Document Type : Research Articles
Authors
1 Department of Electrical Engineering, Zabol Branch, Islamic Azad University, Zabol, Iran
2 Department of Electrical Engineering, Zahedan Branch, Islamic Azad University, Zahedan, Iran
Abstract
This study introduces a non-isolated semi-quadratic DC/DC buck-boost converter designed to enhance performance. Derived from a conventional CUK converter, the proposed topology operates in two distinct modes: one providing a semi-quadratic voltage gain of D(2−D)/(1−D)2 and the other offering a gain of D/(1−D). In addition, the proposed structure features constant input and output currents due to the presence of inductive filters at the input and output ports, which reduces the current stress on the capacitors at the output port and lowers the voltage ripple. Under steady-state conditions, the continuous conduction mode efficiency of the converter and small-signal modeling were analyzed by considering the effects of parasitic resistance. The results demonstrated lower total switching device power and a reduced component count than other buck-boost converters in dual-mode operation. The proposed converter was simulated using PLECS software. The experimental results were consistent with theoretical predictions due to their high efficiency and applications, particularly in photovoltaic systems and fuel cells.
Keywords
- Continuous input-output current
- dual mode operation
- parasitic conditions
- photo-voltaic application
- switching power device
Main Subjects
[1] R. Gopi and S. Sreejith, "Converter topologies in photovoltaic applications – A review," Renew. Sustain. Energy Rev., vol. 94, pp. 1-14, 2018, doi: 10.1016/j.rser.2018.05.047.
[2] M. H. Taghvaee, M. A. M. Radzi, S. M. Moosavain, H. Hizam, and M. H. Marhaban, "A current and future study on non-isolated DC–DC converters for photovoltaic applications," Renew. Sustain. Energy Rev., vol. 17, pp. 216-227, 2013, doi: 10.1016/j.asej.2021.06.027
[3] F. Blaabjerg, R. Teodorescu, Z. Chen, and M. Liserre, "Power converters and control of renewable energy systems," in Proc. 6th Int. Conf. Power Electron, pp. 1-20, Oct 18, 2004.
[4] F. Blaabjerg, C. Zhe, and S. B. Kjaer, "Power electronics as efficient interface in dispersed power generation systems," IEEE Trans. Power Electron., vol. 19, pp. 1184-1194, 2004, doi: 10.1109/TPEL.2004.833453.
[5] K. Nathan, S. Ghosh, Y. Siwakoti and T. Long, "A new dc–dc converter for photovoltaic systems: coupled-inductors combined cuk-sepic converter, " IEEE Trans. Energy Convers., vol. 34, no. 1, pp. 191-201, Mar 2019, doi: 10.1109/TEC.2018.2876454
[6] A. Torkan and M. Ehsani, "A novel nonisolated z-source dc–dc converter for photovoltaic applications, " IEEE Trans. Ind. Appl., vol. 54, no. 5, pp. 4574-4583, Sept.-Oct. 2018, doi:10.1109/TIA.2018.2833821
[7] K. V. G. Raghavendra, et al. "A comprehensive review of DC–DC converter topologies and modulation strategies with recent advances in solar photovoltaic systems, " J. Electron.; vol. 9, no. 1, Dec 26, 2019, doi:10.3390/electronics9010031.
[8] L. J. Jeremy, C.A. Ooi, J. Teh, " Non-isolated conventional DC-DC converter comparison for a photovoltaic system: a review," J. Renew. Sustain. Energy; vol. 12, no. 1, 2020, doi:10.1063/1.5095811.
[9] R. W. Erickson and D. Maksimovic, in Fundamentals of power electronics, 2nd ed. Boston: Kluwer Academic Publishers, 2001.
[10] F. Mumtaz, N. Z. Yahaya, S. T. Meraj, B. Singh, R. Kannan, and O. Ibrahim, "Review on non-isolated DC-DC converters and their control techniques for renewable energy applications," Ain Shams Eng. J., 2021, doi: 10.1109/TIE.2016.2608321.
[11] M. Adly and K. Strunz, "Irradiance-adaptive pv module integrated converter for high efficiency and power quality in standalone and dc microgrid applications," IEEE Trans. Ind Electron., vol. 65, pp. 436-446, 2018, doi: 10.1109/TIE.2017.2723860.
[12] S. Chen, T. Liang and K. Hu, “Design, analysis, and implementation of solar power optimizer for dc distribution system,” in IEEE Trans. Power Electron., vol. 28, no. 4, pp. 1764-1772, April 2013, doi: 10.1109/TPEL.2012.2213270.
[13] “SolarEdge Fixed String Voltage, Concept of Operation,” [Online]. Available: https://www.solaredge.com.
[14] J. D. Navamani, K. Vijayakumar, R. Jegatheesan, " Nonisolated high gain DC/DC converter by quadratic boost converter and voltage multiplier cell, " Ain Shams Eng. J.; pp.1397–406, 2018.
