Compensation of the harmonic pollution by photovoltaic systems under variable solar radiation

Abstract

The studied system allows to compensate the harmonic pollution by a photovoltaic station under variable solar radiation, it includes a photovoltaic generator (PV), a DC-DC converter that steps up the PV output to the DC link voltage level with maximum power point tracking (MPPT) control and an inverter that links the system to the grid with a variety of non-linear loads. The control strategy used and the obtained results show the benefits of such optimization of the active filter compensation method, in order to improve the quality of the energy (THD ≤2.02%), while limiting the repercussions of the filter on the photovoltaic station and by automatically adapting to the variation of the solar radiation.