김동규
2018-03-10T02:14:01Z
2018-03-10T02:14:01Z
2013-10
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2013, 20(5), P.1749-1754
1070-9878
1558-4135
http://ieeexplore.ieee.org/abstract/document/6633705/
http://hdl.handle.net/20.500.11754/44576
An application of a functionally graded material (FGM) to the solid spacer in gas insulated switchgears (GISs) can reduce the electric field concentration at the specific region, for example, the anode or the interface between the spacer and the gas. However, the electric field stress near the triple junction of the grounded electrode with a rounded shape, which remarkably affects the insulation capability of the GIS, inversely related. Therefore, in order to prevent this, it is necessary to modify the grounded electrode geometry in the common Cubicle-GIS and apply the elliptical FGM spacer with a reverse-direction variation unlike the permittivity variations of the existing unidirectional or bidirectional distributions. In this paper, we found the proper distribution of dielectric permittivity, dug a groove in the grounded electrode near the triple junction, and performed the optimization of this grounded electrode configuration by using the design of experiments (DOE). Consequently, the electric field stress in the triple junction of the grounded electrode can be effectively reduced by using the optimally designed grounded electrode shape applying the FGM spacer.
en
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Functionally graded material (FGM)
gas insulated switchgear (GIS)
FGM spacer
triple junction
optimization
SPACER CONFIGURATION
OPTIMAL-DESIGN
Optimization of a Grounded Electrode Shape in Gas Insulated Switchgear with a Reversely Elliptical Permittivity Graded Insulator
Article
20
10.1109/TDEI.2013.6633705
1749-1754
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
Ju, Heung-Jin
Ko, Kwang-Cheol
Kim, Dong-Kyue
2013010172
S
COLLEGE OF ENGINEERING[S]
DEPARTMENT OF ELECTRONIC ENGINEERING
dqkim