Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge

Cárcamo, Alberto; Fernandez-Hernandez, Alejandro; Gonzalez-Hernando, Fernando; Vázquez, Aitor; Rodríguez, Alberto

doi:10.3390/electronics13101800

Open AccessArticle

Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge

by

Alberto Cárcamo

^1,*

,

Alejandro Fernandez-Hernandez

²

,

Fernando Gonzalez-Hernando

²,

Aitor Vázquez

¹

and

Alberto Rodríguez

¹

Electrical, Electronic, Communications and Systems Engineering Department, Universidad de Oviedo, 33204 Gijón, Spain

²

Ikerlan Technology Research Centre, Basque Research and Technology Alliance (BRTA), P° J.M. Arizmendiarrieta, 2., 20500 Arrasate/Mondragón, Spain

^*

Author to whom correspondence should be addressed.

Electronics 2024, 13(10), 1800; https://doi.org/10.3390/electronics13101800

Submission received: 18 April 2024 / Revised: 2 May 2024 / Accepted: 6 May 2024 / Published: 7 May 2024

(This article belongs to the Special Issue Application of Power Electronics Technology in Energy System)

Download

Browse Figures

Versions Notes

Abstract

The Dual Active Bridge (DAB) converter is known for its advantageous characteristics, including bidirectionality, galvanic isolation, and soft-switching operation. However, achieving Zero Voltage Switching (ZVS) across the complete operation range is not guaranteed, particularly through a wide input–output voltage ratio. This paper explores the integration of the switching frequency as a control variable in the DAB converter to ensure ZVS operation across a wide voltage range, employing Single Phase Shift (SPS) modulation. The study evaluated the RMS and reactive currents under variable switching frequency, presenting the advantages of this approach. Moreover, it includes a design-oriented analysis of the ZVS limits and their relationship with the switching frequency, aiming to ensure ZVS at any operating point. Experimental results validated the theoretical analysis, while presenting the main advantages of variable switching frequency implementation.

Keywords: dual active bridge; frequency modulation; soft-switching; zero-voltage switching

Share and Cite

MDPI and ACS Style

Cárcamo, A.; Fernandez-Hernandez, A.; Gonzalez-Hernando, F.; Vázquez, A.; Rodríguez, A. Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge. Electronics 2024, 13, 1800. https://doi.org/10.3390/electronics13101800

AMA Style

Cárcamo A, Fernandez-Hernandez A, Gonzalez-Hernando F, Vázquez A, Rodríguez A. Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge. Electronics. 2024; 13(10):1800. https://doi.org/10.3390/electronics13101800

Chicago/Turabian Style

Cárcamo, Alberto, Alejandro Fernandez-Hernandez, Fernando Gonzalez-Hernando, Aitor Vázquez, and Alberto Rodríguez. 2024. "Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge" Electronics 13, no. 10: 1800. https://doi.org/10.3390/electronics13101800

APA Style

Cárcamo, A., Fernandez-Hernandez, A., Gonzalez-Hernando, F., Vázquez, A., & Rodríguez, A. (2024). Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge. Electronics, 13(10), 1800. https://doi.org/10.3390/electronics13101800

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Variable Switching Frequency for ZVS over Wide Voltage Range in Dual Active Bridge

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI