Title: Modelling and analysis of six-leg interleaved boost converter for fuel cell HEV applications

Authors: A.S. Veerendra; M.R. Mohamed; Aymen Flah

Addresses: Department of Electrical and Electronics Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India ' College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang, Malaysia ' National Engineering School of Gabès, University of Gabès, Gabès, 6072, Tunisia; MEU Research Unit, Middle East University, Amman, Jordan; Private Higher School of Applied Sciences; Technology of Gabès (ESSAT), University of Gabès, Gabès, Tunisia; Applied Science Research Center, Applied Science Private University, Amman, 11931, Jordan

Abstract: This paper proposed a six-leg interleaved boost converter (SLIBC) in an integrated multi-level converter (IMLC) of switched reluctance motor (SRM) drives for the fuel cell hybrid electric vehicle applications (FCHEV). The fuel cell with the combination of supercapacitors acts as a source in order to observe the speed-torque characteristics of SRM drive. The IMLC is operated with switching positions of the front-end circuit to obtain the different multi-level voltages. The current controlling scheme is employed for speed control of the SRM drive. In the fuel cell driving mode, a supercapacitor is used to provide the phase voltage for quick demagnetisation and excitation. Furthermore, IMLC acts as a 4-level converter for producing multi-level output voltages. The proposed topology has output voltage and current of 875 V and 8.75 A respectively and the speed-torque characteristics are observed as 4,200 rad/s and 32 N-m compared to the operation with conventional FLIBC and Modified FLIBC topologies. The effectiveness of the system is validated through MATLAB/Simulink software.

Keywords: interleaved boost converter; supercapacitor; fuel cell; hybrid electric vehicle; integrated multi-level converter.

DOI: 10.1504/IJPT.2025.149486

International Journal of Powertrains, 2025 Vol.14 No.3, pp.201 - 221

Received: 23 Nov 2024
Accepted: 11 Feb 2025
Published online: 04 Nov 2025 *

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