Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Improved Saw Tooth Carrier PWM Method for Three Phase Voltage Source Inverters

3상 전압원 인버터를 위한 개선된 톱니 반송파 펄스 폭 변조 방법

  • Park, In-Gyu (Dept. of Control and Instrumentation Eng., Won Kwang University)
  • 박인규 (원광대학교 공과대학 제어계측공학과)
  • Published : 1995.11.18
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Abstract

An improved carrier PWM method for three phase voltage source inverters is proposed. The basic idea of the proposed method is deleting unnecessary 1/3 of switchings in the saw tooth carrier PWM method. The lowest frequency of the remained harmonics of this method (when the modulation index is large) is about 50% higher and the maximum modulated voltage is about 15% higher than those of the triangular carrier PWM method. This method will be useful especially in the linear feedback current control and MOSFET inverters.

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