A comprehensive assessment of maximum power point tracking techniques under uniform and non-uniform irradiance and its impact on photovoltaic systems: A review

Under shading condition, the power–voltage characteristics of the photovoltaic (PV) modules exhibit complexity with multiple numbers of peaks. Existence of multiple peaks leads to additional difficulties in tracking maximum power point (MPP) and shall mar efficiency of PV arrays under shading, if ap...

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Bibliographic Details
Published in:Journal of renewable and sustainable energy 2015-11, Vol.7 (6)
Main Authors: Kumar Dash, Soubhagya, Nema, Savita, Nema, R. K., Verma, Deepak
Format: Article
Language:English
Subjects:
Atmospheric temperature
Insolation
Irradiance
Maximum power tracking
Photovoltaic cells
Power efficiency
Shading
Solar cells
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Summary:Under shading condition, the power–voltage characteristics of the photovoltaic (PV) modules exhibit complexity with multiple numbers of peaks. Existence of multiple peaks leads to additional difficulties in tracking maximum power point (MPP) and shall mar efficiency of PV arrays under shading, if appropriate measures are not taken. It is due to the nonlinear characteristics of PV cell, maximum power can be extracted under particular weather condition. Maximum power point tracking (MPPT) techniques are used to maximize PV array output power continuously, by tracking MPP, the location of which depends on atmospheric temperature and solar insolation. The major drawbacks of traditional MPPT techniques are that they are unable to track global peak under non-uniform irradiance/insolation. Numerous techniques are reported in literature to find MPP in both under uniform insolation and partial shading condition. This paper presents a comprehensive review of various MPPT techniques under uniform and non-uniform irradiances and comparatively evaluates them for their merits and demerits. The review is helpful in selecting appropriate MPPT techniques and adjudges its impact on the given solar PV applications.
ISSN:1941-7012
1941-7012
DOI:10.1063/1.4936572