Research on the Model Simplification Based on the Three-Phase GIS Electric Field Analysis

doi:10.11985/2015.11.009

Abstract

Abstract:

The finite element method is used to high voltage electric field calculation, for the contradiction between precision and efficiency in finite element electric field analysis, a kind of model simplification principle applied in electric field finite element analysis has been put forward. Three phase busbar model of 145kV GIS has been built based on Infloytica software. With the three-phase bus bar and basin insulator as simulation target respectively, the electric field intensity distribution of the model has been analyzed under lightning impulse voltage. Chosen three-phase bus bar as simulation target, it’s located in the center of the simplified model, the electric field intensity distribution of simplified model consistent with the original model. Chosen basin insulator as simulation target, it islocated in the edge of simplified model, the electric field intensity distribution of simplified model and the original model are differences. Compared of two kinds simulation results shown that during the simplification of finite element electric field model, the analysis of the area should be located in the center position to avoid influencing the simulation accuracy caused by mutating electric field on both sides.

Key words: Electric field analysis, model simplification, finite element analysis, three phase bus bar model

CLC Number:

TM595

Li Xiaodan, Li Shuiqing , Fang Linchuan , Tian Xiaoxiao . Research on the Model Simplification Based on the Three-Phase GIS Electric Field Analysis[J]. Journal of Electrical Engineering, 2015, 10(11): 58-62.

Figures/Tables 8

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参数名称	数值
额定电压/kV	145
额定电流/A	3 150
额定频率/Hz	50
额定短时工频耐受电压/kV	275
额定雷电冲击耐受电压/kV	650

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