Structural design method for optimizing electromagnetic environments of extra/ultra-high-voltage power transmission lines

A technology for transmission line and structure design, which is applied in the fields of calculation, electrical digital data processing, special data processing applications, etc., and can solve the problem that various types of line structure optimization design algorithms are not proposed.

Inactive Publication Date: 2014-04-09
CHONGQING UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, most of the analysis methods used in the existing literature are aimed at a specific line, changing the line structural parameters within a certain range to obtain the change law of the

Method used

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  • Structural design method for optimizing electromagnetic environments of extra/ultra-high-voltage power transmission lines
  • Structural design method for optimizing electromagnetic environments of extra/ultra-high-voltage power transmission lines
  • Structural design method for optimizing electromagnetic environments of extra/ultra-high-voltage power transmission lines

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Embodiment Construction

[0039] 1. Calculation of power frequency electric field and power frequency magnetic field in the space under the transmission line

[0040] The power frequency electric field and magnetic field formed by high-voltage transmission lines with different structures in the space below the line have different distribution characteristics, and the field strength values ​​​​are also different in different regions. If the maximum value of off-line electricity and magnetic field can be effectively controlled, it can be ensured that the designed transmission line meets the electromagnetic environmental protection limit requirements in any area.

[0041] In order to quickly estimate the most serious power frequency electromagnetic environment generated by the transmission line, the present invention performs the following simplified processing in the calculation of the power frequency electric field and the power frequency magnetic field:

[0042] 1) Take the height from the ground of th...

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Abstract

The invention discloses a line structural optimization method for optimizing power-frequency electromagnetic environments of spaces below extra/ultra-high-voltage power transmission lines on the premise that insulation requirements of the power transmission lines and limit value requirements of the electromagnetic environments below the lines can be met. The line structural optimization method mainly includes computing power-frequency electric fields and power-frequency magnetic fields of the spaces below the power transmission lines; optimizing the structures of the lines on the basis of a particle swarm optimization algorithm. The line structural optimization method is applicable to all structural types of high-voltage power transmission lines, has the advantages of high computation speed and precision and the like, and is a useful tool for optimizing structural designs of extra/ultra-high-voltage power transmission lines.

Description

technical field [0001] The invention relates to the technical field of super / ultra-high voltage transmission line design and the field of electromagnetic environment protection, in particular to a structural design method for optimizing the electromagnetic environment of super / ultra-high voltage transmission lines. Background technique [0002] In recent years, in order to meet the demand for electricity for national economic and social development, the scale of my country's power grid has rapidly expanded, and the level of transmission voltage has also been further improved. During the "Twelfth Five-Year Plan" period, UHV, as the backbone grid of a strong smart grid, will enter the peak of comprehensive construction. The large-scale construction of the power grid has effectively alleviated the tense situation of power supply and demand in my country, but on the other hand, it has led to the deterioration of the electromagnetic field around the transmission line. Studies ha...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 肖冬萍姜克儒雷慧刘小龙张占龙
Owner CHONGQING UNIV
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