Prediction of the Performance of Photovoltaic Modules from the Behavior of Physical Parameters According to Irradiance and Temperature

Abstract

In this paper, a study on photovoltaic module physical parameters behavior depending on irradiance G and module temperature TM is presented. From this investigation, new equations translating physical parameters behavior depending on TM and G are developed. The new proposed laws, which combine the effects of G and TM in a correlated manner, have the advantage of incorporating G effect on the temperature coefficients by including specific terms. The developed laws form a basis for predicting PV module performance and can be incorporated into maximum power point tracking (MPPT) programs to extract peak power output under different operating conditions. This study is conducted by examining the electrical performances at the maximum power (Im, Vm), the open circuit (0, VOC), and the short circuit (ISC, 0) points measured using an elaborate experimental platform. The photovoltaic module used is a monocrystalline type exposed to four G values of 700, 800, 880 and 1000 W.m-2 for temperatures TM between 16°C and 48°C.