Research PaperNo Access

High Step-Up Boost-Fly-Back Converter with Soft Switching for Photovoltaic Applications

Ghasem Haghshenas

Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran

Search for more papers by this author

Sayyed Mohammad Mehdi Mirtalaei

Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran

Search for more papers by this author

Hamed Mordmand

Smart Microgrid Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran

Search for more papers by this author

, and

Ghazanfar Shahgholian

http://orcid.org/0000-0003-2774-4694

Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran

E-mail Address: shahgholian@iaun.ac.ir

Corresponding author.

Search for more papers by this author

https://doi.org/10.1142/S0218126619500142Cited by:10 (Source: Crossref)

Abstract

In this paper, a novel high step-up single switch DC–DC converter with soft switching is presented. The main application of this converter is the connection of photovoltaic (PV) system to a 400V DC-bus. The proposed converter achieves high step-up voltage gain with small duty cycle by a combined boost and fly-back topology. Also, its switch voltage stress is lower than the output voltage. Besides, in the proposed converter, any auxiliary switch or magnetic core has not been used — therefore, the number of converter components has not been increased much in comparison with the conventional boost-fly-back converter. The operation principles of the converter and its theoretical operation waveforms are presented. In order to evaluate the theoretical analysis, a prototype of the converter is designed and experimentally implemented. The practical results are presented for a 100W boost-fly-back converter with input voltage of 40V and output voltage of 400V. Also, the output capacitor is designed to have less than 1% ripple on output voltage.

This paper was recommended by Regional Editor Piero Malcovati.

Keywords:

