Title:	Investigation of a bidirectional DC/DC converter with zero-voltage switching operation for battery interfaces
Authors:	Bhajana, V.V.S. Kumar Drábek, Pavel Jára, Martin Popuri, Madhuchandra Iqbal, Atif Babu, Chitti B.
Citation:	BHAJANA, VK. DRÁBEK, P. JÁRA, M. POPURI, M. IQBAL, A. BABU, CHB. Investigation of a bidirectional DC/DC converter with zero-voltage switching operation for battery interfaces. IET Power Electronics, 2021, roč. 14, č. 3, s. 614-625. ISSN: 1755-4535
Issue Date:	2021
Publisher:	John Wiley and Sons
Document type:	článek article
URI:	2-s2.0-85101515557 http://hdl.handle.net/11025/54921
ISSN:	1755-4535
Keywords in different language:	DC-DC converters;efficiency;electric batteries;HVDC power transmission;resonant circuits;switching frequency
Abstract in different language:	This paper proposes a bidirectional DC–DC converter with soft-switching capabilities. The main characteristic of this converter is that it can be operated in both boost and buck modes. The major advantages of this converter are high efficiency and reduced switching loss in high-power and high-voltage applications. The soft-switching capability is obtained by additional dual auxiliary resonant circuits connected to the conventional non-isolated bidirectional DC–DC converter. Except for the auxiliary switches, all main switches turn on with zero-voltage switching in this proposed bidirectional DC–DC converter. The auxiliary switches turn off with zero current transition. The principle of operation, theoretical analysis and experimental results of a 175 V/385 V bidirectionalDC–DC converter at 2 kW output power with switching frequency of 50 kHz are provided. The experimental results verified the zero-voltage switching operation for boost and buck modes with efficiencies 96.5% and 96%, respectively, at full load.
Rights:	© The Author(s)
Appears in Collections:	Články / Articles (RICE) Články / Articles (KEV) OBD

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