High Gain Multi-input DC-DC Converter with Combined Phase-shift/PWM Modulation for Stand-Alone Applications

Document Type: Research paper


Department of Electrical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran


The existence of unreliable renewable energy resources would be required to use energy resources and storage units simultaneously, particularly in applications such as electrical vehicles and stand-alone energy supplying systems. The objective of this paper is to introduce a new topology of multi input converter in hybrid power supply system of photovoltaic, fuel cell and battery for medium power applications. In this converter, the current ripple is eliminated, due to the presence of the coupled inductor. On the other hand, the probability to achieve a high voltage efficiency, to develop a high voltage DC link, will be achieved by using two transformers, which their terminals are in series. Since a combination of the magnetizing and the leakage inductors of these two transformers are used, there will be a zero voltage switching for switches, and also a soft switching for the output diodes, because of the presence of the leakage inductor in the secondary side of transformers. Steady state model and control system is discussed for the proposed converter. A 200 watt experimental prototype has been made in laboratory to evaluate the proposed converter.


Main Subjects

[1]    M. S. Manoharan, A. Ahmed, J.-W. Seo and J.-H. Park, “Power conditioning for a small-scale PV system with charge-balancing integrated micro-inverter,” J. Power Electron., vol. 15, no. 5, pp. 1318-1328, 2015.

[2]    H. W. Ping, N. A. Rahim and J. Jamaludin, “New three-phase multilevel inverter with shared power switches,” J. Power Electron., vol. 13, no. 5, pp. 787-797, 2013.

[3]    M. Moradzadeh, S. Hamkari E. Zamiri, and R. Barzegarkhoo, “Novel high step-up DC/DC converter structure using a coupled inductor with minimal voltage stress on the main switch,” J. Power Electron., vol. 16, no. 6, pp. 2005-2015, 2016.

[4]    N. Mohan, W. Robbins and T. Undeland, “Power electronics: converters, applications, and design,” 2003.

[5]    R. W. Erickson and D. Maksimovic, Fundam. Power Electron., Springer, 2001.

[6]    C. Yaow-Ming, L. Yuan-Chuan and W. Feng-Yu, “Multi-input DC/DC converter based on the multiwinding transformer for renewable energy applications,” Ind. Appl. IEEE Trans., vol. 38, no. 4, pp. 1096-1104, 2002.

[7]    L. Cao, K. H. Loo, Y. M. Lai, C. K. Tse and Y. Yang, “A multi-input bi-directional converter with decoupled power distribution control,” Proc. 38th Annu. Conf. IEEE Ind. Electron. Soc., 2012, pp. 3346-3351.

[8]    M. M. Amin and O. A. Mohammed, “A novel grid-connected multi-input boost converter for HEVs: Design and implementation,” Proc. IEEE Int. Conf. Electr. Veh., 2012, pp. 1-7.

[9]    Z. Rehman, “Multiport power electronics circuitry for integration of renewable energy sources in low power applications: a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Electrical Engineering at Massey University, Palmerston North, New Zealand.” Massey University, 2017.

[10]   S. Xiaofeng, P. Guangming, Y. Shuai and C. Zhe, “A novel multi-port DC/DC converter with bi-directional storage unit,” Proc. 7th Int. Conf. Power Electron. Motion Control, 2012, vol. 3, pp. 1771-1775.

[11]   A. Khaligh, C. Jian and L. Young-Joo, “A multiple-input DC-DC converter topology,” IEEE Trans Power Electron., vol. 24, no. 3, pp. 862-868, 2009.

[12]   H. Matsuo, T. Shigemizu, F. Kurokawa and N. Watanabe, “Characteristics of the multiple-input DC-DC converter,” Proc. IEEE 24th Annu. Power Electron. Spec. Conf., 1993, pp. 115-120.

[13]   W. Hongfei, S. Kai, D. Shun and X. Yan, “Topology derivation of nonisolated three-port DC-DC converters from DIC and DOC,” IEEE Trans. Power Electron., vol. 28, no. 7, pp. 3297-3307, 2013.

[14]   R. Jie, L. Fuxin, R. Xinbo, Y. Dongsheng, L. Yan and J. Ke, “Isolated multiple-input DC/DC converter using alternative pulsating source as building cells,” Proc. Int. Power Electron. Conf., 2010, pp. 1463-1470.

[15]   Z. Qian, O. Abdel-Rahman and I. Batarseh, “An integrated four-port DC/DC converter for renewable energy applications,” IEEE Trans. Power Electron., vol. 25, no. 7, pp. 1877-1887, 2010.

[16]   B. Mangu, S. Akshatha, D. Suryanarayana and B. G. Fernandes, “Grid-connected PV-wind-battery-based multi-input transformer-coupled bidirectional DC-DC converter for household applications,” IEEE J. Emerg. Sel. Top. Power Electron., vol. 4, no. 3, pp. 1086-1095, Sep. 2016.

Volume 7, Issue 1
Winter and Spring 2019
Pages 49-57
  • Receive Date: 04 March 2018
  • Revise Date: 27 August 2018
  • Accept Date: 23 September 2018