Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A PWM Method for Single-Phase 3-Level High Power Rectifiers

단상 3레벨 대용량 정류기의 PWM방법

  • Cho, S.J. (Intelligent System Control Research Center, KIST) ;
  • Song, J.H. (Intelligent System Control Research Center, KIST) ;
  • Kim, Y.D. (Intelligent System Control Research Center, KIST) ;
  • Choy, I (Intelligent System Control Research Center, KIST) ;
  • Yoo, J.Y. (Dept. of Electrical Eng. Korea Univ.)
  • 조성준 (한국과학기술연구원 지능제어연구센터) ;
  • 송중호 (한국과학기술연구원 지능제어연구센터) ;
  • 김용덕 (한국과학기술연구원 지능제어연구센터) ;
  • 최익 (한국과학기술연구원 지능제어연구센터) ;
  • 유지윤 (고려대학교 전기공학과)
  • Published : 1998.07.20
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Abstract

This paper presents a simple switching method to generate a PWM pattern mostly relevant to signle-phase three-level PWM rectifier. The adopted PWM switching pattern is performed in a manner similar to the space vector PWM method, which is popularly used in the three-phase rectifier and inverter. A set of possible voltages has been selected so that an equation with a time integral considered within a sampling period should be satisfied every sampling time. The simulation result shows that the proposed control scheme is good in some performance criteria such as unity power factor, low harmonic distortion of input current, dynamic response and voltage balancing of two series-connected DC capacitors.

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