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Energies 2010, 3(11), 1821-1830; doi:10.3390/en3111821

Dynamic Modeling and Simulation on a Hybrid Power System for Electric Vehicle Applications

1,* , 1
1 National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing, 10081, China 2 The Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology, Warsaw, 02-524, Poland
* Author to whom correspondence should be addressed.
Received: 30 August 2010 / Revised: 7 October 2010 / Accepted: 16 November 2010 / Published: 22 November 2010
(This article belongs to the Special Issue Hybrid Vehicles)
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Hybrid power systems, formed by combining high-energy-density batteries and high-power-density ultracapacitors in appropriate ways, provide high-performance and high-efficiency power systems for electric vehicle applications. This paper first establishes dynamic models for the ultracapacitor, the battery and a passive hybrid power system, and then based on the dynamic models a comparative simulation between a battery only power system and the proposed hybrid power system was done under the UDDS (Urban Dynamometer Driving Schedule). The simulation results showed that the hybrid power system could greatly optimize and improve the efficiency of the batteries and their dynamic current was also decreased due to the participation of the ultracapacitors, which would have a good influence on batteries’ cycle life. Finally, the parameter matching for the passive hybrid power system was studied by simulation and comparisons.
Keywords: ultracapacitor; battery; hybrid power system; dynamic modeling; electric vehicles ultracapacitor; battery; hybrid power system; dynamic modeling; electric vehicles
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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He, H.-W.; Xiong, R.; Chang, Y.-H. Dynamic Modeling and Simulation on a Hybrid Power System for Electric Vehicle Applications. Energies 2010, 3, 1821-1830.

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