CN104182594B - A kind of method for drafting of power system wind area figure - Google Patents
A kind of method for drafting of power system wind area figure Download PDFInfo
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Abstract
The present invention provides a kind of method for drafting of power system wind area figure, comprises the following steps：(1) collection research region transmission line of electricity disaster caused by a windstorm accident point data over the years, wind field meteorological data, topographic(al) data；(2) the wind field meteorological data of above-mentioned collection is arranged and analyzes, it is determined that influenceing the Siberian of transmission line of electricity wind speed；(3) each weather station platform basic wind speed is calculated；(4) basic wind speed of different reoccurrence is calculated；(5) power system wind area figure is drawn using certainty interpolation method；(6) practical operating experiences amendment wind area figure is combined.The standard that the present invention has formulated power system wind area graph region subregion, grade scale and procedure draws system, the wind speed profile and feature of transmission line of electricity can accurately be reflected comprehensively, be advantageous to the practical application of power system wind area figure, reference frame is provided for Transmission Line Design route selection, equivalent wind action, disaster caused by a windstorm preventing and treating.
Description
Technical field
The present invention relates to power system transmission line technical field, in particular to one kind to draw electricity using certainty interpolation method
The method of Force system wind area figure.
Background technology
In recent years, the accident that transmission line of electricity is destroyed by disaster caused by a windstorm happens occasionally.Big wind-induced circuit disturbance and flashover meeting
Have a strong impact on the safe operation of transmission line of electricity and influence the transport of electric power energy, thing followed transmission line of electricity collapses, breaks, jumped
Lock accident, it will also result in electrical network facilities damage.It can be seen that carrying out wind hazard prevention for transmission lines research, transmission line of electricity is improved in high wind
Security under disaster is to work as previous very urgent task and challenge.It is well known that wind area figure can be to a certain extent
Reflecting regional storm condition, there is certain guidance to the design route selection of transmission line of electricity and equivalent wind action, the preventing and treating of circuit disaster caused by a windstorm etc.
Effect.Therefore, the method for drafting of power system wind area figure is formulated, it is very urgent and necessary, and how scientifically to determine storm etc.
Level and easily hair region are the critical problems that wind area figure is drawn.
The method for drafting of wind area figure is to carry out statistical analysis to the actual motion circuit Wind Data of manual record at present, is obtained
Go out the basic wind speed of working line, the basic wind speed of different reoccurrence is then calculated using extremum I distributing model, further according to not
Basic wind speed with the return period artificially divides wind speed profile region.The wind area figure human factor that this method is drawn is than great, amount
Change index is few, data accuracy is not high.Being additionally, since wind has randomness and directionality, and changes with the change of height, people
Work record value can not accurately reflect on-site actual situations comprehensively.Therefore, the wind area figure drawn can not all-sidedly and accurately characterize defeated
The wind conditions of electric line, reduce the science and practical application of wind area figure.
The content of the invention
The purpose of the present invention is in order to overcome above technical deficiency, there is provided a kind of method for drafting of power system wind area figure, this
Inventive method draws power system wind area figure using certainty interpolation method, is Transmission Line Design route selection, equivalent wind action, wind
Calamity preventing and treating provides reference frame.
Technical scheme：
A kind of method for drafting of power system wind area figure, it is characterised in that comprise the following steps：
(1) Data Collection：Collection research region transmission line of electricity disaster caused by a windstorm accident point data over the years, the wind field weather station platform conception of history
Survey data, topographic(al) data；
(2) data preparation and analysis：Arrange, the wind field weather station desk calendar history observation data that analysis is collected, it is determined that influenceing defeated
The Siberian of electric line wind speed is annual mean wind speed, the yearly maximum wind speed of 16 different wind directions, longitude, latitude, observation
Height above sea level, airspeedometer is liftoff/podium level and observation platform height；
(3) each weather station platform basic wind speed is calculated：Contrast the year of each meteorological 16 different wind directions of platform in step (2)
Maximum wind velocity value, air speed value the maximum is selected as the yearly maximum wind speed of the meteorological platform and yearly maximum wind speed is converted into standard
Highly it is 10m basic wind speed X, and calculates the weather station desk calendar history observation data basic wind speed X average X and mean square deviation S；
(4) basic wind speed of different reoccurrence is calculated：Each weather station platform basic wind speed X in step (3) is passed through into extreme value type I
Distributed model converts, and obtains the basic wind speed X of different reoccurrenceR；
(5) in ArcMap, using the basic wind speed X of the different reoccurrence in certainty interpolation method combination step (4)RPaint
Power system wind area figure processed；
(6) practical operating experiences amendment wind area figure is combined.
