A Single-Switch DC-DC High Step-Up Converter with Soft Switching for Photovoltaic Applications

Subject Areas : Electronic Engineering

Tayebeh Shamsi ¹ , Majid Delshad ² , Ehsan Adib ³ , Mohammad Rouhollah Yazdani ⁴

1 - Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
2 - Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
3 - Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran
4 - Department of Electrical Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

Received: 2023-04-09 Accepted : 2023-11-02 Published : 2024-12-20

Keywords: DC-DC converters, High step-up, Single-switch, Soft switching, Efficiency,

Abstract :

A single-switch DC-DC high step-up converter is presented in this paper. There are soft switching conditions in the proposed converter for switching on and off time, which increases efficiency. In order to increase the gain, two coupled inductors have been used, and the leakage inductance of the coupled inductors has been used to create a soft switching condition, and the minimal auxiliary element has been used in the proposed converter. In the proposed converter, only one switch is used, and the condition of the converter is no different from a basic converter in terms of the control circuit. Therefore, the converter does not need to design a new control circuit. The auxiliary circuit added to the converter with a minimal element, provides soft switching conditions for the switch at turn-on, under zero current and at turn-off, under zero voltage, which, in addition to increased efficiency, the circuit has a simple structure. Therefore, the innovation of the paper is to present a switching converter high step-up soft without imposing an additional switch and with a low number of elements. The proposed converter is simulated after full theoretical analysis at 400 W output power, which shows the efficiency of 97.2 percent, in addition to proving the theoretical analysis. Also, the prototype of the converter is made and the experimental results obtained prove the theoretical and simulation results.

References:

[1] N. Hou, L. Ding, P. Gunawardena, T. Wang, Y. Zhang and Y. W. Li, “A Partial Power Processing Structure Embedding Renewable Energy Source and Energy Storage Element for Islanded DC Microgrid,” IEEE Transactions on Power Electronics, vol. 38, no. 3, pp. 4027–4039, Mar 2023, doi: 10.1109/TPEL.2022.3221349.
[2] S. Hasanpour, Y. P. Siwakoti and F. Blaabjerg, “A New High Efficiency High Step-Up DC/DC Converter for Renewable Energy Applications,” IEEE Transactions on Industrial Electronics, vol. 70, no. 2, pp. 1489–1500, Feb 2023, doi: 10.1109/TIE.2022.3161798.
[3] Y. Guan, S. Mohamadian, X. She and C. Cecati, “Guest Editorial: Emerging Topics of DC–DC Converters for Solar PV,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 14–17, Jan 2023, doi: 10.1109/JESTIE.2022.3223311.
[4] M. Uno, Y. Sasaki and Y. Fujii, “Fault Tolerant Modular Differential Power Processing Converter for Photovoltaic Systems,” IEEE Transactions on Industry Applications, vol. 59, no. 1, pp. 1139–1151, Jan 2023, doi: 10.1109/TIA.2022.3210074.
[5] M. Uno, T. Suzuki and Y. Fujii, “Module-to-Panel Modular Differential Power Processing Converter With Isolated DC Bus for Photovoltaic Systems Under Partial Shading,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 97–108, Jan 2023, doi: 10.1109/JESTIE.2022.3206166.
[6] L. Xu, R. Ma, R. Xie, Sh. Zhuo, Y. Huangfu and F. Gao, “Offset-Free Model Predictive Control of Fuel Cell DC–DC Boost Converter With Low-Complexity and High-Robustness,” IEEE Transactions on Industrial Electronics, vol. 70, no. 6, pp. 5784–5796, Jun 2023, doi: 10.1109/TIE.2022.3198249.
[7] K. Zaoskoufis and E. C. Tatakis, “Isolated ZVS-ZCS DC–DC High Step-Up Converter With Low-Ripple Input Current,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 2, no. 4, pp. 464–480, Oct 2021, doi: 10.1109/JESTIE.2021.3063913.
[8] J. Lee, M. Kim, S. Kim and S. Choi, “An Isolated Single-Switch ZCS Resonant Converter With High Step-Up Ratio,” IEEE Transactions on Power Electronics, vol. 36, no. 10, pp. 11555–11564, Oct 2021, doi: 10.1109/TPEL.2021.3072647.
[9] N. Yang, J. Zeng, R. Hu and J. Liu, “Analysis and Design of an Isolated High Step-Up Converter Without Voltage-Drop,” IEEE Transactions on Power Electronics, vol. 37, no. 6, pp. 6939–6950, Jun 2022, doi: 10.1109/TPEL.2021.3138493.
[10] P. H. Feretti, F. L. Tofoli and E. R. Ribeiro, “Family of Non-Isolated High Step-Up DC–DC Converters Based on the Multi-State Switching Cell,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 5, pp. 5882–5893, Oct 2022, doi:10.1109/JESTPE.2022.3160280.
[11] P. Talebi, M. Packnezhad and H. Farzanehfard, “Fully Soft-Switched Ultra-High Step-Up Converter With Very Low Switch Voltage Stress,” IEEE Transactions on Power Electronics, vol. 38, no. 3, pp. 3523–3530, Mar 2023, doi: 10.1109/TPEL.2022.3224831.
[12] B. X. Zhu, Y. Liu, Sh. Zhi, K. Wang and J. Liu, “A Family of Bipolar High Step-Up Zeta–Buck–Boost Converter Based on “Coat Circuit”,” IEEE Transactions on Power Electronics, vol. 38, no. 3, pp. 3328–3339, Mar 2023, doi: 10.1109/TPEL.2022.3221781.
[13] M. Farsijani, S. Abbasian, H. Hafezi and A. Abrishamifar, “A High Step-Up Cost Effective DC-to-DC Topology Based on Three-Winding Coupled-Inductor,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 50–59, Jan 2023, doi: 10.1109/JESTIE.2022.3217017.
[14] T. Yao and W. Wang, “Analysis and Design of Three-End Planar Coupled Inductor Based DC–DC Converter,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 28–36, Jan 2023, doi: 10.1109/JESTIE.2022.3173177.
[15] Y. Zheng, W. Xie and K. M. Smedley, “A Family of Interleaved High Step-Up Converters With Diode–Capacitor Technique,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 2, pp. 1560–1570, Jun 2020, doi: 10.1109/JESTPE.2019.2907691.
[16] A. Shoaei, K. Abbaszadeh and H. Allahyari, “A Single-Inductor Multi-Input Multilevel High Step-Up DC–DC Converter Based on Switched-Diode-Capacitor Cells for PV Applications,” IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 4, no. 1, pp. 18-27, Jan 2023, doi: 10.1109/JESTIE.2022.3173178.
[17] Y. Ye, Sh. Chen and Y. Yi, “Switched-Capacitor and Coupled-Inductor-Based High Step-Up Converter With Improved Voltage Gain,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 9, no. 1, pp. 754–764, Feb 2021, doi: 10.1109/JESTPE.2020.2971525.
[18] I. P. Rosas, E. Agostini and C. B. Nascimento, “Single-Switch High-Step-Up DC-DC Converter Employing Coupled Inductor and Voltage Multiplier Cell,” IEEE Access, vol. 10, pp. 82626–82635, Aug 2022, doi: 10.1109/ACCESS.2022.3196563.
[19] S. Abbasian, H. S. Gohari, M. Farsijani, K. Abbaszadeh, H. Hafezi and Sh. Filizadeh, “Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current,” IEEE Access, vol. 10, pp. 33482–33491, Mar 2022, doi: 10.1109/ACCESS.2022.3161456.
[20] P. Mohseni, S. Rahimpour, M. Dezhbord, Md. R. Islam and K. M. Muttaqi, “An Optimal Structure for High Step-Up Nonisolated DC–DC Converters With Soft-Switching Capability and Zero Input Current Ripple,” IEEE Transactions on Industrial Electronics, vol. 69, no. 5, pp. 4676–4686, May 2022, doi: 10.1109/TIE.2021.3080202.
[21] T. Nouri, M. Shaneh, M. Benbouzid and N. V. Kurdkandi, “An Interleaved ZVS High Step-Up Converter for Renewable Energy Systems Applications,” IEEE Transactions on Industrial Electronics, vol. 69, no. 5, pp. 4786–4800, May 2022, doi: 10.1109/TIE.2021.3080211.
[22] P. Mohseni, Sh. Mohammadsalehian, Md. R. Islam, K. M. Muttaqi, D. Sutanto and P. Alavi, “Ultrahigh Voltage Gain DC–DC Boost Converter With ZVS Switching Realization and Coupled Inductor Extendable Voltage Multiplier Cell Techniques,” IEEE Transactions on Industrial Electronics, vol. 69, no. 1, pp. 323–335, Jan 2022, doi: 10.1109/TIE.2021.3050385.
[23] R. Rahimi, S. Habibi, M. Ferdowsi and P. Shamsi, “An Interleaved Quadratic High Step-Up DC-DC Converter With Coupled Inductor,” IEEE Open Journal of Power Electronics, vol. 2, pp. 647–658, Dec 2021, doi: 10.1109/OJPEL.2021.3133911.