Document Type : Research Articles

Authors

1 Department of Electrical Engineering, Na.C., Islamic Azad University, Najafabad, Iran

2 Department of Electrical engineering, Ram.C., Islamic Azad University, Ramsar, Iran.

Abstract

This paper presents a novel non-isolated DC-DC converter topology with several significant advantages. First, the input current remains continuous, thereby reducing the current stress on the input filter capacitor. Second, the converter utilizes the same number of inductors as conventional topologies such as SEPIC, Zeta, and Ćuk converters. Third, it achieves high voltage gain at relatively low duty cycles. Fourth, the maximum voltage stress on the semiconductors remains well below the output voltage, ensuring improved device reliability. Fifth, the design incorporates only a single switch, simplifying the drive circuitry. Sixth, the voltage stress on the switch is significantly lower than the output voltage. Seventh, a quadruple voltage-lift is realized using an enhanced diode–capacitor voltage multiplier integrated at both stages of the converter. Finally, although the power circuit employs 15 diodes and 14 capacitors, the topology maintains a high voltage gain density, justifying the component count. Experimental results are provided to validate the theoretical analysis. The implemented prototype successfully boosts an input voltage of 20 V to an output of 1200 V at a 50% duty cycle, delivering an output power of less than 200 W.

Keywords

Main Subjects

[1] A. Yavari A, CJ. Harrison, SA. Gorji, M. Shafiei, "Hydrogen 4.0: A Cyber–Physical System for Renewable Hydrogen Energy Plants," Sensors. 2024; 24(10):3239. Doi: 10.3390/s24103239
[2] S. Gorji, "Challenges and opportunities in green hydrogen supply chain through metaheuristic optimization," Journal of Computational De- sign and Engineering, Volume 10, Issue 3, June 2023, Pages 1143–1157, https://doi.org/10.1093/jcde/qwad043
[3] A. Ganjavi, S. A. Gorji, A. Hakemi, A. Moradi and D. Sera, "Design and Implementation of an SiC-based 48 V-380 V Dual Active Bridge DC- DC Converter for Batteries Employed in Green Hydrogen Microgrids," 2022 IEEE 7th Southern Power Electronics Conference (SPEC), Nadi, Fiji, 2022, pp. 1-6, doi: 10.1109/SPEC55080.2022.10058353.
[4] A. Moradi, S. A. Gorji, A. Hakemi, A. Ganjavi and D. Sera, "Study of a DC Micro-Gird Configuration to Produce Hydrogen (DCMG-H2)," 2022 IEEE 7th Southern Power Electronics Conference (SPEC), Nadi, Fiji, 2022, pp. 1-5, Doi: 10.1109/SPEC55080.2022.10058435.
[5] S. A. Gorji, "Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids," in IEEE Access, vol. 10, pp. 109677- 109687, 2022, doi: 10.1109/ACCESS.2022.3214581.
[6] S. Toofan, B. Fathipour, and E. Babaei, "A Single Switch Transformer-Less DC-DC Converter with Continuous Input Current for Photovoltaic Applications," International Journal of Industrial Electronics Control and Optimization, vol. 7, no. 4, pp. 281-290, 2024.
[7] K. Yari and S. Hasanpour, "A Minimum Phase DC-DC Converter with High Voltage Gain and Continuous Input Current," International Journal of Industrial Electronics Control & Optimization, vol. 7, no. 4, 2024.
[8] S. Ding, F. Wang, "A New Negative Output Buck–Boost Converter with Wide Conversion Ratio, " IEEE Trans. Ind. Electron. 2017, 64, 9322– 9333. Doi: 10.1109/TIE.2017.2711541.
[9] B. Allahverdinejad, S.A. Modaberi, " Ajami, A. A Nonisolated Buck- Boost DC–DC Converter with Continuous Input Current and Wide Conversion Ratio Range for Photovoltaic Applications, " In Proceedings of the 2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), Tehran, Iran, 1–3 February 2022; pp. 491–497, Doi: 10.1109/PEDSTC53976.2022.9767217.
[10] S.V.K. Naresh, S. Peddapati, M.L. Alghaythi, "NonIsolated High Gain Quadratic Boost Converter Based on Inductor’s Asymmetric Input Voltage, " IEEE Access 2021, 9, 162108–162121. Doi:10.1109/ACCESS.2021.3133581.
[11] M. Elmi, M. R. Banaei, and H. Afsharirad, "Study on a Non-Isolated High Step-Up SEPIC-Based DC-DC Converter with Continuous Input Current for Photovoltaic Applications," International Journal of Industrial Electronics Control and Optimization, vol. 8, no. 1, pp. 95-104, 2025.
[12] S. Hasanpour and T. Nouri, "A New Active Clamp QuasiResonant High Step-Up DC/DC Converter Based on BuiltIn Transformer with Low Voltage Stress," IEEE Transactions on Power Electronics, 2025.
