Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2006.07b
- /
- Pages.1181-1182
- /
- 2006
Characteristics analysis of Residential 3kW PV System
주택용 3kW 태양광발전시스템의 구성요소법 특성 분석
- Bian, W.J. (Chosun university) ;
- Piao, Z.G. (Chosun university) ;
- Lim, H.W. (Korea Electric Testing Institute) ;
- Lee, K.Y. (Chosun university) ;
- Cho, G.B. (Chosun university) ;
- Baek, H.L. (Chosun university)
- 변문걸 (조선대학교 전기공학과) ;
- 박정국 (조선대학교 전기공학과) ;
- 임홍우 (한국전기전자시험연구원) ;
- 이강연 (조선대학교 전기공학과) ;
- 조금배 (조선대학교 전기공학과) ;
- 백형래 (조선대학교 전기공학과)
- Published : 2006.07.12
Abstract
The solar power system comprises a solar battery that directly converts light energy to electrical energy with a photovoltaic effect and a power converter system, that is, inverter that converts direct current power, which is generated from solar battery to common alternating current. In this paper, database was constituted through remote monitoring supervision measurement for the long-time positive operation of 3kW solar power system installed within the solar energy positive research complex of Chosun University. As a result of analyzing the reduction of the efficiency of solar battery and inverter that are compositional components of PV system through an analysis on the acquired data, the PV output was proven over 65% of the total output when insolation intensity exceeded 600W/m2 in 2005, and the array conversion efficiency dropped much more than rating; meanwhile, insolation intensity dropped below 600W/m2. Therefore, it has been demonstrated that approximately 35% of the entire amount of PV output operated under the condition that the inverter efficiency rate dropped rapidly by 60 to 70%.
Keywords