A high-efficiency hybrid energy system composed of fuel cell and thermoelectric generator for light electric vehicles

Authors : Mehmet Zahid Erel

Pages : 393-407

Doi:10.58559/ijes.1698555

View : 62 | Download : 28

Publication Date : 2025-06-26

Article Type : Research Paper

Abstract :This study proposes a more effective utilization of fuel cell (FC) technology by integrating a thermoelectric generator (TEG), which harnesses waste heat to generate electrical energy. While the FC still requires hydrogen, the integration of a TEG enables supplementary power generation from waste heat without any additional fuel input, resulting in a more efficient and compact hybrid system. The Perturb and Observe (P&O) MPPT-based SEPIC converter is highlighted for use in light fuel cell electric vehicle (FCEV) applications due to its inherent buck–boost capability, making it particularly suitable for practical implementations. To achieve maximum efficiency and ensure stable operation of the TEG, the FC is operated at its nominal power of 93.75 W in this system. The integrated TEG system, combined with a high-efficiency boost converter, contributes approximately 5-W to the proposed hybrid energy system, which achieves an overall efficiency of 96.1%. The proposed hybrid energy system holds great potential for providing sustainable energy solutions in transportation applications.
Keywords : Fuel cell, Thermoelectric generator, Hybrid energy system, Electric vehicle

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