CN102915387A - Power grid ice region distribution diagram drawing method - Google Patents
Power grid ice region distribution diagram drawing method Download PDFInfo
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- CN102915387A CN102915387A CN2012103336621A CN201210333662A CN102915387A CN 102915387 A CN102915387 A CN 102915387A CN 2012103336621 A CN2012103336621 A CN 2012103336621A CN 201210333662 A CN201210333662 A CN 201210333662A CN 102915387 A CN102915387 A CN 102915387A
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Abstract
The invention provides a power grid ice region distribution diagram drawing method which comprises the following steps: acquiring data; calculating the thickness of designed ice at different reconstruction periods; correcting the thickness of the covering ice in a micro-landform; drawing a power grid ice region distribution diagram; and correcting the power grid ice region distribution diagram. With the adoption of the method, basis and guidance are provided for planning, designing, maintaining and transforming a power transmission line, the grading of the ice region and corresponding color codes are defined, and thus the method is beneficial for the practical application of the power grid ice region distribution diagram; and a fine correcting method of the power grid ice region distribution diagram is provided, thereby being beneficial for evaluating the influence of the micro-landform and the microclimate on the ice region partitioning result.
Description
Technical field
The invention belongs to the electrical network technical field of preventing and reducing natural disasters, be specifically related to a kind of electrical network ice formation distribution plan method for drafting.
Background technology
Determine that reasonably the Transmission Line Design ice thickness is the major issue that line design work faces always, is directly connected to anti-ice load-bearing capacity and the investment of circuit.As seen, can quantitative the ice formation figure of zone icing distribution situation be effective tool and the foundation of carrying out the circuit deicing design.Because the continuous appearance of electrical network Harm Accident, requirement must design circuit targetedly according to the icing situation, should moderately improve the deicing design standard, considers again the economic technology requirement and can not cause waste; In addition, ice formation figure also can also have certain reference value to line management and operation in reflecting regional icing situation to a certain degree, helps further to strengthen the ability that electrical network is withstood natural calamities, and has huge economy and social value.Therefore, the method for drafting of formulation electrical network ice formation figure is a very urgent and crucial job.
" Shaanxi Province's icing zone plotting " (electric power network technique, the 4th phase of the 34th volume, in April, 2010, Shaanxi Province's icing zone plotting, Wu Suliang, Fan Jianxun, Song Lili, Mao Mingce, Sun Xian in the prior art; ) utilize weather data and wire icing data, set up the regression model of various meteorological elements and electric icing thickness, extrapolate Ice thickness, utilize Pearson came III type to distribute and calculated the 50a of Shaanxi Province one chance wire icing thickness, and ice covering thickness corrected to 20 meters eminences, draw the 50a of Shaanxi Province one and met the ice formation distribution plan.But, in the ice formation distribution plan method for drafting that the document provides, typical case's the choosing of wire, concrete ice thickness grade classification etc. do not meet the exploration standard of meteorological department and the design specifications that power department is promulgated, according to the operating experience of actual transmission line of electricity the different reoccurrence period design ice thickness that count are not corrected, reduced the practicality of ice formation distribution plan.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of electrical network ice formation distribution plan method for drafting, for transmission line of electricity planning, design, O﹠M and transformation provide foundation and guidance.
In order to realize the foregoing invention purpose, the present invention takes following technical scheme:
A kind of electrical network ice formation distribution plan method for drafting said method comprising the steps of:
Step 1: collect data;
Step 2: the design ice thickness of calculating the different reoccurrence periods;
Step 3: mima type microrelief is corrected ice covering thickness;
Step 4: draw described electrical network ice formation distribution plan;
Step 5: correct described electrical network ice formation distribution plan.
In the described step 1, data comprise this area Transmission Line Design and operating experience data, this area diurnal meterorological data data in winter over the years and this area digital elevation model and topomap base map data.
