Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Modeling of Static Var Compensator with Hybrid Cascade 5-level PWM Inverter Using Circuit DQ Transformation

회로 DQ 변환을 이용한 하이브리드 Cascade 5-레벨 PWM 인버터를 포함하는 무효전력보상기의 모델링

  • 최남섭 (여수대학교 전기 및 반도체공학과)
  • Published : 2002.05.01
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Abstract

Hybrid cascade multilevel PWM inverter has advantages of hybrid structure which enhances the better utilization of power semiconductor switches, that is, both hi호 power-low frequency switch, GTO and low power-high frequency switch, IGBT can be used in the same circuit. In this paper, a static var compensator using hybrid cascade 5-level PWM inverter is presented for high voltage/high power applications. The proposed system is modelled by circuit DQ transformation, and thus an equivalent circuit is obtained which reveals the important characteristics of the system and lead to the related equations. Finally, circuit structure and characteristics is presented and the validity of the characteristics analysis is shown through PSIM simulation.

Keywords

References

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