OPTIMIZING THE ENERGY PERFORMANCE OF A HYBRID PVT AIR COLLECTOR WITH PARABOLIC TROUGH CONCENTRATOR AND HELIOSTAT

Energetique

The work proposed in this paper consists of a combination of three solar energy conversion technologies (Air PVT - Cylindro-Parabolic Concentrator - Heliostat) for the continuous production of electrical and thermal energy. To enhance system performance, the Photovoltaic Thermal Air Collector is placed in the focal zone of a Concentric Cylindro-Parabolic Thermal Collector and the Heliostat sun-tracking system (PVT-CCPH). The maximum power output of the PVT hybrid air collector is controlled by a Maximum Power Point Tracking (MPPT) control system. This system (PVT-CCPH) is designed to supply a resistive load. In order to maintain the characteristics of the electrical load with those of the PVT at the MPP maximum power point, a DC-DC converter has been used. The system's autonomy will be ensured by a storage system. This combination offers an interesting alternative to ordinary photovoltaic modules and conventional thermal collectors installed separately. The aim of this study is to improve the energy performance of the PVT-CCPH hybrid system adapted to the climate in the city of Mahajanga. The work therefore focused on modeling and simulating this hybrid system using Matlab and simulink software. In this study, mathematical models were developed for each component of the system in order to obtain the expected results.

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