A Novel Sandwichend Permanent Magnet Switched Flux Machine with E-core Stator Configuration

A sandwiched permanent magnet switched-flux (SPM-SF) machine with E-core stator configuration is proposed and investigated in this paper. To validate the merits of the proposed E-core topology, a traditional C-core SPM-SF configuration is selected as a benchmark. Then, the basic electromagnetic performances of the two SPM-SF machines are simulated by finite element (FE) method to present a comparison. The simulated results demonstrate that the E-core configuration shows a higher effective air-gap field working harmonic amplitudes and higher torque ability than its corresponding C-core counterpart.