Improvement of the Output Voltage Waveform Using 3 Step Inverter

3 스탭 인버터론 이용한 출력파형 개선법

  • 서윤철 (전북대학교 전기공학과) ;
  • 이수원 (전북대학교 전기공학과) ;
  • 김영민 (전북대학교 전기공학과) ;
  • 박현철 (정읍공업전문대학 전기과) ;
  • 유철로 (전북대학교 전기공학과)
  • Published : 1997.07.21

Abstract

In this paper, new photovoltaic system that has 3 step output voltage is proposed. This system use new PWM method named as equivalent area PWM. This method is based on the criterion of the calculation that each area of voltage pulses equals to the integrated value of each time shared division of the reference sinusodial waveform to make a PWM pulse. We applyed this method to 2 step inverter and 3 step inverter and analyzed waveform using FFT.

Keywords