Stability Analysis of DC-DC Boost Converters Based on Output Impedance in HSS

고조파 상태 공간 출력임피던스에 기반한 DC-DC 부스트 컨버터의 안정도 해석

  • Heryanto, Nur A. (Dept. of Electrical Engineering, Yeungnam University) ;
  • Park, Bumsu (Dept. of Electrical Engineering, Yeungnam University) ;
  • Lee, Dong-Choon (Dept. of Electrical Engineering, Yeungnam University)
  • Published : 2020.08.18

Abstract

This paper proposes stability evaluation of DC/DC boost converters based on output impedance in harmonic transfer function matrix considering line impedance and cascaded voltage and current control loops. The harmonic state-space (HSS) model of converter and controller is developed to obtain the harmonic transfer function matrix of closed-loop output impedance. This work is useful for impedance-based stability analysis of converters connected to DC power systems.

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