A review of maximum power point tracking techniques for use in partially shaded conditions

Partially shaded conditions (PSCs) often occur in large photovoltaic generation systems (PGSs). PSCs cause losses in system output power, hot spot effects, and system safety and reliability problems. When PSC occur, the PGS power–voltage characteristic curve exhibits multiple peak values; that is, t...

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Bibliographic Details
Published in:Renewable & sustainable energy reviews 2015-01, Vol.41, p.436-453
Main Authors: Liu, Yi-Hua, Chen, Jing-Hsiao, Huang, Jia-Wei
Format: Article
Language:English
Subjects:
Algorithms
Architecture
Circuits
Hardware
Hot spots
Maximum power
Maximum power point tracking (MPPT)
Partially shaded conditions (PSC)
Photovoltaic generation systems (PGS)
Renewable energy
Tracking
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Summary:Partially shaded conditions (PSCs) often occur in large photovoltaic generation systems (PGSs). PSCs cause losses in system output power, hot spot effects, and system safety and reliability problems. When PSC occur, the PGS power–voltage characteristic curve exhibits multiple peak values; that is, the curve comprises a global maximum power point and multiple local maximum power points. Current literature includes various studies of global maximum power point tracking (GMPPT) algorithms and hardware architectures suitable for PSC; because the substantial quantity of PSC literature, this subject must be comprehensively reviewed. To focus on GMPPT techniques used in PSC, traditional maximum power point tracking techniques and circuit architectures that cannot distinguish GMPP and LMPP were not discussed.
ISSN:1364-0321
1879-0690
DOI:10.1016/j.rser.2014.08.038