Comprehensive analysis of a three‐phase DC–DC resonant converter with an open delta‐wye transformer using variable frequency

Autor:	Kristian Pessoa dos Santos, Paulo Peixoto Praça, Hermínio Miguel Oliveira Filho, Demercil de Souza Oliveira Jr., Luís Henrique Silva Colado Barreto, Gustavo Alves de Lima Henn
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Power electronics supply and supervisory circuits Voltage control Control of electric power systems Inductors and transformers Relays and switches DC-DC power convertors Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 57, Iss 2, Pp 77-80 (2021)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.12043
Popis:	Abstract A three‐phase soft‐switched DC–DC resonant converter with variable frequency to perform the output voltage control is proposed. The open delta‐wye connection provides a double output voltage reducing the primary current stress, turns ratio, weight and volume of high‐frequency transformer. To achieve high efficiency, an LLC resonant tank is designed so that all switches can perform zero‐voltage switching for the entire power range. In order to verify the operating principle of the converter, a design example is described, with the following converter specifications: input voltage 96 V, output voltage 380 V and a switching frequency up to 120 kHz. The feasibility and practicality of the proposed converter are confirmed by experimental results with a 1.5 kW prototype.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/401b42bc7bc04fd7ba928818de64da9f Zobrazit plný text záznamu Plný text View record in DOAJ