Enhancement of the rooftop Photovoltaic array characteristic interconnected by the grid under partial shading condition by using cascaded DC/DC converter

AUTHOR(S):

Ahmed M. Mahmoud, Salah M. Saafan, Ahmed M. Attalah

TITLE

Enhancement of the rooftop Photovoltaic array characteristic interconnected by the grid under partial shading condition by using cascaded DC/DC converter

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ABSTRACT

The photovoltaic (PV) Power generation is the best source of renewable energy due to advantages such as free fuel cost, cleanness, little maintenance, and causing no noise due to absence of moving parts. The Egyptian government moves towards encourage the consumer to generate electricity from PV array and issues new electricity law that allow the consumer to sell the surplus of the generated power of PV to utility. The partial shading is one of the obstacles of the propagation of the generation of electricity by PV array. Partial shading may be occurs due to clouds, trees and neighbor building. This paper propose a new method for optimization the power of a rooftop photovoltaic (PV) array connected to grid under partial shading. This paper provides a comparative literature review on methods to mitigate these effects and the drawbacks of this methods. This paper represent the components of the interconnection between the rooftop PV array and the grid. The Maximum power point (MPP) achieved by perturb and observe technique which control the duty cycle of the buck boost converter. The proposed technique increased the output power of the PV and output efficiency during the partial shading condition.

KEYWORDS

Partial shading; Cascaded DC/DC converter; MATLAB Simulink; rooftop Photovoltaic array, on grid Photovoltaic.

REFERENCES

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Cite this paper

Ahmed M. Mahmoud, Salah M. Saafan, Ahmed M. Attalah. (2018) Enhancement of the rooftop Photovoltaic array characteristic interconnected by the grid under partial shading condition by using cascaded DC/DC converter. International Journal of Power Systems, 3, 42-52