A New Zero Voltage Transition Quadratic High Step-Up Converter with Leakage Inductance Energy Recovery for Photovoltaic Applications

Alireza Abdelahi ¹ ( Faculty of Engineering- Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran )
Majid Delshad ² ( Faculty of Engineering- Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran )
Ramtin Sadeghi ³ ( Faculty of Engineering- Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran )

Submited date : 2023-06-04 Accepted date : 2023-10-02

Keywords: Photovoltaic system, High Step-up Converter, Low Voltage Stress, zero voltage switching, capacitive turn-on loss,

Abstract :

In this paper, a high step-up converter with leakage inductance energy recovery and zero voltage switching operation for both switches is presented. The auxiliary circuit not only uses the leakage inductance energy to increase voltage gain but also reduces switching and conduction losses of the semiconductor devices. The auxiliary circuit has only one snubber capacitor and one auxiliary switch, and the circuit capacitors are used as clamp capacitors. The low voltage stress of the switches makes it possible to use cheaper switches with more minor drain-source resistance. Also, the lifting voltage capacitor absorbs the leakage inductance energy. Due to zero voltage switching of switches, there are no capacitive turn-on losses, and due to switching off the diodes at zero-current conditions, the reverse recovery problem is solved in them, so the conduction losses of the converter are significantly reduced. On the other hand, the ripple input current in the converter has been dramatically reduced, which makes it very suitable for use in photovoltaic systems. The converter is implemented at 200 W and 350V output and the practical results confirm the theoretical analyzes.

References:

[1] M. Emamdad, E. Akbari, S. Karbasi, A. Zare Ghaleh Seyyedi, "Design and analysis of a new structure for non-isolated dc-dc boost converters", Journal of Intelligent Procedures in Electrical Technology, vol. 15, no. 58, pp. 109-120, Sept. 2024 (in Persian) (dor: 20.1001.1.23223871.1403.15.58.8.9).

[2] A. Dalirian, A.R. Solat, S.M.J. Rastegar-Fatemi, "Smart control of photovoltaic static compensator system based on fuzzy logic control to improve voltage stability", Journal of Intelligent Procedures in Electrical Technology, vol. 15, no. 60, pp. 119-134, March 2025 (in Persian).

[3] D. Taheri, G. Shahgholian, 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 and Distribution, vol. 16, no. 17, pp. 3473-3497, Sept. 2022 (doi: 10.1049/g­td2.1­2­537).

[4] M. Rahimi, B. Fani, M. Moazzami, M. Dehghani, G. Shahgholian, "An online free penetration multi-stage fuse saving protection scheme in distribution systems with photovoltaic sources", Iranian Electric Industry Journal of Quality and Productivity, vol. 9, no. 2, pp. 24-35, Sept. 2020 (doi: 10.29252/ieijq­p.9.2.24).

[5] I. Es-Haghpour, M. Delshad, S. Javadi, "A new interleaved ZVT high step-up converter with low input current ripple", International Journal of Electronics, vol. 109, no. 11, pp. 1935-1953, Dec. 2021 (doi: 10.1­08­­0/00207217.2021.2001861).

[6] A. Kianpour, G. Shahgholian, "A floating-output interleaved boost dc-dc converter with high step-up gain", Automatika, vol. 58, no. 1, pp. 18-26, April 2017 (doi: 10.1080/00051144.2017.1305605).

[7] R. Ling, G. Zhao, Q. Huang, "High step-up interleaved boost converter with low switch voltage stress", Electric Power Systems Research, vol. 128, pp. 11-18, Nov. 2015 (doi: 10.1016/j.epsr.2015.06.016).

[8] R. Rahimi, S. Habibi, M. Ferdowsi, P. Shamsi, "An interleaved high step-up dc-dc converter based on integration of coupled inductor and built-in-transformer with switched-capacitor cells for renewable energy applications", IEEE Access, vol. 10, pp. 34-45, Dec. 2022 (doi: 10.1109/ACCESS.2021.3138390).

