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Adding the MLFM to PVPMC/PVLIB
S. Ransome, J. Sutterlueti
Energy Rating, Energy Performance, Modelling
Photovoltaic Modules and BoS Components
Subtopic: PV Module Performance – Modelling, Testing, Standards
Event: 8th World Conference on Photovoltaic Energy Conversion
Session: 3BV.3.14
650 - 656
ISBN: 3-936338-86-8
Paper DOI: 10.4229/WCPEC-82022-3BV.3.14
0,00 EUR
Document(s): paper


PVPMC/PVLIB is a global collaborative project headed by Sandia to develop a verified open-source PV modelling library in python. The MLFM (Mechanistic Loss Factors Model) combines the Loss Factors Model LFM (orthogonal, normalised loss calculations from MPPT measurements, iv curves or IEC 61853-like matrices) with the Mechanistic Performance Model MPM (robust, orthogonal, normalised fitting coefficients to LFM losses). The MLFM is being added to PVLIB, this paper describes the new functionality as shown by these models and how to interpret the graphs and datafits. This paper also describes some of the procedures used to add code to PVLIB and aims to encourage others to submit their own PV modelling code following PVLIB’s styles, nomenclature, naming conventions, formatting, guidelines, designs, tests etc.