A New Transformer-Less Quasi-Switched Converter with Continuous Load Current for Electric Vehicle Applications Using Robust Controller Approach

International Journal of Electrical and Electronics Engineering

© 2025 by SSRG - IJEEE Journal

Volume 12 Issue 7

Year of Publication : 2025

Authors : Rajeswari Vellaiswamy, Nalin Kant Mohanty

10.14445/23488379/IJEEE-V12I7P114

How to Cite?

Rajeswari Vellaiswamy, Nalin Kant Mohanty, "A New Transformer-Less Quasi-Switched Converter with Continuous Load Current for Electric Vehicle Applications Using Robust Controller Approach," SSRG International Journal of Electrical and Electronics Engineering, vol. 12,  no. 7, pp. 200-209, 2025. Crossref, https://doi.org/10.14445/23488379/IJEEE-V12I7P114

Abstract:

This article introduces a transformer-less modified quasi-switched non-isolated converter designed for electric vehicle charging applications. The primary feature of this quasi-arrangement is its ability to maintain continuous load current with low-order ripples and better voltage regulation while operating within a nominal duty cycle range. In existing configurations, many voltage multiplier cells or converters are employed to attain higher efficiency, but this leads to increased switching and conduction losses. To overcome these issues, the proposed topology uses fewer components, which improves efficiency by approximately 96.2% and results in a reduction in losses. The converter is controlled with a robust Model Predictive Control (MPC), which results in better output response, a peak overshoot at 0.3%, and faster settling times. Additionally, the operating principle, theoretical, and steady-state analysis, and comparisons to existing topologies are included. A 200W hardware prototype will be designed, built, and tested to evaluate the system’s performance and validate the experimental results.

Keywords:

Battery, Electric vehicle, Model predictive control, Non-isolated, PV system.

References:

[1] R. Venugopal et al., “Review on Unidirectional Non-Isolated High-Gain DC-DC Converters for EV Sustainable DC Fast Charging Applications,” IEEE Access, vol. 11, pp. 78299-78338, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[2] Hadi Tarzamni et al., “Non-Isolated High Step-Up DC-DC Converters: Comparative Review and Metrics Applicability,” IEEE Transactions on Power Electronics, vol. 39, no. 1, pp. 582-625, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[3] Ankit Kumar Singh et al., “High Voltage Gain Bidirectional DC-DC Converters for Supercapacitor Assisted Electric Vehicles: A Review,” CPSS Transactions on Power Electronics and Applications, vol. 7, no. 4, pp. 386-398, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[4] Sara Hasanpour, “New Structure of Single-Switch Ultra-High-Gain DC/DC Converter for Renewable Energy Applications,” IEEE Transactions on Power Electronics, vol. 37, no. 10, pp. 12715-12728, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[5] Gangavarapu Guru Kumar et al., “Switched Capacitor-Inductor Network Based Ultra-Gain DC-DC Converter Using Single Switch,” IEEE Transactions on Industrial Electronics, vol. 67, no. 12, pp. 10274-10283, 2020.
[CrossRef] [Google Scholar] [Publisher Link]
[6] Hossein Gholizadeh, Saman A. Gorji, and Dezso Sera, “A Quadratic Buck-Boost Converter With Continuous Input and Output Currents,” IEEE Access, vol. 11, pp. 22376-22393, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[7] Yijie Wang et al., “A Single Switch Quadratic Boost High Step Up DC-DC Converter,” IEEE Transactions on Industrial Electronics, vol. 66, no. 6, pp. 4387-4397, 2019.
[CrossRef] [Google Scholar] [Publisher Link]
[8] Vemparala Seshagiri Rao, and Kumaravel Sundaramoorthy, “Performance Analysis of Voltage Multiplier Coupled Cascaded Boost Converter With Solar PV Integration for DC Microgrid Application,” IEEE Transactions on Industry Applications, vol. 59, no. 1, pp. 1013-1023, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[9] Danyang Bao et al., “Switched Inductor Double Switch High Gain DC-DC Converter for Renewable Applications,” IEEE Access, vol. 9, pp. 14259-14270, 2021.
[CrossRef] [Google Scholar] [Publisher Link]
[10] Antonio Manuel Santos Spencer Andrade et al, “Hybrid High Voltage Gain Transformerless DC–DC Converter,” IEEE Transactions on Industrial Electronics, vol. 69, no. 3, pp. 2470-2479, 2022.
[CrossRef] [Google Scholar] [Publisher Link]
[11] Mohammad Farsijani et al., “Design and Implementation of a Single Switch High Gain Boost Topology: Structure, Ripple Control and ZCS,” IEEE Access, vol. 11, pp. 2092-2104, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[12] Amir Hossein Khanbabaie et al., “A Bidirectional Isolated DC-DC Converter with Low Voltage Stresses for Energy Storage Systems Integration,” IET Power Electron, vol. 17, no. 3, pp. 1621-1711, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[13] Zhixing Yan et al., “Ripple-Free Bidirectional DC-DC Converter with Wide ZVS Range for Battery Charging/Discharging System,” IEEE Transactions on Industrial Electronics, vol. 70, no. 10, pp. 9992-10002, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[14] Septimiu Lica, Dan Lascu, and Evelyn-Astrid Lovasz, “A New Step-Up-Down Quadratic DC-DC Converter with a Single Active Switch,” Journal of Computational and Applied Mathematics, vol. 436, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[15] Van-Cuong Bui et al., “A Novel Isolated DC-DC Converter for High Step-Down Applications,” IEEE Access, vol. 11, pp. 81545-81562, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[16] S.V.K. Naresh, Sankar Peddapati, and Mamdouh L. Alghaythi. “Anon-Isolated High Quadratic Step-Up Converter for Fuel Cell Electric Vehicle Applications,” International Journal of Circuit Theory and Applications, vol. 58, no. 8, pp. 3841-3864, 2023.
[CrossRef] [Google Scholar] [Publisher Link]
[17] Sara Hasanpour, and Sze Sing Lee, “New Step-Up DC/DC Converter with Ripple-Free Input Current,” IEEE Transactions on Power Electronics, vol. 39, no. 2, pp. 2811-2821, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[18] Guosheng Tian et al., “Isolated High Step-Up Soft-Switching Quasi-Z-Source DC-DC Converter,” IEEE Access, vol. 12, pp. 49927-49936, 2024.
[CrossRef] [Google Scholar] [Publisher Link]
[19] Xuefeng Hu et al., “A Single-Switch Coupled Inductor-based DC-DC Converter with High Gain and Low Voltage Stress,” IEEE Transactions on Power Electronics, pp. 1-13, 2025.
[CrossRef] [Google Scholar] [Publisher Link]
[20] Jie Ding et al., “A Single-Switch High Step-Up DC-DC Converter based on Three-Winding Coupled Inductor and Pump Capacitor Unit,” IEEE Transactions on Power Electronics, vol. 37, no. 3, pp. 3053-3061, 2022.
[CrossRef] [Google Scholar] [Publisher Link]