Abstract
In this study, we revisit the newly proposed high torque density double stator (DS) wound-field flux modulation machines (WF-FMMs) to highlight the important electromagnetic design performance concepts and provide parametric evaluation based on the ampere-turn excitation and armature windings. The topology of the DS machines to be considered is narrowed down to two variants of same stator types – the wound-field flux switching machine (WF-FSM) and the DC-excited Vernier reluctance machine (DC-VRM) – and both resized to ~1.5 kW to facilitate prototype fabrication and experimentation, for the first time. The preliminary performance and ampere-turn parametric evaluation based on similar design constraints and undertaken in finite element analyses (FEA), show the DS WF-FSM exceeding its counterpart in terms of torque capability and efficiency, while producing both sinusoidal and symmetric phase quantities. On that basis, the DS WF-FSM is primed for experimentation, and it is currently under construction.
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