Abstract
Magnetic-geared permanent magnet (MGPM) electrical machine is a new type
of machine by incorporating magnetic gear into PM electrical machine, and
it may be in operation with low-speed, high-torque and direct-driven. In
this paper, three types of MGPM machines are present, and a quantitative
comparison among them is performed by finite element analysis (FEA). The
magnetic field distribution, stable torque and back EMF are obtained at
no-load. The results show that three types of MGPM machine are suitable
for different application fields respectively according to their own
advantages, such as high torque and back EMF, which form an important
foundation for MGPM electrical machine research.
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