Design improvement and performance analysis of 12S-10P permanent magnet flux switching machine with field excitation coil

Abstract EN

This paper addresses design improvement and performance analysis of 12S-10P permanent magnet flux switching machine (PMFSM) with field excitation coils (FECs).

PMFSM with additional FECs has several attractive features when compared with conventional permanent magnet (PM) machines due to its variable flux control capability as well as robust rotor structure suitable for high torque and high speed applications.

However, the original design machine has a limitation of operating in high current density condition due to nonessential magnetic saturation that prevents the machine from extracting the maximum performances.

To overcome this problem, some design refinements are conducted by using deterministic optimization method to gain a better performance in the maximum torque and power production.

The results simulated by 2D finite element analysis (FEA) show that the improved design machine has increased the maximum torque by approximately 11.6 %, when compared with the original design.