전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 1998년도 전력전자학술대회 논문집
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- Pages.287-290
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- 1998
변조율이 큰 전압형 컨버터의 PWM 변조방법
PWM Method of Voltage Type Converters with Large Modulation Ratio
초록
This paper presents PWM method which modulates two third period only during one cycle of power converter. This method is compared with the conventionl sinusoidal modulation method applying to the power converter with large capacity necessitating low switching frequency. The presented modulation method enables to reduce power semiconductor rating, minimize switching loss, and improve the current wave form.
키워드