A Cost Effective DC Link Variable Inverter Using 2-Switch Buck-Boost Converter

2-스위치 Buck-Boost 컨버터를 이용한 DC 링크 전압 가변형 인버터 설계

  • 강현수 (성균관대학교 정보통신공학부) ;
  • 김준형 ((주)브이씨텍 연구소) ;
  • 이병국 (성균관대학교 정보통신공학부) ;
  • 허진 (울산학교 전기전자정보시스템공학부)
  • Published : 2009.05.01

Abstract

In this paper, a dc link voltage variable inverter system is proposed, which consists of a two-switch buck-boost converter and a four-switch inverter. In addition, as the current and torque ripples are generated by a voltage difference between back EMF and dc link voltage, these ripples could be reduced according to the controlled dc-link voltage according to the motor speed. The validity of the proposed inverter is verified by informative simulation and experimental results.

Keywords

2-switch buck-boost converter;4-switch inverter;Brushless dc motor;Controllable dc-link voltage

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