A Review on Multilevel Inverter Topology

PV connected to the single phase grid is discussed in this review. Also the types of multilevel inverter is discussed. Normally the line commutated inverter has square shaped waveform of line current. So it has large amount of harmonic and produces excess of heat which causes damage to the winding of transformer. Multilevel inverter gives the output current waveform which is nearly sinusoidal in nature. This line current has fewer harmonics as compared to line commutated inverter. Basically multilevel inverter produces the output by synthesis of DC voltages i.e. by increasing of DC voltages, the levels of the output increases. Multilevel inverter also used for electric drives applications for same reason i.e. harmonic reduction. The simulation can be done by MATLAB/SIMULINK. In simulation model we can use DC source instead of PV module.