Spatial valuing method of design air speed of overhead transmission line of coastal region

An overhead transmission line, wind speed technology, applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., can solve the problem of insufficient representativeness of the design wind speed spatial distribution, achieve accurate wind speed calculation results, ensure rationality and stability , enhance the effect of representative

Active Publication Date: 2015-04-29
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

The present invention collects and sorts out the wind speed data of automatic weather stations and marine stations widely distributed in coastal areas by counting the landfall frequency and intensity characteristics of tropical cyclones in coastal areas, and condu

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  • Spatial valuing method of design air speed of overhead transmission line of coastal region
  • Spatial valuing method of design air speed of overhead transmission line of coastal region
  • Spatial valuing method of design air speed of overhead transmission line of coastal region

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Embodiment Construction

[0018] The space value method of the design wind speed of the overhead transmission line in the coastal area of ​​the present invention comprises the following steps:

[0019] 1) data collection, review and correction;

[0020] 2) Analysis of the characteristics of tropical cyclones in coastal areas;

[0021] 3) Calculate the theoretical wind speed of long-term meteorological stations;

[0022] 4) Complementary calculation of automatic weather station;

[0023] 5) Space interpolation and optimization of design wind speed.

[0024] In the present embodiment, above-mentioned step 1) data collection includes the following contents:

[0025] "Tropical Cyclone Yearbook" over the years, the historical evolution of national meteorological stations and the maximum 10-minute average wind speed observation data over the years, the historical evolution of marine stations and the maximum 10-minute average wind speed observation data over the years, the 10-minute average wind speed obse...

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Abstract

The invention provides a spatial valuing method of design air speed of an overhead transmission line of a coastal region. The method comprises the steps of 1) collecting, reviewing and correcting materials; 2) analyzing tropical cyclone characteristics of the coastal region; 3) calculating the theoretic long-term air speed through meteorological observatory; 4) performing supplementing calculation through an automatic meteorological observatory; 5) performing spatial interpolation and optimizing of the designed air speed. According to the method, the data of an ocean station and the automatic meteorological observatory are fully utilized, the data of the ocean station are introduced to clearly reflect the trend of the air speed changing from the coastal region to the inland; the data of the automatic meteorological observatory are introduced to provide more design air speed spatial interpolation points, and therefore the representation of the basic meteorological data of the transmission line project can be improved; in addition, the reasonability and stability of the spatial distribution of the design air speed can be ensured by the optimal space interpolation method. The spatial valuing method of design air speed of the overhead transmission line of the coastal region is accurate in air speed calculation result.

Description

technical field [0001] The invention belongs to the technical field of transmission line engineering design and transformation, and in particular relates to a spatial value acquisition method for design wind speed of overhead transmission lines in coastal areas. Background technique [0002] The southeastern coastal areas of my country are located on the main path of tropical cyclones in the Northwest Pacific Ocean and the South China Sea. They are severely attacked by tropical cyclones, and the situation of disaster prevention and mitigation of power transmission lines in coastal areas is severe. [0003] The design wind speed is a key parameter in the design of overhead transmission lines, and the value of the design wind speed is directly related to the economy, safety and applicability of the line project. At present, the design wind speed of overhead transmission lines is mainly determined based on the wind speed data of long-term meteorological stations near the line c...

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Application Information

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IPC IPC(8): G06F19/00G06F17/50
CPCY02A90/10
Inventor 厉天威潘春平李锐海罗兵江巳彦赵建华廖永力蔡彦枫王国利刘磊张灿亨
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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