Described survey region transmission line of electricity disaster caused by a windstorm accident point data over the years be region disaster caused by a windstorm occur detail time,
Point, failure shaft tower number, design wind speed value and actual measurement air speed value.
Wind field weather station desk calendar history observation data are the longitude and latitude degrees of data of meteorological observation platform particular location, observation field height above sea level
Data, airspeedometer are liftoff/from podium level data, year after year observation platform altitude information, annual mean wind speed, year after year year very big wind
Speed, year after year year extreme wind speed time of occurrence, wind direction and each wind direction frequency observation data and each wind direction maximum wind velocity data.
Described topographic(al) data is that one's respective area border figure layer file is collected by Mapping departments, the base map drawn as wind area figure.
In the step (3), yearly maximum wind speed is scaled the basic wind speed that calibrated altitude is 10m, reduction formula is as follows：
10m basic wind speed X=yearly maximum wind speeds * (10/ airspeedometer actual height)0.16。
In the step (5), using certainty interpolation method by the basic wind speed X of different reoccurrenceRSpace interpolation is carried out, is painted
Power system wind area figure processed, and degree and zoning is carried out to wind area figure by power system wind area Tu Feng areas colour code, and enter by breakpoint
Row color matching；The certainty interpolation method is anti-distance weighting interpolation method.
In the step (6), compare the accident that the actual measurement wind speed of disaster caused by a windstorm accident point and the power system wind area figure are shown
The basic wind speed of point, and the practical operating experiences for combining local professional and technical personnel are modified to wind area figure.
The present invention has following beneficial effect：
1st, the drafting more science of certainty interpolation method Shi Feng areas figure, the wind speed profile of transmission line of electricity can be accurately reflected comprehensively
And feature；
2nd, the method according to practical operating experiences amendment wind area figure has been formulated；
3rd, wind area grade classification and corresponding colour code are specify that, strengthens practical application；
4th, there is standardization to draw flow, it is easy to utilize；
5th, using electronic map as base map, intuitive is strong, the degree of accuracy is high, is easy to use.
Brief description of the drawings
Fig. 1 is wind area drawing drawing method flow chart of the present invention.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings：
A kind of method for drafting of power system wind area figure, it is characterised in that comprise the following steps：
(1) Data Collection：Collection research region transmission line of electricity disaster caused by a windstorm accident point data over the years, the wind field weather station platform conception of history
Survey data, topographic(al) data；
(2) data preparation and analysis：Arrange, the wind field weather station desk calendar history observation data that analysis is collected, it is determined that influenceing defeated
The Siberian of electric line wind speed is annual mean wind speed, the yearly maximum wind speed of 16 different wind directions, longitude, latitude, observation
Height above sea level, airspeedometer is liftoff/podium level and observation platform height；
(3) each weather station platform basic wind speed is calculated：Contrast the year of each meteorological 16 different wind directions of platform in step (2)
Maximum wind velocity value, air speed value the maximum is selected as the yearly maximum wind speed of the meteorological platform and yearly maximum wind speed is converted into standard
Highly it is 10m basic wind speed X, and calculates the weather station desk calendar history observation data basic wind speed X average X and mean square deviation S；
(4) basic wind speed of different reoccurrence is calculated：Each weather station platform basic wind speed X in step (3) is passed through into extreme value type I
Distributed model converts, and obtains the basic wind speed X of different reoccurrenceR；
(5) in ArcMap, using the basic wind speed X of the different reoccurrence in certainty interpolation method combination step (4)R
Draw power system wind area figure；
(6) practical operating experiences amendment wind area figure is combined.
