Multilevel Inverter Topology for Switching Loss Reduction

In motor drive application, a high switching frequency is required in order to mitigate current harmonics which cause a copper loss. However, the high switching frequency makes the switching loss large. Hence, some switching loss reduction techniques have been studied before. However, they requires...

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Bibliographic Details
Published inIECON 2018 44th Annual Conference of the IEEE Industrial Electronics Society pp. 1345 - 1350
Main Authors Sugimoto, Tomoya, Nozaki, Takahiro, Murakami, Toshiyuki
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.10.2018
Subjects
bidirectional switch
Capacitors
Harmonic analysis
Inverters
multilevel inverter
Switches
Switching loss
Topology
Zero current switching
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Summary:In motor drive application, a high switching frequency is required in order to mitigate current harmonics which cause a copper loss. However, the high switching frequency makes the switching loss large. Hence, some switching loss reduction techniques have been studied before. However, they requires complicated circuits. This paper proposes a multilevel inverter topology for a switching loss reduction. By changing current paths, the proposed inverter realizes the zero current switching. It was experimentally verified that the proposed inverter realizes the zero current switching by a foundation circuit.
ISSN:2577-1647
DOI:10.1109/IECON.2018.8591722