Volume 82, Issue 1, December 2025, Pages 8–23
BATASSOU GUILZIA Jeannot1, Fouda Bella Regine2, KOKO KOKO Joseph3, and NDJAKOMO ESSIANE Salomé4
1 Laboratory of Computer and Automatic Engineering, UFD of Engineering Sciences. ENSET, University of Douala, Douala, Cameroon
2 Higher Normal School of Technical Education ENSET of Ebolowa. University of Ebolowa, Cameroon
3 Laboratory of Computer and Automatic Engineering, UFD of Engineering Sciences. ENSET, University of Douala, Douala, Cameroon
4 Higher Normal School of Technical Education ENSET of EBOLOWA, University of Yaoundé 1, Yaoundé, Cameroon
Original language: English
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In recent years, the reliability and continuity of service of powertrains have become major challenges for electric vehicles to enter the mass market. Indeed, defects in powertrains lead to malfunctions in vehicles and reduce their performance compared to conventional vehicles. In this article, we focus on the DC/DC converter associated with the fuel cell in the powertrain. The latter must address the major issues facing fuel cell electric vehicle applications, namely: low mass and small volume, high energy efficiency, reduction of input current ripple, and reliability. This work then consisted of sizing and testing the fault-tolerant DC/DC converter structure selected for P to C vehicles. Algorithms for managing the degraded modes of this converter were developed and implemented experimentally. In this regard, the interaction between P to C and the DC/DC converter was studied. A theoretical simulation approach was used to carry out this work. This approach made it possible, under the most demanding conditions, to achieve very high efficiencies in steady state for both converters: 97.2% for the VS = 400V version and 95.5% for the VS = 200V version, powered respectively by input voltages of 400V and 200V. For input voltages in the lowest range, the efficiency is naturally lower. However, we are confident that this criterion (ƞ ≥ 96%) will be met over the nominal voltage range (between 300 and 600V). This demonstrator has validated the real benefits of a two-stage structure for applications with high input voltage variation, with each stage achieving efficiency in excess of 98%.
Author Keywords: electric vehicle, DC/DC converter, analytical method, electrical system control, fuel cell.
BATASSOU GUILZIA Jeannot1, Fouda Bella Regine2, KOKO KOKO Joseph3, and NDJAKOMO ESSIANE Salomé4
1 Laboratory of Computer and Automatic Engineering, UFD of Engineering Sciences. ENSET, University of Douala, Douala, Cameroon
2 Higher Normal School of Technical Education ENSET of Ebolowa. University of Ebolowa, Cameroon
3 Laboratory of Computer and Automatic Engineering, UFD of Engineering Sciences. ENSET, University of Douala, Douala, Cameroon
4 Higher Normal School of Technical Education ENSET of EBOLOWA, University of Yaoundé 1, Yaoundé, Cameroon
Original language: English
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
In recent years, the reliability and continuity of service of powertrains have become major challenges for electric vehicles to enter the mass market. Indeed, defects in powertrains lead to malfunctions in vehicles and reduce their performance compared to conventional vehicles. In this article, we focus on the DC/DC converter associated with the fuel cell in the powertrain. The latter must address the major issues facing fuel cell electric vehicle applications, namely: low mass and small volume, high energy efficiency, reduction of input current ripple, and reliability. This work then consisted of sizing and testing the fault-tolerant DC/DC converter structure selected for P to C vehicles. Algorithms for managing the degraded modes of this converter were developed and implemented experimentally. In this regard, the interaction between P to C and the DC/DC converter was studied. A theoretical simulation approach was used to carry out this work. This approach made it possible, under the most demanding conditions, to achieve very high efficiencies in steady state for both converters: 97.2% for the VS = 400V version and 95.5% for the VS = 200V version, powered respectively by input voltages of 400V and 200V. For input voltages in the lowest range, the efficiency is naturally lower. However, we are confident that this criterion (ƞ ≥ 96%) will be met over the nominal voltage range (between 300 and 600V). This demonstrator has validated the real benefits of a two-stage structure for applications with high input voltage variation, with each stage achieving efficiency in excess of 98%.
Author Keywords: electric vehicle, DC/DC converter, analytical method, electrical system control, fuel cell.
How to Cite this Article
BATASSOU GUILZIA Jeannot, Fouda Bella Regine, KOKO KOKO Joseph, and NDJAKOMO ESSIANE Salomé, “Contribution to the comparative study of DC-DC converter topologies for the regulation and control of electrical systems: The case of an electric vehicle,” International Journal of Innovation and Scientific Research, vol. 82, no. 1, pp. 8–23, December 2025.
