A Computationally Efficient Method to Determine Iron and Magnet Losses in VSI-PWM Fed Axial Flux Permanent Magnet Synchronous Machines

作者：Sergeant Peter^*; Vansompel Hendrik; Hemeida Ahmed; Van den Bossche Alex; Dupre Luc

来源：IEEE Transactions on Magnetics, 2014, 50(8): 8101710.

DOI：10.1109/TMAG.2014.2308904

• Axial flux
• finite element analysis
• losses
• permanent magnet synchronous machine (PMSM)
• Preisach model
• pulsewidth modulation (PWM)

For electrical machines with a 3-D geometry, such as axial flux permanent magnet machines, the computation of iron and magnet losses in the case of pulsewidth modulation (PWM) supply could be performed by a transient 3-D finite element model (FEM) coupled with an electrical circuit. To reduce the CPU time, in this paper, these losses are computed with acceptable accuracy without using a 3-D transient FEM. The multislice technique is used with a 2-D static FEM, combined with a state space model of the machine. A Preisach hysteresis model is considered to evaluate the iron loss during minor loops. The loss in the electrical steel and in the magnets is evaluated for several PWM frequencies as well as for different segmentations of the magnets.

• 出版日期2014-8