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김재의(Jae-Yui Kim),차경수(Kyoung-Soo Cha),박민로(Min-Ro Park),임명섭(Myung-Seop Lim),홍정표(Jung-Pyo Hong) 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11
Recently, an interior permanent magnet synchronous motor (IPMSM) which has high power density and efficiency has been attracting attention for electric vehicle (EV) traction motor. Also motor design for smaller size and higher rotating speed is latest trend because it can make more space. But in high rotating speed, an induced voltage can exceed the DC link voltage. In that case, it can be difficult to control the motor and makes lower torque due to lack of voltage. In this paper, an improvement design for initial model of EV traction motor is conducted to reduce induced voltage value through shape change. In case of stator, various shape of chamfers are applied and in case of rotor, an eccentricity is applied. For each case, 2-D FEM is used for verification for value of an average torque at base rpm and a maximum induced voltage at maximum rpm. Finally, an improvement model is designed which has an induced voltage that does not exceed the DC link voltage.
Cogging Torque Reduction Design for CVVT Using Response Surface Methodology
Jae-Yui Kim(김재의),Dong-min Kim(김동민),Soo-Hwan Park(박수환),Jung-Pyo Hong(홍정표) 대한전기학회 2016 전기학회논문지 Vol.65 No.12
This paper deals with the design process for an outer-rotor-type surface-mounted permanent magnet synchronous motor (SPMSM) used in continuous variable valve timing (CVVT) systems in automobiles with internal combustion engines. When the same size, outer-rotor-type SPMSMs generate larger torque and more stable than inner-rotor-type SPMSMs. For the initial design, space harmonic analysis (SHA) is used. In order to minimize the cogging torque, an optimization was conducted using Response Surface Methodology (RSM). At the end of the paper, Finite Element Analysis (FEA) is performed to verify the performance of the optimum model.
박종현(Jong-Hyun Park),김재의(Jae-Yui Kim),김동민(Dong-Min Kim),홍정표(Jung-Pyo Hong) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
This paper deals with design precess about an outer rotor type surface mounted permanent magnet synchronous motor (SPMSM) used in continuous variable valve timing (CVVT) system in internal combustion engine automobiles. Outer rotor type SPMSM generate large torque and adequate at high rotation speed. For initial design, space harmonic analysis (SHA) is used. In order to minimize cogging torque, optimization was conducted through response surface methodology (RSM). In the end of paper, a finite element analysis (FEA) is performed to verify the performance of the optimum model.