[13] S. Hasanpour, A. Baghramian, and H. Mojallali, "Analysis and modeling of a new coupled-inductor buck–boost DC–DC converter for renewable energy applications," IEEE Transactions on Power Electronics, vol. 35, no. 8, pp. 8088-8101, 2019.
[14] A. Mizani, M. Shoushtari, A. Shoulaie, "A Novel Quadratic High Step-up DC-DC converter, " In Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), Tehran, Iran, 4–6 February 2020; pp. 1–6, Doi:10.1109/PEDSTC49159.2020.9088469.
[15] D. Sun et al., "Modeling, Impedance Design, and Efficiency Analysis of Quasi- Z Source Module in Cascaded Multilevel Photovoltaic Power System, " in IEEE Transactions on Industrial Electronics, vol. 61, no. 11, pp. 6108-6117, Nov. 2014, Doi: 10.1109/TIE.2014.2304913.
[16] S. A. Gorji, H. Gholizadeh, and D. Sera, "A new nonisolated high- gain single-switch DC-DC converter with continuous input current, " in IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society, Singapore, Singapore, 2023, pp. 1-5.
[17] J. C. Rosas-Caro, J. E. Valdez-Resendiz, J. C. MayoMaldonado, A. Alejo-Reyes, and A. ValderrabanoGonzalez, "Quadratic buck–boost converter with positive output voltage and minimum ripple point design, " IET Power Electronics, vol. 11, pp. 1306–1313, 2018.
[18] R. Loera-Palomo, J. A. Morales-Saldan˜a, M. Rivero, C. A´ lvarez-Mac´ıas, and C. A. Herna´ndez-Jacobo, "Noncascading quadratic buck-boost con- verter for photovoltaic applications, " Micromachines, vol. 12, no. 984, 2021.
[19] S. Miao, F. Wang, and X. Ma, "A new transformerless buck–boost converter with positive output voltage, " IEEE Transactions on Industrial Electronics, vol. 63, no. 5, pp. 2965-2975, May 2016.
[20] N. Zhang, G. Zhang, K. W. See, and B. Zhang, "A singleswitch quadratic buck–boost converter with continuous input port current and continuous output port current, " IEEE Transactions on Power Electronics, vol. 33, no. 5, pp. 4157-4166, May 2018.
[21] P. Mart´ın Garc´ıaVite, C. A. Soriano–Rangel, J. C. Rosas–Caro, and F. Mancilla–David, "A DC–DC converter with quadratic gain and input current ripple cancellation at a selectable duty cycle, " Renewable Energy, vol. 101, pp. 431-436, 2017.
[22] P. K. Maroti, S. Padmanaban, J. B. Holm-Nielsen, M. S. Bhaskar, M. Meraj, and A. Iqbal, "A new structure of high voltage gain SEPIC converter for renewable energy applications, " IEEE Access, vol. 7, pp. 89857-89868, 2019.
[23] S. Ding and F. Wang, "A new negative output buck–boost converter with wide conversion ratio, " IEEE Transactions on Industrial Electronics, vol. 64, no. 12, pp. 9322-9333, Dec. 2017.
[24] S. A. Gorji, A. Mostaan, H. Tran My, and M. Ektesabi, "Non-isolated buck–boost DC–DC converter with quadratic voltage gain ratio, " IET Power Electronics, vol. 12, pp. 1425–1433, 2019.
[25] H. Gholizadeh, S. A. Gorji, E. Afjei, and D. Sera, "Design and implementation of a new Cuk-based step-up DC–DC converter, " Energies, vol. 14, no. 6975, 2021.
[26] J. E. Valdez-Resendiz, J. C. Rosas-Caro, J. C. MayoMaldonado, and A. Llamas-Terres, "Quadratic boost converter based on stackable switching stages, " IET Power Electronics, vol. 11, pp. 1373-1381, 2018.
[27] F. Wang, "A novel quadratic boost converter with low current and volt- age stress on power switch for fuel-cell system applications, " Renewable Energy, vol. 115, pp. 836-845, 2018.
[28] S. Ghabeli Sani, F. Mohammadi, M. R. Banaei, and M. Farhadi- Kangarlu, "Design and implementation of a new high step-up DC-DC converter for renewable applications, " International Journal of Circuit Theory and Applications, vol. 47, pp. 464–482, 2019.
[29] A. Amir, H. S. Che, A. Amir, A. El Khateb, and N. Abd Rahim, "Transformerless high gain boost and buck-boost DC-DC converters based on extendable switched capacitor (SC) cell for stand-alone photovoltaic system, " Solar Energy, vol. 171, pp. 212-222, 2018.
[30] M. A. Al-Saffar and E. H. Ismail, "A high voltage ratio and low stress DC–DC converter with reduced input current ripple for fuel cell source, " Renewable Energy, vol. 82, pp. 35-43, 2015.
[31] S. H. Hosseini, R. Ghazi, and S. K. Movahhed, "A novel high gain single-switch DC-DC buck-boost converter with continuous in- put and output power, " in 2019 24th Electrical Power Distribution Conference (EPDC), Khoramabad, Iran, 2019, pp. 10-15. 10.1109/EPDC.2019.8903599.
