Global solar radiation estimation on a horizontal and a tilted plane in Agadir city, Morocco

In this paper, we propose the modeling and simulation of the incident solar radiation on a horizontal and an inclined plane in the city of Agadir. For this concern, we adopt the clear sky model proposed by Kasten, which takes into account some aspects of the atmospheric turbidity into consideration in order to estimate the incidental solar radiation on a horizontal plane. In addition we determine the incident solar radiation on an inclined plane from the global horizontal radiation. To validate the chosenmodel, we compare the simulated values of the solar radiation with the experimental measurements given by our CRX10 Campbell meteorological station installed in the location of this study

Comparison of MPPT techniques: “P&O” and “InCd” for PV systems

The energy utilization efficiency of the photovoltaic can be significantly improved by employing the MPPT (Maximum power point trackers) method. The MPPT is one of the key technologies in photovoltaic generation system;it allows extraction of maximum available power from the photovoltaic (PV) array.The maximum available power is tracked using specialized algorithms such as Perturb and Observe (P&O), and Incremental Conductance (InCd), which are widely applied in the MPPTcontroller due to their simplicity and easy implementation. This paper presents a detailed comparison of their theories and their simulations under the Matlab / Simulink environment. The obtained results show that the use of MPPT control improves in a considerable way the performance of PV systems