High Step-up Switched-Capacitor Current-Fed Soft-Switching Converter

Subject Areas : Electronic Engineering

Jalil  Jalili ¹ (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Sayyed Mohammad Mehdi  Mirtalaei ² (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Mohammad Reza  Mohammadi ³ (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Sayyed Behrooz  Majidi ⁴ (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)

Received: 2022-12-24 Accepted : 2023-04-18 Published : 2023-11-22

Keywords: Switched-capacitor converter, high step-up, coupled inductor, Soft-Switching,

Abstract :

In this paper, a non-isolated current-fed high step-up soft-switching converter, is presented. In proposed converter are used of 2-stge switched capacitor and a soft switching active cell. Compared to its high step-up counterpart, the proposed converter has a higher voltage gain. In this converter, an active clamp circuit is used to absorb the energy of leakage inductor, therefore, the ZVS for switches. Also, voltage stresses on the switches are low. In this paper, the operational principle and characteristics of proposed converter are presented, and in order to verify the proposed converter, a 20-400V, 200W prototype converter is simulated and implemented and experimental results are provided.

References:

1. A. Annuk, “Methods for increasing shares of self-consumption in small PV solar energy applications,” 9th International Conference on Renewable Energy Research and Application (ICRERA), 2020, pp. 184–187, doi: 10.1109/ICRERA49962.2020.9242902.


2. M. Foroughi, M. Amini, E. Adib, “ Providing a Dual-Input Soft-Switching Boost Converter with Power Factor Correction Capability”, Technovations in Electrical Engineering & Green Energy System, vol. 1, no. 4, pp. 1–13, 2023, doi: 10.30486/teeges.2022.1965800.1030.


3. R. R. Gopi and S. Sreejith, “Converter topologies in photovoltaic applications–A review,” Renewable and Sustainable Energy Reviews, vol. 94, pp. 1–14, 2018, doi: 10.1016/j.rser.2018.05.047.


4. W. Li and X. He, “Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications,” IEEE Transactions on Industrial Electronics, vol. 58, no. 4, pp. 1239–1250, Apr. 2011, doi: 10.1109/TIE.2010.2049715.


5. A. Chub, D. Vinnikov, F. Blaabjerg, and F. Z. Peng, “A Review of Galvanically Isolated Impedance-Source DC–DC Converters,” IEEE Transactions on Power Electronics, vol. 31, no. 4, pp. 2808–2828, Apr. 2016, doi: 10.1109/TPEL.2015.2453128.


6. S. M. M. Mirtalaei, R. Jaberi, "Analysis of a high step-up boost-flyback converter for solar energy applications", Journal of Intelligent Procedures in Electrical Technology, vol. 9, no. 34, pp. 19-28, Aug. 2018, doi: 20.1001.1.23223871.1397.9.34.3.4.


7. Y. Zhao, W. Li, and X. He, “Single-phase improved active clamp coupled-inductor-based converter with extended voltage doubler cell,” IEEE Transactions on Power Electronics, vol. 27, no. 6, pp. 2869–2878, 2011, doi: 10.1109/TPEL.2011.2176752.


8. J. Jalili, S. M. M. Mirtalaei, M. R. Mohammadi, and B. Majidi, “A ZVS high step-up converter based on an integrated boost-cuk topology,” Electrical Engineering., pp. 1–10, 2021, doi: 10.1007/s00202-021-01340-3.


9. D. Taheri, G. Shahgholian, and M. M. Mirtalaei, “Analysis, design and implementation of a high step‐up multi‐port non‐isolated converter with coupled inductor and soft switching for photovoltaic applications,” IET Generation, Transmission & Distribution, vol. 16, no. 17, pp. 3473–3497, 2022, doi: 10.1049/gtd2.12537.


10. J. Jalili, S. M. M. Mirtalaei, M. Mohammadi, and S. B. Majidi, “A non-isolated high step-up soft-switching converter with coupled-inductor,” Journal of Intelligent Procedures in Electrical Technology, no. Articles in Press, pp. 1–14, 2022, doi.org/10.1007/s00202-021-01340-3.


11. A. Amir, A. Amir, C. H. Seng, A. El Khateb, J. Selvaraj, and N. A. Rahim, “Application of modified classical numerical methods for DMPPT on Buck and Boost converters,” Solar Energy, vol. 173, pp. 437–448, 2018, doi:10.1016/j.solener.2018.07.088.