Comparative Study of Field-Excitation Flux-Switching Motor Against PMSM for ISG Application

Kwanghee Nam
Electrical Engineering, Pohang University of Science and Technology (POSTECH)


In recent years, ISG (Integrated Starter and Generator) system receives great attention for electric vehicle (EV) and hybrid electric vehicle (HEV) applications. For cost-effect machine
design, a structure of 12slot-10pole field-excitation flux switching synchronous machine (FEFSSM) is analyzed. The active parts such as the field excitation coil and armature coil are located on the stator. The rotor part consists of single piece iron makes it more robust and becoming more suitable to apply for high speed motor drive system application coupled with reduction gear. The design target is the motor with a maximum torque of 40Nm, a maximum power of 10kW and a maximum speed of 16500 rpm. Furthermore, the comparison study of an IPMSM (Interior Permanent Magnet Synchronous Motor) is presented.

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