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이준환(JoonHwan LEE),이현동(HyeounDong LEE),채귀한(KwiHan CHE) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
In this paper, with analysis of the power ratings of electric motors and the dc-link voltage for the inverter systems in recent hybrid vehicles, the trend for the state of the art will be predicted. One of the leading companies for the hybrid vehicles tends to increase the power rating with the higher dc-link voltage in the inverter system. However, other most companies tend not to increase the power ratings. This paper explores such a trend and looks into the loss of power devices and the copper loss of the electric motors with various dc-link voltages. In addition, the proper dc-link voltage will be determined by the power rating of the electric motor with simulation results.