In response to the design requirements of high-speed and high-load-bearing bearingless magnetic levitation drive systems

a novel topology for a bearingless flux-switching permanent magnet motor with rotor magnetic levitation in five degrees of freedom was proposed

alongside a corresponding multi-objective efficient optimization design method. Firstly

the topological structure and operational principles of the motor were introduced. Then

considering the plethora of design parameters and optimization objectives inherent in the electromagnetic performance design process

alongside the time-consuming nature of optimization procedures involving parametric scanning in the finite element analysis approach

an efficient optimization design methodology was devised. This methodology consolidates global sensitivity analysis

response surface modeling

multi-objective optimization

and refined finite element optimization to ascertain the optimal structural parameters of the motor. Furthermore

the electromagnetic performance of the optimized motor was substantiated. Ultimately

an experimental prototype was developed and validated. The results demonstrate that

compared with the theoretical finite element analysis

the measured no-load back-EMF fundamental amplitude exhibits a relative error of 0.1%

while the actual output torque and suspension force show relative errors of 1.93% and 5.75%

respectively.