• Title/Summary/Keyword: 지역극대전력점

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Pattern Analysis of Maximum Power Point by means of Solar Cell Module Array Simulation (태양전지 모듈 어레이 시뮬레이션을 이용한 최대전력점 패턴분석)

  • Jeong, Ji-Won;Park, In-Gyu;Hwang, Kuk-Yeon;Ahn, Tae-Chon
    • Journal of the Korean Institute of Intelligent Systems
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    • v.23 no.1
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    • pp.72-79
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    • 2013
  • In the paper, a pattern analysis to decide whether the 1st local peak power point near open circuit voltage is the global peak power point or not, in case that the voltage and current at the 1st local peak power point are in a specific range, for Maximum Power Point Tracking on the photo voltaic power conversion system. When a solar cell panel array is shaded partially, multi-local peak power points can occur. That makes it hard to search the global peak power point. Through Tableau analysis using by piecewise linear solar cell model, V-I characteristic of a solar cell panel array circuit when partial shading problem happens, is simulated. The global peak power and the local peak power points is confirmed by simulations. Voltage and current values and patterns of V-I characteristic are analyzed. The generating efficiency of the solar cell panel array is improved, when the solar cell panel array circuit is operated at the power point estimated by setting up specific range.