International Research Journal of Education and Technology

In recent trends, photo-voltaic (PV) is mostly build upon competitive technological development of power quality (PQ) issues. In this article, a hybrid control strategy is implemented with multi-level inverter (MLI) to improve PQ features. As a result, the combination of these controllers with suitable level of MLI could improve the PQ features in a significant way Power quality is highlighted as an important parameter in modern power systems. Moreover, grid-connected photovoltaic power plants are increasing significantly in size and capacity. Elsewhere, due to the progressive integration of nonlinear loads in the grid, the principal role of a Solar Energy Conversion System (SECS) is not only to capture the maximum power from solar but, also to ensure some ancillary services and improve the quality of power. This paper presents a novel strategy dedicated to improve the management of active power generation, reactive power compensation and power quality of SECS, while guaranteeing the possibility of exploiting the full capacity of the Power Conditioning System (PCS) and the Photovoltaic System (PVS) using filters. The proposed control algorithm is applied to a large scale PVS connected to the grid.

Keywords. Multi-level inverter (MLI), Photo-voltaic (PV) energy, Power quality (PQ), Hybrid control, Electrical microgrids (MGs).