[15] J. D. Navamani, A. Lavanya, D. Almakhles, and M. J. Sathik, “A review on segregation of various high gain converter configurations for distributed energy sources,” Alexandria Eng. J., vol. 61, no. 1, pp. 675-700, Jan 2022, doi: 10.1109/JESTPE.2022.2985844.
[16] K. I. Hwu and T. J. Peng, "A novel buck–boost converter combining ky and buck converters," IEEE Trans. Power Electron., vol. 27, pp. 2236-2241, 2012, doi: 10.1109/TPEL.2011.2182208.
[17] H. Ardi and A. Ajami, "Study on a high voltage gain sepicbased dc–dc converter with continuous input current for sustainable energy applications," IEEE Trans. Power Electron., vol. 33, pp. 10403-10409, 2018, doi: 10.1109/TPEL.2018.2811123.
[18] S. Miao, F. Wang, and X. Ma, "A new transformerless buck–boost converter with positive output voltage," IEEE Trans. Ind. Electron., vol. 63, pp. 2965-2975, 2016, doi: 10.1109/TIE.2016.2518118
[19] M. R. Banaei, H. Ardi, and A. Farakhor, "Analysis and implementation of a new single-switch buck-boost dc/dc converter," IET Power Electron., vol. 7, pp. 1906-1914, 2014, doi: 10.1049/iet-pel.2013.0762.
[20] J. C. Rosas-Caro, J. E. Valdez-Resendiz, J. C. MayoMaldonado, A. Alejo-Reyes, and A. Valderrabano-Gonzalez, "Quadratic buck–boost converter with positive output voltage and minimum ripple point design," IET Power Electron., vol. 11, pp. 1306-1313, 2018, doi:10.1049/ietpel.2017.0090.
[21] S. A. Gorji, A. Mostaan, H. T. My, and M. Ektesabi, "Nonisolated buck–boost dc–dc converter with quadratic voltage gain ratio," IET Power Electron., vol. 12, pp. 1425-1433, 2019, doi:10.1049/iet-pel.2018.5703.
[22] M. R. Banaei, and H. A. F. Bonab, "A high efficiency nonisolated buck-boost converter based on zeta converter, " IEEE Trans. Ind. Electron., pp. 1-1, 2019, doi: 10.1109/TIE.2019.2902785.
[23] S. H. Hosseini, R. Ghazi, and S. K. Movahhed, "A novel high gain single-switch dc-dc buck-boost converter with continuous input and output power," at the 24th IEEE Elect. Power Distribution Conf. (EPDC), Khorramabad, Iran, pp. 10-15, 2019, doi: 10.1109/EPDC.2019.8903599.
[24] M. R. Banaei and H. A. F. Bonab, “A novel structure for single- switch nonisolated transformerless buck-boost dc-dc converter,” IEEE Trans. Ind. Electron., vol. 64, no. 1, pp. 198-205, Jan. 2017, doi: 10.1109/TIE.2016.2608321.
[25] 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 Trans. on Power Electronics, vol. 33, no. 12, pp. 10317–10325, 2018,
doi: 10.1109/TPEL.2018.2799876.
doi: 10.1109/TPEL.2018.2799876.
[26] 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 Trans. Power Electron., vol. 33, pp. 4157-4166, 2018, doi: 10.1109/TPEL.2017.2717462.
[27] A. Sarikhani, B. Allahverdinejad, M. Hamzeh, and E. Afjei, "A continuous input and output current quadratic buck-boost converter with positive output voltage for photovoltaic applications," J. Sol. Energy, vol. 188, pp. 19-27, 2019, doi:10.1016/j.solener.2019.05.025.
[28] M. Veerachary, M.R. Khuntia, "Design and analysis of twoswitch-based enhanced gain buck–boost converters". IEEE Trans. Ind. Electron., vol. 69, no. 4, pp. 3577–3587, 2022, doi:10.1109/TIE.2021.3071696.
[29] M. Okati, M. Eslami, M. J. Shahbazzadeh, H. Shareef, "A new transformerless quadratic buck–boost converter with high voltage gain ratio and continuous input/output current port,". IET Power Electron., vol. 15, no. 13, pp. 1280-1294, 2022, doi: 10.1049/pel2.12304.
[30] P. K. Maroti, S. Padmanaban, J. B. Holm-Nielse, M. S. Bhaskar, M. Meraj, A. Iqbal, "A new structure of high voltage gain SEPIC converter for renewable energy application, ". IEEE Access, vol. 7, pp. 89857–89868, 2019, doi: 10.1109/ACCESS.2019.2925564.
