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Making the Most of Module Matrix Measurements - IEC 61853-1
A. Driesse, J.S. Stein
Photovoltaic Modules and BoS Components
Subtopic: PV Module Design, Manufacture, Performance and Reliability
Event: 36th European Photovoltaic Solar Energy Conference and Exhibition
Session: 4AV.2.14
ISBN: 3-936338-60-4
0,00 EUR
Document(s): poster


It is common knowledge that PV module operating efficiency in the field varies with temperature and irradiance, among other external influences. It is the role of simulation software to predict how the operating conditions modulate module efficiency, and consequently output power, and energy yields over time in a given location. That software uses a general model of PV module efficiency—often a variation of the single-diode model with ancillary equations—and various parameters to make that model represent a specific product. The accuracy of such simulations depends both on the capabilities of the model and on the accuracy of the parameters used. (We are disregarding the role of unknown and/or unpredictable factors here, and focusing on the PV module behaviour.) Simpler models use fewer parameters and have fewer degrees of freedom, but may offer the advantage of requiring less information to determine the appropriate values for those parameters; whereas more complex models sometimes need more data than is available to properly tune all their parameters.