Analysis of a High Step-up Boost-Flyback Converter for Solar Energy Applications

Subject Areas : Renewable energy

Mohammad mehdi Mirtalaee ¹ (استادیار - دانشکده مهندسی برق، دانشگاه آزاد اسلامی، واحد نجف‌آباد،‌ نجف‌آباد، ایران)
Razieh Jaberi ² (Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran)

Received: 2017-07-20 Accepted : 2018-07-17 Published : 2018-07-23

Keywords: Boost- Flyback converter, Interleaved, Zero-current switching,

Abstract :

In this paper an interleaved boost-flyback converter which was suitable for network connections of renewable energy sources is presented. Because in the solar system applications, level difference of the converter input and output voltage is high, boost converter cannot be used. Due to problems of the boost converter such as hard switching, voltage stress is equal to the output voltage. As regards in electronic converters, the power tends to increase the switching frequency to improve the converter response and increase its power density, hard switching caused to reduce converter efficiency. Also high voltage stresses of components have forced the designer to use semiconductor elements which can withstand in high voltage which will increase the losses in the converter and reduce its output. The proposed converter using LC resonant tank and auxiliary switches provides soft switching condition (ZCS) for the main converter. Interleaved techniques have used for reducing input current ripple and increase the size of the output capacitor and also boost-flyback converter have used to enhance converter gain and reduction of voltage stress of semiconductor components. The operating principle of the proposed converter is presented in this paper.

References:

[1] Huawu Liu, Haibing Hu, Hongfei Wu and Yan Xing, “Overview of High-Step-Up Coupled-Inductor Boost Converters”, IEEE Personal use is permitted  Vol. 4, No. 2, pp. 689-704, Feb. 2015.

[2] W. Li, X. He, “Review of nonisolated high-step-up dc-dc converter in photovoltaic grid-connected application”, IEEE Trans. on Industrial Electronics, Vol. 58, No. 4, pp. 1239-1250, April 2011.

[3] M. Rezvanyvardom, E. Adib, H. Farzanehfard, “New interleaved zero- current switching pulse- width modulation boost converter with one auxiliaty switch”, IET Power Electronics, Vol. 4, No. 9, pp.979-983, Nov. 2011.

[4] C.M. Wang, C.H. Lin, S.Y. Hsu, C.M. Lu, J.C. Li, "Analysis, design and performance of a zero- current- switching pulse- width- modulation interleaved boost dc-dc converter", IET Power Electronics, Vol. 7, No. 9, pp. 2437-2445, Sep. 2014.

[5] F.L. Tofoli, D.d.C. Pereira, W.J.d. Paula, D.d.S.O.J, xfa, nior, “Survey on non-isolated high-voltage step-up dc-dc topologies based on the boost converter”, IET Power Electronics, Vol. 8, No. 10, pp. 2044-2057, Sep. 2015.

[6] Xi Zhang, Senior Member, IEEE, Lei Jiang, Student Member, IEEE, Junjun Deng, Siqi Li, and Zheng Chen, Member, IEEE “Analysis and Design of a New Soft-Switching Boost Converter With a Coupled”, IEEE Transaction on Power Electronics, Vol, 29, No. 8, pp. 4270-4277, August 2014.

[7] Y. m. Ye and K. W. E. Cheng, “Quadratic boost converter with low buffer capacitor stress”, IET Power Electronics, Vol.  7, No. 5, pp. 1162-1170, May. 2014.

[8] K. Moon-Hwan, C. Yoon, H. Sang-Kyoo, and K. Jeong-Il, " High efficiency voltage-clamped coupled-inductor boost converter", Proceeding of the IEEE/IECON, pp. 828-833, Vienna, Austria, Nov. 2013.

[9] Y. Jang and M. M. Jovanoic, “New two-inductor boost converter with auxiliary transformer”, IEEE Transactions on Power Electronics, Vol. 19, No. 1, pp. 169-175, Jan. 2004.

[10] B. Gu, J. Dominic, J.S. Lai, Z. Zhao, C. Liu “High boost ratio hybrid transformer DC-DC converter for photovoltaic module applications”, IEEE Trans. Power. Electron., Vol. 28, No. 4, pp. 2048–2058, Apr. 2013.