[31] J. C. Mayo-Maldonado, J. E. Valdez-Resendiz, P. M. GarciaVite, J. C. Rosas-Caro, M. R. Rivera-Espinosa and A. Valderrabano-Gonzalez, "Quadratic buck–boost converter with zero output voltage ripple at a selectable operating point," IEEE Trans. Ind. Appl., vol. 55, no. 3, pp. 2813-2822, May-June 2019, doi: 10.1109/ACCESS.2019.2925564.
[32] K. Yari, S. H. Shahalami and H. Mojallali, "A novel nonisolated buck–boost converter with continuous input current and semiquadratic voltage gain," in IEEE J. Emerg. and Sel. Topics in Power Electron., vol. 9, no. 5, pp. 6124-6138, Oct. 2021, doi: 10.1109/JESTPE.2021.3069788.
[33] M. Okati, M. Eslami & M. J. Shahbazzadeh, "A non-isolated dc-dc converter with dual working modes and positive output voltage", Electric Power Compon. and Syst., vol.49, pp. 1143-1157, 2022, doi: 10.1080/15325008.2022.2049662.
[34] A. Mahmood et al., "A non-inverting high gain dc-dc converter with continuous input current," in IEEE Access, vol. 9, pp. 54710-54721, 2021, doi: 10.1109/ACCESS.2021.3070554.
[35] A. Sarikhani, B. Allahverdinejad, M. Hamzeh, "A nonisolated buck–boost DC–DC converter with continuous input current for photovoltaic applications," in IEEE J. Emerg. Sel. Top. Power Electron, vol. 9, pp.804–811, 2021, doi: 10.1109/JESTPE.2020.2985844.
[36] J. Li and J. Liu, ''A negative-output high quadratic conversion ratio dc-dc converter with dual working modes,'' IEEE Trans. Power Electron., vol. 34, no. 6, pp. 5563-5578, June 2019, doi: 10.1109/TPEL.2018.2870421.
[37] M. A. Abbaszadeh, M. Monfared, and H. Heydari-doostabad, "High buck in buck and high boost in boost dual-mode inverter (Hb2DMI)," IEEE Trans. Ind. Electron., vol. 68, pp. 4838-4847, 2021, doi: 10.1109/TIE.2020.2988240.
[38] S. Hasanpour, A. Baghramian and H. Mojallali, ''analysis and modeling of a new coupled-inductor buck–boost dc-dc converter for renewable energy applications,'' in IEEE Trans. Power Electron., vol. 35, no. 8, pp. 8088-8101, Aug. 2020, doi: 10.1109/TPEL.2019.2962325
[39] H. Gholizadeh, S. A. Gorji and D. Sera, "A Quadratic BuckBoost Converter with Continuous Input and Output Currents," in IEEE Access, vol. 11, pp. 22376-22393, 2023, doi: 10.1109/ ACCESS.2023.2981331.
[40] 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
[41] S. Miao, N. Lyu, X. Jiang, W. Liu and Y. Jin, "A New FifthOrder Boost Converter with Dual Operating Modes and Wider Conversion Ratios for Renewable Energy Applications," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 69, no. 12, pp. 4914-4918, Dec. 2022, doi: 10.1109/TCSII.2022.3192641.
[42] SVK. Naresh, S. Peddapati. "Complementary switching enabled cascaded boost-buck-boost (BS-BB) and buckboost-buck (BB-BU) converters". Int J Circ Theor Appl, vol. 49, no. 9, pp. 2736– 2753. 2021, doi: 10.1002/cta.3034.
[43] 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, doi:10.22111/ieco.2024.48295.1548.
[44] 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, doi.:10.22111/ieco.2024.48683.1565.
[45] M. Elmi, M.R. Banaei, and H. Afsharirad, "Study on a NonIsolated 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, doi: 10.22111/ieco.2024.48587.1558.
[46] K. Yari, S. Hasanpour. "A Minimum Phase DC-DC Converter with Continuous Input Current and High Voltage Gain", International Journal of Industrial ElectronicsControl and Optimization, vol. 7, no. 4, pp. 301-312, 2024, doi:10.22111/ieco.2024.48842.1572.
[47] R. D. Middlebrook, "Small-signal modeling of pulse-width modulated switched-mode power converters," Proc. of the IEEE, vol. 76, pp. 343-354, 1988, doi: 10.1109/5.4421.
[48] Y. Zhang, J. Liu, X. Ma, J. Feng, "Comparison of conventional DC-DC converter and a family of diodeassisted DC-DC converter in renewable energy applications, "Journal of Power Electron. vol. 14, pp. 203–216, 2014, doi:10.6113/JPE.2014.14.2.203.
[49] M. Shen, A. Joseph, J. Wang, F. Z. Peng, and D. J. Adams, "Comparison of traditional inverters and z -source inverter for fuel cell vehicles," IEEE Trans. Power Electron., vol. 22, pp. 1453-1463, 2007, doi: 10.1109/TPEL.2007.900505
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