Dheeraj Bobba, Gerd Bramerdorfer, Bulent Sarlioglu,
"A Low-Pole Split Magnet Flux Switching Permanent Magnet Machine with Minimized Harmonic Distortion in Flux Linkage for High Speed Operation"
: ICEM, 2016 XXII International Conference on Electrical Machines, Seite(n) 2392 - 2398, 9-2016
A Low-Pole Split Magnet Flux Switching Permanent Magnet Machine with Minimized Harmonic Distortion in Flux Linkage for High Speed Operation
Sprache des Titels:
ICEM, 2016 XXII International Conference on Electrical Machines
Flux switching permanent magnet machines provide many advantages. Due to their superior behavior associated with sinusoidal Back-EMF and low torque ripple, topologies featuring 12 stator teeth and 10 rotor poles (12/10) are favored. However, this follows that for a given mechanical rotor speed, the required electric fundamental frequency is ten times to that of a conventional two pole PM machine imposing challenging requirements are set on the power electronics. In this paper, a 6/4 FSPM machine design is investigated since it has the lowest feasible slot-pole combination. The conventional 6/4 FSPM machine design is not a viable design due to the presence of dominant second order harmonic component of flux linkage and high torque ripple. Thus, a split magnet design is introduced which allows achieving better performance by significantly reducing the second harmonic component. A multi-objective optimization scenario is carried out utilizing an evolutionary algorithm and performing massively distributed finite element simulations on a computer cluster. The selected machine design and its particular torque characteristics are analyzed. The achieved results reveal that by considering split magnet topologies, the low slot-pole FSPM machine configurations can unlock their potential for