대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 하계학술대회 논문집 B
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- Pages.1253-1255
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- 2003
PWM 컨버터를 이용한 계통연계형 태양광발전 시스템
A Utility Interactive Photovoltaic Generation System Using PWM Converter
- 정정훈 (명지대학교) ;
- 조정민 (명지대학교) ;
- 전기영 (명지대학교) ;
- 이승환 (대덕대학) ;
- 오봉환 (명지전문대학) ;
- 김성남 ((주)두이전기통신) ;
- 김용주 (동양공업전문대학) ;
- 한경희 (명지대학교)
- Chung, J.H. (Myongji Univ.) ;
- Jho, J.M. (Myongji Univ.) ;
- Jeon, K.Y. (Myongji Univ.) ;
- Lee, S.H. (Taedok College) ;
- Oh, B.H. (Myongji College) ;
- Kim, S.N. (Tole.Tec Co.) ;
- Kim, Y.J. (Dongyang Technical College) ;
- Han, K.H. (Myongji Univ.)
- 발행 : 2003.07.21
초록
Since the residential load is an AC load and the output of solar cell is a DC Power, the photovoltaic system needs the DC/AC converter to utilize solar cell. In case of driving to interact with utility line, in order to operate at unity power factor, converter must provide the sinusoidal wave current and voltage with same phase of utility line. Since output of solar cell is greatly fluctuated by insolation. it is necessary that the operation of solar cell output in the range of the vicinity of maximum power point. In this paper DC/AC converter is three phase PWM converter with smoothing reactor. And then, feedforward control used to obtain a superior characteristic for current control and digital PLL circuit used to detect the phase of utility line.
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