The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Pseudo-Random Carrier PWM Technique by Fixed Frequency Carrier Composition

고정 주파수의 캐리어 합성에 의한 준 랜덤 주파수 캐리어 PWM기법

  • 김종남 (전남대 공대 전기공학과) ;
  • 정영국 (대불대 컴퓨터정보공학부) ;
  • 임영철 (전남대 공대 전기공학과) ;
  • 박성준 (전남대 공대 전기공학과) ;
  • 김광헌 (전남대 공대 전기공학과)
  • Published : 2005.11.01
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Abstract

This paper describes a pseudo-random carrier PW technique for the power converters. The proposed method generates a new pseudo-random carrier by randomly composing a carrier with fixed frequency and a carrier with opposition phase. To confirm the validity of the proposed method, a single-phase multi-level inverter was implemented and tested. The experimental results show that the output voltage and current harmonics spectra of an inverter have broadening effect of harmonics, as only simple composition of fixed frequency carries.

Keywords

References

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