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Thermal Analysis of High Speed Induction Motor by Using Lumped-Circuit Parameters
한필완,최재학,김동준,전연도,방덕제 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.5
This paper deals with the electromagnetic and thermal analysis of high speed induction motor. The induction motor is analyzed by time-varying magnetic finite element method and its thermal analysis is carried out by using analytical lumped-circuit method. Analysis results are compared with the experiment of 29kW high speed motor prototype at 12,000rpm.
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.
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.