A global optimization method for the solution of a magnetic field synthesis problem

Author

Borghi, C.A. ; Fabbri, M.

Author_Institution

Dept. of Electr. Eng., Bologna Univ., Italy

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1897

Lastpage

1904

Abstract

The determination of the current system which produces a given magnetic field in a region of finite extent, is considered. The magnetic field synthesis problem arisen from this, is solved by means of a global optimization method. The method is based on search trajectories. This technique utilizes the expression of the gradient of the cost functional and allows one to save calculation time when the expression of it is known. The algorithm for the solution of the problem is developed for an axisymmetric electromagnetic configuration. Two applications for the determination of the poloidal current system in toroidal devices for thermonuclear fusion experiments, are considered

Keywords

electric current; inverse problems; magnetic fields; optimisation; algorithm; axisymmetric electromagnetic configuration; cost functional; current system; global optimization; gradient; magnetic field synthesis; poloidal current system; search trajectories; thermonuclear fusion; toroidal device; Cost function; Current density; Fusion reactors; Helium; Inverse problems; Magnetic analysis; Magnetic fields; Magnetic flux; Optimization methods; Toroidal magnetic fields;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.492884

Filename

492884