Research on a Three-Phase Soft-Switching Inverter Based on a Simple Auxiliary Snubber Circuit

Dawei Dai and Hua Zheng ()
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Dawei Dai: Electrical Engineering & Telecommunications School, The University of New South Wales, Sydney, NSW 2052, Australia
Hua Zheng: School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102208, China

Energies, 2024, vol. 17, issue 15, 1-12

Abstract: This study presents a novel soft-switching inverter distinguished by a simplified topology and an innovative modulation approach. The design aims to optimize the energy conversion processes commonly found in auxiliary snubber circuits. By minimizing the number of auxiliary switches, the control method is streamlined, thereby enhancing system reliability and cost-efficiency. The principles of operation and conditions for soft-switching are thoroughly analyzed using equivalent circuit models. A 3 kW/16 kHz inverter prototype was constructed, and the experimental results confirm the effectiveness and benefits of the proposed inverter.

Keywords: auxiliary snubber circuit (ASC); soft-switching; zero-voltage switching (ZVS); zero current switching (ZCS) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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