Nonlinear control for a DC–DC converter with dual active bridges in a DC microgrid

This work presents a new control strategy for a DC–DC converter with dual active bridges used to interconnect two feeders in a DC microgrid. The proposed control strategy allows regulating the output voltage of the converter while maintaining the mean primary and secondary current value of the high-...

Full description

Autores:
Esteban, Francisco D.
Serra, Federico M.
De Angelo, Cristian H.
Montoya, Oscar D.
Tipo de recurso:
Fecha de publicación:
2022
Institución:
Universidad Tecnológica de Bolívar
Repositorio:
Repositorio Institucional UTB
Idioma:
eng
OAI Identifier:
oai:repositorio.utb.edu.co:20.500.12585/11836
Acceso en línea:
https://hdl.handle.net/20.500.12585/11836
https://doi.org/10.1016/j.ijepes.2022.108731
Palabra clave:
Microgrid
Dual active bridge
High-frequency transformer
Generalized space state average modeling
Nonlinear control
Input–output feedback linearization
LEMB
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description
Summary:This work presents a new control strategy for a DC–DC converter with dual active bridges used to interconnect two feeders in a DC microgrid. The proposed control strategy allows regulating the output voltage of the converter while maintaining the mean primary and secondary current value of the high-frequency transformer at zero, in order to avoid magnetic saturation. The controller is designed using the nonlinear control strategy based on feedback linearization, which is based on the converter generalized space-state averaged model. The performance of the proposed controller is validated via simulation and experimental results.