6533b826fe1ef96bd128505b

RESEARCH PRODUCT

Real time estimation of photovoltaic modules characteristics and its application to maximum power point operation

Jose M. BlanesJuan B. EjeaAusias GarrigosJosé A. Carrasco

subject

Maximum power principleRenewable Energy Sustainability and the EnvironmentPhotovoltaic systemEstimatorMaximum power point trackinglaw.inventionGenerator (circuit theory)MicrocontrollerControl theorylawSolar cellCurve fittingComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMSMathematics

description

In this paper, an approximate curve fitting method for photovoltaic modules is presented. The operation is based on solving a simple solar cell electrical model by a microcontroller in real time. Only four voltage and current coordinates are needed to obtain the solar module parameters and set its operation at maximum power in any conditions of illumination and temperature. Despite its simplicity, this method is suitable for low cost real time applications, as control loop reference generator in photovoltaic maximum power point circuits. The theory that supports the estimator together with simulations and experimental results are presented.

yearjournalcountryeditionlanguage
2007-05-01Renewable Energy
https://doi.org/10.1016/j.renene.2006.08.004