Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Optimized Sine-Wave Modulation of Multi-Level inverters for Electric Propulsion System

멀티레벨 인버터의 Optimized Sine-Wave Modulation

  • 진선호 (한국해양대학교 대학원 기관시스템공학과) ;
  • 조관준 (한국해양대학교 대학원 메카트로닉스공학과) ;
  • 곽준호 (한국해양대학교 대학원 메카트로닉스공학과) ;
  • 오진석 (한국해양대학교 선박전기전자공학부)
  • Published : 2005.11.01
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Abstract

This paper is analyzed a new modulation method of OSW(Optimized Sine-Wave) modulation strategy for cascaded H-bridge multi-level inverter. The inverter structure was modified with the maximum output voltage level, and the switching angle was calculated easily to adjust the requested Vrms of the output. The suggested modulation method could make output waveform very close to the ideal sine wave, and the THD value was improved also remarkably.

Keywords