Control of an Inverter for Photovoltaic Arrays, Using an Estimator of Short Circuit Current for Maximum Power Point Tracking

Grid connected photovoltaic systems require the use of solid state converters that allow an efficient matching between the photovoltaic generator and the utility grid. Therefore, adequate control techniques, which ensure that the PV generator operates at its point of maximum energy generation under...

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Bibliographic Details
Published in:Revista IEEE América Latina 2015-10, Vol.13 (10), p.3294-3303
Main Authors: Trujillo Rodriguez, Cesar Leonardo, Diaz Aldana, Nelson Leonardo, Hernandez Mora, Johann Alexander
Format: Article
Language:English
Subjects:
Arrays
Computer simulation
Estimating
Fuzzy System
Generators
Integrated circuit modeling
Inverters
Maximum power
Maximum power point trackers
Maximum Power Point Tracking
Photovoltaic cells
Photovoltaic System
Photovoltaic systems
PV-Inverter
Short-circuit currents
Solar cells
Tracking
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Summary:Grid connected photovoltaic systems require the use of solid state converters that allow an efficient matching between the photovoltaic generator and the utility grid. Therefore, adequate control techniques, which ensure that the PV generator operates at its point of maximum energy generation under different environmental conditions, are required. This paper presents the design and implementation of a single-phase grid-connected photovoltaic system. Simulation models of the primary generator and power converters were obtained. Additionally, two methodologies for maximum power point tracking by using a new method for estimating short-circuit current are proposed. The proposed method weights the control action at different solar irradiance conditions. In order to verify the behavior of the system, simulation and experimental results are presented. Finally, the conclusions are presented.
ISSN:1548-0992
1548-0992
DOI:10.1109/TLA.2015.7387234