Center-Tapped π-Type Single-Phase Cell

A π-type derived four-level single-phase inverter is analyzed in this paper. It is demonstrated that the topology can be obtained both by inserting a neutral connection point in a four-level π-type cell, or removing the switches connected to ground in a five-level T-type cell. Five different pattern...

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Bibliographic Details
Published in2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) pp. 1 - 6
Main Authors Simonetti, Domingos S. L., Yuan, Xibo
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2019
Subjects
Harmonic analysis
inverter component
Inverters
multilevel
Pulse width modulation
single-phase
Switches
Switching frequency
Topology
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Summary:A π-type derived four-level single-phase inverter is analyzed in this paper. It is demonstrated that the topology can be obtained both by inserting a neutral connection point in a four-level π-type cell, or removing the switches connected to ground in a five-level T-type cell. Five different pattern approaches to drive converter switches are presented, showing its influence on the high-frequency waveform of the output voltage. Simulation results for scenarios of feeding a single-phase load and a solar array connection to grid are given, making possible to demonstrate its functionality.
ISSN:2643-9778
DOI:10.1109/COBEP/SPEC44138.2019.9065693