Auto executives across the globe have raised urgent concerns that an impending shortage of rare earth magnets from China used ...

Abstract: In order to achieve the motion with multi-degree-of-freedom (multi-DOF) of the permanent magnet spherical motor, it is necessary to accurately obtain the rotor orientation of the spherical ...

Abstract: A five-phase fault-tolerant permanent-magnet (FTPM) motor can offer high torque density, low torque ripple, and good fault-tolerance. To improve operational performance under open-circuit ...

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