[9] R. Beiranvand, S.H. Sangani, "A family of interleaved high step-up dc–dc converters by integrating a voltage multiplier and an active clamp circuits", IEEE Trans. on Power Electronics, vol. 37, no. 7, pp. 8001-8014, Jan. 2022 (doi: 10.1109/TPEL.2022.3141941).

[10] G. Haghshenas, S.M.M. Mirtalaei, H. Mordmand, G. Shahgholian,"High step-up boost-flyback converter with soft switching for photovoltaic applications", Journal of Circuits, Systems, and Computers, vol. 28, no. 1, pp. 1-16, Jan. 2019  (doi: 10.1142/S0218126619500142).

[11] S. Hasanpour, Y.P. Siwakoti, F. Blaabjerg, "Analysis of a new soft-switched step-up trans-inverse DC/DC converter based on three-winding coupled-inductor", IEEE Trans. on Power Electronics, vol. 37, no. 2, pp. 2203-2215, Aug. 2022 (doi: 10.1109/TPEL.2021.3103978).

[12] V.F. Pires, D. Foito, J.F. Silva, "A single switch hybrid DC/DC converter with extended static gain for photovoltaic applications", Electric Power Systems Research, vol. 146, pp. 228-235, May 2017 (doi: 10.1016/j.epsr.2017.02.001).

[13] Y. Zhao, X. Xiang, C. Li, Y. Gu, W. Li,  X. He, "Single-phase high step-up converter with improved multiplier cell suitable for half-bridge-based PV inverter system", IEEE Trans. on Power Electronics, vol. 29, no. 6, pp. 2807-2816, July 2014 (doi: 10.1109/TPEL.2013.2273975).

[14] L. Schmitz, D.C. Martins, R.F. Coelho, "High step-up nonisolated ZVS/ZCS DC–DC converter for photovoltaic thin-film module applications", IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 7, no. 1, pp. 565-575, March 2019 (doi: 10.1109/JESTPE.2018.2830650).

[15] R. Cheraghi, E. Adib, M.S. Golsorkhi, "A nonisolated high step-up three-port soft-switched converter with minimum switches", IEEE Trans. on Industrial Electronics, vol. 68, no. 10, pp. 9358-9365, Sept. 2021 (doi: 10.1109/TIE.2020.3026306).

[16] Y. Zheng, B. Brown, W. Xie, S. Li, K. Smedley, "High step-up DC–DC converter with zero voltage swit­ch­i­ng and low input current ripple", IEEE Trans. on Power Electronics, Vol. 35, pp. 9416-9429, Sept. 2020 (doi  10.1109/TPEL.2020.2968613).

[17] S. Shabani, M. Delshad, R. Sadeghi, H.H. Alhelou, "A high step-up PWM non-isolated DC-DC converter with soft switching operation", IEEE Access, vol. 10, pp. 37761-37773, March 2022 (doi: 10.1109/ACC­ESS.­2­022.3163146).

[18] B.W. Williams, "Unified synthesis of tapped-inductor dc-to-dc converters", IEEE Trans. on Power Electronics, vol. 29, pp. 5370–5383, Oct. 2014 (doi: 10.1109/TPEL.2013.2291561).

[19] T. F. Wu, Y.S. Lai, J.C. Hung, Y. M. Chen, "Boost converter with coupled inductors and buck-boost type of active clamp", IEEE Trans.on Industrial Electronics, vol. 55, pp. 154–162, Jan. 2008 (doi: 10.1109/TIE.2­007­.9­03925).

[20] M. Mirtalaee, R.A. Nafchi, "Boost high step-up dc/dc converter with coupled inductors and diode-capacitor technique", Journal of Intelligent Procedures in Electrical Technology, vol. 10, no.39, pp. 3-12, Nov. 2019 (in Persian) (dor: 20.1001.1.23223871.1398.10.39.1.9).

[21] J. Jalili, S.M.M. Mirtalaei, M.R. Mohammadi, B. Majidi, "A non-isolated high step-up soft-switching converter with coupled-inductor", Journal of Intelligent Procedures in Electrical Technology, vol. 15, no. 57, pp. 1-14, June 2022 (in Persian) (dor: 20.1001.1.23223871.1403.15.57.1.0).