In recent years, power demand of industrial applications has increased
significantly reaching some megawatts. The use of multilevel converters for
applications of medium and high powers is proposed as a solution to drawback
semiconductor technology. A multilevel converter not only achieves high power
ratings, but also enables the use of renewable energy sources. Renewable
energy sources such as photovoltaic can be easily interfaced to a multilevel
converter system for a high power application. This paper presents the
simulation study in Matlab/Simulink of a grid connected photovoltaic three
phase Neutral Point Clamped (NPC) inverter with DC/DC boost converter for
constant and variable solar radiation.