IMPROVMENT OF INACCURACIES ON LOCAL FIELS IN COMPLEX STRUCTURE MAGNETODYNAMIC PROBLEMS BY A SUBPROBLEM METHOD

Abstract

Modeling of magetodynamic problems plays an important role in electrical and electronic equipments and electrical systems. Thus, a mathematic model is presented to research and compute distributions of local fields (magnetic fields, eddy currents, joule power losses…) in the above systems being very necessary and meaningfull for researchers and designers, in particular to complex structure magnetodynamic problems. In this paper, a subproblem method is proposed for magnetic vector potential formulations to analyse and correct errors of local fields appearing near edges and corner effects of thin shell models. The development of the method is illustrated and validated on a practical test.