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유도전동기 효율향상을 위한 알루미늄 및 동 다이캐스팅 적용 시의 동작특성 및 효율 비교연구
한필완(Pil-Wan Han),이주(Ju Lee) 대한전기학회 2012 전기학회논문지 Vol.61 No.1
Copper die casting motor (CDM) has a better design flexibility than aluminium die casting motor (ADM) because of the higher conductivity of copper. However, CDM has an economic and manufacturing weak point due to high copper price and high melting temperature compared to ADM. This paper describes a comparison of the design parameters, specifications, performances and material cost between CDM and ADM of 5.5kW_6P.
유효한 2차원 모델을 이용한 리니어 브레이크 성능 해석
한필완(Han Pil-wan),전연도(Chun Yon-Do),이주(Lee Ju),이관섭(Lee Kwan Seop) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents the efficient 2-D linear brake analysis model which can compensate the lateral leakage flux by changingng the airgap length and magneto-motive force(MMF). The linkage flux of the 2-D analysis is larger than that of 3-D analysis. This is caused by the assumption in 2-D analysis that geometric and physical values are constant along the perpendicular direction(z) to the analysis region. The equivalent MMF have been calculated from the linkage flux difference between the 2-D and 3-D analyses which are performed at zero velocity. The performances of the linear brake have been analyzed effectively by using the compensated 2-D models without using 3-D FEM.
Sarbajit Paul(폴 살바짓),Junghwan Chang(장정환),Pil-Wan Han(한필완) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.11
In this study a design process for the PM-assisted synchronous reluctance motor (PMASynRM) for the high speed railway traction application has been proposed. Step by step design guidelines are shown with comments on the winding design and AC loss reduction.