Investigation of Efficiency and Thermal Performance of The Y-source Converters for a Wide Voltage Range

Brwene Salah Gadalla, Erik Schaltz, Yam Siwakoti, Frede Blaabjerg


The Y-source topology has a unique advantage of having high voltages gain with small shoot through duty cycles. Furthermore, having the advantage of high modulation index which increase the power density and improve the performance of the converter. In this paper, a collective thermal and efficiency investigation has been performed in order to improve the reliability of the converter. Evaluation of relevant losses as ( switching, conduction, capacitor ESR, core and winding losses ), and evaluation of the junction temperature of the devices under 25C ambient temperature. The analysis is done for different voltage gain factors (2, 3, and 4), and different winding factor (4, and 5) using PLECS toolbox. The results shows that the higher the voltage gain and winding factor, the higher power losses and rising in the junction temperature of the device.


Y-Source Converter; core losses; winding losses; Thermal-Voltage gain; Duty cycle

Full Text:



J.-M. Shen, H.-L. Jou, and J.-C. Wu, “Ripple voltage suppression method for dc/dc boost converter of the grid-connected renewable power generation system,” in IEEE International Conference on Sustainable Energy Technologies, 2008. ICSET 2008., Nov 2008, pp. 110–115.

Y. Siwakoti, F. Z. Peng, F. Blaabjerg, P. C. Loh, and G. Town, “Impedance-source networks for electric power conversion part i: A topological review,” IEEE Transactions on Power Electronics, vol. 30, no. 2, pp. 699–716, Feb 2015.

O. Hegazy, J. Van Mierlo, and P. Lataire, “Analysis, control and comparison of dc/dc boost converter topologies for fuel cell hybrid electric vehicle applications,” in Proceedings of the 2011-14th European Conference on Power Electronics and Applications (EPE 2011), Aug

, pp. 1–10.

A. K. Chanudhary, S. K. Singh, S. Singh, and F. Ahmed, “Reliability tests and thermal modelling for inverter in hybrid electrical vehicles,” International Journal of Scientific Technology Research, vol. 1, no. 4, pp. 1–5, May 2012.

Y. Siwakoti, G. Town, P. C. Loh, and F. Blaabjerg, “Ysource inverter,” in IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2014, June 2014, pp. 1–6.

Y. Siwakoti, P. C. Loh, F. Blaabjerg, and G. Town, “Ysource impedance network,” in 2014 Twenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition (APEC),, March 2014, pp. 3362 3366.

Y. Siwakoti, P. C. Loh, F. Blaabjerg, S. Andreasen, and G. Town, “Y-source boost dc/dc converter for distributed generation,” IEEE Transactions on Industrial Electronics, vol. 62, no. 2, pp. 1059–1069, Feb 2015.

J. Muhlethaler, J. Biela, J. Kolar, and A. Ecklebe, “Core losses under the dc bias condition based on steinmetz parameters,” IEEE Transactions on Power Electronics, vol. 27, no. 2, pp. 953–963, Feb 2012.



  • There are currently no refbacks.

Copyright (c) 2016 Brwene Salah Gadalla

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Renewable Energy and Sustainable Development

E-ISSN: 2356-8569

P-ISSN: 2356-8518


Published by:

Academy Publishing Center (APC)

Arab Academy for Science, Technology and Maritime Transport (AASTMT)