High-efficiency single-stage bidirectional converter with multi-input power sources

High-efficiency single-stage bidirectional converter with multi-input power sources

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
IET Electric Power Applications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

A multiple-input, single-stage bidirectional converter is proposed. It takes a three-winding coupled inductor as the main component of energy transmission, and utilises only two switches to accomplish the multi-input mechanism. Depending on the switching conditions, the circuit can be operated at discharge, charge and alone states. The winding voltage in the high-voltage side of the coupled inductor is manipulated to further increase the corresponding voltage gain, a strategy that is superior to one in the conventional coupled-inductor. This topology is useful for low-power applications. In addition, all switches and diodes have favourable voltage-clamping effects so that the voltage spikes caused by the leakage-inductor energy can be alleviated effectively, and reverse-recovery currents within diodes can be reduced, because the leakage inductor has limited capability to handle quick current changes. There is also a low-voltage-type charge circuit with no increase in additional circuit elements. This helps -to avoid power losses that arise from multistage conversions in traditional auxiliary power systems. This strategy also utilises the synchronous rectification technique to further decrease conduction losses. Numerical simulations and experimental results via examples of a proton exchange membrane fuel cell power source and a traditional battery module are given to demonstrate the effectiveness of the proposed power conversion strategy.


    1. 1)
    2. 2)
      • L. Solero , A. Lidozzi , J.A. Pomilio . Design of multiple-input power converter for hybrid vehicles. IEEE Appl. Power Electron. Conf. Exposition , 1145 - 1151
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
      • L. Gao , Z. Jiang , R.A. Dougal . Evaluation of active hybrid fuel cell/battery power sources. IEEE Trans. Aerosp. Electron. Syst. , 1 , 346 - 355
    9. 9)
    10. 10)
    11. 11)
      • K. Hirachi , M. Yamanaka , K. Kajiyama , S. Isokane . Circuit configuration of bidirectional DC/DC converter specific for small scale load leveling system. IEE Power Convers. Conf. , 603 - 609
    12. 12)
    13. 13)
      • R.J. Wai , L.W. Liu , C.H. Lu . A novel coupled-inductor converter with voltage-clamped circuit. Electron Technol. Inf. Mag. , 61 - 68
    14. 14)
      • R.J. Wai , C.Y. Lin , R.Y. Duan . High-efficiency DC-DC converter with high-voltage gain and reduced switch stress. IEEE Conf. Indust. Electron., Control Instrum. (IECON) , 773 - 778
    15. 15)
      • R.J. Wai , R.Y. Duan . High-efficiency DC/DC converter with high-voltage gain. R.O.C. Symp. Electrical Power Eng. , 522 - 527
    16. 16)
    17. 17)

Related content

This is a required field
Please enter a valid email address