Optimal Stator Slot Design of Inverter-Fed Induction Motor for Reduction of Core and Winding Losses

손실 저감을 위한 인버터 구동 유도 전동기의 고정자 슬롯 형상 최적화

In this paper, optimal stator slot shape of 3-phase inverter-fed induction motor is designed to reduce stator core and winding losses. For the analysis, the F.E.M on 1 phase band periodic condition in stator is coupled with harmonic equivalent circuit. For the optimal design, the conjugate gradient method is used as an optimizing algorithm. The stator core and winding losses are reduced by the design method. The results are verified by those of the time-step finite element analysis.