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Solar Irradiation Independent Expression for Photovoltaic Generator Maximum Power Line

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Original languageEnglish
Pages (from-to)1416-1420
JournalIEEE Journal of Photovoltaics
Issue number5
Publication statusPublished - 2017
Publication typeA1 Journal article-refereed


In order to enhance maximum power point tracking (MPPT) speed of photovoltaic generators (PVGs) upon fast irradiation changes, maximum power line (MPL)-based control is often used. MPL is a curve, linking all possible MPP coordinates for a given temperature. In the literature so far, PVG MPL was either assumed linear, which is inaccurate for all irradiation levels, or possessed photocurrent dependence, requiring real-time estimation of the latter. In this letter, an irradiation-independent explicit expression for PVG MPL is derived, valid for all practical irradiation levels, thus allowing real-time implementation without the need of photocurrent estimation.


  • Equivalent circuits, Estimation, maximum power line (MPL), Maximum power point tracking (MPPT), Multiprotocol label switching, Photoconductivity, photovoltaic generator (PVG), Photovoltaic systems, Radiation effects, single diode model

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