A Novel PWM Swiching Technique for Conducted EMI Reduction in Vector-Controlled Induction Motor Drive

유도전동기 벡터제어 시스템의 EMI저감을 위한 새로운 PWM기법

This paper describes the application of newly developed conducted EMI reduction technique of SVPWM in induction motor drive. The newly developed common mode voltage reduction SVPWM technique doesn't any zero-voltage vector states for inverter control. Hence it can restrict the common mode voltage better than conventional PWM technique. The proposed technique is verified through simulation and experimental results. And by applying vector-controled system, the proposed technique have superior ability of reducing EMI and equal control performance comparing conventional SVPWM technique.