Small 2 Pole ALA Rotor RSM (500W, 3krpm): Comprehensive Experimental Characterization

This paper presents the preliminary experimental characterization of a small 500W, 1pole pair, shaft-less (no shaft through rotor) Axially Laminated Anisotropic - rotor Reluctance Synchronous Machine (ALA-rotor RSM). The dc current decay experiments and the laboratory setup configuration are being presented in detail. The procedure for determining the dq-axis inductance and the method for calculating the power factor (cos q» are also included. The paper presents a comprehensive comparison between the ALA-rotor RSM and a comparable induction machine in terms of efficiency and losses, but more attention should be given to measurement equipment for future experiments. The machine's performance in generator mode is investigated as well, using ac-side connected capacitors, and the results are presented for maximum speed under loading conditions ranging from 0.48 to 1.36 per unit.