Solar Irradiation Independent Expression for Photovoltaic Generator Maximum Power Line

Kolesnik, Sergei; Sitbon, Moshe; Lineykin, Simon; Batzelis, Efstratios; Papathanassiou, Stavros; Suntio, Teuvo; Kuperman, Alon (2017-06-28)
 
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Kolesnik, Sergei
Sitbon, Moshe
Lineykin, Simon
Batzelis, Efstratios
Papathanassiou, Stavros
Suntio, Teuvo
Kuperman, Alon
28.06.2017

IEEE Journal of Photovoltaics
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doi:10.1109/JPHOTOV.2017.2713404
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https://urn.fi/URN:NBN:fi:tty-201802141241

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<p>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.</p>
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