Next Article in Journal
Simultaneous Robust Coordinated Damping Control of Power System Stabilizers (PSSs), Static Var Compensator (SVC) and Doubly-Fed Induction Generator Power Oscillation Dampers (DFIG PODs) in Multimachine Power Systems
Next Article in Special Issue
Photovoltaic Array Fault Detection by Automatic Reconfiguration
Previous Article in Journal
Evaluating Heat Flux Profiles in Aluminum Reheating Furnace with Regenerative Burner
Previous Article in Special Issue
A Glowworm Swarm Optimization-Based Maximum Power Point Tracking for Photovoltaic/Thermal Systems under Non-Uniform Solar Irradiation and Temperature Distribution
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Energies 2017, 10(4), 564;

Assessment of the Usability and Accuracy of Two-Diode Models for Photovoltaic Modules

Dipartimento di Energia, Ingegneria dell’Informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, Viale delle Scienze Edificio 9, 90128 Palermo, Italy
Author to whom correspondence should be addressed.
Academic Editor: Senthilarasu Sundaram
Received: 4 January 2017 / Revised: 5 April 2017 / Accepted: 18 April 2017 / Published: 20 April 2017
Full-Text   |   PDF [3112 KB, uploaded 24 April 2017]   |  


Many diode-based equivalent circuits for simulating the electrical behaviour of photovoltaic (PV) cells and panels are reported in the scientific literature. Two-diode equivalent circuits, which require more complex procedures to calculate the seven model parameters, are less numerous. The model parameters are generally calculated using the data extracted from the datasheets issued by the PV panel manufactures and adopting simplifying hypotheses and numerical solving techniques. A criterion for rating both the usability and accuracy of two-diode models is proposed in this paper with the aim of supporting researchers and designers, working in the area of PV systems, to select and use a model that may be fit for purpose. The criterion adopts a three-level rating scale that considers the ease of finding the data used by the analytical procedure, the simplicity of the mathematical tools needed to perform calculations and the accuracy achieved in calculating the current and power. The analytical procedures, the simplifying hypotheses and the operative steps to calculate the parameters of the most famous two-diode equivalent circuits are exhaustively described in this paper. The accuracy of the models is tested by comparing the characteristics issued by the PV panel manufacturers with the current-voltage (I-V) curves, at constant solar irradiance and/or cell temperature, calculated with the analysed models with. The results of the study show that the two-diode models recently proposed reach accuracies that are comparable with the values derived from the one-diode models. View Full-Text
Keywords: photovoltaic modules; two-diode equivalent circuit; I-V characteristics; solar energy photovoltaic modules; two-diode equivalent circuit; I-V characteristics; solar energy

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Franzitta, V.; Orioli, A.; Gangi, A.D. Assessment of the Usability and Accuracy of Two-Diode Models for Photovoltaic Modules. Energies 2017, 10, 564.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top