Described this area Transmission Line Design and operating experience data comprise design ice thickness, checking computations ice thickness, longitude and latitude and the terrain information of the power transmission line corridor of operation 330kV and above, and longitude and latitude, icing type, ice covering thickness and the terrain information at transmission line of electricity actual measurement icing place;
Described this area diurnal meterorological data data in winter over the years comprise that surface weather observation station, this area diurnal meterorological data data in winter over the years and this area have the day by day icing data at the surface weather observation station of Ice data; Surface weather observation station, described this area diurnal meterorological data data in winter over the years comprise daily mean temperature, daily maximum temperature, day lowest temperature, per day relative humidity, per day vapour pressure, daily precipitation amount, sunshine time and per day wind speed, and the day by day icing data that described this area has the surface weather observation station of Ice data comprises that icing ice weighs and the icing line of apsides.
Described step 2 may further comprise the steps:
Step 2-1: the icing data at surface weather observation station is converted into the standard ice thickness;
Step 2-2: the standard ice thickness is carried out height and wire diameter is corrected;
Step 2-3: according to icing material computation design ice thickness.
Among the described step 2-1, when north-south ice covering thickness and East and West direction ice covering thickness not simultaneously, get ice covering thickness the greater; Have the heavy icing data of measured ice and choose according to the ice tuple and transform according to carrying out the standard ice thickness, the icing data with actual measurement icing line of apsides is carried out the standard ice thickness according to the icing line of apsides and is transformed.
Among the described step 2-2, be that terrain clearance is that 10 meters, diameter are the icing ice thickness on 26.8 millimeters and not charged, the non-wire that reverses with the standard ice thickness correction.
Among the described step 2-3, by adopting the relational model between the polynary progressively linear regression method statistics ice covering thickness meteorological parameter relevant with each, and this model extended to the surface weather observation station, utilize corresponding meteorological parameter record, calculate the corresponding historical icing ice thickness in surface weather observation station, and then, calculate position, the surface weather observation station design ice thickness of different reoccurrence periods according to extreme I type, Gumble distribution or Pearson came III type statistical model.
In the described step 3, distribution situation according to the surface weather observation station with icing Observation Service, the drawing scope further is refined as latticed zone, single grid planted agent after the division comprises at least one surface weather observation station, with the design ice thickness of different reoccurrence periods of calculating according to ground meteorological site data in the grid as standard value, according to the absolute elevation data, calculate the mima type microrelief ice covering thickness in the different elevations.
In the described step 4, adopt Spatial Interpolation Method that the revised ice covering thickness of Micro-terrain Action is carried out space interpolation, and draw electrical network ice formation distribution plan; Described Spatial Interpolation Method comprises the Krieger method of interpolation.
In the described step 5, to carrying out quality control and will survey ice covering thickness being converted into the standard ice thickness at working line icing accident point actual measurement icing, the design ice thickness of the accident point that more described standard ice thickness and described electrical network ice formation distribution plan show is corrected painting electrical network ice formation distribution plan in conjunction with weather, landform, height above sea level and water body.
Compared with prior art, beneficial effect of the present invention is:
1, for the difference of icing data, stipulated the corresponding processing mode of calculating different reoccurrence period design ice thickness, be convenient to each department and select according to actual conditions;
2, stipulate the typical wire of conversion ice covering thickness, met the design specifications of observation criteria and the power department of meteorological department, improved the practicality of electrical network ice formation distribution plan;
3, formulated the method for the ice formation distribution plan being corrected according in practical operating experiences such as working line design ice thickness and icing accident point icing data;
4, clear and definite ice formation grade classification and corresponding colour code are conducive to the practical application of electrical network ice formation distribution plan;
5, formulate the correction method that becomes more meticulous of electrical network ice formation distribution plan, helped to weigh mima type microrelief, microclimate to icing zone plotting result's impact.
