Energy Management and Control of Electric Vehicles, Using Hybrid Power Source in Regenerative Braking Operation

Bo Long, Shin Teak Lim, Zhi Feng Bai, Ji Hyoung Ryu and Kil To Chong
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Bo Long: School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Shin Teak Lim: Departments of Electronics & Information Engineering, Chonbuk National University, Jeonju 567, Korea
Zhi Feng Bai: School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Ji Hyoung Ryu: Departments of Electronics & Information Engineering, Chonbuk National University, Jeonju 567, Korea
Kil To Chong: Departments of Electronics & Information Engineering, Chonbuk National University, Jeonju 567, Korea

Energies, 2014, vol. 7, issue 7, 1-16

Abstract: Today’s battery powered electric vehicles still face many issues: (1) Ways of improving the regenerative braking energy; (2) how to maximally extend the driving-range of electric vehicles (EVs) and prolong the service life of batteries; (3) how to satisfy the energy requirements of the EVs both in steady and dynamic state. The electrochemical double-layer capacitors, also called ultra-capacitors (UCs), have the merits of high energy density and instantaneous power output capability, and are usually combined with power battery packs to form a hybrid power supply system (HPSS). The power circuit topology of the HPSS has been illustrated in this paper. In the proposed HPSS, all the UCs are in series, which may cause an imbalanced voltage distribution of each unit, moreover, the energy allocation between the batteries and UCs should also be considered. An energy-management scheme to solve this problem has been presented. Moreover, due to the parameter variations caused by temperature changes and produced errors, the modelling procedure of the HPSS becomes very difficult, so an H ? current controller is presented. The proposed hybrid power source circuit is implemented on a laboratory hardware setup using a digital signal processor (DSP). Simulation and experimental results have been put forward to demonstrate the feasibility and validity of the approach.

Keywords: electric vehicle; H ? control; ultra-capacitor; hybrid power supply system; energy management (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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