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RESEARCH PRODUCT
A Criterion for Rating the Usability and Accuracy of the One-Diode Models for Photovoltaic Modules
Aldo OrioliAlessandra Di Gangisubject
I-V characteristicsEngineeringI-V characteristicControl and Optimization020209 energysolar energyEnergy Engineering and Power Technology02 engineering and technologySolar irradiancelcsh:TechnologyRating scale0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)SimulationPhotovoltaic modules; one-diode equivalent circuit; five-parameter model; I-V characteristics; solar energySettore ING-IND/11 - Fisica Tecnica Ambientalephotovoltaic modulesRenewable Energy Sustainability and the Environmentbusiness.industrylcsh:Tphotovoltaic modules; one-diode equivalent circuit; five-parameter model; <i>I-V</i> characteristics; solar energyPhotovoltaic systemUsability021001 nanoscience & nanotechnologySolar energyone-diode equivalent circuitPower (physics)Photovoltaic moduleEquivalent circuitfive-parameter model0210 nano-technologybusinessConstant (mathematics)Energy (miscellaneous)description
In selecting a mathematical model for simulating physical behaviours, it is important to reach an acceptable compromise between analytical complexity and achievable precision. With the aim of helping researchers and designers working in the area of photovoltaic systems to make a choice among the numerous diode-based models, a criterion for rating both the usability and accuracy of one-diode models is proposed in this paper. A three-level rating scale, which 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, is used. The proposed criterion is tested on some one-diode equivalent circuits whose analytical procedures, hypotheses and equations are minutely reviewed along with the operative steps to calculate the model parameters. To assess the achievable accuracy, the current-voltage (I-V) curves at constant solar irradiance and/or cell temperature obtained from the analysed models are compared to the characteristics issued by photovoltaic (PV) panel manufacturers and the differences of current and power are calculated. The results of the study highlight that, even if the five parameter equivalent circuits are suitable tools, different usability atings and accuracies can be observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-01 | Energies; Volume 9; Issue 6; Pages: 427 |