Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of Solar Power System of Driving a Hybrid LED Streetlight

LED 가로등 구동용 하이브리드 태양광 전원장치 개발

  • Park, Dae-Su (School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education) ;
  • Oh, Sung-Chul (School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education)
  • 박대수 (한국기술교육대학교 전기전자통신공학부) ;
  • 오성철 (한국기술교육대학교 전기전자통신공학부)
  • Received : 2012.07.09
  • Accepted : 2012.12.06
  • Published : 2012.12.31
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Abstract

General solar street light system needs two separate power supply for charging the battery and driving LED Lamp. In this study, one power supply is used for both charging battery and driving LED lamp. In particular, in order to increase the efficiency of the equipment, (maximum power point tracking: MPPT) was applied which is widely adopted in grid-connected solar systems. LED driver embodied using current control routine of charger into Essential constant current system.

태양광 가로등 시스템에 사용되는 전원 장치는 배터리 충전을 위한 충전기와 LED Lamp를 구동하기 위한 LED 드라이버로 구성되어 있는데 일반적인 시스템에서는 별도의 전원장치로 구성되어 있다. 본 연구에서는 충전기와 LED 드라이버를 한 개의 전원장치로 구성하였다. 특히 장치의 효율을 높이기 위하여 계통 연계형 태양광 발전시스템에 적용하는 최대전력추적(Maximum Power Point Tracking: MPPT) 방식을 충전기에 적용하였다. LED 드라이버에 필수적인 정전류 방식은 충전기의 전류제어 루틴을 사용하여 구현하였다.

Keywords

References

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