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

Conference · Sun Mar 20 04:00:00 EDT 2016

OSTI ID:1238685

Xia, Yinglai ^[1]; Ayyanar, Raja

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1. PowerAmerica Institute

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.

• Research Organization: North Carolina State University
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
• Contributing Organization: PowerAmerica Institute
• DOE Contract Number: EE0006521
• OSTI ID: 1238685
• Report Number(s): DOE-NCSU-0006521
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
29 ENERGY PLANNING, POLICY, AND ECONOMY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
42 ENGINEERING
99 GENERAL AND MISCELLANEOUS
ZVT
bus clamping
full bridge
switching loss saving