Model and research of power electronics solar converter working with power grid

In this paper a single phase grid-connected photovoltaic converter with maximum power point tracking algorithm is presented. This system is characterized by high efficiency and good output quality parameters of electrical energy. The implemented output inverter operates in current tracking controller mode. The output current (current of grid) is almost sinusoidal and the reactive power is equal to zero. Particular attention was paid to the MPPT algorithm. Its task is to ensure that the operating point PV cells to follow the maximum power point, depending on system conditions. Also, some results of simulation and experimental research of elaborated solar system was presented.