Estimation of Maximum Power from roof-integrated BIPV modules using Lambert W function aided three-diode model

Abstract

Building integrated photovoltaic (BIPV) modules refer to the modern solar photovoltaic (PV) modules that generate clean energy from buildings. A perfect BIPV module mathematical diode model represents the I-V and P-V characteristics of a BIPV module. The main objective of this research article is to estimate maximum power from roof-integrated BIPV modules through the proposed Lambert W function aided three diode model (TDM) approach. The nine unknown parameters (Iphc, Irs1
, Irs2, Irs3, i1, i2, i3, Rp & Rs) for roof-integrated BIPV modules are extracted using this approach. Comparison of the proposed approach with datasheet simulated values for roof-integrated mono-crystalline BSO 300 Wp and multi-crystalline BSU 280 Wp BIPV modules in MATLAB/Simulink are performed. The proposed approach is further validated at different values of incident solar irradiations (Irr) and temperatures (T). Finally, it can be concluded that the Lambert W function aided TDM result nearly follows the I-V & P-V curves for both BSO 300Wp and BSU 280Wp BIPV modules for different values of incident solar irradiations (Irr) and temperatures (T) with an average error of 1.2%. This infers that the proposed method is a very robust and effective model for a BIPV module