Analysis of In-plane Eddy-current Loss in Electrical Steel Sheets of 6-pole 36-slot Permanent-magnet Synchronous Machines

Ohguchi, Hideki; Kawakami, Kotaro; Hirayama, Takehisa; Imamori, Satoshi; Yamazaki, Katsumi

doi:10.23919/icems50442.2020.9291183

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous research, we have analysed the in‐plane eddy‐current loss in PMSMs ranging from 5 to 50 kW using 3D electromagnetic field analysis and reported that the iron loss is proportional to the output power of the PMSM, whereas the in‐plane eddy‐current loss is not [9]. We have also reported that the in‐plane eddy‐current loss decreases as the number of stator slots increases under the condition of the same output power and different numbers of stator slots [10].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive study on in‐plane eddy‐current loss in permanent‐magnet synchronous machines

Ohguchi,

Takigawa,

Imamori

2023

IET Electric Power Appl

Self Cite

View full text Add to dashboard Cite

In‐plane eddy‐current loss in permanent‐magnet synchronous machines has been comprehensively and analytically studied by using three‐dimensional (3D) finite element method. Considering the accuracy and calculation time, the electrical conductivity in the stack direction should be set to zero in 3D analysis. Stacking factor is also an important analytical parameter in this kind of calculation. The influences of slot number and coil‐end height have been clarified. Harmonics caused by an inverter in pulse‐width‐modulation or one‐pulse mode result in additional in‐plane eddy‐current loss, which is independent of the slot number. This behaviour can be explained by a theoretical equation of the eddy‐current loss. These results are useful for the analysis and design of highly efficient electrical machines.

show abstract

Section: Introductionmentioning

confidence: 99%