Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The development and operation characteristics analysis of PCS applied PV Output Senseless (POS) MPPT

PV Output Senseless (POS) MPPT 제어법이 적용된 단상 PCS 개발 및 운전특성 분석

  • Lee, Seok-Ju (Dept. of Electrical Engineering, Changwon National University) ;
  • Park, Hae-Yong (Dept. of Electrical Engineering, Changwon National University) ;
  • Kim, Gyeong-Hun (Dept. of Electrical Engineering, Changwon National University) ;
  • Seo, Hyo-Ryong (Dept. of Electrical Engineering, Changwon National University) ;
  • Park, Min-Won (Dept. of Electrical Engineering, Changwon National University) ;
  • Yu, In-Keun (Dept. of Electrical Engineering, Changwon National University)
  • 이석주 (국립창원대학교 전기공학전문) ;
  • 박해용 (국립창원대학교 전기공학전문) ;
  • 김경훈 (국립창원대학교 전기공학전문) ;
  • 서효룡 (국립창원대학교 전기공학전문) ;
  • 박민원 (국립창원대학교 전기공학전문) ;
  • 유인근 (국립창원대학교 전기공학전문)
  • Published : 2007.07.18
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Abstract

The purpose of this study for photovoltaic (PV) generation system is to keep the output power of photovoltaic cells maximized under any weather conditions. In a conventional MPPT (Maximum Power Point Tracking) control method, both voltage and current coming out from PV array have to be fedback. Thus, the system has a complex structure, and may fail to track MPP of PV array when unexpected weather conditions happen. This paper proposes a novel PV Output Senseless (POS) control method to solve the mentioned problem. The main advantage of this method is that the current flowing into load is the only one considerable factor. In case of a huge PV generation system, it can be operated much more safely than the conventional system. To verify this theory, results that compare and analyze the simulated data with experimental data under real weather condition of the manufactured PV generation system are shown in this paper. Authors vividly states that this theory uses constant resistors and variable resistors of DC-DC converter in PV system. Authors emphasize that it is a very useful method to maximize power from PV cells to load with only the feedback of load current. Authors also emphasize that this theory is applicable in case of the PCS in PV power generation system.

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