| Abstract |
The characteristics of flux-switching permanent magnet machines (FSPMM) and dc-excited flux-switching machines (DCE-FSM) are different, leading to different principles for the machine design. In this paper, comparative analysis is performed on the two types of machines using both analytical and numerical methods. Differences between FSPMM and DCEFSM are found in correlations between certain parameters and the machine performance as well as in the performance limits. Regarding the selection and design of FSMs for certain applications, conclusions are drawn that compared to FSPMM, a DCE-FSM is generally more capable in applications where a wide speed range is required, while an FSPMM can usually provide a larger torque than the DCE-FSM in the same volume. Furthermore, for both machines the torque density can be optimized by minimizing the slot number and maximizing the radial dimensions, however, the performance of DCE-FSM presents a higher sensitivity with respect to these parameters than that of FSPMM. |
