불균등 분포정수회로모델을 이용한 접지그리드의 접지임피던스 모의

초록

This paper describes the simulation method of the ground grid using non-uniform distributed circuit parameter model. In this simulatin method, the ground grid is divided into small segments and the resistive, capacitive, and inductive couplings between those segments are considered as if the segments are assured like thin wires. The distributed circuit parameters are calcaulated by Matlab program and the circuit model is implemented bt EMTP program. The simulated results of frequency-dependent grounding impedance of the grounding grid is good agreement with the measured results and the data simulated by electromagnetic field theory.