pvanalytics.features.snow.get_irradiance_sapm#

pvanalytics.features.snow.get_irradiance_sapm(temp_cell, i_mp, imp0, c0, c1, alpha_imp, irrad_ref=1000, temp_ref=25)#

Model effective irradiance from current at maximum power and cell temperature.

Solves Eqn. 2 from 1.

Parameters
  • temp_cell (array-like) – Temperature of cells inside module. [degrees C]

  • i_mp (array-like) – Maximum power current at the resolution of a single module. [A]

  • imp0 (float) – Short-circuit current at reference condition. [A]

  • c0 (float) – Empirically determined coefficients relating i_mp to effective irradiance.

  • c1 (float) – Empirically determined coefficients relating i_mp to effective irradiance.

  • alpha_imp (float) – Normalized temperature coefficient for short-circuit current. [1/°C]

  • irrad_ref (float, default 1000) – Reference irradiance. [W/m2]

  • temp_ref (float, default 25) – Reference cell temperature. [degrees C]

Returns

effective_irradiance – Effective irradiance. [W/m2]

Return type

array-like

References

1

D. L. King, E.E. Boyson, and J.A. Kratochvil, “Photovoltaic Array Performance Model”, SAND2004-3535, Sandia National Laboratories, Albuquerque, NM, 2004.

Examples using pvanalytics.features.snow.get_irradiance_sapm#

Quantifying the effects of snow cover

Quantifying the effects of snow cover