Title :
Continuum gradient-based shape optimization of conducting shields for power frequency magnetic field mitigation
Author :
Liu, Yueqiang ; Sousa, P., Jr. ; Salinas, E. ; Cruz, P. ; Daalder, J.
Author_Institution :
Dept. of Appl. Mech., Chalmers Univ. of Technol., Goteborg
fDate :
4/1/2006 12:00:00 AM
Abstract :
A shape optimization technique for quasistatic field problems has been developed. The optimization is based on computing the continuum sensitivity function by solving an adjoint problem. We show how this technique can be used to compute, in a very efficient way, the optimal shape of a conducting (or ferromagnetic) shielding structure, in order to minimize the magnetic field in the region of interest. A two-dimensional example of shielding three-phase underground cables is considered
Keywords :
conducting materials; gradient methods; magnetic fields; magnetic shielding; optimisation; conducting shielding structure; conducting shields; continuum gradient-based shape optimization; continuum sensitivity function; ferromagnetic shielding structure; power frequency magnetic field mitigation; quasistatic field problems; three-phase underground cables; Cables; Conductors; Design optimization; Eddy currents; Frequency; Magnetic shielding; Magnetostatics; Power engineering and energy; Power engineering computing; Shape; Continuum gradient; eddy currents; magnetic shielding; optimization methods;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871372
