Improve of efficiency of Multi D.O.F spherical motor through the reduction of eddy current loss

다자유도 구형 구동 모터의 와전류 손실 저감을 통한 효율 향상 연구

Efficiency of Multi D.O.F spherical motor is one of the important performance indicators. So Through the reduction of eddy current loss on how to improve the efficiency were studied. Stator iron core's material with high permeability and resistivity of material using the eddy current loss was reduced. However, it was the disadvantages of production and economic. For these reasons, prevent eddy current loss of the iron core of multi D.O.F spherical motor as a viable alternative to motor using rotor with double-air gap.