (0.00145*h))/2
100 years one chance: Bh=(1.03*exp (0.0015*h)+1.67*exp (0.00145*h))/2.
Bh represents ice thickness, and h represents digital elevation.
Geographic Information System (Geographic Information System, be called for short GIS), the computer system being formed by hardware, software and spatial data, can support the obtaining of geographical spatial data, manage, operate, analysis, modelling and demonstration, to solve the complicated problem such as planning and management.The application of GIS is very wide, as: the examination of natural resources and management, region and city planning and management, environmental monitoring, vehicle operating and road selection and electric system etc., arcgis is a kind of disclosed GIS business software platform.
The present invention has following advantages and good effect:
1, draw icing areal map based on partition model and digital elevation, can reflect exactly the space-time rule of powerline ice-covering situation, cover All Ranges;
2, there is standardization and draw flow process, easy to utilize;
3, adopt digital elevation as input data, method itself also can be cured as computer program algoritic module, and accuracy is high, easy to use;
4, be applicable to grid company and instruct the work of Anti-icing of Transmission Lines anti-ice.
Embodiment
Powerline ice-covering areal map is drawn and is divided into Data Collection and mapping two parts, and mapping software is taking year arcgis as example.
1, Data Collection
Desired data is the Administrative boundaries figure layer file of digital elevation and this area.
1.1 Bureau of Surveying and Mapping's digital elevations (DEM)
The digital elevation elevation information of collecting from Bureau of Surveying and Mapping.
1.2 one's respective area boundary graph layer file
Collect one's respective area boundary graph layer file from mapping, meteorological department, as the base map of icing areal map.
2, mapping
2.1 ice thickness are calculated
In arcgis software, load digital elevation (DEM) figure that subregion is good, then call arcgis grid counter instrument, call corresponding formula for different regions and different reoccurrence period:
1. West
30 years one chance: Bh=0.77*exp (0.0015*h), Bh represents ice thickness, h represents elevation, lower same
50 years one chance: Bh=0.88*exp (0.0015*h)
100 years one chance: Bh=1.03*exp (0.0015*h)
2.Zhong district
30 years one chance: Bh=1.34*exp (0.00145*h)
50 years one chance: Bh=1.48*exp (0.00145*h)
100 years one chance: Bh=1.67*exp (0.00145*h)
3. East
30 years one chance: Bh=2.41*exp (0.0014*h)
50 years one chance: Bh=2.86*exp (0.0014*h)
100 years one chance: Bh=3.47*exp (0.0014*h)
4. mixed zone, Chinese and Western
30 years one chance: Bh=(0.77*exp (0.0015*h)+1.34*exp (0.00145*h))/2
50 years one chance: Bh=(0.88*exp (0.0015*h)+1.48*exp (0.00145*h))/2
100 years one chance: Bh=(1.03*exp (0.0015*h)+1.67*exp (0.00145*h))/2
Calculate ice thickness, repetition All Ranges obtains the ice thickness data of Zone Full
2.2 reclassification
The ice thickness grid map that step 2.1 is generated calls arcgis grid reclassification instrument and carries out grid reclassification, can meet the division requirement of electric system to ice thickness grade.
2.3 grids turn face
The reclassification grid map that step 2.2 is generated is carried out grid and is turned face operation, generates last icing areal map.
Claims (2)
1. powerline ice-covering areal map automatic drafting method, is characterized in that carrying out according to the following steps:
(1) collect digital elevation (DEM) data that provide of Bureau of Surveying and Mapping and collect one's respective area boundary graph layer file from mapping, meteorological department; (2) meteorological data by each region and the combinatory analysis of icing observation data, calculates in zones of different the relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness and digital elevation; (3) the digital elevation figure in prior Fen Hao district is imported in arcgis software, and base map taking zone boundary figure layer file as icing areal map, calculate region-wide ice thickness according to the relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness in zones of different and digital elevation by grid counter; (4) at arcgis software, the ice thickness calculating is carried out to reclassification, make to meet the ice formation grading standard of power industry, then grid map is carried out to grid and turn face, thereby obtain ice formation distribution plan.
2. by powerline ice-covering areal map automatic drafting method claimed in claim 1, it is characterized in that:
The relational model of 30 years, 50 years, 100 year reoccurrence period ice thickness and digital elevation is as follows in zones of different:
One, West
30 years one chance: Bh=0.77*exp (0.0015*h)
50 years one chance: Bh=0.88*exp (0.0015*h)
100 years one chance: Bh=1.03*exp (0.0015*h)
Two, middle district
30 years one chance: Bh=1.34*exp (0.00145*h)
50 years one chance: Bh=1.48*exp (0.00145*h)
100 years one chance: Bh=1.67*exp (0.00145*h)
Three, East
30 years one chance: Bh=2.41*exp (0.0014*h)
50 years one chance: Bh=2.86*exp (0.0014*h)
100 years one chance: Bh=3.47*exp (0.0014*h)
Four, mixed zone, Chinese and Western
30 years one chance: Bh=(0.77*exp (0.0015*h)+1.34*exp (0.00145*h))/2
50 years one chance: Bh=(0.88*exp (0.0015*h)+1.48*exp (0.00145*h))/2
100 years one chance: Bh=(1.03*exp (0.0015*h)+1.67*exp (0.00145*h))/2.
Bh represents ice thickness, and h represents digital elevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410326864.2A CN104143019A (en) | 2014-07-10 | 2014-07-10 | Automatic drawing method for iced covered area map of power transmission line |
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| CN201410326864.2A CN104143019A (en) | 2014-07-10 | 2014-07-10 | Automatic drawing method for iced covered area map of power transmission line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104462660A (en) * | 2014-11-14 | 2015-03-25 | 贵州电力试验研究院 | Drawing method for winter icing thickness distribution of field electric transmission line |
| CN105117518A (en) * | 2015-07-28 | 2015-12-02 | 山东大学 | Automatic drawing method and system for power distribution feeder single-line diagram of radiation connection mode |
| CN113821895A (en) * | 2021-09-01 | 2021-12-21 | 南方电网科学研究院有限责任公司 | Construction method and device of power transmission line icing thickness prediction model and storage medium |
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| CN103115598A (en) * | 2013-01-22 | 2013-05-22 | 湖北省电力公司电力科学研究院 | Mapping method for ice coating region distribution of power grid |
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| US20050010365A1 (en) * | 2001-08-02 | 2005-01-13 | Lee Chapman | Road weather prediction system and method |
| CN103115598A (en) * | 2013-01-22 | 2013-05-22 | 湖北省电力公司电力科学研究院 | Mapping method for ice coating region distribution of power grid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104462660A (en) * | 2014-11-14 | 2015-03-25 | 贵州电力试验研究院 | Drawing method for winter icing thickness distribution of field electric transmission line |
| CN105117518A (en) * | 2015-07-28 | 2015-12-02 | 山东大学 | Automatic drawing method and system for power distribution feeder single-line diagram of radiation connection mode |
| CN105117518B (en) * | 2015-07-28 | 2018-01-30 | 山东大学 | A kind of distribution feeder line chart automatic drafting method and system for radiating Connection Mode |
| CN113821895A (en) * | 2021-09-01 | 2021-12-21 | 南方电网科学研究院有限责任公司 | Construction method and device of power transmission line icing thickness prediction model and storage medium |
| CN113821895B (en) * | 2021-09-01 | 2023-11-03 | 南方电网科学研究院有限责任公司 | Method and device for constructing power transmission line icing thickness prediction model and storage medium |
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Application publication date: 20141112 |