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Abstract
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The paper presents simulation and experimental
results of a novel multilevel push pull inverter based
multi-winding transformer. In the presented topology the most important advantage is that only one
DC voltage source is used for generating the multilevel stepwise waveform in output voltage. Also, the
number of switches in the suggested topology is reduced respect to conventional multilevel inverters. In
the suggested inverter only one switch will be turn
on in each interval and so the conduction losses of
converter will decrease. The selective harmonic elimination (SHE) method is used for generating the gate
pulses. Therefore the converter losses include switching losses and conducting losses, are reduced and so
the efficiency of inverter is increased. Design procedure of transformer turn ratio is presented in this
paper. The suggested topology is proposed to be a
proper choice in low voltage, PV and dynamic voltage
restorer (DVR) applications. The presented simulation and experimental results show the validity and
effectiveness of proposed topology.
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