Design and Analysis of a 24 Vdc to 48 Vdc Bidirectional DC-DC Converter Specifically for a Distributed Energy Application

DOI: 10.4236/epe.2012.45041   PDF   HTML   XML   10,973 Downloads   15,310 Views   Citations


The design of a bidirectional dc-dc power converter specifically for a distributed energy application is presented. The existing two different DC voltage battery bank of the distributed generation needs to interlink each other using a bi-directional dc-dc converter in order to minimize the unbalance of the output load currents of the three inverters connected to electric grid system. Through this connection, a current can flow from one system to another or vice versa depending on which systems need the current most. Thus, unbalanced currents of the grid line have been minimized and the reliability and performance of the DER grid connected system has been increased. A detailed mathematical analysis of the converter under steady state and transient condition are presented. Mathematical models for boost and buck modes are being derived and the simulink model is constructed in order to simulate the system. Moreover, the model has been validated on the actual operation of the converter, showing that the simulated results in Matlab Simulink are consistent with the experimental ones.

Share and Cite:

A. Cultura II and Z. Salameh, "Design and Analysis of a 24 Vdc to 48 Vdc Bidirectional DC-DC Converter Specifically for a Distributed Energy Application," Energy and Power Engineering, Vol. 4 No. 5, 2012, pp. 315-323. doi: 10.4236/epe.2012.45041.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] K. Hirachi, M. Yamanaka, K. Kajiyama and S. Isokane, “Circuit Configuration of Bidirectional DC/DC Converter Specific for Small Scale Load Leveling System,” IEEE Transactions on Power Conversion, Vol. 2, 2002, pp. 603-609.
[2] G. Y. Chang, W. C. Lee, K. C. Lee and H. C. Bo, “Transient Current Suppression Scheme for Bi-Directional DC-DC Converters in 42V Automotive Power Systems,” Journal of Power Electronics, Vol. 9, No. 4, 2009, pp. 517-525.
[3] S. Rahmani, K. Al-Haddad and H. Y. Kanaan, “Two PWM Techniques for Single-Phase Shunt Active Power Filters Employing a Direct Current Control Strategy,” IET Power Electron, Vol. 1, No. 3, 2008, pp. 376-385. doi:10.1049/iet-pel:20070253
[4] J. G. Lee, S. Y. Choe, J. W. Ahn and S. H. Baek, “Modelling and Simulation of a Polymer Electrolyte Membrane Fuel Cell System with a PWM DC/DC Converter for Stationary Applications,” IET Power Electron, Vol. 1, No. 3, 2008, pp. 305-317. doi:10.1049/iet-pel:20060413
[5] M. H. Rashid, “Power Electronics-Circuits, Devices and Applications,” 3rd Edition, Pearson Education, Upper Saddle River, 2003.
[6] J. P. Agrawal, “Power Electronics Systems Theory and Design,” Prentice-Hall, Inc., Upper Saddle River, 2011.
[7] A. Cultura and Z. Salameh, “Design and Installation of a 10.56kWp Grid-Tied PV Power System at University of Massachusetts Lowell,” POWER-Gen Renewables and Fuels Conference, Las Vegas, 6-8 March 2007.
[8] W. Na and B. Gou, “Analysis and Control of Bidirectional DC/DC Converter for PEM Fuel Cell Applications,” IEEE Power and Energy Society General Meeting— Conversion and Delivery of Electrical Energy in the 21st Century, Pittsburgh, 20-24 July 2008, pp. 1-7.
[9] products/simulink/

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.