Design and performance of interior permanent magnet motors with saturating magnetic bridge

Permanent magnet (PM) machines are capable of high efficiency, high power density and extremely wide power operating range. With these characteristics there has been considerable interest in applying them for motion control and robotic applications. Due to their high efficiency, PM machines are ideal general drives in many consumer goods to reduce energy consumption and improve performance. This paper outlines design, fabrication and simulation of interior permanent magnet machines (IPM) with and without saturating magnetic bridge. Based on the study, an IPM is fabricated, tested and performance compared with an equivalent induction motor. The design details of the fabricated IPM machine are also given.