MAXIMUM RIPPLE ELIMINATING MULTI-LEVEL BIDIRECTIONAL DC-DC CONVERTER VIA OPTIMIZED DEEP LEARNING NETWORK
DOI:
https://doi.org/10.59277/RRST-EE.2026.1.21Keywords:
Personal mobility devices, Deep learning, Charging stations, Modified emperor penguin optimization, Duty cycleAbstract
In this research, a novel deep learning based Multi-level Bidirectional DC-DC converter using a modified Emperor Penguin Optimized multi-graph neural network (MEPO-MGN2) has been proposed. Grid power is converted to direct current by means of an AC-DC converter, and then a bidirectional multi-level DC-DC converter (MLDC) is used for the power transfer in both directions between the grid and PMDs. The proposed method utilizes an attention multi-graph convolution network (AMGCN) for the duty cycle (α) prediction of MLDC to regulate the flow of power between the grid and PMD, vice versa. This system employs multiple Proportional-Integral (PI) controllers to manage voltage and current for stable, optimized power transfer. Modified emperor penguin optimization (MEPO) is used to tune the parameters of MLDC, thereby achieving a well-regulated DC output voltage in the charging stations. The MEPO-MGN2 performance is evaluated, and implementation is carried out using the MATLAB platform. The efficacy of the proposed method is 98.5%, which is better than the other existing converter techniques.
References
(1) Z.M. Ali, M. Calasan, F.H. Gandoman, F. Jurado, S.H.A. Aleem, Review of battery reliability in electric vehicle and E-mobility applications, Ain Shams Engineering Journal, 15, 2, 102442 (2024).
(2) Y. Cao, J. Cui, S. Liu, X. Li, Q. Zhou, C. Hu, Y. Zhuang, Z. Liu, A holistic review on e-mobility service optimization: challenges, recent progress, and future directions, IEEE Transactions on Transportation Electrification, 10, 2, pp. 3712–3741 (2023).
(3) L. Prause, K. Dietz, Just mobility futures: challenges for e-mobility transitions from a global perspective, Futures, 141, 102987 (2022).
(4) M. Nigro, M. Ferrara, R. De Vincentis, C. Liberto, G. Valenti, Data-driven approaches for sustainable development of E-mobility in urban areas, Energies, 14, 13, 3949 (2021).
(5) L. Devarajan, S. Chellathurai, Aquila optimized nonlinear control for DC-DC boost converter with constant power load, Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 69, 4, pp. 419–424 (2024).
(6) G. Isha, P. Jagatheeswari, J. Gnana Malar, An elitist Harris Hawks optimized voltage stability enhancement in radial distribution system, Journal of Electrical Engineering & Technology, 18, pp. 2683–2693 (2023).
(7) S. Valedsaravi, A. El Aroudi, L. Martínez Salamero, Review of solid state transformer applications on electric vehicle DC ultra-fast charging station, Energies, 15, 15, 5602 (2022).
(8) D. Savio Abraham, R. Verma, L. Kanagaraj, S.R. Giri Thulasi Raman, N. Rajamanickam, B. Chokkalingam, K. Marimuthu Sekar, L. Mihet Popa, Electric vehicles charging stations’ architectures, criteria, power converters, and control strategies in microgrids, Electronics, 10, 16, 1895 (2021).
(9) M. Kuppusamy, N. Muthukumaran, R. Raja Lakshmi, R. Sangno, Multi-term islanding protection and load priority-based optimal shedding framework for maintaining voltage stability and loadability in microgrid systems, Electrical Engineering (2023).
(10) G. Rajendran, C.A. Vaithilingam, N. Misron, K. Naidu, M.R. Ahmed, A comprehensive review on system architecture and international standards for electric vehicle charging stations, Journal of Energy Storage, 42, 103099 (2021).
(11) J.H. Lee, S.J. Park, S.K. Lim, Improvement of multilevel DC/DC converter for e mobility charging station, Electronics, 9, 12, 2037 (2020).
(12) G. Sha, Q. Duan, W. Sheng, C. Ma, C. Zhao, Y. Zhang, J. Tian, Research on multi-port DC DC converter based on modular multilevel converter and cascaded H bridges for MVDC applications, IEEE Access, 9, pp. 95006–95022 (2021).
(13) X. Han, H. Wen, Analysis and design of modular multi-level DC/DC converter, 2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA), pp. 649–654 (2021).
(14) S. Sarkar, A. Das, An isolated single input multiple output DC–DC modular multilevel converter for fast electric vehicle charging, IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 4, 1, pp. 178–187 (2022).
(15) S.K. Dube, R. Nair, V. Beaston, P. Das, A multilevel three-phase integrated AC-DC bidirectional resonant converter for BESS, IEEE Journal of Emerging and Selected Topics in Power Electronics (2023).
(16) Y. Huang, S. Lin, H. Mo, Three-level bidirectional DC/DC intelligent control technology for photovoltaic charging station of electric vehicle combined with SVPWM algorithm, IEEE Access (2023).
(17) K.B. Ray, R. Kumar, SOC-based fast and stable charging control using multilevel DC-DC buck converter for EVs, IETE Journal of Research, 70, 2, pp. 2178–2192 (2024).
(18) 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).
(19) M. Duraisamy, Analysis and experimental validation of a non-isolated DC-DC SEPIC modified CUK combined converter, Rev. Roum. Sci. Techn. – Électrotechn. et Énerg., 70, 3, pp. 367–372 (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.