[11] Y.P. Hsieh, J.F. Chen, T.J. Liang, Y.L. -Sheng, “Analysis and implementation of a novel single-switch high step-up dc-dc converter”, IET Power Electron., Vol. 5, No. 1, pp. 11–21, Jan. 2012.

[12] H.W. Seong, H.S. Kim, K.B Park, G.W. Moon, M.J.Youn,“High Step-Up DC-DC Converters Using Zero-Voltage Switching Boost Integration Technique and Light-Load Frequency modulation Control”, IEEE Trans. Power Electron., Vol. 27, No. 3, pp. 1383–1399, Mar. 2012.

[13] J.W. Baek, M.H. Ryoo, T.J. Kim, D.W. Yoo, J.S. Kim, “High boost converter using voltage multiplier”, in Proc. IEEE /IECON, pp. 567–572, Raleigh, NC, USA, Jan 2005.

[14] T.J. Liang, S.M. Chen, L.S. Yang, J.F. Chen, A. Ioinovici, “Ultra large gain step-up switched-capacitor DC-DC converter with coupled inductor for alternative sources of energy”, IEEE Trans. On Circuit and System, Vol. 59, No. 4, pp. 864-874, Apr.2012.

[15] K.C. Tseng, J.T. Lin, C.C. Huang, "High step-up converter with three-winding coupled inductor for fuel cell energy source applications", IEEE Trans. On Power Electronics, Vol. 30, No. 2, pp. 574-581, Feb. 2015.

[16] S.M. Chen, T.J. Liang, L.S. Yang, J.F. Chen, “A cascaded high step-up dc-dc converter with single switch for microsource applications”, IEEE Trans. Power Electron., Vol. 26, No. 4, pp. 1146– 1153, Apr. 2011.

[17] Y. Deng, Q. Rong, W. Li, Y. Zhao, J. Shi, X. He, “Single-switch high step-up converters with built-in transformer voltage multiplier cell”, IEEE Trans. Power Electron., Vol. 27, No. 8, pp. 3557–3567, Aug. 2012.

[18] K.B. Park, G.W. Moon, M.J. Youn, “Nonisolated high step-up boost converter integrated with sepic converter”, IEEE Trans. Power Electronics, Vol. 25, No. 9, pp. 2266-2275, Sept. 2010.

[19] W. Li, Y. Zhao, Y. Deng, X. He, “Interleaved converter with voltage multiplier cell for high step-up and high-efficiency conversion”, IEEE Trans. Power Electron., Vol. 25, No. 9, pp. 2397–2408, Sep. 2010.

[20] K.C. Tseng, C.C. Huang, W.Y. Shih, “A high step-up converter with a voltage multiplier module for a photovoltaic system”, IEEE Trans. Power Electron., Vol. 28, No. 6, pp. 3047–3057, Jun. 2013.

[21] S. Dwari, L. Parsa, “An efficient high-step-up interleaved dc–dc converter with a common active clamp”, IEEE Trans. Power Electron., Vol. 26, No. 1, pp. 66–78, Jan. 2011.

[22] C. Olalla, R. Leyva, I. Queinnec, D. Maksimovic, “Robust gain scheduled control of switched-mode DC–DC converters”, IEEE Trans. Power Electron., Vol. 27, No. 6, pp. 3006–3019, Jun. 2012.

[23] C.Y. Chan, “Analysis and experimental study of an output feedback controller for a high-order boost dc-dc converter”, IET Power Electron., Vol. 6, No. 7, pp. 1279–1287, Aug. 2013.

[24] K.I. Hwu, W.Z. Jiang, Y.T. Yau, “Ultrahigh step-down converter”, IEEE Trans. Power Electron., Vol. 30, No. 6, pp. 3262–3274, Jun. 2015.

[25] J. Yao, A. Abramovitz, K.M. Smedley, “Steep gain bidirectional converter with a regenerative snubber”, IEEE Trans. Power Electron., Vol. 30, No. 12, pp. 6845-6856, Dec. 2015.

[26] Y. Tang, D. Fu, J. Kan, T. Wang, “Dual switches DC/DC converter with three-winding-coupled inductor and charge pump”, IEEE Trans. Power Electron., Vol. 31, No. 1, pp. 461–469, Jan. 2016.