Abstract:
The main objective of this paper is to propose a
new single phase asymmetrical type multilevel inverter
with minimum number of switches. The proposed
multilevel inverter consists of level creator unit which
generate only positive levels of outputs. The H-bridge
inverter is added to change the polarity of the output
voltage. The comparison between the proposed topology
with existing inverter topologies is presented. The
proposed inverter consist of six voltage sources, 11 main
switches and 4 H-bridge inverter switches. Different
algorithms are used to calculate the switching angles and
the results are compared with the reference. The
proposed inverter produces output voltage waveform with
minimum THD as compared with the reference. The
computer based simulation model is developed using
MATLAB/SIMULINK software to verify the function of
the proposed inverter.
