A control strategy for PV stand-alone applications

This paper proposes a stand-alone photovoltaic (PV) system study in domestic applications. Because of the decrease in power of photovoltaic module as a consequence of changes in solar radiation and temperature which affect the photovoltaic module performance, the design and control of DC-DC buck con...

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Bibliographic Details
Published in:Journal of physics. Conference series 2015-04, Vol.596 (1), p.12010
Main Authors: Slouma, S, Baccar, H
Format: Article
Language:English
Subjects:
Algorithms
Buck converters
Cascade control
Energy storage
Energy technology
Leakage current
Maximum power tracking
Modules
Photovoltaic cells
Physics
Solar radiation
Stability
Waveforms
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Summary:This paper proposes a stand-alone photovoltaic (PV) system study in domestic applications. Because of the decrease in power of photovoltaic module as a consequence of changes in solar radiation and temperature which affect the photovoltaic module performance, the design and control of DC-DC buck converter was proposed for providing power to the load from a photovoltaic source.In fact, the control of this converter is carried out with integrated MPPT (Maximum Power Point Tracking) algorithm which ensures a maximum energy generated by the PV arrays. Moreover, the output stage is composed by a battery energy storage system, dc-ac inverter, LCL filter which enables higher efficiency, low distortion ac waveforms and low leakage currents. The control strategy adopted is cascade control composed by two regulation loops.Simulations performed with PSIM software were able to validate the control system.The realization and testing of the photovoltaic system were achieved in the Photovoltaic laboratory of the Centre for Research and Energy Technologies at the Technopark Borj Cedria. Experimental results verify the effeciency of the proposed system.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/596/1/012010