Boost Converter Modelling of Photovoltaic Conditioning System Considering Input Capacitor

입력 커패시턴스를 포함한 PV Boost Converter 모델링

  • 최주엽 (광운대학교 전기공학과) ;
  • 이기옥 (광운대학교 전기공학과) ;
  • 최익 (광운대학교 정보제어공학과) ;
  • 송승호 (광운대학교 전기공학과) ;
  • 유권종 (한국에너지기술연구원)
  • Published : 2008.10.30

Abstract

Photovoltaic conditioning systems normally use a maximum power point tracking (MPPT) technique to deliver the highest possible power to the load continuously when variations occur in the insolation and temperature. A unique method of tracking the maximum power points (MPPs) and forcing the boost converter system to operate close to these points is presented through deriving small-signal model and transfer function of boost converter considering input capacitor. This paper aims at modeling boost converter including fairly large equivalent series resistance(ESR) of input reservoir capacitor by state-space-averaging method and PWM switch model. In the future, properly designed controller for compensation will be constructed in 3kw real system for maximum photovoltaic power tracking control.

Keywords

References

  1. 최주엽, 유권종, 이동기, 이기옥, 정영석, 김기현,"커패시턴스 내부저항을 고려한 태양광용 Boost 컨버터에 대한 MPPT 제어 알고리듬 고찰", 2001 추계 전력전자학회지, pp. 109-114
  2. 한찬영, "계통연계형 태양광발전시스템의 태양전지 출력단 전압제어에 관한 연구", 2001년 건국대학교 공학석사 학위 논문
  3. Ned Mohan, Tore M. Undekand, W.P. Robbins, "Power Electronics: Converter, Application, and Design", John Wiley, pp. 323-331
  4. KHAI D.T. NGO, "Alternate Forms of PWM Switch Model", Proceedings of the IEE Vol. 35, NO. 4 Oct. 1999
  5. Ediwin van Dijk, Herman J.N Spruijt, " PWM-Switch Modelling of DC-DC Converter", Proceeding of IEEE 1995
  6. Daniel W. H Art, "Introduction to Power Electronics", Prentice Hall, pp. 408-420