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Title: High Performance ZVT with Bus Clamping Modulation Technique for Single Phase Full Bridge Inverters

This paper proposes a topology based on bus clamping modulation and zero-voltage-transition (ZVT) technique to realize zero-voltage-switching (ZVS) for all the main switches of the full bridge inverters, and inherent ZVS and/or ZCS for the auxiliary switches. The advantages of the strategy include significant reduction in the turn-on loss of the ZVT auxiliary switches which typically account for a major part of the total loss in other ZVT circuits, and reduction in the voltage ratings of auxiliary switches. The modulation scheme and the commutation stages are analyzed in detail. Finally, a 1kW, 500 kHz switching frequency inverter of the proposed topology using SiC MOSFETs has been built to validate the theoretical analysis. The ZVT with bus clamping modulation technique of fixed timing and adaptive timing schemes are implemented in DSP TMS320F28335 resulting in full ZVS for the main switches in the full bridge inverter. The proposed scheme can save up to 33 % of the switching loss compared with no ZVT case.
Authors:
;
Publication Date:
OSTI Identifier:
1238685
Report Number(s):
DOE-NCSU-0006521
DOE Contract Number:
EE0006521
Resource Type:
Conference
Resource Relation:
Conference: APEC 2016, March 20 - 24, 2016, Long Beach, CA
Research Org:
North Carolina State University
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
Contributing Orgs:
PowerAmerica Institute
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 25 ENERGY STORAGE; 29 ENERGY PLANNING, POLICY, AND ECONOMY; 42 ENGINEERING ZVT, bus clamping, full bridge, switching loss saving