Three-dimensional analysis method of power frequency electric field in high voltage switchyard of substation

Abstract

The embodiment of the invention provides a power frequency electric field three-dimensional analysis method for a high voltage switching field of a substation, which comprises the following steps: a, carrying out modeling on the switching field of the substation to obtain a substation switching field simplified model, wherein in the step a, complex equipment and porcelain bushing struts in the substation switching field are ignored, all live conductors of the substation switching field are simplified into two horizontal and vertical forms, a line drop is not considered, and meanwhile, each equipment piezometer ring in the substation is simplified into a line conductor so as to finally obtain the substation switching field simplified model which is simplified; b, calculating simulated charges in the substation switching field simplified model by adopting a charge simulation method; c, calculating an electric field intensity value of each point in the substation switching field by adopting an iterative method according to the calculated simulated charges, and drawing a power frequency electric field distribution diagram of the substation switching field. The power frequency electric field three-dimensional analysis method for the high voltage switching field of the substation, which is provided by the embodiment of the invention, can provide technical reference for analysis and research on the electromagnetic environment of the substation.

Description

technical field [0001] The invention relates to the technical field of electric power analysis, in particular to a three-dimensional analysis method for a power frequency electric field of a high-voltage switchyard of a substation. Background technique [0002] In recent years, the number of domestic substations is increasing year by year, and the substations not only have many live equipment and complex structures, but also have high voltage levels, heavy loads, and strong fields, which are prone to electromagnetic pollution, so it is necessary to strengthen control. For the problem of power frequency electromagnetic environment, the International Committee on Non-ionizing Radiation Protection issued guidelines in 1988 to stipulate the limit value of power frequency field strength. Countries in the world have also stipulated their own national standard limit values. my country is referring to the International Committee on Non-ionizing Radiation Protection At the same time, ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the number of domestic substations is increasing year by year, and the substations are not only due to the large number of live equipment and complex structures, but also high voltage levels, heavy loads, strong fields, and easy to form electromagnetic pollution, so it is necessary to strengthen control

Images