Grid-connected photovoltaic panel via an inverter
2019
This paper presents the modeling for a grid-connected photovoltaic (PV) and the generated power regulation considering the solar irradiation variations and of the temperature. This connection was realized through an inverter followed by a filter to improve the produced energy quality. A Mamdani fuzzy algorithm based Maximum Power Point Tracking (MPPT) control technique was proposed to optimize the value of the voltage of the photovoltaic generator whatever the climatic conditions. This controller enables to track the maximum power point (MPP), thereby increasing the produced energy by the PV generator to supply it to the distribution network. A control strategy based on the Takagi-Sugeno (T-S) fuzzy method was detailed to calculate the command law in order to control the DC/AC inverter. The resolution of linear matrix inequalities (LMI) was used to calculate the fuzzy controller gains. The H-infinite method was applied to reduce the effect of the perturbation. In order to demonstrate the performance of the control strategy of the proposed system, we were used the Matlab-Simulink environment.
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