Analysis and Emulation of a Photovoltaic Solar System Using a MATLAB/Simulink Model and the DS1104 Unit

The purpose of this paper is to show the emulation and analysis of a photovoltaic solar system by modelling its behavior in Matlab/Simulink. The emulation process is done by using the DS1104 dspace real-time platform. The PV system is made up of a PV solar array, a DC-DC power converter working on a buck-boost topology, and a perturb and observe MPPT algorithm. The PV array model is based on the characteristics of a real PV panel, Yingli 265c-30b, and it is capable of delivering around 7 kW under optimal ambient conditions and operating at its maximum power point. The power curves of the system are shown to illustrate the behavior of the MPPT algorithm as it works along with the buck-boost converter to force the PV array voltage and current to be at its highest value.