Bidirectional DC-DC Converter for Hybrid Electric Vehicles with Dual Energy Storage

A new BDC topology was presented to interface dual battery energy sources and high-voltage dc bus of different voltage levels. The circuit configuration, operation principles, analyses, and static voltage gains of the proposed BDC were discussed on the basis of different modes of power transfer. Simulation waveforms for a 1 kW prototype system highlighted the performance and feasibility of this proposed BDC topology. The highest conversion efficiencies were generated for the high-voltage dc-bus energy-regenerative buck mode, low-voltage dual-source- powering mode, low-voltage dual-source boost mode (ES2 to ES1), and low-voltage dual-source buck mode (ES1 to ES2), respectively. In this paper fuzzy logic controller is used to enhance the proposed topology. The results demonstrate that the proposed BDC can be successfully applied in FC/HEV systems to produce hybrid power architecture.

[1] Ching-Ming Lai, Member, IEEE, Yu-Huei Cheng, Senior Member, IEEE, Ming-Hua Hsieh, and Yuan-Chih Lin” Development of a Bidirectional DC/DC Converter with Dual-Battery Energy Storage for Hybrid  Electric Vehicle System” 2017 IEEE [2] M. Ehsani, K. M. Rahman, and H. A. Toliyat, "Propulsion system design  of electric and hybrid vehicles," IEEE Transactions on industrial  electronics, vol. 44, no. 1, pp. 19-27, 1997. [3] A. Emadi, K. Rajashekara, S. S. Williamson, and S. M. Lukic,  "Topological overview of hybrid electric and fuel cell vehicular power  system architectures and configurations," IEEE Transactions on  Vehicular Technology, vol. 54, no. 3, pp. 763-770, 2005. [4] A. Emadi, S. S. Williamson, and A. Khaligh, "Power electronics intensive solutions for advanced electric, hybrid electric, and fuel cell vehicular power systems," IEEE Transactions on Power Electronics, vol. 21, no. 3, pp. 567-577, 2006.  [5] P. Thounthong, V. Chunkag, P. Sethakul, B. Davat, and M. Hinaje,  "Comparative study of fuel-cell vehicle hybridization with battery or  supercapacitor storage device," IEEE transactions on vehicular  technology, vol. 58, no. 8, pp. 3892-3904, 2009. [6] C. C. Chan, A. Bouscayrol, and K. Chen, "Electric, hybrid, and fuel-cell  vehicles: Architectures and modeling," IEEE transactions on vehicular  technology, vol. 59, no. 2, pp. 589-598, 2010. [7] A. Khaligh and Z. Li, "Battery, ultracapacitor, fuel cell, and hybrid energy  storage systems for electric, hybrid electric, fuel cell, and plug-in hybrid  electric vehicles: State of the art," IEEE transactions on Vehicular  Technology, vol. 59, no. 6, pp. 2806-2814, 2010. [8] K. Rajashekara, "Present status and future trends in electric vehicle  propulsion technologies," IEEE Journal of Emerging and Selected  Topics in Power Electronics, vol. 1, no. 1, pp. 3-10, 2013. [9] C.-M. Lai, Y.-C. Lin, and D. Lee, "Study and implementation of a  two-phase interleaved bidirectional DC/DC converter for vehicle and  dc-microgrid systems," Energies, vol. 8, no. 9, pp. 9969-9991, 2015. [10] C.-M. Lai, "Development of a novel bidirectional DC/DC converter  topology with high voltage conversion ratio for electric vehicles and  DC-microgrids," Energies, vol. 9, no. 6, p. 410, 2016.