Abstract
Nowadays flux switching machines (FSMs) offer important role in various high torque applications. In these machines, the flux sources such as field excitation coil (FEC), armature winding and permanent magnet (PM) are located in the stator while leaving the rotor part as winding less. However, FSMs with single stator associate with limited free space for active sources in stator, which leads to some drawbacks of complicated structure, less path for flux flow, flux cancellations, heat generation and demagnetizing effects. To overcome this issue, FSMs using double stator (DS) have been proposed by many researchers which provide more free space for active sources and flux to flow. Therefore, in this paper design and performance of DS FSMs with various excitation sources such as field excitation FE FSMs, PM FSMs and hybrid excitation HE FSMs are reviewed. All the highlighted insights and recommendations of this review will hopefully lead to increasing efforts towards the development of advanced DS FSMs for various applications.
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