Description of drawings
Fig. 1 is electrical network ice formation distribution plan method for drafting process flow diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Such as Fig. 1, a kind of electrical network ice formation distribution plan method for drafting said method comprising the steps of:
Step 1: collect data;
Step 2: the design ice thickness of calculating the different reoccurrence periods;
Step 3: mima type microrelief is corrected ice covering thickness;
Step 4: draw described electrical network ice formation distribution plan;
Step 5: correct described electrical network ice formation distribution plan.
In the described step 1, data comprise this area Transmission Line Design and operating experience data, this area diurnal meterorological data data in winter over the years and this area digital elevation model and topomap base map data.
Described this area Transmission Line Design and operating experience data comprise design ice thickness, checking computations ice thickness, longitude and latitude and the terrain information of the power transmission line corridor of operation 330kV and above, and longitude and latitude, icing type, ice covering thickness and the terrain information at transmission line of electricity actual measurement icing place;
Described this area diurnal meterorological data data in winter over the years comprise that surface weather observation station, this area winter over the years (March 31 November 1 to next year) diurnal meterorological data data and this area have the day by day icing data at the surface weather observation station of Ice data; Surface weather observation station, described this area diurnal meterorological data data in winter over the years comprise daily mean temperature, daily maximum temperature, day lowest temperature, per day relative humidity, per day vapour pressure, daily precipitation amount, sunshine time and per day wind speed, and the day by day icing data that described this area has the surface weather observation station of Ice data comprises that icing ice weighs and the icing line of apsides.
Collect this area digital elevation model and topomap base map data.Wherein, the topomap base map should mate with this area digital elevation model data.
Described step 2 may further comprise the steps:
Step 2-1: the icing data at surface weather observation station is converted into the standard ice thickness;
Step 2-2: the standard ice thickness is carried out height and wire diameter is corrected;
Step 2-3: according to icing material computation design ice thickness.
Among the described step 2-1, when north-south ice covering thickness and East and West direction ice covering thickness not simultaneously, get ice covering thickness the greater; Have the heavy icing data of measured ice and choose according to the ice tuple and transform according to carrying out the standard ice thickness, the icing data with actual measurement icing line of apsides is carried out the standard ice thickness according to the icing line of apsides and is transformed.
Among the described step 2-2, be that terrain clearance is that 10 meters, diameter are the icing ice thickness on 26.8 millimeters and not charged, the non-wire that reverses with the standard ice thickness correction.
Among the described step 2-3, the icing observation history chronosequence at surface weather observation station, this area more in short-term, by adopting the relational model between the polynary progressively linear regression method statistics ice covering thickness meteorological parameter relevant with each, and this model extended to the surface weather observation station, utilize corresponding meteorological parameter record, calculate the corresponding historical icing ice thickness in surface weather observation station, and then, calculate position, the surface weather observation station design ice thickness of different reoccurrence periods according to extreme I type, Gumble distribution or Pearson came III type statistical model.
In the described step 3, distribution situation according to the surface weather observation station with icing Observation Service, the drawing scope further is refined as latticed zone, single grid planted agent after the division comprises at least one surface weather observation station, with the design ice thickness of different reoccurrence periods of calculating according to ground meteorological site data in the grid as standard value, according to the absolute elevation data, calculate the mima type microrelief ice covering thickness in the different elevations.
In the described step 4, adopt Spatial Interpolation Method that the revised ice covering thickness of Micro-terrain Action is carried out space interpolation, and draw electrical network ice formation distribution plan, described Spatial Interpolation Method comprises the Krieger method of interpolation.Ice formation classification and the colour code of electrical network ice formation distribution plan provide as follows shown in the table 1:
Table 1
In the described step 5, to carrying out quality control and will survey ice covering thickness being converted into the standard ice thickness at working line icing accident point actual measurement icing, the design ice thickness of the accident point that more described standard ice thickness and described electrical network ice formation distribution plan show is corrected painting electrical network ice formation distribution plan in conjunction with weather, landform, height above sea level and water body.