The method for drafting of power system wind area figure is divided into Data Collection, data preparation and analysis, mapping three parts, and mapping is soft
Part is by taking ArcGIS as an example.
1st, Data Collection
Required data include three major types, are survey region transmission line of electricity disaster caused by a windstorm accident point data over the years, wind field meteorology respectively
History observation data, zone boundary figure layer file.
1.1 transmission lines of electricity disaster caused by a windstorm accident point data over the years
Need the detail time, place, failure shaft tower number, design wind speed value, actual measurement wind speed that collection research region disaster caused by a windstorm occurs
Value, for reference to the described power system wind area figure of amendment.
1.2 wind field meteorology history observe data
From meteorological observation station collection research region wind field meteorological measuring over the years, including the specific position of the meteorological observation station
The longitude and latitude degrees of data put, observation field elevation data, airspeedometer is liftoff/from podium level data, observation platform altitude information, year after year
Annual mean wind speed, year after year year extreme wind speed, year after year year extreme wind speed time of occurrence, wind direction and each wind direction frequency observation data,
Each wind direction maximum wind velocity data etc..
1.3 zone boundary figure layer files
One's respective area border figure layer file is collected from Mapping departments, the base map drawn as wind area figure.
2nd, data preparation and analysis
2.1 sequence screenings influence effective meteorological geographic element of circuit wind area distribution
In Excel, be ranked up and screened by transmission line of electricity title, comparative analysis weather conditions, wind direction, air speed value,
The geographical indicator such as the meteorological index such as temperature, humidity, orographic condition, longitude, latitude, finding out influences having for power transmission line transportation work style area distribution
Imitate meteorological geographic element.
2.2 determine to influence the Siberian of transmission line of electricity wind speed
In Excel, classified finishing, comparative analysis are carried out to wind field meteorological data, analyzing influence transmission line of electricity wind speed
Leading factor and its influence degree, determine mean wind speed, 16 different wind directions yearly maximum wind speed (such as N wind directions yearly maximum wind speed,
NNE wind directions yearly maximum wind speed, ENE wind direction yearly maximum wind speeds etc.), longitude, latitude, observation field height above sea level, airspeedometer is liftoff/it is flat
The factors such as platform height, observation platform height are Siberian.
2.3 calculate each meteorological site basic wind speed
The yearly maximum wind speed value of each 16 different wind directions of meteorological site is contrasted, selective value the maximum is as the meteorological site
Yearly maximum wind speed, the basic wind speed that calibrated altitude is 10m, 10m basic wind speed=year most strong wind are scaled in Excel
Fast * (10/ airspeedometer actual height)0.16。
2.4 calculate the basic wind speed of different reoccurrence
In Excel, the basic of different reoccurrence (10,15,20 ...) is calculated according to extremum I distributing model formation
Wind speed.Formula (1) is extremum I distributing model
In formula, XRFor different reoccurrence basic wind speed, X is the average of history meteorological data, and S is the equal of history meteorological data
Variance, c1、c2According to the value of table 1, T is the return period.
Table 1
| n | c1 | c2 |
| 10 | 0.94963 | 0.49521 |
| 15 | 1.02057 | 0.51284 |
| 20 | 1.06282 | 0.52355 |
| 25 | 1.09145 | 0.53086 |
| 30 | 1.11237 | 0.53622 |
| 35 | 1.12847 | 0.54034 |
| 40 | 1.14131 | 0.54362 |
| 45 | 1.15184 | 0.54630 |
| 50 | 1.16066 | 0.54854 |
| ∞ | 1.28255 | 0.57722 |
N represents the data time limit of history meteorological data in table
3rd, map
The wind area figure of 3.1 different reoccurrences is drawn
In ArcMap, using the anti-distance weighting instrument under spatial analysis module, to the basic wind speed of different reoccurrence
Enter row interpolation, draw power system wind area figure.