References

1. A. Jafari and G. Shahgholian , Analysis and simulation of a sliding mode controller for mechanical part of a doubly-fed induction generator based wind turbine, IET Gener. Transm. Distrib. 11 (2017) 2677–2688. Web of Science, Google Scholar
2. S. H. Mozafarpoor-Khoshrodi and G. Shahgholian , Improvement of perturb and observe method for maximum power point tracking in wind energy conversion system using fuzzy controller, Energy Equip. Syst. 4 (2016) 111–122. Google Scholar
3. S. M. M. Mirtalaei, S. H. H. Sadeghi and R. Moini , A combined method-of-moments and near-field measurements for EMI evaluation of switched-mode power supplies, IEEE Trans. Ind. Electron. 61 (2014) 1811–1818. Web of Science, Google Scholar
4. R. W. Erickson and D. Maksimovic , Fundamentals of Power Electronics, 2nd edn. (Kluwer Academic publishers, Norwell, MA, USA, 2001). Google Scholar
5. Q. Zhao, F. Tao, F. C. Lee, P. Xu and J. Wei , A simple and effective to alleviate the rectifier reverse-recovery problem in continuous-current-mode boost converter, IEEE Trans. Power Electron. 16 (2001) 649–658. Web of Science, Google Scholar
6. M. Soltani and M. M. Mirtalaei , Design and simulation of a high step-up three level boost converter with coupled-inductor and passive clamp, J. Intell. Procedures Electr. Technol. 8 (2018) 15–26. Google Scholar
7. W. Li and X. He , Review of non-isolated high step-up DC/DC converters in photovoltaic grid-connected applications, IEEE Trans. Ind. Electron. 58 (2011) 1239–1250. Web of Science, Google Scholar
8. A. Kianpour and G. Shahgholian , A floating-output interleaved boost DC–DC converter with high step-up gain, J. Control Meas. Electron. Comput. Commun. 58 (2017) 18–26. Google Scholar
9. N. Costantino, R. Serventi, F. Tinfena, P. D’Abramo, P. Chassard, P. Tisserand, S. Saponara and L. Fanucci , Design and test of an HV-CMOS intelligent power switch with integrated protections and self-diagnostic for harsh automotive applications, IEEE Trans. Ind. Electron. 58 (2011) 2715–2727. Web of Science, Google Scholar
10. S. Saponara, L. Fanucci, F. Bernardo and A. Falciani , Predictive diagnosis of high-power transformer faults by networking vibration measuring nodes with integrated signal processing, IEEE Trans. Instrum. Meas. 65 (2016) 1749–1760. Web of Science, Google Scholar
11. J. M. Kwon and B. H. Kwon , High step-up active-clamp converter with input-current doubler and output-voltage doubler for fuel cell power systems, IEEE Trans. Power Electron. 24 (2009) 108–115. Web of Science, Google Scholar
12. L. Zhu , A novel soft-commutating isolated boost full-bridge ZVS-PWM DC–DC converter for bidirectional high power applications, IEEE Trans. Power Electron. 21 (2006) 422–429. Web of Science, Google Scholar
13. R. J. Wai, W. H. Wang and C. Y. Lin , High-performance stand-alone photovoltaic generation system, IEEE Trans. Ind. Electron. 55 (2008) 240–250. Web of Science, Google Scholar
14. H. Kim, J. Kim, H. Kim, K. Lee, J. Kim, D. Yoo and D. Shin , A high efficiency photovoltaic module integrated converter with the asymmetrical half-bridge fly-back converter, Sol. Energy 84 (2010) 1376–1381. Web of Science, Google Scholar
15. G. Dileep and S. N. Singh , Selection of non-isolated DC-DC converters for solar photovoltaic system, Renew. Sustain. Energy Rev. 76 (2017) 1230–1247. Web of Science, Google Scholar
16. K. Nghitevelekwa and R. C. Bansal , A review of generation dispatch with large-scale photovoltaic systems, Renew. Sustain. Energy Rev. 81 (2018) 615–624. Web of Science, Google Scholar
17. M. Prudente, L. L. Pfitscher, G. Emmendoerfer, E. F. Romaneli and R. Gules , Voltage multiplier cells applied to non-isolated DC–DC converters, IEEE Trans. Power Electron. 23 (2008) 871–887. Web of Science, Google Scholar
18. F. Zhang, L. Du, F. Z. Peng and Z. Qian , A new design method for high power high-efficiency switched-capacitor DC–DC converters, IEEE Trans. Power Electron. 23 (2008) 832–840. Web of Science, Google Scholar
19. E. H. Ismail, M. A. Al-Saffar, A. J. Sabzali and A. A. Fardoun , A family of single-switch PWM converters with high step-up conversion ratio, IEEE Trans. Circuits Syst. 55 (2008) 1159–1171. Google Scholar
20. S. A. Mohammed, H. Dogan and M. T. Ozgun , An 85%-efficiency reconfigurable multiphase switched capacitor DC-DC converter utilizing frequency, switch size, and interleaving scaling techniques, Microelectron. J. 67 (2017) 155–161. Web of Science, Google Scholar
