Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO4 Battery Charger

Mendoza-Varela, Ivan A.; Alvarez-Diazcomas, Alfredo; Rodriguez-Resendiz, Juvenal; Martinez-Prado, Miguel Angel

doi:10.3390/electronics10212568

Open AccessArticle

Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger

by

Ivan A. Mendoza-Varela

,

Alfredo Alvarez-Diazcomas

,

Juvenal Rodriguez-Resendiz

and

Miguel Angel Martinez-Prado

^*

Faculty of Engineering, Autonomous University of Queretaro, Queretaro 76010, Mexico

^*

Author to whom correspondence should be addressed.

Electronics 2021, 10(21), 2568; https://doi.org/10.3390/electronics10212568

Submission received: 17 September 2021 / Revised: 9 October 2021 / Accepted: 15 October 2021 / Published: 21 October 2021

(This article belongs to the Topic Optimisation, Optimal Control and Nonlinear Dynamics in Electrical Power, Energy Storage and Renewable Energy Systems)

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Abstract

A proper charge in an electric vehicle (EV) battery allows it to have a longer useful life and lower maintenance costs. For this purpose, the voltage and current supplied to the battery must be precisely regulated. In this article, the model of a phase-shifted full-bridge (PSFB) converter is obtained. Moreover, a dual control loop was designed to regulate the state of charge of a lithium ferrofosfate (LiFePO

_{4}

) battery. The autoregressive exogenous (ARX) model is used to model the system. Once the plant model is obtained, it is controlled using a classical controller. A couple of cases are evaluated where the control parameters are modified, and the best approach is selected. From the obtained model, the controller is designed for the proposed cases. The theoretical controller response is compared with the experimental response. The results show a 94% accuracy of the model. In the same way, the result obtained from the controller is accurate in a 96% by comparing it with a simulation. Both the modeling and the control obtained experimentally resemble the results obtained theoretically. The controller manages to respond as expected in all proposed cases.

Keywords: battery charger; classical control; ARX model; DC-DC converter; PSFB

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MDPI and ACS Style

Mendoza-Varela, I.A.; Alvarez-Diazcomas, A.; Rodriguez-Resendiz, J.; Martinez-Prado, M.A. Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger. Electronics 2021, 10, 2568. https://doi.org/10.3390/electronics10212568

AMA Style

Mendoza-Varela IA, Alvarez-Diazcomas A, Rodriguez-Resendiz J, Martinez-Prado MA. Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger. Electronics. 2021; 10(21):2568. https://doi.org/10.3390/electronics10212568

Chicago/Turabian Style

Mendoza-Varela, Ivan A., Alfredo Alvarez-Diazcomas, Juvenal Rodriguez-Resendiz, and Miguel Angel Martinez-Prado. 2021. "Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger" Electronics 10, no. 21: 2568. https://doi.org/10.3390/electronics10212568

APA Style

Mendoza-Varela, I. A., Alvarez-Diazcomas, A., Rodriguez-Resendiz, J., & Martinez-Prado, M. A. (2021). Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger. Electronics, 10(21), 2568. https://doi.org/10.3390/electronics10212568

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Modeling and Control of a Phase-Shifted Full-Bridge Converter for a LiFePO₄ Battery Charger

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