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首页> 外文会议>2016 2nd International Conference of Industrial, Mechanical, Electrical and Chemical Engineering >Electric field optimization on 150 kV GIS bushing using functionally gradient material
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Electric field optimization on 150 kV GIS bushing using functionally gradient material

机译：使用功能梯度材料优化150 kV GIS套管的电场

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摘要

This paper deals with the electric field optimization on the bushing of 150 kV Gas Insulated Substation (GIS) using functionally gradient material (FGM). The basic bushing insulation model is made from oil impregnated paper with permittivity equals 4. The dimension of the model of the bushing before and after modification is the same. FGM is done by reducing the size of the bushing insulation basic model up to 90% and adding the material whose higher permittivity on the top of the basic material up to 100%. Mica with relative permittivity 9 is chosen as grading material. Therefore the bushing with FGM consist of oil impregnate paper with relative permittivity 4 and mica with relative permittivity 9. The mica material is placed between the conductor and oil impregnated paper. The maximum electric field intensity on 150 kV GIS bushing without modification is 80.54 kV/cm. The maximum electric field intensity is still below the electric field breakdown of oil impregnated paper (284 kV/cm). FGM modification with Mica layer reduces the maximum electric field on spacer to 66. 55 kV/cm.
机译：本文针对使用功能梯度材料（FGM）的150 kV气体绝缘变电站（GIS）的套管进行电场优化。基本的套管绝缘模型是由浸油纸制成的，其介电常数等于4。修改前后的套管模型尺寸相同。通过将套管绝缘基本模型的尺寸减小最多90％，并在基本材料的顶部添加其较高介电常数的材料最多100％，来完成FGM。选择具有相对介电常数9的云母作为分级材料。因此，带有FGM的套管由介电常数为4的油浸纸和介电常数为9的云母组成。云母材料放置在导体和油浸纸之间。未经修改的150 kV GIS套管的最大电场强度为80.54 kV / cm。最大电场强度仍低于浸油纸的电场击穿电压（284 kV / cm）。用云母层进行的FGM改性将垫片上的最大电场降低到66. 55 kV / cm。

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