21. D. Wang, X. He and R. Zhao , ZVT interleaved boost converters with built-in voltage doubler and current auto-balance characteristic, Electronics 23 (2008) 2874–2854. Web of Science, Google Scholar
22. C. Chun-Kit, T. Siew-Chong, C. K. Tse and A. Ioinovici , On energy efficiency of switched-capacitor converters, IEEE Trans. Power Electron. 28 (2013) 862–876. Web of Science, Google Scholar
23. Z. Ke, M. J. Scott and W. Jin , Switched-Capacitor-Cell-Based voltage multipliers and DC–AC inverters, IEEE Trans. Ind. Appl. 48 (2012) 1598–1609. Web of Science, Google Scholar
24. L. S. Yang, T. J. Liang, H. C. Lee and J. F. Chen , Novel high step-up DC–DC converter with coupled-inductor and voltage-doubler circuits, IEEE Trans. Ind. Electron. 58 (2011) 4196–4206. Web of Science, Google Scholar
25. G. Haghshenas and M. M. Mirtalaee , Design and implementation of a high step-up boost-fly back converter with soft switching, J. Intell. Procedures Electr. Technol. 7 (2017) 15–26. Google Scholar
26. Y. P. Hsieh, J. F. Chen, T. J. Liang and L. S. Yang , A novel high step-up DC–DC converter for a microgrid system, IEEE Trans. Power Electron. 26 (2011) 1127–1136. Web of Science, Google Scholar
27. K. C. Tseng, C. C. Huang and W. Y. Shih , A high step-up converter with a voltage multiplier module for a photovoltaic system, IEEE Trans. Power Electron. 28 (2013) 3047–3057. Web of Science, Google Scholar
28. S. M. Chen, T. J. Liang, L. S. Yang and J. F. Chen , A boost converter with capacitor multiplier and coupled inductor for AC module applications, IEEE Trans. Ind. Electron. 60 (2013) 1503–1511. Web of Science, Google Scholar
29. W. Li, X. Xiang, C. Li, W. Li and X. He , Interleaved high Step-Up ZVT converter with built-in transformer voltage doubler cell for distributed PV generation system, IEEE Trans. Power Electron. 28 (2013) 300–313. Web of Science, Google Scholar
30. W. Li and X. He , A family of interleaved DC/DC converters deduced from a basic cell with winding-cross-coupled inductors (WCCIs) for high step-up or step-down conversions, IEEE Trans. Power Electron. 22 (2008) 1499–1507. Web of Science, Google Scholar
31. W. Li and X. He , ZVT interleaved boost converters for high-efficiency, high-step-up DC/DC conversion, IET Electr. Power Appl. 1 (2007) 284–290. Web of Science, Google Scholar
32. W. Li, Y. Zhao, J. Wu and X. He , Interleaved high step-up converter with winding-cross-coupled inductors and voltage multiplier cells, IEEE Trans. Power Electron. 27 (2012) 133–143. Web of Science, Google Scholar
33. W. Li, Y. Zhao, J. Wu and X. He , Interleaved high step-up converter with winding-cross-coupled inductors and voltage multiplier cells, IEEE Trans. Power Electron. 27 (2012) 133–143. Web of Science, Google Scholar
34. M. Esteki, M. Mohammadi, M. R. Yazdani, E. Adib and H. Farzanehfar , Family of soft-switching pulse-width modulation converters using coupled passive snubber, IET Power Electron. 10 (2017) 792–800. Web of Science, Google Scholar
35. Y. T. Jang and M. M. Jovanovic , Interleaved boost converter with intrinsic voltage-doubler characteristic for universal-line PFC front end, IEEE Trans. Power Electron. 22 (2007) 1394–1401. Web of Science, Google Scholar
36. S. Lee, P. Kim and S. Choi , High step-up soft-switched converters using voltage multiplier cells, IEEE Trans. Power Electron. 28 (2013) 3379–3387. Web of Science, Google Scholar
37. L. S. Yang, T. J. Liang and J. F. Chen , Transformerless DC–DC converters with high step-up voltage gain, IEEE Trans. Ind. Electron. 56 (2009) 3144–3152. Web of Science, Google Scholar
38. A. A. Fardoun and E. H. Ismail , Ultra step-up DC–DC converters with reduced switch stress, IEEE Trans. Ind. Appl. 46 (2010) 2025–2034. Web of Science, Google Scholar
39. K. Hwu, W. Jiang and L. Yang , High-step-up single-switch DC–DC converter with low voltage spike, IET Power Electron. 8 (2015) 2504–2510. Web of Science, Google Scholar
40. K. Tseng, J. Lin and C. Huang , High step-up converter with three-winding coupled inductor for fuel cell energy source applications, IEEE Trans. Power Electron. 30 (2015) 574–581. Web of Science, Google Scholar
41. M. Khalilzadeh and K. Abbaszadeh , Non-isolated high step-up DC–DC converter based on coupled inductor with reduced voltage stress, IET Power Electron. 8 (2015) 2184–2194. Web of Science, Google Scholar
42. M. Das and V. Agarwal , Generalized small signal modeling of coupled-inductor-based high-gain high-efficiency DC–DC converters, IEEE Trans. Ind. Appl. 53 (2017) 2257–2270. Web of Science, Google Scholar