GIS support design method based on topological optimization and GIS support

Abstract

The invention provides a GIS support design method based on topological optimization and a GIS support, and relates to the technical field of high-voltage power transmission. The method comprises the following steps: firstly, establishing a GIS support initial structure model, importing the structure model into finite element analysis software, establishing a topological optimization density model, simulating a load setting boundary condition under a special working condition, taking the density of each grid unit in an optimization region as an optimization variable, taking the maximum rigidity and the minimum volume as optimization targets, and establishing a topological optimization density model; a finite element analysis method and a topological optimization algorithm are utilized to optimize and obtain a structure which meets requirements and is smaller in size, and finally the GIS support structure with the steel frame as a main body is further designed and obtained according to actual process requirements. The finally designed GIS support comprises four main supporting beams, fixed cross beams, supporting web members, supporting ribs, reinforcing plates and an equipment base. The main supporting structure of the GIS support structure is of a novel steel beam structure with the cross section shaped like the Chinese character'tian ', and compared with a traditional I-shaped beam and angle steel, the rigidity is higher, and the shock resistance is higher.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission, in particular to a topology optimization-based GIS support design method and a GIS support. Background technique [0002] With the improvement of social modernization and industrialization level, the role of power system is getting stronger and stronger, and the importance of substation as a key link of power system is self-evident. However, my country is located in the middle of the world's two major seismic belts, the Eurasian seismic belt and the Pacific Rim seismic belt. It is one of the countries where earthquakes occur frequently. Due to the lack of anti-seismic performance of the support, it is of great significance to improve the anti-seismic ability of the GIS support for the modernization of my country's power system. While ensuring the safe and stable operation of the structure, the amount of structural materials should be reduced as much as possible for the sake...

AI Technical Summary

Problems solved by technology

[0003] At present, the support used for GIS generally adopts a truss structure composed of material steel, and the components or parts are usually connected by welds, bolts or rivets, which is convenient for installation but insufficient in shock resistance

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