Design ice thickness for the actual measurement ice covering thickness shows much larger than the electrical network ice formation distribution plan of drawing based on meteorological data indicates in actual measurement icing position, and the explanation of the style of writing of going forward side by side word is for the user of electrical network ice formation distribution plan provides reference.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. electrical network ice formation distribution plan method for drafting is characterized in that: said method comprising the steps of:
Step 1: collect data;
Step 2: the design ice thickness of calculating the different reoccurrence periods;
Step 3: mima type microrelief is corrected ice covering thickness;
Step 4: draw described electrical network ice formation distribution plan;
Step 5: correct described electrical network ice formation distribution plan.
2. electrical network according to claim 1 ice formation distribution plan method for drafting, it is characterized in that: in the described step 1, data comprise this area Transmission Line Design and operating experience data, this area diurnal meterorological data data in winter over the years and this area digital elevation model and topomap base map data.
3. electrical network according to claim 2 ice formation distribution plan method for drafting, it is characterized in that: described this area Transmission Line Design and operating experience data comprise design ice thickness, checking computations ice thickness, longitude and latitude and the terrain information of the power transmission line corridor of operation 330kV and above, and longitude and latitude, icing type, ice covering thickness and the terrain information at transmission line of electricity actual measurement icing place;
Described this area diurnal meterorological data data in winter over the years comprise that surface weather observation station, this area diurnal meterorological data data in winter over the years and this area have the day by day icing data at the surface weather observation station of Ice data; Surface weather observation station, described this area diurnal meterorological data data in winter over the years comprise daily mean temperature, daily maximum temperature, day lowest temperature, per day relative humidity, per day vapour pressure, daily precipitation amount, sunshine time and per day wind speed, and the day by day icing data that described this area has the surface weather observation station of Ice data comprises that icing ice weighs and the icing line of apsides.
4. electrical network according to claim 1 ice formation distribution plan method for drafting, it is characterized in that: described step 2 may further comprise the steps:
Step 2-1: the icing data at surface weather observation station is converted into the standard ice thickness;
Step 2-2: the standard ice thickness is carried out height and wire diameter is corrected;
Step 2-3: according to icing material computation design ice thickness.
5. electrical network according to claim 4 ice formation distribution plan method for drafting is characterized in that: among the described step 2-1, when north-south ice covering thickness and East and West direction ice covering thickness not simultaneously, get ice covering thickness the greater; Have the heavy icing data of measured ice and choose according to the ice tuple and transform according to carrying out the standard ice thickness, the icing data with actual measurement icing line of apsides is carried out the standard ice thickness according to the icing line of apsides and is transformed.
6. electrical network according to claim 4 ice formation distribution plan method for drafting is characterized in that: among the described step 2-2, be that terrain clearance is that 10 meters, diameter are the icing ice thickness on 26.8 millimeters and not charged, the non-wire that reverses with the standard ice thickness correction.
7. electrical network according to claim 4 ice formation distribution plan method for drafting, it is characterized in that: among the described step 2-3, by adopting the relational model between the polynary progressively linear regression method statistics ice covering thickness meteorological parameter relevant with each, and this model extended to the surface weather observation station, utilize corresponding meteorological parameter record, calculate the corresponding historical icing ice thickness in surface weather observation station, and then, calculate position, the surface weather observation station design ice thickness of different reoccurrence periods according to extreme I type, Gumble distribution or Pearson came III type statistical model.
8. electrical network according to claim 1 ice formation distribution plan method for drafting, it is characterized in that: in the described step 3, distribution situation according to the surface weather observation station with icing Observation Service, the drawing scope further is refined as latticed zone, single grid planted agent after the division comprises at least one surface weather observation station, with the design ice thickness of different reoccurrence periods of calculating according to ground meteorological site data in the grid as standard value, according to the absolute elevation data, calculate the mima type microrelief ice covering thickness in the different elevations.
