Determination of the magnetic parameters at no‐load of a variable reluctance machine excited by DC and AC currents

Abstract

PurposeAims to determine the magnetic parameters at no‐load of a variable reluctance machine excited by DC and AC currents.Design/methodology/approachPresents the linear analytical model used to determine the electro‐magnetic variables of a stator current excited reluctance machine. The 2D FEM approach is also introduced. Then the prototype designed in the laboratory is presented and its magnetic characteristics determined. The results are calculated using both models and compared with the experimental values.FindingsAccording to the different results, apart from the atypical E(Ie) characteristic, for both excitation models, the doubly slotted machine excited by current in the stator can be modelled in a manner similar to that of a smooth rotor synchronous machine with an electromagnetic gear box.Originality/valueThis paper has succeeded in determining the magnetic parameters at no‐load of a variable reluctance machine excited by DC and AC currents.