On the Design and Manufacturing of Small Single Phase Induction Motors toward Super Premium Efficiency Standards

The single-phase induction motors (SPIMs) are widely used in numerous household and industrial applications and a large number of them is produced every year. If their efficiency is enhanced beyond the ordinary ratings, significant energy savings would be achieved despite their low output power. The small SPIMs have been included in the latest industrial efficiency standards. However, the so far conducted research efforts have not provided a robust and acceptable from economic and manufacturing point of view-design procedure aiming to meet this goal. Thus, the authors propose here a design methodology which guarantees both the SPIMs satisfactory starting performance and improved efficiency. The presented methodology has been applied to 1.0 HP SPIM. The derived results obtained through finite element analysis (FEA) are compared to the corresponding ones derived from other examined design approaches in order to highlight the effectiveness of the proposed methodology.