3.2 wind area figures render
In ArcMap softwares, degree and zoning is carried out to wind area figure by Tu Feng areas of power system wind area colour code (table 2), and
Matched colors by breakpoint.
Table 2
The figure amendment of 3.3 wind areas
In ArcMap, the shaft tower coordinate of transmission line of electricity generation disaster caused by a windstorm is superimposed upon and rendered on Hou Feng areas figure, compares wind
The basic wind speed for the accident point that the actual measurement wind speed and wind area figure of calamity accident point are shown, and combine local professional and technical personnel's
Practical operating experiences are modified to wind area figure.
Claims (3)
1. a kind of method for drafting of power system wind area figure, it is characterised in that comprise the following steps：
(1) Data Collection：Collection research region transmission line of electricity disaster caused by a windstorm accident point data over the years, wind field weather station desk calendar history observation number
According to, topographic(al) data；
(2) data preparation and analysis：Arrange, the wind field weather station desk calendar history observation data that analysis is collected, in Excel, by defeated
Electric line title is ranked up and screened, comparative analysis weather conditions, wind direction, air speed value, temperature, humidity meteorological index, landform
Condition, longitude, latitude geographical indicator, the effective meteorological geographic element for influenceing the distribution of power transmission line transportation work style area is found out, in Excel,
Classified finishing, comparative analysis, the leading factor and its influence journey of analyzing influence transmission line of electricity wind speed are carried out to wind field meteorological data
Degree, it is determined that the Siberian for influenceing transmission line of electricity wind speed is annual mean wind speed, the yearly maximum wind speed of 16 different wind directions, warp
Degree, latitude, observation field height above sea level, airspeedometer is liftoff/podium level and observation platform height；
(3) each weather station platform basic wind speed is calculated：The year for contrasting each meteorological 16 different wind directions of platform in step (2) is maximum
Air speed value, air speed value the maximum is selected as the yearly maximum wind speed of the meteorological platform and yearly maximum wind speed is converted into calibrated altitude
For 10m basic wind speed X, and calculate weather station desk calendar history observation data basic wind speed X averageWith mean square deviation s, change
It is as follows to calculate formula：
10m basic wind speed X=yearly maximum wind speeds * (10/ airspeedometer actual height)0.16；
(4) basic wind speed of different reoccurrence is calculated：By each weather station platform basic wind speed X, average in step (3)And mean square deviation
S is converted by extremum I distributing model, obtains the basic wind speed X of different reoccurrenceR, specific method is as follows：In Excel, root
The basic wind speed of different reoccurrence 10,15,20 ... is calculated according to extremum I distributing model formation, formula (1) is extreme value type I
Distributed model
<mrow>
<msub>
<mi>X</mi>
<mi>R</mi>
</msub>
<mo>=</mo>
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<mi>X</mi>
<mo>&OverBar;</mo>
</mover>
<mo>-</mo>
<mfrac>
<mi>s</mi>
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<mi>c</mi>
<mn>1</mn>
</msub>
</mfrac>
<mrow>
<mo>(</mo>
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<mi>c</mi>
<mn>2</mn>
</msub>
<mo>+</mo>
<mi>l</mi>
<mi>n</mi>
<mo>&lsqb;</mo>
<mi>l</mi>
<mi>n</mi>
<mo>(</mo>
<mfrac>
<mi>T</mi>
<mrow>
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</mrow>
</mfrac>
<mo>)</mo>
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In formula, XRFor different reoccurrence basic wind speed,For the average of history meteorological data, s is the square of history meteorological data
Difference, c1、c2According to historical data table value, T is the return period；
(5) in ArcMap, using the basic wind speed X of the different reoccurrence in certainty interpolation method combination step (4)RDraw electricity
Force system wind area figure：Described topographic(al) data is that one's respective area border figure layer file is collected by Mapping departments, is drawn as wind area figure
Base map, using certainty interpolation method by the basic wind speed X of different reoccurrenceRSpace interpolation is carried out, draws power system wind area figure,
And degree and zoning is carried out to wind area figure by power system wind area Tu Feng areas colour code, and matched colors by breakpoint；The certainty
Interpolation method is anti-distance weighting interpolation method；
(6) practical operating experiences amendment wind area figure is combined:Compare the actual measurement wind speed of disaster caused by a windstorm accident point and the power system wind area
The basic wind speed for the accident point that figure is shown, and the practical operating experiences for combining local professional and technical personnel are repaiied to wind area figure
Just.
