Abstract
In this article, a new consequent-pole segmented dual-stator permanent magnet (CPSDSPM) machine, which is used for some high-torque and low-speed applications, is proposed. This proposed machine adopts two stators, in which the external stator is segmented into three parts. The intermediate rotor is sandwiched between the internal stator and the external stator. Due to a particular coupling effect between the internal stator and the external stator, the CPSDSPM machine can inherently exhibit excellent flux-enhancing ability and output capability. The configuration of this proposed machine is introduced. The working mechanism especially the coupling effect is discussed by analytical models. The electromagnetic properties, such as the no-load back electromotive force (back EMF), the cogging torque, the output capability, and the torque ripple, are all calculated and analyzed by the finite element (FE) method. It can be seen that the simulating results can verify the correctness of the theoretical analysis and the superiority of the proposed CPSDSPM machine. A prototype machine is fabricated and tested to validate the results of the FE analysis.
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