Optimization of a Single-Phase Induction Motor Using Finite Element Method

This study applies Finite Element Method (FEM) to optimize the speed of 3 rd harmonic of Single-Phase Induction Motor (SPIM).This work is focused on current, torque, efficiency, and losses of the SPIM using experimental and simulation-based methods.The study shows how motor behaviour, harmonic distortions, and increasing speed interact.The third harmonic content increases from 0% to 18% as the motor speed climbs from 0 to 1800 rpm.Because there is less slide, the current draw drops dramatically from 25A to 5.21A, indicating improved electrical efficiency at higher speeds.An ideal operating range at mid-level speeds is indicated by the torque, which peaks at 12.985 Nm at 1400 rpm and then decreases to 0.527 Nm at 1800 rpm.With significant peaks at 1400 rpm (67.96%) and 1600 rpm (70.87%), efficiency increases from 58.88% at 0 rpm to a maximum of 72.94% at 1800 rpm.As speed increases, mechanical losses grow from 0W to 188.52W because of windage and friction, but copper losses substantially reduce from 312.5W to 13.5721W.The overall losses exhibit a complicated pattern, decreasing around 1600 rpm and then marginally increasing at higher speeds.At higher speeds, the SPIM achieves increased efficiency despite the rise in mechanical losses and harmonic content.These results highlight how crucial it is to optimize motor design and control schemes in order to minimize the effects of harmonic distortions and balance efficiency, torque, and losses.