摘要 : Abstract This paper analyses the operating performance of the UNISUN 150.142 M Photovoltaic (PV) module system, installed in a garden area of a research institute “Institut National de Recherche en Sciences Exactes et Naturelles (... 展开 Abstract This paper analyses the operating performance of the UNISUN 150.142 M Photovoltaic (PV) module system, installed in a garden area of a research institute “Institut National de Recherche en Sciences Exactes et Naturelles (IRSEN)” in Congo Brazzaville. We present the results of the performance evaluation of the energy recording through solarimeter in a different orientation from February to April then, we followed the Sunway from February 2020 to January 2021. Tilt orientation of solar panels installation and parameters impacting the PV are quantified. We have considered the temperature taken on the front face of the solar panels. The study was implemented from experimental and theoretical approaches (simulation was done using MATLAB Simulink). From both approaches, we found comparable data from the open circuit voltage Voc and the short circuit current Icc. In addition, we found that the Total Cross Tied (TCT) configuration is not recommended with this type of module causing the decrease of current, especially when the shadow is not on the string. The shading on chains decreases more power than on string. The simulation results show that the increase of power is affected by the impact location of the temperature when those are in the same PV plant receiving the same irradiation. An algorithm of PV cooling is proposed to improve the performance of the PV plant. 收起