An improved electric circuit model for photovoltaic modules based on sensitivity analysis

► A new optimization based methodology for estimating the model parameters. ► Sensitivity analysis to identify the relative importance of the model parameters. ► A new seven parameters model for PV devices is proposed. ► Only manufacturer supplied data is needed to use proposed model. Fast and accur...

Full description

Saved in:
Bibliographic Details
Published in:Solar energy 2013-04, Vol.90, p.29-42
Main Authors: Siddiqui, M.U., Arif, A.F.M., Bilton, A.M., Dubowsky, S., Elshafei, M.
Format: Article
Language:English
Subjects:
Applied sciences
Devices
Direct energy conversion and energy accumulation
Electric circuits
Electrical design
Electrical engineering. Electrical power engineering
Electrical power engineering
Energy
Equipments, installations and applications
Equivalence
Equivalent circuit
Exact sciences and technology
Five parameter model
Mathematical analysis
Mathematical models
Miscellaneous
Modules
Natural energy
Optimization
Parameter estimation
Parameter optimization
Photoelectric conversion
Photovoltaic cells
Photovoltaic conversion
Power networks and lines
PV module
Sensitivity analysis
Solar cells. Photoelectrochemical cells
Solar energy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► A new optimization based methodology for estimating the model parameters. ► Sensitivity analysis to identify the relative importance of the model parameters. ► A new seven parameters model for PV devices is proposed. ► Only manufacturer supplied data is needed to use proposed model. Fast and accurate electrical models of PV systems are crucial for their design. Electrical models of PV devices range from very simple scaling equations to complex models requiring large amount of experimental data. The purpose of the present work is two-fold. First, an optimization methodology to estimate the model parameters for the five parameter single-diode equivalent electrical circuit model of PV devices using only manufacturer supplied data is presented and compared to three electrical models from literature for six different PV modules. Second, a sensitivity analysis is carried out to identify the relative importance of the five model parameters. Using the results of sensitivity analysis, the electrical model is improved by including two additional parameters. The suggested model modification results in marked improvement in the prediction accuracy for all six modules considered.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2012.12.021