The Shading Effect on Photovoltaic Generator (GPV) Based on Reverse Osmosis (RO) Desalination System in Algeria
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Date
2022-08-01
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European Journal of Electrical Engineering
Abstract
This paper investigates the performances analysis of PV-RO desalination system under
uniform and non-uniform irradiance conditions. The main objective is the application of
Extremum Seeking Control (ESC) to the GPV side in order to overcome the generated
power and water quantity losses to improve the performance of the whole system. The
technical design of the developed system is based on an existing RO desalination unit
beside that real climatic data taken from a local mast are involved in this study. The
modeling of the whole system and the control techniques adopted in this study are fully
formulated. The whole system is modeled and controlled using MATLAB/Simulink.
Different scenarios (healthy and shaded) based on real climatic data have been used to
carry out the results. The ESC used shows its effectiveness to extract maximum power
under shaded conditions for all the proposed scenarios. Compared with conventional
controllers, this technique can offer extra power surrounding 685W in several cases.
Furthermore, the shading conditions can affect widely freshwater production whose losses
are estimated at around 82.91% for critical scenarios. The findings results are very
significant for industrialists working in this field.