| Title |
Decision of Optimal Magnetic Field Shielding Location around Power System Using Evolution Strategy Algorithm |
| Authors |
최세용(Choe, Se-Yong) ; 나완수(Na, Wan-Su) ; 김동훈(Kim, Dong-Hun) ; 김동수(Kim, Dong-Su) ; 이준호(Lee, Jun-Ho) ; 박일한(Park, Il-Han) ; 신명철(Sin, Myeong-Cheol) ; 김병성(Kim, Byeong-Seong) |
| Keywords |
Magnetic field shielding ; FEM ; Evolution Strategy ; Eddy Current ; Power Transmission Line ; Optimization |
| Abstract |
In this paper, we analyze inductive interference in conductive material around 345 kV power transmission line, and evaluate the effects of mitigation wires. Finite element method (FEM) is used to numerically compute induced eddy currents as well as magnetic fields around powder transmission lines. In the analysis model, geometries and electrical properties of various elements such as power transmission line, buried pipe lines, overhead ground wire, and conducting earth are taken into accounts. The calculation shows that mitigation wire reduces fairly good amount of eddy currents in buried pipe line. To find the optimum magnetic field shielding location of mitigation wire, we applied evolution strategy algorithm, a kind of stochastic approach, to the analysis model. Finally, it was shown that we can find more effective shielding effects with optimum location of one mitigation wire than with arbitrary location of multi-mitigation wires around the buried pipe lines. |