A Method for Generating Power Grid Wind Speed ​​Distribution Map

A distribution map and wind speed technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the large difference between wind speed and design wind speed, unconventional wind considerations, transmission line design and operation and maintenance difficulties, etc. problems, to achieve the effect of facilitating design and operation and maintenance personnel to consult, ensuring accuracy and rationality, and improving economy and safety

Active Publication Date: 2015-08-05
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, in the nine typical meteorological regions provided in Appendix A, the basic wind speed classification is relatively general. For those trans-regional transmission lines, there is a large difference between the actual wind speed and the design wind speed
And in the case of insufficient meteorological data and lack of operating experience along the line, corresponding meteorological data statistics work is still required, which also brings difficulties to the design and operation and maintenance of transmission lines
In addition, the specification does not take into account unconventional winds such as typhoons and downburst winds (squall line winds)

Method used

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  • A Method for Generating Power Grid Wind Speed ​​Distribution Map
  • A Method for Generating Power Grid Wind Speed ​​Distribution Map
  • A Method for Generating Power Grid Wind Speed ​​Distribution Map

Examples

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Embodiment 1

[0034] Embodiment 1: as Figure 1-2 As shown, the inventive grid wind speed distribution map generation method of this example is characterized in that: comprising the following steps:

[0035] (1) collect data;

[0036] (2) Determine the basic wind speed;

[0037] (3) Basic wind speed correction for unconventional winds;

[0038] (4) Generation of grid wind speed distribution map.

[0039] In the step (1), the data includes wind observation data in the region over the years, transmission line design and operation experience data, topographic map base map data, and 220kV and above voltage level transmission line base map data.

[0040] The wind observation data in this area over the years include the observation data of strong wind days, average wind speed and extreme wind speed of national meteorological stations and regional automatic weather stations, as well as the geographic coordinates and altitude data of national meteorological stations. Generally, the wind speed d...

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Abstract

The invention relates to the technical field of power transmission circuit design and running maintenance in electric disaster prevention and reduction, in particular to a generation method for a grid wind speed distribution map. According to the method, the grid wind speed distribution map is generated by collecting data such as wide observation data and conforming basic wind speed and basic wind speed correction of non-conventional wind. With the combination of wind speed grading, and the consideration of harm to a power transmission circuit of non-conventional wind such as typhoon and downburst wind, the method provides a mapping manner integrating wind speed observation data and typical wind disaster record of the power transmission circuit; compared with the conventional electric grid wind speed distribution mapping manner, the method is better in applicability and precision.

Description

Technical field: [0001] The invention relates to the technical field of transmission line design and operation and maintenance in disaster prevention and mitigation of power grids, and more particularly relates to a method for generating a wind speed distribution map of a power grid. Background technique: [0002] According to the data at home and abroad, the disasters caused by strong winds to the power grid are more serious. In order to improve the economy and safety of transmission line design, the wind speed distribution map of the power grid is drawn by the generation method of the wind disaster distribution map of the power grid, which can provide a basis for the design and selection of the transmission line, the value of the wind load, and the operation and maintenance of the line. [0003] At present, the design wind speed of transmission lines in my country is mainly based on the "Code for Design of 110kV~750kV Overhead Transmission Lines" (GB50545-2010), its articl...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 杨风利杨靖波张宏杰吴静党会学胡晓光高雁
Owner STATE GRID CORP OF CHINA
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