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인버터 구동 시스템에서의 EMI 저감을 위한 새로운 PWM 구현
함년근(Hahm Nyon Kun),김이훈(Kim Lee-Hun),전기영(Jun Ki-Young),천광수(Chun Kwang-Su),원충연(Won Chung-Yuen),한경희(Han Kyung-Hee) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
High frequency common mode voltage produced by power inverters are a major cause of conducted EMI, creating motor ground currents, bearing currents and other harmful by products. This paper focuses on a new SVPWM method with random PWM injection to reduce conducted EMI noise. A New PWM technique associated with the common mode voltage can be significantly reducing and contributes to mitigate. The common mode voltage to 50% in comparison with that for conventional SVPWM technique. Validation of the theory and reduction methods are then performed experiment ally based on an induction motor drive.