A new modular flux-switching permanent-magnet machine using fault-tolerant teeth

This paper proposes a new 3-phase flux-switching permanent-magnet (FSPM) motor for fault-tolerant (FT) applications. The key is the new motor topology which incorporates the concept of FT teeth to provide the desired decoupling among phases. The proposed modular FSPM (M-FSPM) motor is quantitatively compared with the conventional FSPM motor. The analysis results show that the proposed M-FSPM motor not only retains the merits of high power density, strong mechanical integrity, good immunity from thermal problem and high torque capability, but also offers lower torque ripple, higher average torque and lower cost than the existing one. Furthermore, the experimental results confirm the validity of the proposed motor.