Author, as appears in the article.: Gonzalez-Castano, Catalina; Restrepo, Carlos; Giral, Roberto; Garcia-Amoros, Jordi; Vidal-Idiarte, Enric; Calvente, Javier;

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: García Amorós, Jordi / Giral Castillon, Roberto / Vidal Idiarte, Enric

Keywords: Windings Winding-to-winding capacitance Wide operating voltage range Voltage 400 Sic Power inductors Power convertors Power 1 Modified coupled inductor design Low-voltage hard-switching photovoltaic systems High-voltage wide-gain-range applications High-voltage applications Fuel cell hybrid systems Dc-dc converter Capacitor Bidirectional noninverting buck-boost converter 6 kw 0 v

Abstract: This work analyses the effects on the efficiency of the winding-to-winding capacitance of the coupled-inductor of the bidirectional non-inverting buck-boost converter in high-voltage applications. This converter presents many advantages that make it suitable for low-voltage hard-switching photovoltaic and fuel cell hybrid systems. However, experimental results obtained using the previously reported procedure to implement the coupled inductors show low-efficiency in high-voltage applications. A different implementation procedure of the coupled inductors, with lower winding-to-winding capacitance, is proposed. High-efficiency experimental results from a 400 V 1.6 kW prototype have been achieved over a wide operating voltage range, thanks to the use of SiC devices and the modified coupled inductors, confirming in this way its good potential as a building block also in high-voltage wide-gain-range applications.

Thematic Areas: Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: enric.vidal@urv.cat jordi.garcia-amoros@urv.cat roberto.giral@urv.cat

Author identifier: 0000-0002-6016-4096 0000-0002-6548-5059 0000-0001-6582-6741

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-pel.2019.1479

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Iet Power Electronics. 13 (14): 3188-3198

APA: Gonzalez-Castano, Catalina; Restrepo, Carlos; Giral, Roberto; Garcia-Amoros, Jordi; Vidal-Idiarte, Enric; Calvente, Javier; (2020). Coupled inductors design of the bidirectional non-inverting buck-boost converter for high-voltage applications. Iet Power Electronics, 13(14), 3188-3198. DOI: 10.1049/iet-pel.2019.1479

Article's DOI: 10.1049/iet-pel.2019.1479

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications