A TRANSFORMERLESS HIGH-GAIN DC-DC CONVERTER FOR ELECTRIC VEHICLE APPLICATIONS
DOI:
https://doi.org/10.59277/RRST-EE.2026.3.15Keywords:
Battery energy storage system (BESS), Effective voltage boosting, Electric vehicle (EV), High-gain converter, Renewable energy sourcesAbstract
Reliable DC power is essential for the continuous operation of battery energy storage systems (BESS) in EV systems. Since these systems require a specific voltage level that many sources cannot directly provide, an efficient voltage-boosting stage is necessary. This paper presents a higher-voltage-gain structure for a non-isolated DC/DC converter with a switched-inductor-based double-switch configuration to step up a low input voltage to a stable high output suitable for EV applications. The proposed converter is analyzed using MATLAB/Simulink to evaluate voltage gain, efficiency, and device stresses. A 100 W hardware prototype producing 200 V output is developed for validation. Both simulation and experimental results confirm improved voltage regulation and reduced output ripple under varying duty conditions. Overall, the topology provides a practical and efficient solution for EV battery energy storage systems.
References
(1) B. Anton, A. Florescu, S.G. Rosu, “Standalone analog active cell-balancing circuit for automotive battery management systems.” Revue Roumaine Science Techniques – Électrotechnique et Énergétique, 63, 3, pp. 306–313 (2018).
(2) S. Latreche, B. Babes, A. Bouafassa, “Design and real-time implementation of synergetic regulator for a DC-DC boost converter”, Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 69, 3, pp. 305–310 (2024).
(3) R.A. Khan, H.-D. Liu, C.-H. Lin, S.-D. Lu, S.-J. Yang, A. Sarwar, “A novel high-voltage-gain step-up DC–DC converter with maximum power point tracker for solar photovoltaic systems.” Processes, 11, pp. 1–17 (2023).
(4) R. Beiranvand, S.H. Sangani, “A family of interleaved high step-up DC–DC converters integrating voltage multiplier and active clamp circuits.” IEEE Access, 11, pp. 1–15 (2023).
(5) H.M. Jazi, R.R. Khorasani, E. Adib, P. Zanchetta, G. Velasco-Quesada, H. Martínez-García, “A high-efficient single-switch soft-switching high step-up DC–DC converter with continuous input current for renewable energy integration.” IEEE Transactions on Power Electronics, 39, pp. 9814–9825 (2024).
(6) K. Velmajala, S.R. Sandepudi, “High step-up DC–DC converter with reconfiguration capability.” IEEE Latin America Transactions, 22, pp. 971–982 (2024).
(7) S.P. Sharma, S. Hasanpour, R. Kumar, “Ultra-high voltage gain achieved with quadratic DC/DC converter design”, Scientific Reports, 14, 23384 (2024).
(8) H. Sridharan, S. Ramalingam, J. Arumugam, “Wide boost ratio in quasi-impedance network converter using switch voltage spike reduction technique”, Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 68, 3, pp. 259–265 (2023).
(9) R. Rostami, S.H. Hosseini, M.B.B. Sharifian, “High-gain non-isolated step-up DC–DC converter suitable for renewable energy applications.” Scientific Reports, 15, pp. 1–14 (2025).
(10) S. Mohsen Salehi, A.Y. Varjani, “A step-up DC-DC converter with high voltage gain and soft-switched capability and minimum phase characteristic”, Scientific Reports, 16, 9763 (2026).
(11) M.B. Patel, J. Nakka, P.K. Bonthagorla, “Design and analysis of a very high-gain expandable DC–DC step-up converter.” IEEE Access, 14, pp. 1–15 (2026).
(12) S. Seba, M. Birane, K. Benmouiza, “A comparative analysis of boost converter topologies for photovoltaic systems using maximum power point (P&O) and beta methods under partial shading.” Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 68, 4, pp. 375–380 (2023).
(13) M.-A. Ilie, D. Floricău, “Grid-connected photovoltaic systems with multilevel converters – modeling and analysis.” Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 68, 1, pp. 77–83 (2023).
(14) D. Ziane, A. Azib, A. Oubelaid, N. Taib, T. Rekioua, D. Rekioua, “Proposed power factor correction circuit based on the single-ended primary-inductor converter controlled by sliding mode control strategy used in an electric vehicle charging station.” Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 67, 3, pp. 241–245 (2022).
(15) P. Pilati, R. Mandrioli, V. Cirimele, M. Ricco, D. Guillbert, “Power electronic converters for green hydrogen production from photovoltaic: A review”, International Journal of Hydrogen Energy, 270, 157013 (2026).
(16) M.S. Bhaskar, N. Gupta, S. Selvam, D.J. Almakhles, P. Sanjeevikumar, J.S.M. Ali, S. Umashankar, “A new hybrid Zeta-boost converter with active quad switched inductor for high voltage gain.” IEEE Access, 9, pp. 20022–20034 (2021).
(17) A.M.S.S. Andrade, T.M.K. Faistel, R.A. Guisso, A. Toebe, “Hybrid high voltage gain transformerless DC–DC converter.” IEEE Transactions on Industrial Electronics, 69, 3, pp. 2470–2479 (2022).
(18) A.M.S.S. Andrade, T.M.K. Faistel, R.A. Guisso, “Single-switch high-efficiency hybrid boost–Ćuk DC/DC converter with high-voltage gain and low-voltage stress.” IET Power Electronics, 13, 12, pp. 2538–2546 (2020).
(19) A. Nadermohammadi, M. Maalandish, A. Seifi, P. Abolhassani, S.H. Hosseini, M. Farsadi, “A non-isolated single-switch ultra-high step-up DC–DC converter with coupled inductor and low-voltage stress on switch”, IET Power Electronics, 17, pp. 251–265 (2024).
(20) J. Ai, M. Lin, M. Yin, “A family of high step-up cascade DC–DC converters with clamped circuits.” IEEE Transactions on Power Electronics, 35, 5, pp. 4819–4834 (2020).
(21) H. Chen, X. Hu, Y. Huang, M. Zhang, B. Gao, “Improved DC–DC converter topology for high step-up applications.” IET Circuits, Devices & Systems, 13, 1, pp. 51–60 (2019).
(22) T.-I. Voicila, G.-C. Seritan, B.-A. Enache, “Analysis of bidirectional DC–DC power converters for screening systems of retired batteries.” Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 69, 3, pp. 311–316 (2024).
(23) G. Jothimani, K. Mahalingam, P. Karuppasamy, “A double-switch integrated high-gain quadratic boost converter for electric vehicle applications.” Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 70, 4, pp. 495–500 (2025).
Downloads
Published
Issue
Section
License
Copyright (c) 2026 REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
