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Add method to fit PVsyst SDM to IEC 61853 data #2185
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The mentioned article is now available early and open access: https://doi.org/10.1109/JPHOTOV.2025.3554338 |
Would that have been substantially different or more difficult to do it for CEC and De Soto? |
Sure, I expect similar methods could be developed for CEC and De Soto. It would probably be easier for those two than it was for the PVsyst SDM. |
I’m pretty excited to start using this in pvfree to generate PVsyst parameter from SAM module libraries |
@mikofski I'm curious why the existing |
I was intending to use the existing functions, but I haven’t read the paper on these new regressions yet, so perhaps naively thought it might be a better option. |
We have developed a method for determining parameter values for the PVsyst single diode model using IEC 61853-1 matrix measurements. The method produces useful fits on a range of IEC 61853 datasets without resorting to numerical optimization. A journal article describing the method is nearing readiness for submission. Once that manuscript is submitted, we plan to submit a PR to add the method to pvlib.
We already have
pvlib.ivtools.sdm.fit_pvsyst_sandia
, which calculates SDM parameters based on I-V curves. Perhaps new functions along these lines should encode the data source in their name, so this function could be calledfit_pvsyst_iec61853_sandia
or similar.Note that such a method does not constitute a "PAN file generator" as it addresses only the electrical portion of a PAN file.
See also:
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