9. electrical network according to claim 1 ice formation distribution plan method for drafting is characterized in that: in the described step 4, adopt Spatial Interpolation Method that the revised ice covering thickness of Micro-terrain Action is carried out space interpolation, and draw electrical network ice formation distribution plan; Described Spatial Interpolation Method comprises the Krieger method of interpolation.
10. electrical network according to claim 1 ice formation distribution plan method for drafting, it is characterized in that: in the described step 5, to carrying out quality control and will survey ice covering thickness being converted into the standard ice thickness at working line icing accident point actual measurement icing, the design ice thickness of the accident point that more described standard ice thickness and described electrical network ice formation distribution plan show is corrected painting electrical network ice formation distribution plan in conjunction with weather, landform, height above sea level and water body.
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| CN103473610A (en) * | 2013-09-06 | 2013-12-25 | 国家电网公司 | Power grid icing growth trend forecasting method based on digital elevation model |
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| CN103473610A (en) * | 2013-09-06 | 2013-12-25 | 国家电网公司 | Power grid icing growth trend forecasting method based on digital elevation model |
| CN104077726A (en) * | 2014-06-10 | 2014-10-01 | 贵州电力试验研究院 | Method for drawing power transmission line congelation tendency distribution diagram |
| CN104133972B (en) * | 2014-08-13 | 2017-03-22 | 国家电网公司 | Method for partially correcting power grid ice region distributing diagram based on microtopography |
| CN104133972A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Method for partially correcting power grid ice region distributing diagram based on microtopography |
| CN104268794A (en) * | 2014-09-19 | 2015-01-07 | 国家电网公司 | Drawing method of power transmission line bird damage distribution diagram |
| CN104361528A (en) * | 2014-10-31 | 2015-02-18 | 广西电网公司电力科学研究院 | Computing method for icing thickness of overhead power transmission lines at different altitudes |
| 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 |
| CN104699889A (en) * | 2014-12-26 | 2015-06-10 | 国家电网公司 | Drawing method and device for ice region distribution diagram |
| CN104699889B (en) * | 2014-12-26 | 2017-12-12 | 国家电网公司 | The method for drafting and device of ice region distribution diagram |
| CN105808819A (en) * | 2016-02-17 | 2016-07-27 | 南方电网科学研究院有限责任公司 | Power transmission line ice coating real-time distribution module calculation method |
| CN105808819B (en) * | 2016-02-17 | 2017-12-26 | 南方电网科学研究院有限责任公司 | A kind of powerline ice-covering real-time distribution Model Calculating Method |
| CN106228259A (en) * | 2016-07-14 | 2016-12-14 | 国网湖南省电力公司 | Electrical network icing numerical forecast error correcting method based on small water feature analysis |
| CN106446226A (en) * | 2016-09-30 | 2017-02-22 | 深圳市华傲数据技术有限公司 | Weather information processing and displaying method and weather information processing and displaying system |
| CN106446226B (en) * | 2016-09-30 | 2020-07-17 | 深圳市华傲数据技术有限公司 | Method and system for processing and displaying meteorological information |
| CN109961372A (en) * | 2017-12-14 | 2019-07-02 | 国网山西电力勘测设计研究院有限公司 | The overlapping electrical network figure of hyaline membrane printing |
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Inventor after: Cao Zhihuang Inventor after: Yang Jialun Inventor after: Cheng Dengfeng Inventor after: Zhu Kuanjun Inventor after: Liu Bin Inventor after: Zhang Lichun Inventor after: Li Junhui Inventor before: Yang Jialun Inventor before: Zhu Kuanjun Inventor before: Liu Bin Inventor before: Zhang Lichun Inventor before: Li Junhui |
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Effective date of registration: 20160229 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: State Grid Corporation of China Patentee after: State Grid Anhui Electric Power Company Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute Patentee before: State Grid Corporation of China |