[32] A. Iqbal, S. Gore, P. K. Maroti, and A. Shakoor, "A new high gain modified boost converter for renewable energy application with closed loop control, " in IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, 2020, pp. 3157-3163.
[33] Y. Almalaq and M. Matin, "Three topologies of a nonisolated high gain switched-inductor switched-capacitor step-up Cuk converter for renewable energy applications, " Electronics, vol. 7, no. 94, 2018.
[34] H. Hosseinpour, M. Ahmadi, A. Seifi, and S. R. Mousavi Aghdam, "A new transformerless semi-quadratic buck-boost converter based on com- bination of Cuk and traditional buck–boost converters, " International Journal of Circuit Theory and Applications, vol. 50, no. 11, pp. 3926- 3948, 2022.
[35] M. R. Banaei and H. A. F. Bonab, "A novel structure for single- switch nonisolated transformerless buck–boost DC-DC converter, " IEEE Transactions on Industrial Electronics, vol. 64, no. 1, pp. 198-205, Jan. 2017.
[36] M. R. Banaei and S. G. Sani, "Analysis and implementation of a new SEPIC-based single-switch buck–boost DC–DC converter with continuous input current, " IEEE Transactions on Power Electronics, vol. 33, no. 12, pp. 10317-10325, Dec. 2018.
[37] A. Sarikhani, B. Allahverdinejad, and M. Hamzeh, "A nonisolated buck–boost DC–DC converter with continuous input current for pho- tovoltaic applications, " IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 9, no. 1, pp. 804-811, Feb. 2021.
[38] H. Gholizadeh, R. Sharifi Shahrivar, M. R. Hashemi, E. Afjei, and S. A. Gorji, "Design and implementation of a single-switch step-up DC-DC converter based on cascaded boost and Luo converters, " Energies, vol. 14, no. 3584, 2021.
[39] S. Mahdizadeh, H. Gholizadeh, and S. A. Gorji, "A power converter based on the combination of Cuk and positive output super lift Luo converters: Circuit analysis, simulation and experimental validation, " IEEE Access, vol. 10, pp. 52899-52911, 2022.
[40] S. V. K. Naresh, S. Peddapati, and M. L. Alghaythi, "Nonisolated high gain quadratic boost converter based on inductor’s asymmetric input voltage, " IEEE Access, vol. 9, pp. 162108-162121, 2021.
[41] K. Varesi, N. Hassanpour, and S. Saeidabadi, "Novel high step-up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications, " International Journal of Circuit Theory and Applications, vol. 48, pp. 1820–1837, 2020.
[42] T. Rahimi, M. R. Islam, H. Gholizadeh, S. Mahdizadeh, and E. Afjei, "Design and implementation of a high stepup DC-DC converter based on the conventional boost and buck-boost converters with high value of the efficiency suitable for renewable application, " Sustainability, vol. 13, no. 10699, 2021.
[43] M. Zaid, C.-H. Lin, S. Khan, J. Ahmad, M. Tariq, A. Mahmood, A. Sarwar, B. Alamri, and A. Alahmadi, "A family of transformerless quadratic boost high gain DC-DC converters, " Energies, vol. 14, no. 4372, 2021.
[44] S. Sadaf, N. Al-Emadi, P. K. Maroti, and A. Iqbal, "A new high gain active switched network-based boost converter for DC microgrid application, " IEEE Access, vol. 9, pp. 68253-68265, 2021.
[45] T. Rahimi, L. Ding, H. Gholizadeh, R. S. Shahrivar, and R. Faraji, "An ultra high step-up DC–DC converter based on the boost, Luo, and voltage doubler structure: Mathematical expression, simulation, and experimental, " IEEE Access, vol. 9, pp. 132011-132024, 2021.
[46] H. Gholizadeh and L. Ben-Brahim, "A new non-isolated high-gain single-switch DC–DC converter topology with a continuous input current, " Electronics, vol. 11, no. 2900, 2022.
[47] S. Mahdizadeh, H. Gholizadeh, R. Shahrivar, E. Afjei, and A. Mosallanejad, "An ultra high step-up DC-DC converter based on VMC, POSLLC, and boost converter, " IET Power Electron., vol. 15, pp. 901–918, 2022.
[48] Y. Zhang, H. Liu, J. Li, M. Sumner, and C. Xia, "DC–DC boost converter with a wide input range and high voltage gain for fuel cell vehicles, " IEEE Trans. Power Electron., vol. 34, no. 5, pp. 4100-4111, May 2019.
[49] H. Gholizadeh and S. Hasanpour, "A New Quadratic CUKBased Step-Up DC/DC Converter Without Right Hand Plane Zero," International Journal of Industrial Electronics Control and Optimization, vol. 8, no. 1, pp. 25-35, 2025.
[50] R. Hazratian and E. Afjei, "An Improved Boost Topology According to the Voltage Lift Technique," International Journal of Industrial Electronics Control and Optimization, 2025.