High-voltage alternating-current overhead line electromagnetic field control design scheme screening and optimization method

A design scheme, overhead line technology, applied in control/regulating systems, adjusting magnetic variables, instruments, etc., can solve problems such as not being found, and achieve the effect of saving design, saving intangible investment, and saving pre-work costs

Inactive Publication Date: 2015-08-12
STATE GRID CORP OF CHINA +3
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Problems solved by technology

And the prior art has not yet found a technical solution that can well solve the above problems

Method used

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Embodiment 1

[0022] Embodiment 1, taking the 500kV double-circuit tower type of the 5E1 module in the standardized design scheme of a State Grid Corporation of China as an example. According to the tower diagram provided by the standardized design of the State Grid, and according to the calculation model recommended in the appendix of "Technical Specifications for Environmental Impact Assessment of Electromagnetic Radiation for 500kV Ultra-high Voltage Transmission and Transformation Projects" (HJ / T 24-1998), when the line follows the "110kV~ 750kV Overhead Transmission Line Design Code (GB 50545-2010) requires that when the residential area is erected at a height of 14m, the power frequency electric field strength at the residential area 5m away from the side conductors usually cannot meet the standard requirement of 4kV / m.

[0023] Through the preliminary coordination meeting, Jiangsu Electric Power Company, Jiangsu Electric Power Design Institute (electric power major), Guodian Environm...

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Abstract

The invention relates to a high-voltage alternating-current overhead line electromagnetic field control design scheme screening and optimization method. The method includes the following steps that: the same power grid project is designed respectively, so that a plurality of design schemes can be obtained; related parameters and phase wire coordinates are put into statistics; an electromagnetic field control effect is predicted and calculated respectively; tower design schemes which cannot satisfy electromagnetic field control standard requirements are concluded; design optimization and electromagnetic field control measure increase are respectively performed on the tower design schemes which cannot satisfy the electromagnetic field control standard requirements; the electromagnetic field control effect is predicted again; investment amount calculation is respectively performed on electromagnetic field control design schemes which can satisfy 4kV/m standard requirements; and electromagnetic field control design schemes with low investment amount are screened and are adopted as selected schemes. According to the high-voltage alternating-current overhead line electromagnetic field control design scheme screening and optimization method of the invention, environmental protection factors are considered in a feasibility study stage, and therefore, major changes in a design process can be avoided, and design and prediction time can be saved by more than 50%, and intangible investments in the power grid project can be saved.

Description

technical field [0001] The present invention relates to an optimization design method, and today relates to a screening and optimization method for electromagnetic field control design schemes of high-voltage AC overhead lines, which is directly applied to the field of electric power environmental protection. Background technique [0002] According to the requirements of the "Environmental Impact Assessment Law of the People's Republic of China" and the "Regulations on the Administration of Environmental Protection of Construction Projects" (Decree No. 253 of the State Council), all development and construction projects need to undergo environmental impact assessment during the feasibility study stage. Construction can only start after the project has passed the environmental impact assessment and obtained the approval of the environmental protection administrative department. At present, the power transmission and transformation projects with a voltage level of 110kV and ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F7/00
Inventor 刘新朱寰王旭曹文勤余寒左漪赵刚张峰杨光俊杨凯
Owner STATE GRID CORP OF CHINA
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