2. the method for drafting of power system wind area figure as claimed in claim 1, it is characterised in that：Described survey region transmission of electricity
Circuit disaster caused by a windstorm accident point data over the years is detail time, place, failure shaft tower number, design wind speed value and the reality that region disaster caused by a windstorm occurs
Survey air speed value.
3. the method for drafting of power system wind area figure as claimed in claim 1, it is characterised in that：The wind field weather station platform conception of history
Survey data for the longitude and latitude degrees of data of meteorological observation platform particular location, observation field elevation data, airspeedometer is liftoff/from podium level
Data, year after year observation platform altitude information, annual mean wind speed, year after year year extreme wind speed, year after year year extreme wind speed time of occurrence, wind
To and each wind direction frequency observation data and each wind direction maximum wind velocity data.
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| CN104463883B (en) * | 2014-12-17 | 2017-05-10 | 国家电网公司 | Method for evaluating forest fire spreading risk of power transmission channel |
| CN105046581B (en) * | 2015-07-09 | 2019-05-24 | 广西电网有限责任公司电力科学研究院 | Transmission line of electricity high wind trip risk appraisal procedure based on multi-parameter wind load |
| CN105095589B (en) * | 2015-08-10 | 2018-07-03 | 贵州电网有限责任公司电力科学研究院 | A kind of mountain area power grid wind area is distributed drawing drawing method |
| CN105891537B (en) * | 2016-06-30 | 2019-06-28 | 广东电网有限责任公司电力科学研究院 | A kind of the air monitoring method, apparatus and system of electric power line pole tower |
| CN106991247A (en) * | 2017-04-17 | 2017-07-28 | 云南电网有限责任公司电力科学研究院 | The method for drafting and system of a kind of power network windburn distribution map |
| CN107330233B (en) * | 2017-08-31 | 2020-11-17 | 广东电网有限责任公司电力科学研究院 | Method and device for analyzing design wind speed of power transmission tower |
| CN108090285B (en) * | 2017-12-20 | 2021-06-01 | 中国科学院西北生态环境资源研究院 | Microclimate observation point distribution method for wind disaster monitoring of power transmission line in complex terrain |
| CN108665517B (en) * | 2018-05-18 | 2022-03-15 | 南方电网科学研究院有限责任公司 | Power grid wind speed distribution diagram repairing and editing method, device, equipment and medium |
| CN109033181B (en) * | 2018-06-26 | 2020-06-30 | 河海大学 | Wind field geographic numerical simulation method for complex terrain area |
| CN111696330B (en) * | 2019-03-13 | 2023-10-24 | 中国电力科学研究院有限公司 | Classification method and system for wind disaster of power transmission line |
| CN111143477B (en) * | 2019-09-18 | 2023-12-08 | 中国电力工程顾问集团西北电力设计院有限公司 | Method and device for relevant rapid statistics of air cooling meteorological wind speed sector |
| CN112632799B (en) * | 2021-01-06 | 2024-01-26 | 国核电力规划设计研究院有限公司 | Method and device for evaluating design wind speed of power transmission line |
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