This paper provides an alternative approach to the finite elements method of solving magneto-static field for an efficient pre-design of electrical rotating machines [2][3]. First, the 2D volume integral formulation will be presented. Second, this formulation will be extended to periodic systems. Comparisons to the finite elements methods will be carried out to conclude on the performances of the new method presented.

This paper provides a semi-analytical approach for computing the flux linkage of a 2D meshed coil in presence of a non-linear magnetic material. First, a method for flux computation is introduced given the field obtained thanks to a volume integral method. Second, an analytical method for computing the magnetic source field and magnetic vector potential induced by a 2D meshed coil is presented, those quantities being necessary for the flux computation. Comparisons to the finite elements methods are carried out to conclude on the performances of the new method presented.